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NDBViewer.cpp
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#include "StdAfx.h"
#include "NDBViewer.h"
#include "ndbport.h"
CMap<NID, NID, const WCHAR*, const WCHAR*> s_nidToString;
bool fMapInit = false;
void InitNidMap();
CFont* g_Font;
CFont* g_FontFixedWidth;
bool fFontFixedWidthInit = false;
bool fFontInit = false;
const WCHAR* GetPlatformString(WORD w)
{
if(w & NDB_PLATFORM_NT) return L"NDB_PLATFORM_NT";
if(w & NDB_PLATFORM_CHI) return L"NDB_PLATFORM_CHI";
if(w & NDB_PLATFORM_WIN16) return L"NDB_PLATFORM_WIN16";
if(w & NDB_PLATFORM_DOS) return L"NDB_PLATFORM_DOS";
if(w & NDB_PLATFORM_MAC) return L"NDB_PLATFORM_MAC";
return L"Unknown";
}
const WCHAR* GetVersionString(WORD w)
{
if(w == NDB16K_VERSION) return L"NDB16K_VERSION";
if(w == NDB64K_VERSION) return L"NDB64K_VERSION";
if(w == NDBUNI_VERSION) return L"NDBUNI_VERSION";
if(w == NDBUNI_HUGETBL_VERSION) return L"NDBUNI_HUGETBL_VERSION";
if(w == NDBUNI_BIGHNALLOC_VERSION) return L"NDBUNI_BIGHNALLOC_VERSION";
if(w == NDBUNI_BIGSBLOCKLEAF_VERSION) return L"NDBUNI_BIGSBLOCKLEAF_VERSION";
return L"Unknown";
}
const WCHAR* GetClientVersionString(WORD w)
{
if(w == PST_VERSION) return L"PST_VERSION";
if(w == OST_VERSION) return L"OST_VERSION";
if(w == OST_VERSION_55) return L"OST_VERSION_55";
if(w == OST_VERSION_50) return L"OST_VERSION_50";
if(w == XST_VERSION) return L"XST_VERSION";
return L"Unknown";
}
const WCHAR* GetClientMagicNumString(WORD w)
{
if(w == PST_MAGIC) return L"PST_MAGIC";
if(w == OST_MAGIC) return L"OST_MAGIC";
if(w == XST_MAGIC) return L"XST_MAGIC";
return L"Unknown";
}
const WCHAR* GetMagicNumString(DWORD dw)
{
if(dw == dwMagicHL) return L"dwMagicHL";
if(dw == dwMagicLH) return L"dwMagicLH";
return L"Unknown";
}
const WCHAR* GetAMapString(BYTE b)
{
if(b == 0) return L"FALSE";
if(b == 1) return L"TRUE";
if(b == OL12_VALID_AMAP) return L"OL12_VALID_AMAP";
return L"Unknown, TRUE?";
}
const WCHAR* GetPTypeString(BYTE b)
{
if(b == ptypeBBT) return L"ptypeBBT";
if(b == ptypeNBT) return L"ptypeNBT";
if(b == ptypeFMap) return L"ptypeFMap";
if(b == ptypePMap) return L"ptypePMap";
if(b == ptypeAMap) return L"ptypeAMap";
if(b == ptypeFPMap) return L"ptypeFPMap";
if(b == ptypeFL) return L"ptypeFL";
if(b == ptypeRBT) return L"ptypeRBT";
if(b == ptypeNRBT) return L"ptypeNRBT";
return L"Unknown";
}
CFont* GetGlobalFont()
{
if(!fFontInit)
{
g_Font = new CFont();
g_Font->CreatePointFont(80, L"Segoe UI");
fFontInit = true;
}
return g_Font;
}
CFont* GetGlobalFontFixedWidth()
{
if(!fFontFixedWidthInit)
{
g_FontFixedWidth = new CFont();
g_FontFixedWidth->CreatePointFont(80, L"Courier New");
fFontFixedWidthInit = true;
}
return g_FontFixedWidth;
}
void DestroyFonts()
{
if(fFontInit)
delete g_Font;
if(fFontFixedWidthInit)
delete g_FontFixedWidth;
fFontInit = false;
fFontFixedWidthInit = false;
}
NDBViewer::NDBViewer(LPCWSTR filename)
: m_ndb(filename, CFile::modeRead | CFile::shareExclusive)
{
ASSERT(filename != NULL);
InitNidMap();
ReadVerifyHeader();
m_cachedAMapBitmap = NULL;
m_cachedBTBitmap = NULL;
}
NDBViewer::~NDBViewer(void)
{
// free memory used by the page cache
for(int i = 0; i < m_fileCacheAgeList.GetCount(); i++)
{
CACHEINFO* pCi = m_fileCache[m_fileCacheAgeList.GetAt(m_fileCacheAgeList.FindIndex(i))];
delete [] pCi->pData;
delete pCi;
}
// delete the cached bitmaps, if any
if(m_cachedAMapBitmap)
delete m_cachedAMapBitmap;
if(m_cachedBTBitmap)
delete m_cachedBTBitmap;
}
CB NDBViewer::IsFree(IB ib)
{
// Is this IB free in the AMap, and if so, how much free space?
