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dinput: Ignore EV_MSC events instead of printing fixme.
[wine/multimedia.git] / dlls / ntdll / loader.c
blob19d484a51ed5b182289445c3d32ea7e38867451d
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 #define TLS_ALIGNMENT (2 * sizeof(void *))
101 #define TLS_ALIGN(size) (((size) + TLS_ALIGNMENT - 1) & ~(TLS_ALIGNMENT - 1))
102
103 static RTL_CRITICAL_SECTION loader_section;
104 static RTL_CRITICAL_SECTION_DEBUG critsect_debug =
105 {
106 0, 0, &loader_section,
107 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
108 0, 0, { (DWORD_PTR)(__FILE__ ": loader_section") }
109 };
110 static RTL_CRITICAL_SECTION loader_section = { &critsect_debug, -1, 0, 0, 0, 0 };
111
112 static WINE_MODREF *cached_modref;
113 static WINE_MODREF *current_modref;
114 static WINE_MODREF *last_failed_modref;
115
116 static NTSTATUS load_dll( LPCWSTR load_path, LPCWSTR libname, DWORD flags, WINE_MODREF** pwm );
117 static NTSTATUS process_attach( WINE_MODREF *wm, LPVOID lpReserved );
118 static FARPROC find_ordinal_export( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports,
119 DWORD exp_size, DWORD ordinal, LPCWSTR load_path );
120 static FARPROC find_named_export( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports,
121 DWORD exp_size, const char *name, int hint, LPCWSTR load_path );
122
123 /* convert PE image VirtualAddress to Real Address */
124 static inline void *get_rva( HMODULE module, DWORD va )
125 {
126 return (void *)((char *)module + va);
127 }
128
129 /* check whether the file name contains a path */
130 static inline int contains_path( LPCWSTR name )
131 {
132 return ((*name && (name[1] == ':')) || strchrW(name, '/') || strchrW(name, '\\'));
133 }
134
135 /* convert from straight ASCII to Unicode without depending on the current codepage */
136 static inline void ascii_to_unicode( WCHAR *dst, const char *src, size_t len )
137 {
138 while (len--) *dst++ = (unsigned char)*src++;
139 }
140
141
142 /*************************************************************************
143 * call_dll_entry_point
144 *
145 * Some brain-damaged dlls (ir32_32.dll for instance) modify ebx in
146 * their entry point, so we need a small asm wrapper.
147 */
148 #ifdef __i386__
149 extern BOOL call_dll_entry_point( DLLENTRYPROC proc, void *module, UINT reason, void *reserved );
150 __ASM_GLOBAL_FUNC(call_dll_entry_point,
151 "pushl %ebp\n\t"
152 __ASM_CFI(".cfi_adjust_cfa_offset 4\n\t")
153 __ASM_CFI(".cfi_rel_offset %ebp,0\n\t")
154 "movl %esp,%ebp\n\t"
155 __ASM_CFI(".cfi_def_cfa_register %ebp\n\t")
156 "pushl %ebx\n\t"
157 __ASM_CFI(".cfi_rel_offset %ebx,-4\n\t")
158 "subl $8,%esp\n\t"
159 "pushl 20(%ebp)\n\t"
160 "pushl 16(%ebp)\n\t"
161 "pushl 12(%ebp)\n\t"
162 "movl 8(%ebp),%eax\n\t"
163 "call *%eax\n\t"
164 "leal -4(%ebp),%esp\n\t"
165 "popl %ebx\n\t"
166 __ASM_CFI(".cfi_same_value %ebx\n\t")
167 "popl %ebp\n\t"
168 __ASM_CFI(".cfi_def_cfa %esp,4\n\t")
169 __ASM_CFI(".cfi_same_value %ebp\n\t")
170 "ret" )
171 #else /* __i386__ */
172 static inline BOOL call_dll_entry_point( DLLENTRYPROC proc, void *module,
173 UINT reason, void *reserved )
174 {
175 return proc( module, reason, reserved );
176 }
177 #endif /* __i386__ */
178
179
180 #if defined(__i386__) || defined(__x86_64__)
181 /*************************************************************************
182 * stub_entry_point
183 *
184 * Entry point for stub functions.
185 */
186 static void stub_entry_point( const char *dll, const char *name, void *ret_addr )
187 {
188 EXCEPTION_RECORD rec;
189
190 rec.ExceptionCode = EXCEPTION_WINE_STUB;
191 rec.ExceptionFlags = EH_NONCONTINUABLE;
192 rec.ExceptionRecord = NULL;
193 rec.ExceptionAddress = ret_addr;
194 rec.NumberParameters = 2;
195 rec.ExceptionInformation[0] = (ULONG_PTR)dll;
196 rec.ExceptionInformation[1] = (ULONG_PTR)name;
197 for (;;) RtlRaiseException( &rec );
198 }
199
200
201 #include "pshpack1.h"
202 #ifdef __i386__
203 struct stub
204 {
205 BYTE pushl1; /* pushl $name */
206 const char *name;
207 BYTE pushl2; /* pushl $dll */
208 const char *dll;
209 BYTE call; /* call stub_entry_point */
210 DWORD entry;
211 };
212 #else
213 struct stub
214 {
215 BYTE movq_rdi[2]; /* movq $dll,%rdi */
216 const char *dll;
217 BYTE movq_rsi[2]; /* movq $name,%rsi */
218 const char *name;
219 BYTE movq_rsp_rdx[4]; /* movq (%rsp),%rdx */
220 BYTE movq_rax[2]; /* movq $entry, %rax */
221 const void* entry;
222 BYTE jmpq_rax[2]; /* jmp %rax */
223 };
224 #endif
225 #include "poppack.h"
226
227 /*************************************************************************
228 * allocate_stub
229 *
230 * Allocate a stub entry point.
231 */
232 static ULONG_PTR allocate_stub( const char *dll, const char *name )
233 {
234 #define MAX_SIZE 65536
235 static struct stub *stubs;
236 static unsigned int nb_stubs;
237 struct stub *stub;
238
239 if (nb_stubs >= MAX_SIZE / sizeof(*stub)) return 0xdeadbeef;
240
241 if (!stubs)
242 {
243 SIZE_T size = MAX_SIZE;
244 if (NtAllocateVirtualMemory( NtCurrentProcess(), (void **)&stubs, 0, &size,
245 MEM_COMMIT, PAGE_EXECUTE_WRITECOPY ) != STATUS_SUCCESS)
246 return 0xdeadbeef;
247 }
248 stub = &stubs[nb_stubs++];
249 #ifdef __i386__
250 stub->pushl1 = 0x68; /* pushl $name */
251 stub->name = name;
252 stub->pushl2 = 0x68; /* pushl $dll */
253 stub->dll = dll;
254 stub->call = 0xe8; /* call stub_entry_point */
255 stub->entry = (BYTE *)stub_entry_point - (BYTE *)(&stub->entry + 1);
256 #else
257 stub->movq_rdi[0] = 0x48; /* movq $dll,%rdi */
258 stub->movq_rdi[1] = 0xbf;
259 stub->dll = dll;
260 stub->movq_rsi[0] = 0x48; /* movq $name,%rsi */
261 stub->movq_rsi[1] = 0xbe;
262 stub->name = name;
263 stub->movq_rsp_rdx[0] = 0x48; /* movq (%rsp),%rdx */
264 stub->movq_rsp_rdx[1] = 0x8b;
265 stub->movq_rsp_rdx[2] = 0x14;
266 stub->movq_rsp_rdx[3] = 0x24;
267 stub->movq_rax[0] = 0x48; /* movq $entry, %rax */
268 stub->movq_rax[1] = 0xb8;
269 stub->entry = stub_entry_point;
270 stub->jmpq_rax[0] = 0xff; /* jmp %rax */
271 stub->jmpq_rax[1] = 0xe0;
272 #endif
273 return (ULONG_PTR)stub;
274 }
275
276 #else /* __i386__ */
277 static inline ULONG_PTR allocate_stub( const char *dll, const char *name ) { return 0xdeadbeef; }
278 #endif /* __i386__ */
279
280
281 /*************************************************************************
282 * get_modref
283 *
284 * Looks for the referenced HMODULE in the current process
285 * The loader_section must be locked while calling this function.
286 */
287 static WINE_MODREF *get_modref( HMODULE hmod )
288 {
289 PLIST_ENTRY mark, entry;
290 PLDR_MODULE mod;
291
292 if (cached_modref && cached_modref->ldr.BaseAddress == hmod) return cached_modref;
293
294 mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
295 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
296 {
297 mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
298 if (mod->BaseAddress == hmod)
299 return cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
300 if (mod->BaseAddress > (void*)hmod) break;
301 }
302 return NULL;
303 }
304
305
306 /**********************************************************************
307 * find_basename_module
308 *
309 * Find a module from its base name.
310 * The loader_section must be locked while calling this function
311 */
312 static WINE_MODREF *find_basename_module( LPCWSTR name )
313 {
314 PLIST_ENTRY mark, entry;
315
316 if (cached_modref && !strcmpiW( name, cached_modref->ldr.BaseDllName.Buffer ))
317 return cached_modref;
318
319 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
320 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
321 {
322 LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
323 if (!strcmpiW( name, mod->BaseDllName.Buffer ))
324 {
325 cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
326 return cached_modref;
327 }
328 }
329 return NULL;
330 }
331
332
333 /**********************************************************************
334 * find_fullname_module
335 *
336 * Find a module from its full path name.
337 * The loader_section must be locked while calling this function
338 */
339 static WINE_MODREF *find_fullname_module( LPCWSTR name )
340 {
341 PLIST_ENTRY mark, entry;
342
343 if (cached_modref && !strcmpiW( name, cached_modref->ldr.FullDllName.Buffer ))
344 return cached_modref;
345
346 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
347 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
348 {
349 LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
350 if (!strcmpiW( name, mod->FullDllName.Buffer ))
351 {
352 cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
353 return cached_modref;
354 }
355 }
356 return NULL;
357 }
358
359
360 /*************************************************************************
361 * find_forwarded_export
362 *
363 * Find the final function pointer for a forwarded function.
364 * The loader_section must be locked while calling this function.
365 */
366 static FARPROC find_forwarded_export( HMODULE module, const char *forward, LPCWSTR load_path )
367 {
368 const IMAGE_EXPORT_DIRECTORY *exports;
369 DWORD exp_size;
370 WINE_MODREF *wm;
371 WCHAR mod_name[32];
372 const char *end = strrchr(forward, '.');
373 FARPROC proc = NULL;
374
375 if (!end) return NULL;
376 if ((end - forward) * sizeof(WCHAR) >= sizeof(mod_name)) return NULL;
377 ascii_to_unicode( mod_name, forward, end - forward );
378 mod_name[end - forward] = 0;
379 if (!strchrW( mod_name, '.' ))
380 {
381 if ((end - forward) * sizeof(WCHAR) >= sizeof(mod_name) - sizeof(dllW)) return NULL;
382 memcpy( mod_name + (end - forward), dllW, sizeof(dllW) );
383 }
384
385 if (!(wm = find_basename_module( mod_name )))
386 {
387 TRACE( "delay loading %s for '%s'\n", debugstr_w(mod_name), forward );
388 if (load_dll( load_path, mod_name, 0, &wm ) == STATUS_SUCCESS &&
389 !(wm->ldr.Flags & LDR_DONT_RESOLVE_REFS))
390 {
391 if (process_attach( wm, NULL ) != STATUS_SUCCESS)
392 {
393 LdrUnloadDll( wm->ldr.BaseAddress );
394 wm = NULL;
395 }
396 }
397
398 if (!wm)
399 {
400 ERR( "module not found for forward '%s' used by %s\n",
401 forward, debugstr_w(get_modref(module)->ldr.FullDllName.Buffer) );
402 return NULL;
403 }
404 }
405 if ((exports = RtlImageDirectoryEntryToData( wm->ldr.BaseAddress, TRUE,
406 IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size )))
407 {
408 const char *name = end + 1;
409 if (*name == '#') /* ordinal */
410 proc = find_ordinal_export( wm->ldr.BaseAddress, exports, exp_size, atoi(name+1), load_path );
411 else
412 proc = find_named_export( wm->ldr.BaseAddress, exports, exp_size, name, -1, load_path );
413 }
414
415 if (!proc)
416 {
417 ERR("function not found for forward '%s' used by %s."
418 " If you are using builtin %s, try using the native one instead.\n",
419 forward, debugstr_w(get_modref(module)->ldr.FullDllName.Buffer),
420 debugstr_w(get_modref(module)->ldr.BaseDllName.Buffer) );
421 }
422 return proc;
423 }
424
425
426 /*************************************************************************
427 * find_ordinal_export
428 *
429 * Find an exported function by ordinal.
430 * The exports base must have been subtracted from the ordinal already.
431 * The loader_section must be locked while calling this function.
432 */
433 static FARPROC find_ordinal_export( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports,
434 DWORD exp_size, DWORD ordinal, LPCWSTR load_path )
435 {
436 FARPROC proc;
437 const DWORD *functions = get_rva( module, exports->AddressOfFunctions );
438
439 if (ordinal >= exports->NumberOfFunctions)
440 {
441 TRACE(" ordinal %d out of range!\n", ordinal + exports->Base );
442 return NULL;
443 }
444 if (!functions[ordinal]) return NULL;
445
446 proc = get_rva( module, functions[ordinal] );
447
448 /* if the address falls into the export dir, it's a forward */
449 if (((const char *)proc >= (const char *)exports) &&
450 ((const char *)proc < (const char *)exports + exp_size))
451 return find_forwarded_export( module, (const char *)proc, load_path );
452
453 if (TRACE_ON(snoop))
454 {
455 const WCHAR *user = current_modref ? current_modref->ldr.BaseDllName.Buffer : NULL;
456 proc = SNOOP_GetProcAddress( module, exports, exp_size, proc, ordinal, user );
457 }
458 if (TRACE_ON(relay))
459 {
460 const WCHAR *user = current_modref ? current_modref->ldr.BaseDllName.Buffer : NULL;
461 proc = RELAY_GetProcAddress( module, exports, exp_size, proc, ordinal, user );
462 }
463 return proc;
464 }
465
466
467 /*************************************************************************
468 * find_named_export
469 *
470 * Find an exported function by name.
