CFGM.cpp revision b39d209d32ef988462e1748213acf6197748dc84
/* $Id$ */
/** @file
* CFGM - Configuration Manager.
*/
/*
* Copyright (C) 2006-2008 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*/
/** @page pg_cfgm CFGM - The Configuration Manager
*
* The configuration manager is a directory containing the VM configuration at
* run time. It works in a manner similar to the windows registry - it's like a
* file system hierarchy, but the files (values) live in a separate name space
* and can include the path separators.
*
* The configuration is normally created via a callback passed to VMR3Create()
* via the pfnCFGMConstructor parameter. To make testcase writing a bit simpler,
* we allow the callback to be NULL, in which case a simple default
* configuration will be created by CFGMR3ConstructDefaultTree(). The
* Console::configConstructor() method in Main/ConsoleImpl2.cpp creates the
* configuration from the XML.
*
* Devices, drivers, services and other PDM stuff are given their own subtree
* where they are protected from accessing information of any parents. This is
* is implemented via the CFGMR3SetRestrictedRoot() API.
*
* Data validation out over the basic primitives is left to the caller. The
* caller is in a better position to know the proper validation rules of the
* individual properties.
*
* @see grp_cfgm
*
*
* @section sec_cfgm_primitives Data Primitives
*
* CFGM supports the following data primitives:
* - Integers. Representation is unsigned 64-bit. Boolean, unsigned and
* small integers, and pointers are all represented using this primitive.
* - Zero terminated character strings. These are of course UTF-8.
* - Variable length byte strings. This can be used to get/put binary
* objects like for instance RTMAC.
*
*/
/*******************************************************************************
* Header Files *
*******************************************************************************/
#define LOG_GROUP LOG_GROUP_CFGM
#include <VBox/vmm/cfgm.h>
#include <VBox/vmm/dbgf.h>
#include <VBox/vmm/mm.h>
#include "CFGMInternal.h"
#include <VBox/vmm/vm.h>
#include <VBox/err.h>
#include <VBox/log.h>
#include <iprt/assert.h>
#include <iprt/string.h>
#include <iprt/uuid.h>
/*******************************************************************************
* Internal Functions *
*******************************************************************************/
static void cfgmR3DumpPath(PCFGMNODE pNode, PCDBGFINFOHLP pHlp);
static void cfgmR3Dump(PCFGMNODE pRoot, unsigned iLevel, PCDBGFINFOHLP pHlp);
static DECLCALLBACK(void) cfgmR3Info(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
static int cfgmR3ResolveNode(PCFGMNODE pNode, const char *pszPath, PCFGMNODE *ppChild);
static int cfgmR3ResolveLeaf(PCFGMNODE pNode, const char *pszName, PCFGMLEAF *ppLeaf);
static int cfgmR3InsertLeaf(PCFGMNODE pNode, const char *pszName, PCFGMLEAF *ppLeaf);
static void cfgmR3RemoveLeaf(PCFGMNODE pNode, PCFGMLEAF pLeaf);
static void cfgmR3FreeValue(PCFGMLEAF pLeaf);
/**
* Constructs the configuration for the VM.
*
* @returns VBox status code.
* @param pVM Pointer to VM which configuration has not yet been loaded.
* @param pfnCFGMConstructor Pointer to callback function for constructing the VM configuration tree.
* This is called in the EM.
* @param pvUser The user argument passed to pfnCFGMConstructor.
* @thread EMT.
*/
VMMR3DECL(int) CFGMR3Init(PVM pVM, PFNCFGMCONSTRUCTOR pfnCFGMConstructor, void *pvUser)
{
LogFlow(("CFGMR3Init: pfnCFGMConstructor=%p pvUser=%p\n", pfnCFGMConstructor, pvUser));
/*
* Init data members.
*/
pVM->cfgm.s.pRoot = NULL;
/*
* Register DBGF into item.
*/
int rc = DBGFR3InfoRegisterInternal(pVM, "cfgm", "Dumps a part of the CFGM tree. The argument indicates where to start.", cfgmR3Info);
AssertRCReturn(rc,rc);
/*
* Root Node.
*/
PCFGMNODE pRoot = (PCFGMNODE)MMR3HeapAllocZ(pVM, MM_TAG_CFGM, sizeof(*pRoot));
if (!pRoot)
return VERR_NO_MEMORY;
pRoot->pVM = pVM;
pRoot->cchName = 0;
pVM->cfgm.s.pRoot = pRoot;
/*
* Call the constructor if specified, if not use the default one.
*/
if (pfnCFGMConstructor)
rc = pfnCFGMConstructor(pVM, pvUser);
else
rc = CFGMR3ConstructDefaultTree(pVM);
if (RT_SUCCESS(rc))
{
Log(("CFGMR3Init: Successfully constructed the configuration\n"));
CFGMR3Dump(CFGMR3GetRoot(pVM));
}
else
AssertMsgFailed(("Constructor failed with rc=%Rrc pfnCFGMConstructor=%p\n", rc, pfnCFGMConstructor));
return rc;
}
/**
* Terminates the configuration manager.
*
* @returns VBox status code.
* @param pVM VM handle.
*/
VMMR3DECL(int) CFGMR3Term(PVM pVM)
{
CFGMR3RemoveNode(pVM->cfgm.s.pRoot);
pVM->cfgm.s.pRoot = NULL;
return 0;
}
/**
* Gets the root node for the VM.
*
* @returns Pointer to root node.
* @param pVM VM handle.
*/
VMMR3DECL(PCFGMNODE) CFGMR3GetRoot(PVM pVM)
{
return pVM->cfgm.s.pRoot;
}
/**
* Gets the parent of a CFGM node.
*
* @returns Pointer to the parent node.
* @returns NULL if pNode is Root or pNode is the start of a
* restricted subtree (use CFGMr3GetParentEx() for that).
*
* @param pNode The node which parent we query.
*/
VMMR3DECL(PCFGMNODE) CFGMR3GetParent(PCFGMNODE pNode)
{
if (pNode && !pNode->fRestrictedRoot)
return pNode->pParent;
return NULL;
}
/**
* Gets the parent of a CFGM node.
*
* @returns Pointer to the parent node.
* @returns NULL if pNode is Root or pVM is not correct.
*
* @param pVM The VM handle, used as token that the caller is trusted.
* @param pNode The node which parent we query.
*/
VMMR3DECL(PCFGMNODE) CFGMR3GetParentEx(PVM pVM, PCFGMNODE pNode)
{
if (pNode && pNode->pVM == pVM)
return pNode->pParent;
return NULL;
}
/**
* Query a child node.
*
* @returns Pointer to the specified node.
* @returns NULL if node was not found or pNode is NULL.
* @param pNode Node pszPath is relative to.
* @param pszPath Path to the child node or pNode.
* It's good style to end this with '/'.
*/
VMMR3DECL(PCFGMNODE) CFGMR3GetChild(PCFGMNODE pNode, const char *pszPath)
{
PCFGMNODE pChild;
int rc = cfgmR3ResolveNode(pNode, pszPath, &pChild);
if (RT_SUCCESS(rc))
return pChild;
return NULL;
}
/**
* Query a child node by a format string.
*
* @returns Pointer to the specified node.
* @returns NULL if node was not found or pNode is NULL.
* @param pNode Node pszPath is relative to.
* @param pszPathFormat Path to the child node or pNode.
* It's good style to end this with '/'.
* @param ... Arguments to pszPathFormat.
*/
VMMR3DECL(PCFGMNODE) CFGMR3GetChildF(PCFGMNODE pNode, const char *pszPathFormat, ...)
{
va_list Args;
va_start(Args, pszPathFormat);
PCFGMNODE pRet = CFGMR3GetChildFV(pNode, pszPathFormat, Args);
va_end(Args);
return pRet;
}
/**
* Query a child node by a format string.
*
* @returns Pointer to the specified node.
* @returns NULL if node was not found or pNode is NULL.
* @param pNode Node pszPath is relative to.
* @param pszPathFormat Path to the child node or pNode.
* It's good style to end this with '/'.
* @param Args Arguments to pszPathFormat.
*/
VMMR3DECL(PCFGMNODE) CFGMR3GetChildFV(PCFGMNODE pNode, const char *pszPathFormat, va_list Args)
{
char *pszPath;
RTStrAPrintfV(&pszPath, pszPathFormat, Args);
if (pszPath)
{
PCFGMNODE pChild;
int rc = cfgmR3ResolveNode(pNode, pszPath, &pChild);
RTStrFree(pszPath);
if (RT_SUCCESS(rc))
return pChild;
}
return NULL;
}
/**
* Gets the first child node.
* Use this to start an enumeration of child nodes.
*
* @returns Pointer to the first child.
* @returns NULL if no children.
* @param pNode Node to enumerate children for.
*/
VMMR3DECL(PCFGMNODE) CFGMR3GetFirstChild(PCFGMNODE pNode)
{
return pNode ? pNode->pFirstChild : NULL;
}
/**
* Gets the next sibling node.
* Use this to continue an enumeration.
*
* @returns Pointer to the first child.
* @returns NULL if no children.
* @param pCur Node to returned by a call to CFGMR3GetFirstChild()
* or successive calls to this function.
*/
VMMR3DECL(PCFGMNODE) CFGMR3GetNextChild(PCFGMNODE pCur)
{
return pCur ? pCur->pNext : NULL;
}
/**
* Gets the name of the current node.
* (Needed for enumeration.)
*
* @returns VBox status code.
* @param pCur Node to returned by a call to CFGMR3GetFirstChild()
* or successive calls to CFGMR3GetNextChild().
* @param pszName Where to store the node name.
* @param cchName Size of the buffer pointed to by pszName (with terminator).
*/
VMMR3DECL(int) CFGMR3GetName(PCFGMNODE pCur, char *pszName, size_t cchName)
{
int rc;
if (pCur)
{
if (cchName > pCur->cchName)
{
rc = VINF_SUCCESS;
memcpy(pszName, pCur->szName, pCur->cchName + 1);
}
else
rc = VERR_CFGM_NOT_ENOUGH_SPACE;
}
else
rc = VERR_CFGM_NO_NODE;
return rc;
}
/**
* Gets the length of the current node's name.
* (Needed for enumeration.)
*
* @returns Node name length in bytes including the terminating null char.
* @returns 0 if pCur is NULL.
* @param pCur Node to returned by a call to CFGMR3GetFirstChild()
* or successive calls to CFGMR3GetNextChild().
*/
VMMR3DECL(size_t) CFGMR3GetNameLen(PCFGMNODE pCur)
{
return pCur ? pCur->cchName + 1 : 0;
}
/**
* Validates that the child nodes are within a set of valid names.
*
* @returns true if all names are found in pszzAllowed.
* @returns false if not.
* @param pNode The node which children should be examined.
* @param pszzValid List of valid names separated by '\\0' and ending with
* a double '\\0'.
*
* @deprecated Use CFGMR3ValidateConfig.
*/
VMMR3DECL(bool) CFGMR3AreChildrenValid(PCFGMNODE pNode, const char *pszzValid)
{
if (pNode)
{
for (PCFGMNODE pChild = pNode->pFirstChild; pChild; pChild = pChild->pNext)
{
/* search pszzValid for the name */
const char *psz = pszzValid;
while (*psz)
{
size_t cch = strlen(psz);
if ( cch == pChild->cchName
&& !memcmp(psz, pChild->szName, cch))
break;
/* next */
psz += cch + 1;
}
/* if at end of pszzValid we didn't find it => failure */
if (!*psz)
{
AssertMsgFailed(("Couldn't find '%s' in the valid values\n", pChild->szName));
return false;
}
}
}
/* all ok. */
return true;
}
/**
* Gets the first value of a node.
* Use this to start an enumeration of values.
*
* @returns Pointer to the first value.
* @param pCur The node (Key) which values to enumerate.
