| 1 | /* $Id: ldr.h,v 1.3 1999-10-27 02:02:56 bird Exp $
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| 2 | *
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| 3 | * ldr - loader header file.
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| 4 | *
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| 5 | * Copyright (c) 1999 knut St. osmundsen
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| 6 | *
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| 7 | */
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| 8 |
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| 9 |
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| 10 | #ifndef _ldr_h_
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| 11 | #define _ldr_h_
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| 12 | #ifndef LDR_INCL_INITONLY
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| 13 | /* state variable */
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| 14 | extern BOOL fQAppType;
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| 15 |
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| 16 | /*
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| 17 | * handle state - Array of handle states. Eight state per byte!
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| 18 | */
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| 19 | #define MAX_FILE_HANDLES 0x10000
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| 20 |
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| 21 | extern unsigned char achHandleStates[MAX_FILE_HANDLES/8];
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| 22 |
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| 23 | #define HSTATE_UNUSED 0x00 /* Handle not used (or OS/2). */
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| 24 | #define HSTATE_OS2 0x00 /* OS/2 module filehandle. */
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| 25 | #define HSTATE_OUR 0x01 /* Our module filehandle. */
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| 26 | #define HSTATE_MASK 0xFE
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| 27 | #define HSTATE_UMASK 0x01
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| 28 |
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| 29 | #define GetState(a) (HSTATE_UMASK & (achHandleStates[(a)/8] >> ((a)%8)))
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| 30 | #define SetState(a,b) (achHandleStates[(a)/8] = (achHandleStates[(a)/8] & (HSTATE_MASK << ((a)%8) | HSTATE_MASK >> 8-((a)%8)) | ((b) & 0x1) << ((a)%8)))
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| 31 |
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| 32 |
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| 33 | /*
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| 34 | * Module struct.
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| 35 | */
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| 36 | typedef struct _Module
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| 37 | {
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| 38 | AVLNODECORE coreKey; /* Key is hFile. */
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| 39 | AVLNODECORE coreMTE; /* Key is pMTE. */
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| 40 |
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| 41 | SFN hFile; /* System file number or file handle if you prefer that. */
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| 42 | PMTE pMTE; /* Pointer to MTE if we got one - NULL is allowed. */
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| 43 |
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| 44 | ULONG fFlags; /* Flags. Flags if coreMte is in use and what Data contains. */
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| 45 | union
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| 46 | {
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| 47 | Pe2Lx * pPe2Lx; /* Pointer to a Pe2Lx object. (Win32 executables) */
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| 48 | #if 0
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| 49 | Elf2Lx * pElf2Lx; /* Pointer to a Elf2Lx object. (ELF executables) */
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| 50 | Script * pScript; /* Pointer to a Script object. (Shell scripts) */
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| 51 | Pe * pPe; /* Pointer to a Pe object. (Ring3 loader) */
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| 52 | #endif
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| 53 | void * pv;
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| 54 | } Data; /* Pointer to data. Currently it's allways a Pe2Lx object! */
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| 55 | } MODULE, *PMODULE;
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| 56 |
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| 57 | #define MOD_FLAGS_IN_MTETREE 0x00000010 /* The node is present in the MTE-tree. */
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| 58 | #define MOD_TYPE_MASK 0x0000000F /* Type mask. */
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| 59 | #define MOD_TYPE_PE2LX 0x00000001 /* Pe2Lx module. */
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| 60 | #define MOD_TYPE_ELF2LX 0x00000002 /* Elf2Lx module. */
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| 61 | #define MOD_TYPE_SCRIPT 0x00000003 /* Script module. */
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| 62 | #define MOD_TYPE_PE 0x00000004 /* Pe module. */
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| 63 |
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| 64 |
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| 65 | /*
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| 66 | * Modules operations.
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| 67 | */
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| 68 | PMODULE getModuleBySFN(SFN hFile);
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| 69 | PMODULE getModuleByMTE(PMTE pMTE);
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| 70 | PMODULE getModuleByFilename(PCSZ pszFilename);
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| 71 |
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| 72 | ULONG addModule(SFN hFile, PMTE pMTE, ULONG fFlags, void *pData);
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| 73 | ULONG removeModule(SFN hFile);
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| 74 |
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| 75 | #endif
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| 76 |
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| 77 | /*************/
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| 78 | /* functions */
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| 79 | /*************/
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| 80 | #ifdef __cplusplus
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| 81 | extern "C" {
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| 82 | #endif
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| 83 |
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| 84 | ULONG ldrInit(void);
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| 85 |
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| 86 | #ifdef __cplusplus
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| 87 | }
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| 88 | #endif
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| 89 |
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| 90 | #pragma pack()
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| 91 |
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| 92 | #endif
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