471 * The loader_section must be locked while calling this function.
472 */
473 static FARPROC find_named_export( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports,
474 DWORD exp_size, const char *name, int hint, LPCWSTR load_path )
475 {
476 const WORD *ordinals = get_rva( module, exports->AddressOfNameOrdinals );
477 const DWORD *names = get_rva( module, exports->AddressOfNames );
478 int min = 0, max = exports->NumberOfNames - 1;
479
480 /* first check the hint */
481 if (hint >= 0 && hint <= max)
482 {
483 char *ename = get_rva( module, names[hint] );
484 if (!strcmp( ename, name ))
485 return find_ordinal_export( module, exports, exp_size, ordinals[hint], load_path );
486 }
487
488 /* then do a binary search */
489 while (min <= max)
490 {
491 int res, pos = (min + max) / 2;
492 char *ename = get_rva( module, names[pos] );
493 if (!(res = strcmp( ename, name )))
494 return find_ordinal_export( module, exports, exp_size, ordinals[pos], load_path );
495 if (res > 0) max = pos - 1;
496 else min = pos + 1;
497 }
498 return NULL;
499
500 }
501
502
503 /*************************************************************************
504 * import_dll
505 *
506 * Import the dll specified by the given import descriptor.
507 * The loader_section must be locked while calling this function.
508 */
509 static WINE_MODREF *import_dll( HMODULE module, const IMAGE_IMPORT_DESCRIPTOR *descr, LPCWSTR load_path )
510 {
511 NTSTATUS status;
512 WINE_MODREF *wmImp;
513 HMODULE imp_mod;
514 const IMAGE_EXPORT_DIRECTORY *exports;
515 DWORD exp_size;
516 const IMAGE_THUNK_DATA *import_list;
517 IMAGE_THUNK_DATA *thunk_list;
518 WCHAR buffer[32];
519 const char *name = get_rva( module, descr->Name );
520 DWORD len = strlen(name);
521 PVOID protect_base;
522 SIZE_T protect_size = 0;
523 DWORD protect_old;
524
525 thunk_list = get_rva( module, (DWORD)descr->FirstThunk );
526 if (descr->u.OriginalFirstThunk)
527 import_list = get_rva( module, (DWORD)descr->u.OriginalFirstThunk );
528 else
529 import_list = thunk_list;
530
531 while (len && name[len-1] == ' ') len--; /* remove trailing spaces */
532
533 if (len * sizeof(WCHAR) < sizeof(buffer))
534 {
535 ascii_to_unicode( buffer, name, len );
536 buffer[len] = 0;
537 status = load_dll( load_path, buffer, 0, &wmImp );
538 }
539 else /* need to allocate a larger buffer */
540 {
541 WCHAR *ptr = RtlAllocateHeap( GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR) );
542 if (!ptr) return NULL;
543 ascii_to_unicode( ptr, name, len );
544 ptr[len] = 0;
545 status = load_dll( load_path, ptr, 0, &wmImp );
546 RtlFreeHeap( GetProcessHeap(), 0, ptr );
547 }
548
549 if (status)
550 {
551 if (status == STATUS_DLL_NOT_FOUND)
552 ERR("Library %s (which is needed by %s) not found\n",
553 name, debugstr_w(current_modref->ldr.FullDllName.Buffer));
554 else
555 ERR("Loading library %s (which is needed by %s) failed (error %x).\n",
556 name, debugstr_w(current_modref->ldr.FullDllName.Buffer), status);
557 return NULL;
558 }
559
560 /* unprotect the import address table since it can be located in
561 * readonly section */
562 while (import_list[protect_size].u1.Ordinal) protect_size++;
563 protect_base = thunk_list;
564 protect_size *= sizeof(*thunk_list);
565 NtProtectVirtualMemory( NtCurrentProcess(), &protect_base,
566 &protect_size, PAGE_WRITECOPY, &protect_old );
567
568 imp_mod = wmImp->ldr.BaseAddress;
569 exports = RtlImageDirectoryEntryToData( imp_mod, TRUE, IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size );
570
571 if (!exports)
572 {
573 /* set all imported function to deadbeef */
574 while (import_list->u1.Ordinal)
575 {
576 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal))
577 {
578 int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
579 WARN("No implementation for %s.%d", name, ordinal );
580 thunk_list->u1.Function = allocate_stub( name, IntToPtr(ordinal) );
581 }
582 else
583 {
584 IMAGE_IMPORT_BY_NAME *pe_name = get_rva( module, (DWORD)import_list->u1.AddressOfData );
585 WARN("No implementation for %s.%s", name, pe_name->Name );
586 thunk_list->u1.Function = allocate_stub( name, (const char*)pe_name->Name );
587 }
588 WARN(" imported from %s, allocating stub %p\n",
589 debugstr_w(current_modref->ldr.FullDllName.Buffer),
590 (void *)thunk_list->u1.Function );
591 import_list++;
592 thunk_list++;
593 }
594 goto done;
595 }
596
597 while (import_list->u1.Ordinal)
598 {
599 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal))
600 {
601 int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
602
603 thunk_list->u1.Function = (ULONG_PTR)find_ordinal_export( imp_mod, exports, exp_size,
604 ordinal - exports->Base, load_path );
605 if (!thunk_list->u1.Function)
606 {
607 thunk_list->u1.Function = allocate_stub( name, IntToPtr(ordinal) );
608 WARN("No implementation for %s.%d imported from %s, setting to %p\n",
609 name, ordinal, debugstr_w(current_modref->ldr.FullDllName.Buffer),
610 (void *)thunk_list->u1.Function );
611 }
612 TRACE_(imports)("--- Ordinal %s.%d = %p\n", name, ordinal, (void *)thunk_list->u1.Function );
613 }
614 else /* import by name */
615 {
616 IMAGE_IMPORT_BY_NAME *pe_name;
617 pe_name = get_rva( module, (DWORD)import_list->u1.AddressOfData );
618 thunk_list->u1.Function = (ULONG_PTR)find_named_export( imp_mod, exports, exp_size,
619 (const char*)pe_name->Name,
620 pe_name->Hint, load_path );
621 if (!thunk_list->u1.Function)
622 {
623 thunk_list->u1.Function = allocate_stub( name, (const char*)pe_name->Name );
624 WARN("No implementation for %s.%s imported from %s, setting to %p\n",
625 name, pe_name->Name, debugstr_w(current_modref->ldr.FullDllName.Buffer),
626 (void *)thunk_list->u1.Function );
627 }
628 TRACE_(imports)("--- %s %s.%d = %p\n",
629 pe_name->Name, name, pe_name->Hint, (void *)thunk_list->u1.Function);
630 }
631 import_list++;
632 thunk_list++;
633 }
634
635 done:
636 /* restore old protection of the import address table */
637 NtProtectVirtualMemory( NtCurrentProcess(), &protect_base, &protect_size, protect_old, NULL );
638 return wmImp;
639 }
640
641
642 /***********************************************************************
643 * create_module_activation_context
644 */
645 static NTSTATUS create_module_activation_context( LDR_MODULE *module )
646 {
647 NTSTATUS status;
648 LDR_RESOURCE_INFO info;
649 const IMAGE_RESOURCE_DATA_ENTRY *entry;
650
651 info.Type = RT_MANIFEST;
652 info.Name = ISOLATIONAWARE_MANIFEST_RESOURCE_ID;
653 info.Language = 0;
654 if (!(status = LdrFindResource_U( module->BaseAddress, &info, 3, &entry )))
655 {
656 ACTCTXW ctx;
657 ctx.cbSize = sizeof(ctx);
658 ctx.lpSource = NULL;
659 ctx.dwFlags = ACTCTX_FLAG_RESOURCE_NAME_VALID | ACTCTX_FLAG_HMODULE_VALID;
660 ctx.hModule = module->BaseAddress;
661 ctx.lpResourceName = (LPCWSTR)ISOLATIONAWARE_MANIFEST_RESOURCE_ID;
662 status = RtlCreateActivationContext( &module->ActivationContext, &ctx );
663 }
664 return status;
665 }
666
667
668 /****************************************************************
669 * fixup_imports
670 *
671 * Fixup all imports of a given module.
672 * The loader_section must be locked while calling this function.
673 */
674 static NTSTATUS fixup_imports( WINE_MODREF *wm, LPCWSTR load_path )
675 {
676 int i, nb_imports;
677 const IMAGE_IMPORT_DESCRIPTOR *imports;
678 WINE_MODREF *prev;
679 DWORD size;
680 NTSTATUS status;
681 ULONG_PTR cookie;
682
683 if (!(wm->ldr.Flags & LDR_DONT_RESOLVE_REFS)) return STATUS_SUCCESS; /* already done */
684 wm->ldr.Flags &= ~LDR_DONT_RESOLVE_REFS;
685
686 if (!(imports = RtlImageDirectoryEntryToData( wm->ldr.BaseAddress, TRUE,
687 IMAGE_DIRECTORY_ENTRY_IMPORT, &size )))
688 return STATUS_SUCCESS;
689
690 nb_imports = 0;
691 while (imports[nb_imports].Name && imports[nb_imports].FirstThunk) nb_imports++;
692
693 if (!nb_imports) return STATUS_SUCCESS; /* no imports */
694
695 if (!create_module_activation_context( &wm->ldr ))
696 RtlActivateActivationContext( 0, wm->ldr.ActivationContext, &cookie );
697
698 /* Allocate module dependency list */
699 wm->nDeps = nb_imports;
700 wm->deps = RtlAllocateHeap( GetProcessHeap(), 0, nb_imports*sizeof(WINE_MODREF *) );
701
702 /* load the imported modules. They are automatically
703 * added to the modref list of the process.
704 */
705 prev = current_modref;
706 current_modref = wm;
707 status = STATUS_SUCCESS;
708 for (i = 0; i < nb_imports; i++)
709 {
710 if (!(wm->deps[i] = import_dll( wm->ldr.BaseAddress, &imports[i], load_path )))
711 status = STATUS_DLL_NOT_FOUND;
712 }
713 current_modref = prev;
714 if (wm->ldr.ActivationContext) RtlDeactivateActivationContext( 0, cookie );
715 return status;
716 }
717
718
719 /*************************************************************************
720 * is_dll_native_subsystem
721 *
722 * Check if dll is a proper native driver.
723 * Some dlls (corpol.dll from IE6 for instance) are incorrectly marked as native
724 * while being perfectly normal DLLs. This heuristic should catch such breakages.
725 */
726 static BOOL is_dll_native_subsystem( HMODULE module, const IMAGE_NT_HEADERS *nt, LPCWSTR filename )
727 {
728 static const WCHAR ntdllW[] = {'n','t','d','l','l','.','d','l','l',0};
729 static const WCHAR kernel32W[] = {'k','e','r','n','e','l','3','2','.','d','l','l',0};
730 const IMAGE_IMPORT_DESCRIPTOR *imports;
731 DWORD i, size;
732 WCHAR buffer[16];
733
734 if (nt->OptionalHeader.Subsystem != IMAGE_SUBSYSTEM_NATIVE) return FALSE;
735 if (nt->OptionalHeader.SectionAlignment < getpagesize()) return TRUE;
736
737 if ((imports = RtlImageDirectoryEntryToData( module, TRUE,
738 IMAGE_DIRECTORY_ENTRY_IMPORT, &size )))
739 {
740 for (i = 0; imports[i].Name; i++)
741 {
742 const char *name = get_rva( module, imports[i].Name );
743 DWORD len = strlen(name);
744 if (len * sizeof(WCHAR) >= sizeof(buffer)) continue;
745 ascii_to_unicode( buffer, name, len + 1 );
746 if (!strcmpiW( buffer, ntdllW ) || !strcmpiW( buffer, kernel32W ))
747 {
748 TRACE( "%s imports %s, assuming not native\n", debugstr_w(filename), debugstr_w(buffer) );
749 return FALSE;
750 }
751 }
752 }
753 return TRUE;
754 }
755
756
757 /*************************************************************************
758 * alloc_module
759 *
760 * Allocate a WINE_MODREF structure and add it to the process list
761 * The loader_section must be locked while calling this function.
