/* * Loader functions * * Copyright 1995, 2003 Alexandre Julliard * Copyright 2002 Dmitry Timoshkov for CodeWeavers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */ #include "config.h" #include "wine/port.h" #include #include #define NONAMELESSUNION #define NONAMELESSSTRUCT #include "ntstatus.h" #define WIN32_NO_STATUS #include "windef.h" #include "winnt.h" #include "winternl.h" #include "wine/exception.h" #include "wine/library.h" #include "wine/unicode.h" #include "wine/debug.h" #include "wine/server.h" #include "ntdll_misc.h" #include "ddk/wdm.h" WINE_DEFAULT_DEBUG_CHANNEL(module); WINE_DECLARE_DEBUG_CHANNEL(relay); WINE_DECLARE_DEBUG_CHANNEL(snoop); WINE_DECLARE_DEBUG_CHANNEL(loaddll); WINE_DECLARE_DEBUG_CHANNEL(imports); /* we don't want to include winuser.h */ #define RT_MANIFEST ((ULONG_PTR)24) #define ISOLATIONAWARE_MANIFEST_RESOURCE_ID ((ULONG_PTR)2) typedef DWORD (CALLBACK *DLLENTRYPROC)(HMODULE,DWORD,LPVOID); static int process_detaching = 0; /* set on process detach to avoid deadlocks with thread detach */ static int free_lib_count; /* recursion depth of LdrUnloadDll calls */ static const char * const reason_names[] = { "PROCESS_DETACH", "PROCESS_ATTACH", "THREAD_ATTACH", "THREAD_DETACH", NULL, NULL, NULL, NULL, "WINE_PREATTACH" }; static const WCHAR dllW[] = {'.','d','l','l',0}; /* internal representation of 32bit modules. per process. */ typedef struct _wine_modref { LDR_MODULE ldr; int nDeps; struct _wine_modref **deps; } WINE_MODREF; /* info about the current builtin dll load */ /* used to keep track of things across the register_dll constructor call */ struct builtin_load_info { const WCHAR *load_path; const WCHAR *filename; NTSTATUS status; WINE_MODREF *wm; }; static struct builtin_load_info default_load_info; static struct builtin_load_info *builtin_load_info = &default_load_info; static HANDLE main_exe_file; static UINT tls_module_count; /* number of modules with TLS directory */ static UINT tls_total_size; /* total size of TLS storage */ static const IMAGE_TLS_DIRECTORY **tls_dirs; /* array of TLS directories */ UNICODE_STRING windows_dir = { 0, 0, NULL }; /* windows directory */ UNICODE_STRING system_dir = { 0, 0, NULL }; /* system directory */ static RTL_CRITICAL_SECTION loader_section; static RTL_CRITICAL_SECTION_DEBUG critsect_debug = { 0, 0, &loader_section, { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList }, 0, 0, { (DWORD_PTR)(__FILE__ ": loader_section") } }; static RTL_CRITICAL_SECTION loader_section = { &critsect_debug, -1, 0, 0, 0, 0 }; static WINE_MODREF *cached_modref; static WINE_MODREF *current_modref; static WINE_MODREF *last_failed_modref; static NTSTATUS load_dll( LPCWSTR load_path, LPCWSTR libname, DWORD flags, WINE_MODREF** pwm ); static FARPROC find_named_export( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports, DWORD exp_size, const char *name, int hint ); /* convert PE image VirtualAddress to Real Address */ static inline void *get_rva( HMODULE module, DWORD va ) { return (void *)((char *)module + va); } /* check whether the file name contains a path */ static inline int contains_path( LPCWSTR name ) { return ((*name && (name[1] == ':')) || strchrW(name, '/') || strchrW(name, '\\')); } /* convert from straight ASCII to Unicode without depending on the current codepage */ static inline void ascii_to_unicode( WCHAR *dst, const char *src, size_t len ) { while (len--) *dst++ = (unsigned char)*src++; } /************************************************************************* * call_dll_entry_point * * Some brain-damaged dlls (ir32_32.dll for instance) modify ebx in * their entry point, so we need a small asm wrapper. */ #ifdef __i386__ extern BOOL call_dll_entry_point( DLLENTRYPROC proc, void *module, UINT reason, void *reserved ); __ASM_GLOBAL_FUNC(call_dll_entry_point, "pushl %ebp\n\t" "movl %esp,%ebp\n\t" "pushl %ebx\n\t" "subl $8,%esp\n\t" "pushl 20(%ebp)\n\t" "pushl 16(%ebp)\n\t" "pushl 12(%ebp)\n\t" "movl 8(%ebp),%eax\n\t" "call *%eax\n\t" "leal -4(%ebp),%esp\n\t" "popl %ebx\n\t" "popl %ebp\n\t" "ret" ) #else /* __i386__ */ static inline BOOL call_dll_entry_point( DLLENTRYPROC proc, void *module, UINT reason, void *reserved ) { return proc( module, reason, reserved ); } #endif /* __i386__ */ #ifdef __i386__ /************************************************************************* * stub_entry_point * * Entry point for stub functions. */ static void stub_entry_point( const char *dll, const char *name, ... ) { EXCEPTION_RECORD rec; rec.ExceptionCode = EXCEPTION_WINE_STUB; rec.ExceptionFlags = EH_NONCONTINUABLE; rec.ExceptionRecord = NULL; #ifdef __GNUC__ rec.ExceptionAddress = __builtin_return_address(0); #else rec.ExceptionAddress = *((void **)&dll - 1); #endif rec.NumberParameters = 2; rec.ExceptionInformation[0] = (ULONG_PTR)dll; rec.ExceptionInformation[1] = (ULONG_PTR)name; for (;;) RtlRaiseException( &rec ); } #include "pshpack1.h" struct stub { BYTE popl_eax; /* popl %eax */ BYTE pushl1; /* pushl $name */ const char *name; BYTE pushl2; /* pushl $dll */ const char *dll; BYTE pushl_eax; /* pushl %eax */ BYTE jmp; /* jmp stub_entry_point */ DWORD entry; }; #include "poppack.h" /************************************************************************* * allocate_stub * * Allocate a stub entry point. */ static ULONG_PTR allocate_stub( const char *dll, const char *name ) { #define MAX_SIZE 65536 static struct stub *stubs; static unsigned int nb_stubs; struct stub *stub; if (nb_stubs >= MAX_SIZE / sizeof(*stub)) return 0xdeadbeef; if (!stubs) { SIZE_T size = MAX_SIZE; if (NtAllocateVirtualMemory( NtCurrentProcess(), (void **)&stubs, 0, &size, MEM_COMMIT, PAGE_EXECUTE_WRITECOPY ) != STATUS_SUCCESS) return 0xdeadbeef; } stub = &stubs[nb_stubs++]; stub->popl_eax = 0x58; /* popl %eax */ stub->pushl1 = 0x68; /* pushl $name */ stub->name = name; stub->pushl2 = 0x68; /* pushl $dll */ stub->dll = dll; stub->pushl_eax = 0x50; /* pushl %eax */ stub->jmp = 0xe9; /* jmp stub_entry_point */ stub->entry = (BYTE *)stub_entry_point - (BYTE *)(&stub->entry + 1); return (ULONG_PTR)stub; } #else /* __i386__ */ static inline ULONG_PTR allocate_stub( const char *dll, const char *name ) { return 0xdeadbeef; } #endif /* __i386__ */ /************************************************************************* * get_modref * * Looks for the referenced HMODULE in the current process * The loader_section must be locked while calling this function. */ static WINE_MODREF *get_modref( HMODULE hmod ) { PLIST_ENTRY mark, entry; PLDR_MODULE mod; if (cached_modref && cached_modref->ldr.BaseAddress == hmod) return cached_modref; mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList; for (entry = mark->Flink; entry != mark; entry = entry->Flink) { mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList); if (mod->BaseAddress == hmod) return cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr); if (mod->BaseAddress > (void*)hmod) break; } return NULL; } /********************************************************************** * find_basename_module * * Find a module from its base name. * The loader_section must be locked while calling this function */ static WINE_MODREF *find_basename_module( LPCWSTR name ) { PLIST_ENTRY mark, entry; if (cached_modref && !strcmpiW( name, cached_modref->ldr.BaseDllName.Buffer )) return cached_modref; mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList; for (entry = mark->Flink; entry != mark; entry = entry->Flink) { LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList); if (!strcmpiW( name, mod->BaseDllName.Buffer )) { cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr); return cached_modref; } } return NULL; } /********************************************************************** * find_fullname_module * * Find a module from its full path name. * The loader_section must be locked while calling this function */ static WINE_MODREF *find_fullname_module( LPCWSTR name ) { PLIST_ENTRY mark, entry; if (cached_modref && !strcmpiW( name, cached_modref->ldr.FullDllName.Buffer )) return cached_modref; mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList; for (entry = mark->Flink; entry != mark; entry = entry->Flink) { LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList); if (!strcmpiW( name, mod->FullDllName.Buffer )) { cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr); return cached_modref; } } return NULL; } /************************************************************************* * find_forwarded_export * * Find the final function pointer for a forwarded function. * The loader_section must be locked while calling this function. */ static FARPROC find_forwarded_export( HMODULE module, const char *forward ) { const IMAGE_EXPORT_DIRECTORY *exports; DWORD exp_size; WINE_MODREF *wm; WCHAR mod_name[32]; const char *end = strrchr(forward, '.'); FARPROC proc = NULL; if (!end) return NULL; if ((end - forward) * sizeof(WCHAR) >= sizeof(mod_name)) return NULL; ascii_to_unicode( mod_name, forward, end - forward ); mod_name[end - forward] = 0; if (!strchrW( mod_name, '.' )) { if ((end - forward) * sizeof(WCHAR) >= sizeof(mod_name) - sizeof(dllW)) return NULL; memcpy( mod_name + (end - forward), dllW, sizeof(dllW) ); } if (!