*/
VMMR3DECL(PCFGMLEAF) CFGMR3GetFirstValue(PCFGMNODE pCur)
{
return pCur ? pCur->pFirstLeaf : NULL;
}
/**
* Gets the next value in enumeration.
*
* @returns Pointer to the next value.
* @param pCur The current value as returned by this function or CFGMR3GetFirstValue().
*/
VMMR3DECL(PCFGMLEAF) CFGMR3GetNextValue(PCFGMLEAF pCur)
{
return pCur ? pCur->pNext : NULL;
}
/**
* Get the value name.
* (Needed for enumeration.)
*
* @returns VBox status code.
* @param pCur Value returned by a call to CFGMR3GetFirstValue()
* or successive calls to CFGMR3GetNextValue().
* @param pszName Where to store the value name.
* @param cchName Size of the buffer pointed to by pszName (with terminator).
*/
VMMR3DECL(int) CFGMR3GetValueName(PCFGMLEAF pCur, char *pszName, size_t cchName)
{
int rc;
if (pCur)
{
if (cchName > pCur->cchName)
{
rc = VINF_SUCCESS;
memcpy(pszName, pCur->szName, pCur->cchName + 1);
}
else
rc = VERR_CFGM_NOT_ENOUGH_SPACE;
}
else
rc = VERR_CFGM_NO_NODE;
return rc;
}
/**
* Gets the length of the current node's name.
* (Needed for enumeration.)
*
* @returns Value name length in bytes including the terminating null char.
* @returns 0 if pCur is NULL.
* @param pCur Value returned by a call to CFGMR3GetFirstValue()
* or successive calls to CFGMR3GetNextValue().
*/
VMMR3DECL(size_t) CFGMR3GetValueNameLen(PCFGMLEAF pCur)
{
return pCur ? pCur->cchName + 1 : 0;
}
/**
* Gets the value type.
* (For enumeration.)
*
* @returns VBox status code.
* @param pCur Value returned by a call to CFGMR3GetFirstValue()
* or successive calls to CFGMR3GetNextValue().
*/
VMMR3DECL(CFGMVALUETYPE) CFGMR3GetValueType(PCFGMLEAF pCur)
{
Assert(pCur);
return pCur->enmType;
}
/**
* Validates that the values are within a set of valid names.
*
* @returns true if all names are found in pszzAllowed.
* @returns false if not.
* @param pNode The node which values should be examined.
* @param pszzValid List of valid names separated by '\\0' and ending with
* a double '\\0'.
* @deprecated Use CFGMR3ValidateConfig.
*/
VMMR3DECL(bool) CFGMR3AreValuesValid(PCFGMNODE pNode, const char *pszzValid)
{
if (pNode)
{
for (PCFGMLEAF pLeaf = pNode->pFirstLeaf; pLeaf; pLeaf = pLeaf->pNext)
{
/* search pszzValid for the name */
const char *psz = pszzValid;
while (*psz)
{
size_t cch = strlen(psz);
if ( cch == pLeaf->cchName
&& !memcmp(psz, pLeaf->szName, cch))
break;
/* next */
psz += cch + 1;
}
/* if at end of pszzValid we didn't find it => failure */
if (!*psz)
{
AssertMsgFailed(("Couldn't find '%s' in the valid values\n", pLeaf->szName));
return false;
}
}
}
/* all ok. */
return true;
}
/**
* Query value type.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of an integer value.
* @param penmType Where to store the type.
*/
VMMR3DECL(int) CFGMR3QueryType(PCFGMNODE pNode, const char *pszName, PCFGMVALUETYPE penmType)
{
PCFGMLEAF pLeaf;
int rc = cfgmR3ResolveLeaf(pNode, pszName, &pLeaf);
if (RT_SUCCESS(rc))
{
if (penmType)
*penmType = pLeaf->enmType;
}
return rc;
}
/**
* Query value size.
* This works on all types of values.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of an integer value.
* @param pcb Where to store the value size.
*/
VMMR3DECL(int) CFGMR3QuerySize(PCFGMNODE pNode, const char *pszName, size_t *pcb)
{
PCFGMLEAF pLeaf;
int rc = cfgmR3ResolveLeaf(pNode, pszName, &pLeaf);
if (RT_SUCCESS(rc))
{
switch (pLeaf->enmType)
{
case CFGMVALUETYPE_INTEGER:
*pcb = sizeof(pLeaf->Value.Integer.u64);
break;
case CFGMVALUETYPE_STRING:
*pcb = pLeaf->Value.String.cb;
break;
case CFGMVALUETYPE_BYTES:
*pcb = pLeaf->Value.Bytes.cb;
break;
default:
rc = VERR_CFGM_IPE_1;
AssertMsgFailed(("Invalid value type %d\n", pLeaf->enmType));
break;
}
}
return rc;
}
/**
* Query integer value.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of an integer value.
* @param pu64 Where to store the integer value.
*/
VMMR3DECL(int) CFGMR3QueryInteger(PCFGMNODE pNode, const char *pszName, uint64_t *pu64)
{
PCFGMLEAF pLeaf;
int rc = cfgmR3ResolveLeaf(pNode, pszName, &pLeaf);
if (RT_SUCCESS(rc))
{
if (pLeaf->enmType == CFGMVALUETYPE_INTEGER)
*pu64 = pLeaf->Value.Integer.u64;
else
rc = VERR_CFGM_NOT_INTEGER;
}
return rc;
}
/**
* Query integer value with default.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of an integer value.
* @param pu64 Where to store the integer value. This is set to the default on failure.
* @param u64Def The default value. This is always set.
*/
VMMR3DECL(int) CFGMR3QueryIntegerDef(PCFGMNODE pNode, const char *pszName, uint64_t *pu64, uint64_t u64Def)
{
PCFGMLEAF pLeaf;
int rc = cfgmR3ResolveLeaf(pNode, pszName, &pLeaf);
if (RT_SUCCESS(rc))
{
if (pLeaf->enmType == CFGMVALUETYPE_INTEGER)
*pu64 = pLeaf->Value.Integer.u64;
else
rc = VERR_CFGM_NOT_INTEGER;
}
if (RT_FAILURE(rc))
{
*pu64 = u64Def;
if (rc == VERR_CFGM_VALUE_NOT_FOUND || rc == VERR_CFGM_NO_PARENT)
rc = VINF_SUCCESS;
}
return rc;
}
/**
* Query zero terminated character value.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of a zero terminate character value.
* @param pszString Where to store the string.
* @param cchString Size of the string buffer. (Includes terminator.)
*/
VMMR3DECL(int) CFGMR3QueryString(PCFGMNODE pNode, const char *pszName, char *pszString, size_t cchString)
{
PCFGMLEAF pLeaf;
int rc = cfgmR3ResolveLeaf(pNode, pszName, &pLeaf);
if (RT_SUCCESS(rc))
{
if (pLeaf->enmType == CFGMVALUETYPE_STRING)
{
size_t cbSrc = pLeaf->Value.String.cb;
if (cchString >= cbSrc)
{
memcpy(pszString, pLeaf->Value.String.psz, cbSrc);
memset(pszString + cbSrc, 0, cchString - cbSrc);
}
else
rc = VERR_CFGM_NOT_ENOUGH_SPACE;
}
else
rc = VERR_CFGM_NOT_STRING;
}
return rc;
}
/**
* Query zero terminated character value with default.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of a zero terminate character value.
* @param pszString Where to store the string. This will not be set on overflow error.
* @param cchString Size of the string buffer. (Includes terminator.)
* @param pszDef The default value.
*/
VMMR3DECL(int) CFGMR3QueryStringDef(PCFGMNODE pNode, const char *pszName, char *pszString, size_t cchString, const char *pszDef)
{
PCFGMLEAF pLeaf;
int rc = cfgmR3ResolveLeaf(pNode, pszName, &pLeaf);
if (RT_SUCCESS(rc))
{
if (pLeaf->enmType == CFGMVALUETYPE_STRING)
{
size_t cbSrc = pLeaf->Value.String.cb;
if (cchString >= cbSrc)
{
memcpy(pszString, pLeaf->Value.String.psz, cbSrc);
memset(pszString + cbSrc, 0, cchString - cbSrc);
}
else
rc = VERR_CFGM_NOT_ENOUGH_SPACE;
}
else
rc = VERR_CFGM_NOT_STRING;
}
if (RT_FAILURE(rc) && rc != VERR_CFGM_NOT_ENOUGH_SPACE)
{
size_t cchDef = strlen(pszDef);
if (cchString > cchDef)
{
memcpy(pszString, pszDef, cchDef);
memset(pszString + cchDef, 0, cchString - cchDef);
if (rc == VERR_CFGM_VALUE_NOT_FOUND || rc == VERR_CFGM_NO_PARENT)
rc = VINF_SUCCESS;
}
else if (rc == VERR_CFGM_VALUE_NOT_FOUND || rc == VERR_CFGM_NO_PARENT)
rc = VERR_CFGM_NOT_ENOUGH_SPACE;
}
return rc;
}
/**
* Query byte string value.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of a byte string value.
* @param pvData Where to store the binary data.
* @param cbData Size of buffer pvData points too.
*/
VMMR3DECL(int) CFGMR3QueryBytes(PCFGMNODE pNode, const char *pszName, void *pvData, size_t cbData)
{
PCFGMLEAF pLeaf;
int rc = cfgmR3ResolveLeaf(pNode, pszName, &pLeaf);
if (RT_SUCCESS(rc))
{
if (pLeaf->enmType == CFGMVALUETYPE_BYTES)
{
if (cbData >= pLeaf->Value.Bytes.cb)
{
memcpy(pvData, pLeaf->Value.Bytes.pau8, pLeaf->Value.Bytes.cb);
memset((char *)pvData + pLeaf->Value.Bytes.cb, 0, cbData - pLeaf->Value.Bytes.cb);
}
else
rc = VERR_CFGM_NOT_ENOUGH_SPACE;
}
else
rc = VERR_CFGM_NOT_BYTES;
}
return rc;
}
/**
* Validate one level of a configuration node.
*
* This replaces the CFGMR3AreChildrenValid and CFGMR3AreValuesValid APIs.
*
* @returns VBox status code.
*
* When an error is returned, both VMSetError and AssertLogRelMsgFailed
* have been called. So, all the caller needs to do is to propagate
* the error status up to PDM.
*
* @param pNode The node to validate.
* @param pszNode The node path, always ends with a slash. Use
* "/" for the root config node.
* @param pszValidValues Patterns describing the valid value names. See
* RTStrSimplePatternMultiMatch for details on the
* pattern syntax.
* @param pszValidNodes Patterns describing the valid node (key) names.
* See RTStrSimplePatternMultiMatch for details on
* the pattern syntax.
* @param pszWho Who is calling.
* @param uInstance The instance number of the caller.
*/
VMMR3DECL(int) CFGMR3ValidateConfig(PCFGMNODE pNode, const char *pszNode,
const char *pszValidValues, const char *pszValidNodes,
const char *pszWho, uint32_t uInstance)
{
/* Input validation. */
AssertPtrNullReturn(pNode, VERR_INVALID_POINTER);
AssertPtrReturn(pszNode, VERR_INVALID_POINTER);
Assert(*pszNode && pszNode[strlen(pszNode) - 1] == '/');
AssertPtrReturn(pszValidValues, VERR_INVALID_POINTER);
AssertPtrReturn(pszValidNodes, VERR_INVALID_POINTER);
AssertPtrReturn(pszWho, VERR_INVALID_POINTER);
if (pNode)
{
/*
* Enumerate the leafs and check them against pszValidValues.