IB ibAMap = ib - ((ib - ibAMapBase) % cbPerAMap);
IB ibPMap = ib - ((ib - ibPMapBase) % cbPerPMap);
UINT uiAMapSlot = (UINT)(ib - ibAMap) / cbPerSlot;
UINT uiPMapSlot = (UINT)(ib - ibPMap) / cbPage;
BOOL fAMapFree = FALSE;
BOOL fPMapFree = FALSE;
BYTE page[512];
CB cbFreeSpace = 0;
// Read AMap page
ReadPage(page, sizeof(page), NULL, ibAMap);
// Is this slot free?
fAMapFree = !(BMapTestBit(page, uiAMapSlot));
if(fAMapFree)
{
cbFreeSpace = cbPerSlot;
}
else
{
// if it's occupied, check to see if it's free in the PMap
// if the IB is page aligned.
if(uiAMapSlot % cbPerSlot == 0)
{
// sector aligned. check PMap
ReadPage(page, sizeof(page), NULL, ibPMap);
fPMapFree = !(BMapTestBit(page, uiPMapSlot));
if(fPMapFree)
{
cbFreeSpace = cbPage;
}
}
}
return cbFreeSpace;
}
bool NDBViewer::ReadVerifyHeader(void)
{
DWORD dwCRC;
m_ndb.SeekToBegin();
m_ndb.Read((void*)(&m_header), sizeof(m_header));
// compute partial crc
dwCRC = ComputeCRC((((BYTE*)&m_header) + ibHeaderCRCPartialStart), cbHeaderCRCPartial);
m_fPartialCRCPass = (dwCRC == m_header.dwCRCPartial);
// compute full crc
dwCRC = ComputeCRC((((BYTE*)&m_header) + ibHeaderCRCFullStart), cbHeaderCRCFull);
m_fFullCRCPass = (dwCRC == m_header.dwCRCFull);
return true;
}
void NDBViewer::PopulateNBT(CTreeCtrl *ptctrl)
{
HTREEITEM hItem = NULL;
NodeData * pNodeData = NULL;
WCHAR nodeTitle[255];
// Add root node to tree
wsprintf(nodeTitle, L"Page BID: 0x%I64X, IB: %I64u", m_header.root.brefNBT.bid, m_header.root.brefNBT.ib);
hItem = ptctrl->InsertItem(nodeTitle, TVI_ROOT);
pNodeData = new NodeData;
pNodeData->bref = m_header.root.brefNBT;
pNodeData->nid = 0;
pNodeData->btkey = 0;
pNodeData->cb = 512;
pNodeData->ulFlags = aOpenBTPage;
ptctrl->SetItemData(hItem, (DWORD_PTR)pNodeData);
ptctrl->SetItemImage(hItem, iconPage, iconPage);
AddFalseChild(ptctrl, hItem);
// Add children of root node
AddBTNodeChildren(ptctrl, hItem);
}
void NDBViewer::PopulateBBT(CTreeCtrl *ptctrl)
{
HTREEITEM hItem = NULL;
NodeData * pNodeData = NULL;
WCHAR nodeTitle[255];
// Add root node to tree
wsprintf(nodeTitle, L"Page BID: 0x%I64X, IB: %I64u", m_header.root.brefBBT.bid, m_header.root.brefBBT.ib);
hItem = ptctrl->InsertItem(nodeTitle, TVI_ROOT);
pNodeData = new NodeData;
pNodeData->bref = m_header.root.brefBBT;
pNodeData->btkey = 0;
pNodeData->nid = 0;
pNodeData->cb = 512;
pNodeData->ulFlags = aOpenBTPage;
ptctrl->SetItemData(hItem, (DWORD_PTR)pNodeData);
ptctrl->SetItemImage(hItem, iconPage, iconPage);
AddFalseChild(ptctrl, hItem);
// Add children of root node
AddBTNodeChildren(ptctrl, hItem);
}
void NDBViewer::PopulateSBlock(CTreeCtrl *ptctrl, const BREF& bref, CB cb)
{
HTREEITEM hItem = NULL;
NodeData * pNodeData = NULL;
WCHAR nodeTitle[255];
// Add root node to tree
wsprintf(nodeTitle, L"SBlock BID: 0x%I64X, IB: %I64u", bref.bid, bref.ib);
hItem = ptctrl->InsertItem(nodeTitle, TVI_ROOT);
pNodeData = new NodeData;
pNodeData->bref = bref;
pNodeData->btkey = 0;
pNodeData->nid = 0;
pNodeData->cb = cb;
pNodeData->ulFlags = aOpenBlock;
ptctrl->SetItemData(hItem, (DWORD_PTR)pNodeData);
ptctrl->SetItemImage(hItem, iconPage, iconPage);
AddFalseChild(ptctrl, hItem);
// Add children of root node
AddSBlockChildren(ptctrl, hItem);
}
void NDBViewer::PopulateHeader(CTreeCtrl *ptctrl)
{
WCHAR nodeTitle[255];
HTREEITEM hItem = NULL;
wsprintf(nodeTitle, L"dwMagic: 0x%X (%s)", m_header.dwMagic, GetMagicNumString(m_header.dwMagic));
ptctrl->InsertItem(nodeTitle, TVI_ROOT);
wsprintf(nodeTitle, L"dwCRCPartial: 0x%X", m_header.dwCRCPartial);
ptctrl->InsertItem(nodeTitle, TVI_ROOT);
wsprintf(nodeTitle, L"wMagicClient: 0x%X (%s)", m_header.wMagicClient, GetClientMagicNumString(m_header.wMagicClient));