762 */
763 static WINE_MODREF *alloc_module( HMODULE hModule, LPCWSTR filename )
764 {
765 WINE_MODREF *wm;
766 const WCHAR *p;
767 const IMAGE_NT_HEADERS *nt = RtlImageNtHeader(hModule);
768 PLIST_ENTRY entry, mark;
769
770 if (!(wm = RtlAllocateHeap( GetProcessHeap(), 0, sizeof(*wm) ))) return NULL;
771
772 wm->nDeps = 0;
773 wm->deps = NULL;
774
775 wm->ldr.BaseAddress = hModule;
776 wm->ldr.EntryPoint = NULL;
777 wm->ldr.SizeOfImage = nt->OptionalHeader.SizeOfImage;
778 wm->ldr.Flags = LDR_DONT_RESOLVE_REFS;
779 wm->ldr.LoadCount = 1;
780 wm->ldr.TlsIndex = -1;
781 wm->ldr.SectionHandle = NULL;
782 wm->ldr.CheckSum = 0;
783 wm->ldr.TimeDateStamp = 0;
784 wm->ldr.ActivationContext = 0;
785
786 RtlCreateUnicodeString( &wm->ldr.FullDllName, filename );
787 if ((p = strrchrW( wm->ldr.FullDllName.Buffer, '\\' ))) p++;
788 else p = wm->ldr.FullDllName.Buffer;
789 RtlInitUnicodeString( &wm->ldr.BaseDllName, p );
790
791 if ((nt->FileHeader.Characteristics & IMAGE_FILE_DLL) && !is_dll_native_subsystem( hModule, nt, p ))
792 {
793 wm->ldr.Flags |= LDR_IMAGE_IS_DLL;
794 if (nt->OptionalHeader.AddressOfEntryPoint)
795 wm->ldr.EntryPoint = (char *)hModule + nt->OptionalHeader.AddressOfEntryPoint;
796 }
797
798 InsertTailList(&NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList,
799 &wm->ldr.InLoadOrderModuleList);
800
801 /* insert module in MemoryList, sorted in increasing base addresses */
802 mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
803 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
804 {
805 if (CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList)->BaseAddress > wm->ldr.BaseAddress)
806 break;
807 }
808 entry->Blink->Flink = &wm->ldr.InMemoryOrderModuleList;
809 wm->ldr.InMemoryOrderModuleList.Blink = entry->Blink;
810 wm->ldr.InMemoryOrderModuleList.Flink = entry;
811 entry->Blink = &wm->ldr.InMemoryOrderModuleList;
812
813 /* wait until init is called for inserting into this list */
814 wm->ldr.InInitializationOrderModuleList.Flink = NULL;
815 wm->ldr.InInitializationOrderModuleList.Blink = NULL;
816
817 if (!(nt->OptionalHeader.DllCharacteristics & IMAGE_DLLCHARACTERISTICS_NX_COMPAT))
818 {
819 ULONG flags = MEM_EXECUTE_OPTION_ENABLE;
820 WARN( "disabling no-exec because of %s\n", debugstr_w(wm->ldr.BaseDllName.Buffer) );
821 NtSetInformationProcess( GetCurrentProcess(), ProcessExecuteFlags, &flags, sizeof(flags) );
822 }
823 return wm;
824 }
825
826
827 /*************************************************************************
828 * alloc_process_tls
829 *
830 * Allocate the process-wide structure for module TLS storage.
831 */
832 static NTSTATUS alloc_process_tls(void)
833 {
834 PLIST_ENTRY mark, entry;
835 PLDR_MODULE mod;
836 const IMAGE_TLS_DIRECTORY *dir;
837 ULONG size, i;
838
839 mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
840 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
841 {
842 mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
843 if (!(dir = RtlImageDirectoryEntryToData( mod->BaseAddress, TRUE,
844 IMAGE_DIRECTORY_ENTRY_TLS, &size )))
845 continue;
846 size = (dir->EndAddressOfRawData - dir->StartAddressOfRawData) + dir->SizeOfZeroFill;
847 if (!size && !dir->AddressOfCallBacks) continue;
848 tls_total_size += TLS_ALIGN(size);
849 tls_module_count++;
850 }
851 if (!tls_module_count) return STATUS_SUCCESS;
852
853 TRACE( "count %u size %u\n", tls_module_count, tls_total_size );
854
855 tls_dirs = RtlAllocateHeap( GetProcessHeap(), 0, tls_module_count * sizeof(*tls_dirs) );
856 if (!tls_dirs) return STATUS_NO_MEMORY;
857
858 for (i = 0, entry = mark->Flink; entry != mark; entry = entry->Flink)
859 {
860 mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
861 if (!(dir = RtlImageDirectoryEntryToData( mod->BaseAddress, TRUE,
862 IMAGE_DIRECTORY_ENTRY_TLS, &size )))
863 continue;
864 tls_dirs[i] = dir;
865 *(DWORD *)dir->AddressOfIndex = i;
866 mod->TlsIndex = i;
867 mod->LoadCount = -1; /* can't unload it */
868 i++;
869 }
870 return STATUS_SUCCESS;
871 }
872
873
874 /*************************************************************************
875 * alloc_thread_tls
876 *
877 * Allocate the per-thread structure for module TLS storage.
878 */
879 static NTSTATUS alloc_thread_tls(void)
880 {
881 void **pointers;
882 char *data;
883 UINT i, size;
884
885 if (!tls_module_count) return STATUS_SUCCESS;
886
887 size = TLS_ALIGN( tls_module_count * sizeof(*pointers) );
888 if (!(pointers = RtlAllocateHeap( GetProcessHeap(), 0, size + tls_total_size )))
889 return STATUS_NO_MEMORY;
890 data = (char *)pointers + size;
891
892 for (i = 0; i < tls_module_count; i++)
893 {
894 const IMAGE_TLS_DIRECTORY *dir = tls_dirs[i];
895 size = dir->EndAddressOfRawData - dir->StartAddressOfRawData;
896
897 TRACE( "thread %04x idx %d: %d/%d bytes from %p to %p\n",
898 GetCurrentThreadId(), i, size, dir->SizeOfZeroFill,
899 (void *)dir->StartAddressOfRawData, data );
900
901 pointers[i] = data;
902 memcpy( data, (void *)dir->StartAddressOfRawData, size );
903 memset( data + size, 0, dir->SizeOfZeroFill );
904 data += TLS_ALIGN( size + dir->SizeOfZeroFill );
905 }
906 NtCurrentTeb()->ThreadLocalStoragePointer = pointers;
907 return STATUS_SUCCESS;
908 }
909
910
911 /*************************************************************************
912 * call_tls_callbacks
913 */
914 static void call_tls_callbacks( HMODULE module, UINT reason )
915 {
916 const IMAGE_TLS_DIRECTORY *dir;
917 const PIMAGE_TLS_CALLBACK *callback;
918 ULONG dirsize;
919
920 dir = RtlImageDirectoryEntryToData( module, TRUE, IMAGE_DIRECTORY_ENTRY_TLS, &dirsize );
921 if (!dir || !dir->AddressOfCallBacks) return;
922
923 for (callback = (const PIMAGE_TLS_CALLBACK *)dir->AddressOfCallBacks; *callback; callback++)
924 {
925 if (TRACE_ON(relay))
926 DPRINTF("%04x:Call TLS callback (proc=%p,module=%p,reason=%s,reserved=0)\n",
927 GetCurrentThreadId(), *callback, module, reason_names[reason] );
928 __TRY
929 {
930 (*callback)( module, reason, NULL );
931 }
932 __EXCEPT_ALL
933 {
934 if (TRACE_ON(relay))
935 DPRINTF("%04x:exception in TLS callback (proc=%p,module=%p,reason=%s,reserved=0)\n",
936 GetCurrentThreadId(), callback, module, reason_names[reason] );
937 return;
938 }
939 __ENDTRY
940 if (TRACE_ON(relay))
941 DPRINTF("%04x:Ret TLS callback (proc=%p,module=%p,reason=%s,reserved=0)\n",
942 GetCurrentThreadId(), *callback, module, reason_names[reason] );
943 }
944 }
945
946
947 /*************************************************************************
948 * MODULE_InitDLL
949 */
950 static NTSTATUS MODULE_InitDLL( WINE_MODREF *wm, UINT reason, LPVOID lpReserved )
951 {
952 WCHAR mod_name[32];
953 NTSTATUS status = STATUS_SUCCESS;
954 DLLENTRYPROC entry = wm->ldr.EntryPoint;
955 void *module = wm->ldr.BaseAddress;
956 BOOL retv = TRUE;
957
958 /* Skip calls for modules loaded with special load flags */
959
960 if (wm->ldr.Flags & LDR_DONT_RESOLVE_REFS) return STATUS_SUCCESS;
961 if (wm->ldr.TlsIndex != -1) call_tls_callbacks( wm->ldr.BaseAddress, reason );
962 if (!entry) return STATUS_SUCCESS;
963
964 if (TRACE_ON(relay))
965 {
966 size_t len = min( wm->ldr.BaseDllName.Length, sizeof(mod_name)-sizeof(WCHAR) );
967 memcpy( mod_name, wm->ldr.BaseDllName.Buffer, len );
968 mod_name[len / sizeof(WCHAR)] = 0;
969 DPRINTF("%04x:Call PE DLL (proc=%p,module=%p %s,reason=%s,res=%p)\n",
970 GetCurrentThreadId(), entry, module, debugstr_w(mod_name),
971 reason_names[reason], lpReserved );
972 }
973 else TRACE("(%p %s,%s,%p) - CALL\n", module, debugstr_w(wm->ldr.BaseDllName.Buffer),
974 reason_names[reason], lpReserved );
975
976 __TRY
977 {
978 retv = call_dll_entry_point( entry, module, reason, lpReserved );
979 if (!retv)
980 status = STATUS_DLL_INIT_FAILED;
981 }
982 __EXCEPT_ALL
983 {
984 if (TRACE_ON(relay))
985 DPRINTF("%04x:exception in PE entry point (proc=%p,module=%p,reason=%s,res=%p)\n",
986 GetCurrentThreadId(), entry, module, reason_names[reason], lpReserved );
987 status = GetExceptionCode();
988 }
989 __ENDTRY
990
991 /* The state of the module list may have changed due to the call
992 to the dll. We cannot assume that this module has not been
993 deleted. */
994 if (TRACE_ON(relay))
995 DPRINTF("%04x:Ret PE DLL (proc=%p,module=%p %s,reason=%s,res=%p) retval=%x\n",
996 GetCurrentThreadId(), entry, module, debugstr_w(mod_name),
997 reason_names[reason], lpReserved, retv );
998 else TRACE("(%p,%s,%p) - RETURN %d\n", module, reason_names[reason], lpReserved, retv );
999
1000 return status;
1001 }
1002
1003
1004 /*************************************************************************
1005 * process_attach
1006 *
1007 * Send the process attach notification to all DLLs the given module
1008 * depends on (recursively). This is somewhat complicated due to the fact that
1009 *
1010 * - we have to respect the module dependencies, i.e. modules implicitly
1011 * referenced by another module have to be initialized before the module
1012 * itself can be initialized
1013 *
1014 * - the initialization routine of a DLL can itself call LoadLibrary,
1015 * thereby introducing a whole new set of dependencies (even involving
1016 * the 'old' modules) at any time during the whole process
1017 *
1018 * (Note that this routine can be recursively entered not only directly
1019 * from itself, but also via LoadLibrary from one of the called initialization
1020 * routines.)
1021 *
1022 * Furthermore, we need to rearrange the main WINE_MODREF list to allow
1023 * the process *detach* notifications to be sent in the correct order.
1024 * This must not only take into account module dependencies, but also
1025 * 'hidden' dependencies created by modules calling LoadLibrary in their
1026 * attach notification routine.
1027 *
1028 * The strategy is rather simple: we move a WINE_MODREF to the head of the
1029 * list after the attach notification has returned. This implies that the
1030 * detach notifications are called in the reverse of the sequence the attach
1031 * notifications *returned*.
1032 *
1033 * The loader_section must be locked while calling this function.
1034 */
1035 static NTSTATUS process_attach( WINE_MODREF *wm, LPVOID lpReserved )
1036 {
1037 NTSTATUS status = STATUS_SUCCESS;
1038 ULONG_PTR cookie;
1039 int i;
1040
1041 if (process_detaching) return status;
1042
1043 /* prevent infinite recursion in case of cyclical dependencies */
1044 if ( ( wm->ldr.Flags & LDR_LOAD_IN_PROGRESS )
1045 || ( wm->ldr.Flags & LDR_PROCESS_ATTACHED ) )
1046 return status;
1047
1048 TRACE("(%s,%p) - START\n", debugstr_w(wm->ldr.BaseDllName.Buffer), lpReserved );
1049
1050 /* Tag current MODREF to prevent recursive loop */
1051 wm->ldr.Flags |= LDR_LOAD_IN_PROGRESS;
1052 if (lpReserved) wm->ldr.LoadCount = -1; /* pin it if imported by the main exe */
1053 if (wm->ldr.ActivationContext) RtlActivateActivationContext( 0, wm->ldr.ActivationContext, &cookie );
1054
1055 /* Recursively attach all DLLs this one depends on */
1056 for ( i = 0; i < wm->nDeps; i++ )
1057 {
1058 if (!wm->deps[i]) continue;
1059 if ((status = process_attach( wm->deps[i], lpReserved )) != STATUS_SUCCESS) break;
1060 }
1061
1062 /* Call DLL entry point */
1063 if (status == STATUS_SUCCESS)
1064 {
1065 WINE_MODREF *prev = current_modref;
1066 current_modref = wm;
1067 status = MODULE_InitDLL( wm, DLL_PROCESS_ATTACH, lpReserved );
1068 if (status == STATUS_SUCCESS)
1069 wm->ldr.Flags |= LDR_PROCESS_ATTACHED;
1070 else
1071 {
1072 MODULE_InitDLL( wm, DLL_PROCESS_DETACH, lpReserved );
1073 /* point to the name so LdrInitializeThunk can print it */
1074 last_failed_modref = wm;
1075 WARN("Initialization of %s failed\n", debugstr_w(wm->ldr.BaseDllName.Buffer));
1076 }
1077 current_modref = prev;
1078 }
1079
1080 if (!wm->ldr.InInitializationOrderModuleList.Flink)
1081 InsertTailList(&NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList,
1082 &wm->ldr.InInitializationOrderModuleList);
1083
1084 if (wm->ldr.ActivationContext) RtlDeactivateActivationContext( 0, cookie );
1085 /* Remove recursion flag */
1086 wm->ldr.Flags &= ~LDR_LOAD_IN_PROGRESS;
1087
1088 TRACE("(%s,%p) - END\n", debugstr_w(wm->ldr.BaseDllName.Buffer), lpReserved );
1089 return status;
1090 }
1091
1092
1093 /**********************************************************************
1094 * attach_implicitly_loaded_dlls
1095 *
1096 * Attach to the (builtin) dlls that have been implicitly loaded because
1097 * of a dependency at the Unix level, but not imported at the Win32 level.