(wm = find_basename_module( mod_name ))) { ERR("module not found for forward '%s' used by %s\n", forward, debugstr_w(get_modref(module)->ldr.FullDllName.Buffer) ); return NULL; } if ((exports = RtlImageDirectoryEntryToData( wm->ldr.BaseAddress, TRUE, IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size ))) proc = find_named_export( wm->ldr.BaseAddress, exports, exp_size, end + 1, -1 ); if (!proc) { ERR("function not found for forward '%s' used by %s." " If you are using builtin %s, try using the native one instead.\n", forward, debugstr_w(get_modref(module)->ldr.FullDllName.Buffer), debugstr_w(get_modref(module)->ldr.BaseDllName.Buffer) ); } return proc; } /************************************************************************* * find_ordinal_export * * Find an exported function by ordinal. * The exports base must have been subtracted from the ordinal already. * The loader_section must be locked while calling this function. */ static FARPROC find_ordinal_export( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports, DWORD exp_size, DWORD ordinal ) { FARPROC proc; const DWORD *functions = get_rva( module, exports->AddressOfFunctions ); if (ordinal >= exports->NumberOfFunctions) { TRACE(" ordinal %d out of range!\n", ordinal + exports->Base ); return NULL; } if (!functions[ordinal]) return NULL; proc = get_rva( module, functions[ordinal] ); /* if the address falls into the export dir, it's a forward */ if (((const char *)proc >= (const char *)exports) && ((const char *)proc < (const char *)exports + exp_size)) return find_forwarded_export( module, (const char *)proc ); if (TRACE_ON(snoop)) { const WCHAR *user = current_modref ? current_modref->ldr.BaseDllName.Buffer : NULL; proc = SNOOP_GetProcAddress( module, exports, exp_size, proc, ordinal, user ); } if (TRACE_ON(relay)) { const WCHAR *user = current_modref ? current_modref->ldr.BaseDllName.Buffer : NULL; proc = RELAY_GetProcAddress( module, exports, exp_size, proc, ordinal, user ); } return proc; } /************************************************************************* * find_named_export * * Find an exported function by name. * The loader_section must be locked while calling this function. */ static FARPROC find_named_export( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports, DWORD exp_size, const char *name, int hint ) { const WORD *ordinals = get_rva( module, exports->AddressOfNameOrdinals ); const DWORD *names = get_rva( module, exports->AddressOfNames ); int min = 0, max = exports->NumberOfNames - 1; /* first check the hint */ if (hint >= 0 && hint <= max) { char *ename = get_rva( module, names[hint] ); if (!strcmp( ename, name )) return find_ordinal_export( module, exports, exp_size, ordinals[hint] ); } /* then do a binary search */ while (min <= max) { int res, pos = (min + max) / 2; char *ename = get_rva( module, names[pos] ); if (!(res = strcmp( ename, name ))) return find_ordinal_export( module, exports, exp_size, ordinals[pos] ); if (res > 0) max = pos - 1; else min = pos + 1; } return NULL; } /************************************************************************* * import_dll * * Import the dll specified by the given import descriptor. * The loader_section must be locked while calling this function. */ static WINE_MODREF *import_dll( HMODULE module, const IMAGE_IMPORT_DESCRIPTOR *descr, LPCWSTR load_path ) { NTSTATUS status; WINE_MODREF *wmImp; HMODULE imp_mod; const IMAGE_EXPORT_DIRECTORY *exports; DWORD exp_size; const IMAGE_THUNK_DATA *import_list; IMAGE_THUNK_DATA *thunk_list; WCHAR buffer[32]; const char *name = get_rva( module, descr->Name ); DWORD len = strlen(name); PVOID protect_base; SIZE_T protect_size = 0; DWORD protect_old; thunk_list = get_rva( module, (DWORD)descr->FirstThunk ); if (descr->u.OriginalFirstThunk) import_list = get_rva( module, (DWORD)descr->u.OriginalFirstThunk ); else import_list = thunk_list; while (len && name[len-1] == ' ') len--; /* remove trailing spaces */ if (len * sizeof(WCHAR) < sizeof(buffer)) { ascii_to_unicode( buffer, name, len ); buffer[len] = 0; status = load_dll( load_path, buffer, 0, &wmImp ); } else /* need to allocate a larger buffer */ { WCHAR *ptr = RtlAllocateHeap( GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR) ); if (!ptr) return NULL; ascii_to_unicode( ptr, name, len ); ptr[len] = 0; status = load_dll( load_path, ptr, 0, &wmImp ); RtlFreeHeap( GetProcessHeap(), 0, ptr ); } if (status) { if (status == STATUS_DLL_NOT_FOUND) ERR("Library %s (which is needed by %s) not found\n", name, debugstr_w(current_modref->ldr.FullDllName.Buffer)); else ERR("Loading library %s (which is needed by %s) failed (error %x).\n", name, debugstr_w(current_modref->ldr.FullDllName.Buffer), status); return NULL; } /* unprotect the import address table since it can be located in * readonly section */ while (import_list[protect_size].u1.Ordinal) protect_size++; protect_base = thunk_list; protect_size *= sizeof(*thunk_list); NtProtectVirtualMemory( NtCurrentProcess(), &protect_base, &protect_size, PAGE_WRITECOPY, &protect_old ); imp_mod = wmImp->ldr.BaseAddress; exports = RtlImageDirectoryEntryToData( imp_mod, TRUE, IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size ); if (!exports) { /* set all imported function to deadbeef */ while (import_list->u1.Ordinal) { if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal)) { int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal); WARN("No implementation for %s.%d", name, ordinal ); thunk_list->u1.Function = allocate_stub( name, IntToPtr(ordinal) ); } else { IMAGE_IMPORT_BY_NAME *pe_name = get_rva( module, (DWORD)import_list->u1.AddressOfData ); WARN("No implementation for %s.%s", name, pe_name->Name ); thunk_list->u1.Function = allocate_stub( name, (const char*)pe_name->Name ); } WARN(" imported from %s, allocating stub %p\n", debugstr_w(current_modref->ldr.FullDllName.Buffer), (void *)thunk_list->u1.Function ); import_list++; thunk_list++; } goto done; } while (import_list->u1.Ordinal) { if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal)) { int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal); thunk_list->u1.Function = (ULONG_PTR)find_ordinal_export( imp_mod, exports, exp_size, ordinal - exports->Base ); if (!thunk_list->u1.Function) { thunk_list->u1.Function = allocate_stub( name, IntToPtr(ordinal) ); WARN("No implementation for %s.%d imported from %s, setting to %p\n", name, ordinal, debugstr_w(current_modref->ldr.FullDllName.Buffer), (void *)thunk_list->u1.Function ); } TRACE_(imports)("--- Ordinal %s.%d = %p\n", name, ordinal, (void *)thunk_list->u1.Function ); } else /* import by name */ { IMAGE_IMPORT_BY_NAME *pe_name; pe_name = get_rva( module, (DWORD)import_list->u1.AddressOfData ); thunk_list->u1.Function = (ULONG_PTR)find_named_export( imp_mod, exports, exp_size, (const char*)pe_name->Name, pe_name->Hint ); if (!thunk_list->u1.Function) { thunk_list->u1.Function = allocate_stub( name, (const char*)pe_name->Name ); WARN("No implementation for %s.%s imported from %s, setting to %p\n", name, pe_name->Name, debugstr_w(current_modref->ldr.FullDllName.Buffer), (void *)thunk_list->u1.Function ); } TRACE_(imports)("--- %s %s.%d = %p\n", pe_name->Name, name, pe_name->Hint, (void *)thunk_list->u1.Function); } import_list++; thunk_list++; } done: /* restore old protection of the import address table */ NtProtectVirtualMemory( NtCurrentProcess(), &protect_base, &protect_size, protect_old, NULL ); return wmImp; } /*********************************************************************** * create_module_activation_context */ static NTSTATUS create_module_activation_context( LDR_MODULE *module ) { NTSTATUS status; LDR_RESOURCE_INFO info; const IMAGE_RESOURCE_DATA_ENTRY *entry; info.Type = RT_MANIFEST; info.Name = ISOLATIONAWARE_MANIFEST_RESOURCE_ID; info.Language = 0; if (!(status = LdrFindResource_U( module->BaseAddress, &info, 3, &entry ))) { ACTCTXW ctx; ctx.cbSize = sizeof(ctx); ctx.lpSource = NULL; ctx.dwFlags = ACTCTX_FLAG_RESOURCE_NAME_VALID | ACTCTX_FLAG_HMODULE_VALID; ctx.hModule = module->BaseAddress; ctx.lpResourceName = (LPCWSTR)ISOLATIONAWARE_MANIFEST_RESOURCE_ID; status = RtlCreateActivationContext( &module->ActivationContext, &ctx ); } return status; } /**************************************************************** * fixup_imports * * Fixup all imports of a given module. * The loader_section must be locked while calling this function. */ static NTSTATUS fixup_imports( WINE_MODREF *wm, LPCWSTR load_path ) { int i, nb_imports; const IMAGE_IMPORT_DESCRIPTOR *imports; WINE_MODREF *prev; DWORD size; NTSTATUS status; ULONG_PTR cookie; if (!(wm->ldr.Flags & LDR_DONT_RESOLVE_REFS)) return STATUS_SUCCESS; /* already done */ wm->ldr.Flags &= ~LDR_DONT_RESOLVE_REFS; if (!