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push e1d8a1293d44015bb0894687d02c5c53339996f7
[wine/hacks.git] / dlls / ntdll / loader.c
blob166766b8ee9c6b962f4d04a2be0f927df16016ec
1 /*
2 * Loader functions
3 *
4 * Copyright 1995, 2003 Alexandre Julliard
5 * Copyright 2002 Dmitry Timoshkov for CodeWeavers
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
20 */
21
22 #include "config.h"
23 #include "wine/port.h"
24
25 #include <assert.h>
26 #include <stdarg.h>
27 #ifdef HAVE_SYS_MMAN_H
28 # include <sys/mman.h>
29 #endif
30
31 #define NONAMELESSUNION
32 #define NONAMELESSSTRUCT
33
34 #include "ntstatus.h"
35 #define WIN32_NO_STATUS
36 #include "windef.h"
37 #include "winnt.h"
38 #include "winternl.h"
39
40 #include "wine/exception.h"
41 #include "wine/library.h"
42 #include "wine/unicode.h"
43 #include "wine/debug.h"
44 #include "wine/server.h"
45 #include "ntdll_misc.h"
46 #include "ddk/wdm.h"
47
48 WINE_DEFAULT_DEBUG_CHANNEL(module);
49 WINE_DECLARE_DEBUG_CHANNEL(relay);
50 WINE_DECLARE_DEBUG_CHANNEL(snoop);
51 WINE_DECLARE_DEBUG_CHANNEL(loaddll);
52 WINE_DECLARE_DEBUG_CHANNEL(imports);
53
54 /* we don't want to include winuser.h */
55 #define RT_MANIFEST ((ULONG_PTR)24)
56 #define ISOLATIONAWARE_MANIFEST_RESOURCE_ID ((ULONG_PTR)2)
57
58 typedef DWORD (CALLBACK *DLLENTRYPROC)(HMODULE,DWORD,LPVOID);
59
60 static int process_detaching = 0; /* set on process detach to avoid deadlocks with thread detach */
61 static int free_lib_count; /* recursion depth of LdrUnloadDll calls */
62
63 static const char * const reason_names[] =
64 {
65 "PROCESS_DETACH",
66 "PROCESS_ATTACH",
67 "THREAD_ATTACH",
68 "THREAD_DETACH",
69 NULL, NULL, NULL, NULL,
70 "WINE_PREATTACH"
71 };
72
73 static const WCHAR dllW[] = {'.','d','l','l',0};
74
75 /* internal representation of 32bit modules. per process. */
76 typedef struct _wine_modref
77 {
78 LDR_MODULE ldr;
79 int nDeps;
80 struct _wine_modref **deps;
81 } WINE_MODREF;
82
83 /* info about the current builtin dll load */
84 /* used to keep track of things across the register_dll constructor call */
85 struct builtin_load_info
86 {
87 const WCHAR *load_path;
88 const WCHAR *filename;
89 NTSTATUS status;
90 WINE_MODREF *wm;
91 };
92
93 static struct builtin_load_info default_load_info;
94 static struct builtin_load_info *builtin_load_info = &default_load_info;
95
96 static HANDLE main_exe_file;
97 static UINT tls_module_count; /* number of modules with TLS directory */
98 static UINT tls_total_size; /* total size of TLS storage */
99 static const IMAGE_TLS_DIRECTORY **tls_dirs; /* array of TLS directories */
100
101 UNICODE_STRING windows_dir = { 0, 0, NULL }; /* windows directory */
102 UNICODE_STRING system_dir = { 0, 0, NULL }; /* system directory */
103
104 static RTL_CRITICAL_SECTION loader_section;
105 static RTL_CRITICAL_SECTION_DEBUG critsect_debug =
106 {
107 0, 0, &loader_section,
108 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
109 0, 0, { (DWORD_PTR)(__FILE__ ": loader_section") }
110 };
111 static RTL_CRITICAL_SECTION loader_section = { &critsect_debug, -1, 0, 0, 0, 0 };
112
113 static WINE_MODREF *cached_modref;
114 static WINE_MODREF *current_modref;
115 static WINE_MODREF *last_failed_modref;
116
117 static NTSTATUS load_dll( LPCWSTR load_path, LPCWSTR libname, DWORD flags, WINE_MODREF** pwm );
118 static NTSTATUS process_attach( WINE_MODREF *wm, LPVOID lpReserved );
119 static FARPROC find_named_export( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports,
120 DWORD exp_size, const char *name, int hint, LPCWSTR load_path );
121
122 /* convert PE image VirtualAddress to Real Address */
123 static inline void *get_rva( HMODULE module, DWORD va )
124 {
125 return (void *)((char *)module + va);
126 }
127
128 /* check whether the file name contains a path */
129 static inline int contains_path( LPCWSTR name )
130 {
131 return ((*name && (name[1] == ':')) || strchrW(name, '/') || strchrW(name, '\\'));
132 }
133
134 /* convert from straight ASCII to Unicode without depending on the current codepage */
135 static inline void ascii_to_unicode( WCHAR *dst, const char *src, size_t len )
136 {
137 while (len--) *dst++ = (unsigned char)*src++;
138 }
139
140
141 /*************************************************************************
142 * call_dll_entry_point
143 *
144 * Some brain-damaged dlls (ir32_32.dll for instance) modify ebx in
145 * their entry point, so we need a small asm wrapper.
146 */
147 #ifdef __i386__
148 extern BOOL call_dll_entry_point( DLLENTRYPROC proc, void *module, UINT reason, void *reserved );
149 __ASM_GLOBAL_FUNC(call_dll_entry_point,
150 "pushl %ebp\n\t"
151 "movl %esp,%ebp\n\t"
152 "pushl %ebx\n\t"
153 "subl $8,%esp\n\t"
154 "pushl 20(%ebp)\n\t"
155 "pushl 16(%ebp)\n\t"
156 "pushl 12(%ebp)\n\t"
157 "movl 8(%ebp),%eax\n\t"
158 "call *%eax\n\t"
159 "leal -4(%ebp),%esp\n\t"
160 "popl %ebx\n\t"
161 "popl %ebp\n\t"
162 "ret" )
163 #else /* __i386__ */
164 static inline BOOL call_dll_entry_point( DLLENTRYPROC proc, void *module,
165 UINT reason, void *reserved )
166 {
167 return proc( module, reason, reserved );
168 }
169 #endif /* __i386__ */
170
171
172 #if defined(__i386__) || defined(__x86_64__)
173 /*************************************************************************
174 * stub_entry_point
175 *
176 * Entry point for stub functions.
177 */
178 static void stub_entry_point( const char *dll, const char *name, void *ret_addr )
179 {
180 EXCEPTION_RECORD rec;
181
182 rec.ExceptionCode = EXCEPTION_WINE_STUB;
183 rec.ExceptionFlags = EH_NONCONTINUABLE;
184 rec.ExceptionRecord = NULL;
185 rec.ExceptionAddress = ret_addr;
186 rec.NumberParameters = 2;
187 rec.ExceptionInformation[0] = (ULONG_PTR)dll;
188 rec.ExceptionInformation[1] = (ULONG_PTR)name;
189 for (;;) RtlRaiseException( &rec );
190 }
191
192
193 #include "pshpack1.h"
194 #ifdef __i386__
195 struct stub
196 {
197 BYTE pushl1; /* pushl $name */
198 const char *name;
199 BYTE pushl2; /* pushl $dll */
200 const char *dll;
201 BYTE call; /* call stub_entry_point */
202 DWORD entry;
203 };
204 #else
205 struct stub
206 {
207 BYTE movq_rdi[2]; /* movq $dll,%rdi */
208 const char *dll;
209 BYTE movq_rsi[2]; /* movq $name,%rsi */
210 const char *name;
211 BYTE movq_rsp_rdx[4]; /* movq (%rsp),%rdx */
212 BYTE movq_rax[2]; /* movq $entry, %rax */
213 const void* entry;
214 BYTE jmpq_rax[2]; /* jmp %rax */
215 };
216 #endif
217 #include "poppack.h"
218
219 /*************************************************************************
220 * allocate_stub
221 *
222 * Allocate a stub entry point.
223 */
224 static ULONG_PTR allocate_stub( const char *dll, const char *name )
225 {
226 #define MAX_SIZE 65536
227 static struct stub *stubs;
228 static unsigned int nb_stubs;
229 struct stub *stub;
230
231 if (nb_stubs >= MAX_SIZE / sizeof(*stub)) return 0xdeadbeef;
232
233 if (!stubs)
234 {
235 SIZE_T size = MAX_SIZE;
236 if (NtAllocateVirtualMemory( NtCurrentProcess(), (void **)&stubs, 0, &size,
237 MEM_COMMIT, PAGE_EXECUTE_WRITECOPY ) != STATUS_SUCCESS)
238 return 0xdeadbeef;
239 }
240 stub = &stubs[nb_stubs++];
241 #ifdef __i386__
242 stub->pushl1 = 0x68; /* pushl $name */
243 stub->name = name;
244 stub->pushl2 = 0x68; /* pushl $dll */
245 stub->dll = dll;
246 stub->call = 0xe8; /* call stub_entry_point */
247 stub->entry = (BYTE *)stub_entry_point - (BYTE *)(&stub->entry + 1);
248 #else
249 stub->movq_rdi[0] = 0x48; /* movq $dll,%rdi */
250 stub->movq_rdi[1] = 0xbf;
251 stub->dll = dll;
252 stub->movq_rsi[0] = 0x48; /* movq $name,%rsi */
253 stub->movq_rsi[1] = 0xbe;
254 stub->name = name;
255 stub->movq_rsp_rdx[0] = 0x48; /* movq (%rsp),%rdx */
256 stub->movq_rsp_rdx[1] = 0x8b;
257 stub->movq_rsp_rdx[2] = 0x14;
258 stub->movq_rsp_rdx[3] = 0x24;
259 stub->movq_rax[0] = 0x48; /* movq $entry, %rax */
260 stub->movq_rax[1] = 0xb8;
261 stub->entry = stub_entry_point;
262 stub->jmpq_rax[0] = 0xff; /* jmp %rax */
263 stub->jmpq_rax[1] = 0xe0;
264 #endif
265 return (ULONG_PTR)stub;
266 }
267
268 #else /* __i386__ */
269 static inline ULONG_PTR allocate_stub( const char *dll, const char *name ) { return 0xdeadbeef; }
270 #endif /* __i386__ */
271
272
273 /*************************************************************************
274 * get_modref
275 *
276 * Looks for the referenced HMODULE in the current process
277 * The loader_section must be locked while calling this function.
278 */
279 static WINE_MODREF *get_modref( HMODULE hmod )
280 {
281 PLIST_ENTRY mark, entry;
282 PLDR_MODULE mod;
283
284 if (cached_modref && cached_modref->ldr.BaseAddress == hmod) return cached_modref;
285
286 mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
287 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
288 {
289 mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
290 if (mod->BaseAddress == hmod)
291 return cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
292 if (mod->BaseAddress > (void*)hmod) break;
293 }
294 return NULL;
295 }
296
297
298 /**********************************************************************
299 * find_basename_module
300 *
301 * Find a module from its base name.
302 * The loader_section must be locked while calling this function
303 */
304 static WINE_MODREF *find_basename_module( LPCWSTR name )
305 {
306 PLIST_ENTRY mark, entry;
307
308 if (cached_modref && !strcmpiW( name, cached_modref->ldr.BaseDllName.Buffer ))
309 return cached_modref;
310
311 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
312 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
313 {
314 LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
315 if (!strcmpiW( name, mod->BaseDllName.Buffer ))
316 {
317 cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
318 return cached_modref;
319 }
320 }
321 return NULL;
322 }
323
324
325 /**********************************************************************
326 * find_fullname_module
327 *
328 * Find a module from its full path name.
329 * The loader_section must be locked while calling this function
330 */
331 static WINE_MODREF *find_fullname_module( LPCWSTR name )
332 {
333 PLIST_ENTRY mark, entry;
334
335 if (cached_modref && !strcmpiW( name, cached_modref->ldr.FullDllName.Buffer ))
336 return cached_modref;
337
338 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
339 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
340 {
341 LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
342 if (!strcmpiW( name, mod->FullDllName.Buffer ))
343 {
344 cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
345 return cached_modref;
346 }
347 }
348 return NULL;
349 }
350
351
352 /*************************************************************************
353 * find_forwarded_export
354 *
355 * Find the final function pointer for a forwarded function.
356 * The loader_section must be locked while calling this function.