ptctrl->InsertItem(nodeTitle, TVI_ROOT);
wsprintf(nodeTitle, L"wVer: %u (%s)", m_header.wVer, GetVersionString(m_header.wVer));
ptctrl->InsertItem(nodeTitle, TVI_ROOT);
wsprintf(nodeTitle, L"wVerClient: %u (%s)", m_header.wVerClient, GetClientVersionString(m_header.wVerClient));
ptctrl->InsertItem(nodeTitle, TVI_ROOT);
wsprintf(nodeTitle, L"bPlatformCreate: 0x%X (%s)", m_header.bPlatformCreate, GetPlatformString(m_header.bPlatformCreate));
ptctrl->InsertItem(nodeTitle, TVI_ROOT);
wsprintf(nodeTitle, L"bPlatformAccess: 0x%X (%s)", m_header.bPlatformAccess, GetPlatformString(m_header.bPlatformAccess));
ptctrl->InsertItem(nodeTitle, TVI_ROOT);
wsprintf(nodeTitle, L"dwOpenDBID: 0x%X", m_header.dwOpenDBID);
ptctrl->InsertItem(nodeTitle, TVI_ROOT);
wsprintf(nodeTitle, L"dwOpenClaimID: 0x%X", m_header.dwOpenClaimID);
ptctrl->InsertItem(nodeTitle, TVI_ROOT);
wsprintf(nodeTitle, L"bidUnused: 0x%I64X", m_header.bidUnused);
ptctrl->InsertItem(nodeTitle, TVI_ROOT);
wsprintf(nodeTitle, L"bidNextP: 0x%I64X", m_header.bidNextP);
ptctrl->InsertItem(nodeTitle, TVI_ROOT);
wsprintf(nodeTitle, L"dwUnique: 0x%X", m_header.dwUnique);
ptctrl->InsertItem(nodeTitle, TVI_ROOT);
hItem = ptctrl->InsertItem(L"rgnid", TVI_ROOT);
for(int i = 0; i < cnidTypesMax; i++)
{
if(i == NID_TYPE_NORMAL_FOLDER ||
i == NID_TYPE_SEARCH_FOLDER ||
i == NID_TYPE_NORMAL_MESSAGE ||
i == NID_TYPE_ASSOC_MESSAGE
)
wsprintf(nodeTitle, L"[%i] %s: 0x%X (%u allocated)", i, s_nidTypeToString[i], m_header.rgnid[i], (m_header.rgnid[i]+1) - GetMinNIDIndex(i));
else
wsprintf(nodeTitle, L"[%i] %s: 0x%X", i, s_nidTypeToString[i], m_header.rgnid[i]);
ptctrl->InsertItem(nodeTitle, hItem);
}
hItem = ptctrl->InsertItem(L"root", TVI_ROOT);
wsprintf(nodeTitle, L"cOrphans: %u", m_header.root.cOrphans);
ptctrl->InsertItem(nodeTitle, hItem);
wsprintf(nodeTitle, L"ibFileEof: %I64u", m_header.root.ibFileEof);
ptctrl->InsertItem(nodeTitle, hItem);
wsprintf(nodeTitle, L"ibAMapLast: %I64u", m_header.root.ibAMapLast);
ptctrl->InsertItem(nodeTitle, hItem);
wsprintf(nodeTitle, L"cbAMapFree: %u", m_header.root.cbAMapFree);
ptctrl->InsertItem(nodeTitle, hItem);
wsprintf(nodeTitle, L"cbPMapFree: %u", m_header.root.cbPMapFree);
ptctrl->InsertItem(nodeTitle, hItem);
wsprintf(nodeTitle, L"brefNBT Page BID: 0x%I64X, IB: %I64u", m_header.root.brefNBT.bid, m_header.root.brefNBT.ib);
ptctrl->InsertItem(nodeTitle, hItem);
wsprintf(nodeTitle, L"brefBBT Page BID: 0x%I64X, IB: %I64u", m_header.root.brefBBT.bid, m_header.root.brefBBT.ib);
ptctrl->InsertItem(nodeTitle, hItem);
wsprintf(nodeTitle, L"fAmapValid: 0x%X (%s)", m_header.root.fAMapValid, GetAMapString(m_header.root.fAMapValid));
ptctrl->InsertItem(nodeTitle, hItem);
wsprintf(nodeTitle, L"bARVec: 0x%X", m_header.root.bARVec);
ptctrl->InsertItem(nodeTitle, hItem);
wsprintf(nodeTitle, L"cARVec: %u", m_header.root.cARVec);
ptctrl->InsertItem(nodeTitle, hItem);
hItem = ptctrl->InsertItem(L"rgbFM", TVI_ROOT);
for(int i = 0; i < cEntFMRoot; i++)
{
wsprintf(nodeTitle, L"[%i] 0x%X", i, m_header.rgbFM[i]);
ptctrl->InsertItem(nodeTitle, hItem);
}
hItem = ptctrl->InsertItem(L"rgbFP", TVI_ROOT);
for(int i = 0; i < cbFPRoot; i++)
{
wsprintf(nodeTitle, L"[%i] 0x%X", i, m_header.rgbFP[i]);
ptctrl->InsertItem(nodeTitle, hItem);
}
wsprintf(nodeTitle, L"bSentinel: 0x%X", m_header.bSentinel);
ptctrl->InsertItem(nodeTitle, TVI_ROOT);
wsprintf(nodeTitle, L"bCryptMethod: 0x%X (%s)", m_header.bCryptMethod, CRYPTSTRING(m_header.bCryptMethod));
ptctrl->InsertItem(nodeTitle, TVI_ROOT);
wsprintf(nodeTitle, L"rgbReserved: 0x%X", *((DWORD*)&m_header.rgbReserved));
ptctrl->InsertItem(nodeTitle, TVI_ROOT);
wsprintf(nodeTitle, L"bidNextB: 0x%I64X", m_header.bidNextB);
