WinHeap.H

  1 // file winheap.h
  2 typedef void VOID;
  3 typedef unsigned __int8  UINT8;
  4 typedef unsigned __int16 UINT16;
  5 typedef __int32 LONG32;
  6 typedef unsigned __int32 ULONG32;
  7 typedef unsigned __int64 UINT64;
  8 
  9 // pseudo struct, for the PEB heap list
 10 struct HEAPTABLE {
 11     struct _HEAP *list[16];
 12 };
 13 
 14 struct _LIST_ENTRY {
 15     struct _LIST_ENTRY *FLink;
 16     struct _LIST_ENTRY *BLink;
 17 };
 18 
 19 union _SLIST_HEADER {
 20     struct _LIST_ENTRY le;
 21 };
 22 
 23 typedef struct _HEAP_ENTRY             // 7 elements, 0x8 bytes (sizeof)
 24 {
 25 //              union                              // 2 elements, 0x4 bytes (sizeof)
 26 //              {
 27 //                  struct                         // 2 elements, 0x4 bytes (sizeof)
 28 //                  {
 29 /*0x000*/             UINT16       Size;
 30 /*0x002*/             UINT16       PreviousSize;
 31 //                  };
 32 ///*0x000*/         VOID*        SubSegmentCode;
 33 //              };
 34 /*0x004*/     UINT8        SmallTagIndex;
 35 /*0x005*/     UINT8        Flags;
 36 /*0x006*/     UINT8        UnusedBytes;
 37 /*0x007*/     UINT8        SegmentIndex;
 38 }HEAP_ENTRY, *PHEAP_ENTRY;
 39 
 40 typedef struct _HEAP                                         // 36 elements, 0x588 bytes (sizeof)
 41 {
 42 /*0x000*/     struct _HEAP_ENTRY Entry;                                // 7 elements, 0x8 bytes (sizeof)
 43 /*0x008*/     ULONG32      Signature;
 44 /*0x00C*/     ULONG32      Flags;
 45 /*0x010*/     ULONG32      ForceFlags;
 46 /*0x014*/     ULONG32      VirtualMemoryThreshold;
 47 /*0x018*/     ULONG32      SegmentReserve;
 48 /*0x01C*/     ULONG32      SegmentCommit;
 49 /*0x020*/     ULONG32      DeCommitFreeBlockThreshold;
 50 /*0x024*/     ULONG32      DeCommitTotalFreeThreshold;
 51 /*0x028*/     ULONG32      TotalFreeSize;
 52 /*0x02C*/     ULONG32      MaximumAllocationSize;
 53 /*0x030*/     UINT16       ProcessHeapsListIndex;
 54 /*0x032*/     UINT16       HeaderValidateLength;
 55 /*0x034*/     VOID*        HeaderValidateCopy;
 56 /*0x038*/     UINT16       NextAvailableTagIndex;
 57 /*0x03A*/     UINT16       MaximumTagIndex;
 58 /*0x03C*/     struct _HEAP_TAG_ENTRY* TagEntries;
 59 /*0x040*/     struct _HEAP_UCR_SEGMENT* UCRSegments;
 60 /*0x044*/     struct _HEAP_UNCOMMMTTED_RANGE* UnusedUnCommittedRanges;
 61 /*0x048*/     ULONG32      AlignRound;
 62 /*0x04C*/     ULONG32      AlignMask;
 63 /*0x050*/     struct _LIST_ENTRY VirtualAllocdBlocks;                  // 2 elements, 0x8 bytes (sizeof)
 64 /*0x058*/     struct _HEAP_SEGMENT* Segments[64];
 65     union                                                    // 2 elements, 0x10 bytes (sizeof)
 66     {
 67 /*0x158*/         ULONG32      FreeListsInUseUlong[4];
 68 /*0x158*/         UINT8        FreeListsInUseBytes[16];
 69     }u;
 70     union                                                    // 2 elements, 0x2 bytes (sizeof)
 71     {
 72 /*0x168*/         UINT16       FreeListsInUseTerminate;
 73 /*0x168*/         UINT16       DecommitCount;
 74     }u2;
 75 /*0x16A*/     UINT16       AllocatorBackTraceIndex;
 76 /*0x16C*/     ULONG32      NonDedicatedListLength;
 77 /*0x170*/     VOID*        LargeBlocksIndex;
 78 /*0x174*/     struct _HEAP_PSEUDO_TAG_ENTRY* PseudoTagEntries;
 79 /*0x178*/     struct _LIST_ENTRY FreeLists[128];
 80 /*0x578*/     struct _HEAP_LOCK* LockVariable;
 81 ///*0x57C*/     FUNCT_0049_0C5F_CommitRoutine* CommitRoutine;
 82 /*0x57C*/     VOID* CommitRoutine;
 83 /*0x580*/     VOID*        FrontEndHeap;
 84 /*0x584*/     UINT16       FrontHeapLockCount;
 85 /*0x586*/     UINT8        FrontEndHeapType;
 86 /*0x587*/     UINT8        LastSegmentIndex;
 87 }HEAP, *PHEAP;
 88 