357 */
358 static FARPROC find_forwarded_export( HMODULE module, const char *forward, LPCWSTR load_path )
359 {
360 const IMAGE_EXPORT_DIRECTORY *exports;
361 DWORD exp_size;
362 WINE_MODREF *wm;
363 WCHAR mod_name[32];
364 const char *end = strrchr(forward, '.');
365 FARPROC proc = NULL;
366
367 if (!end) return NULL;
368 if ((end - forward) * sizeof(WCHAR) >= sizeof(mod_name)) return NULL;
369 ascii_to_unicode( mod_name, forward, end - forward );
370 mod_name[end - forward] = 0;
371 if (!strchrW( mod_name, '.' ))
372 {
373 if ((end - forward) * sizeof(WCHAR) >= sizeof(mod_name) - sizeof(dllW)) return NULL;
374 memcpy( mod_name + (end - forward), dllW, sizeof(dllW) );
375 }
376
377 if (!(wm = find_basename_module( mod_name )))
378 {
379 TRACE( "delay loading %s for '%s'\n", debugstr_w(mod_name), forward );
380 if (load_dll( load_path, mod_name, 0, &wm ) == STATUS_SUCCESS &&
381 !(wm->ldr.Flags & LDR_DONT_RESOLVE_REFS))
382 {
383 if (process_attach( wm, NULL ) != STATUS_SUCCESS)
384 {
385 LdrUnloadDll( wm->ldr.BaseAddress );
386 wm = NULL;
387 }
388 }
389
390 if (!wm)
391 {
392 ERR( "module not found for forward '%s' used by %s\n",
393 forward, debugstr_w(get_modref(module)->ldr.FullDllName.Buffer) );
394 return NULL;
395 }
396 }
397 if ((exports = RtlImageDirectoryEntryToData( wm->ldr.BaseAddress, TRUE,
398 IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size )))
399 proc = find_named_export( wm->ldr.BaseAddress, exports, exp_size, end + 1, -1, load_path );
400
401 if (!proc)
402 {
403 ERR("function not found for forward '%s' used by %s."
404 " If you are using builtin %s, try using the native one instead.\n",
405 forward, debugstr_w(get_modref(module)->ldr.FullDllName.Buffer),
406 debugstr_w(get_modref(module)->ldr.BaseDllName.Buffer) );
407 }
408 return proc;
409 }
410
411
412 /*************************************************************************
413 * find_ordinal_export
414 *
415 * Find an exported function by ordinal.
416 * The exports base must have been subtracted from the ordinal already.
417 * The loader_section must be locked while calling this function.
418 */
419 static FARPROC find_ordinal_export( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports,
420 DWORD exp_size, DWORD ordinal, LPCWSTR load_path )
421 {
422 FARPROC proc;
423 const DWORD *functions = get_rva( module, exports->AddressOfFunctions );
424
425 if (ordinal >= exports->NumberOfFunctions)
426 {
427 TRACE(" ordinal %d out of range!\n", ordinal + exports->Base );
428 return NULL;
429 }
430 if (!functions[ordinal]) return NULL;
431
432 proc = get_rva( module, functions[ordinal] );
433
434 /* if the address falls into the export dir, it's a forward */
435 if (((const char *)proc >= (const char *)exports) &&
436 ((const char *)proc < (const char *)exports + exp_size))
437 return find_forwarded_export( module, (const char *)proc, load_path );
438
439 if (TRACE_ON(snoop))
440 {
441 const WCHAR *user = current_modref ? current_modref->ldr.BaseDllName.Buffer : NULL;
442 proc = SNOOP_GetProcAddress( module, exports, exp_size, proc, ordinal, user );
443 }
444 if (TRACE_ON(relay))
445 {
446 const WCHAR *user = current_modref ? current_modref->ldr.BaseDllName.Buffer : NULL;
447 proc = RELAY_GetProcAddress( module, exports, exp_size, proc, ordinal, user );
448 }
449 return proc;
450 }
451
452
453 /*************************************************************************
454 * find_named_export
455 *
456 * Find an exported function by name.
457 * The loader_section must be locked while calling this function.
458 */
459 static FARPROC find_named_export( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports,
460 DWORD exp_size, const char *name, int hint, LPCWSTR load_path )
461 {
462 const WORD *ordinals = get_rva( module, exports->AddressOfNameOrdinals );
463 const DWORD *names = get_rva( module, exports->AddressOfNames );
464 int min = 0, max = exports->NumberOfNames - 1;
465
466 /* first check the hint */
467 if (hint >= 0 && hint <= max)
468 {
469 char *ename = get_rva( module, names[hint] );
470 if (!strcmp( ename, name ))
471 return find_ordinal_export( module, exports, exp_size, ordinals[hint], load_path );
472 }
473
474 /* then do a binary search */
475 while (min <= max)
476 {
477 int res, pos = (min + max) / 2;
478 char *ename = get_rva( module, names[pos] );
479 if (!(res = strcmp( ename, name )))
480 return find_ordinal_export( module, exports, exp_size, ordinals[pos], load_path );
481 if (res > 0) max = pos - 1;
482 else min = pos + 1;
483 }
484 return NULL;
485
486 }
487
488
489 /*************************************************************************
490 * import_dll
491 *
492 * Import the dll specified by the given import descriptor.
493 * The loader_section must be locked while calling this function.
494 */
495 static WINE_MODREF *import_dll( HMODULE module, const IMAGE_IMPORT_DESCRIPTOR *descr, LPCWSTR load_path )
496 {
497 NTSTATUS status;
498 WINE_MODREF *wmImp;
499 HMODULE imp_mod;
500 const IMAGE_EXPORT_DIRECTORY *exports;
501 DWORD exp_size;
502 const IMAGE_THUNK_DATA *import_list;
503 IMAGE_THUNK_DATA *thunk_list;
504 WCHAR buffer[32];
505 const char *name = get_rva( module, descr->Name );
506 DWORD len = strlen(name);
507 PVOID protect_base;
508 SIZE_T protect_size = 0;
509 DWORD protect_old;
510
511 thunk_list = get_rva( module, (DWORD)descr->FirstThunk );
512 if (descr->u.OriginalFirstThunk)
513 import_list = get_rva( module, (DWORD)descr->u.OriginalFirstThunk );
514 else
515 import_list = thunk_list;
516
517 while (len && name[len-1] == ' ') len--; /* remove trailing spaces */
518
519 if (len * sizeof(WCHAR) < sizeof(buffer))
520 {
521 ascii_to_unicode( buffer, name, len );
522 buffer[len] = 0;
523 status = load_dll( load_path, buffer, 0, &wmImp );
524 }
525 else /* need to allocate a larger buffer */
526 {
527 WCHAR *ptr = RtlAllocateHeap( GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR) );
528 if (!ptr) return NULL;
529 ascii_to_unicode( ptr, name, len );
530 ptr[len] = 0;
531 status = load_dll( load_path, ptr, 0, &wmImp );
532 RtlFreeHeap( GetProcessHeap(), 0, ptr );
533 }
534
535 if (status)
536 {
537 if (status == STATUS_DLL_NOT_FOUND)
538 ERR("Library %s (which is needed by %s) not found\n",
539 name, debugstr_w(current_modref->ldr.FullDllName.Buffer));
540 else
541 ERR("Loading library %s (which is needed by %s) failed (error %x).\n",
542 name, debugstr_w(current_modref->ldr.FullDllName.Buffer), status);
543 return NULL;
544 }
545
546 /* unprotect the import address table since it can be located in
547 * readonly section */
548 while (import_list[protect_size].u1.Ordinal) protect_size++;
549 protect_base = thunk_list;
550 protect_size *= sizeof(*thunk_list);
551 NtProtectVirtualMemory( NtCurrentProcess(), &protect_base,
552 &protect_size, PAGE_WRITECOPY, &protect_old );
553
554 imp_mod = wmImp->ldr.BaseAddress;
555 exports = RtlImageDirectoryEntryToData( imp_mod, TRUE, IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size );
556
557 if (!exports)
558 {
559 /* set all imported function to deadbeef */
560 while (import_list->u1.Ordinal)
561 {
562 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal))
563 {
564 int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
565 WARN("No implementation for %s.%d", name, ordinal );
566 thunk_list->u1.Function = allocate_stub( name, IntToPtr(ordinal) );
567 }
568 else
569 {
570 IMAGE_IMPORT_BY_NAME *pe_name = get_rva( module, (DWORD)import_list->u1.AddressOfData );
571 WARN("No implementation for %s.%s", name, pe_name->Name );
572 thunk_list->u1.Function = allocate_stub( name, (const char*)pe_name->Name );
573 }
574 WARN(" imported from %s, allocating stub %p\n",
575 debugstr_w(current_modref->ldr.FullDllName.Buffer),
576 (void *)thunk_list->u1.Function );
577 import_list++;
578 thunk_list++;
579 }
580 goto done;
581 }
582
583 while (import_list->u1.Ordinal)
584 {
585 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal))
586 {
587 int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
588
589 thunk_list->u1.Function = (ULONG_PTR)find_ordinal_export( imp_mod, exports, exp_size,
590 ordinal - exports->Base, load_path );
591 if (!thunk_list->u1.Function)
592 {
593 thunk_list->u1.Function = allocate_stub( name, IntToPtr(ordinal) );
594 WARN("No implementation for %s.%d imported from %s, setting to %p\n",
595 name, ordinal, debugstr_w(current_modref->ldr.FullDllName.Buffer),
596 (void *)thunk_list->u1.Function );
597 }
598 TRACE_(imports)("--- Ordinal %s.%d = %p\n", name, ordinal, (void *)thunk_list->u1.Function );
599 }
600 else /* import by name */
601 {
602 IMAGE_IMPORT_BY_NAME *pe_name;
603 pe_name = get_rva( module, (DWORD)import_list->u1.AddressOfData );
604 thunk_list->u1.Function = (ULONG_PTR)find_named_export( imp_mod, exports, exp_size,
605 (const char*)pe_name->Name,
606 pe_name->Hint, load_path );
607 if (!thunk_list->u1.Function)
608 {
609 thunk_list->u1.Function = allocate_stub( name, (const char*)pe_name->Name );
610 WARN("No implementation for %s.%s imported from %s, setting to %p\n",
611 name, pe_name->Name, debugstr_w(current_modref->ldr.FullDllName.Buffer),
612 (void *)thunk_list->u1.Function );
613 }
614 TRACE_(imports)("--- %s %s.%d = %p\n",
615 pe_name->Name, name, pe_name->Hint, (void *)thunk_list->u1.Function);
616 }
617 import_list++;
618 thunk_list++;
619 }
620
621 done:
622 /* restore old protection of the import address table */
623 NtProtectVirtualMemory( NtCurrentProcess(), &protect_base, &protect_size, protect_old, NULL );
624 return wmImp;
625 }
626
627
628 /***********************************************************************
629 * create_module_activation_context
630 */
631 static NTSTATUS create_module_activation_context( LDR_MODULE *module )
632 {
633 NTSTATUS status;
634 LDR_RESOURCE_INFO info;
635 const IMAGE_RESOURCE_DATA_ENTRY *entry;
636
637 info.Type = RT_MANIFEST;
638 info.Name = ISOLATIONAWARE_MANIFEST_RESOURCE_ID;
639 info.Language = 0;
640 if (!(status = LdrFindResource_U( module->BaseAddress, &info, 3, &entry )))
641 {
642 ACTCTXW ctx;
643 ctx.cbSize = sizeof(ctx);
644 ctx.lpSource = NULL;
645 ctx.dwFlags = ACTCTX_FLAG_RESOURCE_NAME_VALID | ACTCTX_FLAG_HMODULE_VALID;
646 ctx.hModule = module->BaseAddress;
647 ctx.lpResourceName = (LPCWSTR)ISOLATIONAWARE_MANIFEST_RESOURCE_ID;
648 status = RtlCreateActivationContext( &module->ActivationContext, &ctx );
649 }
650 return status;
651 }
652
653
654 /****************************************************************
655 * fixup_imports
656 *
657 * Fixup all imports of a given module.
658 * The loader_section must be locked while calling this function.
659 */
660 static NTSTATUS fixup_imports( WINE_MODREF *wm, LPCWSTR load_path )
661 {
662 int i, nb_imports;
663 const IMAGE_IMPORT_DESCRIPTOR *imports;
664 WINE_MODREF *prev;
665 DWORD size;
666 NTSTATUS status;
667 ULONG_PTR cookie;
668
669 if (!(wm->ldr.Flags & LDR_DONT_RESOLVE_REFS)) return STATUS_SUCCESS; /* already done */
670 wm->ldr.Flags &= ~LDR_DONT_RESOLVE_REFS;
671
672 if (!(imports = RtlImageDirectoryEntryToData( wm->ldr.BaseAddress, TRUE,
673 IMAGE_DIRECTORY_ENTRY_IMPORT, &size )))
674 return STATUS_SUCCESS;
675
676 nb_imports = 0;
677 while (imports[nb_imports].Name && imports[nb_imports].FirstThunk) nb_imports++;
678
679 if (!nb_imports) return STATUS_SUCCESS; /* no imports */
680
681 if (!create_module_activation_context( &wm->ldr ))
682 RtlActivateActivationContext( 0, wm->ldr.ActivationContext, &cookie );
683
684 /* Allocate module dependency list */
685 wm->nDeps = nb_imports;
686 wm->deps = RtlAllocateHeap( GetProcessHeap(), 0, nb_imports*sizeof(WINE_MODREF *) );
687
688 /* load the imported modules. They are automatically
689 * added to the modref list of the process.
690 */
691 prev = current_modref;
692 current_modref = wm;
693 status = STATUS_SUCCESS;
694 for (i = 0; i < nb_imports; i++)
695 {
696 if (!(wm->deps[i] = import_dll( wm->ldr.BaseAddress, &imports[i], load_path )))
697 status = STATUS_DLL_NOT_FOUND;
698 }
699 current_modref = prev;
700 if (wm->ldr.ActivationContext) RtlDeactivateActivationContext( 0, cookie );
701 return status;
702 }
703
704
705 /*************************************************************************
706 * is_dll_native_subsystem
707 *
708 * Check if dll is a proper native driver.
709 * Some dlls (corpol.dll from IE6 for instance) are incorrectly marked as native
710 * while being perfectly normal DLLs. This heuristic should catch such breakages.