1098 */
1099 static void attach_implicitly_loaded_dlls( LPVOID reserved )
1100 {
1101 for (;;)
1102 {
1103 PLIST_ENTRY mark, entry;
1104
1105 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
1106 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1107 {
1108 LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
1109
1110 if (mod->Flags & (LDR_LOAD_IN_PROGRESS | LDR_PROCESS_ATTACHED)) continue;
1111 TRACE( "found implicitly loaded %s, attaching to it\n",
1112 debugstr_w(mod->BaseDllName.Buffer));
1113 process_attach( CONTAINING_RECORD(mod, WINE_MODREF, ldr), reserved );
1114 break; /* restart the search from the start */
1115 }
1116 if (entry == mark) break; /* nothing found */
1117 }
1118 }
1119
1120
1121 /*************************************************************************
1122 * process_detach
1123 *
1124 * Send DLL process detach notifications. See the comment about calling
1125 * sequence at process_attach. Unless the bForceDetach flag
1126 * is set, only DLLs with zero refcount are notified.
1127 */
1128 static void process_detach( BOOL bForceDetach, LPVOID lpReserved )
1129 {
1130 PLIST_ENTRY mark, entry;
1131 PLDR_MODULE mod;
1132
1133 RtlEnterCriticalSection( &loader_section );
1134 if (bForceDetach) process_detaching = 1;
1135 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
1136 do
1137 {
1138 for (entry = mark->Blink; entry != mark; entry = entry->Blink)
1139 {
1140 mod = CONTAINING_RECORD(entry, LDR_MODULE,
1141 InInitializationOrderModuleList);
1142 /* Check whether to detach this DLL */
1143 if ( !(mod->Flags & LDR_PROCESS_ATTACHED) )
1144 continue;
1145 if ( mod->LoadCount && !bForceDetach )
1146 continue;
1147
1148 /* Call detach notification */
1149 mod->Flags &= ~LDR_PROCESS_ATTACHED;
1150 MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr),
1151 DLL_PROCESS_DETACH, lpReserved );
1152
1153 /* Restart at head of WINE_MODREF list, as entries might have
1154 been added and/or removed while performing the call ... */
1155 break;
1156 }
1157 } while (entry != mark);
1158
1159 RtlLeaveCriticalSection( &loader_section );
1160 }
1161
1162 /*************************************************************************
1163 * MODULE_DllThreadAttach
1164 *
1165 * Send DLL thread attach notifications. These are sent in the
1166 * reverse sequence of process detach notification.
1167 *
1168 */
1169 NTSTATUS MODULE_DllThreadAttach( LPVOID lpReserved )
1170 {
1171 PLIST_ENTRY mark, entry;
1172 PLDR_MODULE mod;
1173 NTSTATUS status;
1174
1175 /* don't do any attach calls if process is exiting */
1176 if (process_detaching) return STATUS_SUCCESS;
1177 /* FIXME: there is still a race here */
1178
1179 RtlEnterCriticalSection( &loader_section );
1180
1181 if ((status = alloc_thread_tls()) != STATUS_SUCCESS) goto done;
1182
1183 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
1184 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1185 {
1186 mod = CONTAINING_RECORD(entry, LDR_MODULE,
1187 InInitializationOrderModuleList);
1188 if ( !(mod->Flags & LDR_PROCESS_ATTACHED) )
1189 continue;
1190 if ( mod->Flags & LDR_NO_DLL_CALLS )
1191 continue;
1192
1193 MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr),
1194 DLL_THREAD_ATTACH, lpReserved );
1195 }
1196
1197 done:
1198 RtlLeaveCriticalSection( &loader_section );
1199 return status;
1200 }
1201
1202 /******************************************************************
1203 * LdrDisableThreadCalloutsForDll (NTDLL.@)
1204 *
1205 */
1206 NTSTATUS WINAPI LdrDisableThreadCalloutsForDll(HMODULE hModule)
1207 {
1208 WINE_MODREF *wm;
1209 NTSTATUS ret = STATUS_SUCCESS;
1210
1211 RtlEnterCriticalSection( &loader_section );
1212
1213 wm = get_modref( hModule );
1214 if (!wm || wm->ldr.TlsIndex != -1)
1215 ret = STATUS_DLL_NOT_FOUND;
1216 else
1217 wm->ldr.Flags |= LDR_NO_DLL_CALLS;
1218
1219 RtlLeaveCriticalSection( &loader_section );
1220
1221 return ret;
1222 }
1223
1224 /******************************************************************
1225 * LdrFindEntryForAddress (NTDLL.@)
1226 *
1227 * The loader_section must be locked while calling this function
1228 */
1229 NTSTATUS WINAPI LdrFindEntryForAddress(const void* addr, PLDR_MODULE* pmod)
1230 {
1231 PLIST_ENTRY mark, entry;
1232 PLDR_MODULE mod;
1233
1234 mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
1235 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1236 {
1237 mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
1238 if (mod->BaseAddress <= addr &&
1239 (const char *)addr < (char*)mod->BaseAddress + mod->SizeOfImage)
1240 {
1241 *pmod = mod;
1242 return STATUS_SUCCESS;
1243 }
1244 if (mod->BaseAddress > addr) break;
1245 }
1246 return STATUS_NO_MORE_ENTRIES;
1247 }
1248
1249 /******************************************************************
1250 * LdrLockLoaderLock (NTDLL.@)
1251 *
1252 * Note: flags are not implemented.
1253 * Flag 0x01 is used to raise exceptions on errors.
1254 * Flag 0x02 is used to avoid waiting on the section (does RtlTryEnterCriticalSection instead).
1255 */
1256 NTSTATUS WINAPI LdrLockLoaderLock( ULONG flags, ULONG *result, ULONG *magic )
1257 {
1258 if (flags) FIXME( "flags %x not supported\n", flags );
1259
1260 if (result) *result = 1;
1261 if (!magic) return STATUS_INVALID_PARAMETER_3;
1262 RtlEnterCriticalSection( &loader_section );
1263 *magic = GetCurrentThreadId();
1264 return STATUS_SUCCESS;
1265 }
1266
1267
1268 /******************************************************************
1269 * LdrUnlockLoaderUnlock (NTDLL.@)
1270 */
1271 NTSTATUS WINAPI LdrUnlockLoaderLock( ULONG flags, ULONG magic )
1272 {
1273 if (magic)
1274 {
1275 if (magic != GetCurrentThreadId()) return STATUS_INVALID_PARAMETER_2;
1276 RtlLeaveCriticalSection( &loader_section );
1277 }
1278 return STATUS_SUCCESS;
1279 }
1280
1281
1282 /******************************************************************
1283 * LdrGetProcedureAddress (NTDLL.@)
1284 */
1285 NTSTATUS WINAPI LdrGetProcedureAddress(HMODULE module, const ANSI_STRING *name,
1286 ULONG ord, PVOID *address)
1287 {
1288 IMAGE_EXPORT_DIRECTORY *exports;
1289 DWORD exp_size;
1290 NTSTATUS ret = STATUS_PROCEDURE_NOT_FOUND;
1291
1292 RtlEnterCriticalSection( &loader_section );
1293
1294 /* check if the module itself is invalid to return the proper error */
1295 if (!get_modref( module )) ret = STATUS_DLL_NOT_FOUND;
1296 else if ((exports = RtlImageDirectoryEntryToData( module, TRUE,
1297 IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size )))
1298 {
1299 LPCWSTR load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
1300 void *proc = name ? find_named_export( module, exports, exp_size, name->Buffer, -1, load_path )
1301 : find_ordinal_export( module, exports, exp_size, ord - exports->Base, load_path );
1302 if (proc)
1303 {
1304 *address = proc;
1305 ret = STATUS_SUCCESS;
1306 }
1307 }
1308
1309 RtlLeaveCriticalSection( &loader_section );
1310 return ret;
1311 }
1312
1313
1314 /***********************************************************************
1315 * is_fake_dll
1316 *
1317 * Check if a loaded native dll is a Wine fake dll.
1318 */
1319 static BOOL is_fake_dll( HANDLE handle )
1320 {
1321 static const char fakedll_signature[] = "Wine placeholder DLL";
1322 char buffer[sizeof(IMAGE_DOS_HEADER) + sizeof(fakedll_signature)];
1323 const IMAGE_DOS_HEADER *dos = (const IMAGE_DOS_HEADER *)buffer;
1324 IO_STATUS_BLOCK io;
1325 LARGE_INTEGER offset;
1326
1327 offset.QuadPart = 0;
1328 if (NtReadFile( handle, 0, NULL, 0, &io, buffer, sizeof(buffer), &offset, NULL )) return FALSE;
1329 if (io.Information < sizeof(buffer)) return FALSE;
1330 if (dos->e_magic != IMAGE_DOS_SIGNATURE) return FALSE;
1331 if (dos->e_lfanew >= sizeof(*dos) + sizeof(fakedll_signature) &&
1332 !memcmp( dos + 1, fakedll_signature, sizeof(fakedll_signature) )) return TRUE;
1333 return FALSE;
1334 }
1335
1336
1337 /***********************************************************************
1338 * get_builtin_fullname
1339 *
1340 * Build the full pathname for a builtin dll.
1341 */
1342 static WCHAR *get_builtin_fullname( const WCHAR *path, const char *filename )
1343 {
1344 static const WCHAR soW[] = {'.','s','o',0};
1345 WCHAR *p, *fullname;
1346 size_t i, len = strlen(filename);
1347
1348 /* check if path can correspond to the dll we have */
1349 if (path && (p = strrchrW( path, '\\' )))
1350 {
1351 p++;
1352 for (i = 0; i < len; i++)
1353 if (tolowerW(p[i]) != tolowerW( (WCHAR)filename[i]) ) break;
1354 if (i == len && (!p[len] || !strcmpiW( p + len, soW )))
1355 {
1356 /* the filename matches, use path as the full path */
1357 len += p - path;
1358 if ((fullname = RtlAllocateHeap( GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR) )))
1359 {
1360 memcpy( fullname, path, len * sizeof(WCHAR) );
1361 fullname[len] = 0;
1362 }
1363 return fullname;
1364 }
1365 }
1366
1367 if ((fullname = RtlAllocateHeap( GetProcessHeap(), 0,
1368 system_dir.MaximumLength + (len + 1) * sizeof(WCHAR) )))
1369 {
1370 memcpy( fullname, system_dir.Buffer, system_dir.Length );
1371 p = fullname + system_dir.Length / sizeof(WCHAR);
1372 if (p > fullname && p[-1] != '\\') *p++ = '\\';
1373 ascii_to_unicode( p, filename, len + 1 );
1374 }
1375 return fullname;
1376 }
1377
1378
1379 /***********************************************************************
1380 * load_builtin_callback
1381 *
1382 * Load a library in memory; callback function for wine_dll_register
1383 */
1384 static void load_builtin_callback( void *module, const char *filename )
1385 {
1386 static const WCHAR emptyW[1];
1387 IMAGE_NT_HEADERS *nt;
1388 WINE_MODREF *wm;
1389 WCHAR *fullname;
1390 const WCHAR *load_path;
1391
1392 if (!module)
1393 {
1394 ERR("could not map image for %s\n", filename ? filename : "main exe" );
1395 return;
1396 }
1397 if (!(nt = RtlImageNtHeader( module )))
1398 {
1399 ERR( "bad module for %s\n", filename ? filename : "main exe" );
1400 builtin_load_info->status = STATUS_INVALID_IMAGE_FORMAT;
1401 return;
1402 }
1403
1404 virtual_create_builtin_view( module );
1405
1406 /* create the MODREF */
1407
1408 if (!(fullname = get_builtin_fullname( builtin_load_info->filename, filename )))
1409 {
1410 ERR( "can't load %s\n", filename );
1411 builtin_load_info->status = STATUS_NO_MEMORY;
1412 return;
1413 }
1414
1415 wm = alloc_module( module, fullname );
1416 RtlFreeHeap( GetProcessHeap(), 0, fullname );
1417 if (!wm)
1418 {
1419 ERR( "can't load %s\n", filename );
1420 builtin_load_info->status = STATUS_NO_MEMORY;
1421 return;
1422 }
1423 wm->ldr.Flags |= LDR_WINE_INTERNAL;
1424
1425 if (!(nt->FileHeader.Characteristics & IMAGE_FILE_DLL) &&
1426 !NtCurrentTeb()->Peb->ImageBaseAddress) /* if we already have an executable, ignore this one */
1427 {
1428 NtCurrentTeb()->Peb->ImageBaseAddress = module;
1429 }
1430 else
1431 {
1432 /* fixup imports */
1433
1434 load_path = builtin_load_info->load_path;
1435 if (!load_path) load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
1436 if (!load_path) load_path = emptyW;
1437 if (fixup_imports( wm, load_path ) != STATUS_SUCCESS)
1438 {
1439 /* the module has only be inserted in the load & memory order lists */
1440 RemoveEntryList(&wm->ldr.InLoadOrderModuleList);
1441 RemoveEntryList(&wm->ldr.InMemoryOrderModuleList);
1442 /* FIXME: free the modref */
1443 builtin_load_info->status = STATUS_DLL_NOT_FOUND;
1444 return;
1445 }
1446 }
1447
1448 builtin_load_info->wm = wm;
1449 TRACE( "loaded %s %p %p\n", filename, wm, module );
1450
1451 /* send the DLL load event */
1452
1453 SERVER_START_REQ( load_dll )
1454 {
1455 req->handle = 0;
1456 req->base = wine_server_client_ptr( module );
1457 req->size = nt->OptionalHeader.SizeOfImage;
1458 req->dbg_offset = nt->FileHeader.PointerToSymbolTable;
1459 req->dbg_size = nt->FileHeader.NumberOfSymbols;
1460 req->name = wine_server_client_ptr( &wm->ldr.FullDllName.Buffer );
1461 wine_server_add_data( req, wm->ldr.FullDllName.Buffer, wm->ldr.FullDllName.Length );
1462 wine_server_call( req );
1463 }
1464 SERVER_END_REQ;
1465
1466 /* setup relay debugging entry points */
1467 if (TRACE_ON(relay)) RELAY_SetupDLL( module );
1468 }
1469
1470
1471 /******************************************************************************
1472 * load_native_dll (internal)
1473 */
1474 static NTSTATUS load_native_dll( LPCWSTR load_path, LPCWSTR name, HANDLE file,
1475 DWORD flags, WINE_MODREF** pwm )
1476 {
1477 void *module;
1478 HANDLE mapping;
1479 LARGE_INTEGER size;
1480 IMAGE_NT_HEADERS *nt;
1481 SIZE_T len = 0;
1482 WINE_MODREF *wm;
1483 NTSTATUS status;
1484
1485 TRACE("Trying native dll %s\n", debugstr_w(name));
1486
1487 size.QuadPart = 0;
1488 status = NtCreateSection( &mapping, STANDARD_RIGHTS_REQUIRED | SECTION_QUERY | SECTION_MAP_READ,
1489 NULL, &size, PAGE_READONLY, SEC_IMAGE, file );
1490 if (status != STATUS_SUCCESS) return status;
1491
1492 module = NULL;
1493 status = NtMapViewOfSection( mapping, NtCurrentProcess(),
1494 &module, 0, 0, &size, &len, ViewShare, 0, PAGE_READONLY );
1495 NtClose( mapping );
1496 if (status < 0) return status;
1497
1498 /* create the MODREF */
1499
1500 if (!(wm = alloc_module( module, name ))) return STATUS_NO_MEMORY;
1501
1502 /* fixup imports */
1503
1504 if (!(flags & DONT_RESOLVE_DLL_REFERENCES))
1505 {
1506 if ((status = fixup_imports( wm, load_path )) != STATUS_SUCCESS)
1507 {
1508 /* the module has only be inserted in the load & memory order lists */
1509 RemoveEntryList(&wm->ldr.InLoadOrderModuleList);
1510 RemoveEntryList(&wm->ldr.InMemoryOrderModuleList);
1511
1512 /* FIXME: there are several more dangling references
1513 * left. Including dlls loaded by this dll before the
1514 * failed one. Unrolling is rather difficult with the
1515 * current structure and we can leave them lying
1516 * around with no problems, so we don't care.