ptctrl->InsertItem(nodeTitle, TVI_ROOT);
wsprintf(nodeTitle, L"dwCRCFull: 0x%X", m_header.dwCRCFull);
ptctrl->InsertItem(nodeTitle, TVI_ROOT);
hItem = ptctrl->InsertItem(L"rgbVersionEncoded", TVI_ROOT);
for(int i = 0; i < 3; i++)
{
wsprintf(nodeTitle, L"[%i] 0x%X", i, m_header.rgbVersionEncoded[i]);
ptctrl->InsertItem(nodeTitle, hItem);
}
wsprintf(nodeTitle, L"bLockSemaphore: 0x%X", m_header.bLockSemaphore);
ptctrl->InsertItem(nodeTitle, TVI_ROOT);
hItem = ptctrl->InsertItem(L"rgbLock", TVI_ROOT);
for(int i = 0; i < cLockMax; i++)
{
wsprintf(nodeTitle, L"[%i] 0x%X", i, m_header.rgbLock[i]);
ptctrl->InsertItem(nodeTitle, hItem);
}
}
// Because node expansion (the trigger to add AddSBlockChildren) is either manual
// or otherwise guarded, we don't action on bad data here
void NDBViewer::AddSBlockChildren(CTreeCtrl* ptctrl, HTREEITEM parent)
{
BLOCKTRAILER bt;
BYTE * pBuffer = NULL;
SBLOCK * pSBlock = NULL;
DWORD dwCRC;
WORD sig;
bool fCorrectType;
bool fCRCPass;
bool fSigMatch;
bool fValid;
HTREEITEM hItemChild = NULL;
WCHAR nodeTitle[255];
NodeData * pNodeData = (NodeData *)ptctrl->GetItemData(parent);
NodeData * pChildNodeData = NULL;
if(pNodeData && pNodeData->bref.bid && (!pNodeData->cb || !pNodeData->bref.ib))
{
// We need to do a BBT lookup to fill out the data
UINT cRefs;
if(!LookupBID(pNodeData->bref.bid, pNodeData->bref, pNodeData->cb, cRefs))
{
RemoveFalseChild(ptctrl, parent);
wsprintf(nodeTitle, L"Could not find SBlock in BBT");
hItemChild = ptctrl->InsertItem(nodeTitle, parent);
pChildNodeData = new NodeData;
memcpy(pChildNodeData, pNodeData, sizeof(NodeData));
pChildNodeData->ulFlags |= fInfoNode;
ptctrl->SetItemData(hItemChild, (DWORD_PTR)pChildNodeData);
return;
}
}
if(pNodeData && !(pNodeData->ulFlags & fChildrenLoaded))
{
RemoveFalseChild(ptctrl, parent);
UINT cbAligned = (UINT)CbAlignDisk(pNodeData->cb);
UINT cbUnaligned = BBufferSize((UINT)pNodeData->cb);
pBuffer = new BYTE[cbUnaligned];
pSBlock = (SBLOCK*)pBuffer;
ReadBlock(pBuffer, cbUnaligned, &bt, pNodeData->bref.ib, cbAligned);
dwCRC = ComputeCRC(pBuffer, cbUnaligned);
fCRCPass = (dwCRC == bt.dwCRC);
sig = ComputeSig(pNodeData->bref.ib, pNodeData->bref.bid);
fCRCPass = (dwCRC == bt.dwCRC);
fSigMatch = (sig == bt.wSig);
fCorrectType = (pSBlock->btype == btypeSB);
fValid = fCRCPass && fSigMatch && fCorrectType;
if(!fValid)
{
ptctrl->SetItemImage(parent, iconCorrupt, iconCorrupt);
pNodeData->ulFlags |= errCRCFailed;
wsprintf(nodeTitle, L"CRC %s", fCRCPass ? L"Valid" : L"Invalid");
hItemChild = ptctrl->InsertItem(nodeTitle, parent);
pChildNodeData = new NodeData;
memcpy(pChildNodeData, pNodeData, sizeof(NodeData));
pChildNodeData->ulFlags |= fInfoNode;
ptctrl->SetItemData(hItemChild, (DWORD_PTR)pChildNodeData);
wsprintf(nodeTitle, L"Sig %s (0x%X)", fSigMatch ? L"Valid" : L"Invalid", bt.wSig);
hItemChild = ptctrl->InsertItem(nodeTitle, parent);
pChildNodeData = new NodeData;
memcpy(pChildNodeData, pNodeData, sizeof(NodeData));
pChildNodeData->ulFlags |= fInfoNode;
ptctrl->SetItemData(hItemChild, (DWORD_PTR)pChildNodeData);
wsprintf(nodeTitle, L"BType %s (%s)", fCorrectType ? L"Valid" : L"Invalid", BTYPESTRING(pSBlock->btype));
hItemChild = ptctrl->InsertItem(nodeTitle, parent);
pChildNodeData = new NodeData;
memcpy(pChildNodeData, pNodeData, sizeof(NodeData));
pChildNodeData->ulFlags |= fInfoNode;
ptctrl->SetItemData(hItemChild, (DWORD_PTR)pChildNodeData);
}
// Add SBlock specific values
wsprintf(nodeTitle, L"Depth: %u", pSBlock->cLevel);
hItemChild = ptctrl->InsertItem(nodeTitle, parent);
pChildNodeData = new NodeData;
memcpy(pChildNodeData, pNodeData, sizeof(NodeData));
pChildNodeData->ulFlags |= fInfoNode;
ptctrl->SetItemData(hItemChild, (DWORD_PTR)pChildNodeData);