*/
for (PCFGMLEAF pLeaf = pNode->pFirstLeaf; pLeaf; pLeaf = pLeaf->pNext)
{
if (!RTStrSimplePatternMultiMatch(pszValidValues, RTSTR_MAX,
pLeaf->szName, pLeaf->cchName,
NULL))
{
AssertLogRelMsgFailed(("%s/%u: Value '%s/%s' didn't match '%s'\n",
pszWho, uInstance, pszNode, pLeaf->szName, pszValidValues));
return VMSetError(pNode->pVM, VERR_CFGM_CONFIG_UNKNOWN_VALUE, RT_SRC_POS,
N_("Unknown configuration value '%s/%s' found in the configuration of %s instance #%u"),
pszNode, pLeaf->szName, pszWho, uInstance);
}
}
/*
* Enumerate the child nodes and check them against pszValidNodes.
*/
for (PCFGMNODE pChild = pNode->pFirstChild; pChild; pChild = pChild->pNext)
{
if (!RTStrSimplePatternMultiMatch(pszValidNodes, RTSTR_MAX,
pChild->szName, pChild->cchName,
NULL))
{
AssertLogRelMsgFailed(("%s/%u: Node '%s/%s' didn't match '%s'\n",
pszWho, uInstance, pszNode, pChild->szName, pszValidNodes));
return VMSetError(pNode->pVM, VERR_CFGM_CONFIG_UNKNOWN_NODE, RT_SRC_POS,
N_("Unknown configuration node '%s/%s' found in the configuration of %s instance #%u"),
pszNode, pChild->szName, pszWho, uInstance);
}
}
}
/* All is well. */
return VINF_SUCCESS;
}
/**
* Populates the CFGM tree with the default configuration.
*
* This assumes an empty tree and is intended for testcases and such that only
* need to do very small adjustments to the config.
*
* @returns VBox status code.
* @param pVM VM handle.
*/
VMMR3DECL(int) CFGMR3ConstructDefaultTree(PVM pVM)
{
int rc;
int rcAll = VINF_SUCCESS;
#define UPDATERC() do { if (RT_FAILURE(rc) && RT_SUCCESS(rcAll)) rcAll = rc; } while (0)
PCFGMNODE pRoot = CFGMR3GetRoot(pVM);
AssertReturn(pRoot, VERR_WRONG_ORDER);
/*
* Create VM default values.
*/
rc = CFGMR3InsertString(pRoot, "Name", "Default VM");
UPDATERC();
rc = CFGMR3InsertInteger(pRoot, "RamSize", 128U * _1M);
UPDATERC();
rc = CFGMR3InsertInteger(pRoot, "RamHoleSize", 512U * _1M);
UPDATERC();
rc = CFGMR3InsertInteger(pRoot, "TimerMillies", 10);
UPDATERC();
rc = CFGMR3InsertInteger(pRoot, "RawR3Enabled", 1);
UPDATERC();
/** @todo CFGM Defaults: RawR0, PATMEnabled and CASMEnabled needs attention later. */
rc = CFGMR3InsertInteger(pRoot, "RawR0Enabled", 1);
UPDATERC();
rc = CFGMR3InsertInteger(pRoot, "PATMEnabled", 1);
UPDATERC();
rc = CFGMR3InsertInteger(pRoot, "CSAMEnabled", 1);
UPDATERC();
/*
* PDM.
*/
PCFGMNODE pPdm;
rc = CFGMR3InsertNode(pRoot, "PDM", &pPdm);
UPDATERC();
PCFGMNODE pDevices = NULL;
rc = CFGMR3InsertNode(pPdm, "Devices", &pDevices);
UPDATERC();
rc = CFGMR3InsertInteger(pDevices, "LoadBuiltin", 1); /* boolean */
UPDATERC();
PCFGMNODE pDrivers = NULL;
rc = CFGMR3InsertNode(pPdm, "Drivers", &pDrivers);
UPDATERC();
rc = CFGMR3InsertInteger(pDrivers, "LoadBuiltin", 1); /* boolean */
UPDATERC();
/*
* Devices
*/
pDevices = NULL;
rc = CFGMR3InsertNode(pRoot, "Devices", &pDevices);
UPDATERC();
/* device */
PCFGMNODE pDev = NULL;
PCFGMNODE pInst = NULL;
PCFGMNODE pCfg = NULL;
#if 0
PCFGMNODE pLunL0 = NULL;
PCFGMNODE pLunL1 = NULL;
#endif
/*
* PC Arch.
*/
rc = CFGMR3InsertNode(pDevices, "pcarch", &pDev);
UPDATERC();
rc = CFGMR3InsertNode(pDev, "0", &pInst);
UPDATERC();
rc = CFGMR3InsertInteger(pInst, "Trusted", 1); /* boolean */
UPDATERC();
rc = CFGMR3InsertNode(pInst, "Config", &pCfg);
UPDATERC();
/*
* PC Bios.
*/
rc = CFGMR3InsertNode(pDevices, "pcbios", &pDev);
UPDATERC();
rc = CFGMR3InsertNode(pDev, "0", &pInst);
UPDATERC();
rc = CFGMR3InsertInteger(pInst, "Trusted", 1); /* boolean */
UPDATERC();
rc = CFGMR3InsertNode(pInst, "Config", &pCfg);
UPDATERC();
rc = CFGMR3InsertInteger(pCfg, "RamSize", 128U * _1M);
UPDATERC();
rc = CFGMR3InsertInteger(pCfg, "RamHoleSize", 512U * _1M);
UPDATERC();
rc = CFGMR3InsertString(pCfg, "BootDevice0", "IDE");
UPDATERC();
rc = CFGMR3InsertString(pCfg, "BootDevice1", "NONE");
UPDATERC();
rc = CFGMR3InsertString(pCfg, "BootDevice2", "NONE");
UPDATERC();
rc = CFGMR3InsertString(pCfg, "BootDevice3", "NONE");
UPDATERC();
rc = CFGMR3InsertString(pCfg, "HardDiskDevice", "piix3ide");
UPDATERC();
rc = CFGMR3InsertString(pCfg, "FloppyDevice", "");
UPDATERC();
RTUUID Uuid;
RTUuidClear(&Uuid);
rc = CFGMR3InsertBytes(pCfg, "UUID", &Uuid, sizeof(Uuid));
UPDATERC();
/*
* PCI bus.
*/
rc = CFGMR3InsertNode(pDevices, "pci", &pDev); /* piix3 */
UPDATERC();
rc = CFGMR3InsertNode(pDev, "0", &pInst);
UPDATERC();
rc = CFGMR3InsertInteger(pInst, "Trusted", 1); /* boolean */
UPDATERC();
rc = CFGMR3InsertNode(pInst, "Config", &pCfg);
UPDATERC();
/*
* PS/2 keyboard & mouse
*/
rc = CFGMR3InsertNode(pDevices, "pckbd", &pDev);
UPDATERC();
rc = CFGMR3InsertNode(pDev, "0", &pInst);
UPDATERC();
rc = CFGMR3InsertNode(pInst, "Config", &pCfg);
UPDATERC();
#if 0
rc = CFGMR3InsertNode(pInst, "LUN#0", &pLunL0);
UPDATERC();
rc = CFGMR3InsertString(pLunL0, "Driver", "KeyboardQueue");
UPDATERC();
rc = CFGMR3InsertNode(pLunL0, "Config", &pCfg);
UPDATERC();
rc = CFGMR3InsertInteger(pCfg, "QueueSize", 64);
UPDATERC();
rc = CFGMR3InsertNode(pLunL0, "AttachedDriver", &pLunL1);
UPDATERC();
rc = CFGMR3InsertString(pLunL1, "Driver", "MainKeyboard");
UPDATERC();
rc = CFGMR3InsertNode(pLunL1, "Config", &pCfg);
UPDATERC();
#endif
#if 0
rc = CFGMR3InsertNode(pInst, "LUN#1", &pLunL0);
UPDATERC();
rc = CFGMR3InsertString(pLunL0, "Driver", "MouseQueue");
UPDATERC();
rc = CFGMR3InsertNode(pLunL0, "Config", &pCfg);
UPDATERC();
rc = CFGMR3InsertInteger(pCfg, "QueueSize", 128);
UPDATERC();
rc = CFGMR3InsertNode(pLunL0, "AttachedDriver", &pLunL1);
UPDATERC();
rc = CFGMR3InsertString(pLunL1, "Driver", "MainMouse");
UPDATERC();
rc = CFGMR3InsertNode(pLunL1, "Config", &pCfg);
UPDATERC();
#endif
/*
* i8254 Programmable Interval Timer And Dummy Speaker
*/
rc = CFGMR3InsertNode(pDevices, "i8254", &pDev);
UPDATERC();
rc = CFGMR3InsertNode(pDev, "0", &pInst);
UPDATERC();
#ifdef DEBUG
rc = CFGMR3InsertInteger(pInst, "Trusted", 1); /* boolean */
UPDATERC();
#endif
rc = CFGMR3InsertNode(pInst, "Config", &pCfg);
UPDATERC();
/*
* i8259 Programmable Interrupt Controller.
*/
rc = CFGMR3InsertNode(pDevices, "i8259", &pDev);
UPDATERC();
rc = CFGMR3InsertNode(pDev, "0", &pInst);
UPDATERC();
rc = CFGMR3InsertInteger(pInst, "Trusted", 1); /* boolean */
UPDATERC();
rc = CFGMR3InsertNode(pInst, "Config", &pCfg);
UPDATERC();
/*
* RTC MC146818.
*/
rc = CFGMR3InsertNode(pDevices, "mc146818", &pDev);
UPDATERC();
rc = CFGMR3InsertNode(pDev, "0", &pInst);
UPDATERC();
rc = CFGMR3InsertNode(pInst, "Config", &pCfg);
UPDATERC();
/*
* VGA.
*/
rc = CFGMR3InsertNode(pDevices, "vga", &pDev);
UPDATERC();
rc = CFGMR3InsertNode(pDev, "0", &pInst);
UPDATERC();
rc = CFGMR3InsertInteger(pInst, "Trusted", 1); /* boolean */
UPDATERC();
rc = CFGMR3InsertNode(pInst, "Config", &pCfg);
UPDATERC();
rc = CFGMR3InsertInteger(pCfg, "VRamSize", 4 * _1M);
UPDATERC();
/* Bios logo. */
rc = CFGMR3InsertInteger(pCfg, "FadeIn", 1);
UPDATERC();
rc = CFGMR3InsertInteger(pCfg, "FadeOut", 1);
UPDATERC();
rc = CFGMR3InsertInteger(pCfg, "LogoTime", 0);
UPDATERC();
rc = CFGMR3InsertString(pCfg, "LogoFile", "");
UPDATERC();
#if 0
rc = CFGMR3InsertNode(pInst, "LUN#0", &pLunL0);
UPDATERC();
rc = CFGMR3InsertString(pLunL0, "Driver", "MainDisplay");
UPDATERC();
#endif
/*
* IDE controller.
*/
rc = CFGMR3InsertNode(pDevices, "piix3ide", &pDev); /* piix3 */
UPDATERC();
rc = CFGMR3InsertNode(pDev, "0", &pInst);
UPDATERC();
rc = CFGMR3InsertInteger(pInst, "Trusted", 1); /* boolean */
UPDATERC();
rc = CFGMR3InsertNode(pInst, "Config", &pCfg);
UPDATERC();
/*
* ...
*/
#undef UPDATERC
return rcAll;
}
/**
* Resolves a path reference to a child node.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszPath Path to the child node.
* @param ppChild Where to store the pointer to the child node.
