/* $Id: CFGM.cpp 2981 2007-06-01 16:01:28Z vboxsync $ */ /** @file * CFGM - Configuration Manager. * * This is the main file of the \ref pg_cfgm "CFGM (Configuration Manager)". */ /* * Copyright (C) 2006-2007 innotek GmbH * * 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 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. * * If you received this file as part of a commercial VirtualBox * distribution, then only the terms of your commercial VirtualBox * license agreement apply instead of the previous paragraph. */ /** @page pg_cfgm CFGM - The Configuration Manager * * The configuration manager will load and keep the configuration of a VM * handy (thru query interface) while the VM is running. The VM properties * are organized in a tree and individual nodes can be accessed by normal * path walking. * * Exactly how the CFGM obtains the configuration is specific to the build. * The default for a full build is to query it thru the IMachine interface and * applies it onto a default setup. It's necessary to have a default in the * bottom of this because the IMachine interface doesn't provide all the * required details. * * Devices are given their own subtree where they are protected from accessing * information of any parents. The exported PDM callback interfaces makes sure * of this. * * Validating of the data obtained, except for validation of the primitive type, * is all up to the user. The CFGM user is concidered in a better position to * know the validation rules of the individual properties. * * * @section sec_cfgm_primitives Data Primitives * * CFGM supports the following data primitives: * - Integers. Representation is signed 64-bit. Boolean, unsigned and * small integers are all represented using this primitive. * - Zero terminated character strings. As everywhere else * strings are UTF-8. * - Variable length byte strings. This can be used to get/put binary * objects. * */ /******************************************************************************* * Header Files * *******************************************************************************/ #define LOG_GROUP LOG_GROUP_CFGM #include #include #include #include "CFGMInternal.h" #include #include #include #include #include /******************************************************************************* * Internal Functions * *******************************************************************************/ static int cfgmR3CreateDefault(PVM pVM); 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. */ CFGMR3DECL(int) CFGMR3Init(PVM pVM, PFNCFGMCONSTRUCTOR pfnCFGMConstructor, void *pvUser) { LogFlow(("CFGMR3Init: pfnCFGMConstructor=%p pvUser=%p\n", pfnCFGMConstructor, pvUser)); /* * Init data members. */ pVM->cfgm.s.offVM = RT_OFFSETOF(VM, cfgm); 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); /* * Create the configuration tree. */ if (pfnCFGMConstructor) { /* * 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. */ rc = pfnCFGMConstructor(pVM, pvUser); } else rc = cfgmR3CreateDefault(pVM); if (VBOX_SUCCESS(rc)) { Log(("CFGMR3Init: Successfully constructed the configuration\n")); CFGMR3Dump(CFGMR3GetRoot(pVM)); } else AssertMsgFailed(("Constructor failed with rc=%Vrc pfnCFGMConstructor=%p\n", rc, pfnCFGMConstructor)); return rc; } /** * Terminates the configuration manager. * * @returns VBox status code. * @param pVM VM handle. */ CFGMR3DECL(int) CFGMR3Term(PVM pVM) { CFGMR3RemoveNode(pVM->cfgm.s.pRoot); return 0; } /** * Gets the root node for the VM. * * @returns Pointer to root node. * @param pVM VM handle. */ CFGMR3DECL(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. */ CFGMR3DECL(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. */ CFGMR3DECL(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 '/'. */ CFGMR3DECL(PCFGMNODE) CFGMR3GetChild(PCFGMNODE pNode, const char *pszPath) { PCFGMNODE pChild; int rc = cfgmR3ResolveNode(pNode, pszPath, &pChild); if (VBOX_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. */ CFGMR3DECL(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. */ CFGMR3DECL(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); if (VBOX_SUCCESS(rc)) return pChild; RTStrFree(pszPath); } 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. */ CFGMR3DECL(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. */ CFGMR3DECL(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). */ CFGMR3DECL(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(). */ CFGMR3DECL(int) 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'. */ CFGMR3DECL(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. */ CFGMR3DECL(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(). */ CFGMR3DECL(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). */ CFGMR3DECL(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(). */ CFGMR3DECL(int) 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(). */ CFGMR3DECL(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'. */ CFGMR3DECL(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. */ CFGMR3DECL(int) CFGMR3QueryType(PCFGMNODE pNode, const char *pszName, PCFGMVALUETYPE penmType) { PCFGMLEAF pLeaf; int rc = cfgmR3ResolveLeaf(pNode, pszName, &pLeaf); if (VBOX_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. */ CFGMR3DECL(int) CFGMR3QuerySize(PCFGMNODE pNode, const char *pszName, size_t *pcb) { PCFGMLEAF pLeaf; int rc = cfgmR3ResolveLeaf(pNode, pszName, &pLeaf); if (VBOX_SUCCESS(rc)) { switch (pLeaf->enmType) { case CFGMVALUETYPE_INTEGER: *pcb = sizeof(pLeaf->Value.Integer.u64); break; case CFGMVALUETYPE_STRING: *pcb = pLeaf->Value.String.cch; break; case CFGMVALUETYPE_BYTES: *pcb = pLeaf->Value.Bytes.cb; break; default: rc = VERR_INTERNAL_ERROR; 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. */ CFGMR3DECL(int) CFGMR3QueryInteger(PCFGMNODE pNode, const char *pszName, uint64_t *pu64) { PCFGMLEAF pLeaf; int rc = cfgmR3ResolveLeaf(pNode, pszName, &pLeaf); if (VBOX_SUCCESS(rc)) { if (pLeaf->enmType == CFGMVALUETYPE_INTEGER) *pu64 = pLeaf->Value.Integer.u64; else rc = VERR_CFGM_NOT_INTEGER; } 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.) */ CFGMR3DECL(int) CFGMR3QueryString(PCFGMNODE pNode, const char *pszName, char *pszString, size_t cchString) { PCFGMLEAF pLeaf; int rc = cfgmR3ResolveLeaf(pNode, pszName, &pLeaf); if (VBOX_SUCCESS(rc)) { if (pLeaf->enmType == CFGMVALUETYPE_STRING) { if (cchString >= pLeaf->Value.String.cch) { memcpy(pszString, pLeaf->Value.String.psz, pLeaf->Value.String.cch); memset(pszString + pLeaf->Value.String.cch, 0, cchString - pLeaf->Value.String.cch); } else rc = VERR_CFGM_NOT_ENOUGH_SPACE; } else rc = VERR_CFGM_NOT_STRING; } 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. */ CFGMR3DECL(int) CFGMR3QueryBytes(PCFGMNODE pNode, const char *pszName, void *pvData, size_t cbData) { PCFGMLEAF pLeaf; int rc = cfgmR3ResolveLeaf(pNode, pszName, &pLeaf); if (VBOX_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; } /* * -+- internal apis -+- */ /** * Creates the default configuration. * This assumes an empty tree. * * @returns VBox status code. * @param pVM VM handle. */ static int cfgmR3CreateDefault(PVM pVM) { int rc; int rcAll = VINF_SUCCESS; #define UPDATERC() do { if (VBOX_FAILURE(rc) && VBOX_SUCCESS(rcAll)) rcAll = rc; } while (0) /* * Root level. */ PCFGMNODE pRoot = (PCFGMNODE)MMR3HeapAllocZ(pVM, MM_TAG_CFGM, sizeof(*pRoot)); if (!pRoot) return VERR_NO_MEMORY; pRoot->pVM = pVM; pRoot->cchName = 0; Assert(!pVM->cfgm.s.pRoot); pVM->cfgm.s.pRoot = pRoot; /* * Create VM default values. */ rc = CFGMR3InsertString(pRoot, "Name", "Default VM"); UPDATERC(); rc = CFGMR3InsertInteger(pRoot, "RamSize", 128 * _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", 128 * _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(); /* 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(); /* * 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(); #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) { if (pNode) { 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 && !memcmp(pszPath, pChild->szName, cchName) ) break; /* if not found, we're done. */ if (!pChild) return VERR_CFGM_CHILD_NOT_FOUND; /* next iteration */ pNode = pChild; pszPath = pszNext; } /* won't get here */ } else return VERR_CFGM_NO_PARENT; } /** * 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) { int rc; if (pNode) { RTUINT cchName = strlen(pszName); PCFGMLEAF pLeaf = pNode->pFirstLeaf; while (pLeaf) { if ( cchName == pLeaf->cchName && !memcmp(pszName, pLeaf->szName, cchName) ) { *ppLeaf = pLeaf; return VINF_SUCCESS; } /* next */ pLeaf = pLeaf->pNext; } rc = VERR_CFGM_VALUE_NOT_FOUND; } else rc = VERR_CFGM_NO_PARENT; return rc; } /** * 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) */ CFGMR3DECL(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 compontent. */ 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 (VBOX_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 = pNode->pFirstChild; if (pPrev) { for (;; pPrev = pPrev->pNext) { if ( cchName == pPrev->cchName && !memcmp(pszName, pPrev->szName, cchName)) return VERR_CFGM_NODE_EXISTS; if (!pPrev->pNext) 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->pNext = NULL; pNew->pPrev = pPrev; if (pPrev) pPrev->pNext = pNew; else pNode->pFirstChild = 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. */ CFGMR3DECL(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. */ CFGMR3DECL(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. */ CFGMR3DECL(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 = pNode->pFirstLeaf; if (pPrev) { for (;; pPrev = pPrev->pNext) { if ( cchName == pPrev->cchName && !memcmp(pszName, pPrev->szName, cchName)) return VERR_CFGM_LEAF_EXISTS; if (!pPrev->pNext) 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->pNext = NULL; pNew->pPrev = pPrev; if (pPrev) pPrev->pNext = pNew; else pNode->pFirstLeaf = 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. */ CFGMR3DECL(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 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.cch = 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. */ CFGMR3DECL(int) CFGMR3InsertInteger(PCFGMNODE pNode, const char *pszName, uint64_t u64Integer) { PCFGMLEAF pLeaf; int rc = cfgmR3InsertLeaf(pNode, pszName, &pLeaf); if (VBOX_SUCCESS(rc)) { pLeaf->enmType = CFGMVALUETYPE_INTEGER; pLeaf->Value.Integer.u64 = u64Integer; } return rc; } /** * Inserts a new string value. * * @returns VBox status code. * @param pNode Parent node. * @param pszName Value name. * @param pszString The value. */ CFGMR3DECL(int) CFGMR3InsertString(PCFGMNODE pNode, const char *pszName, const char *pszString) { int rc; if (pNode) { /* * Allocate string object first. */ size_t cchString = strlen(pszString) + 1; char *pszStringCopy = (char *)MMR3HeapAlloc(pNode->pVM, MM_TAG_CFGM_STRING, RT_ALIGN_Z(cchString, 