(imports = RtlImageDirectoryEntryToData( wm->ldr.BaseAddress, TRUE, IMAGE_DIRECTORY_ENTRY_IMPORT, &size ))) return STATUS_SUCCESS; nb_imports = 0; while (imports[nb_imports].Name && imports[nb_imports].FirstThunk) nb_imports++; if (!nb_imports) return STATUS_SUCCESS; /* no imports */ if (!create_module_activation_context( &wm->ldr )) RtlActivateActivationContext( 0, wm->ldr.ActivationContext, &cookie ); /* Allocate module dependency list */ wm->nDeps = nb_imports; wm->deps = RtlAllocateHeap( GetProcessHeap(), 0, nb_imports*sizeof(WINE_MODREF *) ); /* load the imported modules. They are automatically * added to the modref list of the process. */ prev = current_modref; current_modref = wm; status = STATUS_SUCCESS; for (i = 0; i < nb_imports; i++) { if (!(wm->deps[i] = import_dll( wm->ldr.BaseAddress, &imports[i], load_path ))) status = STATUS_DLL_NOT_FOUND; } current_modref = prev; if (wm->ldr.ActivationContext) RtlDeactivateActivationContext( 0, cookie ); return status; } /************************************************************************* * alloc_module * * Allocate a WINE_MODREF structure and add it to the process list * The loader_section must be locked while calling this function. */ static WINE_MODREF *alloc_module( HMODULE hModule, LPCWSTR filename ) { WINE_MODREF *wm; const WCHAR *p; const IMAGE_NT_HEADERS *nt = RtlImageNtHeader(hModule); PLIST_ENTRY entry, mark; if (!(wm = RtlAllocateHeap( GetProcessHeap(), 0, sizeof(*wm) ))) return NULL; wm->nDeps = 0; wm->deps = NULL; wm->ldr.BaseAddress = hModule; wm->ldr.EntryPoint = NULL; wm->ldr.SizeOfImage = nt->OptionalHeader.SizeOfImage; wm->ldr.Flags = LDR_DONT_RESOLVE_REFS; wm->ldr.LoadCount = 1; wm->ldr.TlsIndex = -1; wm->ldr.SectionHandle = NULL; wm->ldr.CheckSum = 0; wm->ldr.TimeDateStamp = 0; wm->ldr.ActivationContext = 0; RtlCreateUnicodeString( &wm->ldr.FullDllName, filename ); if ((p = strrchrW( wm->ldr.FullDllName.Buffer, '\\' ))) p++; else p = wm->ldr.FullDllName.Buffer; RtlInitUnicodeString( &wm->ldr.BaseDllName, p ); if (nt->FileHeader.Characteristics & IMAGE_FILE_DLL) { wm->ldr.Flags |= LDR_IMAGE_IS_DLL; if (nt->OptionalHeader.AddressOfEntryPoint) wm->ldr.EntryPoint = (char *)hModule + nt->OptionalHeader.AddressOfEntryPoint; } InsertTailList(&NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList, &wm->ldr.InLoadOrderModuleList); /* insert module in MemoryList, sorted in increasing base addresses */ mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList; for (entry = mark->Flink; entry != mark; entry = entry->Flink) { if (CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList)->BaseAddress > wm->ldr.BaseAddress) break; } entry->Blink->Flink = &wm->ldr.InMemoryOrderModuleList; wm->ldr.InMemoryOrderModuleList.Blink = entry->Blink; wm->ldr.InMemoryOrderModuleList.Flink = entry; entry->Blink = &wm->ldr.InMemoryOrderModuleList; /* wait until init is called for inserting into this list */ wm->ldr.InInitializationOrderModuleList.Flink = NULL; wm->ldr.InInitializationOrderModuleList.Blink = NULL; if (!(nt->OptionalHeader.DllCharacteristics & IMAGE_DLLCHARACTERISTICS_NX_COMPAT)) { WARN( "disabling no-exec because of %s\n", debugstr_w(wm->ldr.BaseDllName.Buffer) ); VIRTUAL_SetForceExec( TRUE ); } return wm; } /************************************************************************* * alloc_process_tls * * Allocate the process-wide structure for module TLS storage. */ static NTSTATUS alloc_process_tls(void) { PLIST_ENTRY mark, entry; PLDR_MODULE mod; const IMAGE_TLS_DIRECTORY *dir; ULONG size, i; mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList; for (entry = mark->Flink; entry != mark; entry = entry->Flink) { mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList); if (!(dir = RtlImageDirectoryEntryToData( mod->BaseAddress, TRUE, IMAGE_DIRECTORY_ENTRY_TLS, &size ))) continue; size = (dir->EndAddressOfRawData - dir->StartAddressOfRawData) + dir->SizeOfZeroFill; if (!size) continue; tls_total_size += size; tls_module_count++; } if (!tls_module_count) return STATUS_SUCCESS; TRACE( "count %u size %u\n", tls_module_count, tls_total_size ); tls_dirs = RtlAllocateHeap( GetProcessHeap(), 0, tls_module_count * sizeof(*tls_dirs) ); if (!tls_dirs) return STATUS_NO_MEMORY; for (i = 0, entry = mark->Flink; entry != mark; entry = entry->Flink) { mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList); if (!(dir = RtlImageDirectoryEntryToData( mod->BaseAddress, TRUE, IMAGE_DIRECTORY_ENTRY_TLS, &size ))) continue; tls_dirs[i] = dir; *(DWORD *)dir->AddressOfIndex = i; mod->TlsIndex = i; mod->LoadCount = -1; /* can't unload it */ i++; } return STATUS_SUCCESS; } /************************************************************************* * alloc_thread_tls * * Allocate the per-thread structure for module TLS storage. */ static NTSTATUS alloc_thread_tls(void) { void **pointers; char *data; UINT i; if (!tls_module_count) return STATUS_SUCCESS; if (!(pointers = RtlAllocateHeap( GetProcessHeap(), 0, tls_module_count * sizeof(*pointers) ))) return STATUS_NO_MEMORY; if (!(data = RtlAllocateHeap( GetProcessHeap(), 0, tls_total_size ))) { RtlFreeHeap( GetProcessHeap(), 0, pointers ); return STATUS_NO_MEMORY; } for (i = 0; i < tls_module_count; i++) { const IMAGE_TLS_DIRECTORY *dir = tls_dirs[i]; ULONG size = dir->EndAddressOfRawData - dir->StartAddressOfRawData; TRACE( "thread %04x idx %d: %d/%d bytes from %p to %p\n", GetCurrentThreadId(), i, size, dir->SizeOfZeroFill, (void *)dir->StartAddressOfRawData, data ); pointers[i] = data; memcpy( data, (void *)dir->StartAddressOfRawData, size ); data += size; memset( data, 0, dir->SizeOfZeroFill ); data += dir->SizeOfZeroFill; } NtCurrentTeb()->ThreadLocalStoragePointer = pointers; return STATUS_SUCCESS; } /************************************************************************* * call_tls_callbacks */ static void call_tls_callbacks( HMODULE module, UINT reason ) { const IMAGE_TLS_DIRECTORY *dir; const PIMAGE_TLS_CALLBACK *callback; ULONG dirsize; dir = RtlImageDirectoryEntryToData( module, TRUE, IMAGE_DIRECTORY_ENTRY_TLS, &dirsize ); if (!dir || !dir->AddressOfCallBacks) return; for (callback = (const PIMAGE_TLS_CALLBACK *)dir->AddressOfCallBacks; *callback; callback++) { if (TRACE_ON(relay)) DPRINTF("%04x:Call TLS callback (proc=%p,module=%p,reason=%s,reserved=0)\n", GetCurrentThreadId(), *callback, module, reason_names[reason] ); __TRY { (*callback)( module, reason, NULL ); } __EXCEPT(NULL) { if (TRACE_ON(relay)) DPRINTF("%04x:exception in TLS callback (proc=%p,module=%p,reason=%s,reserved=0)\n", GetCurrentThreadId(), callback, module, reason_names[reason] ); return; } __ENDTRY if (TRACE_ON(relay)) DPRINTF("%04x:Ret TLS callback (proc=%p,module=%p,reason=%s,reserved=0)\n", GetCurrentThreadId(), *callback, module, reason_names[reason] ); } } /************************************************************************* * MODULE_InitDLL */ static BOOL MODULE_InitDLL( WINE_MODREF *wm, UINT reason, LPVOID lpReserved ) { WCHAR mod_name[32]; BOOL retv = TRUE; DLLENTRYPROC entry = wm->ldr.EntryPoint; void *module = wm->ldr.BaseAddress; /* Skip calls for modules loaded with special load flags */ if (wm->ldr.Flags & LDR_DONT_RESOLVE_REFS) return TRUE; if (wm->ldr.TlsIndex != -1) call_tls_callbacks( wm->ldr.BaseAddress, reason ); if (!entry) return TRUE; if (TRACE_ON(relay)) { size_t len = min( wm->ldr.BaseDllName.Length, sizeof(mod_name)-sizeof(WCHAR) ); memcpy( mod_name, wm->ldr.BaseDllName.Buffer, len ); mod_name[len / sizeof(WCHAR)] = 0; DPRINTF("%04x:Call PE DLL (proc=%p,module=%p %s,reason=%s,res=%p)\n", GetCurrentThreadId(), entry, module, debugstr_w(mod_name), reason_names[reason], lpReserved ); } else TRACE("(%p %s,%s,%p) - CALL\n", module, debugstr_w(wm->ldr.BaseDllName.Buffer), reason_names[reason], lpReserved ); retv = call_dll_entry_point( entry, module, reason, lpReserved ); /* The state of the module list may have changed due to the call to the dll. We cannot assume that this module has not been deleted. */ if (TRACE_ON(relay)) DPRINTF("%04x:Ret PE DLL (proc=%p,module=%p %s,reason=%s,res=%p) retval=%x\n", GetCurrentThreadId(), entry, module, debugstr_w(mod_name), reason_names[reason], lpReserved, retv ); else TRACE("(%p,%s,%p) - RETURN %d\n", module, reason_names[reason], lpReserved, retv ); return retv; } /************************************************************************* * process_attach * * Send the process attach notification to all DLLs the given module * depends on (recursively). This is somewhat complicated due to the fact that * * - we have to respect the module dependencies, i.e. modules implicitly * referenced by another module have to be initialized before the module * itself can be initialized * * - the initialization routine of a DLL can itself call LoadLibrary, * thereby introducing a whole new set of dependencies (even involving * the 'old' modules) at any time during the whole process * * (Note that this routine can be recursively entered