*/
static int cfgmR3ResolveNode(PCFGMNODE pNode, const char *pszPath, PCFGMNODE *ppChild)
{
*ppChild = NULL;
if (!pNode)
return VERR_CFGM_NO_PARENT;
PCFGMNODE pChild = NULL;
for (;;)
{
/* skip leading slashes. */
while (*pszPath == '/')
pszPath++;
/* End of path? */
if (!*pszPath)
{
if (!pChild)
return VERR_CFGM_INVALID_CHILD_PATH;
*ppChild = pChild;
return VINF_SUCCESS;
}
/* find end of component. */
const char *pszNext = strchr(pszPath, '/');
if (!pszNext)
pszNext = strchr(pszPath, '\0');
RTUINT cchName = pszNext - pszPath;
/* search child list. */
pChild = pNode->pFirstChild;
for ( ; pChild; pChild = pChild->pNext)
if (pChild->cchName == cchName)
{
int iDiff = memcmp(pszPath, pChild->szName, cchName);
if (iDiff <= 0)
{
if (iDiff != 0)
pChild = NULL;
break;
}
}
if (!pChild)
return VERR_CFGM_CHILD_NOT_FOUND;
/* next iteration */
pNode = pChild;
pszPath = pszNext;
}
/* won't get here */
}
/**
* Resolves a path reference to a child node.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of a byte string value.
* @param ppLeaf Where to store the pointer to the leaf node.
*/
static int cfgmR3ResolveLeaf(PCFGMNODE pNode, const char *pszName, PCFGMLEAF *ppLeaf)
{
*ppLeaf = NULL;
if (!pNode)
return VERR_CFGM_NO_PARENT;
size_t cchName = strlen(pszName);
PCFGMLEAF pLeaf = pNode->pFirstLeaf;
while (pLeaf)
{
if (cchName == pLeaf->cchName)
{
int iDiff = memcmp(pszName, pLeaf->szName, cchName);
if (iDiff <= 0)
{
if (iDiff != 0)
break;
*ppLeaf = pLeaf;
return VINF_SUCCESS;
}
}
/* next */
pLeaf = pLeaf->pNext;
}
return VERR_CFGM_VALUE_NOT_FOUND;
}
/**
* Creates a CFGM tree.
*
* This is intended for creating device/driver configs can be
* passed around and later attached to the main tree in the
* correct location.
*
* @returns Pointer to the root node.
* @param pVM The VM handle.
*/
VMMR3DECL(PCFGMNODE) CFGMR3CreateTree(PVM pVM)
{
PCFGMNODE pNew = (PCFGMNODE)MMR3HeapAlloc(pVM, MM_TAG_CFGM, sizeof(*pNew));
if (pNew)
{
pNew->pPrev = NULL;
pNew->pNext = NULL;
pNew->pParent = NULL;
pNew->pFirstChild = NULL;
pNew->pFirstLeaf = NULL;
pNew->pVM = pVM;
pNew->fRestrictedRoot = false;
pNew->cchName = 0;
pNew->szName[0] = 0;
}
return pNew;
}
/**
* Duplicates a CFGM sub-tree or a full tree.
*
* @returns Pointer to the root node. NULL if we run out of memory or the
* input parameter is NULL.
* @param pRoot The root of the tree to duplicate.
* @param ppCopy Where to return the root of the duplicate.
*/
VMMR3DECL(int) CFGMR3DuplicateSubTree(PCFGMNODE pRoot, PCFGMNODE *ppCopy)
{
AssertPtrReturn(pRoot, VERR_INVALID_POINTER);
/*
* Create a new tree.
*/
PCFGMNODE pNewRoot = CFGMR3CreateTree(pRoot->pVM);
if (!pNewRoot)
return VERR_NO_MEMORY;
/*
* Duplicate the content.
*/
int rc = VINF_SUCCESS;
PCFGMNODE pSrcCur = pRoot;
PCFGMNODE pDstCur = pNewRoot;
for (;;)
{
if ( !pDstCur->pFirstChild
&& !pDstCur->pFirstLeaf)
{
/*
* Values first.
*/
/** @todo this isn't the most efficient way to do it. */
for (PCFGMLEAF pLeaf = pSrcCur->pFirstLeaf; pLeaf && RT_SUCCESS(rc); pLeaf = pLeaf->pNext)
rc = CFGMR3InsertValue(pDstCur, pLeaf);
/*
* Insert immediate child nodes.
*/
/** @todo this isn't the most efficient way to do it. */
for (PCFGMNODE pChild = pSrcCur->pFirstChild; pChild && RT_SUCCESS(rc); pChild = pChild->pNext)
rc = CFGMR3InsertNode(pDstCur, pChild->szName, NULL);
AssertLogRelRCBreak(rc);
}
/*
* Deep copy of the children.
*/
if (pSrcCur->pFirstChild)
{
Assert(pDstCur->pFirstChild && !strcmp(pDstCur->pFirstChild->szName, pSrcCur->pFirstChild->szName));
pSrcCur = pSrcCur->pFirstChild;
pDstCur = pDstCur->pFirstChild;
}
/*
* If it's the root node, we're done.
*/
else if (pSrcCur == pRoot)
break;
else
{
/*
* Upon reaching the end of a sibling list, we must ascend and
* resume the sibiling walk on an previous level.
*/
if (!pSrcCur->pNext)
{
do
{
pSrcCur = pSrcCur->pParent;
pDstCur = pDstCur->pParent;
} while (!pSrcCur->pNext && pSrcCur != pRoot);
if (pSrcCur == pRoot)
break;
}
/*
* Next sibling.
*/
Assert(pDstCur->pNext && !strcmp(pDstCur->pNext->szName, pSrcCur->pNext->szName));
pSrcCur = pSrcCur->pNext;
pDstCur = pDstCur->pNext;
}
}
if (RT_FAILURE(rc))
{
CFGMR3RemoveNode(pNewRoot);
return rc;
}
*ppCopy = pNewRoot;
return VINF_SUCCESS;
}
/**
* Insert subtree.
*
* This function inserts (no duplication) a tree created by CFGMR3CreateTree()
* into the main tree.
*
* The root node of the inserted subtree will need to be reallocated, which
* effectually means that the passed in pSubTree handle becomes invalid
* upon successful return. Use the value returned in ppChild instead
* of pSubTree.
*
* @returns VBox status code.
* @returns VERR_CFGM_NODE_EXISTS if the final child node name component exists.
* @param pNode Parent node.
* @param pszName Name or path of the new child node.
* @param pSubTree The subtree to insert. Must be returned by CFGMR3CreateTree().
* @param ppChild Where to store the address of the new child node. (optional)
*/
VMMR3DECL(int) CFGMR3InsertSubTree(PCFGMNODE pNode, const char *pszName, PCFGMNODE pSubTree, PCFGMNODE *ppChild)
{
/*
* Validate input.
*/
AssertPtrReturn(pNode, VERR_INVALID_POINTER);
AssertPtrReturn(pSubTree, VERR_INVALID_POINTER);
AssertReturn(pNode != pSubTree, VERR_INVALID_PARAMETER);
AssertReturn(!pSubTree->pParent, VERR_INVALID_PARAMETER);
AssertReturn(pSubTree->pVM, VERR_INVALID_PARAMETER);
Assert(!pSubTree->pNext);
Assert(!pSubTree->pPrev);
/*
* Use CFGMR3InsertNode to create a new node and then
* re-attach the children and leafs of the subtree to it.
*/
PCFGMNODE pNewChild;
int rc = CFGMR3InsertNode(pNode, pszName, &pNewChild);
if (RT_SUCCESS(rc))
{
Assert(!pNewChild->pFirstChild);
Assert(!pNewChild->pFirstLeaf);
pNewChild->pFirstChild = pSubTree->pFirstChild;
pNewChild->pFirstLeaf = pSubTree->pFirstLeaf;
for (PCFGMNODE pChild = pNewChild->pFirstChild; pChild; pChild = pChild->pNext)
pChild->pParent = pNewChild;
if (ppChild)
*ppChild = pNewChild;
/* free the old subtree root */
pSubTree->pVM = NULL;
pSubTree->pFirstLeaf = NULL;
pSubTree->pFirstChild = NULL;
MMR3HeapFree(pSubTree);
}
return rc;
}
/**
* Replaces a (sub-)tree with new one.
*
* This function removes the exiting (sub-)tree, completely freeing it in the
* process, and inserts (no duplication) the specified tree. The tree can
* either be created by CFGMR3CreateTree or CFGMR3DuplicateSubTree.
*
* @returns VBox status code.
* @param pRoot The sub-tree to replace. This node will remain valid
* after the call.
* @param pNewRoot The tree to replace @a pRoot with. This not will
* become invalid after a successful call.
*/
VMMR3DECL(int) CFGMR3ReplaceSubTree(PCFGMNODE pRoot, PCFGMNODE pNewRoot)
{
/*
* Validate input.
*/
AssertPtrReturn(pRoot, VERR_INVALID_POINTER);
AssertPtrReturn(pNewRoot, VERR_INVALID_POINTER);
AssertReturn(pRoot != pNewRoot, VERR_INVALID_PARAMETER);
AssertReturn(!pNewRoot->pParent, VERR_INVALID_PARAMETER);
AssertReturn(pNewRoot->pVM, VERR_INVALID_PARAMETER);
AssertReturn(pNewRoot->pVM == pRoot->pVM, VERR_INVALID_PARAMETER);
AssertReturn(!pNewRoot->pNext, VERR_INVALID_PARAMETER);
AssertReturn(!pNewRoot->pPrev, VERR_INVALID_PARAMETER);
/*
* Free the current properties fo pRoot.
*/
while (pRoot->pFirstChild)
CFGMR3RemoveNode(pRoot->pFirstChild);
while (pRoot->pFirstLeaf)
cfgmR3RemoveLeaf(pRoot, pRoot->pFirstLeaf);
/*
* Copy all the properties from the new root to the current one.
*/
pRoot->pFirstLeaf = pNewRoot->pFirstLeaf;
pRoot->pFirstChild = pNewRoot->pFirstChild;
for (PCFGMNODE pChild = pRoot->pFirstChild; pChild; pChild = pChild->pNext)
pChild->pParent = pRoot;
pNewRoot->pFirstLeaf = NULL;
pNewRoot->pFirstChild = NULL;
pNewRoot->pVM = NULL;
MMR3HeapFree(pNewRoot);
return VINF_SUCCESS;
}
/**
* Copies all values and keys from one tree onto another.
*
* The flags control what happens to keys and values with the same name
* existing in both source and destination.
*
* @returns VBox status code.
* @param pDstTree The destination tree.
* @param pSrcTree The source tree.
* @param fFlags Copy flags, see CFGM_COPY_FLAGS_XXX.
*/
VMMR3DECL(int) CFGMR3CopyTree(PCFGMNODE pDstTree, PCFGMNODE pSrcTree, uint32_t fFlags)
{
/*
* Input validation.
*/
AssertPtrReturn(pSrcTree, VERR_INVALID_POINTER);
AssertPtrReturn(pDstTree, VERR_INVALID_POINTER);
AssertReturn(pDstTree != pSrcTree, VERR_INVALID_PARAMETER);
AssertReturn(!(fFlags & ~(CFGM_COPY_FLAGS_VALUE_DISP_MASK | CFGM_COPY_FLAGS_KEY_DISP_MASK)), VERR_INVALID_PARAMETER);
AssertReturn( (fFlags & CFGM_COPY_FLAGS_VALUE_DISP_MASK) != CFGM_COPY_FLAGS_RESERVED_VALUE_DISP_0
&& (fFlags & CFGM_COPY_FLAGS_VALUE_DISP_MASK) != CFGM_COPY_FLAGS_RESERVED_VALUE_DISP_1,
VERR_INVALID_PARAMETER);
AssertReturn((fFlags & CFGM_COPY_FLAGS_KEY_DISP_MASK) != CFGM_COPY_FLAGS_RESERVED_KEY_DISP,
VERR_INVALID_PARAMETER);
/*
* Copy the values.