 89 typedef struct _HEAP_UNCOMMMTTED_RANGE    // 4 elements, 0x10 bytes (sizeof)
 90 {
 91 /*0x000*/     struct _HEAP_UNCOMMMTTED_RANGE* Next;
 92 /*0x004*/     ULONG32      Address;
 93 /*0x008*/     ULONG32      Size;
 94 /*0x00C*/     ULONG32      filler;
 95 }HEAP_UNCOMMMTTED_RANGE, *PHEAP_UNCOMMMTTED_RANGE;
 96 
 97 typedef struct _HEAP_ENTRY_EXTRA                  // 4 elements, 0x8 bytes (sizeof)
 98 {
 99     union                                         // 2 elements, 0x8 bytes (sizeof)
100     {
101         struct                                    // 3 elements, 0x8 bytes (sizeof)
102         {
103 /*0x000*/             UINT16       AllocatorBackTraceIndex;
104 /*0x002*/             UINT16       TagIndex;
105 /*0x004*/             ULONG32      Settable;
106         };
107 /*0x000*/         UINT64       ZeroInit;
108     };
109 }HEAP_ENTRY_EXTRA, *PHEAP_ENTRY_EXTRA;
110 
111 typedef struct _HEAP_VIRTUAL_ALLOC_ENTRY // 5 elements, 0x20 bytes (sizeof)
112 {
113 /*0x000*/     struct _LIST_ENTRY Entry;            // 2 elements, 0x8 bytes (sizeof)
114 /*0x008*/     struct _HEAP_ENTRY_EXTRA ExtraStuff; // 4 elements, 0x8 bytes (sizeof)
115 /*0x010*/     ULONG32      CommitSize;
116 /*0x014*/     ULONG32      ReserveSize;
117 /*0x018*/     struct _HEAP_ENTRY BusyBlock;        // 7 elements, 0x8 bytes (sizeof)
118 }HEAP_VIRTUAL_ALLOC_ENTRY, *PHEAP_VIRTUAL_ALLOC_ENTRY;
119 
120 
121 typedef struct _HEAP_FREE_ENTRY        // 8 elements, 0x10 bytes (sizeof)
122 {
123     union                              // 2 elements, 0x4 bytes (sizeof)
124     {
125         struct                         // 2 elements, 0x4 bytes (sizeof)
126         {
127 /*0x000*/             UINT16       Size;
128 /*0x002*/             UINT16       PreviousSize;
129         };
130 /*0x000*/         VOID*        SubSegmentCode;
131     };
132 /*0x004*/     UINT8        SmallTagIndex;
133 /*0x005*/     UINT8        Flags;
134 /*0x006*/     UINT8        UnusedBytes;
135 /*0x007*/     UINT8        SegmentIndex;
136 /*0x008*/     struct _LIST_ENTRY FreeList;       // 2 elements, 0x8 bytes (sizeof)
137 }HEAP_FREE_ENTRY, *PHEAP_FREE_ENTRY;
138 
139 typedef struct _HEAP_LOOKASIDE       // 10 elements, 0x30 bytes (sizeof)
140 {
141 /*0x000*/     union _SLIST_HEADER ListHead;    // 4 elements, 0x8 bytes (sizeof)
142 /*0x008*/     UINT16       Depth;
143 /*0x00A*/     UINT16       MaximumDepth;
144 /*0x00C*/     ULONG32      TotalAllocates;
145 /*0x010*/     ULONG32      AllocateMisses;
146 /*0x014*/     ULONG32      TotalFrees;
147 /*0x018*/     ULONG32      FreeMisses;
148 /*0x01C*/     ULONG32      LastTotalAllocates;
149 /*0x020*/     ULONG32      LastAllocateMisses;
150 /*0x024*/     ULONG32      Counters[2];
151 /*0x02C*/     UINT8        _PADDING0_[0x4];
152 }HEAP_LOOKASIDE, *PHEAP_LOOKASIDE;
153 
154 struct FRONTEND1 {
155     struct _HEAP_LOOKASIDE l[128];
156 };
157 
158 typedef struct _HEAP_SEGMENT                           // 15 elements, 0x3C bytes (sizeof)
159 {
160 /*0x000*/     struct _HEAP_ENTRY Entry;                          // 7 elements, 0x8 bytes (sizeof)
161 /*0x008*/     ULONG32      Signature;
162 /*0x00C*/     ULONG32      Flags;
163 /*0x010*/     struct _HEAP* Heap;
164 /*0x014*/     ULONG32      LargestUnCommittedRange;
165 /*0x018*/     VOID*        BaseAddress;
166 /*0x01C*/     ULONG32      NumberOfPages;
167 /*0x020*/     struct _HEAP_ENTRY* FirstEntry;
168 /*0x024*/     struct _HEAP_ENTRY* LastValidEntry;
169 /*0x028*/     ULONG32      NumberOfUnCommittedPages;
170 /*0x02C*/     ULONG32      NumberOfUnCommittedRanges;
171 /*0x030*/     struct _HEAP_UNCOMMMTTED_RANGE* UnCommittedRanges;
172 /*0x034*/     UINT16       AllocatorBackTraceIndex;
173 /*0x036*/     UINT16       Reserved;
174 /*0x038*/     struct _HEAP_ENTRY* LastEntryInSegment;
175 }HEAP_SEGMENT, *PHEAP_SEGMENT;