711 */
712 static BOOL is_dll_native_subsystem( HMODULE module, const IMAGE_NT_HEADERS *nt, LPCWSTR filename )
713 {
714 static const WCHAR ntdllW[] = {'n','t','d','l','l','.','d','l','l',0};
715 static const WCHAR kernel32W[] = {'k','e','r','n','e','l','3','2','.','d','l','l',0};
716 const IMAGE_IMPORT_DESCRIPTOR *imports;
717 DWORD i, size;
718 WCHAR buffer[16];
719
720 if (nt->OptionalHeader.Subsystem != IMAGE_SUBSYSTEM_NATIVE) return FALSE;
721 if (nt->OptionalHeader.SectionAlignment < getpagesize()) return TRUE;
722
723 if ((imports = RtlImageDirectoryEntryToData( module, TRUE,
724 IMAGE_DIRECTORY_ENTRY_IMPORT, &size )))
725 {
726 for (i = 0; imports[i].Name; i++)
727 {
728 const char *name = get_rva( module, imports[i].Name );
729 DWORD len = strlen(name);
730 if (len * sizeof(WCHAR) >= sizeof(buffer)) continue;
731 ascii_to_unicode( buffer, name, len + 1 );
732 if (!strcmpiW( buffer, ntdllW ) || !strcmpiW( buffer, kernel32W ))
733 {
734 TRACE( "%s imports %s, assuming not native\n", debugstr_w(filename), debugstr_w(buffer) );
735 return FALSE;
736 }
737 }
738 }
739 return TRUE;
740 }
741
742
743 /*************************************************************************
744 * alloc_module
745 *
746 * Allocate a WINE_MODREF structure and add it to the process list
747 * The loader_section must be locked while calling this function.
748 */
749 static WINE_MODREF *alloc_module( HMODULE hModule, LPCWSTR filename )
750 {
751 WINE_MODREF *wm;
752 const WCHAR *p;
753 const IMAGE_NT_HEADERS *nt = RtlImageNtHeader(hModule);
754 PLIST_ENTRY entry, mark;
755
756 if (!(wm = RtlAllocateHeap( GetProcessHeap(), 0, sizeof(*wm) ))) return NULL;
757
758 wm->nDeps = 0;
759 wm->deps = NULL;
760
761 wm->ldr.BaseAddress = hModule;
762 wm->ldr.EntryPoint = NULL;
763 wm->ldr.SizeOfImage = nt->OptionalHeader.SizeOfImage;
764 wm->ldr.Flags = LDR_DONT_RESOLVE_REFS;
765 wm->ldr.LoadCount = 1;
766 wm->ldr.TlsIndex = -1;
767 wm->ldr.SectionHandle = NULL;
768 wm->ldr.CheckSum = 0;
769 wm->ldr.TimeDateStamp = 0;
770 wm->ldr.ActivationContext = 0;
771
772 RtlCreateUnicodeString( &wm->ldr.FullDllName, filename );
773 if ((p = strrchrW( wm->ldr.FullDllName.Buffer, '\\' ))) p++;
774 else p = wm->ldr.FullDllName.Buffer;
775 RtlInitUnicodeString( &wm->ldr.BaseDllName, p );
776
777 if ((nt->FileHeader.Characteristics & IMAGE_FILE_DLL) && !is_dll_native_subsystem( hModule, nt, p ))
778 {
779 wm->ldr.Flags |= LDR_IMAGE_IS_DLL;
780 if (nt->OptionalHeader.AddressOfEntryPoint)
781 wm->ldr.EntryPoint = (char *)hModule + nt->OptionalHeader.AddressOfEntryPoint;
782 }
783
784 InsertTailList(&NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList,
785 &wm->ldr.InLoadOrderModuleList);
786
787 /* insert module in MemoryList, sorted in increasing base addresses */
788 mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
789 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
790 {
791 if (CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList)->BaseAddress > wm->ldr.BaseAddress)
792 break;
793 }
794 entry->Blink->Flink = &wm->ldr.InMemoryOrderModuleList;
795 wm->ldr.InMemoryOrderModuleList.Blink = entry->Blink;
796 wm->ldr.InMemoryOrderModuleList.Flink = entry;
797 entry->Blink = &wm->ldr.InMemoryOrderModuleList;
798
799 /* wait until init is called for inserting into this list */
800 wm->ldr.InInitializationOrderModuleList.Flink = NULL;
801 wm->ldr.InInitializationOrderModuleList.Blink = NULL;
802
803 if (!(nt->OptionalHeader.DllCharacteristics & IMAGE_DLLCHARACTERISTICS_NX_COMPAT))
804 {
805 WARN( "disabling no-exec because of %s\n", debugstr_w(wm->ldr.BaseDllName.Buffer) );
806 VIRTUAL_SetForceExec( TRUE );
807 }
808 return wm;
809 }
810
811
812 /*************************************************************************
813 * alloc_process_tls
814 *
815 * Allocate the process-wide structure for module TLS storage.
816 */
817 static NTSTATUS alloc_process_tls(void)
818 {
819 PLIST_ENTRY mark, entry;
820 PLDR_MODULE mod;
821 const IMAGE_TLS_DIRECTORY *dir;
822 ULONG size, i;
823
824 mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
825 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
826 {
827 mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
828 if (!(dir = RtlImageDirectoryEntryToData( mod->BaseAddress, TRUE,
829 IMAGE_DIRECTORY_ENTRY_TLS, &size )))
830 continue;
831 size = (dir->EndAddressOfRawData - dir->StartAddressOfRawData) + dir->SizeOfZeroFill;
832 if (!size) continue;
833 tls_total_size += size;
834 tls_module_count++;
835 }
836 if (!tls_module_count) return STATUS_SUCCESS;
837
838 TRACE( "count %u size %u\n", tls_module_count, tls_total_size );
839
840 tls_dirs = RtlAllocateHeap( GetProcessHeap(), 0, tls_module_count * sizeof(*tls_dirs) );
841 if (!tls_dirs) return STATUS_NO_MEMORY;
842
843 for (i = 0, entry = mark->Flink; entry != mark; entry = entry->Flink)
844 {
845 mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
846 if (!(dir = RtlImageDirectoryEntryToData( mod->BaseAddress, TRUE,
847 IMAGE_DIRECTORY_ENTRY_TLS, &size )))
848 continue;
849 tls_dirs[i] = dir;
850 *(DWORD *)dir->AddressOfIndex = i;
851 mod->TlsIndex = i;
852 mod->LoadCount = -1; /* can't unload it */
853 i++;
854 }
855 return STATUS_SUCCESS;
856 }
857
858
859 /*************************************************************************
860 * alloc_thread_tls
861 *
862 * Allocate the per-thread structure for module TLS storage.
863 */
864 static NTSTATUS alloc_thread_tls(void)
865 {
866 void **pointers;
867 char *data;
868 UINT i;
869
870 if (!tls_module_count) return STATUS_SUCCESS;
871
872 if (!(pointers = RtlAllocateHeap( GetProcessHeap(), 0,
873 tls_module_count * sizeof(*pointers) )))
874 return STATUS_NO_MEMORY;
875
876 if (!(data = RtlAllocateHeap( GetProcessHeap(), 0, tls_total_size )))
877 {
878 RtlFreeHeap( GetProcessHeap(), 0, pointers );
879 return STATUS_NO_MEMORY;
880 }
881
882 for (i = 0; i < tls_module_count; i++)
883 {
884 const IMAGE_TLS_DIRECTORY *dir = tls_dirs[i];
885 ULONG size = dir->EndAddressOfRawData - dir->StartAddressOfRawData;
886
887 TRACE( "thread %04x idx %d: %d/%d bytes from %p to %p\n",
888 GetCurrentThreadId(), i, size, dir->SizeOfZeroFill,
889 (void *)dir->StartAddressOfRawData, data );
890
891 pointers[i] = data;
892 memcpy( data, (void *)dir->StartAddressOfRawData, size );
893 data += size;
894 memset( data, 0, dir->SizeOfZeroFill );
895 data += dir->SizeOfZeroFill;
896 }
897 NtCurrentTeb()->ThreadLocalStoragePointer = pointers;
898 return STATUS_SUCCESS;
899 }
900
901
902 /*************************************************************************
903 * call_tls_callbacks
904 */
905 static void call_tls_callbacks( HMODULE module, UINT reason )
906 {
907 const IMAGE_TLS_DIRECTORY *dir;
908 const PIMAGE_TLS_CALLBACK *callback;
909 ULONG dirsize;
910
911 dir = RtlImageDirectoryEntryToData( module, TRUE, IMAGE_DIRECTORY_ENTRY_TLS, &dirsize );
912 if (!dir || !dir->AddressOfCallBacks) return;
913
914 for (callback = (const PIMAGE_TLS_CALLBACK *)dir->AddressOfCallBacks; *callback; callback++)
915 {
916 if (TRACE_ON(relay))
917 DPRINTF("%04x:Call TLS callback (proc=%p,module=%p,reason=%s,reserved=0)\n",
918 GetCurrentThreadId(), *callback, module, reason_names[reason] );
919 __TRY
920 {
921 (*callback)( module, reason, NULL );
922 }
923 __EXCEPT_ALL
924 {
925 if (TRACE_ON(relay))
926 DPRINTF("%04x:exception in TLS callback (proc=%p,module=%p,reason=%s,reserved=0)\n",
927 GetCurrentThreadId(), callback, module, reason_names[reason] );
928 return;
929 }
930 __ENDTRY
931 if (TRACE_ON(relay))
932 DPRINTF("%04x:Ret TLS callback (proc=%p,module=%p,reason=%s,reserved=0)\n",
933 GetCurrentThreadId(), *callback, module, reason_names[reason] );
934 }
935 }
936
937
938 /*************************************************************************
939 * MODULE_InitDLL
940 */
941 static NTSTATUS MODULE_InitDLL( WINE_MODREF *wm, UINT reason, LPVOID lpReserved )
942 {
943 WCHAR mod_name[32];
944 NTSTATUS status = STATUS_SUCCESS;
945 DLLENTRYPROC entry = wm->ldr.EntryPoint;
946 void *module = wm->ldr.BaseAddress;
947 BOOL retv = TRUE;
948
949 /* Skip calls for modules loaded with special load flags */
950
951 if (wm->ldr.Flags & LDR_DONT_RESOLVE_REFS) return STATUS_SUCCESS;
952 if (wm->ldr.TlsIndex != -1) call_tls_callbacks( wm->ldr.BaseAddress, reason );
953 if (!entry) return STATUS_SUCCESS;
954
955 if (TRACE_ON(relay))
956 {
957 size_t len = min( wm->ldr.BaseDllName.Length, sizeof(mod_name)-sizeof(WCHAR) );
958 memcpy( mod_name, wm->ldr.BaseDllName.Buffer, len );
959 mod_name[len / sizeof(WCHAR)] = 0;
960 DPRINTF("%04x:Call PE DLL (proc=%p,module=%p %s,reason=%s,res=%p)\n",
961 GetCurrentThreadId(), entry, module, debugstr_w(mod_name),
962 reason_names[reason], lpReserved );
963 }
964 else TRACE("(%p %s,%s,%p) - CALL\n", module, debugstr_w(wm->ldr.BaseDllName.Buffer),
965 reason_names[reason], lpReserved );
966
967 __TRY
968 {
969 retv = call_dll_entry_point( entry, module, reason, lpReserved );
970 if (!retv)
971 status = STATUS_DLL_INIT_FAILED;
972 }
973 __EXCEPT_ALL
974 {
975 if (TRACE_ON(relay))
976 DPRINTF("%04x:exception in PE entry point (proc=%p,module=%p,reason=%s,res=%p)\n",
977 GetCurrentThreadId(), entry, module, reason_names[reason], lpReserved );
978 status = GetExceptionCode();
979 }
980 __ENDTRY
981
982 /* The state of the module list may have changed due to the call
983 to the dll. We cannot assume that this module has not been
984 deleted. */
985 if (TRACE_ON(relay))
986 DPRINTF("%04x:Ret PE DLL (proc=%p,module=%p %s,reason=%s,res=%p) retval=%x\n",
987 GetCurrentThreadId(), entry, module, debugstr_w(mod_name),
988 reason_names[reason], lpReserved, retv );
989 else TRACE("(%p,%s,%p) - RETURN %d\n", module, reason_names[reason], lpReserved, retv );
990
991 return status;
992 }
993
994
995 /*************************************************************************
996 * process_attach
997 *
998 * Send the process attach notification to all DLLs the given module
999 * depends on (recursively). This is somewhat complicated due to the fact that
1000 *
1001 * - we have to respect the module dependencies, i.e. modules implicitly
1002 * referenced by another module have to be initialized before the module
1003 * itself can be initialized
1004 *
1005 * - the initialization routine of a DLL can itself call LoadLibrary,
1006 * thereby introducing a whole new set of dependencies (even involving
1007 * the 'old' modules) at any time during the whole process
1008 *
1009 * (Note that this routine can be recursively entered not only directly
1010 * from itself, but also via LoadLibrary from one of the called initialization
1011 * routines.)
1012 *
1013 * Furthermore, we need to rearrange the main WINE_MODREF list to allow
1014 * the process *detach* notifications to be sent in the correct order.
1015 * This must not only take into account module dependencies, but also
1016 * 'hidden' dependencies created by modules calling LoadLibrary in their
1017 * attach notification routine.
1018 *
1019 * The strategy is rather simple: we move a WINE_MODREF to the head of the
1020 * list after the attach notification has returned. This implies that the
1021 * detach notifications are called in the reverse of the sequence the attach
1022 * notifications *returned*.
1023 *
1024 * The loader_section must be locked while calling this function.