16)); if (pszStringCopy) { memcpy(pszStringCopy, pszString, cchString); /* * Create value leaf and set it to string type. */ PCFGMLEAF pLeaf; rc = cfgmR3InsertLeaf(pNode, pszName, &pLeaf); if (VBOX_SUCCESS(rc)) { pLeaf->enmType = CFGMVALUETYPE_STRING; pLeaf->Value.String.psz = pszStringCopy; pLeaf->Value.String.cch = cchString; } } else rc = VERR_NO_MEMORY; } else rc = VERR_CFGM_NO_PARENT; 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. */ CFGMR3DECL(int) CFGMR3InsertBytes(PCFGMNODE pNode, const char *pszName, 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, RT_ALIGN_Z(cbBytes, 16)); if (pvCopy || !cbBytes) { memcpy(pvCopy, pvBytes, cbBytes); /* * Create value leaf and set it to string type. */ PCFGMLEAF pLeaf; rc = cfgmR3InsertLeaf(pNode, pszName, &pLeaf); if (VBOX_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; } /** * Remove a value. * * @returns VBox status code. * @param pNode Parent node. * @param pszName Name of the new child node. */ CFGMR3DECL(int) CFGMR3RemoveValue(PCFGMNODE pNode, const char *pszName) { PCFGMLEAF pLeaf; int rc = cfgmR3ResolveLeaf(pNode, pszName, &pLeaf); if (VBOX_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. */ CFGMR3DECL(int) CFGMR3QueryU64(PCFGMNODE pNode, const char *pszName, uint64_t *pu64) { return CFGMR3QueryInteger(pNode, pszName, pu64); } /** * 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. */ CFGMR3DECL(int) CFGMR3QueryS64(PCFGMNODE pNode, const char *pszName, int64_t *pi64) { uint64_t u64; int rc = CFGMR3QueryInteger(pNode, pszName, &u64); if (VBOX_SUCCESS(rc)) *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. */ CFGMR3DECL(int) CFGMR3QueryU32(PCFGMNODE pNode, const char *pszName, uint32_t *pu32) { uint64_t u64; int rc = CFGMR3QueryInteger(pNode, pszName, &u64); if (VBOX_SUCCESS(rc)) { if (!(u64 & 0xffffffff00000000ULL)) *pu32 = (uint32_t)u64; else rc = VERR_CFGM_INTEGER_TOO_BIG; } 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. */ CFGMR3DECL(int) CFGMR3QueryS32(PCFGMNODE pNode, const char *pszName, int32_t *pi32) { uint64_t u64; int rc = CFGMR3QueryInteger(pNode, pszName, &u64); if (VBOX_SUCCESS(rc)) { if ( !(u64 & 0xffffffff80000000ULL) || (u64 & 0xffffffff80000000ULL) == 0xffffffff80000000ULL) if (((uint32_t)(u64 >> 32) + 1) <= 1) *pi32 = (int32_t)u64; else rc = VERR_CFGM_INTEGER_TOO_BIG; } 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. */ CFGMR3DECL(int) CFGMR3QueryU16(PCFGMNODE pNode, const char *pszName, uint16_t *pu16) { uint64_t u64; int rc = CFGMR3QueryInteger(pNode, pszName, &u64); if (VBOX_SUCCESS(rc)) { if (!(u64 & 0xffffffffffff0000ULL)) *pu16 = (int16_t)u64; else rc = VERR_CFGM_INTEGER_TOO_BIG; } 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. */ CFGMR3DECL(int) CFGMR3QueryS16(PCFGMNODE pNode, const char *pszName, int16_t *pi16) { uint64_t u64; int rc = CFGMR3QueryInteger(pNode, pszName, &u64); if (VBOX_SUCCESS(rc)) { if ( !(u64 & 0xffffffffffff8000ULL) || (u64 & 0xffffffffffff8000ULL) == 0xffffffffffff8000ULL) *pi16 = (int16_t)u64; else rc = VERR_CFGM_INTEGER_TOO_BIG; } 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. */ CFGMR3DECL(int) CFGMR3QueryU8(PCFGMNODE pNode, const char *pszName, uint8_t *pu8) { uint64_t u64; int rc = CFGMR3QueryInteger(pNode, pszName, &u64); if (VBOX_SUCCESS(rc)) { if (!(u64 & 0xffffffffffffff00ULL)) *pu8 = (uint8_t)u64; else rc = VERR_CFGM_INTEGER_TOO_BIG; } 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. */ CFGMR3DECL(int) CFGMR3QueryS8(PCFGMNODE pNode, const char *pszName, int8_t *pi8) { uint64_t u64; int rc = CFGMR3QueryInteger(pNode, pszName, &u64); if (VBOX_SUCCESS(rc)) { if ( !