not only directly * from itself, but also via LoadLibrary from one of the called initialization * routines.) * * Furthermore, we need to rearrange the main WINE_MODREF list to allow * the process *detach* notifications to be sent in the correct order. * This must not only take into account module dependencies, but also * 'hidden' dependencies created by modules calling LoadLibrary in their * attach notification routine. * * The strategy is rather simple: we move a WINE_MODREF to the head of the * list after the attach notification has returned. This implies that the * detach notifications are called in the reverse of the sequence the attach * notifications *returned*. * * The loader_section must be locked while calling this function. */ static NTSTATUS process_attach( WINE_MODREF *wm, LPVOID lpReserved ) { NTSTATUS status = STATUS_SUCCESS; ULONG_PTR cookie; int i; if (process_detaching) return status; /* prevent infinite recursion in case of cyclical dependencies */ if ( ( wm->ldr.Flags & LDR_LOAD_IN_PROGRESS ) || ( wm->ldr.Flags & LDR_PROCESS_ATTACHED ) ) return status; TRACE("(%s,%p) - START\n", debugstr_w(wm->ldr.BaseDllName.Buffer), lpReserved ); /* Tag current MODREF to prevent recursive loop */ wm->ldr.Flags |= LDR_LOAD_IN_PROGRESS; if (lpReserved) wm->ldr.LoadCount = -1; /* pin it if imported by the main exe */ if (wm->ldr.ActivationContext) RtlActivateActivationContext( 0, wm->ldr.ActivationContext, &cookie ); /* Recursively attach all DLLs this one depends on */ for ( i = 0; i < wm->nDeps; i++ ) { if (!wm->deps[i]) continue; if ((status = process_attach( wm->deps[i], lpReserved )) != STATUS_SUCCESS) break; } /* Call DLL entry point */ if (status == STATUS_SUCCESS) { WINE_MODREF *prev = current_modref; current_modref = wm; if (MODULE_InitDLL( wm, DLL_PROCESS_ATTACH, lpReserved )) { wm->ldr.Flags |= LDR_PROCESS_ATTACHED; } else { /* point to the name so LdrInitializeThunk can print it */ last_failed_modref = wm; WARN("Initialization of %s failed\n", debugstr_w(wm->ldr.BaseDllName.Buffer)); status = STATUS_DLL_INIT_FAILED; } current_modref = prev; } if (!wm->ldr.InInitializationOrderModuleList.Flink) InsertTailList(&NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList, &wm->ldr.InInitializationOrderModuleList); if (wm->ldr.ActivationContext) RtlDeactivateActivationContext( 0, cookie ); /* Remove recursion flag */ wm->ldr.Flags &= ~LDR_LOAD_IN_PROGRESS; TRACE("(%s,%p) - END\n", debugstr_w(wm->ldr.BaseDllName.Buffer), lpReserved ); return status; } /********************************************************************** * attach_implicitly_loaded_dlls * * Attach to the (builtin) dlls that have been implicitly loaded because * of a dependency at the Unix level, but not imported at the Win32 level. */ static void attach_implicitly_loaded_dlls( LPVOID reserved ) { for (;;) { PLIST_ENTRY mark, entry; mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList; for (entry = mark->Flink; entry != mark; entry = entry->Flink) { LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList); if (mod->Flags & (LDR_LOAD_IN_PROGRESS | LDR_PROCESS_ATTACHED)) continue; TRACE( "found implicitly loaded %s, attaching to it\n", debugstr_w(mod->BaseDllName.Buffer)); process_attach( CONTAINING_RECORD(mod, WINE_MODREF, ldr), reserved ); break; /* restart the search from the start */ } if (entry == mark) break; /* nothing found */ } } /************************************************************************* * process_detach * * Send DLL process detach notifications. See the comment about calling * sequence at process_attach. Unless the bForceDetach flag * is set, only DLLs with zero refcount are notified. */ static void process_detach( BOOL bForceDetach, LPVOID lpReserved ) { PLIST_ENTRY mark, entry; PLDR_MODULE mod; RtlEnterCriticalSection( &loader_section ); if (bForceDetach) process_detaching = 1; mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList; do { for (entry = mark->Blink; entry != mark; entry = entry->Blink) { mod = CONTAINING_RECORD(entry, LDR_MODULE, InInitializationOrderModuleList); /* Check whether to detach this DLL */ if ( !(mod->Flags & LDR_PROCESS_ATTACHED) ) continue; if ( mod->LoadCount && !bForceDetach ) continue; /* Call detach notification */ mod->Flags &= ~LDR_PROCESS_ATTACHED; MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr), DLL_PROCESS_DETACH, lpReserved ); /* Restart at head of WINE_MODREF list, as entries might have been added and/or removed while performing the call ... */ break; } } while (entry != mark); RtlLeaveCriticalSection( &loader_section ); } /************************************************************************* * MODULE_DllThreadAttach * * Send DLL thread attach notifications. These are sent in the * reverse sequence of process detach notification. * */ NTSTATUS MODULE_DllThreadAttach( LPVOID lpReserved ) { PLIST_ENTRY mark, entry; PLDR_MODULE mod; NTSTATUS status; /* don't do any attach calls if process is exiting */ if (process_detaching) return STATUS_SUCCESS; /* FIXME: there is still a race here */ RtlEnterCriticalSection( &loader_section ); if ((status = alloc_thread_tls()) != STATUS_SUCCESS) goto done; mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList; for (entry = mark->Flink; entry != mark; entry = entry->Flink) { mod = CONTAINING_RECORD(entry, LDR_MODULE, InInitializationOrderModuleList); if ( !(mod->Flags & LDR_PROCESS_ATTACHED) ) continue; if ( mod->Flags & LDR_NO_DLL_CALLS ) continue; MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr), DLL_THREAD_ATTACH, lpReserved ); } done: RtlLeaveCriticalSection( &loader_section ); return status; } /****************************************************************** * LdrDisableThreadCalloutsForDll (NTDLL.@) * */ NTSTATUS WINAPI LdrDisableThreadCalloutsForDll(HMODULE hModule) { WINE_MODREF *wm; NTSTATUS ret = STATUS_SUCCESS; RtlEnterCriticalSection( &loader_section ); wm = get_modref( hModule ); if (!wm || wm->ldr.TlsIndex != -1) ret = STATUS_DLL_NOT_FOUND; else wm->ldr.Flags |= LDR_NO_DLL_CALLS; RtlLeaveCriticalSection( &loader_section ); return ret; } /****************************************************************** * LdrFindEntryForAddress (NTDLL.@) * * The loader_section must be locked while calling this function */ NTSTATUS WINAPI LdrFindEntryForAddress(const void* addr, PLDR_MODULE* pmod) { PLIST_ENTRY mark, entry; PLDR_MODULE mod; mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList; for (entry = mark->Flink; entry != mark; entry = entry->Flink) { mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList); if ((const void *)mod->BaseAddress <= addr && (const char *)addr < (char*)mod->BaseAddress + mod->SizeOfImage) { *pmod = mod; return STATUS_SUCCESS; } if ((const void *)mod->BaseAddress > addr) break; } return STATUS_NO_MORE_ENTRIES; } /****************************************************************** * LdrLockLoaderLock (NTDLL.@) * * Note: flags are not implemented. * Flag 0x01 is used to raise exceptions on errors. * Flag 0x02 is used to avoid waiting on the section (does RtlTryEnterCriticalSection instead). */ NTSTATUS WINAPI LdrLockLoaderLock( ULONG flags, ULONG *result, ULONG *magic ) { if (flags) FIXME( "flags %x not supported\n", flags ); if (result) *result = 1; if (!magic) return STATUS_INVALID_PARAMETER_3; RtlEnterCriticalSection( &loader_section ); *magic = GetCurrentThreadId(); return STATUS_SUCCESS; } /****************************************************************** * LdrUnlockLoaderUnlock (NTDLL.@) */ NTSTATUS WINAPI LdrUnlockLoaderLock( ULONG flags, ULONG magic ) { if (magic) { if (magic != GetCurrentThreadId()) return STATUS_INVALID_PARAMETER_2; RtlLeaveCriticalSection( &loader_section ); } return STATUS_SUCCESS; } /****************************************************************** * LdrGetProcedureAddress (NTDLL.