wsprintf(nodeTitle, L"Count: %u", pSBlock->cEnt);
hItemChild = ptctrl->InsertItem(nodeTitle, parent);
pChildNodeData = new NodeData;
memcpy(pChildNodeData, pNodeData, sizeof(NodeData));
pChildNodeData->ulFlags |= fInfoNode;
ptctrl->SetItemData(hItemChild, (DWORD_PTR)pChildNodeData);
if(pSBlock->cLevel > 0)
{
SIENTRY * siEntry = pSBlock->rgsi;
for(UINT i = 0; i < SBIEnt(*pSBlock, cbUnaligned); i++, siEntry++)
{
wsprintf(nodeTitle, L"NID (Key): 0x%I64X, BID: 0x%I64X", siEntry->nid, siEntry->bid);
hItemChild = ptctrl->InsertItem(nodeTitle, parent);
pChildNodeData = new NodeData;
pChildNodeData->bref.bid = siEntry->bid;
pChildNodeData->bref.ib = 0;
pChildNodeData->btkey = siEntry->nid;
pChildNodeData->cb = 0;
pChildNodeData->nid = 0;
pChildNodeData->ulFlags = aBrowseBBT;
if(pSBlock->cLevel == 1) // child is a leaf page
{
ptctrl->SetItemImage(hItemChild, iconLeafPage, iconLeafPage);
}
else // child is another non-leaf page
{
ptctrl->SetItemImage(hItemChild, iconPage, iconPage);
}
ptctrl->SetItemData(hItemChild, (DWORD_PTR)pChildNodeData);
AddFalseChild(ptctrl, hItemChild);
}
}
else
{
// this is a leaf page, add nodes as subnodes
SLENTRY * slEntry = pSBlock->rgsl;
BOOL fGreatSuccess;
HTREEITEM hItemChildChild = NULL;
const WCHAR * pNidName;
for(UINT i = 0; i < SBLEnt(*pSBlock, cbUnaligned); i++, slEntry++)
{
// Add the subnode NID
fGreatSuccess = s_nidToString.Lookup((NID)slEntry->nid, pNidName);
wsprintf(nodeTitle, L"NID: 0x%X (%s)", slEntry->nid, fGreatSuccess ? pNidName : TYPESTRINGFROMNID(slEntry->nid));
hItemChild = ptctrl->InsertItem(nodeTitle, parent);
pChildNodeData = new NodeData;
pChildNodeData->bref.bid = slEntry->bidData;
pChildNodeData->ulFlags = aBrowseBBT | fChildrenLoaded;
pChildNodeData->btkey = slEntry->nid;
pChildNodeData->nid = 0;
ptctrl->SetItemData(hItemChild, (DWORD_PTR)pChildNodeData);
ptctrl->SetItemImage(hItemChild, ICONFROMNID(slEntry->nid), ICONFROMNID(slEntry->nid));
// Add the data and subnodes BIDs as children
wsprintf(nodeTitle, L"Data BID: 0x%I64X", slEntry->bidData);
hItemChildChild = ptctrl->InsertItem(nodeTitle, hItemChild);
pChildNodeData = new NodeData;
pChildNodeData->bref.bid = slEntry->bidData;
pChildNodeData->nid = 0;
pChildNodeData->ulFlags = aBrowseBBT | fChildrenLoaded | fInfoNode;
ptctrl->SetItemData(hItemChildChild, (DWORD_PTR)pChildNodeData);
wsprintf(nodeTitle, L"Subnodes BID: 0x%I64X", slEntry->bidSub);
hItemChildChild = ptctrl->InsertItem(nodeTitle, hItemChild);
pChildNodeData = new NodeData;
pChildNodeData->bref.bid = slEntry->bidSub;
pChildNodeData->nid = 0;
pChildNodeData->ulFlags = aBrowseBBT | fChildrenLoaded | fInfoNode;
ptctrl->SetItemData(hItemChildChild, (DWORD_PTR)pChildNodeData);
}
if(fValid)
ptctrl->SetItemImage(parent, iconLeafPage, iconLeafPage);
}
pNodeData->ulFlags |= fChildrenLoaded;
}
delete [] pBuffer;
}
// Because node expansion (the trigger to add BTNodeChildren) is either manual
// or otherwise guarded, we don't action on bad data here
void NDBViewer::AddBTNodeChildren(CTreeCtrl *ptctrl, HTREEITEM hItem)
{
PAGETRAILER pt;
BTPAGE page;
DWORD dwCRC;
WORD sig;
bool fCorrectType;
bool fCRCPass;
bool fBeforeEof;
bool fSigMatch;
bool fValid;
HTREEITEM hItemChild = NULL;
WCHAR nodeTitle[255];
NodeData * pNodeData = (NodeData *)ptctrl->GetItemData(hItem);
NodeData * pChildNodeData = NULL;
if(pNodeData && !(pNodeData->ulFlags & fChildrenLoaded))
{
RemoveFalseChild(ptctrl, hItem);
// read in the page
ReadPage((BYTE*)&page, sizeof(page), &pt, pNodeData->bref.ib);
// validate
dwCRC = ComputeCRC(&page, sizeof(page));
sig = ComputeSig(pNodeData->bref.ib, pNodeData->bref.bid);
fCRCPass = (dwCRC == pt.dwCRC);
fSigMatch = (sig == pt.wSig);
