/* * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include "config.h" #include "wine/port.h" #include #include #include "windef.h" #include "winbase.h" #include "winnt.h" #include "winreg.h" #include "winternl.h" #include "module.h" #include "wine/exception.h" #include "excpt.h" #include "wine/unicode.h" #include "wine/debug.h" #include "wine/server.h" #include "ntdll_misc.h" WINE_DEFAULT_DEBUG_CHANNEL(module); WINE_DECLARE_DEBUG_CHANNEL(relay); WINE_DECLARE_DEBUG_CHANNEL(snoop); WINE_DECLARE_DEBUG_CHANNEL(loaddll); 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 */ /* filter for page-fault exceptions */ static WINE_EXCEPTION_FILTER(page_fault) { if (GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION) return EXCEPTION_EXECUTE_HANDLER; return EXCEPTION_CONTINUE_SEARCH; } static const char * const reason_names[] = { "PROCESS_DETACH", "PROCESS_ATTACH", "THREAD_ATTACH", "THREAD_DETACH" }; 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; 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 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 */ static UNICODE_STRING system_dir; /* system directory */ static CRITICAL_SECTION loader_section; static CRITICAL_SECTION_DEBUG critsect_debug = { 0, 0, &loader_section, { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList }, 0, 0, { 0, (DWORD)(__FILE__ ": loader_section") } }; static CRITICAL_SECTION loader_section = { &critsect_debug, -1, 0, 0, 0, 0 }; static WINE_MODREF *cached_modref; static WINE_MODREF *current_modref; static NTSTATUS load_dll( LPCWSTR load_path, LPCWSTR libname, DWORD flags, WINE_MODREF** pwm ); static FARPROC find_named_export( HMODULE module, IMAGE_EXPORT_DIRECTORY *exports, DWORD exp_size, const char *name, int hint ); /* convert PE image VirtualAddress to Real Address */ inline static void *get_rva( HMODULE module, DWORD va ) { return (void *)((char *)module + va); } /* check whether the file name contains a path */ inline static 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 */ inline static void ascii_to_unicode( WCHAR *dst, const char *src, size_t len ) { while (len--) *dst++ = (unsigned char)*src++; } /************************************************************************* * 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 ) { IMAGE_EXPORT_DIRECTORY *exports; DWORD exp_size; WINE_MODREF *wm; WCHAR mod_name[32]; char *end = strchr(forward, '.'); FARPROC proc = NULL; if (!end) return NULL; if ((end - forward) * sizeof(WCHAR) >= sizeof(mod_name) - sizeof(dllW)) return NULL; ascii_to_unicode( mod_name, forward, end - forward ); 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, IMAGE_EXPORT_DIRECTORY *exports, DWORD exp_size, int ordinal ) { FARPROC proc; DWORD *functions = get_rva( module, exports->AddressOfFunctions ); if (ordinal >= exports->NumberOfFunctions) { TRACE(" ordinal %ld 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 (((char *)proc >= (char *)exports) && ((char *)proc < (char *)exports + exp_size)) return find_forwarded_export( module, (char *)proc ); if (TRACE_ON(snoop)) { proc = SNOOP_GetProcAddress( module, exports, exp_size, proc, ordinal ); } if (TRACE_ON(relay) && current_modref) { proc = RELAY_GetProcAddress( module, exports, exp_size, proc, current_modref->ldr.BaseDllName.Buffer ); } 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, IMAGE_EXPORT_DIRECTORY *exports, DWORD exp_size, const char *name, int hint ) { WORD *ordinals = get_rva( module, exports->AddressOfNameOrdinals ); 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, IMAGE_IMPORT_DESCRIPTOR *descr, LPCWSTR load_path ) { NTSTATUS status; WINE_MODREF *wmImp; HMODULE imp_mod; IMAGE_EXPORT_DIRECTORY *exports; DWORD exp_size; IMAGE_THUNK_DATA *import_list, *thunk_list; WCHAR buffer[32]; char *name = get_rva( module, descr->Name ); DWORD len = strlen(name) + 1; 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; if (len * sizeof(WCHAR) <= sizeof(buffer)) { ascii_to_unicode( buffer, name, len ); status = load_dll( load_path, buffer, 0, &wmImp ); } else /* need to allocate a larger buffer */ { WCHAR *ptr = RtlAllocateHeap( GetProcessHeap(), 0, len * sizeof(WCHAR) ); if (!ptr) return NULL; ascii_to_unicode( ptr, name, len ); status = load_dll( load_path, ptr, 0, &wmImp ); RtlFreeHeap( GetProcessHeap(), 0, ptr ); } if (status) { if (status == STATUS_DLL_NOT_FOUND) ERR("Module (file) %s (which is needed by %s) not found\n", name, debugstr_w(current_modref->ldr.FullDllName.Buffer)); else ERR("Loading module (file) %s (which is needed by %s) failed (error %lx).\n", name, debugstr_w(current_modref->ldr.FullDllName.Buffer), status); imp_mod = NULL; exports = NULL; } else { 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)) { ERR("No implementation for %s.%ld", name, IMAGE_ORDINAL(import_list->u1.Ordinal)); } else { IMAGE_IMPORT_BY_NAME *pe_name = get_rva( module, (DWORD)import_list->u1.AddressOfData ); ERR("No implementation for %s.%s", name, pe_name->Name ); } ERR(" imported from %s, setting to 0xdeadbeef\n", debugstr_w(current_modref->ldr.FullDllName.Buffer) ); thunk_list->u1.Function = (PDWORD)0xdeadbeef; import_list++; thunk_list++; } return wmImp; } 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 = (PDWORD)find_ordinal_export( imp_mod, exports, exp_size, ordinal - exports->Base ); if (!thunk_list->u1.Function) { ERR("No implementation for %s.%d imported from %s, setting to 0xdeadbeef\n", name, ordinal, debugstr_w(current_modref->ldr.FullDllName.Buffer) ); thunk_list->u1.Function = (PDWORD)0xdeadbeef; } TRACE("--- Ordinal %s.%d = %p\n", name, ordinal, 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 = (PDWORD)find_named_export( imp_mod, exports, exp_size, pe_name->Name, pe_name->Hint ); if (!thunk_list->u1.Function) { ERR("No implementation for %s.%s imported from %s, setting to 0xdeadbeef\n", name, pe_name->Name, debugstr_w(current_modref->ldr.FullDllName.Buffer) ); thunk_list->u1.Function = (PDWORD)0xdeadbeef; } TRACE("--- %s %s.%d = %p\n", pe_name->Name, name, pe_name->Hint, thunk_list->u1.Function); } import_list++; thunk_list++; } return wmImp; } /**************************************************************** * 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; IMAGE_IMPORT_DESCRIPTOR *imports; WINE_MODREF *prev; DWORD size; NTSTATUS status; if (!(imports = RtlImageDirectoryEntryToData( wm->ldr.BaseAddress, TRUE, IMAGE_DIRECTORY_ENTRY_IMPORT, &size ))) return STATUS_SUCCESS; nb_imports = size / sizeof(*imports); for (i = 0; i < nb_imports; i++) { if (!imports[i].Name) { nb_imports = i; break; } } if (!nb_imports) return STATUS_SUCCESS; /* no imports */ /* Allocate module dependency list */ wm->nDeps = nb_imports; wm->deps = RtlAllocateHeap( ntdll_get_process_heap(), 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; 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; WCHAR *p; 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 = 0; wm->ldr.LoadCount = 0; wm->ldr.TlsIndex = -1; wm->ldr.SectionHandle = NULL; wm->ldr.CheckSum = 0; wm->ldr.TimeDateStamp = 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; 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; 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( ntdll_get_process_heap(), 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; *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( ntdll_get_process_heap(), 0, tls_module_count * sizeof(*pointers) ))) return STATUS_NO_MEMORY; if (!