@) */ NTSTATUS WINAPI LdrGetProcedureAddress(HMODULE module, const ANSI_STRING *name, ULONG ord, PVOID *address) { IMAGE_EXPORT_DIRECTORY *exports; DWORD exp_size; NTSTATUS ret = STATUS_PROCEDURE_NOT_FOUND; RtlEnterCriticalSection( &loader_section ); /* check if the module itself is invalid to return the proper error */ if (!get_modref( module )) ret = STATUS_DLL_NOT_FOUND; else if ((exports = RtlImageDirectoryEntryToData( module, TRUE, IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size ))) { void *proc = name ? find_named_export( module, exports, exp_size, name->Buffer, -1 ) : find_ordinal_export( module, exports, exp_size, ord - exports->Base ); if (proc) { *address = proc; ret = STATUS_SUCCESS; } } RtlLeaveCriticalSection( &loader_section ); return ret; } /*********************************************************************** * is_fake_dll * * Check if a loaded native dll is a Wine fake dll. */ static BOOL is_fake_dll( const void *base ) { static const char fakedll_signature[] = "Wine placeholder DLL"; const IMAGE_DOS_HEADER *dos = base; if (dos->e_lfanew >= sizeof(*dos) + sizeof(fakedll_signature) && !memcmp( dos + 1, fakedll_signature, sizeof(fakedll_signature) )) return TRUE; return FALSE; } /*********************************************************************** * get_builtin_fullname * * Build the full pathname for a builtin dll. */ static WCHAR *get_builtin_fullname( const WCHAR *path, const char *filename ) { static const WCHAR soW[] = {'.','s','o',0}; WCHAR *p, *fullname; size_t i, len = strlen(filename); /* check if path can correspond to the dll we have */ if (path && (p = strrchrW( path, '\\' ))) { p++; for (i = 0; i < len; i++) if (tolowerW(p[i]) != tolowerW( (WCHAR)filename[i]) ) break; if (i == len && (!p[len] || !strcmpiW( p + len, soW ))) { /* the filename matches, use path as the full path */ len += p - path; if ((fullname = RtlAllocateHeap( GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR) ))) { memcpy( fullname, path, len * sizeof(WCHAR) ); fullname[len] = 0; } return fullname; } } if ((fullname = RtlAllocateHeap( GetProcessHeap(), 0, system_dir.MaximumLength + (len + 1) * sizeof(WCHAR) ))) { memcpy( fullname, system_dir.Buffer, system_dir.Length ); p = fullname + system_dir.Length / sizeof(WCHAR); if (p > fullname && p[-1] != '\\') *p++ = '\\'; ascii_to_unicode( p, filename, len + 1 ); } return fullname; } /*********************************************************************** * load_builtin_callback * * Load a library in memory; callback function for wine_dll_register */ static void load_builtin_callback( void *module, const char *filename ) { static const WCHAR emptyW[1]; void *addr; IMAGE_NT_HEADERS *nt; WINE_MODREF *wm; WCHAR *fullname; const WCHAR *load_path; SIZE_T size; if (!module) { ERR("could not map image for %s\n", filename ? filename : "main exe" ); return; } if (!(nt = RtlImageNtHeader( module ))) { ERR( "bad module for %s\n", filename ? filename : "main exe" ); builtin_load_info->status = STATUS_INVALID_IMAGE_FORMAT; return; } addr = module; size = nt->OptionalHeader.SizeOfImage; NtAllocateVirtualMemory( NtCurrentProcess(), &addr, 0, &size, MEM_SYSTEM | MEM_IMAGE, PAGE_EXECUTE_WRITECOPY ); /* create the MODREF */ if (!(fullname = get_builtin_fullname( builtin_load_info->filename, filename ))) { ERR( "can't load %s\n", filename ); builtin_load_info->status = STATUS_NO_MEMORY; return; } wm = alloc_module( module, fullname ); RtlFreeHeap( GetProcessHeap(), 0, fullname ); if (!wm) { ERR( "can't load %s\n", filename ); builtin_load_info->status = STATUS_NO_MEMORY; return; } wm->ldr.Flags |= LDR_WINE_INTERNAL; if (!(nt->FileHeader.Characteristics & IMAGE_FILE_DLL) && !NtCurrentTeb()->Peb->ImageBaseAddress) /* if we already have an executable, ignore this one */ { NtCurrentTeb()->Peb->ImageBaseAddress = module; } else { /* fixup imports */ load_path = builtin_load_info->load_path; if (!load_path) load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer; if (!load_path) load_path = emptyW; if (fixup_imports( wm, load_path ) != STATUS_SUCCESS) { /* the module has only be inserted in the load & memory order lists */ RemoveEntryList(&wm->ldr.InLoadOrderModuleList); RemoveEntryList(&wm->ldr.InMemoryOrderModuleList); /* FIXME: free the modref */ builtin_load_info->status = STATUS_DLL_NOT_FOUND; return; } } builtin_load_info->wm = wm; TRACE( "loaded %s %p %p\n", filename, wm, module ); /* send the DLL load event */ SERVER_START_REQ( load_dll ) { req->handle = 0; req->base = module; req->size = nt->OptionalHeader.SizeOfImage; req->dbg_offset = nt->FileHeader.PointerToSymbolTable; req->dbg_size = nt->FileHeader.NumberOfSymbols; req->name = &wm->ldr.FullDllName.Buffer; wine_server_add_data( req, wm->ldr.FullDllName.Buffer, wm->ldr.FullDllName.Length ); wine_server_call( req ); } SERVER_END_REQ; /* setup relay debugging entry points */ if (TRACE_ON(relay)) RELAY_SetupDLL( module ); } /****************************************************************************** * load_native_dll (internal) */ static NTSTATUS load_native_dll( LPCWSTR load_path, LPCWSTR name, HANDLE file, DWORD flags, WINE_MODREF** pwm ) { void *module; HANDLE mapping; OBJECT_ATTRIBUTES attr; LARGE_INTEGER size; IMAGE_NT_HEADERS *nt; SIZE_T len = 0; WINE_MODREF *wm; NTSTATUS status; TRACE("Trying native dll %s\n", debugstr_w(name)); attr.Length = sizeof(attr); attr.RootDirectory = 0; attr.ObjectName = NULL; attr.Attributes = 0; attr.SecurityDescriptor = NULL; attr.SecurityQualityOfService = NULL; size.QuadPart = 0; status = NtCreateSection( &mapping, STANDARD_RIGHTS_REQUIRED | SECTION_QUERY | SECTION_MAP_READ, &attr, &size, 0, SEC_IMAGE, file ); if (status != STATUS_SUCCESS) return status; module = NULL; status = NtMapViewOfSection( mapping, NtCurrentProcess(), &module, 0, 0, &size, &len, ViewShare, 0, PAGE_READONLY ); NtClose( mapping ); if (status != STATUS_SUCCESS) return status; if (is_fake_dll( module )) { TRACE( "%s is a fake dll, not loading it\n", debugstr_w(name) ); NtUnmapViewOfSection( NtCurrentProcess(), module ); return STATUS_DLL_NOT_FOUND; } /* create the MODREF */ if (!(wm = alloc_module( module, name ))) return STATUS_NO_MEMORY; /* fixup imports */ if (!(flags & DONT_RESOLVE_DLL_REFERENCES)) { if ((status = fixup_imports( wm, load_path )) != STATUS_SUCCESS) { /* the module has only be inserted in the load & memory order lists */ RemoveEntryList(&wm->ldr.InLoadOrderModuleList); RemoveEntryList(&wm->ldr.InMemoryOrderModuleList); /* FIXME: there are several more dangling references * left. Including dlls loaded by this dll before the * failed one. Unrolling is rather difficult with the * current structure and we can leave them lying * around with no problems, so we don't care. * As these might reference our wm, we don't free it. */ return status; } } /* send DLL load event */ nt = RtlImageNtHeader( module ); SERVER_START_REQ( load_dll ) { req->handle = file; req->base = module; req->size = nt->OptionalHeader.SizeOfImage; req->dbg_offset = nt->FileHeader.PointerToSymbolTable; req->dbg_size = nt->FileHeader.NumberOfSymbols; req->name = &wm->ldr.FullDllName.Buffer; wine_server_add_data( req, wm->ldr.FullDllName.Buffer, wm->ldr.FullDllName.Length ); wine_server_call( req ); } SERVER_END_REQ; if ((wm->ldr.Flags & LDR_IMAGE_IS_DLL) && TRACE_ON(snoop)) SNOOP_SetupDLL( module ); TRACE_(loaddll)( "Loaded %s at %p: native\n", debugstr_w(wm->ldr.FullDllName.Buffer), module ); wm->ldr.LoadCount = 1; *pwm = wm; return STATUS_SUCCESS; } /*********************************************************************** * load_builtin_dll */ static NTSTATUS load_builtin_dll( LPCWSTR load_path, LPCWSTR path, HANDLE file, DWORD flags, WINE_MODREF** pwm ) { char error[256], dllname[MAX_PATH]; const WCHAR *name, *p; DWORD len, i; void *handle = NULL; struct builtin_load_info info, *prev_info; /* Fix the name in case we have a full path and extension */ name = path; if ((p = strrchrW( name, '\\' ))) name = p + 1; if ((p = strrchrW( name, '/' ))) name = p + 1; /* load_library will modify info.status. Note also that load_library can be * called several times, if the .so file we're loading has dependencies. * info.status will gather all the errors we may get while loading all these * libraries */ info.load_path = load_path; info.filename = NULL; info.status = STATUS_SUCCESS; info.wm = NULL; if (file) /* we have a real file, try to load it */ { UNICODE_STRING nt_name; ANSI_STRING unix_name; TRACE("Trying built-in %s\n", debugstr_w(path)); if (!RtlDosPathNameToNtPathName_U( path, &nt_name, NULL, NULL )) return STATUS_DLL_NOT_FOUND; if (wine_nt_to_unix_file_name( &nt_name, &unix_name, FILE_OPEN, FALSE )) { RtlFreeUnicodeString( &nt_name ); return STATUS_DLL_NOT_FOUND; } prev_info = builtin_load_info; info.filename = nt_name.Buffer + 4; /* skip \??