*/
int rc;
for (PCFGMLEAF pValue = CFGMR3GetFirstValue(pSrcTree); pValue; pValue = CFGMR3GetNextValue(pValue))
{
rc = CFGMR3InsertValue(pDstTree, pValue);
if (rc == VERR_CFGM_LEAF_EXISTS)
{
if ((fFlags & CFGM_COPY_FLAGS_VALUE_DISP_MASK) == CFGM_COPY_FLAGS_REPLACE_VALUES)
{
rc = CFGMR3RemoveValue(pDstTree, pValue->szName);
if (RT_FAILURE(rc))
break;
rc = CFGMR3InsertValue(pDstTree, pValue);
}
else
rc = VINF_SUCCESS;
}
AssertRCReturn(rc, rc);
}
/*
* Copy/merge the keys - merging results in recursion.
*/
for (PCFGMNODE pSrcChild = CFGMR3GetFirstChild(pSrcTree); pSrcChild; pSrcChild = CFGMR3GetNextChild(pSrcChild))
{
PCFGMNODE pDstChild = CFGMR3GetChild(pDstTree, pSrcChild->szName);
if ( pDstChild
&& (fFlags & CFGM_COPY_FLAGS_KEY_DISP_MASK) == CFGM_COPY_FLAGS_REPLACE_KEYS)
{
CFGMR3RemoveNode(pDstChild);
pDstChild = NULL;
}
if (!pDstChild)
{
PCFGMNODE pChildCopy;
rc = CFGMR3DuplicateSubTree(pSrcChild, &pChildCopy);
AssertRCReturn(rc, rc);
rc = CFGMR3InsertSubTree(pDstTree, pSrcChild->szName, pChildCopy, NULL);
AssertRCReturnStmt(rc, CFGMR3RemoveNode(pChildCopy), rc);
}
else if ((fFlags & CFGM_COPY_FLAGS_KEY_DISP_MASK) == CFGM_COPY_FLAGS_MERGE_KEYS)
{
rc = CFGMR3CopyTree(pDstChild, pSrcChild, fFlags);
AssertRCReturn(rc, rc);
}
}
return VINF_SUCCESS;
}
/**
* Compares two names.
*
* @returns Similar to memcpy.
* @param pszName1 The first name.
* @param cchName1 The length of the first name.
* @param pszName2 The second name.
* @param cchName2 The length of the second name.
*/
DECLINLINE(int) cfgmR3CompareNames(const char *pszName1, size_t cchName1, const char *pszName2, size_t cchName2)
{
int iDiff;
if (cchName1 <= cchName2)
{
iDiff = memcmp(pszName1, pszName2, cchName1);
if (!iDiff && cchName1 < cchName2)
iDiff = -1;
}
else
{
iDiff = memcmp(pszName1, pszName2, cchName2);
if (!iDiff)
iDiff = 1;
}
return iDiff;
}
/**
* Insert a node.
*
* @returns VBox status code.
* @returns VERR_CFGM_NODE_EXISTS if the final child node name component exists.
* @param pNode Parent node.
* @param pszName Name or path of the new child node.
* @param ppChild Where to store the address of the new child node. (optional)
*/
VMMR3DECL(int) CFGMR3InsertNode(PCFGMNODE pNode, const char *pszName, PCFGMNODE *ppChild)
{
int rc;
if (pNode)
{
/*
* If given a path we have to deal with it component by component.
*/
while (*pszName == '/')
pszName++;
if (strchr(pszName, '/'))
{
char *pszDup = RTStrDup(pszName);
if (pszDup)
{
char *psz = pszDup;
for (;;)
{
/* Terminate at '/' and find the next component. */
char *pszNext = strchr(psz, '/');
if (pszNext)
{
*pszNext++ = '\0';
while (*pszNext == '/')
pszNext++;
if (*pszNext == '\0')
pszNext = NULL;
}
/* does it exist? */
PCFGMNODE pChild = CFGMR3GetChild(pNode, psz);
if (!pChild)
{
/* no, insert it */
rc = CFGMR3InsertNode(pNode, psz, &pChild);
if (RT_FAILURE(rc))
break;
if (!pszNext)
{
if (ppChild)
*ppChild = pChild;
break;
}
}
/* if last component fail */
else if (!pszNext)
{
rc = VERR_CFGM_NODE_EXISTS;
break;
}
/* next */
pNode = pChild;
psz = pszNext;
}
RTStrFree(pszDup);
}
else
rc = VERR_NO_TMP_MEMORY;
}
/*
* Not multicomponent, just make sure it's a non-zero name.
*/
else if (*pszName)
{
/*
* Check if already exists and find last node in chain.
*/
size_t cchName = strlen(pszName);
PCFGMNODE pPrev = NULL;
PCFGMNODE pNext = pNode->pFirstChild;
if (pNext)
{
for ( ; pNext; pPrev = pNext, pNext = pNext->pNext)
{
int iDiff = cfgmR3CompareNames(pszName, cchName, pNext->szName, pNext->cchName);
if (iDiff <= 0)
{
if (!iDiff)
return VERR_CFGM_NODE_EXISTS;
break;
}
}
}
/*
* Allocate and init node.
*/
PCFGMNODE pNew = (PCFGMNODE)MMR3HeapAlloc(pNode->pVM, MM_TAG_CFGM, sizeof(*pNew) + cchName);
if (pNew)
{
pNew->pParent = pNode;
pNew->pFirstChild = NULL;
pNew->pFirstLeaf = NULL;
pNew->pVM = pNode->pVM;
pNew->fRestrictedRoot = false;
pNew->cchName = cchName;
memcpy(pNew->szName, pszName, cchName + 1);
/*
* Insert into child list.
*/
pNew->pPrev = pPrev;
if (pPrev)
pPrev->pNext = pNew;
else
pNode->pFirstChild = pNew;
pNew->pNext = pNext;
if (pNext)
pNext->pPrev = pNew;
if (ppChild)
*ppChild = pNew;
rc = VINF_SUCCESS;
}
else
rc = VERR_NO_MEMORY;
}
else
{
rc = VERR_CFGM_INVALID_NODE_PATH;
AssertMsgFailed(("Invalid path %s\n", pszName));
}
}
else
{
rc = VERR_CFGM_NO_PARENT;
AssertMsgFailed(("No parent! path %s\n", pszName));
}
return rc;
}
/**
* Insert a node, format string name.
*
* @returns VBox status code.
* @param pNode Parent node.
* @param ppChild Where to store the address of the new child node. (optional)
* @param pszNameFormat Name of or path the new child node.
* @param ... Name format arguments.
*/
VMMR3DECL(int) CFGMR3InsertNodeF(PCFGMNODE pNode, PCFGMNODE *ppChild, const char *pszNameFormat, ...)
{
va_list Args;
va_start(Args, pszNameFormat);
int rc = CFGMR3InsertNodeFV(pNode, ppChild, pszNameFormat, Args);
va_end(Args);
return rc;
}
/**
* Insert a node, format string name.
*
* @returns VBox status code.
* @param pNode Parent node.
* @param ppChild Where to store the address of the new child node. (optional)
* @param pszNameFormat Name or path of the new child node.
* @param Args Name format arguments.
*/
VMMR3DECL(int) CFGMR3InsertNodeFV(PCFGMNODE pNode, PCFGMNODE *ppChild, const char *pszNameFormat, va_list Args)
{
int rc;
char *pszName;
RTStrAPrintfV(&pszName, pszNameFormat, Args);
if (pszName)
{
rc = CFGMR3InsertNode(pNode, pszName, ppChild);
RTStrFree(pszName);
}
else
rc = VERR_NO_MEMORY;
return rc;
}
/**
* Marks the node as the root of a restricted subtree, i.e. the end of
* a CFGMR3GetParent() journey.
*
* @param pNode The node to mark.
*/
VMMR3DECL(void) CFGMR3SetRestrictedRoot(PCFGMNODE pNode)
{
if (pNode)
pNode->fRestrictedRoot = true;
}
/**
* Insert a node.
*
* @returns VBox status code.
* @param pNode Parent node.
* @param pszName Name of the new child node.
* @param ppLeaf Where to store the new leaf.
* The caller must fill in the enmType and Value fields!
*/
static int cfgmR3InsertLeaf(PCFGMNODE pNode, const char *pszName, PCFGMLEAF *ppLeaf)
{
int rc;
if (*pszName)
{
if (pNode)
{
/*
* Check if already exists and find last node in chain.
*/
size_t cchName = strlen(pszName);
PCFGMLEAF pPrev = NULL;
PCFGMLEAF pNext = pNode->pFirstLeaf;
if (pNext)
{
for ( ; pNext; pPrev = pNext, pNext = pNext->pNext)
{
int iDiff = cfgmR3CompareNames(pszName, cchName, pNext->szName, pNext->cchName);
if (iDiff <= 0)
{
if (!iDiff)
return VERR_CFGM_LEAF_EXISTS;
break;
}
}
}
/*
* Allocate and init node.
*/
PCFGMLEAF pNew = (PCFGMLEAF)MMR3HeapAlloc(pNode->pVM, MM_TAG_CFGM, sizeof(*pNew) + cchName);
if (pNew)
{
pNew->cchName = cchName;
memcpy(pNew->szName, pszName, cchName + 1);
/*
* Insert into child list.
*/
pNew->pPrev = pPrev;
if (pPrev)
pPrev->pNext = pNew;
else
pNode->pFirstLeaf = pNew;
pNew->pNext = pNext;
if (pNext)
pNext->pPrev = pNew;
*ppLeaf = pNew;
rc = VINF_SUCCESS;
}
else
rc = VERR_NO_MEMORY;
}
else
rc = VERR_CFGM_NO_PARENT;
}
else
rc = VERR_CFGM_INVALID_CHILD_PATH;
return rc;
}
/**
* Remove a node.
*
* @param pNode Parent node.
*/
VMMR3DECL(void) CFGMR3RemoveNode(PCFGMNODE pNode)
{
if (pNode)
{
/*
* Free children.
*/
while (pNode->pFirstChild)
CFGMR3RemoveNode(pNode->pFirstChild);
/*
* Free leafs.
*/
while (pNode->pFirstLeaf)
cfgmR3RemoveLeaf(pNode, pNode->pFirstLeaf);
/*
* Unlink ourselves.
*/
if (pNode->pPrev)
pNode->pPrev->pNext = pNode->pNext;
else
{
if (pNode->pParent)
pNode->pParent->pFirstChild = pNode->pNext;
else if (pNode == pNode->pVM->cfgm.s.pRoot) /* might be a different tree */
pNode->pVM->cfgm.s.pRoot = NULL;
}
if (pNode->pNext)
pNode->pNext->pPrev = pNode->pPrev;
/*
* Free ourselves. (bit of paranoia first)
*/
pNode->pVM = NULL;
pNode->pNext = NULL;
pNode->pPrev = NULL;
pNode->pParent = NULL;
MMR3HeapFree(pNode);
}
}
/**
* Removes a leaf.
*
* @param pNode Parent node.
* @param pLeaf Leaf to remove.
*/
static void cfgmR3RemoveLeaf(PCFGMNODE pNode, PCFGMLEAF pLeaf)
{
if (pNode && pLeaf)
{
/*
* Unlink.
*/
if (pLeaf->pPrev)
pLeaf->pPrev->pNext = pLeaf->pNext;
else
pNode->pFirstLeaf = pLeaf->pNext;
if (pLeaf->pNext)
pLeaf->pNext->pPrev = pLeaf->pPrev;
/*
* Free value and node.
*/
cfgmR3FreeValue(pLeaf);
pLeaf->pNext = NULL;
pLeaf->pPrev = NULL;
MMR3HeapFree(pLeaf);
}
}
/**
* Frees whatever resources the leaf value is owning.
*
* Use this before assigning a new value to a leaf.
* The caller must either free the leaf or assign a new value to it.
*
* @param pLeaf Pointer to the leaf which value should be free.