1025 */
1026 static NTSTATUS process_attach( WINE_MODREF *wm, LPVOID lpReserved )
1027 {
1028 NTSTATUS status = STATUS_SUCCESS;
1029 ULONG_PTR cookie;
1030 int i;
1031
1032 if (process_detaching) return status;
1033
1034 /* prevent infinite recursion in case of cyclical dependencies */
1035 if ( ( wm->ldr.Flags & LDR_LOAD_IN_PROGRESS )
1036 || ( wm->ldr.Flags & LDR_PROCESS_ATTACHED ) )
1037 return status;
1038
1039 TRACE("(%s,%p) - START\n", debugstr_w(wm->ldr.BaseDllName.Buffer), lpReserved );
1040
1041 /* Tag current MODREF to prevent recursive loop */
1042 wm->ldr.Flags |= LDR_LOAD_IN_PROGRESS;
1043 if (lpReserved) wm->ldr.LoadCount = -1; /* pin it if imported by the main exe */
1044 if (wm->ldr.ActivationContext) RtlActivateActivationContext( 0, wm->ldr.ActivationContext, &cookie );
1045
1046 /* Recursively attach all DLLs this one depends on */
1047 for ( i = 0; i < wm->nDeps; i++ )
1048 {
1049 if (!wm->deps[i]) continue;
1050 if ((status = process_attach( wm->deps[i], lpReserved )) != STATUS_SUCCESS) break;
1051 }
1052
1053 /* Call DLL entry point */
1054 if (status == STATUS_SUCCESS)
1055 {
1056 WINE_MODREF *prev = current_modref;
1057 current_modref = wm;
1058 status = MODULE_InitDLL( wm, DLL_PROCESS_ATTACH, lpReserved );
1059 if (status == STATUS_SUCCESS)
1060 wm->ldr.Flags |= LDR_PROCESS_ATTACHED;
1061 else
1062 {
1063 /* point to the name so LdrInitializeThunk can print it */
1064 last_failed_modref = wm;
1065 WARN("Initialization of %s failed\n", debugstr_w(wm->ldr.BaseDllName.Buffer));
1066 }
1067 current_modref = prev;
1068 }
1069
1070 if (!wm->ldr.InInitializationOrderModuleList.Flink)
1071 InsertTailList(&NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList,
1072 &wm->ldr.InInitializationOrderModuleList);
1073
1074 if (wm->ldr.ActivationContext) RtlDeactivateActivationContext( 0, cookie );
1075 /* Remove recursion flag */
1076 wm->ldr.Flags &= ~LDR_LOAD_IN_PROGRESS;
1077
1078 TRACE("(%s,%p) - END\n", debugstr_w(wm->ldr.BaseDllName.Buffer), lpReserved );
1079 return status;
1080 }
1081
1082
1083 /**********************************************************************
1084 * attach_implicitly_loaded_dlls
1085 *
1086 * Attach to the (builtin) dlls that have been implicitly loaded because
1087 * of a dependency at the Unix level, but not imported at the Win32 level.
1088 */
1089 static void attach_implicitly_loaded_dlls( LPVOID reserved )
1090 {
1091 for (;;)
1092 {
1093 PLIST_ENTRY mark, entry;
1094
1095 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
1096 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1097 {
1098 LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
1099
1100 if (mod->Flags & (LDR_LOAD_IN_PROGRESS | LDR_PROCESS_ATTACHED)) continue;
1101 TRACE( "found implicitly loaded %s, attaching to it\n",
1102 debugstr_w(mod->BaseDllName.Buffer));
1103 process_attach( CONTAINING_RECORD(mod, WINE_MODREF, ldr), reserved );
1104 break; /* restart the search from the start */
1105 }
1106 if (entry == mark) break; /* nothing found */
1107 }
1108 }
1109
1110
1111 /*************************************************************************
1112 * process_detach
1113 *
1114 * Send DLL process detach notifications. See the comment about calling
1115 * sequence at process_attach. Unless the bForceDetach flag
1116 * is set, only DLLs with zero refcount are notified.
1117 */
1118 static void process_detach( BOOL bForceDetach, LPVOID lpReserved )
1119 {
1120 PLIST_ENTRY mark, entry;
1121 PLDR_MODULE mod;
1122
1123 RtlEnterCriticalSection( &loader_section );
1124 if (bForceDetach) process_detaching = 1;
1125 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
1126 do
1127 {
1128 for (entry = mark->Blink; entry != mark; entry = entry->Blink)
1129 {
1130 mod = CONTAINING_RECORD(entry, LDR_MODULE,
1131 InInitializationOrderModuleList);
1132 /* Check whether to detach this DLL */
1133 if ( !(mod->Flags & LDR_PROCESS_ATTACHED) )
1134 continue;
1135 if ( mod->LoadCount && !bForceDetach )
1136 continue;
1137
1138 /* Call detach notification */
1139 mod->Flags &= ~LDR_PROCESS_ATTACHED;
1140 MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr),
1141 DLL_PROCESS_DETACH, lpReserved );
1142
1143 /* Restart at head of WINE_MODREF list, as entries might have
1144 been added and/or removed while performing the call ... */
1145 break;
1146 }
1147 } while (entry != mark);
1148
1149 RtlLeaveCriticalSection( &loader_section );
1150 }
1151
1152 /*************************************************************************
1153 * MODULE_DllThreadAttach
1154 *
1155 * Send DLL thread attach notifications. These are sent in the
1156 * reverse sequence of process detach notification.
1157 *
1158 */
1159 NTSTATUS MODULE_DllThreadAttach( LPVOID lpReserved )
1160 {
1161 PLIST_ENTRY mark, entry;
1162 PLDR_MODULE mod;
1163 NTSTATUS status;
1164
1165 /* don't do any attach calls if process is exiting */
1166 if (process_detaching) return STATUS_SUCCESS;
1167 /* FIXME: there is still a race here */
1168
1169 RtlEnterCriticalSection( &loader_section );
1170
1171 if ((status = alloc_thread_tls()) != STATUS_SUCCESS) goto done;
1172
1173 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
1174 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1175 {
1176 mod = CONTAINING_RECORD(entry, LDR_MODULE,
1177 InInitializationOrderModuleList);
1178 if ( !(mod->Flags & LDR_PROCESS_ATTACHED) )
1179 continue;
1180 if ( mod->Flags & LDR_NO_DLL_CALLS )
1181 continue;
1182
1183 MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr),
1184 DLL_THREAD_ATTACH, lpReserved );
1185 }
1186
1187 done:
1188 RtlLeaveCriticalSection( &loader_section );
1189 return status;
1190 }
1191
1192 /******************************************************************
1193 * LdrDisableThreadCalloutsForDll (NTDLL.@)
1194 *
1195 */
1196 NTSTATUS WINAPI LdrDisableThreadCalloutsForDll(HMODULE hModule)
1197 {
1198 WINE_MODREF *wm;
1199 NTSTATUS ret = STATUS_SUCCESS;
1200
1201 RtlEnterCriticalSection( &loader_section );
1202
1203 wm = get_modref( hModule );
1204 if (!wm || wm->ldr.TlsIndex != -1)
1205 ret = STATUS_DLL_NOT_FOUND;
1206 else
1207 wm->ldr.Flags |= LDR_NO_DLL_CALLS;
1208
1209 RtlLeaveCriticalSection( &loader_section );
1210
1211 return ret;
1212 }
1213
1214 /******************************************************************
1215 * LdrFindEntryForAddress (NTDLL.@)
1216 *
1217 * The loader_section must be locked while calling this function
1218 */
1219 NTSTATUS WINAPI LdrFindEntryForAddress(const void* addr, PLDR_MODULE* pmod)
1220 {
1221 PLIST_ENTRY mark, entry;
1222 PLDR_MODULE mod;
1223
1224 mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
1225 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1226 {
1227 mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
1228 if (mod->BaseAddress <= addr &&
1229 (const char *)addr < (char*)mod->BaseAddress + mod->SizeOfImage)
1230 {
1231 *pmod = mod;
1232 return STATUS_SUCCESS;
1233 }
1234 if (mod->BaseAddress > addr) break;
1235 }
1236 return STATUS_NO_MORE_ENTRIES;
1237 }
1238
1239 /******************************************************************
1240 * LdrLockLoaderLock (NTDLL.@)
1241 *
1242 * Note: flags are not implemented.
1243 * Flag 0x01 is used to raise exceptions on errors.
1244 * Flag 0x02 is used to avoid waiting on the section (does RtlTryEnterCriticalSection instead).
1245 */
1246 NTSTATUS WINAPI LdrLockLoaderLock( ULONG flags, ULONG *result, ULONG *magic )
1247 {
1248 if (flags) FIXME( "flags %x not supported\n", flags );
1249
1250 if (result) *result = 1;
1251 if (!magic) return STATUS_INVALID_PARAMETER_3;
1252 RtlEnterCriticalSection( &loader_section );
1253 *magic = GetCurrentThreadId();
1254 return STATUS_SUCCESS;
1255 }
1256
1257
1258 /******************************************************************
1259 * LdrUnlockLoaderUnlock (NTDLL.@)
1260 */
1261 NTSTATUS WINAPI LdrUnlockLoaderLock( ULONG flags, ULONG magic )
1262 {
1263 if (magic)
1264 {
1265 if (magic != GetCurrentThreadId()) return STATUS_INVALID_PARAMETER_2;
1266 RtlLeaveCriticalSection( &loader_section );
1267 }
1268 return STATUS_SUCCESS;
1269 }
1270
1271
1272 /******************************************************************
1273 * LdrGetProcedureAddress (NTDLL.@)
1274 */
1275 NTSTATUS WINAPI LdrGetProcedureAddress(HMODULE module, const ANSI_STRING *name,
1276 ULONG ord, PVOID *address)
1277 {
1278 IMAGE_EXPORT_DIRECTORY *exports;
1279 DWORD exp_size;
1280 NTSTATUS ret = STATUS_PROCEDURE_NOT_FOUND;
1281
1282 RtlEnterCriticalSection( &loader_section );
1283
1284 /* check if the module itself is invalid to return the proper error */
1285 if (!get_modref( module )) ret = STATUS_DLL_NOT_FOUND;
1286 else if ((exports = RtlImageDirectoryEntryToData( module, TRUE,
1287 IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size )))
1288 {
1289 LPCWSTR load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
1290 void *proc = name ? find_named_export( module, exports, exp_size, name->Buffer, -1, load_path )
1291 : find_ordinal_export( module, exports, exp_size, ord - exports->Base, load_path );
1292 if (proc)
1293 {
1294 *address = proc;
1295 ret = STATUS_SUCCESS;
1296 }
1297 }
1298
1299 RtlLeaveCriticalSection( &loader_section );
1300 return ret;
1301 }
1302
1303
1304 /***********************************************************************
1305 * is_fake_dll
1306 *
1307 * Check if a loaded native dll is a Wine fake dll.
1308 */
1309 static BOOL is_fake_dll( HANDLE handle )
1310 {
1311 static const char fakedll_signature[] = "Wine placeholder DLL";
1312 char buffer[sizeof(IMAGE_DOS_HEADER) + sizeof(fakedll_signature)];
1313 const IMAGE_DOS_HEADER *dos = (const IMAGE_DOS_HEADER *)buffer;
1314 IO_STATUS_BLOCK io;
1315 LARGE_INTEGER offset;
1316
1317 offset.QuadPart = 0;
1318 if (NtReadFile( handle, 0, NULL, 0, &io, buffer, sizeof(buffer), &offset, NULL )) return FALSE;
1319 if (io.Information < sizeof(buffer)) return FALSE;
1320 if (dos->e_magic != IMAGE_DOS_SIGNATURE) return FALSE;
1321 if (dos->e_lfanew >= sizeof(*dos) + sizeof(fakedll_signature) &&
1322 !memcmp( dos + 1, fakedll_signature, sizeof(fakedll_signature) )) return TRUE;
1323 return FALSE;
1324 }
1325
1326
1327 /***********************************************************************
1328 * get_builtin_fullname
1329 *
1330 * Build the full pathname for a builtin dll.