\ */ builtin_load_info = &info; handle = wine_dlopen( unix_name.Buffer, RTLD_NOW, error, sizeof(error) ); builtin_load_info = prev_info; RtlFreeUnicodeString( &nt_name ); RtlFreeHeap( GetProcessHeap(), 0, unix_name.Buffer ); if (!handle) { WARN( "failed to load .so lib for builtin %s: %s\n", debugstr_w(path), error ); return STATUS_INVALID_IMAGE_FORMAT; } } else { int file_exists; TRACE("Trying built-in %s\n", debugstr_w(name)); /* we don't want to depend on the current codepage here */ len = strlenW( name ) + 1; if (len >= sizeof(dllname)) return STATUS_NAME_TOO_LONG; for (i = 0; i < len; i++) { if (name[i] > 127) return STATUS_DLL_NOT_FOUND; dllname[i] = (char)name[i]; if (dllname[i] >= 'A' && dllname[i] <= 'Z') dllname[i] += 'a' - 'A'; } prev_info = builtin_load_info; builtin_load_info = &info; handle = wine_dll_load( dllname, error, sizeof(error), &file_exists ); builtin_load_info = prev_info; if (!handle) { if (!file_exists) { /* The file does not exist -> WARN() */ WARN("cannot open .so lib for builtin %s: %s\n", debugstr_w(name), error); return STATUS_DLL_NOT_FOUND; } /* ERR() for all other errors (missing functions, ...) */ ERR("failed to load .so lib for builtin %s: %s\n", debugstr_w(name), error ); return STATUS_PROCEDURE_NOT_FOUND; } } if (info.status != STATUS_SUCCESS) { wine_dll_unload( handle ); return info.status; } if (!info.wm) { PLIST_ENTRY mark, entry; /* The constructor wasn't called, this means the .so is already * loaded under a different name. Try to find the wm for it. */ mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList; for (entry = mark->Flink; entry != mark; entry = entry->Flink) { LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList); if (mod->Flags & LDR_WINE_INTERNAL && mod->SectionHandle == handle) { info.wm = CONTAINING_RECORD(mod, WINE_MODREF, ldr); TRACE( "Found %s at %p for builtin %s\n", debugstr_w(info.wm->ldr.FullDllName.Buffer), info.wm->ldr.BaseAddress, debugstr_w(path) ); break; } } wine_dll_unload( handle ); /* release the libdl refcount */ if (!info.wm) return STATUS_INVALID_IMAGE_FORMAT; if (info.wm->ldr.LoadCount != -1) info.wm->ldr.LoadCount++; } else { TRACE_(loaddll)( "Loaded %s at %p: builtin\n", debugstr_w(info.wm->ldr.FullDllName.Buffer), info.wm->ldr.BaseAddress ); info.wm->ldr.LoadCount = 1; info.wm->ldr.SectionHandle = handle; } *pwm = info.wm; return STATUS_SUCCESS; } /*********************************************************************** * find_actctx_dll * * Find the full path (if any) of the dll from the activation context. */ static NTSTATUS find_actctx_dll( LPCWSTR libname, LPWSTR *fullname ) { static const WCHAR winsxsW[] = {'\\','w','i','n','s','x','s','\\'}; static const WCHAR dotManifestW[] = {'.','m','a','n','i','f','e','s','t',0}; ACTIVATION_CONTEXT_ASSEMBLY_DETAILED_INFORMATION *info; ACTCTX_SECTION_KEYED_DATA data; UNICODE_STRING nameW; NTSTATUS status; SIZE_T needed, size = 1024; WCHAR *p; RtlInitUnicodeString( &nameW, libname ); data.cbSize = sizeof(data); status = RtlFindActivationContextSectionString( FIND_ACTCTX_SECTION_KEY_RETURN_HACTCTX, NULL, ACTIVATION_CONTEXT_SECTION_DLL_REDIRECTION, &nameW, &data ); if (status != STATUS_SUCCESS) return status; for (;;) { if (!(info = RtlAllocateHeap( GetProcessHeap(), 0, size ))) { status = STATUS_NO_MEMORY; goto done; } status = RtlQueryInformationActivationContext( 0, data.hActCtx, &data.ulAssemblyRosterIndex, AssemblyDetailedInformationInActivationContext, info, size, &needed ); if (status == STATUS_SUCCESS) break; if (status != STATUS_BUFFER_TOO_SMALL) goto done; RtlFreeHeap( GetProcessHeap(), 0, info ); size = needed; /* restart with larger buffer */ } if ((p = strrchrW( info->lpAssemblyManifestPath, '\\' ))) { DWORD dirlen = info->ulAssemblyDirectoryNameLength / sizeof(WCHAR); p++; if (strncmpiW( p, info->lpAssemblyDirectoryName, dirlen ) || strcmpiW( p + dirlen, dotManifestW )) { /* manifest name does not match directory name, so it's not a global * windows/winsxs manifest; use the manifest directory name instead */ dirlen = p - info->lpAssemblyManifestPath; needed = (dirlen + 1) * sizeof(WCHAR) + nameW.Length; if (!(*fullname = p = RtlAllocateHeap( GetProcessHeap(), 0, needed ))) { status = STATUS_NO_MEMORY; goto done; } memcpy( p, info->lpAssemblyManifestPath, dirlen * sizeof(WCHAR) ); p += dirlen; strcpyW( p, libname ); goto done; } } needed = (windows_dir.Length + sizeof(winsxsW) + info->ulAssemblyDirectoryNameLength + nameW.Length + 2*sizeof(WCHAR)); if (!(*fullname = p = RtlAllocateHeap( GetProcessHeap(), 0, needed ))) { status = STATUS_NO_MEMORY; goto done; } memcpy( p, windows_dir.Buffer, windows_dir.Length ); p += windows_dir.Length / sizeof(WCHAR); memcpy( p, winsxsW, sizeof(winsxsW) ); p += sizeof(winsxsW) / sizeof(WCHAR); memcpy( p, info->lpAssemblyDirectoryName, info->ulAssemblyDirectoryNameLength ); p += info->ulAssemblyDirectoryNameLength / sizeof(WCHAR); *p++ = '\\'; strcpyW( p, libname ); done: RtlFreeHeap( GetProcessHeap(), 0, info ); RtlReleaseActivationContext( data.hActCtx ); return status; } /*********************************************************************** * find_dll_file * * Find the file (or already loaded module) for a given dll name. */ static NTSTATUS find_dll_file( const WCHAR *load_path, const WCHAR *libname, WCHAR *filename, ULONG *size, WINE_MODREF **pwm, HANDLE *handle ) { OBJECT_ATTRIBUTES attr; IO_STATUS_BLOCK io; UNICODE_STRING nt_name; WCHAR *file_part, *ext, *dllname; ULONG len; /* first append .dll if needed */ dllname = NULL; if (!(ext = strrchrW( libname, '.')) || strchrW( ext, '/' ) || strchrW( ext, '\\')) { if (!(dllname = RtlAllocateHeap( GetProcessHeap(), 0, (strlenW(libname) * sizeof(WCHAR)) + sizeof(dllW) ))) return STATUS_NO_MEMORY; strcpyW( dllname, libname ); strcatW( dllname, dllW ); libname = dllname; } nt_name.Buffer = NULL; if (!contains_path( libname )) { NTSTATUS status; WCHAR *fullname = NULL; if ((*pwm = find_basename_module( libname )) != NULL) goto found; status = find_actctx_dll( libname, &fullname ); if (status == STATUS_SUCCESS) { TRACE ("found %s for %s\n", debugstr_w(fullname), debugstr_w(libname) ); RtlFreeHeap( GetProcessHeap(), 0, dllname ); libname = dllname = fullname; } else if (status != STATUS_SXS_KEY_NOT_FOUND) { RtlFreeHeap( GetProcessHeap(), 0, dllname ); return status; } } if (RtlDetermineDosPathNameType_U( libname ) == RELATIVE_PATH) { /* we need to search for it */ len = RtlDosSearchPath_U( load_path, libname, NULL, *size, filename, &file_part ); if (len) { if (len >= *size) goto overflow; if ((*pwm = find_fullname_module( filename )) || !handle) goto found; if (!RtlDosPathNameToNtPathName_U( filename, &nt_name, NULL, NULL )) { RtlFreeHeap( GetProcessHeap(), 0, dllname ); return STATUS_NO_MEMORY; } attr.Length = sizeof(attr); attr.RootDirectory = 0; attr.Attributes = OBJ_CASE_INSENSITIVE; attr.ObjectName = &nt_name; attr.SecurityDescriptor = NULL; attr.SecurityQualityOfService = NULL; if (NtOpenFile( handle, GENERIC_READ, &attr, &io, FILE_SHARE_READ|FILE_SHARE_DELETE, 0 )) *handle = 0; goto found; } /* not found */ if (!contains_path( libname )) { /* if libname doesn't contain a path at all, we simply return the name as is, * to be loaded as builtin */ len = strlenW(libname) * sizeof(WCHAR); if (len >= *size) goto overflow; strcpyW( filename, libname ); goto found; } } /* absolute path name, or relative path name but not found above */ if (!RtlDosPathNameToNtPathName_U( libname, &nt_name, &file_part, NULL )) { RtlFreeHeap( GetProcessHeap(), 0, dllname ); return STATUS_NO_MEMORY; } len = nt_name.Length - 4*sizeof(WCHAR); /* for \??\ prefix */ if (len >= *size) goto overflow; memcpy( filename, nt_name.Buffer + 4, len + sizeof(WCHAR) ); if (!(*pwm = find_fullname_module( filename )) && handle) { attr.Length = sizeof(attr); attr.RootDirectory = 0; attr.Attributes = OBJ_CASE_INSENSITIVE; attr.ObjectName = &nt_name; attr.SecurityDescriptor = NULL; attr.SecurityQualityOfService = NULL; if (NtOpenFile( handle, GENERIC_READ, &attr, &io, FILE_SHARE_READ|FILE_SHARE_DELETE, 0 )) *handle = 0; } found: RtlFreeUnicodeString( &nt_name ); RtlFreeHeap( GetProcessHeap(), 0, dllname ); return STATUS_SUCCESS; overflow: RtlFreeUnicodeString( &nt_name ); RtlFreeHeap( GetProcessHeap(), 0, dllname ); *size = len + sizeof(WCHAR); return STATUS_BUFFER_TOO_SMALL; } /*********************************************************************** * load_dll (internal) * * Load a PE style module according to the load order. * The loader_section must be locked while calling this function. */ static NTSTATUS load_dll( LPCWSTR load_path, LPCWSTR libname, DWORD flags, WINE_MODREF** pwm ) { enum loadorder loadorder; WCHAR buffer[32]; WCHAR *filename; ULONG size; WINE_MODREF *main_exe; HANDLE handle = 0; NTSTATUS nts; TRACE( "looking for %s in %s\n", debugstr_w(libname), debugstr_w(load_path) ); filename = buffer; size = sizeof(buffer); for (;;) { nts = find_dll_file( load_path, libname, filename, &size, pwm, &handle ); if (nts == STATUS_SUCCESS) break; if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename ); if (nts != STATUS_BUFFER_TOO_SMALL) return nts; /* grow the buffer and retry */ if (!(filename = RtlAllocateHeap( GetProcessHeap(), 0, size ))) return STATUS_NO_MEMORY; } if (*pwm) /* found already loaded module */ { if ((*pwm)->ldr.LoadCount != -1) (*pwm)->ldr.LoadCount++; if (!