(data = RtlAllocateHeap( ntdll_get_process_heap(), 0, tls_total_size ))) { RtlFreeHeap( ntdll_get_process_heap(), 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 %04lx idx %d: %ld/%ld 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 = dir->AddressOfCallBacks; *callback; callback++) { if (TRACE_ON(relay)) DPRINTF("%04lx:Call TLS callback (proc=%p,module=%p,reason=%s,reserved=0)\n", GetCurrentThreadId(), *callback, module, reason_names[reason] ); (*callback)( module, reason, NULL ); if (TRACE_ON(relay)) DPRINTF("%04lx: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("%04lx: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 = 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("%04lx: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; int i; /* 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; /* 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 status = STATUS_DLL_INIT_FAILED; current_modref = prev; } InsertTailList(&NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList, &wm->ldr.InInitializationOrderModuleList); /* Remove recursion flag */ wm->ldr.Flags &= ~LDR_LOAD_IN_PROGRESS; TRACE("(%s,%p) - END\n", debugstr_w(wm->ldr.BaseDllName.Buffer), lpReserved ); return status; } /************************************************************************* * 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 && (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 %lx 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; } /****************************************************************** * LdrGetDllHandle (NTDLL.@) */ NTSTATUS WINAPI LdrGetDllHandle(ULONG x, ULONG y, const UNICODE_STRING *name, HMODULE *base) { NTSTATUS status = STATUS_DLL_NOT_FOUND; WCHAR dllname[MAX_PATH+4], *p; UNICODE_STRING str; PLIST_ENTRY mark, entry; PLDR_MODULE mod; if (x != 0 || y != 0) FIXME("Unknown behavior, please report\n"); /* Append .DLL to name if no extension present */ if (!(p = strrchrW( name->Buffer, '.')) || strchrW( p, '/' ) || strchrW( p, '\\')) { if (name->Length >= MAX_PATH) return STATUS_NAME_TOO_LONG; strcpyW( dllname, name->Buffer ); strcatW( dllname, dllW ); RtlInitUnicodeString( &str, dllname ); name = &str; } RtlEnterCriticalSection( &loader_section ); if (cached_modref) { if (RtlEqualUnicodeString( name, &cached_modref->ldr.FullDllName, TRUE ) || RtlEqualUnicodeString( name, &cached_modref->ldr.BaseDllName, TRUE )) { *base = cached_modref->ldr.BaseAddress; status = STATUS_SUCCESS; goto done; } } mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList; for (entry = mark->Flink; entry != mark; entry = entry->Flink) { mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList); if (RtlEqualUnicodeString( name, &mod->FullDllName, TRUE ) || RtlEqualUnicodeString( name, &mod->BaseDllName, TRUE )) { cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr); *base = mod->BaseAddress; status = STATUS_SUCCESS; break; } } done: RtlLeaveCriticalSection( &loader_section ); TRACE("%lx %lx %s -> %p\n", x, y, debugstr_us(name), status ? NULL : *base); return status; } /****************************************************************** * 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 ); 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; } } else { /* check if the module itself is invalid to return the proper error */ if (!get_modref( module )) ret = STATUS_DLL_NOT_FOUND; } RtlLeaveCriticalSection( &loader_section ); return ret; } /*********************************************************************** * 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, *p; const WCHAR *load_path; 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; } if (!(nt->FileHeader.Characteristics & IMAGE_FILE_DLL)) { /* if we already have an executable, ignore this one */ if (!NtCurrentTeb()->Peb->ImageBaseAddress) { NtCurrentTeb()->Peb->ImageBaseAddress = module; return; /* don't create the modref here, will be done later on */ } } /* create the MODREF */ if (!