*/
static void cfgmR3FreeValue(PCFGMLEAF pLeaf)
{
if (pLeaf)
{
switch (pLeaf->enmType)
{
case CFGMVALUETYPE_BYTES:
MMR3HeapFree(pLeaf->Value.Bytes.pau8);
pLeaf->Value.Bytes.pau8 = NULL;
pLeaf->Value.Bytes.cb = 0;
break;
case CFGMVALUETYPE_STRING:
MMR3HeapFree(pLeaf->Value.String.psz);
pLeaf->Value.String.psz = NULL;
pLeaf->Value.String.cb = 0;
break;
case CFGMVALUETYPE_INTEGER:
break;
}
pLeaf->enmType = (CFGMVALUETYPE)0;
}
}
/**
* Inserts a new integer value.
*
* @returns VBox status code.
* @param pNode Parent node.
* @param pszName Value name.
* @param u64Integer The value.
*/
VMMR3DECL(int) CFGMR3InsertInteger(PCFGMNODE pNode, const char *pszName, uint64_t u64Integer)
{
PCFGMLEAF pLeaf;
int rc = cfgmR3InsertLeaf(pNode, pszName, &pLeaf);
if (RT_SUCCESS(rc))
{
pLeaf->enmType = CFGMVALUETYPE_INTEGER;
pLeaf->Value.Integer.u64 = u64Integer;
}
return rc;
}
/**
* Inserts a new string value. This variant expects that the caller know the length
* of the string already so we can avoid calling strlen() here.
*
* @returns VBox status code.
* @param pNode Parent node.
* @param pszName Value name.
* @param pszString The value. Must not be NULL.
* @param cchString The length of the string excluding the
* terminator.
*/
VMMR3DECL(int) CFGMR3InsertStringN(PCFGMNODE pNode, const char *pszName, const char *pszString, size_t cchString)
{
Assert(RTStrNLen(pszString, cchString) == cchString);
int rc;
if (pNode)
{
/*
* Allocate string object first.
*/
char *pszStringCopy = (char *)MMR3HeapAlloc(pNode->pVM, MM_TAG_CFGM_STRING, cchString + 1);
if (pszStringCopy)
{
memcpy(pszStringCopy, pszString, cchString);
pszStringCopy[cchString] = '\0';
/*
* Create value leaf and set it to string type.
*/
PCFGMLEAF pLeaf;
rc = cfgmR3InsertLeaf(pNode, pszName, &pLeaf);
if (RT_SUCCESS(rc))
{
pLeaf->enmType = CFGMVALUETYPE_STRING;
pLeaf->Value.String.psz = pszStringCopy;
pLeaf->Value.String.cb = cchString + 1;
}
else
MMR3HeapFree(pszStringCopy);
}
else
rc = VERR_NO_MEMORY;
}
else
rc = VERR_CFGM_NO_PARENT;
return rc;
}
/**
* Inserts a new string value. Calls strlen(pszString) internally; if you know the
* length of the string, CFGMR3InsertStringLengthKnown() is faster.
*
* @returns VBox status code.
* @param pNode Parent node.
* @param pszName Value name.
* @param pszString The value.
*/
VMMR3DECL(int) CFGMR3InsertString(PCFGMNODE pNode, const char *pszName, const char *pszString)
{
return CFGMR3InsertStringN(pNode, pszName, pszString, strlen(pszString));
}
/**
* Same as CFGMR3InsertString except the string value given in RTStrPrintfV
* fashion.
*
* @returns VBox status code.
* @param pNode Parent node.
* @param pszName Value name.
* @param pszFormat The value given as a format string.
* @param va Argument to pszFormat.
*/
VMMR3DECL(int) CFGMR3InsertStringFV(PCFGMNODE pNode, const char *pszName, const char *pszFormat, va_list va)
{
int rc;
if (pNode)
{
/*
* Allocate string object first.
*/
char *pszString = MMR3HeapAPrintfVU(pNode->pVM->pUVM, MM_TAG_CFGM_STRING, pszFormat, va);
if (pszString)
{
/*
* Create value leaf and set it to string type.
*/
PCFGMLEAF pLeaf;
rc = cfgmR3InsertLeaf(pNode, pszName, &pLeaf);
if (RT_SUCCESS(rc))
{
pLeaf->enmType = CFGMVALUETYPE_STRING;
pLeaf->Value.String.psz = pszString;
pLeaf->Value.String.cb = strlen(pszString) + 1;
}
else
MMR3HeapFree(pszString);
}
else
rc = VERR_NO_MEMORY;
}
else
rc = VERR_CFGM_NO_PARENT;
return rc;
}
/**
* Same as CFGMR3InsertString except the string value given in RTStrPrintf
* fashion.
*
* @returns VBox status code.
* @param pNode Parent node.
* @param pszName Value name.
* @param pszFormat The value given as a format string.
* @param ... Argument to pszFormat.
*/
VMMR3DECL(int) CFGMR3InsertStringF(PCFGMNODE pNode, const char *pszName, const char *pszFormat, ...)
{
va_list va;
va_start(va, pszFormat);
int rc = CFGMR3InsertStringFV(pNode, pszName, pszFormat, va);
va_end(va);
return rc;
}
/**
* Same as CFGMR3InsertString except the string value given as a UTF-16 string.
*
* @returns VBox status code.
* @param pNode Parent node.
* @param pszName Value name.
* @param pwszValue The string value (UTF-16).
*/
VMMR3DECL(int) CFGMR3InsertStringW(PCFGMNODE pNode, const char *pszName, PCRTUTF16 pwszValue)
{
char *pszValue;
int rc = RTUtf16ToUtf8(pwszValue, &pszValue);
if (RT_SUCCESS(rc))
{
rc = CFGMR3InsertString(pNode, pszName, pszValue);
RTStrFree(pszValue);
}
return rc;
}
/**
* Inserts a new integer value.
*
* @returns VBox status code.
* @param pNode Parent node.
* @param pszName Value name.
* @param pvBytes The value.
* @param cbBytes The value size.
*/
VMMR3DECL(int) CFGMR3InsertBytes(PCFGMNODE pNode, const char *pszName, const void *pvBytes, size_t cbBytes)
{
int rc;
if (pNode)
{
if (cbBytes == (RTUINT)cbBytes)
{
/*
* Allocate string object first.
*/
void *pvCopy = MMR3HeapAlloc(pNode->pVM, MM_TAG_CFGM_STRING, cbBytes);
if (pvCopy || !cbBytes)
{
memcpy(pvCopy, pvBytes, cbBytes);
/*
* Create value leaf and set it to string type.
*/
PCFGMLEAF pLeaf;
rc = cfgmR3InsertLeaf(pNode, pszName, &pLeaf);
if (RT_SUCCESS(rc))
{
pLeaf->enmType = CFGMVALUETYPE_BYTES;
pLeaf->Value.Bytes.cb = cbBytes;
pLeaf->Value.Bytes.pau8 = (uint8_t *)pvCopy;
}
}
else
rc = VERR_NO_MEMORY;
}
else
rc = VERR_OUT_OF_RANGE;
}
else
rc = VERR_CFGM_NO_PARENT;
return rc;
}
/**
* Make a copy of the specified value under the given node.
*
* @returns VBox status code.
* @param pNode Parent node.
* @param pValue The value to copy and insert.
*/
VMMR3DECL(int) CFGMR3InsertValue(PCFGMNODE pNode, PCFGMLEAF pValue)
{
int rc;
switch (pValue->enmType)
{
case CFGMVALUETYPE_INTEGER:
rc = CFGMR3InsertInteger(pNode, pValue->szName, pValue->Value.Integer.u64);
break;
case CFGMVALUETYPE_BYTES:
rc = CFGMR3InsertBytes(pNode, pValue->szName, pValue->Value.Bytes.pau8, pValue->Value.Bytes.cb);
break;
case CFGMVALUETYPE_STRING:
rc = CFGMR3InsertStringN(pNode, pValue->szName, pValue->Value.String.psz, pValue->Value.String.cb - 1);
break;
default:
rc = VERR_CFGM_IPE_1;
AssertMsgFailed(("Invalid value type %d\n", pValue->enmType));
break;
}
return rc;
}
/**
* Remove a value.
*
* @returns VBox status code.
* @param pNode Parent node.
* @param pszName Name of the new child node.
*/
VMMR3DECL(int) CFGMR3RemoveValue(PCFGMNODE pNode, const char *pszName)
{
PCFGMLEAF pLeaf;
int rc = cfgmR3ResolveLeaf(pNode, pszName, &pLeaf);
if (RT_SUCCESS(rc))
cfgmR3RemoveLeaf(pNode, pLeaf);
return rc;
}
/*
* -+- helper apis -+-
*/
/**
* Query unsigned 64-bit integer value.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of an integer value.
* @param pu64 Where to store the integer value.
*/
VMMR3DECL(int) CFGMR3QueryU64(PCFGMNODE pNode, const char *pszName, uint64_t *pu64)
{
return CFGMR3QueryInteger(pNode, pszName, pu64);
}
/**
* Query unsigned 64-bit integer value with default.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of an integer value.
* @param pu64 Where to store the integer value. Set to default on failure.
* @param u64Def The default value.
*/
VMMR3DECL(int) CFGMR3QueryU64Def(PCFGMNODE pNode, const char *pszName, uint64_t *pu64, uint64_t u64Def)
{
return CFGMR3QueryIntegerDef(pNode, pszName, pu64, u64Def);
}
/**
* Query signed 64-bit integer value.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of an integer value.
* @param pi64 Where to store the value.
*/
VMMR3DECL(int) CFGMR3QueryS64(PCFGMNODE pNode, const char *pszName, int64_t *pi64)
{
uint64_t u64;
int rc = CFGMR3QueryInteger(pNode, pszName, &u64);
if (RT_SUCCESS(rc))
*pi64 = (int64_t)u64;
return rc;
}
/**
* Query signed 64-bit integer value with default.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of an integer value.
* @param pi64 Where to store the value. Set to default on failure.
* @param i64Def The default value.
*/
VMMR3DECL(int) CFGMR3QueryS64Def(PCFGMNODE pNode, const char *pszName, int64_t *pi64, int64_t i64Def)
{
uint64_t u64;
int rc = CFGMR3QueryIntegerDef(pNode, pszName, &u64, i64Def);
*pi64 = (int64_t)u64;
return rc;
}
/**
* Query unsigned 32-bit integer value.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of an integer value.
* @param pu32 Where to store the value.
*/
VMMR3DECL(int) CFGMR3QueryU32(PCFGMNODE pNode, const char *pszName, uint32_t *pu32)
{
uint64_t u64;
int rc = CFGMR3QueryInteger(pNode, pszName, &u64);
if (RT_SUCCESS(rc))
{
if (!(u64 & UINT64_C(0xffffffff00000000)))
*pu32 = (uint32_t)u64;
else
rc = VERR_CFGM_INTEGER_TOO_BIG;
}
return rc;
}
/**
* Query unsigned 32-bit integer value with default.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of an integer value.
* @param pu32 Where to store the value. Set to default on failure.
* @param u32Def The default value.
*/
VMMR3DECL(int) CFGMR3QueryU32Def(PCFGMNODE pNode, const char *pszName, uint32_t *pu32, uint32_t u32Def)
{
uint64_t u64;
int rc = CFGMR3QueryIntegerDef(pNode, pszName, &u64, u32Def);
if (RT_SUCCESS(rc))
{
if (!(u64 & UINT64_C(0xffffffff00000000)))
*pu32 = (uint32_t)u64;
else
rc = VERR_CFGM_INTEGER_TOO_BIG;
}
if (RT_FAILURE(rc))
*pu32 = u32Def;
return rc;
}
/**
* Query signed 32-bit integer value.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of an integer value.
* @param pi32 Where to store the value.
*/
VMMR3DECL(int) CFGMR3QueryS32(PCFGMNODE pNode, const char *pszName, int32_t *pi32)
{
uint64_t u64;
int rc = CFGMR3QueryInteger(pNode, pszName, &u64);
if (RT_SUCCESS(rc))
{
if ( !(u64 & UINT64_C(0xffffffff80000000))
|| (u64 & UINT64_C(0xffffffff80000000)) == UINT64_C(0xffffffff80000000))
*pi32 = (int32_t)u64;
else
rc = VERR_CFGM_INTEGER_TOO_BIG;
}
return rc;
}
/**
* Query signed 32-bit integer value with default.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of an integer value.