(u64 & 0xffffffffffffff80ULL) || (u64 & 0xffffffffffffff80ULL) == 0xffffffffffffff80ULL) *pi8 = (int8_t)u64; else rc = VERR_CFGM_INTEGER_TOO_BIG; } 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. */ CFGMR3DECL(int) CFGMR3QueryBool(PCFGMNODE pNode, const char *pszName, bool *pf) { uint64_t u64; int rc = CFGMR3QueryInteger(pNode, pszName, &u64); if (VBOX_SUCCESS(rc)) *pf = u64 ? true : false; return rc; } /** * 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. */ CFGMR3DECL(int) CFGMR3QueryPtr(PCFGMNODE pNode, const char *pszName, void **ppv) { uint64_t u64; int rc = CFGMR3QueryInteger(pNode, pszName, &u64); if (VBOX_SUCCESS(rc)) { uintptr_t u = (uintptr_t)u64; if (u64 == u) *ppv = (void *)u; else rc = VERR_CFGM_INTEGER_TOO_BIG; } 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. */ CFGMR3DECL(int) CFGMR3QueryGCPtr(PCFGMNODE pNode, const char *pszName, PRTGCPTR pGCPtr) { uint64_t u64; int rc = CFGMR3QueryInteger(pNode, pszName, &u64); if (VBOX_SUCCESS(rc)) { RTGCPTR u = (RTGCPTR)u64; if (u64 == u) *pGCPtr = u; else rc = VERR_CFGM_INTEGER_TOO_BIG; } 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. */ CFGMR3DECL(int) CFGMR3QueryGCPtrU(PCFGMNODE pNode, const char *pszName, PRTGCUINTPTR pGCPtr) { uint64_t u64; int rc = CFGMR3QueryInteger(pNode, pszName, &u64); if (VBOX_SUCCESS(rc)) { RTGCUINTPTR u = (RTGCUINTPTR)u64; if (u64 == u) *pGCPtr = u; else rc = VERR_CFGM_INTEGER_TOO_BIG; } 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. */ CFGMR3DECL(int) CFGMR3QueryGCPtrS(PCFGMNODE pNode, const char *pszName, PRTGCINTPTR pGCPtr) { uint64_t u64; int rc = CFGMR3QueryInteger(pNode, pszName, &u64); if (VBOX_SUCCESS(rc)) { RTGCINTPTR u = (RTGCINTPTR)u64; if (u64 == (uint64_t)u) *pGCPtr = u; else rc = VERR_CFGM_INTEGER_TOO_BIG; } 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(). */ CFGMR3DECL(int) CFGMR3QueryStringAlloc(PCFGMNODE pNode, const char *pszName, char **ppszString) { size_t cch; int rc = CFGMR3QuerySize(pNode, pszName, &cch); if (VBOX_SUCCESS(rc)) { char *pszString = (char *)MMR3HeapAlloc(pNode->pVM, MM_TAG_CFGM_USER, cch); if (pszString) { rc = CFGMR3QueryString(pNode, pszName, pszString, cch); if (VBOX_SUCCESS(rc)) *ppszString = pszString; else MMR3HeapFree(pszString); } else rc = VERR_NO_MEMORY; } return rc; } /** * Dumps the configuration (sub)tree to the release log. * * @param pRoot The root node of the dump. */ CFGMR3DECL(void) CFGMR3Dump(PCFGMNODE pRoot) { LogRel(("************************* CFGM dump *************************\n")); cfgmR3Info(pRoot->pVM, DBGFR3InfoLogRelHlp(), NULL); LogRel(("********************* End of CFGM dump **********************\n")); } /** * 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 (VBOX_FAILURE(rc)) { pHlp->pfnPrintf(pHlp, "Failed to resolve CFGM path '%s', %Vrc", pszArgs, rc); return; } } /* * Dump the specified tree. */ pHlp->pfnPrintf(pHlp, "pRoot=%p:{", pRoot); cfgmR3DumpPath(pRoot, pHlp); pHlp->pfnPrintf(pHlp, "}\n"); cfgmR3Dump(pRoot, 0, pHlp); } /** * Recursivly 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; unsigned 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 = %#018llx (%lld)\n", cchMax, pLeaf->szName, pLeaf->Value.Integer.u64, pLeaf->Value.Integer.u64); break; case CFGMVALUETYPE_STRING: pHlp->pfnPrintf(pHlp, " %-*s = \"%s\" (cch=%d)\n", cchMax, pLeaf->szName, pLeaf->Value.String.psz, pLeaf->Value.String.cch); break; case CFGMVALUETYPE_BYTES: pHlp->pfnPrintf(pHlp, " %-*s = \"%.*Vhxs\" (cb=%d)\n", 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 != pChild); cfgmR3Dump(pChild, iLevel + 1, pHlp); } }