/* * VxD emulation * * Copyright 1995 Anand Kumria */ #include #include #include "winbase.h" #include "winuser.h" #include "wine/winbase16.h" #include "wine/winuser16.h" #include "msdos.h" #include "miscemu.h" #include "selectors.h" #include "neexe.h" #include "task.h" #include "process.h" #include "file.h" #include "debug.h" DEFAULT_DEBUG_CHANNEL(vxd) #define VXD_BARF(context,name) \ DUMP( "vxd %s: unknown/not implemented parameters:\n" \ "vxd %s: AX %04x, BX %04x, CX %04x, DX %04x, " \ "SI %04x, DI %04x, DS %04x, ES %04x\n", \ (name), (name), AX_reg(context), BX_reg(context), \ CX_reg(context), DX_reg(context), SI_reg(context), \ DI_reg(context), (WORD)DS_reg(context), (WORD)ES_reg(context) ) static WORD VXD_WinVersion(void) { WORD version = LOWORD(GetVersion16()); return (version >> 8) | (version << 8); } /*********************************************************************** * VXD_VMM */ void VXD_VMM ( CONTEXT *context ) { unsigned service = AX_reg(context); TRACE(vxd,"[%04x] VMM \n", (UINT16)service); switch(service) { case 0x0000: /* version */ AX_reg(context) = VXD_WinVersion(); RESET_CFLAG(context); break; case 0x026d: /* Get_Debug_Flag '/m' */ case 0x026e: /* Get_Debug_Flag '/n' */ AL_reg(context) = 0; RESET_CFLAG(context); break; default: VXD_BARF( context, "VMM" ); } } /*********************************************************************** * VXD_PageFile */ void WINAPI VXD_PageFile( CONTEXT *context ) { unsigned service = AX_reg(context); /* taken from Ralf Brown's Interrupt List */ TRACE(vxd,"[%04x] PageFile\n", (UINT16)service ); switch(service) { case 0x00: /* get version, is this windows version? */ TRACE(vxd,"returning version\n"); AX_reg(context) = VXD_WinVersion(); RESET_CFLAG(context); break; case 0x01: /* get swap file info */ TRACE(vxd,"VxD PageFile: returning swap file info\n"); AX_reg(context) = 0x00; /* paging disabled */ ECX_reg(context) = 0; /* maximum size of paging file */ /* FIXME: do I touch DS:SI or DS:DI? */ RESET_CFLAG(context); break; case 0x02: /* delete permanent swap on exit */ TRACE(vxd,"VxD PageFile: supposed to delete swap\n"); RESET_CFLAG(context); break; case 0x03: /* current temporary swap file size */ TRACE(vxd,"VxD PageFile: what is current temp. swap size\n"); RESET_CFLAG(context); break; case 0x04: /* read or write?? INTERRUP.D */ case 0x05: /* cancel?? INTERRUP.D */ case 0x06: /* test I/O valid INTERRUP.D */ default: VXD_BARF( context, "pagefile" ); break; } } /*********************************************************************** * VXD_Reboot */ void VXD_Reboot ( CONTEXT *context ) { unsigned service = AX_reg(context); TRACE(vxd,"[%04x] VMM \n", (UINT16)service); switch(service) { case 0x0000: /* version */ AX_reg(context) = VXD_WinVersion(); RESET_CFLAG(context); break; default: VXD_BARF( context, "REBOOT" ); } } /*********************************************************************** * VXD_VDD */ void VXD_VDD ( CONTEXT *context ) { unsigned service = AX_reg(context); TRACE(vxd,"[%04x] VDD \n", (UINT16)service); switch(service) { case 0x0000: /* version */ AX_reg(context) = VXD_WinVersion(); RESET_CFLAG(context); break; default: VXD_BARF( context, "VDD" ); } } /*********************************************************************** * VXD_VMD */ void VXD_VMD ( CONTEXT *context ) { unsigned service = AX_reg(context); TRACE(vxd,"[%04x] VMD \n", (UINT16)service); switch(service) { case 0x0000: /* version */ AX_reg(context) = VXD_WinVersion(); RESET_CFLAG(context); break; default: VXD_BARF( context, "VMD" ); } } /*********************************************************************** * VXD_Shell */ void WINAPI VXD_Shell( CONTEXT *context ) { unsigned service = DX_reg(context); TRACE(vxd,"[%04x] Shell\n", (UINT16)service); switch (service) /* Ralf Brown says EDX, but I use DX instead */ { case 0x0000: TRACE(vxd,"returning version\n"); AX_reg(context) = VXD_WinVersion(); EBX_reg(context) = 1; /* system VM Handle */ break; case 0x0001: case 0x0002: case 0x0003: /* SHELL_SYSMODAL_Message ebx virtual maschine handle eax message box flags ecx address of message edi address of caption return response in eax */ case 0x0004: /* SHELL_Message ebx virtual maschine handle eax message box flags ecx address of message edi address of caption esi address callback edx reference data for callback return response in eax */ case 0x0005: VXD_BARF( context, "shell" ); break; case 0x0006: /* SHELL_Get_VM_State */ TRACE(vxd,"VxD Shell: returning VM state\n"); /* Actually we don't, not yet. We have to return a structure * and I am not to sure how to set it up and return it yet, * so for now let's do nothing. I can (hopefully) get this * by the next release */ /* RESET_CFLAG(context); */ break; case 0x0007: case 0x0008: case 0x0009: case 0x000A: case 0x000B: case 0x000C: case 0x000D: case 0x000E: case 0x000F: case 0x0010: case 0x0011: case 0x0012: case 0x0013: case 0x0014: case 0x0015: case 0x0016: VXD_BARF( context, "SHELL" ); break; /* the new Win95 shell API */ case 0x0100: /* get version */ AX_reg(context) = VXD_WinVersion(); break; case 0x0104: /* retrieve Hook_Properties list */ case 0x0105: /* call Hook_Properties callbacks */ VXD_BARF( context, "SHELL" ); break; case 0x0106: /* install timeout callback */ TRACE( vxd, "VxD Shell: ignoring shell callback (%ld sec.)