1331 */
1332 static WCHAR *get_builtin_fullname( const WCHAR *path, const char *filename )
1333 {
1334 static const WCHAR soW[] = {'.','s','o',0};
1335 WCHAR *p, *fullname;
1336 size_t i, len = strlen(filename);
1337
1338 /* check if path can correspond to the dll we have */
1339 if (path && (p = strrchrW( path, '\\' )))
1340 {
1341 p++;
1342 for (i = 0; i < len; i++)
1343 if (tolowerW(p[i]) != tolowerW( (WCHAR)filename[i]) ) break;
1344 if (i == len && (!p[len] || !strcmpiW( p + len, soW )))
1345 {
1346 /* the filename matches, use path as the full path */
1347 len += p - path;
1348 if ((fullname = RtlAllocateHeap( GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR) )))
1349 {
1350 memcpy( fullname, path, len * sizeof(WCHAR) );
1351 fullname[len] = 0;
1352 }
1353 return fullname;
1354 }
1355 }
1356
1357 if ((fullname = RtlAllocateHeap( GetProcessHeap(), 0,
1358 system_dir.MaximumLength + (len + 1) * sizeof(WCHAR) )))
1359 {
1360 memcpy( fullname, system_dir.Buffer, system_dir.Length );
1361 p = fullname + system_dir.Length / sizeof(WCHAR);
1362 if (p > fullname && p[-1] != '\\') *p++ = '\\';
1363 ascii_to_unicode( p, filename, len + 1 );
1364 }
1365 return fullname;
1366 }
1367
1368
1369 /***********************************************************************
1370 * load_builtin_callback
1371 *
1372 * Load a library in memory; callback function for wine_dll_register
1373 */
1374 static void load_builtin_callback( void *module, const char *filename )
1375 {
1376 static const WCHAR emptyW[1];
1377 IMAGE_NT_HEADERS *nt;
1378 WINE_MODREF *wm;
1379 WCHAR *fullname;
1380 const WCHAR *load_path;
1381
1382 if (!module)
1383 {
1384 ERR("could not map image for %s\n", filename ? filename : "main exe" );
1385 return;
1386 }
1387 if (!(nt = RtlImageNtHeader( module )))
1388 {
1389 ERR( "bad module for %s\n", filename ? filename : "main exe" );
1390 builtin_load_info->status = STATUS_INVALID_IMAGE_FORMAT;
1391 return;
1392 }
1393 virtual_create_system_view( module, nt->OptionalHeader.SizeOfImage,
1394 VPROT_SYSTEM | VPROT_IMAGE | VPROT_COMMITTED |
1395 VPROT_READ | VPROT_WRITECOPY | VPROT_EXEC );
1396
1397 /* create the MODREF */
1398
1399 if (!(fullname = get_builtin_fullname( builtin_load_info->filename, filename )))
1400 {
1401 ERR( "can't load %s\n", filename );
1402 builtin_load_info->status = STATUS_NO_MEMORY;
1403 return;
1404 }
1405
1406 wm = alloc_module( module, fullname );
1407 RtlFreeHeap( GetProcessHeap(), 0, fullname );
1408 if (!wm)
1409 {
1410 ERR( "can't load %s\n", filename );
1411 builtin_load_info->status = STATUS_NO_MEMORY;
1412 return;
1413 }
1414 wm->ldr.Flags |= LDR_WINE_INTERNAL;
1415
1416 if (!(nt->FileHeader.Characteristics & IMAGE_FILE_DLL) &&
1417 !NtCurrentTeb()->Peb->ImageBaseAddress) /* if we already have an executable, ignore this one */
1418 {
1419 NtCurrentTeb()->Peb->ImageBaseAddress = module;
1420 }
1421 else
1422 {
1423 /* fixup imports */
1424
1425 load_path = builtin_load_info->load_path;
1426 if (!load_path) load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
1427 if (!load_path) load_path = emptyW;
1428 if (fixup_imports( wm, load_path ) != STATUS_SUCCESS)
1429 {
1430 /* the module has only be inserted in the load & memory order lists */
1431 RemoveEntryList(&wm->ldr.InLoadOrderModuleList);
1432 RemoveEntryList(&wm->ldr.InMemoryOrderModuleList);
1433 /* FIXME: free the modref */
1434 builtin_load_info->status = STATUS_DLL_NOT_FOUND;
1435 return;
1436 }
1437 }
1438
1439 builtin_load_info->wm = wm;
1440 TRACE( "loaded %s %p %p\n", filename, wm, module );
1441
1442 /* send the DLL load event */
1443
1444 SERVER_START_REQ( load_dll )
1445 {
1446 req->handle = 0;
1447 req->base = wine_server_client_ptr( module );
1448 req->size = nt->OptionalHeader.SizeOfImage;
1449 req->dbg_offset = nt->FileHeader.PointerToSymbolTable;
1450 req->dbg_size = nt->FileHeader.NumberOfSymbols;
1451 req->name = wine_server_client_ptr( &wm->ldr.FullDllName.Buffer );
1452 wine_server_add_data( req, wm->ldr.FullDllName.Buffer, wm->ldr.FullDllName.Length );
1453 wine_server_call( req );
1454 }
1455 SERVER_END_REQ;
1456
1457 /* setup relay debugging entry points */
1458 if (TRACE_ON(relay)) RELAY_SetupDLL( module );
1459 }
1460
1461
1462 /******************************************************************************
1463 * load_native_dll (internal)
1464 */
1465 static NTSTATUS load_native_dll( LPCWSTR load_path, LPCWSTR name, HANDLE file,
1466 DWORD flags, WINE_MODREF** pwm )
1467 {
1468 void *module;
1469 HANDLE mapping;
1470 LARGE_INTEGER size;
1471 IMAGE_NT_HEADERS *nt;
1472 SIZE_T len = 0;
1473 WINE_MODREF *wm;
1474 NTSTATUS status;
1475
1476 TRACE("Trying native dll %s\n", debugstr_w(name));
1477
1478 size.QuadPart = 0;
1479 status = NtCreateSection( &mapping, STANDARD_RIGHTS_REQUIRED | SECTION_QUERY | SECTION_MAP_READ,
1480 NULL, &size, PAGE_READONLY, SEC_IMAGE, file );
1481 if (status != STATUS_SUCCESS) return status;
1482
1483 module = NULL;
1484 status = NtMapViewOfSection( mapping, NtCurrentProcess(),
1485 &module, 0, 0, &size, &len, ViewShare, 0, PAGE_READONLY );
1486 NtClose( mapping );
1487 if (status != STATUS_SUCCESS) return status;
1488
1489 /* create the MODREF */
1490
1491 if (!(wm = alloc_module( module, name ))) return STATUS_NO_MEMORY;
1492
1493 /* fixup imports */
1494
1495 if (!(flags & DONT_RESOLVE_DLL_REFERENCES))
1496 {
1497 if ((status = fixup_imports( wm, load_path )) != STATUS_SUCCESS)
1498 {
1499 /* the module has only be inserted in the load & memory order lists */
1500 RemoveEntryList(&wm->ldr.InLoadOrderModuleList);
1501 RemoveEntryList(&wm->ldr.InMemoryOrderModuleList);
1502
1503 /* FIXME: there are several more dangling references
1504 * left. Including dlls loaded by this dll before the
1505 * failed one. Unrolling is rather difficult with the
1506 * current structure and we can leave them lying
1507 * around with no problems, so we don't care.
1508 * As these might reference our wm, we don't free it.
1509 */
1510 return status;
1511 }
1512 }
1513
1514 /* send DLL load event */
1515
1516 nt = RtlImageNtHeader( module );
1517
1518 SERVER_START_REQ( load_dll )
1519 {
1520 req->handle = wine_server_obj_handle( file );
1521 req->base = wine_server_client_ptr( module );
1522 req->size = nt->OptionalHeader.SizeOfImage;
1523 req->dbg_offset = nt->FileHeader.PointerToSymbolTable;
1524 req->dbg_size = nt->FileHeader.NumberOfSymbols;
1525 req->name = wine_server_client_ptr( &wm->ldr.FullDllName.Buffer );
1526 wine_server_add_data( req, wm->ldr.FullDllName.Buffer, wm->ldr.FullDllName.Length );
1527 wine_server_call( req );
1528 }
1529 SERVER_END_REQ;
1530
1531 if ((wm->ldr.Flags & LDR_IMAGE_IS_DLL) && TRACE_ON(snoop)) SNOOP_SetupDLL( module );
1532
1533 TRACE_(loaddll)( "Loaded %s at %p: native\n", debugstr_w(wm->ldr.FullDllName.Buffer), module );
1534
1535 wm->ldr.LoadCount = 1;
1536 *pwm = wm;
1537 return STATUS_SUCCESS;
1538 }
1539
1540
1541 /***********************************************************************
1542 * load_builtin_dll
1543 */
1544 static NTSTATUS load_builtin_dll( LPCWSTR load_path, LPCWSTR path, HANDLE file,
1545 DWORD flags, WINE_MODREF** pwm )
1546 {
1547 char error[256], dllname[MAX_PATH];
1548 const WCHAR *name, *p;
1549 DWORD len, i;
1550 void *handle = NULL;
1551 struct builtin_load_info info, *prev_info;
1552
1553 /* Fix the name in case we have a full path and extension */
1554 name = path;
1555 if ((p = strrchrW( name, '\\' ))) name = p + 1;
1556 if ((p = strrchrW( name, '/' ))) name = p + 1;
1557
1558 /* load_library will modify info.status. Note also that load_library can be
1559 * called several times, if the .so file we're loading has dependencies.
1560 * info.status will gather all the errors we may get while loading all these
1561 * libraries
1562 */
1563 info.load_path = load_path;
1564 info.filename = NULL;
1565 info.status = STATUS_SUCCESS;
1566 info.wm = NULL;
1567
1568 if (file) /* we have a real file, try to load it */
1569 {
1570 UNICODE_STRING nt_name;
1571 ANSI_STRING unix_name;
1572
1573 TRACE("Trying built-in %s\n", debugstr_w(path));
1574
1575 if (!RtlDosPathNameToNtPathName_U( path, &nt_name, NULL, NULL ))
1576 return STATUS_DLL_NOT_FOUND;
1577
1578 if (wine_nt_to_unix_file_name( &nt_name, &unix_name, FILE_OPEN, FALSE ))
1579 {
1580 RtlFreeUnicodeString( &nt_name );
1581 return STATUS_DLL_NOT_FOUND;
1582 }
1583 prev_info = builtin_load_info;
1584 info.filename = nt_name.Buffer + 4; /* skip \??\ */
1585 builtin_load_info = &info;
1586 handle = wine_dlopen( unix_name.Buffer, RTLD_NOW, error, sizeof(error) );
1587 builtin_load_info = prev_info;
1588 RtlFreeUnicodeString( &nt_name );
1589 RtlFreeHeap( GetProcessHeap(), 0, unix_name.Buffer );
1590 if (!handle)
1591 {
1592 WARN( "failed to load .so lib for builtin %s: %s\n", debugstr_w(path), error );
1593 return STATUS_INVALID_IMAGE_FORMAT;
1594 }
1595 }
1596 else
1597 {
1598 int file_exists;
1599
1600 TRACE("Trying built-in %s\n", debugstr_w(name));
1601
1602 /* we don't want to depend on the current codepage here */
1603 len = strlenW( name ) + 1;
1604 if (len >= sizeof(dllname)) return STATUS_NAME_TOO_LONG;
1605 for (i = 0; i < len; i++)
1606 {
1607 if (name[i] > 127) return STATUS_DLL_NOT_FOUND;
1608 dllname[i] = (char)name[i];
1609 if (dllname[i] >= 'A' && dllname[i] <= 'Z') dllname[i] += 'a' - 'A';
1610 }
1611
1612 prev_info = builtin_load_info;
1613 builtin_load_info = &info;
1614 handle = wine_dll_load( dllname, error, sizeof(error), &file_exists );
1615 builtin_load_info = prev_info;
1616 if (!handle)
1617 {
1618 if (!file_exists)
1619 {
1620 /* The file does not exist -> WARN() */
1621 WARN("cannot open .so lib for builtin %s: %s\n", debugstr_w(name), error);
1622 return STATUS_DLL_NOT_FOUND;
1623 }
1624 /* ERR() for all other errors (missing functions, ...) */
1625 ERR("failed to load .so lib for builtin %s: %s\n", debugstr_w(name), error );
1626 return STATUS_PROCEDURE_NOT_FOUND;
1627 }
1628 }
1629
1630 if (info.status != STATUS_SUCCESS)
1631 {
1632 wine_dll_unload( handle );
1633 return info.status;
1634 }
1635
1636 if (!info.wm)
1637 {
1638 PLIST_ENTRY mark, entry;
1639
1640 /* The constructor wasn't called, this means the .so is already
1641 * loaded under a different name. Try to find the wm for it. */
1642
1643 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
1644 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1645 {
1646 LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
1647 if (mod->Flags & LDR_WINE_INTERNAL && mod->SectionHandle == handle)
1648 {
1649 info.wm = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
1650 TRACE( "Found %s at %p for builtin %s\n",
1651 debugstr_w(info.wm->ldr.FullDllName.Buffer), info.wm->ldr.BaseAddress, debugstr_w(path) );
1652 break;
1653 }
1654 }
1655 wine_dll_unload( handle ); /* release the libdl refcount */
1656 if (!info.wm) return STATUS_INVALID_IMAGE_FORMAT;
1657 if (info.wm->ldr.LoadCount != -1) info.wm->ldr.LoadCount++;
1658 }
1659 else
1660 {
1661 TRACE_(loaddll)( "Loaded %s at %p: builtin\n", debugstr_w(info.wm->ldr.FullDllName.Buffer), info.wm->ldr.BaseAddress );
1662 info.wm->ldr.LoadCount = 1;
1663 info.wm->ldr.SectionHandle = handle;
1664 }
1665
1666 *pwm = info.wm;
1667 return STATUS_SUCCESS;
1668 }
1669
1670
1671 /***********************************************************************
1672 * find_actctx_dll
1673 *
1674 * Find the full path (if any) of the dll from the activation context.