(fullname = RtlAllocateHeap( GetProcessHeap(), 0, system_dir.MaximumLength + (strlen(filename) + 1) * sizeof(WCHAR) ))) { ERR( "can't load %s\n", filename ); builtin_load_info->status = STATUS_NO_MEMORY; return; } 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, strlen(filename) + 1 ); 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; NtAllocateVirtualMemory( GetCurrentProcess(), &addr, module, &nt->OptionalHeader.SizeOfImage, MEM_SYSTEM | MEM_IMAGE, PAGE_EXECUTE_WRITECOPY ); /* 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; DWORD len = 0; WINE_MODREF *wm; NTSTATUS status; TRACE( "loading %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, GetCurrentProcess(), &module, 0, 0, &size, &len, ViewShare, 0, PAGE_READONLY ); NtClose( mapping ); if (status != STATUS_SUCCESS) return status; /* 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; } } else wm->ldr.Flags |= LDR_DONT_RESOLVE_REFS; /* 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 (TRACE_ON(snoop)) SNOOP_SetupDLL( module ); *pwm = wm; return STATUS_SUCCESS; } /*********************************************************************** * load_builtin_dll */ static NTSTATUS load_builtin_dll( LPCWSTR load_path, LPCWSTR path, DWORD flags, WINE_MODREF** pwm ) { char error[256], dllname[MAX_PATH]; int file_exists; const WCHAR *name, *p; DWORD len, i; void *handle; 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; /* 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'; } /* 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.status = STATUS_SUCCESS; info.wm = NULL; 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) return info.status; if (!info.wm) { /* The constructor wasn't called, this means the .so is already * loaded under a different name. We can't support multiple names * for the same module, so return an error. */ return STATUS_INVALID_IMAGE_FORMAT; } info.wm->ldr.SectionHandle = handle; if (strcmpiW( info.wm->ldr.BaseDllName.Buffer, name )) { ERR( "loaded .so for %s but got %s instead - probably 16-bit dll\n", debugstr_w(name), debugstr_w(info.wm->ldr.BaseDllName.Buffer) ); /* wine_dll_unload( handle );*/ return STATUS_INVALID_IMAGE_FORMAT; } *pwm = info.wm; return STATUS_SUCCESS; } /*********************************************************************** * 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 ) { WCHAR *file_part, *ext; ULONG len; if (RtlDetermineDosPathNameType_U( libname ) == RELATIVE_PATH) { /* we need to search for it */ /* but first append .dll because RtlDosSearchPath extension handling is broken */ if (!(ext = strrchrW( libname, '.')) || strchrW( ext, '/' ) || strchrW( ext, '\\')) { WCHAR *dllname; if (!(dllname = RtlAllocateHeap( GetProcessHeap(), 0, (strlenW(libname) * sizeof(WCHAR)) + sizeof(dllW) ))) return STATUS_NO_MEMORY; strcpyW( dllname, libname ); strcatW( dllname, dllW ); len = RtlDosSearchPath_U( load_path, dllname, NULL, *size, filename, &file_part ); RtlFreeHeap( GetProcessHeap(), 0, dllname ); } else len = RtlDosSearchPath_U( load_path, libname, NULL, *size, filename, &file_part ); if (len) { if (len >= *size) { *size = len + sizeof(WCHAR); return STATUS_BUFFER_TOO_SMALL; } if ((*pwm = find_fullname_module( filename )) != NULL) return STATUS_SUCCESS; /* check for already loaded module in a different path */ if (!contains_path( libname )) { if ((*pwm = find_basename_module( file_part )) != NULL) return STATUS_SUCCESS; } *handle = pCreateFileW( filename, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0 ); return STATUS_SUCCESS; } /* 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 ); if (!strchrW( filename, '.' )) { len += sizeof(dllW) - sizeof(WCHAR); if (len >= *size) goto overflow; strcatW( filename, dllW ); } *pwm = find_basename_module( filename ); return STATUS_SUCCESS; } } /* absolute path name, or relative path name but not found above */ len = RtlGetFullPathName_U( libname, *size, filename, &file_part ); if (len >= *size) goto overflow; if (file_part && !strchrW( file_part, '.' )) { len += sizeof(dllW) - sizeof(WCHAR); if (len >= *size) goto overflow; strcatW( file_part, dllW ); } if ((*pwm = find_fullname_module( filename )) != NULL) return STATUS_SUCCESS; *handle = pCreateFileW( filename, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0 ); return STATUS_SUCCESS; overflow: *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 ) { int i; enum loadorder_type loadorder[LOADORDER_NTYPES]; WCHAR buffer[32]; WCHAR *filename; ULONG size; const char *filetype = ""; WINE_MODREF *main_exe; HANDLE handle = INVALID_HANDLE_VALUE; 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 (((*pwm)->ldr.Flags & LDR_DONT_RESOLVE_REFS) && !