1517 * As these might reference our wm, we don't free it.
1518 */
1519 return status;
1520 }
1521 }
1522
1523 /* send DLL load event */
1524
1525 nt = RtlImageNtHeader( module );
1526
1527 SERVER_START_REQ( load_dll )
1528 {
1529 req->handle = wine_server_obj_handle( file );
1530 req->base = wine_server_client_ptr( module );
1531 req->size = nt->OptionalHeader.SizeOfImage;
1532 req->dbg_offset = nt->FileHeader.PointerToSymbolTable;
1533 req->dbg_size = nt->FileHeader.NumberOfSymbols;
1534 req->name = wine_server_client_ptr( &wm->ldr.FullDllName.Buffer );
1535 wine_server_add_data( req, wm->ldr.FullDllName.Buffer, wm->ldr.FullDllName.Length );
1536 wine_server_call( req );
1537 }
1538 SERVER_END_REQ;
1539
1540 if ((wm->ldr.Flags & LDR_IMAGE_IS_DLL) && TRACE_ON(snoop)) SNOOP_SetupDLL( module );
1541
1542 TRACE_(loaddll)( "Loaded %s at %p: native\n", debugstr_w(wm->ldr.FullDllName.Buffer), module );
1543
1544 wm->ldr.LoadCount = 1;
1545 *pwm = wm;
1546 return STATUS_SUCCESS;
1547 }
1548
1549
1550 /***********************************************************************
1551 * load_builtin_dll
1552 */
1553 static NTSTATUS load_builtin_dll( LPCWSTR load_path, LPCWSTR path, HANDLE file,
1554 DWORD flags, WINE_MODREF** pwm )
1555 {
1556 char error[256], dllname[MAX_PATH];
1557 const WCHAR *name, *p;
1558 DWORD len, i;
1559 void *handle = NULL;
1560 struct builtin_load_info info, *prev_info;
1561
1562 /* Fix the name in case we have a full path and extension */
1563 name = path;
1564 if ((p = strrchrW( name, '\\' ))) name = p + 1;
1565 if ((p = strrchrW( name, '/' ))) name = p + 1;
1566
1567 /* load_library will modify info.status. Note also that load_library can be
1568 * called several times, if the .so file we're loading has dependencies.
1569 * info.status will gather all the errors we may get while loading all these
1570 * libraries
1571 */
1572 info.load_path = load_path;
1573 info.filename = NULL;
1574 info.status = STATUS_SUCCESS;
1575 info.wm = NULL;
1576
1577 if (file) /* we have a real file, try to load it */
1578 {
1579 UNICODE_STRING nt_name;
1580 ANSI_STRING unix_name;
1581
1582 TRACE("Trying built-in %s\n", debugstr_w(path));
1583
1584 if (!RtlDosPathNameToNtPathName_U( path, &nt_name, NULL, NULL ))
1585 return STATUS_DLL_NOT_FOUND;
1586
1587 if (wine_nt_to_unix_file_name( &nt_name, &unix_name, FILE_OPEN, FALSE ))
1588 {
1589 RtlFreeUnicodeString( &nt_name );
1590 return STATUS_DLL_NOT_FOUND;
1591 }
1592 prev_info = builtin_load_info;
1593 info.filename = nt_name.Buffer + 4; /* skip \??\ */
1594 builtin_load_info = &info;
1595 handle = wine_dlopen( unix_name.Buffer, RTLD_NOW, error, sizeof(error) );
1596 builtin_load_info = prev_info;
1597 RtlFreeUnicodeString( &nt_name );
1598 RtlFreeHeap( GetProcessHeap(), 0, unix_name.Buffer );
1599 if (!handle)
1600 {
1601 WARN( "failed to load .so lib for builtin %s: %s\n", debugstr_w(path), error );
1602 return STATUS_INVALID_IMAGE_FORMAT;
1603 }
1604 }
1605 else
1606 {
1607 int file_exists;
1608
1609 TRACE("Trying built-in %s\n", debugstr_w(name));
1610
1611 /* we don't want to depend on the current codepage here */
1612 len = strlenW( name ) + 1;
1613 if (len >= sizeof(dllname)) return STATUS_NAME_TOO_LONG;
1614 for (i = 0; i < len; i++)
1615 {
1616 if (name[i] > 127) return STATUS_DLL_NOT_FOUND;
1617 dllname[i] = (char)name[i];
1618 if (dllname[i] >= 'A' && dllname[i] <= 'Z') dllname[i] += 'a' - 'A';
1619 }
1620
1621 prev_info = builtin_load_info;
1622 builtin_load_info = &info;
1623 handle = wine_dll_load( dllname, error, sizeof(error), &file_exists );
1624 builtin_load_info = prev_info;
1625 if (!handle)
1626 {
1627 if (!file_exists)
1628 {
1629 /* The file does not exist -> WARN() */
1630 WARN("cannot open .so lib for builtin %s: %s\n", debugstr_w(name), error);
1631 return STATUS_DLL_NOT_FOUND;
1632 }
1633 /* ERR() for all other errors (missing functions, ...) */
1634 ERR("failed to load .so lib for builtin %s: %s\n", debugstr_w(name), error );
1635 return STATUS_PROCEDURE_NOT_FOUND;
1636 }
1637 }
1638
1639 if (info.status != STATUS_SUCCESS)
1640 {
1641 wine_dll_unload( handle );
1642 return info.status;
1643 }
1644
1645 if (!info.wm)
1646 {
1647 PLIST_ENTRY mark, entry;
1648
1649 /* The constructor wasn't called, this means the .so is already
1650 * loaded under a different name. Try to find the wm for it. */
1651
1652 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
1653 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1654 {
1655 LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
1656 if (mod->Flags & LDR_WINE_INTERNAL && mod->SectionHandle == handle)
1657 {
1658 info.wm = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
1659 TRACE( "Found %s at %p for builtin %s\n",
1660 debugstr_w(info.wm->ldr.FullDllName.Buffer), info.wm->ldr.BaseAddress, debugstr_w(path) );
1661 break;
1662 }
1663 }
1664 wine_dll_unload( handle ); /* release the libdl refcount */
1665 if (!info.wm) return STATUS_INVALID_IMAGE_FORMAT;
1666 if (info.wm->ldr.LoadCount != -1) info.wm->ldr.LoadCount++;
1667 }
1668 else
1669 {
1670 TRACE_(loaddll)( "Loaded %s at %p: builtin\n", debugstr_w(info.wm->ldr.FullDllName.Buffer), info.wm->ldr.BaseAddress );
1671 info.wm->ldr.LoadCount = 1;
1672 info.wm->ldr.SectionHandle = handle;
1673 }
1674
1675 *pwm = info.wm;
1676 return STATUS_SUCCESS;
1677 }
1678
1679
1680 /***********************************************************************
1681 * find_actctx_dll
1682 *
1683 * Find the full path (if any) of the dll from the activation context.
1684 */
1685 static NTSTATUS find_actctx_dll( LPCWSTR libname, LPWSTR *fullname )
1686 {
1687 static const WCHAR winsxsW[] = {'\\','w','i','n','s','x','s','\\'};
1688 static const WCHAR dotManifestW[] = {'.','m','a','n','i','f','e','s','t',0};
1689
1690 ACTIVATION_CONTEXT_ASSEMBLY_DETAILED_INFORMATION *info;
1691 ACTCTX_SECTION_KEYED_DATA data;
1692 UNICODE_STRING nameW;
1693 NTSTATUS status;
1694 SIZE_T needed, size = 1024;
1695 WCHAR *p;
1696
1697 RtlInitUnicodeString( &nameW, libname );
1698 data.cbSize = sizeof(data);
1699 status = RtlFindActivationContextSectionString( FIND_ACTCTX_SECTION_KEY_RETURN_HACTCTX, NULL,
1700 ACTIVATION_CONTEXT_SECTION_DLL_REDIRECTION,
1701 &nameW, &data );
1702 if (status != STATUS_SUCCESS) return status;
1703
1704 for (;;)
1705 {
1706 if (!(info = RtlAllocateHeap( GetProcessHeap(), 0, size )))
1707 {
1708 status = STATUS_NO_MEMORY;
1709 goto done;
1710 }
1711 status = RtlQueryInformationActivationContext( 0, data.hActCtx, &data.ulAssemblyRosterIndex,
1712 AssemblyDetailedInformationInActivationContext,
1713 info, size, &needed );
1714 if (status == STATUS_SUCCESS) break;
1715 if (status != STATUS_BUFFER_TOO_SMALL) goto done;
1716 RtlFreeHeap( GetProcessHeap(), 0, info );
1717 size = needed;
1718 /* restart with larger buffer */
1719 }
1720
1721 if (!info->lpAssemblyManifestPath || !info->lpAssemblyDirectoryName)
1722 {
1723 status = STATUS_SXS_KEY_NOT_FOUND;
1724 goto done;
1725 }
1726
1727 if ((p = strrchrW( info->lpAssemblyManifestPath, '\\' )))
1728 {
1729 DWORD dirlen = info->ulAssemblyDirectoryNameLength / sizeof(WCHAR);
1730
1731 p++;
1732 if (strncmpiW( p, info->lpAssemblyDirectoryName, dirlen ) || strcmpiW( p + dirlen, dotManifestW ))
1733 {
1734 /* manifest name does not match directory name, so it's not a global
1735 * windows/winsxs manifest; use the manifest directory name instead */
1736 dirlen = p - info->lpAssemblyManifestPath;
1737 needed = (dirlen + 1) * sizeof(WCHAR) + nameW.Length;
1738 if (!(*fullname = p = RtlAllocateHeap( GetProcessHeap(), 0, needed )))
1739 {
1740 status = STATUS_NO_MEMORY;
1741 goto done;
1742 }
1743 memcpy( p, info->lpAssemblyManifestPath, dirlen * sizeof(WCHAR) );
1744 p += dirlen;
1745 strcpyW( p, libname );
1746 goto done;
1747 }
1748 }
1749
1750 needed = (windows_dir.Length + sizeof(winsxsW) + info->ulAssemblyDirectoryNameLength +
1751 nameW.Length + 2*sizeof(WCHAR));
1752
1753 if (!(*fullname = p = RtlAllocateHeap( GetProcessHeap(), 0, needed )))
1754 {
1755 status = STATUS_NO_MEMORY;
1756 goto done;
1757 }
1758 memcpy( p, windows_dir.Buffer, windows_dir.Length );
1759 p += windows_dir.Length / sizeof(WCHAR);
1760 memcpy( p, winsxsW, sizeof(winsxsW) );
1761 p += sizeof(winsxsW) / sizeof(WCHAR);
1762 memcpy( p, info->lpAssemblyDirectoryName, info->ulAssemblyDirectoryNameLength );
1763 p += info->ulAssemblyDirectoryNameLength / sizeof(WCHAR);
1764 *p++ = '\\';
1765 strcpyW( p, libname );
1766 done:
1767 RtlFreeHeap( GetProcessHeap(), 0, info );
1768 RtlReleaseActivationContext( data.hActCtx );
1769 return status;
1770 }
1771
1772
1773 /***********************************************************************
1774 * find_dll_file
1775 *
1776 * Find the file (or already loaded module) for a given dll name.