fBeforeEof = (pNodeData->bref.ib + sizeof(page) < GetFileEOF());
fCorrectType = (pt.ptype == pt.ptypeRepeat);
fValid = (fCRCPass && fSigMatch && fCorrectType && fBeforeEof);
// add validation subnodes if necessary
if(!fValid)
{
ptctrl->SetItemImage(hItem, iconCorrupt, iconCorrupt);
pNodeData->ulFlags |= errCRCFailed;
if(!fBeforeEof)
{
hItemChild = ptctrl->InsertItem(L"After EOF");
pChildNodeData = new NodeData;
memcpy(pChildNodeData, pNodeData, sizeof(NodeData));
pChildNodeData->ulFlags |= fInfoNode;
ptctrl->SetItemData(hItemChild, (DWORD_PTR)pChildNodeData);
}
wsprintf(nodeTitle, L"CRC %s", fCRCPass ? L"Valid" : L"Invalid");
hItemChild = ptctrl->InsertItem(nodeTitle, hItem);
pChildNodeData = new NodeData;
memcpy(pChildNodeData, pNodeData, sizeof(NodeData));
pChildNodeData->ulFlags |= fInfoNode;
ptctrl->SetItemData(hItemChild, (DWORD_PTR)pChildNodeData);
wsprintf(nodeTitle, L"PType %s (0x%X)", fCorrectType ? L"Valid" : L"Invalid", pt.ptype);
hItemChild = ptctrl->InsertItem(nodeTitle, hItem);
pChildNodeData = new NodeData;
memcpy(pChildNodeData, pNodeData, sizeof(NodeData));
pChildNodeData->ulFlags |= fInfoNode;
ptctrl->SetItemData(hItemChild, (DWORD_PTR)pChildNodeData);
wsprintf(nodeTitle, L"Sig %s (0x%X)", fSigMatch ? L"Valid" : L"Invalid", pt.wSig);
hItemChild = ptctrl->InsertItem(nodeTitle, hItem);
pChildNodeData = new NodeData;
memcpy(pChildNodeData, pNodeData, sizeof(NodeData));
pChildNodeData->ulFlags |= fInfoNode;
ptctrl->SetItemData(hItemChild, (DWORD_PTR)pChildNodeData);
}
// add BTPage specific subnodes
wsprintf(nodeTitle, L"Depth: %u", page.cLevel);
hItemChild = ptctrl->InsertItem(nodeTitle, hItem);
pChildNodeData = new NodeData;
memcpy(pChildNodeData, pNodeData, sizeof(NodeData));
pChildNodeData->ulFlags |= fInfoNode;
ptctrl->SetItemData(hItemChild, (DWORD_PTR)pChildNodeData);
wsprintf(nodeTitle, L"Count: %u", page.cEnt);
hItemChild = ptctrl->InsertItem(nodeTitle, hItem);
pChildNodeData = new NodeData;
memcpy(pChildNodeData, pNodeData, sizeof(NodeData));
pChildNodeData->ulFlags |= fInfoNode;
ptctrl->SetItemData(hItemChild, (DWORD_PTR)pChildNodeData);
if(page.cLevel > 0)
{
// add subpages
BTENTRY *pbte = (BTENTRY*)(page.rgbte);
for(int i = 0; i < (page.cEnt < cBTEntMax ? page.cEnt : (int)cBTEntMax); i++, pbte++)
{
NodeData * pNodeData = NULL;
wsprintf(nodeTitle, L"BTKey: 0x%I64X, Page BID: 0x%I64X, IB: %I64u", pbte->btkey, pbte->bref.bid, pbte->bref.ib);
hItemChild = ptctrl->InsertItem(nodeTitle, hItem);
pNodeData = new NodeData;
pNodeData->cb = 512;
pNodeData->nid = 0;
pNodeData->bref = pbte->bref;
pNodeData->btkey = pbte->btkey;
pNodeData->ulFlags = aOpenBTPage;
if(page.cLevel == 1) // child is a leaf page
{
ptctrl->SetItemImage(hItemChild, iconLeafPage, iconLeafPage);
}
else // child is another non-leaf page
{
ptctrl->SetItemImage(hItemChild, iconPage, iconPage);
}
ptctrl->SetItemData(hItemChild, (DWORD_PTR)pNodeData);
AddFalseChild(ptctrl, hItemChild);
}
}
else
{
// this is a leaf page - add the data in the page as subnodes
if(pt.ptype == ptypeNBT)
{
AddNBTLeafNodes(ptctrl, hItem, page);
}
else
{
AddBBTLeafNodes(ptctrl, hItem, page);
}
if(fValid)
ptctrl->SetItemImage(hItem, iconLeafPage, iconLeafPage);
}
pNodeData->ulFlags |= fChildrenLoaded;
}
}
void NDBViewer::AddNBTLeafNodes(CTreeCtrl* ptctrl, HTREEITEM parent, const BTPAGE& btpage)
{
WCHAR nodeTitle[255];
BOOL fGreatSuccess = FALSE;
const WCHAR * pNidName;
HTREEITEM hItem = NULL;
HTREEITEM hItemChild = NULL;
NBTENTRY *pnbtEntry = (NBTENTRY*)(btpage.rgbte);
NodeData * pNodeData = NULL;
for(UINT i = 0; i < NBTEnt(btpage); i++, pnbtEntry++)
{
// add this entry
fGreatSuccess = s_nidToString.Lookup((NID)pnbtEntry->nid, pNidName);