(flags & DONT_RESOLVE_DLL_REFERENCES)) fixup_imports( *pwm, load_path ); TRACE("Found %s for %s at %p, count=%d\n", debugstr_w((*pwm)->ldr.FullDllName.Buffer), debugstr_w(libname), (*pwm)->ldr.BaseAddress, (*pwm)->ldr.LoadCount); if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename ); return STATUS_SUCCESS; } main_exe = get_modref( NtCurrentTeb()->Peb->ImageBaseAddress ); loadorder = get_load_order( main_exe ? main_exe->ldr.BaseDllName.Buffer : NULL, filename ); switch(loadorder) { case LO_INVALID: nts = STATUS_NO_MEMORY; break; case LO_DISABLED: nts = STATUS_DLL_NOT_FOUND; break; case LO_NATIVE: case LO_NATIVE_BUILTIN: if (!handle) nts = STATUS_DLL_NOT_FOUND; else { nts = load_native_dll( load_path, filename, handle, flags, pwm ); if (nts == STATUS_INVALID_FILE_FOR_SECTION) /* not in PE format, maybe it's a builtin */ nts = load_builtin_dll( load_path, filename, handle, flags, pwm ); } if (nts == STATUS_DLL_NOT_FOUND && loadorder == LO_NATIVE_BUILTIN) nts = load_builtin_dll( load_path, filename, 0, flags, pwm ); break; case LO_BUILTIN: case LO_BUILTIN_NATIVE: case LO_DEFAULT: /* default is builtin,native */ nts = load_builtin_dll( load_path, filename, handle, flags, pwm ); if (!handle) break; /* nothing else we can try */ /* file is not a builtin library, try without using the specified file */ if (nts != STATUS_SUCCESS) nts = load_builtin_dll( load_path, filename, 0, flags, pwm ); if (nts == STATUS_SUCCESS && loadorder == LO_DEFAULT && !MODULE_InitDLL( *pwm, DLL_WINE_PREATTACH, NULL )) { /* stub-only dll, try native */ TRACE( "%s pre-attach returned FALSE, preferring native\n", debugstr_w(filename) ); LdrUnloadDll( (*pwm)->ldr.BaseAddress ); nts = STATUS_DLL_NOT_FOUND; } if (nts == STATUS_DLL_NOT_FOUND && loadorder != LO_BUILTIN) nts = load_native_dll( load_path, filename, handle, flags, pwm ); break; } if (nts == STATUS_SUCCESS) { /* Initialize DLL just loaded */ TRACE("Loaded module %s (%s) at %p\n", debugstr_w(filename), ((*pwm)->ldr.Flags & LDR_WINE_INTERNAL) ? "builtin" : "native", (*pwm)->ldr.BaseAddress); if (handle) NtClose( handle ); if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename ); return nts; } WARN("Failed to load module %s; status=%x\n", debugstr_w(libname), nts); if (handle) NtClose( handle ); if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename ); return nts; } /****************************************************************** * LdrLoadDll (NTDLL.@) */ NTSTATUS WINAPI LdrLoadDll(LPCWSTR path_name, DWORD flags, const UNICODE_STRING *libname, HMODULE* hModule) { WINE_MODREF *wm; NTSTATUS nts; RtlEnterCriticalSection( &loader_section ); if (!path_name) path_name = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer; nts = load_dll( path_name, libname->Buffer, flags, &wm ); if (nts == STATUS_SUCCESS && !(wm->ldr.Flags & LDR_DONT_RESOLVE_REFS)) { nts = process_attach( wm, NULL ); if (nts != STATUS_SUCCESS) { LdrUnloadDll(wm->ldr.BaseAddress); wm = NULL; } } *hModule = (wm) ? wm->ldr.BaseAddress : NULL; RtlLeaveCriticalSection( &loader_section ); return nts; } /****************************************************************** * LdrGetDllHandle (NTDLL.@) */ NTSTATUS WINAPI LdrGetDllHandle( LPCWSTR load_path, ULONG flags, const UNICODE_STRING *name, HMODULE *base ) { NTSTATUS status; WCHAR buffer[128]; WCHAR *filename; ULONG size; WINE_MODREF *wm; RtlEnterCriticalSection( &loader_section ); if (!load_path) load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer; filename = buffer; size = sizeof(buffer); for (;;) { status = find_dll_file( load_path, name->Buffer, filename, &size, &wm, NULL ); if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename ); if (status != STATUS_BUFFER_TOO_SMALL) break; /* grow the buffer and retry */ if (!(filename = RtlAllocateHeap( GetProcessHeap(), 0, size ))) { status = STATUS_NO_MEMORY; break; } } if (status == STATUS_SUCCESS) { if (wm) *base = wm->ldr.BaseAddress; else status = STATUS_DLL_NOT_FOUND; } RtlLeaveCriticalSection( &loader_section ); TRACE( "%s -> %p (load path %s)\n", debugstr_us(name), status ? NULL : *base, debugstr_w(load_path) ); return status; } /****************************************************************** * LdrAddRefDll (NTDLL.@) */ NTSTATUS WINAPI LdrAddRefDll( ULONG flags, HMODULE module ) { NTSTATUS ret = STATUS_SUCCESS; WINE_MODREF *wm; if (flags) FIXME( "%p flags %x not implemented\n", module, flags ); RtlEnterCriticalSection( &loader_section ); if ((wm = get_modref( module ))) { if (wm->ldr.LoadCount != -1) wm->ldr.LoadCount++; TRACE( "(%s) ldr.LoadCount: %d\n", debugstr_w(wm->ldr.BaseDllName.Buffer), wm->ldr.LoadCount ); } else ret = STATUS_INVALID_PARAMETER; RtlLeaveCriticalSection( &loader_section ); return ret; } /****************************************************************** * LdrQueryProcessModuleInformation * */ NTSTATUS WINAPI LdrQueryProcessModuleInformation(PSYSTEM_MODULE_INFORMATION smi, ULONG buf_size, ULONG* req_size) { SYSTEM_MODULE* sm = &smi->Modules[0]; ULONG size = sizeof(ULONG); NTSTATUS nts = STATUS_SUCCESS; ANSI_STRING str; char* ptr; PLIST_ENTRY mark, entry; PLDR_MODULE mod; WORD id = 0; smi->ModulesCount = 0; RtlEnterCriticalSection( &loader_section ); mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList; for (entry = mark->Flink; entry != mark; entry = entry->Flink) { mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList); size += sizeof(*sm); if (size <= buf_size) { sm->Reserved1 = 0; /* FIXME */ sm->Reserved2 = 0; /* FIXME */ sm->ImageBaseAddress = mod->BaseAddress; sm->ImageSize = mod->SizeOfImage; sm->Flags = mod->Flags; sm->Id = id++; sm->Rank = 0; /* FIXME */ sm->Unknown = 0; /* FIXME */ str.Length = 0; str.MaximumLength = MAXIMUM_FILENAME_LENGTH; str.Buffer = (char*)sm->Name; RtlUnicodeStringToAnsiString(&str, &mod->FullDllName, FALSE); ptr = strrchr(str.Buffer, '\\'); sm->NameOffset = (ptr != NULL) ? (ptr - str.Buffer + 1) : 0; smi->ModulesCount++; sm++; } else nts = STATUS_INFO_LENGTH_MISMATCH; } RtlLeaveCriticalSection( &loader_section ); if (req_size) *req_size = size; return nts; } /****************************************************************** * RtlDllShutdownInProgress (NTDLL.@) */ BOOLEAN WINAPI RtlDllShutdownInProgress(void) { return process_detaching; } /****************************************************************** * LdrShutdownProcess (NTDLL.@) * */ void WINAPI LdrShutdownProcess(void) { TRACE("()\n"); process_detach( TRUE, (LPVOID)1 ); } /****************************************************************** * LdrShutdownThread (NTDLL.@) * */ void WINAPI LdrShutdownThread(void) { PLIST_ENTRY mark, entry; PLDR_MODULE mod; TRACE("()\n"); /* don't do any detach calls if process is exiting */ if (process_detaching) return; /* FIXME: there is still a race here */ RtlEnterCriticalSection( &loader_section ); mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList; for (entry = mark->Blink; entry != mark; entry = entry->Blink) { mod = CONTAINING_RECORD(entry, LDR_MODULE, InInitializationOrderModuleList); if ( !(mod->Flags & LDR_PROCESS_ATTACHED) ) continue; if ( mod->Flags & LDR_NO_DLL_CALLS ) continue; MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr), DLL_THREAD_DETACH, NULL ); } RtlLeaveCriticalSection( &loader_section ); RtlFreeHeap( GetProcessHeap(), 0, NtCurrentTeb()->ThreadLocalStoragePointer ); } /*********************************************************************** * free_modref * */ static void free_modref( WINE_MODREF *wm ) { RemoveEntryList(&wm->ldr.InLoadOrderModuleList); RemoveEntryList(&wm->ldr.InMemoryOrderModuleList); if (wm->ldr.InInitializationOrderModuleList.Flink) RemoveEntryList(&wm->ldr.InInitializationOrderModuleList); TRACE(" unloading %s\n", debugstr_w(wm->ldr.FullDllName.Buffer)); if (!TRACE_ON(module)) TRACE_(loaddll)("Unloaded module %s : %s\n", debugstr_w(wm->ldr.FullDllName.Buffer), (wm->ldr.Flags & LDR_WINE_INTERNAL) ? "builtin" : "native" ); SERVER_START_REQ( unload_dll ) { req->base = wm->ldr.BaseAddress; wine_server_call( req ); } SERVER_END_REQ; RtlReleaseActivationContext( wm->ldr.ActivationContext ); NtUnmapViewOfSection( NtCurrentProcess(), wm->ldr.BaseAddress ); if (wm->ldr.Flags & LDR_WINE_INTERNAL) wine_dll_unload( wm->ldr.SectionHandle ); if (cached_modref == wm) cached_modref = NULL; RtlFreeUnicodeString( &wm->ldr.FullDllName ); RtlFreeHeap( GetProcessHeap(), 0, wm->deps ); RtlFreeHeap( GetProcessHeap(), 0, wm ); } /*********************************************************************** * MODULE_FlushModrefs * * Remove all unused modrefs and call the internal unloading routines * for the library type. * * The loader_section must be locked while calling this function. */ static void MODULE_FlushModrefs(void) { PLIST_ENTRY mark, entry, prev; PLDR_MODULE mod; WINE_MODREF*wm; mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList; for (entry = mark->Blink; entry != mark; entry = prev) { mod = CONTAINING_RECORD(entry, LDR_MODULE, InInitializationOrderModuleList); wm = CONTAINING_RECORD(mod, WINE_MODREF, ldr); prev = entry->Blink; if (!mod->LoadCount) free_modref( wm ); } /* check load order list too for modules that haven't been initialized yet */ mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList; for (entry = mark->Blink; entry != mark; entry = prev) { mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList); wm = CONTAINING_RECORD(mod, WINE_MODREF, ldr); prev = entry->Blink; if (!mod->LoadCount) free_modref( wm ); } } /*********************************************************************** * MODULE_DecRefCount * * The loader_section must be locked while calling this function. */ static void MODULE_DecRefCount( WINE_MODREF *wm ) { int i; if ( wm->ldr.Flags & LDR_UNLOAD_IN_PROGRESS ) return; if ( wm->ldr.LoadCount <= 0 ) return; --wm->ldr.LoadCount; TRACE("(%s) ldr.LoadCount: %d\n", debugstr_w(wm->ldr.BaseDllName.Buffer), wm->ldr.LoadCount ); if ( wm->ldr.LoadCount == 0 ) { wm->ldr.Flags |= LDR_UNLOAD_IN_PROGRESS; for ( i = 0; i < wm->nDeps; i++ ) if ( wm->deps[i] ) MODULE_DecRefCount( wm->deps[i] ); wm->ldr.Flags &= ~LDR_UNLOAD_IN_PROGRESS; } } /****************************************************************** * LdrUnloadDll (NTDLL.