1777 */
1778 static NTSTATUS find_dll_file( const WCHAR *load_path, const WCHAR *libname,
1779 WCHAR *filename, ULONG *size, WINE_MODREF **pwm, HANDLE *handle )
1780 {
1781 OBJECT_ATTRIBUTES attr;
1782 IO_STATUS_BLOCK io;
1783 UNICODE_STRING nt_name;
1784 WCHAR *file_part, *ext, *dllname;
1785 ULONG len;
1786
1787 /* first append .dll if needed */
1788
1789 dllname = NULL;
1790 if (!(ext = strrchrW( libname, '.')) || strchrW( ext, '/' ) || strchrW( ext, '\\'))
1791 {
1792 if (!(dllname = RtlAllocateHeap( GetProcessHeap(), 0,
1793 (strlenW(libname) * sizeof(WCHAR)) + sizeof(dllW) )))
1794 return STATUS_NO_MEMORY;
1795 strcpyW( dllname, libname );
1796 strcatW( dllname, dllW );
1797 libname = dllname;
1798 }
1799
1800 nt_name.Buffer = NULL;
1801
1802 if (!contains_path( libname ))
1803 {
1804 NTSTATUS status;
1805 WCHAR *fullname = NULL;
1806
1807 if ((*pwm = find_basename_module( libname )) != NULL) goto found;
1808
1809 status = find_actctx_dll( libname, &fullname );
1810 if (status == STATUS_SUCCESS)
1811 {
1812 TRACE ("found %s for %s\n", debugstr_w(fullname), debugstr_w(libname) );
1813 RtlFreeHeap( GetProcessHeap(), 0, dllname );
1814 libname = dllname = fullname;
1815 }
1816 else if (status != STATUS_SXS_KEY_NOT_FOUND)
1817 {
1818 RtlFreeHeap( GetProcessHeap(), 0, dllname );
1819 return status;
1820 }
1821 }
1822
1823 if (RtlDetermineDosPathNameType_U( libname ) == RELATIVE_PATH)
1824 {
1825 /* we need to search for it */
1826 len = RtlDosSearchPath_U( load_path, libname, NULL, *size, filename, &file_part );
1827 if (len)
1828 {
1829 if (len >= *size) goto overflow;
1830 if ((*pwm = find_fullname_module( filename )) || !handle) goto found;
1831
1832 if (!RtlDosPathNameToNtPathName_U( filename, &nt_name, NULL, NULL ))
1833 {
1834 RtlFreeHeap( GetProcessHeap(), 0, dllname );
1835 return STATUS_NO_MEMORY;
1836 }
1837 attr.Length = sizeof(attr);
1838 attr.RootDirectory = 0;
1839 attr.Attributes = OBJ_CASE_INSENSITIVE;
1840 attr.ObjectName = &nt_name;
1841 attr.SecurityDescriptor = NULL;
1842 attr.SecurityQualityOfService = NULL;
1843 if (NtOpenFile( handle, GENERIC_READ, &attr, &io, FILE_SHARE_READ|FILE_SHARE_DELETE, 0 )) *handle = 0;
1844 goto found;
1845 }
1846
1847 /* not found */
1848
1849 if (!contains_path( libname ))
1850 {
1851 /* if libname doesn't contain a path at all, we simply return the name as is,
1852 * to be loaded as builtin */
1853 len = strlenW(libname) * sizeof(WCHAR);
1854 if (len >= *size) goto overflow;
1855 strcpyW( filename, libname );
1856 goto found;
1857 }
1858 }
1859
1860 /* absolute path name, or relative path name but not found above */
1861
1862 if (!RtlDosPathNameToNtPathName_U( libname, &nt_name, &file_part, NULL ))
1863 {
1864 RtlFreeHeap( GetProcessHeap(), 0, dllname );
1865 return STATUS_NO_MEMORY;
1866 }
1867 len = nt_name.Length - 4*sizeof(WCHAR); /* for \??\ prefix */
1868 if (len >= *size) goto overflow;
1869 memcpy( filename, nt_name.Buffer + 4, len + sizeof(WCHAR) );
1870 if (!(*pwm = find_fullname_module( filename )) && handle)
1871 {
1872 attr.Length = sizeof(attr);
1873 attr.RootDirectory = 0;
1874 attr.Attributes = OBJ_CASE_INSENSITIVE;
1875 attr.ObjectName = &nt_name;
1876 attr.SecurityDescriptor = NULL;
1877 attr.SecurityQualityOfService = NULL;
1878 if (NtOpenFile( handle, GENERIC_READ, &attr, &io, FILE_SHARE_READ|FILE_SHARE_DELETE, 0 )) *handle = 0;
1879 }
1880 found:
1881 RtlFreeUnicodeString( &nt_name );
1882 RtlFreeHeap( GetProcessHeap(), 0, dllname );
1883 return STATUS_SUCCESS;
1884
1885 overflow:
1886 RtlFreeUnicodeString( &nt_name );
1887 RtlFreeHeap( GetProcessHeap(), 0, dllname );
1888 *size = len + sizeof(WCHAR);
1889 return STATUS_BUFFER_TOO_SMALL;
1890 }
1891
1892
1893 /***********************************************************************
1894 * load_dll (internal)
1895 *
1896 * Load a PE style module according to the load order.
1897 * The loader_section must be locked while calling this function.
1898 */
1899 static NTSTATUS load_dll( LPCWSTR load_path, LPCWSTR libname, DWORD flags, WINE_MODREF** pwm )
1900 {
1901 enum loadorder loadorder;
1902 WCHAR buffer[32];
1903 WCHAR *filename;
1904 ULONG size;
1905 WINE_MODREF *main_exe;
1906 HANDLE handle = 0;
1907 NTSTATUS nts;
1908
1909 TRACE( "looking for %s in %s\n", debugstr_w(libname), debugstr_w(load_path) );
1910
1911 *pwm = NULL;
1912 filename = buffer;
1913 size = sizeof(buffer);
1914 for (;;)
1915 {
1916 nts = find_dll_file( load_path, libname, filename, &size, pwm, &handle );
1917 if (nts == STATUS_SUCCESS) break;
1918 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
1919 if (nts != STATUS_BUFFER_TOO_SMALL) return nts;
1920 /* grow the buffer and retry */
1921 if (!(filename = RtlAllocateHeap( GetProcessHeap(), 0, size ))) return STATUS_NO_MEMORY;
1922 }
1923
1924 if (*pwm) /* found already loaded module */
1925 {
1926 if ((*pwm)->ldr.LoadCount != -1) (*pwm)->ldr.LoadCount++;
1927
1928 if (!(flags & DONT_RESOLVE_DLL_REFERENCES)) fixup_imports( *pwm, load_path );
1929
1930 TRACE("Found %s for %s at %p, count=%d\n",
1931 debugstr_w((*pwm)->ldr.FullDllName.Buffer), debugstr_w(libname),
1932 (*pwm)->ldr.BaseAddress, (*pwm)->ldr.LoadCount);
1933 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
1934 return STATUS_SUCCESS;
1935 }
1936
1937 main_exe = get_modref( NtCurrentTeb()->Peb->ImageBaseAddress );
1938 loadorder = get_load_order( main_exe ? main_exe->ldr.BaseDllName.Buffer : NULL, filename );
1939
1940 if (handle && is_fake_dll( handle ))
1941 {
1942 TRACE( "%s is a fake Wine dll\n", debugstr_w(filename) );
1943 NtClose( handle );
1944 handle = 0;
1945 }
1946
1947 switch(loadorder)
1948 {
1949 case LO_INVALID:
1950 nts = STATUS_NO_MEMORY;
1951 break;
1952 case LO_DISABLED:
1953 nts = STATUS_DLL_NOT_FOUND;
1954 break;
1955 case LO_NATIVE:
1956 case LO_NATIVE_BUILTIN:
1957 if (!handle) nts = STATUS_DLL_NOT_FOUND;
1958 else
1959 {
1960 nts = load_native_dll( load_path, filename, handle, flags, pwm );
1961 if (nts == STATUS_INVALID_FILE_FOR_SECTION)
1962 /* not in PE format, maybe it's a builtin */
1963 nts = load_builtin_dll( load_path, filename, handle, flags, pwm );
1964 }
1965 if (nts == STATUS_DLL_NOT_FOUND && loadorder == LO_NATIVE_BUILTIN)
1966 nts = load_builtin_dll( load_path, filename, 0, flags, pwm );
1967 break;
1968 case LO_BUILTIN:
1969 case LO_BUILTIN_NATIVE:
1970 case LO_DEFAULT: /* default is builtin,native */
1971 nts = load_builtin_dll( load_path, filename, handle, flags, pwm );
1972 if (!handle) break; /* nothing else we can try */
1973 /* file is not a builtin library, try without using the specified file */
1974 if (nts != STATUS_SUCCESS)
1975 nts = load_builtin_dll( load_path, filename, 0, flags, pwm );
1976 if (nts == STATUS_SUCCESS && loadorder == LO_DEFAULT &&
1977 (MODULE_InitDLL( *pwm, DLL_WINE_PREATTACH, NULL ) != STATUS_SUCCESS))
1978 {
1979 /* stub-only dll, try native */
1980 TRACE( "%s pre-attach returned FALSE, preferring native\n", debugstr_w(filename) );
1981 LdrUnloadDll( (*pwm)->ldr.BaseAddress );
1982 nts = STATUS_DLL_NOT_FOUND;
1983 }
1984 if (nts == STATUS_DLL_NOT_FOUND && loadorder != LO_BUILTIN)
1985 nts = load_native_dll( load_path, filename, handle, flags, pwm );
1986 break;
1987 }
1988
1989 if (nts == STATUS_SUCCESS)
1990 {
1991 /* Initialize DLL just loaded */
1992 TRACE("Loaded module %s (%s) at %p\n", debugstr_w(filename),
1993 ((*pwm)->ldr.Flags & LDR_WINE_INTERNAL) ? "builtin" : "native",
1994 (*pwm)->ldr.BaseAddress);
1995 if (handle) NtClose( handle );
1996 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
1997 return nts;
1998 }
1999
2000 WARN("Failed to load module %s; status=%x\n", debugstr_w(libname), nts);
2001 if (handle) NtClose( handle );
2002 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
2003 return nts;
2004 }
2005
2006 /******************************************************************
2007 * LdrLoadDll (NTDLL.@)
2008 */
2009 NTSTATUS WINAPI LdrLoadDll(LPCWSTR path_name, DWORD flags,
2010 const UNICODE_STRING *libname, HMODULE* hModule)
2011 {
2012 WINE_MODREF *wm;
2013 NTSTATUS nts;
2014
2015 RtlEnterCriticalSection( &loader_section );
2016
2017 if (!path_name) path_name = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
2018 nts = load_dll( path_name, libname->Buffer, flags, &wm );
2019
2020 if (nts == STATUS_SUCCESS && !(wm->ldr.Flags & LDR_DONT_RESOLVE_REFS))
2021 {
2022 nts = process_attach( wm, NULL );
2023 if (nts != STATUS_SUCCESS)
2024 {
2025 LdrUnloadDll(wm->ldr.BaseAddress);
2026 wm = NULL;
2027 }
2028 }
2029 *hModule = (wm) ? wm->ldr.BaseAddress : NULL;
2030
2031 RtlLeaveCriticalSection( &loader_section );
2032 return nts;
2033 }
2034
2035
2036 /******************************************************************
2037 * LdrGetDllHandle (NTDLL.@)
2038 */
2039 NTSTATUS WINAPI LdrGetDllHandle( LPCWSTR load_path, ULONG flags, const UNICODE_STRING *name, HMODULE *base )
2040 {
2041 NTSTATUS status;
2042 WCHAR buffer[128];
2043 WCHAR *filename;
2044 ULONG size;
2045 WINE_MODREF *wm;
2046
2047 RtlEnterCriticalSection( &loader_section );
2048
2049 if (!load_path) load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
2050
2051 filename = buffer;
2052 size = sizeof(buffer);
2053 for (;;)
2054 {
2055 status = find_dll_file( load_path, name->Buffer, filename, &size, &wm, NULL );
2056 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
2057 if (status != STATUS_BUFFER_TOO_SMALL) break;
2058 /* grow the buffer and retry */
2059 if (!(filename = RtlAllocateHeap( GetProcessHeap(), 0, size )))
2060 {
2061 status = STATUS_NO_MEMORY;
2062 break;
2063 }
2064 }
2065
2066 if (status == STATUS_SUCCESS)
2067 {
2068 if (wm) *base = wm->ldr.BaseAddress;
2069 else status = STATUS_DLL_NOT_FOUND;
2070 }
2071
2072 RtlLeaveCriticalSection( &loader_section );
2073 TRACE( "%s -> %p (load path %s)\n", debugstr_us(name), status ? NULL : *base, debugstr_w(load_path) );
2074 return status;
2075 }
2076
2077
2078 /******************************************************************
2079 * LdrAddRefDll (NTDLL.@)
2080 */
2081 NTSTATUS WINAPI LdrAddRefDll( ULONG flags, HMODULE module )
2082 {
2083 NTSTATUS ret = STATUS_SUCCESS;
2084 WINE_MODREF *wm;
2085
2086 if (flags) FIXME( "%p flags %x not implemented\n", module, flags );
2087
2088 RtlEnterCriticalSection( &loader_section );
2089
2090 if ((wm = get_modref( module )))
2091 {
2092 if (wm->ldr.LoadCount != -1) wm->ldr.LoadCount++;
2093 TRACE( "(%s) ldr.LoadCount: %d\n", debugstr_w(wm->ldr.BaseDllName.Buffer), wm->ldr.LoadCount );
2094 }
2095 else ret = STATUS_INVALID_PARAMETER;
2096
2097 RtlLeaveCriticalSection( &loader_section );
2098 return ret;
2099 }
2100
2101
2102 /***********************************************************************
2103 * LdrProcessRelocationBlock (NTDLL.@)
2104 *
2105 * Apply relocations to a given page of a mapped PE image.