1675 */
1676 static NTSTATUS find_actctx_dll( LPCWSTR libname, LPWSTR *fullname )
1677 {
1678 static const WCHAR winsxsW[] = {'\\','w','i','n','s','x','s','\\'};
1679 static const WCHAR dotManifestW[] = {'.','m','a','n','i','f','e','s','t',0};
1680
1681 ACTIVATION_CONTEXT_ASSEMBLY_DETAILED_INFORMATION *info;
1682 ACTCTX_SECTION_KEYED_DATA data;
1683 UNICODE_STRING nameW;
1684 NTSTATUS status;
1685 SIZE_T needed, size = 1024;
1686 WCHAR *p;
1687
1688 RtlInitUnicodeString( &nameW, libname );
1689 data.cbSize = sizeof(data);
1690 status = RtlFindActivationContextSectionString( FIND_ACTCTX_SECTION_KEY_RETURN_HACTCTX, NULL,
1691 ACTIVATION_CONTEXT_SECTION_DLL_REDIRECTION,
1692 &nameW, &data );
1693 if (status != STATUS_SUCCESS) return status;
1694
1695 for (;;)
1696 {
1697 if (!(info = RtlAllocateHeap( GetProcessHeap(), 0, size )))
1698 {
1699 status = STATUS_NO_MEMORY;
1700 goto done;
1701 }
1702 status = RtlQueryInformationActivationContext( 0, data.hActCtx, &data.ulAssemblyRosterIndex,
1703 AssemblyDetailedInformationInActivationContext,
1704 info, size, &needed );
1705 if (status == STATUS_SUCCESS) break;
1706 if (status != STATUS_BUFFER_TOO_SMALL) goto done;
1707 RtlFreeHeap( GetProcessHeap(), 0, info );
1708 size = needed;
1709 /* restart with larger buffer */
1710 }
1711
1712 if ((p = strrchrW( info->lpAssemblyManifestPath, '\\' )))
1713 {
1714 DWORD dirlen = info->ulAssemblyDirectoryNameLength / sizeof(WCHAR);
1715
1716 p++;
1717 if (strncmpiW( p, info->lpAssemblyDirectoryName, dirlen ) || strcmpiW( p + dirlen, dotManifestW ))
1718 {
1719 /* manifest name does not match directory name, so it's not a global
1720 * windows/winsxs manifest; use the manifest directory name instead */
1721 dirlen = p - info->lpAssemblyManifestPath;
1722 needed = (dirlen + 1) * sizeof(WCHAR) + nameW.Length;
1723 if (!(*fullname = p = RtlAllocateHeap( GetProcessHeap(), 0, needed )))
1724 {
1725 status = STATUS_NO_MEMORY;
1726 goto done;
1727 }
1728 memcpy( p, info->lpAssemblyManifestPath, dirlen * sizeof(WCHAR) );
1729 p += dirlen;
1730 strcpyW( p, libname );
1731 goto done;
1732 }
1733 }
1734
1735 needed = (windows_dir.Length + sizeof(winsxsW) + info->ulAssemblyDirectoryNameLength +
1736 nameW.Length + 2*sizeof(WCHAR));
1737
1738 if (!(*fullname = p = RtlAllocateHeap( GetProcessHeap(), 0, needed )))
1739 {
1740 status = STATUS_NO_MEMORY;
1741 goto done;
1742 }
1743 memcpy( p, windows_dir.Buffer, windows_dir.Length );
1744 p += windows_dir.Length / sizeof(WCHAR);
1745 memcpy( p, winsxsW, sizeof(winsxsW) );
1746 p += sizeof(winsxsW) / sizeof(WCHAR);
1747 memcpy( p, info->lpAssemblyDirectoryName, info->ulAssemblyDirectoryNameLength );
1748 p += info->ulAssemblyDirectoryNameLength / sizeof(WCHAR);
1749 *p++ = '\\';
1750 strcpyW( p, libname );
1751 done:
1752 RtlFreeHeap( GetProcessHeap(), 0, info );
1753 RtlReleaseActivationContext( data.hActCtx );
1754 return status;
1755 }
1756
1757
1758 /***********************************************************************
1759 * find_dll_file
1760 *
1761 * Find the file (or already loaded module) for a given dll name.
1762 */
1763 static NTSTATUS find_dll_file( const WCHAR *load_path, const WCHAR *libname,
1764 WCHAR *filename, ULONG *size, WINE_MODREF **pwm, HANDLE *handle )
1765 {
1766 OBJECT_ATTRIBUTES attr;
1767 IO_STATUS_BLOCK io;
1768 UNICODE_STRING nt_name;
1769 WCHAR *file_part, *ext, *dllname;
1770 ULONG len;
1771
1772 /* first append .dll if needed */
1773
1774 dllname = NULL;
1775 if (!(ext = strrchrW( libname, '.')) || strchrW( ext, '/' ) || strchrW( ext, '\\'))
1776 {
1777 if (!(dllname = RtlAllocateHeap( GetProcessHeap(), 0,
1778 (strlenW(libname) * sizeof(WCHAR)) + sizeof(dllW) )))
1779 return STATUS_NO_MEMORY;
1780 strcpyW( dllname, libname );
1781 strcatW( dllname, dllW );
1782 libname = dllname;
1783 }
1784
1785 nt_name.Buffer = NULL;
1786
1787 if (!contains_path( libname ))
1788 {
1789 NTSTATUS status;
1790 WCHAR *fullname = NULL;
1791
1792 if ((*pwm = find_basename_module( libname )) != NULL) goto found;
1793
1794 status = find_actctx_dll( libname, &fullname );
1795 if (status == STATUS_SUCCESS)
1796 {
1797 TRACE ("found %s for %s\n", debugstr_w(fullname), debugstr_w(libname) );
1798 RtlFreeHeap( GetProcessHeap(), 0, dllname );
1799 libname = dllname = fullname;
1800 }
1801 else if (status != STATUS_SXS_KEY_NOT_FOUND)
1802 {
1803 RtlFreeHeap( GetProcessHeap(), 0, dllname );
1804 return status;
1805 }
1806 }
1807
1808 if (RtlDetermineDosPathNameType_U( libname ) == RELATIVE_PATH)
1809 {
1810 /* we need to search for it */
1811 len = RtlDosSearchPath_U( load_path, libname, NULL, *size, filename, &file_part );
1812 if (len)
1813 {
1814 if (len >= *size) goto overflow;
1815 if ((*pwm = find_fullname_module( filename )) || !handle) goto found;
1816
1817 if (!RtlDosPathNameToNtPathName_U( filename, &nt_name, NULL, NULL ))
1818 {
1819 RtlFreeHeap( GetProcessHeap(), 0, dllname );
1820 return STATUS_NO_MEMORY;
1821 }
1822 attr.Length = sizeof(attr);
1823 attr.RootDirectory = 0;
1824 attr.Attributes = OBJ_CASE_INSENSITIVE;
1825 attr.ObjectName = &nt_name;
1826 attr.SecurityDescriptor = NULL;
1827 attr.SecurityQualityOfService = NULL;
1828 if (NtOpenFile( handle, GENERIC_READ, &attr, &io, FILE_SHARE_READ|FILE_SHARE_DELETE, 0 )) *handle = 0;
1829 goto found;
1830 }
1831
1832 /* not found */
1833
1834 if (!contains_path( libname ))
1835 {
1836 /* if libname doesn't contain a path at all, we simply return the name as is,
1837 * to be loaded as builtin */
1838 len = strlenW(libname) * sizeof(WCHAR);
1839 if (len >= *size) goto overflow;
1840 strcpyW( filename, libname );
1841 goto found;
1842 }
1843 }
1844
1845 /* absolute path name, or relative path name but not found above */
1846
1847 if (!RtlDosPathNameToNtPathName_U( libname, &nt_name, &file_part, NULL ))
1848 {
1849 RtlFreeHeap( GetProcessHeap(), 0, dllname );
1850 return STATUS_NO_MEMORY;
1851 }
1852 len = nt_name.Length - 4*sizeof(WCHAR); /* for \??\ prefix */
1853 if (len >= *size) goto overflow;
1854 memcpy( filename, nt_name.Buffer + 4, len + sizeof(WCHAR) );
1855 if (!(*pwm = find_fullname_module( filename )) && handle)
1856 {
1857 attr.Length = sizeof(attr);
1858 attr.RootDirectory = 0;
1859 attr.Attributes = OBJ_CASE_INSENSITIVE;
1860 attr.ObjectName = &nt_name;
1861 attr.SecurityDescriptor = NULL;
1862 attr.SecurityQualityOfService = NULL;
1863 if (NtOpenFile( handle, GENERIC_READ, &attr, &io, FILE_SHARE_READ|FILE_SHARE_DELETE, 0 )) *handle = 0;
1864 }
1865 found:
1866 RtlFreeUnicodeString( &nt_name );
1867 RtlFreeHeap( GetProcessHeap(), 0, dllname );
1868 return STATUS_SUCCESS;
1869
1870 overflow:
1871 RtlFreeUnicodeString( &nt_name );
1872 RtlFreeHeap( GetProcessHeap(), 0, dllname );
1873 *size = len + sizeof(WCHAR);
1874 return STATUS_BUFFER_TOO_SMALL;
1875 }
1876
1877
1878 /***********************************************************************
1879 * load_dll (internal)
1880 *
1881 * Load a PE style module according to the load order.
1882 * The loader_section must be locked while calling this function.
1883 */
1884 static NTSTATUS load_dll( LPCWSTR load_path, LPCWSTR libname, DWORD flags, WINE_MODREF** pwm )
1885 {
1886 enum loadorder loadorder;
1887 WCHAR buffer[32];
1888 WCHAR *filename;
1889 ULONG size;
1890 WINE_MODREF *main_exe;
1891 HANDLE handle = 0;
1892 NTSTATUS nts;
1893
1894 TRACE( "looking for %s in %s\n", debugstr_w(libname), debugstr_w(load_path) );
1895
1896 *pwm = NULL;
1897 filename = buffer;
1898 size = sizeof(buffer);
1899 for (;;)
1900 {
1901 nts = find_dll_file( load_path, libname, filename, &size, pwm, &handle );
1902 if (nts == STATUS_SUCCESS) break;
1903 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
1904 if (nts != STATUS_BUFFER_TOO_SMALL) return nts;
1905 /* grow the buffer and retry */
1906 if (!(filename = RtlAllocateHeap( GetProcessHeap(), 0, size ))) return STATUS_NO_MEMORY;
1907 }
1908
1909 if (*pwm) /* found already loaded module */
1910 {
1911 if ((*pwm)->ldr.LoadCount != -1) (*pwm)->ldr.LoadCount++;
1912
1913 if (!(flags & DONT_RESOLVE_DLL_REFERENCES)) fixup_imports( *pwm, load_path );
1914
1915 TRACE("Found %s for %s at %p, count=%d\n",
1916 debugstr_w((*pwm)->ldr.FullDllName.Buffer), debugstr_w(libname),
1917 (*pwm)->ldr.BaseAddress, (*pwm)->ldr.LoadCount);
1918 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
1919 return STATUS_SUCCESS;
1920 }
1921
1922 main_exe = get_modref( NtCurrentTeb()->Peb->ImageBaseAddress );
1923 loadorder = get_load_order( main_exe ? main_exe->ldr.BaseDllName.Buffer : NULL, filename );
1924
1925 if (handle && is_fake_dll( handle ))
1926 {
1927 TRACE( "%s is a fake Wine dll\n", debugstr_w(filename) );
1928 NtClose( handle );
1929 handle = 0;
1930 }
1931
1932 switch(loadorder)
1933 {
1934 case LO_INVALID:
1935 nts = STATUS_NO_MEMORY;
1936 break;
1937 case LO_DISABLED:
1938 nts = STATUS_DLL_NOT_FOUND;
1939 break;
1940 case LO_NATIVE:
1941 case LO_NATIVE_BUILTIN:
1942 if (!handle) nts = STATUS_DLL_NOT_FOUND;
1943 else
1944 {
1945 nts = load_native_dll( load_path, filename, handle, flags, pwm );
1946 if (nts == STATUS_INVALID_FILE_FOR_SECTION)
1947 /* not in PE format, maybe it's a builtin */
1948 nts = load_builtin_dll( load_path, filename, handle, flags, pwm );
1949 }
1950 if (nts == STATUS_DLL_NOT_FOUND && loadorder == LO_NATIVE_BUILTIN)
1951 nts = load_builtin_dll( load_path, filename, 0, flags, pwm );
1952 break;
1953 case LO_BUILTIN:
1954 case LO_BUILTIN_NATIVE:
1955 case LO_DEFAULT: /* default is builtin,native */
1956 nts = load_builtin_dll( load_path, filename, handle, flags, pwm );
1957 if (!handle) break; /* nothing else we can try */
1958 /* file is not a builtin library, try without using the specified file */
1959 if (nts != STATUS_SUCCESS)
1960 nts = load_builtin_dll( load_path, filename, 0, flags, pwm );
1961 if (nts == STATUS_SUCCESS && loadorder == LO_DEFAULT &&
1962 (MODULE_InitDLL( *pwm, DLL_WINE_PREATTACH, NULL ) != STATUS_SUCCESS))
1963 {
1964 /* stub-only dll, try native */
1965 TRACE( "%s pre-attach returned FALSE, preferring native\n", debugstr_w(filename) );
1966 LdrUnloadDll( (*pwm)->ldr.BaseAddress );
1967 nts = STATUS_DLL_NOT_FOUND;
1968 }
1969 if (nts == STATUS_DLL_NOT_FOUND && loadorder != LO_BUILTIN)
1970 nts = load_native_dll( load_path, filename, handle, flags, pwm );
1971 break;
1972 }
1973
1974 if (nts == STATUS_SUCCESS)
1975 {
1976 /* Initialize DLL just loaded */
1977 TRACE("Loaded module %s (%s) at %p\n", debugstr_w(filename),
1978 ((*pwm)->ldr.Flags & LDR_WINE_INTERNAL) ? "builtin" : "native",
1979 (*pwm)->ldr.BaseAddress);
1980 if (handle) NtClose( handle );
1981 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
1982 return nts;
1983 }
1984
1985 WARN("Failed to load module %s; status=%x\n", debugstr_w(libname), nts);
1986 if (handle) NtClose( handle );
1987 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
1988 return nts;
1989 }
1990
1991 /******************************************************************
1992 * LdrLoadDll (NTDLL.@)
1993 */
1994 NTSTATUS WINAPI LdrLoadDll(LPCWSTR path_name, DWORD flags,
1995 const UNICODE_STRING *libname, HMODULE* hModule)
1996 {
1997 WINE_MODREF *wm;
1998 NTSTATUS nts;
1999
2000 RtlEnterCriticalSection( &loader_section );
2001
2002 if (!path_name) path_name = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
2003 nts = load_dll( path_name, libname->Buffer, flags, &wm );
2004
2005 if (nts == STATUS_SUCCESS && !(wm->ldr.Flags & LDR_DONT_RESOLVE_REFS))
2006 {
2007 nts = process_attach( wm, NULL );
2008 if (nts != STATUS_SUCCESS)
2009 {
2010 LdrUnloadDll(wm->ldr.BaseAddress);
2011 wm = NULL;
2012 }
2013 }
2014 *hModule = (wm) ? wm->ldr.BaseAddress : NULL;
2015
2016 RtlLeaveCriticalSection( &loader_section );
2017 return nts;
2018 }
2019
2020
2021 /******************************************************************
2022 * LdrGetDllHandle (NTDLL.@)
2023 */
2024 NTSTATUS WINAPI LdrGetDllHandle( LPCWSTR load_path, ULONG flags, const UNICODE_STRING *name, HMODULE *base )
2025 {
2026 NTSTATUS status;
2027 WCHAR buffer[128];
2028 WCHAR *filename;
2029 ULONG size;
2030 WINE_MODREF *wm;
2031
2032 RtlEnterCriticalSection( &loader_section );
2033
2034 if (!load_path) load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
2035
2036 filename = buffer;
2037 size = sizeof(buffer);
2038 for (;;)
2039 {
2040 status = find_dll_file( load_path, name->Buffer, filename, &size, &wm, NULL );
2041 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
2042 if (status != STATUS_BUFFER_TOO_SMALL) break;
2043 /* grow the buffer and retry */
2044 if (!(filename = RtlAllocateHeap( GetProcessHeap(), 0, size )))
2045 {
2046 status = STATUS_NO_MEMORY;
2047 break;
2048 }
2049 }
2050
2051 if (status == STATUS_SUCCESS)
2052 {
2053 if (wm) *base = wm->ldr.BaseAddress;
2054 else status = STATUS_DLL_NOT_FOUND;
2055 }
2056
2057 RtlLeaveCriticalSection( &loader_section );
2058 TRACE( "%s -> %p (load path %s)\n", debugstr_us(name), status ? NULL : *base, debugstr_w(load_path) );
2059 return status;
2060 }
2061
2062
2063 /******************************************************************
2064 * LdrAddRefDll (NTDLL.@)
2065 */
2066 NTSTATUS WINAPI LdrAddRefDll( ULONG flags, HMODULE module )
2067 {
2068 NTSTATUS ret = STATUS_SUCCESS;
2069 WINE_MODREF *wm;
2070
2071 if (flags) FIXME( "%p flags %x not implemented\n", module, flags );
2072
2073 RtlEnterCriticalSection( &loader_section );
2074
2075 if ((wm = get_modref( module )))
2076 {
2077 if (wm->ldr.LoadCount != -1) wm->ldr.LoadCount++;
2078 TRACE( "(%s) ldr.LoadCount: %d\n", debugstr_w(wm->ldr.BaseDllName.Buffer), wm->ldr.LoadCount );
2079 }
2080 else ret = STATUS_INVALID_PARAMETER;
2081
2082 RtlLeaveCriticalSection( &loader_section );
2083 return ret;
2084 }
2085
2086
2087 /***********************************************************************
2088 * LdrProcessRelocationBlock (NTDLL.@)
2089 *
2090 * Apply relocations to a given page of a mapped PE image.