* @param pi32 Where to store the value. Set to default on failure.
* @param i32Def The default value.
*/
VMMR3DECL(int) CFGMR3QueryS32Def(PCFGMNODE pNode, const char *pszName, int32_t *pi32, int32_t i32Def)
{
uint64_t u64;
int rc = CFGMR3QueryIntegerDef(pNode, pszName, &u64, i32Def);
if (RT_SUCCESS(rc))
{
if ( !(u64 & UINT64_C(0xffffffff80000000))
|| (u64 & UINT64_C(0xffffffff80000000)) == UINT64_C(0xffffffff80000000))
*pi32 = (int32_t)u64;
else
rc = VERR_CFGM_INTEGER_TOO_BIG;
}
if (RT_FAILURE(rc))
*pi32 = i32Def;
return rc;
}
/**
* Query unsigned 16-bit integer value.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of an integer value.
* @param pu16 Where to store the value.
*/
VMMR3DECL(int) CFGMR3QueryU16(PCFGMNODE pNode, const char *pszName, uint16_t *pu16)
{
uint64_t u64;
int rc = CFGMR3QueryInteger(pNode, pszName, &u64);
if (RT_SUCCESS(rc))
{
if (!(u64 & UINT64_C(0xffffffffffff0000)))
*pu16 = (int16_t)u64;
else
rc = VERR_CFGM_INTEGER_TOO_BIG;
}
return rc;
}
/**
* Query unsigned 16-bit integer value with default.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of an integer value.
* @param pu16 Where to store the value. Set to default on failure.
* @param i16Def The default value.
*/
VMMR3DECL(int) CFGMR3QueryU16Def(PCFGMNODE pNode, const char *pszName, uint16_t *pu16, uint16_t u16Def)
{
uint64_t u64;
int rc = CFGMR3QueryIntegerDef(pNode, pszName, &u64, u16Def);
if (RT_SUCCESS(rc))
{
if (!(u64 & UINT64_C(0xffffffffffff0000)))
*pu16 = (int16_t)u64;
else
rc = VERR_CFGM_INTEGER_TOO_BIG;
}
if (RT_FAILURE(rc))
*pu16 = u16Def;
return rc;
}
/**
* Query signed 16-bit integer value.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of an integer value.
* @param pi16 Where to store the value.
*/
VMMR3DECL(int) CFGMR3QueryS16(PCFGMNODE pNode, const char *pszName, int16_t *pi16)
{
uint64_t u64;
int rc = CFGMR3QueryInteger(pNode, pszName, &u64);
if (RT_SUCCESS(rc))
{
if ( !(u64 & UINT64_C(0xffffffffffff8000))
|| (u64 & UINT64_C(0xffffffffffff8000)) == UINT64_C(0xffffffffffff8000))
*pi16 = (int16_t)u64;
else
rc = VERR_CFGM_INTEGER_TOO_BIG;
}
return rc;
}
/**
* Query signed 16-bit integer value with default.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of an integer value.
* @param pi16 Where to store the value. Set to default on failure.
* @param i16Def The default value.
*/
VMMR3DECL(int) CFGMR3QueryS16Def(PCFGMNODE pNode, const char *pszName, int16_t *pi16, int16_t i16Def)
{
uint64_t u64;
int rc = CFGMR3QueryIntegerDef(pNode, pszName, &u64, i16Def);
if (RT_SUCCESS(rc))
{
if ( !(u64 & UINT64_C(0xffffffffffff8000))
|| (u64 & UINT64_C(0xffffffffffff8000)) == UINT64_C(0xffffffffffff8000))
*pi16 = (int16_t)u64;
else
rc = VERR_CFGM_INTEGER_TOO_BIG;
}
if (RT_FAILURE(rc))
*pi16 = i16Def;
return rc;
}
/**
* Query unsigned 8-bit integer value.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of an integer value.
* @param pu8 Where to store the value.
*/
VMMR3DECL(int) CFGMR3QueryU8(PCFGMNODE pNode, const char *pszName, uint8_t *pu8)
{
uint64_t u64;
int rc = CFGMR3QueryInteger(pNode, pszName, &u64);
if (RT_SUCCESS(rc))
{
if (!(u64 & UINT64_C(0xffffffffffffff00)))
*pu8 = (uint8_t)u64;
else
rc = VERR_CFGM_INTEGER_TOO_BIG;
}
return rc;
}
/**
* Query unsigned 8-bit integer value with default.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of an integer value.
* @param pu8 Where to store the value. Set to default on failure.
* @param u8Def The default value.
*/
VMMR3DECL(int) CFGMR3QueryU8Def(PCFGMNODE pNode, const char *pszName, uint8_t *pu8, uint8_t u8Def)
{
uint64_t u64;
int rc = CFGMR3QueryIntegerDef(pNode, pszName, &u64, u8Def);
if (RT_SUCCESS(rc))
{
if (!(u64 & UINT64_C(0xffffffffffffff00)))
*pu8 = (uint8_t)u64;
else
rc = VERR_CFGM_INTEGER_TOO_BIG;
}
if (RT_FAILURE(rc))
*pu8 = u8Def;
return rc;
}
/**
* Query signed 8-bit integer value.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of an integer value.
* @param pi8 Where to store the value.
*/
VMMR3DECL(int) CFGMR3QueryS8(PCFGMNODE pNode, const char *pszName, int8_t *pi8)
{
uint64_t u64;
int rc = CFGMR3QueryInteger(pNode, pszName, &u64);
if (RT_SUCCESS(rc))
{
if ( !(u64 & UINT64_C(0xffffffffffffff80))
|| (u64 & UINT64_C(0xffffffffffffff80)) == UINT64_C(0xffffffffffffff80))
*pi8 = (int8_t)u64;
else
rc = VERR_CFGM_INTEGER_TOO_BIG;
}
return rc;
}
/**
* Query signed 8-bit integer value with default.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of an integer value.
* @param pi8 Where to store the value. Set to default on failure.
* @param i8Def The default value.
*/
VMMR3DECL(int) CFGMR3QueryS8Def(PCFGMNODE pNode, const char *pszName, int8_t *pi8, int8_t i8Def)
{
uint64_t u64;
int rc = CFGMR3QueryIntegerDef(pNode, pszName, &u64, i8Def);
if (RT_SUCCESS(rc))
{
if ( !(u64 & UINT64_C(0xffffffffffffff80))
|| (u64 & UINT64_C(0xffffffffffffff80)) == UINT64_C(0xffffffffffffff80))
*pi8 = (int8_t)u64;
else
rc = VERR_CFGM_INTEGER_TOO_BIG;
}
if (RT_FAILURE(rc))
*pi8 = i8Def;
return rc;
}
/**
* Query boolean integer value.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of an integer value.
* @param pf Where to store the value.
* @remark This function will interpret any non-zero value as true.
*/
VMMR3DECL(int) CFGMR3QueryBool(PCFGMNODE pNode, const char *pszName, bool *pf)
{
uint64_t u64;
int rc = CFGMR3QueryInteger(pNode, pszName, &u64);
if (RT_SUCCESS(rc))
*pf = u64 ? true : false;
return rc;
}
/**
* Query boolean integer value with default.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of an integer value.
* @param pf Where to store the value. Set to default on failure.
* @param fDef The default value.
* @remark This function will interpret any non-zero value as true.
*/
VMMR3DECL(int) CFGMR3QueryBoolDef(PCFGMNODE pNode, const char *pszName, bool *pf, bool fDef)
{
uint64_t u64;
int rc = CFGMR3QueryIntegerDef(pNode, pszName, &u64, fDef);
*pf = u64 ? true : false;
return rc;
}
/**
* Query I/O port address value.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of an integer value.
* @param pPort Where to store the value.
*/
VMMR3DECL(int) CFGMR3QueryPort(PCFGMNODE pNode, const char *pszName, PRTIOPORT pPort)
{
AssertCompileSize(RTIOPORT, 2);
return CFGMR3QueryU16(pNode, pszName, pPort);
}
/**
* Query I/O port address value with default.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of an integer value.
* @param pPort Where to store the value. Set to default on failure.
* @param PortDef The default value.
*/
VMMR3DECL(int) CFGMR3QueryPortDef(PCFGMNODE pNode, const char *pszName, PRTIOPORT pPort, RTIOPORT PortDef)
{
AssertCompileSize(RTIOPORT, 2);
return CFGMR3QueryU16Def(pNode, pszName, pPort, PortDef);
}
/**
* Query unsigned int address value.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of an integer value.
* @param pu Where to store the value.
*/
VMMR3DECL(int) CFGMR3QueryUInt(PCFGMNODE pNode, const char *pszName, unsigned int *pu)
{
AssertCompileSize(unsigned int, 4);
return CFGMR3QueryU32(pNode, pszName, (uint32_t *)pu);
}
/**
* Query unsigned int address value with default.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of an integer value.
* @param pu Where to store the value. Set to default on failure.
* @param uDef The default value.
*/
VMMR3DECL(int) CFGMR3QueryUIntDef(PCFGMNODE pNode, const char *pszName, unsigned int *pu, unsigned int uDef)
{
AssertCompileSize(unsigned int, 4);
return CFGMR3QueryU32Def(pNode, pszName, (uint32_t *)pu, uDef);
}
/**
* Query signed int address value.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of an integer value.
* @param pi Where to store the value.
*/
VMMR3DECL(int) CFGMR3QuerySInt(PCFGMNODE pNode, const char *pszName, signed int *pi)
{
AssertCompileSize(signed int, 4);
return CFGMR3QueryS32(pNode, pszName, (int32_t *)pi);
}
/**
* Query unsigned int address value with default.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of an integer value.
* @param pi Where to store the value. Set to default on failure.
* @param iDef The default value.
*/
VMMR3DECL(int) CFGMR3QuerySIntDef(PCFGMNODE pNode, const char *pszName, signed int *pi, signed int iDef)
{
AssertCompileSize(signed int, 4);
return CFGMR3QueryS32Def(pNode, pszName, (int32_t *)pi, iDef);
}
/**
* Query pointer integer value.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of an integer value.
* @param ppv Where to store the value.
*/
VMMR3DECL(int) CFGMR3QueryPtr(PCFGMNODE pNode, const char *pszName, void **ppv)
{
uint64_t u64;
int rc = CFGMR3QueryInteger(pNode, pszName, &u64);
if (RT_SUCCESS(rc))
{
uintptr_t u = (uintptr_t)u64;
if (u64 == u)
*ppv = (void *)u;
else
rc = VERR_CFGM_INTEGER_TOO_BIG;
}
return rc;
}
/**
* Query pointer integer value with default.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of an integer value.
* @param ppv Where to store the value. Set to default on failure.
* @param pvDef The default value.
*/
VMMR3DECL(int) CFGMR3QueryPtrDef(PCFGMNODE pNode, const char *pszName, void **ppv, void *pvDef)
{
uint64_t u64;
int rc = CFGMR3QueryIntegerDef(pNode, pszName, &u64, (uintptr_t)pvDef);
if (RT_SUCCESS(rc))
{
uintptr_t u = (uintptr_t)u64;
if (u64 == u)
*ppv = (void *)u;
else
rc = VERR_CFGM_INTEGER_TOO_BIG;
}
if (RT_FAILURE(rc))
*ppv = pvDef;
return rc;
}
/**
* Query Guest Context pointer integer value.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of an integer value.
* @param pGCPtr Where to store the value.