@) * * */ NTSTATUS WINAPI LdrUnloadDll( HMODULE hModule ) { NTSTATUS retv = STATUS_SUCCESS; TRACE("(%p)\n", hModule); RtlEnterCriticalSection( &loader_section ); /* if we're stopping the whole process (and forcing the removal of all * DLLs) the library will be freed anyway */ if (!process_detaching) { WINE_MODREF *wm; free_lib_count++; if ((wm = get_modref( hModule )) != NULL) { TRACE("(%s) - START\n", debugstr_w(wm->ldr.BaseDllName.Buffer)); /* Recursively decrement reference counts */ MODULE_DecRefCount( wm ); /* Call process detach notifications */ if ( free_lib_count <= 1 ) { process_detach( FALSE, NULL ); MODULE_FlushModrefs(); } TRACE("END\n"); } else retv = STATUS_DLL_NOT_FOUND; free_lib_count--; } RtlLeaveCriticalSection( &loader_section ); return retv; } /*********************************************************************** * RtlImageNtHeader (NTDLL.@) */ PIMAGE_NT_HEADERS WINAPI RtlImageNtHeader(HMODULE hModule) { IMAGE_NT_HEADERS *ret; __TRY { IMAGE_DOS_HEADER *dos = (IMAGE_DOS_HEADER *)hModule; ret = NULL; if (dos->e_magic == IMAGE_DOS_SIGNATURE) { ret = (IMAGE_NT_HEADERS *)((char *)dos + dos->e_lfanew); if (ret->Signature != IMAGE_NT_SIGNATURE) ret = NULL; } } __EXCEPT_PAGE_FAULT { return NULL; } __ENDTRY return ret; } /****************************************************************** * LdrInitializeThunk (NTDLL.@) * */ void WINAPI LdrInitializeThunk( ULONG unknown1, ULONG unknown2, ULONG unknown3, ULONG unknown4 ) { NTSTATUS status; WINE_MODREF *wm; LPCWSTR load_path; PEB *peb = NtCurrentTeb()->Peb; IMAGE_NT_HEADERS *nt = RtlImageNtHeader( peb->ImageBaseAddress ); if (main_exe_file) NtClose( main_exe_file ); /* at this point the main module is created */ /* allocate the modref for the main exe (if not already done) */ wm = get_modref( peb->ImageBaseAddress ); assert( wm ); if (wm->ldr.Flags & LDR_IMAGE_IS_DLL) { ERR("%s is a dll, not an executable\n", debugstr_w(wm->ldr.FullDllName.Buffer) ); exit(1); } peb->LoaderLock = &loader_section; peb->ProcessParameters->ImagePathName = wm->ldr.FullDllName; version_init( wm->ldr.FullDllName.Buffer ); /* the main exe needs to be the first in the load order list */ RemoveEntryList( &wm->ldr.InLoadOrderModuleList ); InsertHeadList( &peb->LdrData->InLoadOrderModuleList, &wm->ldr.InLoadOrderModuleList ); status = server_init_process_done(); if (status != STATUS_SUCCESS) goto error; RtlEnterCriticalSection( &loader_section ); actctx_init(); load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer; if ((status = fixup_imports( wm, load_path )) != STATUS_SUCCESS) goto error; if ((status = alloc_process_tls()) != STATUS_SUCCESS) goto error; if ((status = alloc_thread_tls()) != STATUS_SUCCESS) goto error; if ((status = process_attach( wm, (LPVOID)1 )) != STATUS_SUCCESS) { if (last_failed_modref) ERR( "%s failed to initialize, aborting\n", debugstr_w(last_failed_modref->ldr.BaseDllName.Buffer) + 1 ); goto error; } attach_implicitly_loaded_dlls( (LPVOID)1 ); RtlLeaveCriticalSection( &loader_section ); if (nt->FileHeader.Characteristics & IMAGE_FILE_LARGE_ADDRESS_AWARE) VIRTUAL_UseLargeAddressSpace(); return; error: ERR( "Main exe initialization for %s failed, status %x\n", debugstr_w(peb->ProcessParameters->ImagePathName.Buffer), status ); NtTerminateProcess( GetCurrentProcess(), status ); } /*********************************************************************** * RtlImageDirectoryEntryToData (NTDLL.@) */ PVOID WINAPI RtlImageDirectoryEntryToData( HMODULE module, BOOL image, WORD dir, ULONG *size ) { const IMAGE_NT_HEADERS *nt; DWORD addr; if ((ULONG_PTR)module & 1) /* mapped as data file */ { module = (HMODULE)((ULONG_PTR)module & ~1); image = FALSE; } if (!(nt = RtlImageNtHeader( module ))) return NULL; if (dir >= nt->OptionalHeader.NumberOfRvaAndSizes) return NULL; if (!(addr = nt->OptionalHeader.DataDirectory[dir].VirtualAddress)) return NULL; *size = nt->OptionalHeader.DataDirectory[dir].Size; if (image || addr < nt->OptionalHeader.SizeOfHeaders) return (char *)module + addr; /* not mapped as image, need to find the section containing the virtual address */ return RtlImageRvaToVa( nt, module, addr, NULL ); } /*********************************************************************** * RtlImageRvaToSection (NTDLL.@) */ PIMAGE_SECTION_HEADER WINAPI RtlImageRvaToSection( const IMAGE_NT_HEADERS *nt, HMODULE module, DWORD rva ) { int i; const IMAGE_SECTION_HEADER *sec; sec = (const IMAGE_SECTION_HEADER*)((const char*)&nt->OptionalHeader + nt->FileHeader.SizeOfOptionalHeader); for (i = 0; i < nt->FileHeader.NumberOfSections; i++, sec++) { if ((sec->VirtualAddress <= rva) && (sec->VirtualAddress + sec->SizeOfRawData > rva)) return (PIMAGE_SECTION_HEADER)sec; } return NULL; } /*********************************************************************** * RtlImageRvaToVa (NTDLL.@) */ PVOID WINAPI RtlImageRvaToVa( const IMAGE_NT_HEADERS *nt, HMODULE module, DWORD rva, IMAGE_SECTION_HEADER **section ) { IMAGE_SECTION_HEADER *sec; if (section && *section) /* try this section first */ { sec = *section; if ((sec->VirtualAddress <= rva) && (sec->VirtualAddress + sec->SizeOfRawData > rva)) goto found; } if (!(sec = RtlImageRvaToSection( nt, module, rva ))) return NULL; found: if (section) *section = sec; return (char *)module + sec->PointerToRawData + (rva - sec->VirtualAddress); } /*********************************************************************** * RtlPcToFileHeader (NTDLL.@) */ PVOID WINAPI RtlPcToFileHeader( PVOID pc, PVOID *address ) { LDR_MODULE *module; PVOID ret = NULL; RtlEnterCriticalSection( &loader_section ); if (!LdrFindEntryForAddress( pc, &module )) ret = module->BaseAddress; RtlLeaveCriticalSection( &loader_section ); *address = ret; return ret; } /*********************************************************************** * NtLoadDriver (NTDLL.@) * ZwLoadDriver (NTDLL.@) */ NTSTATUS WINAPI NtLoadDriver( const UNICODE_STRING *DriverServiceName ) { FIXME("(%p), stub!\n",DriverServiceName); return STATUS_NOT_IMPLEMENTED; } /*********************************************************************** * NtUnloadDriver (NTDLL.@) * ZwUnloadDriver (NTDLL.@) */ NTSTATUS WINAPI NtUnloadDriver( const UNICODE_STRING *DriverServiceName ) { FIXME("(%p), stub!\n",DriverServiceName); return STATUS_NOT_IMPLEMENTED; } /****************************************************************** * DllMain (NTDLL.@) */ BOOL WINAPI DllMain( HINSTANCE inst, DWORD reason, LPVOID reserved ) { if (reason == DLL_PROCESS_ATTACH) LdrDisableThreadCalloutsForDll( inst ); return TRUE; } /****************************************************************** * __wine_init_windows_dir (NTDLL.@) * * Windows and system dir initialization once kernel32 has been loaded. */ void __wine_init_windows_dir( const WCHAR *windir, const WCHAR *sysdir ) { PLIST_ENTRY mark, entry; LPWSTR buffer, p; RtlCreateUnicodeString( &windows_dir, windir ); RtlCreateUnicodeString( &system_dir, sysdir ); strcpyW( user_shared_data->NtSystemRoot, windir ); /* prepend the system dir to the name of the already created modules */ mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList; for (entry = mark->Flink; entry != mark; entry = entry->Flink) { LDR_MODULE *mod = CONTAINING_RECORD( entry, LDR_MODULE, InLoadOrderModuleList ); assert( mod->Flags & LDR_WINE_INTERNAL ); buffer = RtlAllocateHeap( GetProcessHeap(), 0, system_dir.Length + mod->FullDllName.Length + 2*sizeof(WCHAR) ); if (!buffer) continue; strcpyW( buffer, system_dir.Buffer ); p = buffer + strlenW( buffer ); if (p > buffer && p[-1] != '\\') *p++ = '\\'; strcpyW( p, mod->FullDllName.Buffer ); RtlInitUnicodeString( &mod->FullDllName, buffer ); RtlInitUnicodeString( &mod->BaseDllName, p ); } } /*********************************************************************** * __wine_process_init */ void __wine_process_init(void) { static const WCHAR kernel32W[] = {'k','e','r','n','e','l','3','2','.','d','l','l',0}; WINE_MODREF *wm; NTSTATUS status; ANSI_STRING func_name; void (* DECLSPEC_NORETURN init_func)(void); extern mode_t FILE_umask; main_exe_file = thread_init(); /* retrieve current umask */ FILE_umask = umask(0777); umask( FILE_umask ); /* setup the load callback and create ntdll modref */ wine_dll_set_callback( load_builtin_callback ); if ((status = load_builtin_dll( NULL, kernel32W, 0, 0, &wm )) != STATUS_SUCCESS) { MESSAGE( "wine: could not load kernel32.dll, status %x\n", status ); exit(1); } RtlInitAnsiString( &func_name, "__wine_kernel_init" ); if ((status = LdrGetProcedureAddress( wm->ldr.BaseAddress, &func_name, 0, (void **)&init_func )) != STATUS_SUCCESS) { MESSAGE( "wine: could not find __wine_kernel_init in kernel32.dll, status %x\n", status ); exit(1); } init_func(); }