2091 */
2092 IMAGE_BASE_RELOCATION * WINAPI LdrProcessRelocationBlock( void *page, UINT count,
2093 USHORT *relocs, INT_PTR delta )
2094 {
2095 while (count--)
2096 {
2097 USHORT offset = *relocs & 0xfff;
2098 int type = *relocs >> 12;
2099 switch(type)
2100 {
2101 case IMAGE_REL_BASED_ABSOLUTE:
2102 break;
2103 #ifdef __i386__
2104 case IMAGE_REL_BASED_HIGH:
2105 *(short *)((char *)page + offset) += HIWORD(delta);
2106 break;
2107 case IMAGE_REL_BASED_LOW:
2108 *(short *)((char *)page + offset) += LOWORD(delta);
2109 break;
2110 case IMAGE_REL_BASED_HIGHLOW:
2111 *(int *)((char *)page + offset) += delta;
2112 break;
2113 #elif defined(__x86_64__)
2114 case IMAGE_REL_BASED_DIR64:
2115 *(INT_PTR *)((char *)page + offset) += delta;
2116 break;
2117 #endif
2118 default:
2119 FIXME("Unknown/unsupported fixup type %x.\n", type);
2120 return NULL;
2121 }
2122 relocs++;
2123 }
2124 return (IMAGE_BASE_RELOCATION *)relocs; /* return address of next block */
2125 }
2126
2127
2128 /******************************************************************
2129 * LdrQueryProcessModuleInformation
2130 *
2131 */
2132 NTSTATUS WINAPI LdrQueryProcessModuleInformation(PSYSTEM_MODULE_INFORMATION smi,
2133 ULONG buf_size, ULONG* req_size)
2134 {
2135 SYSTEM_MODULE* sm = &smi->Modules[0];
2136 ULONG size = sizeof(ULONG);
2137 NTSTATUS nts = STATUS_SUCCESS;
2138 ANSI_STRING str;
2139 char* ptr;
2140 PLIST_ENTRY mark, entry;
2141 PLDR_MODULE mod;
2142 WORD id = 0;
2143
2144 smi->ModulesCount = 0;
2145
2146 RtlEnterCriticalSection( &loader_section );
2147 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
2148 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
2149 {
2150 mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
2151 size += sizeof(*sm);
2152 if (size <= buf_size)
2153 {
2154 sm->Reserved1 = 0; /* FIXME */
2155 sm->Reserved2 = 0; /* FIXME */
2156 sm->ImageBaseAddress = mod->BaseAddress;
2157 sm->ImageSize = mod->SizeOfImage;
2158 sm->Flags = mod->Flags;
2159 sm->Id = id++;
2160 sm->Rank = 0; /* FIXME */
2161 sm->Unknown = 0; /* FIXME */
2162 str.Length = 0;
2163 str.MaximumLength = MAXIMUM_FILENAME_LENGTH;
2164 str.Buffer = (char*)sm->Name;
2165 RtlUnicodeStringToAnsiString(&str, &mod->FullDllName, FALSE);
2166 ptr = strrchr(str.Buffer, '\\');
2167 sm->NameOffset = (ptr != NULL) ? (ptr - str.Buffer + 1) : 0;
2168
2169 smi->ModulesCount++;
2170 sm++;
2171 }
2172 else nts = STATUS_INFO_LENGTH_MISMATCH;
2173 }
2174 RtlLeaveCriticalSection( &loader_section );
2175
2176 if (req_size) *req_size = size;
2177
2178 return nts;
2179 }
2180
2181
2182 /******************************************************************
2183 * RtlDllShutdownInProgress (NTDLL.@)
2184 */
2185 BOOLEAN WINAPI RtlDllShutdownInProgress(void)
2186 {
2187 return process_detaching;
2188 }
2189
2190
2191 /******************************************************************
2192 * LdrShutdownProcess (NTDLL.@)
2193 *
2194 */
2195 void WINAPI LdrShutdownProcess(void)
2196 {
2197 TRACE("()\n");
2198 process_detach( TRUE, (LPVOID)1 );
2199 }
2200
2201 /******************************************************************
2202 * LdrShutdownThread (NTDLL.@)
2203 *
2204 */
2205 void WINAPI LdrShutdownThread(void)
2206 {
2207 PLIST_ENTRY mark, entry;
2208 PLDR_MODULE mod;
2209
2210 TRACE("()\n");
2211
2212 /* don't do any detach calls if process is exiting */
2213 if (process_detaching) return;
2214 /* FIXME: there is still a race here */
2215
2216 RtlEnterCriticalSection( &loader_section );
2217
2218 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
2219 for (entry = mark->Blink; entry != mark; entry = entry->Blink)
2220 {
2221 mod = CONTAINING_RECORD(entry, LDR_MODULE,
2222 InInitializationOrderModuleList);
2223 if ( !(mod->Flags & LDR_PROCESS_ATTACHED) )
2224 continue;
2225 if ( mod->Flags & LDR_NO_DLL_CALLS )
2226 continue;
2227
2228 MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr),
2229 DLL_THREAD_DETACH, NULL );
2230 }
2231
2232 RtlLeaveCriticalSection( &loader_section );
2233 RtlFreeHeap( GetProcessHeap(), 0, NtCurrentTeb()->ThreadLocalStoragePointer );
2234 }
2235
2236
2237 /***********************************************************************
2238 * free_modref
2239 *
2240 */
2241 static void free_modref( WINE_MODREF *wm )
2242 {
2243 RemoveEntryList(&wm->ldr.InLoadOrderModuleList);
2244 RemoveEntryList(&wm->ldr.InMemoryOrderModuleList);
2245 if (wm->ldr.InInitializationOrderModuleList.Flink)
2246 RemoveEntryList(&wm->ldr.InInitializationOrderModuleList);
2247
2248 TRACE(" unloading %s\n", debugstr_w(wm->ldr.FullDllName.Buffer));
2249 if (!TRACE_ON(module))
2250 TRACE_(loaddll)("Unloaded module %s : %s\n",
2251 debugstr_w(wm->ldr.FullDllName.Buffer),
2252 (wm->ldr.Flags & LDR_WINE_INTERNAL) ? "builtin" : "native" );
2253
2254 SERVER_START_REQ( unload_dll )
2255 {
2256 req->base = wine_server_client_ptr( wm->ldr.BaseAddress );
2257 wine_server_call( req );
2258 }
2259 SERVER_END_REQ;
2260
2261 RtlReleaseActivationContext( wm->ldr.ActivationContext );
2262 NtUnmapViewOfSection( NtCurrentProcess(), wm->ldr.BaseAddress );
2263 if (wm->ldr.Flags & LDR_WINE_INTERNAL) wine_dll_unload( wm->ldr.SectionHandle );
2264 if (cached_modref == wm) cached_modref = NULL;
2265 RtlFreeUnicodeString( &wm->ldr.FullDllName );
2266 RtlFreeHeap( GetProcessHeap(), 0, wm->deps );
2267 RtlFreeHeap( GetProcessHeap(), 0, wm );
2268 }
2269
2270 /***********************************************************************
2271 * MODULE_FlushModrefs
2272 *
2273 * Remove all unused modrefs and call the internal unloading routines
2274 * for the library type.
2275 *
2276 * The loader_section must be locked while calling this function.
2277 */
2278 static void MODULE_FlushModrefs(void)
2279 {
2280 PLIST_ENTRY mark, entry, prev;
2281 PLDR_MODULE mod;
2282 WINE_MODREF*wm;
2283
2284 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
2285 for (entry = mark->Blink; entry != mark; entry = prev)
2286 {
2287 mod = CONTAINING_RECORD(entry, LDR_MODULE, InInitializationOrderModuleList);
2288 wm = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
2289 prev = entry->Blink;
2290 if (!mod->LoadCount) free_modref( wm );
2291 }
2292
2293 /* check load order list too for modules that haven't been initialized yet */
2294 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
2295 for (entry = mark->Blink; entry != mark; entry = prev)
2296 {
2297 mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
2298 wm = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
2299 prev = entry->Blink;
2300 if (!mod->LoadCount) free_modref( wm );
2301 }
2302 }
2303
2304 /***********************************************************************
2305 * MODULE_DecRefCount
2306 *
2307 * The loader_section must be locked while calling this function.