*/
VMMR3DECL(int) CFGMR3QueryGCPtr(PCFGMNODE pNode, const char *pszName, PRTGCPTR pGCPtr)
{
uint64_t u64;
int rc = CFGMR3QueryInteger(pNode, pszName, &u64);
if (RT_SUCCESS(rc))
{
RTGCPTR u = (RTGCPTR)u64;
if (u64 == u)
*pGCPtr = u;
else
rc = VERR_CFGM_INTEGER_TOO_BIG;
}
return rc;
}
/**
* Query Guest Context pointer integer value with default.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of an integer value.
* @param pGCPtr Where to store the value. Set to default on failure.
* @param GCPtrDef The default value.
*/
VMMR3DECL(int) CFGMR3QueryGCPtrDef(PCFGMNODE pNode, const char *pszName, PRTGCPTR pGCPtr, RTGCPTR GCPtrDef)
{
uint64_t u64;
int rc = CFGMR3QueryIntegerDef(pNode, pszName, &u64, GCPtrDef);
if (RT_SUCCESS(rc))
{
RTGCPTR u = (RTGCPTR)u64;
if (u64 == u)
*pGCPtr = u;
else
rc = VERR_CFGM_INTEGER_TOO_BIG;
}
if (RT_FAILURE(rc))
*pGCPtr = GCPtrDef;
return rc;
}
/**
* Query Guest Context unsigned pointer value.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of an integer value.
* @param pGCPtr Where to store the value.
*/
VMMR3DECL(int) CFGMR3QueryGCPtrU(PCFGMNODE pNode, const char *pszName, PRTGCUINTPTR pGCPtr)
{
uint64_t u64;
int rc = CFGMR3QueryInteger(pNode, pszName, &u64);
if (RT_SUCCESS(rc))
{
RTGCUINTPTR u = (RTGCUINTPTR)u64;
if (u64 == u)
*pGCPtr = u;
else
rc = VERR_CFGM_INTEGER_TOO_BIG;
}
return rc;
}
/**
* Query Guest Context unsigned pointer value with default.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of an integer value.
* @param pGCPtr Where to store the value. Set to default on failure.
* @param GCPtrDef The default value.
*/
VMMR3DECL(int) CFGMR3QueryGCPtrUDef(PCFGMNODE pNode, const char *pszName, PRTGCUINTPTR pGCPtr, RTGCUINTPTR GCPtrDef)
{
uint64_t u64;
int rc = CFGMR3QueryIntegerDef(pNode, pszName, &u64, GCPtrDef);
if (RT_SUCCESS(rc))
{
RTGCUINTPTR u = (RTGCUINTPTR)u64;
if (u64 == u)
*pGCPtr = u;
else
rc = VERR_CFGM_INTEGER_TOO_BIG;
}
if (RT_FAILURE(rc))
*pGCPtr = GCPtrDef;
return rc;
}
/**
* Query Guest Context signed pointer value.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of an integer value.
* @param pGCPtr Where to store the value.
*/
VMMR3DECL(int) CFGMR3QueryGCPtrS(PCFGMNODE pNode, const char *pszName, PRTGCINTPTR pGCPtr)
{
uint64_t u64;
int rc = CFGMR3QueryInteger(pNode, pszName, &u64);
if (RT_SUCCESS(rc))
{
RTGCINTPTR u = (RTGCINTPTR)u64;
if (u64 == (uint64_t)u)
*pGCPtr = u;
else
rc = VERR_CFGM_INTEGER_TOO_BIG;
}
return rc;
}
/**
* Query Guest Context signed pointer value with default.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Name of an integer value.
* @param pGCPtr Where to store the value. Set to default on failure.
* @param GCPtrDef The default value.
*/
VMMR3DECL(int) CFGMR3QueryGCPtrSDef(PCFGMNODE pNode, const char *pszName, PRTGCINTPTR pGCPtr, RTGCINTPTR GCPtrDef)
{
uint64_t u64;
int rc = CFGMR3QueryIntegerDef(pNode, pszName, &u64, GCPtrDef);
if (RT_SUCCESS(rc))
{
RTGCINTPTR u = (RTGCINTPTR)u64;
if (u64 == (uint64_t)u)
*pGCPtr = u;
else
rc = VERR_CFGM_INTEGER_TOO_BIG;
}
if (RT_FAILURE(rc))
*pGCPtr = GCPtrDef;
return rc;
}
/**
* Query zero terminated character value storing it in a
* buffer allocated from the MM heap.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Value name. This value must be of zero terminated character string type.
* @param ppszString Where to store the string pointer.
* Free this using MMR3HeapFree().
*/
VMMR3DECL(int) CFGMR3QueryStringAlloc(PCFGMNODE pNode, const char *pszName, char **ppszString)
{
size_t cbString;
int rc = CFGMR3QuerySize(pNode, pszName, &cbString);
if (RT_SUCCESS(rc))
{
char *pszString = (char *)MMR3HeapAlloc(pNode->pVM, MM_TAG_CFGM_USER, cbString);
if (pszString)
{
rc = CFGMR3QueryString(pNode, pszName, pszString, cbString);
if (RT_SUCCESS(rc))
*ppszString = pszString;
else
MMR3HeapFree(pszString);
}
else
rc = VERR_NO_MEMORY;
}
return rc;
}
/**
* Query zero terminated character value storing it in a
* buffer allocated from the MM heap.
*
* @returns VBox status code.
* @param pNode Which node to search for pszName in.
* @param pszName Value name. This value must be of zero terminated character string type.
* @param ppszString Where to store the string pointer. Not set on failure.
* Free this using MMR3HeapFree().
* @param pszDef The default return value. This can be NULL.
*/
VMMR3DECL(int) CFGMR3QueryStringAllocDef(PCFGMNODE pNode, const char *pszName, char **ppszString, const char *pszDef)
{
/*
* (Don't call CFGMR3QuerySize and CFGMR3QueryStringDef here as the latter
* cannot handle pszDef being NULL.)
*/
PCFGMLEAF pLeaf;
int rc = cfgmR3ResolveLeaf(pNode, pszName, &pLeaf);
if (RT_SUCCESS(rc))
{
if (pLeaf->enmType == CFGMVALUETYPE_STRING)
{
size_t const cbSrc = pLeaf->Value.String.cb;
char *pszString = (char *)MMR3HeapAlloc(pNode->pVM, MM_TAG_CFGM_USER, cbSrc);
if (pszString)
{
memcpy(pszString, pLeaf->Value.String.psz, cbSrc);
*ppszString = pszString;
}
else
rc = VERR_NO_MEMORY;
}
else
rc = VERR_CFGM_NOT_STRING;
}
if (RT_FAILURE(rc))
{
if (!pszDef)
*ppszString = NULL;
else
*ppszString = MMR3HeapStrDup(pNode->pVM, MM_TAG_CFGM_USER, pszDef);
if (rc == VERR_CFGM_VALUE_NOT_FOUND || rc == VERR_CFGM_NO_PARENT)
rc = VINF_SUCCESS;
}
return rc;
}
/**
* Dumps the configuration (sub)tree to the release log.
*
* @param pRoot The root node of the dump.
*/
VMMR3DECL(void) CFGMR3Dump(PCFGMNODE pRoot)
{
bool fOldBuffered = RTLogRelSetBuffering(true /*fBuffered*/);
LogRel(("************************* CFGM dump *************************\n"));
cfgmR3Dump(pRoot, 0, DBGFR3InfoLogRelHlp());
LogRel(("********************* End of CFGM dump **********************\n"));
RTLogRelSetBuffering(fOldBuffered);
}
/**
* Info handler, internal version.
*
* @param pVM The VM handle.
* @param pHlp Callback functions for doing output.
* @param pszArgs Argument string. Optional and specific to the handler.
*/
static DECLCALLBACK(void) cfgmR3Info(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
{
/*
* Figure where to start.
*/
PCFGMNODE pRoot = pVM->cfgm.s.pRoot;
if (pszArgs && *pszArgs)
{
int rc = cfgmR3ResolveNode(pRoot, pszArgs, &pRoot);
if (RT_FAILURE(rc))
{
pHlp->pfnPrintf(pHlp, "Failed to resolve CFGM path '%s', %Rrc", pszArgs, rc);
return;
}
}
/*
* Dump the specified tree.
*/
pHlp->pfnPrintf(pHlp, "pRoot=%p:{", pRoot);
cfgmR3DumpPath(pRoot, pHlp);
pHlp->pfnPrintf(pHlp, "}\n");
cfgmR3Dump(pRoot, 0, pHlp);
}
/**
* Recursively prints a path name.
*/
static void cfgmR3DumpPath(PCFGMNODE pNode, PCDBGFINFOHLP pHlp)
{
if (pNode->pParent)
cfgmR3DumpPath(pNode->pParent, pHlp);
pHlp->pfnPrintf(pHlp, "%s/", pNode->szName);
}
/**
* Dumps a branch of a tree.
*/
static void cfgmR3Dump(PCFGMNODE pRoot, unsigned iLevel, PCDBGFINFOHLP pHlp)
{
/*
* Path.
*/
pHlp->pfnPrintf(pHlp, "[");
cfgmR3DumpPath(pRoot, pHlp);
pHlp->pfnPrintf(pHlp, "] (level %d)%s\n", iLevel, pRoot->fRestrictedRoot ? " (restricted root)" : "");
/*
* Values.
*/
PCFGMLEAF pLeaf;
size_t cchMax = 0;
for (pLeaf = CFGMR3GetFirstValue(pRoot); pLeaf; pLeaf = CFGMR3GetNextValue(pLeaf))
cchMax = RT_MAX(cchMax, pLeaf->cchName);
for (pLeaf = CFGMR3GetFirstValue(pRoot); pLeaf; pLeaf = CFGMR3GetNextValue(pLeaf))
{
switch (CFGMR3GetValueType(pLeaf))
{
case CFGMVALUETYPE_INTEGER:
{
pHlp->pfnPrintf(pHlp, " %-*s <integer> = %#018llx (%'lld", (int)cchMax, pLeaf->szName, pLeaf->Value.Integer.u64, pLeaf->Value.Integer.u64);
if ( ( pLeaf->cchName >= 4
&& !RTStrCmp(&pLeaf->szName[pLeaf->cchName - 4], "Size"))
|| ( pLeaf->cchName >= 2
&& !RTStrNCmp(pLeaf->szName, "cb", 2)) )
{
if (pLeaf->Value.Integer.u64 > _2G)
pHlp->pfnPrintf(pHlp, ", %'lld GB", pLeaf->Value.Integer.u64 / _1G);
else if (pLeaf->Value.Integer.u64 > _2M)
pHlp->pfnPrintf(pHlp, ", %'lld MB", pLeaf->Value.Integer.u64 / _1M);
else if (pLeaf->Value.Integer.u64 > _2K)
pHlp->pfnPrintf(pHlp, ", %'lld KB", pLeaf->Value.Integer.u64 / _1K);
}
pHlp->pfnPrintf(pHlp, ")\n");
break;
}
case CFGMVALUETYPE_STRING:
pHlp->pfnPrintf(pHlp, " %-*s <string> = \"%s\" (cb=%zu)\n", (int)cchMax, pLeaf->szName, pLeaf->Value.String.psz, pLeaf->Value.String.cb);
break;
case CFGMVALUETYPE_BYTES:
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);
break;
default:
AssertMsgFailed(("bad leaf!\n"));
break;
}
}
pHlp->pfnPrintf(pHlp, "\n");
/*
* Children.
*/
for (PCFGMNODE pChild = CFGMR3GetFirstChild(pRoot); pChild; pChild = CFGMR3GetNextChild(pChild))
{
Assert(pChild->pNext != pChild);
Assert(pChild->pPrev != pChild);
Assert(pChild->pPrev != pChild->pNext || !pChild->pPrev);
Assert(pChild->pFirstChild != pChild);
Assert(pChild->pParent == pRoot);
cfgmR3Dump(pChild, iLevel + 1, pHlp);
}
}