\n", EBX_reg( context ) ); SET_CFLAG(context); break; case 0x0107: /* get version of any VxD */ default: VXD_BARF( context, "SHELL" ); break; } } /*********************************************************************** * VXD_Comm */ void WINAPI VXD_Comm( CONTEXT *context ) { unsigned service = AX_reg(context); TRACE(vxd,"[%04x] Comm\n", (UINT16)service); switch (service) { case 0x0000: /* get version */ TRACE(vxd,"returning version\n"); AX_reg(context) = VXD_WinVersion(); RESET_CFLAG(context); break; case 0x0001: /* set port global */ case 0x0002: /* get focus */ case 0x0003: /* virtualise port */ default: VXD_BARF( context, "comm" ); } } /*********************************************************************** * VXD_Timer */ void VXD_Timer( CONTEXT *context ) { unsigned service = AX_reg(context); TRACE(vxd,"[%04x] Virtual Timer\n", (UINT16)service); switch(service) { case 0x0000: /* version */ AX_reg(context) = VXD_WinVersion(); RESET_CFLAG(context); break; case 0x0100: /* clock tick time, in 840nsecs */ EAX_reg(context) = GetTickCount(); EDX_reg(context) = EAX_reg(context) >> 22; EAX_reg(context) <<= 10; /* not very precise */ break; case 0x0101: /* current Windows time, msecs */ case 0x0102: /* current VM time, msecs */ EAX_reg(context) = GetTickCount(); break; default: VXD_BARF( context, "VTD" ); } } /*********************************************************************** * VXD_TimerAPI */ static DWORD System_Time = 0; static WORD System_Time_Selector = 0; static void System_Time_Tick( WORD timer ) { System_Time += 55; } void VXD_TimerAPI ( CONTEXT *context ) { unsigned service = AX_reg(context); TRACE(vxd,"[%04x] TimerAPI \n", (UINT16)service); switch(service) { case 0x0000: /* version */ AX_reg(context) = VXD_WinVersion(); RESET_CFLAG(context); break; case 0x0009: /* get system time selector */ if ( !System_Time_Selector ) { System_Time_Selector = SELECTOR_AllocBlock( &System_Time, sizeof(DWORD), SEGMENT_DATA, FALSE, TRUE ); CreateSystemTimer( 55, System_Time_Tick ); } AX_reg(context) = System_Time_Selector; RESET_CFLAG(context); break; default: VXD_BARF( context, "VTDAPI" ); } } /*********************************************************************** * VXD_ConfigMG */ void VXD_ConfigMG ( CONTEXT *context ) { unsigned service = AX_reg(context); TRACE(vxd,"[%04x] ConfigMG \n", (UINT16)service); switch(service) { case 0x0000: /* version */ AX_reg(context) = VXD_WinVersion(); RESET_CFLAG(context); break; default: VXD_BARF( context, "CONFIGMG" ); } } /*********************************************************************** * VXD_Enable */ void VXD_Enable ( CONTEXT *context ) { unsigned service = AX_reg(context); TRACE(vxd,"[%04x] Enable \n", (UINT16)service); switch(service) { case 0x0000: /* version */ AX_reg(context) = VXD_WinVersion(); RESET_CFLAG(context); break; default: VXD_BARF( context, "ENABLE" ); } } /*********************************************************************** * VXD_APM */ void VXD_APM ( CONTEXT *context ) { unsigned service = AX_reg(context); TRACE(vxd,"[%04x] APM \n", (UINT16)service); switch(service) { case 0x0000: /* version */ AX_reg(context) = VXD_WinVersion(); RESET_CFLAG(context); break; default: VXD_BARF( context, "APM" ); } } /*********************************************************************** * VXD_Win32s * * This is an implementation of the services of the Win32s VxD. * Since official documentation of these does not seem to be available, * certain arguments of some of the services remain unclear. * * FIXME: The following services are currently unimplemented: * Exception handling (0x01, 0x1C) * Debugger support (0x0C, 0x14, 0x17) * Low-level memory access (0x02, 0x03, 0x0A, 0x0B) * Memory Statistics (0x1B) * * * We have a specific problem running Win32s on Linux (and probably also * the other x86 unixes), since Win32s tries to allocate its main 'flat * code/data segment' selectors with a base of 0xffff0000 (and limit 4GB). * The rationale for this seems to be that they want one the one hand to * be able to leave the Win 3.1 memory (starting with the main DOS memory) * at linear address 0, but want at other hand to have offset 0 of the * flat data/code segment point to an unmapped page (to catch NULL pointer * accesses). Hence they allocate the flat segments with a base of 0xffff0000 * so that the Win 3.1 memory area at linear address zero shows up in the * flat segments at