2308 */
2309 static void MODULE_DecRefCount( WINE_MODREF *wm )
2310 {
2311 int i;
2312
2313 if ( wm->ldr.Flags & LDR_UNLOAD_IN_PROGRESS )
2314 return;
2315
2316 if ( wm->ldr.LoadCount <= 0 )
2317 return;
2318
2319 --wm->ldr.LoadCount;
2320 TRACE("(%s) ldr.LoadCount: %d\n", debugstr_w(wm->ldr.BaseDllName.Buffer), wm->ldr.LoadCount );
2321
2322 if ( wm->ldr.LoadCount == 0 )
2323 {
2324 wm->ldr.Flags |= LDR_UNLOAD_IN_PROGRESS;
2325
2326 for ( i = 0; i < wm->nDeps; i++ )
2327 if ( wm->deps[i] )
2328 MODULE_DecRefCount( wm->deps[i] );
2329
2330 wm->ldr.Flags &= ~LDR_UNLOAD_IN_PROGRESS;
2331 }
2332 }
2333
2334 /******************************************************************
2335 * LdrUnloadDll (NTDLL.@)
2336 *
2337 *
2338 */
2339 NTSTATUS WINAPI LdrUnloadDll( HMODULE hModule )
2340 {
2341 NTSTATUS retv = STATUS_SUCCESS;
2342
2343 TRACE("(%p)\n", hModule);
2344
2345 RtlEnterCriticalSection( &loader_section );
2346
2347 /* if we're stopping the whole process (and forcing the removal of all
2348 * DLLs) the library will be freed anyway
2349 */
2350 if (!process_detaching)
2351 {
2352 WINE_MODREF *wm;
2353
2354 free_lib_count++;
2355 if ((wm = get_modref( hModule )) != NULL)
2356 {
2357 TRACE("(%s) - START\n", debugstr_w(wm->ldr.BaseDllName.Buffer));
2358
2359 /* Recursively decrement reference counts */
2360 MODULE_DecRefCount( wm );
2361
2362 /* Call process detach notifications */
2363 if ( free_lib_count <= 1 )
2364 {
2365 process_detach( FALSE, NULL );
2366 MODULE_FlushModrefs();
2367 }
2368
2369 TRACE("END\n");
2370 }
2371 else
2372 retv = STATUS_DLL_NOT_FOUND;
2373
2374 free_lib_count--;
2375 }
2376
2377 RtlLeaveCriticalSection( &loader_section );
2378
2379 return retv;
2380 }
2381
2382 /***********************************************************************
2383 * RtlImageNtHeader (NTDLL.@)
2384 */
2385 PIMAGE_NT_HEADERS WINAPI RtlImageNtHeader(HMODULE hModule)
2386 {
2387 IMAGE_NT_HEADERS *ret;
2388
2389 __TRY
2390 {
2391 IMAGE_DOS_HEADER *dos = (IMAGE_DOS_HEADER *)hModule;
2392
2393 ret = NULL;
2394 if (dos->e_magic == IMAGE_DOS_SIGNATURE)
2395 {
2396 ret = (IMAGE_NT_HEADERS *)((char *)dos + dos->e_lfanew);
2397 if (ret->Signature != IMAGE_NT_SIGNATURE) ret = NULL;
2398 }
2399 }
2400 __EXCEPT_PAGE_FAULT
2401 {
2402 return NULL;
2403 }
2404 __ENDTRY
2405 return ret;
2406 }
2407
2408
2409 /***********************************************************************
2410 * attach_process_dlls
2411 *
2412 * Initial attach to all the dlls loaded by the process.
2413 */
2414 static NTSTATUS attach_process_dlls( void *wm )
2415 {
2416 NTSTATUS status;
2417
2418 pthread_sigmask( SIG_UNBLOCK, &server_block_set, NULL );
2419
2420 RtlEnterCriticalSection( &loader_section );
2421 if ((status = process_attach( wm, (LPVOID)1 )) != STATUS_SUCCESS)
2422 {
2423 if (last_failed_modref)
2424 ERR( "%s failed to initialize, aborting\n",
2425 debugstr_w(last_failed_modref->ldr.BaseDllName.Buffer) + 1 );
2426 return status;
2427 }
2428 attach_implicitly_loaded_dlls( (LPVOID)1 );
2429 RtlLeaveCriticalSection( &loader_section );
2430 return status;
2431 }
2432
2433
2434 /******************************************************************
2435 * LdrInitializeThunk (NTDLL.@)
2436 *
2437 */
2438 void WINAPI LdrInitializeThunk( ULONG unknown1, ULONG unknown2, ULONG unknown3, ULONG unknown4 )
2439 {
2440 NTSTATUS status;
2441 WINE_MODREF *wm;
2442 LPCWSTR load_path;
2443 PEB *peb = NtCurrentTeb()->Peb;
2444 IMAGE_NT_HEADERS *nt = RtlImageNtHeader( peb->ImageBaseAddress );
2445
2446 if (main_exe_file) NtClose( main_exe_file ); /* at this point the main module is created */
2447
2448 /* allocate the modref for the main exe (if not already done) */
2449 wm = get_modref( peb->ImageBaseAddress );
2450 assert( wm );
2451 if (wm->ldr.Flags & LDR_IMAGE_IS_DLL)
2452 {
2453 ERR("%s is a dll, not an executable\n", debugstr_w(wm->ldr.FullDllName.Buffer) );
2454 exit(1);
2455 }
2456
2457 peb->LoaderLock = &loader_section;
2458 peb->ProcessParameters->ImagePathName = wm->ldr.FullDllName;
2459 version_init( wm->ldr.FullDllName.Buffer );
2460
2461 /* the main exe needs to be the first in the load order list */
2462 RemoveEntryList( &wm->ldr.InLoadOrderModuleList );
2463 InsertHeadList( &peb->LdrData->InLoadOrderModuleList, &wm->ldr.InLoadOrderModuleList );
2464
2465 if ((status = virtual_alloc_thread_stack( NtCurrentTeb(), 0, 0 )) != STATUS_SUCCESS) goto error;
2466 if ((status = server_init_process_done()) != STATUS_SUCCESS) goto error;
2467
2468 actctx_init();
2469 load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
2470 if ((status = fixup_imports( wm, load_path )) != STATUS_SUCCESS) goto error;
2471 if ((status = alloc_process_tls()) != STATUS_SUCCESS) goto error;
2472 if ((status = alloc_thread_tls()) != STATUS_SUCCESS) goto error;
2473 if (nt->FileHeader.Characteristics & IMAGE_FILE_LARGE_ADDRESS_AWARE) VIRTUAL_UseLargeAddressSpace();
2474
2475 status = wine_call_on_stack( attach_process_dlls, wm, NtCurrentTeb()->Tib.StackBase );
2476 if (status != STATUS_SUCCESS) goto error;
2477
2478 virtual_clear_thread_stack();
2479 return;
2480
2481 error:
2482 ERR( "Main exe initialization for %s failed, status %x\n",
2483 debugstr_w(peb->ProcessParameters->ImagePathName.Buffer), status );
2484 NtTerminateProcess( GetCurrentProcess(), status );
2485 }
2486
2487
2488 /***********************************************************************
2489 * RtlImageDirectoryEntryToData (NTDLL.@)
2490 */
2491 PVOID WINAPI RtlImageDirectoryEntryToData( HMODULE module, BOOL image, WORD dir, ULONG *size )
2492 {
2493 const IMAGE_NT_HEADERS *nt;
2494 DWORD addr;
2495
2496 if ((ULONG_PTR)module & 1) /* mapped as data file */
2497 {
2498 module = (HMODULE)((ULONG_PTR)module & ~1);
2499 image = FALSE;
2500 }
2501 if (!(nt = RtlImageNtHeader( module ))) return NULL;
2502 if (dir >= nt->OptionalHeader.NumberOfRvaAndSizes) return NULL;
2503 if (!(addr = nt->OptionalHeader.DataDirectory[dir].VirtualAddress)) return NULL;
2504 *size = nt->OptionalHeader.DataDirectory[dir].Size;
2505 if (image || addr < nt->OptionalHeader.SizeOfHeaders) return (char *)module + addr;
2506
2507 /* not mapped as image, need to find the section containing the virtual address */
2508 return RtlImageRvaToVa( nt, module, addr, NULL );
2509 }
2510
2511
2512 /***********************************************************************
2513 * RtlImageRvaToSection (NTDLL.@)
2514 */
2515 PIMAGE_SECTION_HEADER WINAPI RtlImageRvaToSection( const IMAGE_NT_HEADERS *nt,
2516 HMODULE module, DWORD rva )
2517 {
2518 int i;
2519 const IMAGE_SECTION_HEADER *sec;
2520
2521 sec = (const IMAGE_SECTION_HEADER*)((const char*)&nt->OptionalHeader +
2522 nt->FileHeader.SizeOfOptionalHeader);
2523 for (i = 0; i < nt->FileHeader.NumberOfSections; i++, sec++)
2524 {
2525 if ((sec->VirtualAddress <= rva) && (sec->VirtualAddress + sec->SizeOfRawData > rva))
2526 return (PIMAGE_SECTION_HEADER)sec;
2527 }
2528 return NULL;
2529 }
2530
2531
2532 /***********************************************************************
2533 * RtlImageRvaToVa (NTDLL.@)
2534 */
2535 PVOID WINAPI RtlImageRvaToVa( const IMAGE_NT_HEADERS *nt, HMODULE module,
2536 DWORD rva, IMAGE_SECTION_HEADER **section )
2537 {
2538 IMAGE_SECTION_HEADER *sec;
2539
2540 if (section && *section) /* try this section first */
2541 {
2542 sec = *section;
2543 if ((sec->VirtualAddress <= rva) && (sec->VirtualAddress + sec->SizeOfRawData > rva))
2544 goto found;
2545 }
2546 if (!(sec = RtlImageRvaToSection( nt, module, rva ))) return NULL;
2547 found:
2548 if (section) *section = sec;
2549 return (char *)module + sec->PointerToRawData + (rva - sec->VirtualAddress);
2550 }
2551
2552
2553 /***********************************************************************
2554 * RtlPcToFileHeader (NTDLL.@)
2555 */
2556 PVOID WINAPI RtlPcToFileHeader( PVOID pc, PVOID *address )
2557 {
2558 LDR_MODULE *module;
2559 PVOID ret = NULL;
2560
2561 RtlEnterCriticalSection( &loader_section );
2562 if (!LdrFindEntryForAddress( pc, &module )) ret = module->BaseAddress;
2563 RtlLeaveCriticalSection( &loader_section );
2564 *address = ret;
2565 return ret;
2566 }
2567
2568
2569 /***********************************************************************
2570 * NtLoadDriver (NTDLL.@)
2571 * ZwLoadDriver (NTDLL.@)
2572 */
2573 NTSTATUS WINAPI NtLoadDriver( const UNICODE_STRING *DriverServiceName )
2574 {
2575 FIXME("(%p), stub!\n",DriverServiceName);
2576 return STATUS_NOT_IMPLEMENTED;
2577 }
2578
2579
2580 /***********************************************************************
2581 * NtUnloadDriver (NTDLL.@)
2582 * ZwUnloadDriver (NTDLL.@)
2583 */
2584 NTSTATUS WINAPI NtUnloadDriver( const UNICODE_STRING *DriverServiceName )
2585 {
2586 FIXME("(%p), stub!\n",DriverServiceName);
2587 return STATUS_NOT_IMPLEMENTED;
2588 }
2589
2590
2591 /******************************************************************
2592 * DllMain (NTDLL.@)
2593 */
2594 BOOL WINAPI DllMain( HINSTANCE inst, DWORD reason, LPVOID reserved )
2595 {
2596 if (reason == DLL_PROCESS_ATTACH) LdrDisableThreadCalloutsForDll( inst );
2597 return TRUE;
2598 }
2599
2600
2601 /******************************************************************
2602 * __wine_init_windows_dir (NTDLL.@)
2603 *
2604 * Windows and system dir initialization once kernel32 has been loaded.
2605 */
2606 void CDECL __wine_init_windows_dir( const WCHAR *windir, const WCHAR *sysdir )
2607 {
2608 PLIST_ENTRY mark, entry;
2609 LPWSTR buffer, p;
2610
2611 RtlCreateUnicodeString( &windows_dir, windir );
2612 RtlCreateUnicodeString( &system_dir, sysdir );
2613 strcpyW( user_shared_data->NtSystemRoot, windir );
2614
2615 /* prepend the system dir to the name of the already created modules */
2616 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
2617 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
2618 {
2619 LDR_MODULE *mod = CONTAINING_RECORD( entry, LDR_MODULE, InLoadOrderModuleList );
2620
2621 assert( mod->Flags & LDR_WINE_INTERNAL );
2622
2623 buffer = RtlAllocateHeap( GetProcessHeap(), 0,
2624 system_dir.Length + mod->FullDllName.Length + 2*sizeof(WCHAR) );
2625 if (!buffer) continue;
2626 strcpyW( buffer, system_dir.Buffer );
2627 p = buffer + strlenW( buffer );
2628 if (p > buffer && p[-1] != '\\') *p++ = '\\';
2629 strcpyW( p, mod->FullDllName.Buffer );
2630 RtlInitUnicodeString( &mod->FullDllName, buffer );
2631 RtlInitUnicodeString( &mod->BaseDllName, p );
2632 }
2633 }
2634
2635
2636 /***********************************************************************
2637 * __wine_process_init
2638 */
2639 void __wine_process_init(void)
2640 {
2641 static const WCHAR kernel32W[] = {'k','e','r','n','e','l','3','2','.','d','l','l',0};
2642
2643 WINE_MODREF *wm;
2644 NTSTATUS status;
2645 ANSI_STRING func_name;
2646 void (* DECLSPEC_NORETURN CDECL init_func)(void);
2647 extern mode_t FILE_umask;
2648
2649 main_exe_file = thread_init();
2650
2651 /* retrieve current umask */
2652 FILE_umask = umask(0777);
2653 umask( FILE_umask );
2654
2655 /* setup the load callback and create ntdll modref */
2656 wine_dll_set_callback( load_builtin_callback );
2657
2658 if ((status = load_builtin_dll( NULL, kernel32W, 0, 0, &wm )) != STATUS_SUCCESS)
2659 {
2660 MESSAGE( "wine: could not load kernel32.dll, status %x\n", status );
2661 exit(1);
2662 }
2663 RtlInitAnsiString( &func_name, "UnhandledExceptionFilter" );
2664 LdrGetProcedureAddress( wm->ldr.BaseAddress, &func_name, 0, (void **)&unhandled_exception_filter );
2665
2666 RtlInitAnsiString( &func_name, "__wine_kernel_init" );
2667 if ((status = LdrGetProcedureAddress( wm->ldr.BaseAddress, &func_name,
2668 0, (void **)&init_func )) != STATUS_SUCCESS)
2669 {
2670 MESSAGE( "wine: could not find __wine_kernel_init in kernel32.dll, status %x\n", status );
2671 exit(1);
2672 }
2673 init_func();
2674 }
useful hacks and other patches not (yet) suitable for mainline