wsprintf(nodeTitle, L"NID: 0x%I64X (%s)", pnbtEntry->nid, fGreatSuccess ? pNidName : TYPESTRINGFROMNID(pnbtEntry->nid));
hItem = ptctrl->InsertItem(nodeTitle, parent);
pNodeData = new NodeData;
pNodeData->nid = (NID)pnbtEntry->nid;
pNodeData->bref.bid = pnbtEntry->bidData;
pNodeData->ulFlags = aBrowseBBT | fChildrenLoaded;
pNodeData->btkey = pnbtEntry->nid;
ptctrl->SetItemData(hItem, (DWORD_PTR)pNodeData);
ptctrl->SetItemImage(hItem, ICONFROMNID(pnbtEntry->nid), ICONFROMNID(pnbtEntry->nid));
// add information about this entry
wsprintf(nodeTitle, L"Data BID: 0x%I64X", pnbtEntry->bidData);
hItemChild = ptctrl->InsertItem(nodeTitle, hItem);
pNodeData = new NodeData;
pNodeData->bref.bid = pnbtEntry->bidData;
pNodeData->nid = (NID)pnbtEntry->nid;
pNodeData->ulFlags = aBrowseBBT | fChildrenLoaded | fInfoNode;
ptctrl->SetItemData(hItemChild, (DWORD_PTR)pNodeData);
wsprintf(nodeTitle, L"Subnodes BID: 0x%I64X", pnbtEntry->bidSub);
hItemChild = ptctrl->InsertItem(nodeTitle, hItem);
pNodeData = new NodeData;
pNodeData->bref.bid = pnbtEntry->bidSub;
pNodeData->nid = (NID)pnbtEntry->nid;
pNodeData->ulFlags = aBrowseBBT | fChildrenLoaded | fInfoNode;
ptctrl->SetItemData(hItemChild, (DWORD_PTR)pNodeData);
if(pnbtEntry->nidParent)
{
fGreatSuccess = s_nidToString.Lookup((NID)pnbtEntry->nidParent, pNidName);
wsprintf(nodeTitle, L"Parent NID: 0x%X (%s)", pnbtEntry->nidParent, fGreatSuccess ? pNidName : TYPESTRINGFROMNID(pnbtEntry->nidParent));
}
else
{
wsprintf(nodeTitle, L"Parent NID: 0x0");
}
hItemChild = ptctrl->InsertItem(nodeTitle, hItem);
pNodeData = new NodeData;
pNodeData->nid = pnbtEntry->nidParent;
pNodeData->ulFlags = aBrowseNBT | fChildrenLoaded | fInfoNode;
ptctrl->SetItemData(hItemChild, (DWORD_PTR)pNodeData);
}
}
void NDBViewer::AddBBTLeafNodes(CTreeCtrl* ptctrl, HTREEITEM parent, const BTPAGE& btpage)
{
WCHAR nodeTitle[255];
HTREEITEM hItem = NULL;
HTREEITEM hItemChild = NULL;
BBTENTRY *pbbtEntry = (BBTENTRY*)(btpage.rgbte);
NodeData * pNodeData = NULL;
for(UINT i = 0; i < BBTEnt(btpage); i++, pbbtEntry++)
{
// add this entry
wsprintf(nodeTitle, L"BID: 0x%I64X, IB: %I64u", pbbtEntry->bref.bid, pbbtEntry->bref.ib);
hItem = ptctrl->InsertItem(nodeTitle, parent);
pNodeData = new NodeData;
pNodeData->bref = pbbtEntry->bref;
pNodeData->nid = 0;
pNodeData->cb = pbbtEntry->cb;
pNodeData->btkey = pbbtEntry->bref.bid;
pNodeData->ulFlags = aOpenBlock | fChildrenLoaded;
ptctrl->SetItemImage(hItem, BIDIsInternal(pbbtEntry->bref.bid) ? iconInternalBlock : iconBlock, BIDIsInternal(pbbtEntry->bref.bid) ? iconInternalBlock : iconBlock);
ptctrl->SetItemData(hItem, (DWORD_PTR)pNodeData);
// add information about this entry
wsprintf(nodeTitle, L"Size: %u (%u)", pbbtEntry->cb, CbAlignDisk(pbbtEntry->cb));
hItemChild = ptctrl->InsertItem(nodeTitle, hItem);
pNodeData = new NodeData;
pNodeData->bref = pbbtEntry->bref;
pNodeData->nid = 0;
pNodeData->cb = pbbtEntry->cb;
pNodeData->ulFlags = aOpenBlock | fChildrenLoaded | fInfoNode;
ptctrl->SetItemData(hItemChild, (DWORD_PTR)pNodeData);
wsprintf(nodeTitle, L"Ref Count: %u", pbbtEntry->cRef);
hItemChild = ptctrl->InsertItem(nodeTitle, hItem);
pNodeData = new NodeData;
pNodeData->bref = pbbtEntry->bref;
pNodeData->nid = 0;
pNodeData->cb = pbbtEntry->cb;
pNodeData->ulFlags = aBrowseRefs | fChildrenLoaded | fInfoNode;
ptctrl->SetItemData(hItemChild, (DWORD_PTR)pNodeData);
}
}
void NDBViewer::ExpandSBlockNode(CTreeCtrl* ptctrl, HTREEITEM hItem)
{
AddSBlockChildren(ptctrl, hItem);
}
void NDBViewer::DeleteNode(CTreeCtrl* ptctrl, HTREEITEM hItem)
{
delete (NodeData *)ptctrl->GetItemData(hItem);
}
bool NDBViewer::LookupBID(BID bid, BREF& bref, CB& cb, UINT& cRef)
{
BTPAGE btpage;