2106 */
2107 IMAGE_BASE_RELOCATION * WINAPI LdrProcessRelocationBlock( void *page, UINT count,
2108 USHORT *relocs, INT_PTR delta )
2109 {
2110 while (count--)
2111 {
2112 USHORT offset = *relocs & 0xfff;
2113 int type = *relocs >> 12;
2114 switch(type)
2115 {
2116 case IMAGE_REL_BASED_ABSOLUTE:
2117 break;
2118 case IMAGE_REL_BASED_HIGH:
2119 *(short *)((char *)page + offset) += HIWORD(delta);
2120 break;
2121 case IMAGE_REL_BASED_LOW:
2122 *(short *)((char *)page + offset) += LOWORD(delta);
2123 break;
2124 case IMAGE_REL_BASED_HIGHLOW:
2125 *(int *)((char *)page + offset) += delta;
2126 break;
2127 #ifdef __x86_64__
2128 case IMAGE_REL_BASED_DIR64:
2129 *(INT_PTR *)((char *)page + offset) += delta;
2130 break;
2131 #endif
2132 default:
2133 FIXME("Unknown/unsupported fixup type %x.\n", type);
2134 return NULL;
2135 }
2136 relocs++;
2137 }
2138 return (IMAGE_BASE_RELOCATION *)relocs; /* return address of next block */
2139 }
2140
2141
2142 /******************************************************************
2143 * LdrQueryProcessModuleInformation
2144 *
2145 */
2146 NTSTATUS WINAPI LdrQueryProcessModuleInformation(PSYSTEM_MODULE_INFORMATION smi,
2147 ULONG buf_size, ULONG* req_size)
2148 {
2149 SYSTEM_MODULE* sm = &smi->Modules[0];
2150 ULONG size = sizeof(ULONG);
2151 NTSTATUS nts = STATUS_SUCCESS;
2152 ANSI_STRING str;
2153 char* ptr;
2154 PLIST_ENTRY mark, entry;
2155 PLDR_MODULE mod;
2156 WORD id = 0;
2157
2158 smi->ModulesCount = 0;
2159
2160 RtlEnterCriticalSection( &loader_section );
2161 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
2162 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
2163 {
2164 mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
2165 size += sizeof(*sm);
2166 if (size <= buf_size)
2167 {
2168 sm->Reserved1 = 0; /* FIXME */
2169 sm->Reserved2 = 0; /* FIXME */
2170 sm->ImageBaseAddress = mod->BaseAddress;
2171 sm->ImageSize = mod->SizeOfImage;
2172 sm->Flags = mod->Flags;
2173 sm->Id = id++;
2174 sm->Rank = 0; /* FIXME */
2175 sm->Unknown = 0; /* FIXME */
2176 str.Length = 0;
2177 str.MaximumLength = MAXIMUM_FILENAME_LENGTH;
2178 str.Buffer = (char*)sm->Name;
2179 RtlUnicodeStringToAnsiString(&str, &mod->FullDllName, FALSE);
2180 ptr = strrchr(str.Buffer, '\\');
2181 sm->NameOffset = (ptr != NULL) ? (ptr - str.Buffer + 1) : 0;
2182
2183 smi->ModulesCount++;
2184 sm++;
2185 }
2186 else nts = STATUS_INFO_LENGTH_MISMATCH;
2187 }
2188 RtlLeaveCriticalSection( &loader_section );
2189
2190 if (req_size) *req_size = size;
2191
2192 return nts;
2193 }
2194
2195
2196 static NTSTATUS query_dword_option( HANDLE hkey, LPCWSTR name, ULONG *value )
2197 {
2198 NTSTATUS status;
2199 UNICODE_STRING str;
2200 ULONG size;
2201 WCHAR buffer[64];
2202 KEY_VALUE_PARTIAL_INFORMATION *info = (KEY_VALUE_PARTIAL_INFORMATION *)buffer;
2203
2204 RtlInitUnicodeString( &str, name );
2205
2206 size = sizeof(buffer) - sizeof(WCHAR);
2207 if ((status = NtQueryValueKey( hkey, &str, KeyValuePartialInformation, buffer, size, &size )))
2208 return status;
2209
2210 if (info->Type != REG_DWORD)
2211 {
2212 buffer[size / sizeof(WCHAR)] = 0;
2213 *value = strtoulW( (WCHAR *)info->Data, 0, 16 );
2214 }
2215 else memcpy( value, info->Data, sizeof(*value) );
2216 return status;
2217 }
2218
2219 static NTSTATUS query_string_option( HANDLE hkey, LPCWSTR name, ULONG type,
2220 void *data, ULONG in_size, ULONG *out_size )
2221 {
2222 NTSTATUS status;
2223 UNICODE_STRING str;
2224 ULONG size;
2225 char *buffer;
2226 KEY_VALUE_PARTIAL_INFORMATION *info;
2227 static const int info_size = FIELD_OFFSET( KEY_VALUE_PARTIAL_INFORMATION, Data );
2228
2229 RtlInitUnicodeString( &str, name );
2230
2231 size = info_size + in_size;
2232 if (!(buffer = RtlAllocateHeap( GetProcessHeap(), 0, size ))) return STATUS_NO_MEMORY;
2233 info = (KEY_VALUE_PARTIAL_INFORMATION *)buffer;
2234 status = NtQueryValueKey( hkey, &str, KeyValuePartialInformation, buffer, size, &size );
2235 if (!status || status == STATUS_BUFFER_OVERFLOW)
2236 {
2237 if (out_size) *out_size = info->DataLength;
2238 if (data && !status) memcpy( data, info->Data, info->DataLength );
2239 }
2240 RtlFreeHeap( GetProcessHeap(), 0, buffer );
2241 return status;
2242 }
2243
2244
2245 /******************************************************************
2246 * LdrQueryImageFileExecutionOptions (NTDLL.@)
2247 */
2248 NTSTATUS WINAPI LdrQueryImageFileExecutionOptions( const UNICODE_STRING *key, LPCWSTR value, ULONG type,
2249 void *data, ULONG in_size, ULONG *out_size )
2250 {
2251 static const WCHAR optionsW[] = {'M','a','c','h','i','n','e','\\',
2252 'S','o','f','t','w','a','r','e','\\',
2253 'M','i','c','r','o','s','o','f','t','\\',
2254 'W','i','n','d','o','w','s',' ','N','T','\\',
2255 'C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',
2256 'I','m','a','g','e',' ','F','i','l','e',' ',
2257 'E','x','e','c','u','t','i','o','n',' ','O','p','t','i','o','n','s','\\'};
2258 WCHAR path[MAX_PATH + sizeof(optionsW)/sizeof(WCHAR)];
2259 OBJECT_ATTRIBUTES attr;
2260 UNICODE_STRING name_str;
2261 HANDLE hkey;
2262 NTSTATUS status;
2263 ULONG len;
2264 WCHAR *p;
2265
2266 attr.Length = sizeof(attr);
2267 attr.RootDirectory = 0;
2268 attr.ObjectName = &name_str;
2269 attr.Attributes = OBJ_CASE_INSENSITIVE;
2270 attr.SecurityDescriptor = NULL;
2271 attr.SecurityQualityOfService = NULL;
2272
2273 if ((p = memrchrW( key->Buffer, '\\', key->Length / sizeof(WCHAR) ))) p++;
2274 else p = key->Buffer;
2275 len = key->Length - (p - key->Buffer) * sizeof(WCHAR);
2276 name_str.Buffer = path;
2277 name_str.Length = sizeof(optionsW) + len;
2278 name_str.MaximumLength = name_str.Length;
2279 memcpy( path, optionsW, sizeof(optionsW) );
2280 memcpy( path + sizeof(optionsW)/sizeof(WCHAR), p, len );
2281 if ((status = NtOpenKey( &hkey, KEY_QUERY_VALUE, &attr ))) return status;
2282
2283 if (type == REG_DWORD)
2284 {
2285 if (out_size) *out_size = sizeof(ULONG);
2286 if (in_size >= sizeof(ULONG)) status = query_dword_option( hkey, value, data );
2287 else status = STATUS_BUFFER_OVERFLOW;
2288 }
2289 else status = query_string_option( hkey, value, type, data, in_size, out_size );
2290
2291 NtClose( hkey );
2292 return status;
2293 }
2294
2295
2296 /******************************************************************
2297 * RtlDllShutdownInProgress (NTDLL.@)
2298 */
2299 BOOLEAN WINAPI RtlDllShutdownInProgress(void)
2300 {
2301 return process_detaching;
2302 }
2303
2304
2305 /******************************************************************
2306 * LdrShutdownProcess (NTDLL.@)
2307 *
2308 */
2309 void WINAPI LdrShutdownProcess(void)
2310 {
2311 TRACE("()\n");
2312 process_detach( TRUE, (LPVOID)1 );
2313 }
2314
2315 /******************************************************************
2316 * LdrShutdownThread (NTDLL.@)
2317 *
2318 */
2319 void WINAPI LdrShutdownThread(void)
2320 {
2321 PLIST_ENTRY mark, entry;
2322 PLDR_MODULE mod;
2323
2324 TRACE("()\n");
2325
2326 /* don't do any detach calls if process is exiting */
2327 if (process_detaching) return;
2328 /* FIXME: there is still a race here */
2329
2330 RtlEnterCriticalSection( &loader_section );
2331
2332 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
2333 for (entry = mark->Blink; entry != mark; entry = entry->Blink)
2334 {
2335 mod = CONTAINING_RECORD(entry, LDR_MODULE,
2336 InInitializationOrderModuleList);
2337 if ( !(mod->Flags & LDR_PROCESS_ATTACHED) )
2338 continue;
2339 if ( mod->Flags & LDR_NO_DLL_CALLS )
2340 continue;
2341
2342 MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr),
2343 DLL_THREAD_DETACH, NULL );
2344 }
2345
2346 RtlLeaveCriticalSection( &loader_section );
2347 RtlFreeHeap( GetProcessHeap(), 0, NtCurrentTeb()->ThreadLocalStoragePointer );
2348 }
2349
2350
2351 /***********************************************************************
2352 * free_modref
2353 *
2354 */
2355 static void free_modref( WINE_MODREF *wm )
2356 {
2357 RemoveEntryList(&wm->ldr.InLoadOrderModuleList);
2358 RemoveEntryList(&wm->ldr.InMemoryOrderModuleList);
2359 if (wm->ldr.InInitializationOrderModuleList.Flink)
2360 RemoveEntryList(&wm->ldr.InInitializationOrderModuleList);
2361
2362 TRACE(" unloading %s\n", debugstr_w(wm->ldr.FullDllName.Buffer));
2363 if (!TRACE_ON(module))
2364 TRACE_(loaddll)("Unloaded module %s : %s\n",
2365 debugstr_w(wm->ldr.FullDllName.Buffer),
2366 (wm->ldr.Flags & LDR_WINE_INTERNAL) ? "builtin" : "native" );
2367
2368 SERVER_START_REQ( unload_dll )
2369 {
2370 req->base = wine_server_client_ptr( wm->ldr.BaseAddress );
2371 wine_server_call( req );
2372 }
2373 SERVER_END_REQ;
2374
2375 RtlReleaseActivationContext( wm->ldr.ActivationContext );
2376 NtUnmapViewOfSection( NtCurrentProcess(), wm->ldr.BaseAddress );
2377 if (wm->ldr.Flags & LDR_WINE_INTERNAL) wine_dll_unload( wm->ldr.SectionHandle );
2378 if (cached_modref == wm) cached_modref = NULL;
2379 RtlFreeUnicodeString( &wm->ldr.FullDllName );
2380 RtlFreeHeap( GetProcessHeap(), 0, wm->deps );
2381 RtlFreeHeap( GetProcessHeap(), 0, wm );
2382 }
2383
2384 /***********************************************************************
2385 * MODULE_FlushModrefs
2386 *
2387 * Remove all unused modrefs and call the internal unloading routines
2388 * for the library type.
2389 *
2390 * The loader_section must be locked while calling this function.