(flags & DONT_RESOLVE_DLL_REFERENCES)) { (*pwm)->ldr.Flags &= ~LDR_DONT_RESOLVE_REFS; fixup_imports( *pwm, load_path ); } TRACE("Found loaded module %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 ); MODULE_GetLoadOrderW( loadorder, main_exe->ldr.BaseDllName.Buffer, filename ); nts = STATUS_DLL_NOT_FOUND; for (i = 0; i < LOADORDER_NTYPES; i++) { if (loadorder[i] == LOADORDER_INVALID) break; switch (loadorder[i]) { case LOADORDER_DLL: TRACE("Trying native dll %s\n", debugstr_w(filename)); if (handle == INVALID_HANDLE_VALUE) continue; /* it cannot possibly be loaded */ nts = load_native_dll( load_path, filename, handle, flags, pwm ); filetype = "native"; break; case LOADORDER_BI: TRACE("Trying built-in %s\n", debugstr_w(filename)); nts = load_builtin_dll( load_path, filename, flags, pwm ); filetype = "builtin"; break; default: nts = STATUS_INTERNAL_ERROR; break; } if (nts == STATUS_SUCCESS) { /* Initialize DLL just loaded */ TRACE("Loaded module %s (%s) at %p\n", debugstr_w(filename), filetype, (*pwm)->ldr.BaseAddress); if (!TRACE_ON(module)) TRACE_(loaddll)("Loaded module %s : %s\n", debugstr_w(filename), filetype); /* Set the ldr.LoadCount here so that an attach failure will */ /* decrement the dependencies through the MODULE_FreeLibrary call. */ (*pwm)->ldr.LoadCount = 1; if (handle != INVALID_HANDLE_VALUE) NtClose( handle ); if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename ); return nts; } if (nts != STATUS_DLL_NOT_FOUND) break; } WARN("Failed to load module %s; status=%lx\n", debugstr_w(libname), nts); if (handle != INVALID_HANDLE_VALUE) 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) { WARN("Attach failed for module %s\n", debugstr_w(libname->Buffer)); LdrUnloadDll(wm->ldr.BaseAddress); wm = NULL; } } *hModule = (wm) ? wm->ldr.BaseAddress : NULL; RtlLeaveCriticalSection( &loader_section ); return nts; } /****************************************************************** * 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; 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 = 0; /* FIXME */ sm->Rank = 0; /* FIXME */ sm->Unknown = 0; /* FIXME */ str.Length = 0; str.MaximumLength = MAXIMUM_FILENAME_LENGTH; str.Buffer = sm->Name; RtlUnicodeStringToAnsiString(&str, &mod->FullDllName, FALSE); ptr = strrchr(sm->Name, '\\'); sm->NameOffset = (ptr != NULL) ? (ptr - (char*)sm->Name + 1) : 0; smi->ModulesCount++; sm++; } else nts = STATUS_INFO_LENGTH_MISMATCH; } RtlLeaveCriticalSection( &loader_section ); if (req_size) *req_size = size; return nts; } /****************************************************************** * 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 ); } /*********************************************************************** * 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) continue; RemoveEntryList(&mod->InLoadOrderModuleList); RemoveEntryList(&mod->InMemoryOrderModuleList); RemoveEntryList(&mod->InInitializationOrderModuleList); TRACE(" unloading %s\n", debugstr_w(mod->FullDllName.Buffer)); if (!TRACE_ON(module)) TRACE_(loaddll)("Unloaded module %s : %s\n", debugstr_w(mod->FullDllName.Buffer), (wm->ldr.Flags & LDR_WINE_INTERNAL) ? "builtin" : "native" ); SERVER_START_REQ( unload_dll ) { req->base = mod->BaseAddress; wine_server_call( req ); } SERVER_END_REQ; if (wm->ldr.Flags & LDR_WINE_INTERNAL) wine_dll_unload( wm->ldr.SectionHandle ); NtUnmapViewOfSection( GetCurrentProcess(), mod->BaseAddress ); if (cached_modref == wm) cached_modref = NULL; RtlFreeUnicodeString( &mod->FullDllName ); RtlFreeHeap( ntdll_get_process_heap(), 0, wm->deps ); RtlFreeHeap( ntdll_get_process_heap(), 0, 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; } /****************************************************************** * init_system_dir * * System dir initialization once kernel32 has been loaded. */ static inline void init_system_dir(void) { PLIST_ENTRY mark, entry; LPWSTR buffer, p; if (!MODULE_GetSystemDirectory( &system_dir )) { ERR( "Couldn't get system dir\n"); exit(1); } /* 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 ); } } /****************************************************************** * LdrInitializeThunk (NTDLL.