ReadPage((BYTE*)&btpage, sizeof(btpage), NULL, m_header.root.brefBBT.ib);
return LookupBIDImpl(&btpage, BIDStrip(bid), bref, cb, cRef);
}
bool NDBViewer::LookupNID(NID nid, BID& data, BID& sub)
{
BTPAGE btpage;
ReadPage((BYTE*)&btpage, sizeof(btpage), NULL, m_header.root.brefNBT.ib);
return LookupNIDImpl(&btpage, nid, data, sub);
}
CB NDBViewer::XBGetSize(BID bid)
{
CB cb = 0;
UINT cRef = 0;
BREF bref;
if(LookupBID(bid, bref, cb, cRef))
{
// If this is an XBlock, read the header
if(!BIDIsExternal(bid))
{
XBLOCK xb;
ReadData((BYTE*)&xb, sizeof(XBLOCK), NULL, 0, bref.ib, sizeof(XBLOCK));
cb = xb.lcbTotal;
}
}
return cb;
}
bool NDBViewer::LookupSubnodeNID(NID nidParent, NID nidSubnode, BID& data, BID& sub)
{
BID parentData = 0;
BID parentSub = 0;
BREF bref;
CB cb;
UINT cRef;
BYTE * pBuffer = 0;
BLOCKTRAILER bt;
bool fSuccess = false;
SBLOCK * pSBlock = 0;
if(nidParent == 0)
return LookupNID(nidSubnode, data, sub);
if(!LookupNID(nidParent, parentData, parentSub))
return false;
if(!LookupBID(parentSub, bref, cb, cRef))
return false;
if(FValidBlock(bref.ib, cb, bref.bid))
{
pBuffer = new BYTE[BBufferSize((UINT)cb)];
pSBlock = (SBLOCK*)pBuffer;
ReadBlock(pBuffer, (UINT)BBufferSize((UINT)cb), &bt, bref.ib, CbAlignDisk(cb));
fSuccess = LookupSubnodeNIDImpl(pSBlock, cb, nidSubnode, data, sub);
delete [] pBuffer;
}
else
{
fSuccess = false;
}
return fSuccess;
}
bool NDBViewer::LookupSubnodeNIDImpl(SBLOCK * pSBlock, CB cbBlocksize, NID nidSubnode, BID& data, BID& sub)
{
if(pSBlock->cLevel > 0)
{
// recursively call down to the next block
SIENTRY * siEntry = pSBlock->rgsi;
SIENTRY * siPrevious = NULL;
for(UINT i = 0; i < SBIEnt(*pSBlock, BBufferSize((UINT)cbBlocksize)); i++, siEntry++)
{
if(siEntry->nid > nidSubnode)
break;
siPrevious = siEntry;
}
if(siPrevious)
{
BREF bref;
CB cb;
UINT cRef;
BYTE * pBuffer = NULL;
SBLOCK * pSBlockSub = NULL;
if(!LookupBID(siPrevious->bid, bref, cb, cRef))
return false;
if(FValidBlock(bref.ib, cb, bref.bid))
{
pBuffer = new BYTE[BBufferSize((UINT)cb)];
pSBlockSub = (SBLOCK*)pBuffer;
BLOCKTRAILER bt;
ReadBlock(pBuffer, (UINT)BBufferSize((UINT)cb), &bt, bref.ib, CbAlignDisk(cb));
return LookupSubnodeNIDImpl(pSBlockSub, cb, nidSubnode, data, sub);
}
else
{
return false;
}
}
}
else
{
// search this block for the subnode
SLENTRY * slEntry = pSBlock->rgsl;
for(UINT i = 0; i < SBLEnt(*pSBlock, BBufferSize((UINT)cbBlocksize)); i++, slEntry++)
{
if(slEntry->nid == nidSubnode)
{
data = slEntry->bidData;
sub = slEntry->bidSub;
return true;
}
if(slEntry->nid > nidSubnode)
return false;
}
}
return false;
}
// To guard against infinite recursion, we only recurse on valid pages
bool NDBViewer::LookupBIDImpl(BTPAGE * pPage, BID bid, BREF& bref, CB& cb, UINT& cRefs)
{
if(pPage->cLevel > 0)
{
// recursvely call down to the next page
BTENTRY *pbtEntry = (BTENTRY*)pPage->rgbte;
BTENTRY *pbtEntryPrev = NULL;
for(UINT i = 0; i < BTEnt(*pPage); i++, pbtEntry++)
{
if(pbtEntry->btkey > bid)
break;
pbtEntryPrev = pbtEntry;
}
if(pbtEntryPrev)
{
BTPAGE btPage;
ReadPage((BYTE*)&btPage, sizeof(btPage), NULL, pbtEntryPrev->bref.ib);
if(FValidPage(pbtEntryPrev->bref.ib, ptypeBBT))
return LookupBIDImpl(&btPage, bid, bref, cb, cRefs);
}
}
else
{
BBTENTRY *pbbtEntry = (BBTENTRY*)(pPage->rgbte);
for(UINT i = 0; i < BBTEnt(*pPage); i++, pbbtEntry++)
{
if(pbbtEntry->bref.bid == bid)
{
bref.bid = pbbtEntry->bref.bid;
bref.ib = pbbtEntry->bref.ib;
cb = pbbtEntry->cb;
cRefs = pbbtEntry->cRef;
return true;
}
if(pbbtEntry->bref.bid > bid)
return false;
}
}
return false;
}
// To guard against infinite recursion, we only recurse on valid pages
bool NDBViewer::LookupNIDImpl(BTPAGE * pPage, NID nid, BID& data, BID& sub)
{
if(pPage->cLevel > 0)