offset 0x10000 (since linear addresses wrap around at * 4GB). To compensate for that discrepancy between flat segment offsets * and plain linear addresses, all flat pointers passed between the 32-bit * and the 16-bit parts of Win32s are shifted by 0x10000 in the appropriate * direction by the glue code (mainly) in W32SKRNL and WIN32S16. * * The problem for us is now that Linux does not allow a LDT selector with * base 0xffff0000 to be created, since it would 'see' a part of the kernel * address space. To address this problem we introduce *another* offset: * We add 0x10000 to every linear address we get as an argument from Win32s. * This means especially that the flat code/data selectors get actually * allocated with base 0x0, so that flat offsets and (real) linear addresses * do again agree! In fact, every call e.g. of a Win32s VxD service now * has all pointer arguments (which are offsets in the flat data segement) * first reduced by 0x10000 by the W32SKRNL glue code, and then again * increased by 0x10000 by *our* code. * * Note that to keep everything consistent, this offset has to be applied by * every Wine function that operates on 'linear addresses' passed to it by * Win32s. Fortunately, since Win32s does not directly call any Wine 32-bit * API routines, this affects only two locations: this VxD and the DPMI * handler. (NOTE: Should any Win32s application pass a linear address to * any routine apart from those, e.g. some other VxD handler, that code * would have to take the offset into account as well!) * * The application of the offset is triggered by marking the current process * as a Win32s process by setting the PDB32_WIN32S_PROC flag in the process * database. This is done the first time any application calls the GetVersion() * service of the Win32s VxD. (Note that the flag is never removed.) * */ void VXD_Win32s( CONTEXT *context ) { switch (AX_reg(context)) { case 0x0000: /* Get Version */ /* * Input: None * * Output: EAX: LoWord: Win32s Version (1.30) * HiWord: VxD Version (200) * * EBX: Build (172) * * ECX: ??? (1) * * EDX: Debugging Flags * * EDI: Error Flag * 0 if OK, * 1 if VMCPD VxD not found */ TRACE(vxd, "GetVersion()\n"); EAX_reg(context) = VXD_WinVersion() | (200 << 16); EBX_reg(context) = 0; ECX_reg(context) = 0; EDX_reg(context) = 0; EDI_reg(context) = 0; /* * If this is the first time we are called for this process, * hack the memory image of WIN32S16 so that it doesn't try * to access the GDT directly ... * * The first code segment of WIN32S16 (version 1.30) contains * an unexported function somewhere between the exported functions * SetFS and StackLinearToSegmented that tries to find a selector * in the LDT that maps to the memory image of the LDT itself. * If it succeeds, it stores this selector into a global variable * which will be used to speed up execution by using this selector * to modify the LDT directly instead of using the DPMI calls. * * To perform this search of the LDT, this function uses the * sgdt and sldt instructions to find the linear address of * the (GDT and then) LDT. While those instructions themselves * execute without problem, the linear address that sgdt returns * points (at least under Linux) to the kernel address space, so * that any subsequent access leads to a segfault. * * Fortunately, WIN32S16 still contains as a fallback option the * mechanism of using DPMI calls to modify LDT selectors instead * of direct writes to the LDT. Thus we can circumvent the problem * by simply replacing the first byte of the offending function * with an 'retf' instruction. This means that the global variable * supposed to contain the LDT alias selector will remain zero, * and hence WIN32S16 will fall back to using DPMI calls. * * The heuristic we employ to _find_ that function is as follows: * We search between the addresses of the exported symbols SetFS * and StackLinearToSegmented for the byte sequence '0F 01 04' * (this is the opcode of 'sgdt [si]'). We then search backwards * from this address for the last occurrance of 'CB' (retf) that marks * the end of the preceeding function. The following byte (which * should now be the first byte of the function we are looking for) * will be replaced by 'CB' (retf). * * This heuristic works for the retail as well as the debug version * of Win32s version 1.30. For versions earlier than that this * hack should not be necessary at all, since the whole mechanism * ('PERF130') was introduced only in 1.30 to improve the overall * performance of Win32s. */ if (!