@) * * FIXME: the arguments are not correct, main_file and CreateFileW_ptr are Wine inventions. */ void WINAPI LdrInitializeThunk( HANDLE main_file, void *CreateFileW_ptr, ULONG unknown3, ULONG unknown4 ) { NTSTATUS status; WINE_MODREF *wm; LPCWSTR load_path; PEB *peb = NtCurrentTeb()->Peb; UNICODE_STRING *main_exe_name = &peb->ProcessParameters->ImagePathName; IMAGE_NT_HEADERS *nt = RtlImageNtHeader( peb->ImageBaseAddress ); pCreateFileW = CreateFileW_ptr; init_system_dir(); /* allocate the modref for the main exe */ if (!(wm = alloc_module( peb->ImageBaseAddress, main_exe_name->Buffer ))) { status = STATUS_NO_MEMORY; goto error; } wm->ldr.LoadCount = -1; /* can't unload main exe */ /* the main exe needs to be the first in the load order list */ RemoveEntryList( &wm->ldr.InLoadOrderModuleList ); InsertHeadList( &peb->LdrData->InLoadOrderModuleList, &wm->ldr.InLoadOrderModuleList ); /* Install signal handlers; this cannot be done before, since we cannot * send exceptions to the debugger before the create process event that * is sent by REQ_INIT_PROCESS_DONE. * We do need the handlers in place by the time the request is over, so * we set them up here. If we segfault between here and the server call * something is very wrong... */ if (!SIGNAL_Init()) exit(1); /* Signal the parent process to continue */ SERVER_START_REQ( init_process_done ) { req->module = peb->ImageBaseAddress; req->module_size = wm->ldr.SizeOfImage; req->entry = (char *)peb->ImageBaseAddress + nt->OptionalHeader.AddressOfEntryPoint; /* API requires a double indirection */ req->name = &main_exe_name->Buffer; req->exe_file = main_file; req->gui = (nt->OptionalHeader.Subsystem != IMAGE_SUBSYSTEM_WINDOWS_CUI); wine_server_add_data( req, main_exe_name->Buffer, main_exe_name->Length ); wine_server_call( req ); } SERVER_END_REQ; if (main_file) NtClose( main_file ); /* we no longer need it */ if (TRACE_ON(relay) || TRACE_ON(snoop)) { RELAY_InitDebugLists(); if (TRACE_ON(relay)) /* setup relay for already loaded dlls */ { LIST_ENTRY *entry, *mark = &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) RELAY_SetupDLL( mod->BaseAddress ); } } } RtlEnterCriticalSection( &loader_section ); 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) goto error; RtlLeaveCriticalSection( &loader_section ); return; error: ERR( "Main exe initialization for %s failed, status %lx\n", debugstr_w(main_exe_name->Buffer), status ); exit(1); } /*********************************************************************** * 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; IMAGE_SECTION_HEADER *sec = (IMAGE_SECTION_HEADER*)((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 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); } /*********************************************************************** * __wine_process_init */ void __wine_process_init( int argc, char *argv[] ) { 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)(); extern void __wine_dbg_ntdll_init(void); thread_init(); __wine_dbg_ntdll_init(); /* hack: register debug channels early */ /* setup the load callback and create ntdll modref */ wine_dll_set_callback( load_builtin_callback ); if ((status = load_builtin_dll( NULL, kernel32W, 0, &wm )) != STATUS_SUCCESS) { MESSAGE( "wine: could not load kernel32.dll, status %lx\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 %lx\n", status ); exit(1); } init_func(); }