source: trunk/src/kernel32/winimagepeldr.h@ 7029

Last change on this file since 7029 was 5914, checked in by phaller, 24 years ago

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File size: 4.9 KB
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1/* $Id: winimagepeldr.h,v 1.16 2001-06-06 10:01:48 phaller Exp $ */
2
3/*
4 * Win32 PE loader Image base class
5 *
6 * Copyright 1998-1999 Sander van Leeuwen (sandervl@xs4all.nl)
7 *
8 *
9 * Project Odin Software License can be found in LICENSE.TXT
10 *
11 */
12#ifndef __WINIMAGEPELDR_H__
13#define __WINIMAGEPELDR_H__
14
15#include <winimagebase.h>
16
17#define SINGLE_PAGE 0 //commit single page
18#define COMPLETE_SECTION 1 //commit entire section
19#define SECTION_PAGES 2 //commit default nr of pages
20
21#define DEFAULT_NR_PAGES 16 //default nr of pages to commit during exception
22
23//SvL: To load a dll/exe for i.e. getting a single resource (GetVersionSize/Resource)
24#define FLAG_PELDR_LOADASDATAFILE 1 //also implies FLAG_PELDR_SKIPIMPORTS
25#define FLAG_PELDR_SKIPIMPORTS 2
26
27//SvL: Amount of memory the peldr dll reserves for win32 exes without fixups
28//(most of them need to be loaded at 4 MB; except MS Office apps of course)
29#define PELDR_RESERVEDMEMSIZE 32*1024*1024
30
31#define ERROR_INTERNAL 1
32
33#define SECTION_CODE 1
34#define SECTION_INITDATA 2
35#define SECTION_UNINITDATA 4
36#define SECTION_READONLYDATA 8
37#define SECTION_IMPORT 16
38#define SECTION_RESOURCE 32
39#define SECTION_RELOC 64
40#define SECTION_EXPORT 128
41#define SECTION_DEBUG 256
42#define SECTION_TLS 512
43
44#define PAGE_SIZE 4096
45
46typedef struct {
47 ULONG rawoffset;
48 ULONG rawsize;
49 ULONG virtaddr;
50 ULONG realvirtaddr; //as allocated in OS/2
51 ULONG virtualsize;
52 ULONG type;
53 ULONG pageflags;
54 ULONG flags; //psh[i].Characteristics
55} Section;
56
57typedef struct {
58 ULONG virtaddr;
59 ULONG ordinal;
60 ULONG nlength;
61 char name[4];
62} NameExport;
63
64typedef struct {
65 ULONG virtaddr;
66 ULONG ordinal;
67} OrdExport;
68
69class Win32DllBase;
70class Win32MemMap;
71
72class Win32PeLdrImage : public virtual Win32ImageBase
73{
74public:
75 Win32PeLdrImage(char *szFileName, BOOL isExe);
76virtual ~Win32PeLdrImage();
77
78 //reservedMem is address of memory reserved in peldr.dll (allocated before
79 //any dlls are loaded, so that exes without fixups can be loaded at a low
80 //address)
81 virtual BOOL init(ULONG reservedMem);
82
83 virtual BOOL insideModule(ULONG address);
84 virtual BOOL insideModuleCode(ULONG address);
85
86 virtual ULONG getApi(char *name);
87 virtual ULONG getApi(int ordinal);
88
89 virtual ULONG getImageSize();
90
91 //Returns required OS version for this image
92 virtual ULONG getVersion();
93
94 //tell loader to only process resources and ignore the rest
95 void setLoadAsDataFile() { dwFlags |= FLAG_PELDR_LOADASDATAFILE; };
96 void disableImportHandling() { dwFlags |= FLAG_PELDR_SKIPIMPORTS; };
97
98 //commits image page(s) when an access violation exception is dispatched
99 BOOL commitPage(ULONG virtAddress, BOOL fWriteAccess, int fPageCmd = SECTION_PAGES);
100
101protected:
102 void StoreImportByOrd(Win32ImageBase *WinImage, ULONG ordinal, ULONG impaddr);
103 void StoreImportByName(Win32ImageBase *WinImage, char *impname, ULONG impaddr);
104
105 void addSection(ULONG type, ULONG rawoffset, ULONG rawsize, ULONG virtaddress, ULONG virtsize, ULONG flags);
106 BOOL allocSections(ULONG reservedMem);
107 BOOL allocFixedMem(ULONG reservedMem);
108 Section *findSection(ULONG type);
109 Section *findSectionByAddr(ULONG addr);
110 Section *findSectionByOS2Addr(ULONG addr);
111 Section *findPreviousSectionByOS2Addr(ULONG addr);
112
113 BOOL setMemFlags();
114 BOOL setFixups(PIMAGE_BASE_RELOCATION prel);
115 BOOL setFixups(ULONG virtAddress, ULONG size);
116 void AddOff32Fixup(ULONG fixupaddr);
117 void AddOff16Fixup(ULONG fixupaddr, BOOL fHighFixup);
118
119 BOOL processImports(char *win32file);
120
121 BOOL processExports(char *win32file);
122 void AddNameExport(ULONG virtaddr, char *apiname, ULONG ordinal, BOOL fAbsoluteAddress=FALSE);
123 void AddOrdExport(ULONG virtaddr, ULONG ordinal, BOOL fAbsoluteAddress=FALSE);
124 BOOL AddForwarder(ULONG virtaddr, char *apiname, ULONG ordinal);
125
126Win32DllBase *loadDll(char *pszCurModule);
127
128 IMAGE_OPTIONAL_HEADER oh;
129 IMAGE_FILE_HEADER fh;
130
131 ULONG nrNameExports, nameExportSize;
132 ULONG nrOrdExports;
133 ULONG nrOrdExportsRegistered;
134 NameExport *nameexports, *curnameexport;
135 OrdExport *ordexports, *curordexport;
136
137 ULONG nrsections, imageSize, imageVirtBase, imageVirtEnd;
138 //OS/2 virtual base address
139 ULONG realBaseAddress;
140 Section *section;
141
142 //internal flags (see FLAGS_PELDR_*)
143 DWORD dwFlags;
144
145 HFILE hFile;
146
147 PIMAGE_BASE_RELOCATION pFixups;
148 DWORD dwFixupSize;
149
150 Win32MemMap *memmap;
151private:
152};
153
154#endif //__WINIMAGEPELDR_H__
155
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