(PROCESS_Current()->flags & PDB32_WIN32S_PROC)) { HMODULE16 hModule = GetModuleHandle16("win32s16"); SEGPTR func1 = (SEGPTR)WIN32_GetProcAddress16(hModule, "SetFS"); SEGPTR func2 = (SEGPTR)WIN32_GetProcAddress16(hModule, "StackLinearToSegmented"); if ( hModule && func1 && func2 && SELECTOROF(func1) == SELECTOROF(func2)) { BYTE *start = PTR_SEG_TO_LIN(func1); BYTE *end = PTR_SEG_TO_LIN(func2); BYTE *p, *retv = NULL; int found = 0; for (p = start; p < end; p++) if (*p == 0xCB) found = 0, retv = p; else if (*p == 0x0F) found = 1; else if (*p == 0x01 && found == 1) found = 2; else if (*p == 0x04 && found == 2) { found = 3; break; } else found = 0; if (found == 3 && retv) { TRACE(vxd, "PERF130 hack: " "Replacing byte %02X at offset %04X:%04X\n", *(retv+1), SELECTOROF(func1), OFFSETOF(func1) + retv+1-start); *(retv+1) = (BYTE)0xCB; } } } /* * Mark process as Win32s, so that subsequent DPMI calls * will perform the W32S_APP2WINE/W32S_WINE2APP address shift. */ PROCESS_Current()->flags |= PDB32_WIN32S_PROC; break; case 0x0001: /* Install Exception Handling */ /* * Input: EBX: Flat address of W32SKRNL Exception Data * * ECX: LoWord: Flat Code Selector * HiWord: Flat Data Selector * * EDX: Flat address of W32SKRNL Exception Handler * (this is equal to W32S_BackTo32 + 0x40) * * ESI: SEGPTR KERNEL.HASGPHANDLER * * EDI: SEGPTR phCurrentTask (KERNEL.THHOOK + 0x10) * * Output: EAX: 0 if OK */ TRACE(vxd, "[0001] EBX=%lx ECX=%lx EDX=%lx ESI=%lx EDI=%lx\n", EBX_reg(context), ECX_reg(context), EDX_reg(context), ESI_reg(context), EDI_reg(context)); /* FIXME */ EAX_reg(context) = 0; break; case 0x0002: /* Set Page Access Flags */ /* * Input: EBX: New access flags * Bit 2: User Page if set, Supervisor Page if clear * Bit 1: Read-Write if set, Read-Only if clear * * ECX: Size of memory area to change * * EDX: Flat start address of memory area * * Output: EAX: Size of area changed */ TRACE(vxd, "[0002] EBX=%lx ECX=%lx EDX=%lx\n", EBX_reg(context), ECX_reg(context), EDX_reg(context)); /* FIXME */ EAX_reg(context) = ECX_reg(context); break; case 0x0003: /* Get Page Access Flags */ /* * Input: EDX: Flat address of page to query * * Output: EAX: Page access flags * Bit 2: User Page if set, Supervisor Page if clear * Bit 1: Read-Write if set, Read-Only if clear */ TRACE(vxd, "[0003] EDX=%lx\n", EDX_reg(context)); /* FIXME */ EAX_reg(context) = 6; break; case 0x0004: /* Map Module */ /* * Input: ECX: IMTE (offset in Module Table) of new module * * EDX: Flat address of Win32s Module Table * * Output: EAX: 0 if OK */ if (!EDX_reg(context) || CX_reg(context) == 0xFFFF) { TRACE(vxd, "MapModule: Initialization call\n"); EAX_reg(context) = 0; } else { /* * Structure of a Win32s Module Table Entry: */ struct Win32sModule { DWORD flags; DWORD flatBaseAddr; LPCSTR moduleName; LPCSTR pathName; LPCSTR unknown; LPBYTE baseAddr; DWORD hModule; DWORD relocDelta; }; /* * Note: This function should set up a demand-paged memory image * of the given module. Since mmap does not allow file offsets * not aligned at 1024 bytes, we simply load the image fully * into memory. */ struct Win32sModule *moduleTable = (struct Win32sModule *)W32S_APP2WINE(EDX_reg(context), W32S_OFFSET); struct Win32sModule *module = moduleTable + ECX_reg(context); IMAGE_NT_HEADERS *nt_header = PE_HEADER(module->baseAddr); IMAGE_SECTION_HEADER *pe_seg = PE_SECTIONS(module->baseAddr); HFILE image = _lopen(module->pathName, OF_READ); BOOL error = (image == INVALID_HANDLE_VALUE); UINT i; TRACE(vxd, "MapModule: Loading %s\n", module->pathName); for (i = 0; !error && i < nt_header->FileHeader.NumberOfSections; i++, pe_seg++) if(!(pe_seg->Characteristics & IMAGE_SCN_CNT_UNINITIALIZED_DATA)) { DWORD off = pe_seg->PointerToRawData; DWORD len = pe_seg->SizeOfRawData; LPBYTE addr = module->baseAddr + pe_seg->VirtualAddress; TRACE(vxd, "MapModule: " "Section %d at %08lx from %08lx len %08lx\n", i, (DWORD)addr, off, len); if ( _llseek(image, off, SEEK_SET) != off || _lread(image, addr, len) != len) error = TRUE; } _lclose(image); if (error) ERR(vxd, "MapModule: Unable to load %s\n", module->pathName); else if (module->relocDelta != 0) { IMAGE_DATA_DIRECTORY *dir = nt_header->OptionalHeader.DataDirectory + IMAGE_DIRECTORY_ENTRY_BASERELOC; IMAGE_BASE_RELOCATION *r = (IMAGE_BASE_RELOCATION *) (dir->Size? module->baseAddr + dir->VirtualAddress : 0); TRACE(vxd, "MapModule: Reloc delta %08lx\n", module->relocDelta); while (r && r->VirtualAddress) { LPBYTE page = module->baseAddr + r->VirtualAddress; int count = (r->SizeOfBlock - 8) / 2; TRACE(vxd, "MapModule: %d relocations for page %08lx\n", count, (DWORD)page); for(i = 0; i < count; i++) { int offset = r->TypeOffset[i] & 0xFFF; int type = r->TypeOffset[i] >> 12; switch(type) { case IMAGE_REL_BASED_ABSOLUTE: break; case IMAGE_REL_BASED_HIGH: *(WORD *)(page+offset) += HIWORD(module->relocDelta); break; case IMAGE_REL_BASED_LOW: *(WORD *)(page+offset) += LOWORD(module->relocDelta); break; case IMAGE_REL_BASED_HIGHLOW: *(DWORD*)(page+offset) += module->relocDelta; break; default: WARN(vxd, "MapModule: Unsupported fixup type\n"); break; } } r = (IMAGE_BASE_RELOCATION *)((LPBYTE)r + r->SizeOfBlock); } } EAX_reg(context) = 