| 1 | /* $Id: winimagepeldr.h,v 1.4 2000-06-27 12:20:46 sandervl Exp $ */
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| 2 |
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| 3 | /*
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| 4 | * Win32 PE loader Image base class
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| 5 | *
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| 6 | * Copyright 1998-1999 Sander van Leeuwen (sandervl@xs4all.nl)
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| 7 | *
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| 8 | *
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| 9 | * Project Odin Software License can be found in LICENSE.TXT
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| 10 | *
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| 11 | */
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| 12 | #ifndef __WINIMAGEPELDR_H__
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| 13 | #define __WINIMAGEPELDR_H__
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| 14 |
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| 15 | #include <winimagebase.h>
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| 16 |
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| 17 | #define SINGLE_PAGE 0 //commit single page
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| 18 | #define COMPLETE_SECTION 1 //commit entire section
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| 19 | #define SECTION_PAGES 2 //commit default nr of pages
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| 20 |
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| 21 | #define DEFAULT_NR_PAGES 16 //default nr of pages to commit during exception
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| 22 |
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| 23 | //SvL: To load a dll/exe for i.e. getting a single resource (GetVersionSize/Resource)
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| 24 | #define REAL_LOAD 0
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| 25 | #define RSRC_LOAD 1
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| 26 |
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| 27 | //SvL: Amount of memory the peldr dll reserves for win32 exes without fixups
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| 28 | //(most of them need to be loaded at 4 MB; except MS Office apps of course)
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| 29 | #define PELDR_RESERVEDMEMSIZE 32*1024*1024
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| 30 |
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| 31 | #define ERROR_INTERNAL 1
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| 32 |
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| 33 | #define SECTION_CODE 1
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| 34 | #define SECTION_INITDATA 2
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| 35 | #define SECTION_UNINITDATA 4
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| 36 | #define SECTION_READONLYDATA 8
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| 37 | #define SECTION_IMPORT 16
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| 38 | #define SECTION_RESOURCE 32
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| 39 | #define SECTION_RELOC 64
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| 40 | #define SECTION_EXPORT 128
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| 41 | #define SECTION_DEBUG 256
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| 42 | #define SECTION_TLS 512
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| 43 |
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| 44 | #define PAGE_SIZE 4096
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| 45 |
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| 46 | #define MAX_SECTION 64 /*PLF Mon 98-02-09 23:47:16*/
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| 47 |
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| 48 | typedef struct {
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| 49 | ULONG rawoffset;
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| 50 | ULONG rawsize;
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| 51 | ULONG virtaddr;
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| 52 | ULONG realvirtaddr; //as allocated in OS/2
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| 53 | ULONG virtualsize;
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| 54 | ULONG type;
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| 55 | ULONG pageflags;
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| 56 | ULONG flags; //psh[i].Characteristics
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| 57 | } Section;
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| 58 |
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| 59 | typedef struct {
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| 60 | ULONG virtaddr;
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| 61 | ULONG ordinal;
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| 62 | ULONG nlength;
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| 63 | char name[4];
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| 64 | } NameExport;
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| 65 |
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| 66 | typedef struct {
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| 67 | ULONG virtaddr;
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| 68 | ULONG ordinal;
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| 69 | } OrdExport;
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| 70 |
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| 71 | class Win32DllBase;
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| 72 | class Win32MemMap;
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| 73 |
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| 74 | class Win32PeLdrImage : public virtual Win32ImageBase
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| 75 | {
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| 76 | public:
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| 77 | Win32PeLdrImage(char *szFileName, BOOL isExe, int loadtype = REAL_LOAD);
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| 78 | virtual ~Win32PeLdrImage();
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| 79 |
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| 80 | //reservedMem is address of memory reserved in peldr.dll (allocated before
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| 81 | //any dlls are loaded, so that exes without fixups can be loaded at a low
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| 82 | //address)
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| 83 | virtual BOOL init(ULONG reservedMem);
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| 84 |
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| 85 | virtual BOOL insideModule(ULONG address);
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| 86 | virtual BOOL insideModuleCode(ULONG address);
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| 87 |
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| 88 | virtual ULONG getApi(char *name);
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| 89 | virtual ULONG getApi(int ordinal);
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| 90 |
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| 91 | virtual ULONG getImageSize();
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| 92 |
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| 93 | //Returns required OS version for this image
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| 94 | virtual ULONG getVersion();
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| 95 |
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| 96 | //commits image page(s) when an access violation exception is dispatched
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| 97 | BOOL commitPage(ULONG virtAddress, BOOL fWriteAccess, int fPageCmd = SECTION_PAGES);
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| 98 |
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| 99 | protected:
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| 100 | void StoreImportByOrd(Win32DllBase *WinDll, ULONG ordinal, ULONG impaddr);
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| 101 | void StoreImportByName(Win32DllBase *WinDll, char *impname, ULONG impaddr);
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| 102 |
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| 103 | void addSection(ULONG type, ULONG rawoffset, ULONG rawsize, ULONG virtaddress, ULONG virtsize, ULONG flags);
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| 104 | BOOL allocSections(ULONG reservedMem);
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| 105 | BOOL allocFixedMem(ULONG reservedMem);
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| 106 | Section *findSection(ULONG type);
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| 107 | Section *findSectionByAddr(ULONG addr);
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| 108 | Section *findSectionByOS2Addr(ULONG addr);
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| 109 | Section *findPreviousSectionByOS2Addr(ULONG addr);
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| 110 |
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| 111 | BOOL setMemFlags();
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| 112 | BOOL setFixups(PIMAGE_BASE_RELOCATION prel);
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| 113 | BOOL setFixups(ULONG virtAddress, ULONG size);
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| 114 | void AddOff32Fixup(ULONG fixupaddr);
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| 115 | void AddOff16Fixup(ULONG fixupaddr, BOOL fHighFixup);
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| 116 |
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| 117 | BOOL processImports(char *win32file);
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| 118 |
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| 119 | BOOL processExports(char *win32file);
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| 120 | void AddNameExport(ULONG virtaddr, char *apiname, ULONG ordinal);
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| 121 | void AddOrdExport(ULONG virtaddr, ULONG ordinal);
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| 122 |
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| 123 | IMAGE_OPTIONAL_HEADER oh;
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| 124 | IMAGE_FILE_HEADER fh;
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| 125 |
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| 126 | ULONG nrNameExports, nameExportSize;
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| 127 | ULONG nrOrdExports;
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| 128 | NameExport *nameexports, *curnameexport;
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| 129 | OrdExport *ordexports, *curordexport;
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| 130 |
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| 131 | ULONG nrsections, imageSize, imageVirtBase, imageVirtEnd;
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| 132 | //OS/2 virtual base address
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| 133 | ULONG realBaseAddress;
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| 134 | Section section[MAX_SECTION];
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| 135 |
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| 136 | ULONG loadType;
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| 137 |
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| 138 | HFILE hFile;
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| 139 |
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| 140 | PIMAGE_BASE_RELOCATION pFixups;
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| 141 | DWORD dwFixupSize;
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| 142 |
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| 143 | Win32MemMap *memmap;
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| 144 | private:
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| 145 | };
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| 146 |
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| 147 | #endif //__WINIMAGEPELDR_H__
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| 148 |
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