0; RESET_CFLAG(context); } break; case 0x0005: /* UnMap Module */ /* * Input: EDX: Flat address of module image * * Output: EAX: 1 if OK */ TRACE(vxd, "UnMapModule: %lx\n", (DWORD)W32S_APP2WINE(EDX_reg(context), W32S_OFFSET)); /* As we didn't map anything, there's nothing to unmap ... */ EAX_reg(context) = 1; break; case 0x0006: /* VirtualAlloc */ /* * Input: ECX: Current Process * * EDX: Flat address of arguments on stack * * DWORD *retv [out] Flat base address of allocated region * LPVOID base [in] Flat address of region to reserve/commit * DWORD size [in] Size of region * DWORD type [in] Type of allocation * DWORD prot [in] Type of access protection * * Output: EAX: NtStatus */ { DWORD *stack = (DWORD *)W32S_APP2WINE(EDX_reg(context), W32S_OFFSET); DWORD *retv = (DWORD *)W32S_APP2WINE(stack[0], W32S_OFFSET); LPVOID base = (LPVOID) W32S_APP2WINE(stack[1], W32S_OFFSET); DWORD size = stack[2]; DWORD type = stack[3]; DWORD prot = stack[4]; DWORD result; TRACE(vxd, "VirtualAlloc(%lx, %lx, %lx, %lx, %lx)\n", (DWORD)retv, (DWORD)base, size, type, prot); if (type & 0x80000000) { WARN(vxd, "VirtualAlloc: strange type %lx\n", type); type &= 0x7fffffff; } if (!base && (type & MEM_COMMIT) && prot == PAGE_READONLY) { WARN(vxd, "VirtualAlloc: NLS hack, allowing write access!\n"); prot = PAGE_READWRITE; } result = (DWORD)VirtualAlloc(base, size, type, prot); if (W32S_WINE2APP(result, W32S_OFFSET)) *retv = W32S_WINE2APP(result, W32S_OFFSET), EAX_reg(context) = STATUS_SUCCESS; else *retv = 0, EAX_reg(context) = STATUS_NO_MEMORY; /* FIXME */ } break; case 0x0007: /* VirtualFree */ /* * Input: ECX: Current Process * * EDX: Flat address of arguments on stack * * DWORD *retv [out] TRUE if success, FALSE if failure * LPVOID base [in] Flat address of region * DWORD size [in] Size of region * DWORD type [in] Type of operation * * Output: EAX: NtStatus */ { DWORD *stack = (DWORD *)W32S_APP2WINE(EDX_reg(context), W32S_OFFSET); DWORD *retv = (DWORD *)W32S_APP2WINE(stack[0], W32S_OFFSET); LPVOID base = (LPVOID) W32S_APP2WINE(stack[1], W32S_OFFSET); DWORD size = stack[2]; DWORD type = stack[3]; DWORD result; TRACE(vxd, "VirtualFree(%lx, %lx, %lx, %lx)\n", (DWORD)retv, (DWORD)base, size, type); result = VirtualFree(base, size, type); if (result) *retv = TRUE, EAX_reg(context) = STATUS_SUCCESS; else *retv = FALSE, EAX_reg(context) = STATUS_NO_MEMORY; /* FIXME */ } break; case 0x0008: /* VirtualProtect */ /* * Input: ECX: Current Process * * EDX: Flat address of arguments on stack * * DWORD *retv [out] TRUE if success, FALSE if failure * LPVOID base [in] Flat address of region * DWORD size [in] Size of region * DWORD new_prot [in] Desired access protection * DWORD *old_prot [out] Previous access protection * * Output: EAX: NtStatus */ { DWORD *stack = (DWORD *)W32S_APP2WINE(EDX_reg(context), W32S_OFFSET); DWORD *retv = (DWORD *)W32S_APP2WINE(stack[0], W32S_OFFSET); LPVOID base = (LPVOID) W32S_APP2WINE(stack[1], W32S_OFFSET); DWORD size = stack[2]; DWORD new_prot = stack[3]; DWORD *old_prot = (DWORD *)W32S_APP2WINE(stack[4], W32S_OFFSET); DWORD result; TRACE(vxd, "VirtualProtect(%lx, %lx, %lx, %lx, %lx)\n", (DWORD)retv, (DWORD)base, size, new_prot, (DWORD)old_prot); result = VirtualProtect(base, size, new_prot, old_prot); if (result) *retv = TRUE, EAX_reg(context) = STATUS_SUCCESS; else *retv = FALSE, EAX_reg(context) = STATUS_NO_MEMORY; /* FIXME */ } break; case 0x0009: /* VirtualQuery */ /* * Input: ECX: Current Process * * EDX: Flat address of arguments on stack * * DWORD *retv [out] Nr. bytes returned * LPVOID base [in] Flat address of region * LPMEMORY_BASIC_INFORMATION info [out] Info buffer * DWORD len [in] Size of buffer * * Output: EAX: NtStatus */ { DWORD *stack = (DWORD *)W32S_APP2WINE(EDX_reg(context), W32S_OFFSET); DWORD *retv = (DWORD *)W32S_APP2WINE(stack[0], W32S_OFFSET); LPVOID base = (LPVOID) W32S_APP2WINE(stack[1], W32S_OFFSET); LPMEMORY_BASIC_INFORMATION info = (LPMEMORY_BASIC_INFORMATION)W32S_APP2WINE(stack[2], W32S_OFFSET); DWORD len = stack[3]; DWORD result; TRACE(vxd, "VirtualQuery(%lx, %lx, %lx, %lx)\n", (DWORD)retv, (DWORD)base, (DWORD)info, len); result = VirtualQuery(base, info, len); *retv = result; EAX_reg(context) = STATUS_SUCCESS; } break; case 0x000A: /* SetVirtMemProcess */ /* * Input: ECX: Process Handle * * EDX: Flat address of region * * Output: EAX: NtStatus */ TRACE(vxd, "[000a] ECX=%lx EDX=%lx\n", ECX_reg(context), EDX_reg(context)); /* FIXME */ EAX_reg(context) = STATUS_SUCCESS; break; case 0x000B: /* ??? some kind of cleanup */ /* * Input: ECX: Process Handle * * Output: EAX: NtStatus */ TRACE(vxd, "[000b] ECX=%lx\n", ECX_reg(context)); /* FIXME */ EAX_reg(context) = STATUS_SUCCESS; break; case 0x000C: /* Set Debug Flags */ /* * Input: EDX: Debug Flags * * Output: EDX: Previous Debug Flags */ FIXME(vxd, "[000c] EDX=%lx\n", EDX_reg(context)); /* FIXME */ EDX_reg(context) = 0; break; case 0x000D: /* NtCreateSection */ /* * Input: EDX: Flat address of arguments on stack * * HANDLE32 *retv [out] Handle of Section created * DWORD flags1 [in] (?? unknown ??) * DWORD atom [in] Name of Section to create * LARGE_INTEGER *size [in] Size of Section * DWORD protect [in] Access protection * DWORD flags2 [in] (?? unknown ??) * HFILE32 hFile [in] Handle of file to map * DWORD psp [in] (Win32s: PSP that hFile belongs to) * * Output: EAX: NtStatus */ { DWORD *stack = (DWORD *) W32S_APP2WINE(EDX_reg(context), W32S_OFFSET); HANDLE *retv = (HANDLE *)W32S_APP2WINE(stack[0], W32S_OFFSET); DWORD flags1 = stack[1]; DWORD atom = stack[2]; LARGE_INTEGER *size = (LARGE_INTEGER *)W32S_APP2WINE(stack[3], W32S_OFFSET); DWORD protect = stack[4]; DWORD flags2 = stack[5]; HFILE hFile = FILE_GetHandle(stack[6]); DWORD psp = stack[7]; HANDLE result = INVALID_HANDLE_VALUE; char name[128]; TRACE(vxd, "NtCreateSection(%lx, %lx, %lx, %lx, %lx, %lx, %lx, %lx)\n", (DWORD)retv, flags1, atom, (DWORD)size, protect, flags2, (DWORD)hFile, psp); if (!atom || GlobalGetAtomNameA(atom, name, sizeof(name))) { TRACE(vxd, "NtCreateSection: name=%s\n", atom? name : NULL); result = CreateFileMappingA(hFile, NULL, protect, size? size->HighPart : 0, size? size->LowPart : 0, atom? name : NULL); } if (result == INVALID_HANDLE_VALUE) WARN(vxd, "NtCreateSection: failed!\n"); else TRACE(vxd, "NtCreateSection: returned %lx\n", (DWORD)result); if (result != INVALID_HANDLE_VALUE) *retv = result, EAX_reg(context) = STATUS_SUCCESS; else *retv = result, EAX_reg(context) = STATUS_NO_MEMORY; /* FIXME */ } break; case 0x000E: /* NtOpenSection */ /* * Input: EDX: Flat address of arguments on stack * * HANDLE32 *retv [out] Handle of Section opened * DWORD protect [in] Access protection * DWORD atom [in] Name of Section to create * * Output: EAX: NtStatus */ { DWORD *stack = (DWORD *)W32S_APP2WINE(EDX_reg(context), W32S_OFFSET); HANDLE *retv = (HANDLE *)W32S_APP2WINE(stack[0], W32S_OFFSET); DWORD protect = stack[1]; DWORD atom = stack[2]; HANDLE result = INVALID_HANDLE_VALUE; char name[128]; TRACE(vxd, "NtOpenSection(%lx, %lx, %lx)\n", (DWORD)retv, protect, atom); if (atom && GlobalGetAtomNameA(atom, name, sizeof(name))) { TRACE(vxd, "NtOpenSection: name=%s\n", name); result = OpenFileMappingA(protect, FALSE, name); } if (result == INVALID_HANDLE_VALUE) WARN(vxd, "NtOpenSection: failed!\n"); else TRACE(vxd, "NtOpenSection: returned %lx\n", (DWORD)result); if (result != INVALID_HANDLE_VALUE) *retv = result, EAX_reg(context) = STATUS_SUCCESS; else *retv = result, EAX_reg(context) = STATUS_NO_MEMORY; /* FIXME */ } break; case 0x000F: /* NtCloseSection */ /* * Input: EDX: Flat address of arguments on stack * * HANDLE32 handle [in] Handle of Section to close * DWORD *id [out] Unique ID (?? unclear ??) * * Output: EAX: NtStatus */ { DWORD *stack = (DWORD *)W32S_APP2WINE(EDX_reg(context), W32S_OFFSET); HANDLE handle = stack[0]; DWORD *id = (DWORD *)W32S_APP2WINE(stack[1], W32S_OFFSET); TRACE(vxd, "NtCloseSection(%lx, %lx)\n", (DWORD)handle, (DWORD)id); CloseHandle(handle); if (id) *id = 0; /* FIXME */ EAX_reg(context) = STATUS_SUCCESS; } break; case 0x0010: /* NtDupSection */ /* * Input: EDX: Flat address of arguments on stack * * HANDLE32 handle [in] Handle of Section to duplicate * * Output: EAX: NtStatus */ { DWORD *stack = (DWORD *)W32S_APP2WINE(EDX_reg(context), W32S_OFFSET); HANDLE handle = stack[0]; HANDLE new_handle; TRACE(vxd, "NtDupSection(%lx)\n", (DWORD)handle); DuplicateHandle( GetCurrentProcess(), handle, GetCurrentProcess(), &new_handle, 0, FALSE, DUPLICATE_SAME_ACCESS ); EAX_reg(context) = STATUS_SUCCESS; } break; case 0x0011: /* NtMapViewOfSection */ /* * Input: EDX: Flat address of arguments on stack * * HANDLE32 SectionHandle [in] Section to be mapped * DWORD ProcessHandle [in] Process to be mapped into * DWORD * BaseAddress [in/out] Address to be mapped at * DWORD ZeroBits [in] (?? unclear ??) * DWORD CommitSize [in] (?? unclear ??) * LARGE_INTEGER *SectionOffset [in] Offset within section * DWORD * ViewSize [in] Size of view * DWORD InheritDisposition [in] (?? unclear ??) * DWORD AllocationType [in] (?? unclear ??) * DWORD Protect [in] Access protection * * Output: EAX: NtStatus */ { DWORD * stack = (DWORD *)W32S_APP2WINE(EDX_reg(context), W32S_OFFSET); HANDLE SectionHandle = stack[0]; DWORD ProcessHandle = stack[1]; /* ignored */ DWORD * BaseAddress = (DWORD *)W32S_APP2WINE(stack[2], W32S_OFFSET); DWORD ZeroBits = stack[3]; DWORD CommitSize = stack[4]; LARGE_INTEGER *SectionOffset = (LARGE_INTEGER *)W32S_APP2WINE(stack[5], W32S_OFFSET); DWORD * ViewSize = (DWORD *)W32S_APP2WINE(stack[6], W32S_OFFSET); DWORD InheritDisposition = stack[7]; DWORD AllocationType = stack[8]; DWORD Protect = stack[9]; LPBYTE address = (LPBYTE)(BaseAddress? W32S_APP2WINE(*BaseAddress, W32S_OFFSET) : 0); DWORD access = 0, result; switch (Protect & ~(PAGE_GUARD|PAGE_NOCACHE)) { case PAGE_READONLY: access = FILE_MAP_READ; break; case PAGE_READWRITE: access = FILE_MAP_WRITE; break; case PAGE_WRITECOPY: access = FILE_MAP_COPY; break; case PAGE_EXECUTE_READ: access = FILE_MAP_READ; break; case PAGE_EXECUTE_READWRITE: access = FILE_MAP_WRITE; break; case PAGE_EXECUTE_WRITECOPY: access = FILE_MAP_COPY; break; } TRACE(vxd, "NtMapViewOfSection" "(%lx, %lx, %lx, %lx, %lx, %lx, %lx, %lx, %lx, %lx)\n", (DWORD)SectionHandle, ProcessHandle, (DWORD)BaseAddress, ZeroBits, CommitSize, (DWORD)SectionOffset, (DWORD)ViewSize, InheritDisposition, AllocationType, Protect); TRACE(vxd, "NtMapViewOfSection: " "base=%lx, offset=%lx, size=%lx, access=%lx\n", (DWORD)address, SectionOffset? SectionOffset->LowPart : 0, ViewSize? *ViewSize : 0, access); result = (DWORD)MapViewOfFileEx(SectionHandle, access, SectionOffset? SectionOffset->HighPart : 0, SectionOffset? SectionOffset->LowPart : 0, ViewSize? *ViewSize : 0, address); TRACE(vxd, "NtMapViewOfSection: result=%lx\n", result); if (W32S_WINE2APP(result, W32S_OFFSET)) { if (BaseAddress) *BaseAddress = W32S_WINE2APP(result, W32S_OFFSET); EAX_reg(context) = STATUS_SUCCESS; } else EAX_reg(context) = STATUS_NO_MEMORY; /* FIXME */ } break; case 0x0012: /* NtUnmapViewOfSection */ /* * Input: EDX: Flat address of arguments on stack * * DWORD ProcessHandle [in] Process (defining address space) * LPBYTE BaseAddress [in] Base address of view to be unmapped * * Output: EAX: NtStatus */ { DWORD *stack = (DWORD *)W32S_APP2WINE(EDX_reg(context), W32S_OFFSET); DWORD ProcessHandle = stack[0]; /* ignored */ LPBYTE BaseAddress = (LPBYTE)W32S_APP2WINE(stack[1], W32S_OFFSET); TRACE(vxd, "NtUnmapViewOfSection(%lx, %lx)\n", ProcessHandle, (DWORD)BaseAddress); UnmapViewOfFile(BaseAddress); EAX_reg(context) = STATUS_SUCCESS; } break; case 0x0013: /* NtFlushVirtualMemory */ /* * Input: EDX: Flat address of arguments on stack * * DWORD ProcessHandle [in] Process (defining address space) * LPBYTE *BaseAddress [in?] Base address of range to be flushed * DWORD *ViewSize [in?] Number of bytes to be flushed * DWORD *unknown [???] (?? unknown ??) * * Output: EAX: NtStatus */ { DWORD *stack = (DWORD *)W32S_APP2WINE(EDX_reg(context), W32S_OFFSET); DWORD ProcessHandle = stack[0]; /* ignored */ DWORD *BaseAddress = (DWORD *)W32S_APP2WINE(stack[1], W32S_OFFSET); DWORD *ViewSize = (DWORD *)W32S_APP2WINE(stack[2], W32S_OFFSET); DWORD *unknown = (DWORD *)W32S_APP2WINE(stack[3], W32S_OFFSET); LPBYTE address = (LPBYTE)(BaseAddress? W32S_APP2WINE(*BaseAddress, W32S_OFFSET) : 0); DWORD size = ViewSize? *ViewSize : 0; TRACE(vxd, "NtFlushVirtualMemory(%lx, %lx, %lx, %lx)\n", ProcessHandle, (DWORD)BaseAddress, (DWORD)ViewSize, (DWORD)unknown); TRACE(vxd, "NtFlushVirtualMemory: base=%lx, size=%lx\n", (DWORD)address, size); FlushViewOfFile(address, size); EAX_reg(context) = STATUS_SUCCESS; } break; case 0x0014: /* Get/Set Debug Registers */ /* * Input: ECX: 0 if Get, 1 if Set * * EDX: Get: Flat address of buffer to receive values of * debug registers DR0 .. DR7 * Set: Flat address of buffer containing values of * debug registers DR0 .. DR7 to be set * Output: None */ FIXME(vxd, "[0014] ECX=%lx EDX=%lx\n", ECX_reg(context), EDX_reg(context)); /* FIXME */ break; case 0x0015: /* Set Coprocessor Emulation Flag */ /* * Input: EDX: 0 to deactivate, 1 to activate coprocessor emulation * * Output: None */ TRACE(vxd, "[0015] EDX=%lx\n", EDX_reg(context)); /* We don't care, as we always have a coprocessor anyway */ break; case 0x0016: /* Init Win32S VxD PSP */ /* * If called to query required PSP size: * * Input: EBX: 0 * Output: EDX: Required size of Win32s VxD PSP * * If called to initialize allocated PSP: * * Input: EBX: LoWord: Selector of Win32s VxD PSP * HiWord: Paragraph of Win32s VxD PSP (DOSMEM) * Output: None */ if (EBX_reg(context) == 0) EDX_reg(context) = 0x80; else { PDB16 *psp = PTR_SEG_OFF_TO_LIN(BX_reg(context), 0); psp->nbFiles = 32; psp->fileHandlesPtr = MAKELONG(HIWORD(EBX_reg(context)), 0x5c); memset((LPBYTE)psp + 0x5c, '\xFF', 32); } break; case 0x0017: /* Set Break Point */ /* * Input: EBX: Offset of Break Point * CX: Selector of Break Point * * Output: None */ FIXME(vxd, "[0017] EBX=%lx CX=%x\n", EBX_reg(context), CX_reg(context)); /* FIXME */ break; case 0x0018: /* VirtualLock */ /* * Input: ECX: Current Process * * EDX: Flat address of arguments on stack * * DWORD *retv [out] TRUE if success, FALSE if failure * LPVOID base [in] Flat address of range to lock * DWORD size [in] Size of range * * Output: EAX: NtStatus */ { DWORD *stack = (DWORD *)W32S_APP2WINE(EDX_reg(context), W32S_OFFSET); DWORD *retv = (DWORD *)W32S_APP2WINE(stack[0], W32S_OFFSET); LPVOID base = (LPVOID) W32S_APP2WINE(stack[1], W32S_OFFSET); DWORD size = stack[2]; DWORD result; TRACE(vxd, "VirtualLock(%lx, %lx, %lx)\n", (DWORD)retv, (DWORD)base, size); result = VirtualLock(base, size); if (result) *retv = TRUE, EAX_reg(context) = STATUS_SUCCESS; else *retv = FALSE, EAX_reg(context) = STATUS_NO_MEMORY; /* FIXME */ } break; case 0x0019: /* VirtualUnlock */ /* * Input: ECX: Current Process * * EDX: Flat address of arguments on stack * * DWORD *retv [out] TRUE if success, FALSE if failure * LPVOID base [in] Flat address of range to unlock * DWORD size [in] Size of range * * Output: EAX: NtStatus */ { DWORD *stack = (DWORD *)W32S_APP2WINE(EDX_reg(context), W32S_OFFSET); DWORD *retv = (DWORD *)W32S_APP2WINE(stack[0], W32S_OFFSET); LPVOID base = (LPVOID) W32S_APP2WINE(stack[1], W32S_OFFSET); DWORD size = stack[2]; DWORD result; TRACE(vxd, "VirtualUnlock(%lx, %lx, %lx)\n", (DWORD)retv, (DWORD)base, size); result = VirtualUnlock(base, size); if (result) *retv = TRUE, EAX_reg(context) = STATUS_SUCCESS; else *retv = FALSE, EAX_reg(context) = STATUS_NO_MEMORY; /* FIXME */ } break; case 0x001A: /* KGetSystemInfo */ /* * Input: None * * Output: ECX: Start of sparse memory arena * EDX: End of sparse memory arena */ TRACE(vxd, "KGetSystemInfo()\n"); /* * Note: Win32s reserves 0GB - 2GB for Win 3.1 and uses 2GB - 4GB as * sparse memory arena. We do it the other way around, since * we have to reserve 3GB - 4GB for Linux, and thus use * 0GB - 3GB as sparse memory arena. * * FIXME: What about other OSes ? */ ECX_reg(context) = W32S_WINE2APP(0x00000000, W32S_OFFSET); EDX_reg(context) = W32S_WINE2APP(0xbfffffff, W32S_OFFSET); break; case 0x001B: /* KGlobalMemStat */ /* * Input: ESI: Flat address of buffer to receive memory info * * Output: None */ { struct Win32sMemoryInfo { DWORD DIPhys_Count; /* Total physical pages */ DWORD DIFree_Count; /* Free physical pages */ DWORD DILin_Total_Count; /* Total virtual pages (private arena) */ DWORD DILin_Total_Free; /* Free virtual pages (private arena) */ DWORD SparseTotal; /* Total size of sparse arena (bytes ?) */ DWORD SparseFree; /* Free size of sparse arena (bytes ?) */ }; struct Win32sMemoryInfo *info = (struct Win32sMemoryInfo *)W32S_APP2WINE(ESI_reg(context), W32S_OFFSET); FIXME(vxd, "KGlobalMemStat(%lx)\n", (DWORD)info); /* FIXME */ } break; case 0x001C: /* Enable/Disable Exceptions */ /* * Input: ECX: 0 to disable, 1 to enable exception handling * * Output: None */ TRACE(vxd, "[001c] ECX=%lx\n", ECX_reg(context)); /* FIXME */ break; case 0x001D: /* VirtualAlloc called from 16-bit code */ /* * Input: EDX: Segmented address of arguments on stack * * LPVOID base [in] Flat address of region to reserve/commit * DWORD size [in] Size of region * DWORD type [in] Type of allocation * DWORD prot [in] Type of access protection * * Output: EAX: NtStatus * EDX: Flat base address of allocated region */ { DWORD *stack = PTR_SEG_OFF_TO_LIN(LOWORD(EDX_reg(context)), HIWORD(EDX_reg(context))); LPVOID base = (LPVOID)W32S_APP2WINE(stack[0], W32S_OFFSET); DWORD size = stack[1]; DWORD type = stack[2]; DWORD prot = stack[3]; DWORD result; TRACE(vxd, "VirtualAlloc16(%lx, %lx, %lx, %lx)\n", (DWORD)base, size, type, prot); if (type & 0x80000000) { WARN(vxd, "VirtualAlloc16: strange type %lx\n", type); type &= 0x7fffffff; } result = (DWORD)VirtualAlloc(base, size, type, prot); if (W32S_WINE2APP(result, W32S_OFFSET)) EDX_reg(context) = W32S_WINE2APP(result, W32S_OFFSET), EAX_reg(context) = STATUS_SUCCESS; else EDX_reg(context) = 0, EAX_reg(context) = STATUS_NO_MEMORY; /* FIXME */ TRACE(vxd, "VirtualAlloc16: returning base %lx\n", EDX_reg(context)); } break; case 0x001E: /* VirtualFree called from 16-bit code */ /* * Input: EDX: Segmented address of arguments on stack * * LPVOID base [in] Flat address of region * DWORD size [in] Size of region * DWORD type [in] Type of operation * * Output: EAX: NtStatus * EDX: TRUE if success, FALSE if failure */ { DWORD *stack = PTR_SEG_OFF_TO_LIN(LOWORD(EDX_reg(context)), HIWORD(EDX_reg(context))); LPVOID base = (LPVOID)W32S_APP2WINE(stack[0], W32S_OFFSET); DWORD size = stack[1]; DWORD type = stack[2]; DWORD result; TRACE(vxd, "VirtualFree16(%lx, %lx, %lx)\n", (DWORD)base, size, type); result = VirtualFree(base, size, type); if (result) EDX_reg(context) = TRUE, EAX_reg(context) = STATUS_SUCCESS; else EDX_reg(context) = FALSE, EAX_reg(context) = STATUS_NO_MEMORY; /* FIXME */ } break; case 0x001F: /* FWorkingSetSize */ /* * Input: EDX: 0 if Get, 1 if Set * * ECX: Get: Buffer to receive Working Set Size * Set: Buffer containing Working Set Size * * Output: NtStatus */ { DWORD *ptr = (DWORD *)W32S_APP2WINE(ECX_reg(context), W32S_OFFSET); BOOL set = EDX_reg(context); TRACE(vxd, "FWorkingSetSize(%lx, %lx)\n", (DWORD)ptr, (DWORD)set); if (set) /* We do it differently ... */; else *ptr = 0x100; EAX_reg(context) = STATUS_SUCCESS; } break; default: VXD_BARF( context, "W32S" ); } }