2391 */
2392 static void MODULE_FlushModrefs(void)
2393 {
2394 PLIST_ENTRY mark, entry, prev;
2395 PLDR_MODULE mod;
2396 WINE_MODREF*wm;
2397
2398 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
2399 for (entry = mark->Blink; entry != mark; entry = prev)
2400 {
2401 mod = CONTAINING_RECORD(entry, LDR_MODULE, InInitializationOrderModuleList);
2402 wm = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
2403 prev = entry->Blink;
2404 if (!mod->LoadCount) free_modref( wm );
2405 }
2406
2407 /* check load order list too for modules that haven't been initialized yet */
2408 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
2409 for (entry = mark->Blink; entry != mark; entry = prev)
2410 {
2411 mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
2412 wm = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
2413 prev = entry->Blink;
2414 if (!mod->LoadCount) free_modref( wm );
2415 }
2416 }
2417
2418 /***********************************************************************
2419 * MODULE_DecRefCount
2420 *
2421 * The loader_section must be locked while calling this function.
2422 */
2423 static void MODULE_DecRefCount( WINE_MODREF *wm )
2424 {
2425 int i;
2426
2427 if ( wm->ldr.Flags & LDR_UNLOAD_IN_PROGRESS )
2428 return;
2429
2430 if ( wm->ldr.LoadCount <= 0 )
2431 return;
2432
2433 --wm->ldr.LoadCount;
2434 TRACE("(%s) ldr.LoadCount: %d\n", debugstr_w(wm->ldr.BaseDllName.Buffer), wm->ldr.LoadCount );
2435
2436 if ( wm->ldr.LoadCount == 0 )
2437 {
2438 wm->ldr.Flags |= LDR_UNLOAD_IN_PROGRESS;
2439
2440 for ( i = 0; i < wm->nDeps; i++ )
2441 if ( wm->deps[i] )
2442 MODULE_DecRefCount( wm->deps[i] );
2443
2444 wm->ldr.Flags &= ~LDR_UNLOAD_IN_PROGRESS;
2445 }
2446 }
2447
2448 /******************************************************************
2449 * LdrUnloadDll (NTDLL.@)
2450 *
2451 *
2452 */
2453 NTSTATUS WINAPI LdrUnloadDll( HMODULE hModule )
2454 {
2455 NTSTATUS retv = STATUS_SUCCESS;
2456
2457 TRACE("(%p)\n", hModule);
2458
2459 RtlEnterCriticalSection( &loader_section );
2460
2461 /* if we're stopping the whole process (and forcing the removal of all
2462 * DLLs) the library will be freed anyway
2463 */
2464 if (!process_detaching)
2465 {
2466 WINE_MODREF *wm;
2467
2468 free_lib_count++;
2469 if ((wm = get_modref( hModule )) != NULL)
2470 {
2471 TRACE("(%s) - START\n", debugstr_w(wm->ldr.BaseDllName.Buffer));
2472
2473 /* Recursively decrement reference counts */
2474 MODULE_DecRefCount( wm );
2475
2476 /* Call process detach notifications */
2477 if ( free_lib_count <= 1 )
2478 {
2479 process_detach( FALSE, NULL );
2480 MODULE_FlushModrefs();
2481 }
2482
2483 TRACE("END\n");
2484 }
2485 else
2486 retv = STATUS_DLL_NOT_FOUND;
2487
2488 free_lib_count--;
2489 }
2490
2491 RtlLeaveCriticalSection( &loader_section );
2492
2493 return retv;
2494 }
2495
2496 /***********************************************************************
2497 * RtlImageNtHeader (NTDLL.@)
2498 */
2499 PIMAGE_NT_HEADERS WINAPI RtlImageNtHeader(HMODULE hModule)
2500 {
2501 IMAGE_NT_HEADERS *ret;
2502
2503 __TRY
2504 {
2505 IMAGE_DOS_HEADER *dos = (IMAGE_DOS_HEADER *)hModule;
2506
2507 ret = NULL;
2508 if (dos->e_magic == IMAGE_DOS_SIGNATURE)
2509 {
2510 ret = (IMAGE_NT_HEADERS *)((char *)dos + dos->e_lfanew);
2511 if (ret->Signature != IMAGE_NT_SIGNATURE) ret = NULL;
2512 }
2513 }
2514 __EXCEPT_PAGE_FAULT
2515 {
2516 return NULL;
2517 }
2518 __ENDTRY
2519 return ret;
2520 }
2521
2522
2523 /***********************************************************************
2524 * attach_process_dlls
2525 *
2526 * Initial attach to all the dlls loaded by the process.
2527 */
2528 static NTSTATUS attach_process_dlls( void *wm )
2529 {
2530 NTSTATUS status;
2531
2532 pthread_sigmask( SIG_UNBLOCK, &server_block_set, NULL );
2533
2534 RtlEnterCriticalSection( &loader_section );
2535 if ((status = process_attach( wm, (LPVOID)1 )) != STATUS_SUCCESS)
2536 {
2537 if (last_failed_modref)
2538 ERR( "%s failed to initialize, aborting\n",
2539 debugstr_w(last_failed_modref->ldr.BaseDllName.Buffer) + 1 );
2540 return status;
2541 }
2542 attach_implicitly_loaded_dlls( (LPVOID)1 );
2543 RtlLeaveCriticalSection( &loader_section );
2544 return status;
2545 }
2546
2547
2548 /***********************************************************************
2549 * load_global_options
2550 */
2551 static void load_global_options(void)
2552 {
2553 static const WCHAR sessionW[] = {'M','a','c','h','i','n','e','\\',
2554 'S','y','s','t','e','m','\\',
2555 'C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
2556 'C','o','n','t','r','o','l','\\',
2557 'S','e','s','s','i','o','n',' ','M','a','n','a','g','e','r',0};
2558 static const WCHAR globalflagW[] = {'G','l','o','b','a','l','F','l','a','g',0};
2559 static const WCHAR critsectW[] = {'C','r','i','t','i','c','a','l','S','e','c','t','i','o','n','T','i','m','e','o','u','t',0};
2560 static const WCHAR heapresW[] = {'H','e','a','p','S','e','g','m','e','n','t','R','e','s','e','r','v','e',0};
2561 static const WCHAR heapcommitW[] = {'H','e','a','p','S','e','g','m','e','n','t','C','o','m','m','i','t',0};
2562 static const WCHAR decommittotalW[] = {'H','e','a','p','D','e','C','o','m','m','i','t','T','o','t','a','l','F','r','e','e','T','h','r','e','s','h','o','l','d',0};
2563 static const WCHAR decommitfreeW[] = {'H','e','a','p','D','e','C','o','m','m','i','t','F','r','e','e','B','l','o','c','k','T','h','r','e','s','h','o','l','d',0};
2564
2565 OBJECT_ATTRIBUTES attr;
2566 UNICODE_STRING name_str;
2567 HANDLE hkey;
2568 ULONG value;
2569
2570 attr.Length = sizeof(attr);
2571 attr.RootDirectory = 0;
2572 attr.ObjectName = &name_str;
2573 attr.Attributes = OBJ_CASE_INSENSITIVE;
2574 attr.SecurityDescriptor = NULL;
2575 attr.SecurityQualityOfService = NULL;
2576 RtlInitUnicodeString( &name_str, sessionW );
2577
2578 if (NtOpenKey( &hkey, KEY_QUERY_VALUE, &attr )) return;
2579
2580 query_dword_option( hkey, globalflagW, &NtCurrentTeb()->Peb->NtGlobalFlag );
2581
2582 query_dword_option( hkey, critsectW, &value );
2583 NtCurrentTeb()->Peb->CriticalSectionTimeout.QuadPart = (ULONGLONG)value * -10000000;
2584
2585 query_dword_option( hkey, heapresW, &value );
2586 NtCurrentTeb()->Peb->HeapSegmentReserve = value;
2587
2588 query_dword_option( hkey, heapcommitW, &value );
2589 NtCurrentTeb()->Peb->HeapSegmentCommit = value;
2590
2591 query_dword_option( hkey, decommittotalW, &value );
2592 NtCurrentTeb()->Peb->HeapDeCommitTotalFreeThreshold = value;
2593
2594 query_dword_option( hkey, decommitfreeW, &value );
2595 NtCurrentTeb()->Peb->HeapDeCommitFreeBlockThreshold = value;
2596
2597 NtClose( hkey );
2598 }
2599
2600
2601 /***********************************************************************
2602 * start_process
2603 */
2604 static void start_process( void *kernel_start )
2605 {
2606 call_thread_entry_point( kernel_start, NtCurrentTeb()->Peb );
2607 }
2608
2609 /******************************************************************
2610 * LdrInitializeThunk (NTDLL.@)
2611 *
2612 */
2613 void WINAPI LdrInitializeThunk( void *kernel_start, ULONG_PTR unknown2,
2614 ULONG_PTR unknown3, ULONG_PTR unknown4 )
2615 {
2616 static const WCHAR globalflagW[] = {'G','l','o','b','a','l','F','l','a','g',0};
2617 NTSTATUS status;
2618 WINE_MODREF *wm;
2619 LPCWSTR load_path;
2620 PEB *peb = NtCurrentTeb()->Peb;
2621 IMAGE_NT_HEADERS *nt = RtlImageNtHeader( peb->ImageBaseAddress );
2622
2623 if (main_exe_file) NtClose( main_exe_file ); /* at this point the main module is created */
2624
2625 /* allocate the modref for the main exe (if not already done) */
2626 wm = get_modref( peb->ImageBaseAddress );
2627 assert( wm );
2628 if (wm->ldr.Flags & LDR_IMAGE_IS_DLL)
2629 {
2630 ERR("%s is a dll, not an executable\n", debugstr_w(wm->ldr.FullDllName.Buffer) );
2631 exit(1);
2632 }
2633
2634 peb->LoaderLock = &loader_section;
2635 peb->ProcessParameters->ImagePathName = wm->ldr.FullDllName;
2636 if (!peb->ProcessParameters->WindowTitle.Buffer)
2637 peb->ProcessParameters->WindowTitle = wm->ldr.FullDllName;
2638 version_init( wm->ldr.FullDllName.Buffer );
2639
2640 LdrQueryImageFileExecutionOptions( &peb->ProcessParameters->ImagePathName, globalflagW,
2641 REG_DWORD, &peb->NtGlobalFlag, sizeof(peb->NtGlobalFlag), NULL );
2642
2643 /* the main exe needs to be the first in the load order list */
2644 RemoveEntryList( &wm->ldr.InLoadOrderModuleList );
2645 InsertHeadList( &peb->LdrData->InLoadOrderModuleList, &wm->ldr.InLoadOrderModuleList );
2646
2647 if ((status = virtual_alloc_thread_stack( NtCurrentTeb(), 0, 0 )) != STATUS_SUCCESS) goto error;
2648 if ((status = server_init_process_done()) != STATUS_SUCCESS) goto error;
2649
2650 actctx_init();
2651 load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
2652 if ((status = fixup_imports( wm, load_path )) != STATUS_SUCCESS) goto error;
2653 if ((status = alloc_process_tls()) != STATUS_SUCCESS) goto error;
2654 if ((status = alloc_thread_tls()) != STATUS_SUCCESS) goto error;
2655 heap_set_debug_flags( GetProcessHeap() );
2656
2657 status = wine_call_on_stack( attach_process_dlls, wm, NtCurrentTeb()->Tib.StackBase );
2658 if (status != STATUS_SUCCESS) goto error;
2659
2660 virtual_release_address_space( nt->FileHeader.Characteristics & IMAGE_FILE_LARGE_ADDRESS_AWARE );
2661 virtual_clear_thread_stack();
2662 wine_switch_to_stack( start_process, kernel_start, NtCurrentTeb()->Tib.StackBase );
2663
2664 error:
2665 ERR( "Main exe initialization for %s failed, status %x\n",
2666 debugstr_w(peb->ProcessParameters->ImagePathName.Buffer), status );
2667 NtTerminateProcess( GetCurrentProcess(), status );
2668 }
2669
2670
2671 /***********************************************************************
2672 * RtlImageDirectoryEntryToData (NTDLL.@)
2673 */
2674 PVOID WINAPI RtlImageDirectoryEntryToData( HMODULE module, BOOL image, WORD dir, ULONG *size )
2675 {
2676 const IMAGE_NT_HEADERS *nt;
2677 DWORD addr;
2678
2679 if ((ULONG_PTR)module & 1) /* mapped as data file */
2680 {
2681 module = (HMODULE)((ULONG_PTR)module & ~1);
2682 image = FALSE;
2683 }
2684 if (!(nt = RtlImageNtHeader( module ))) return NULL;
2685 if (nt->OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR64_MAGIC)
2686 {
2687 const IMAGE_NT_HEADERS64 *nt64 = (const IMAGE_NT_HEADERS64 *)nt;
2688
2689 if (dir >= nt64->OptionalHeader.NumberOfRvaAndSizes) return NULL;
2690 if (!(addr = nt64->OptionalHeader.DataDirectory[dir].VirtualAddress)) return NULL;
2691 *size = nt64->OptionalHeader.DataDirectory[dir].Size;
2692 if (image || addr < nt64->OptionalHeader.SizeOfHeaders) return (char *)module + addr;
2693 }
2694 else if (nt->OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR32_MAGIC)
2695 {
2696 const IMAGE_NT_HEADERS32 *nt32 = (const IMAGE_NT_HEADERS32 *)nt;
2697
2698 if (dir >= nt32->OptionalHeader.NumberOfRvaAndSizes) return NULL;
2699 if (!(addr = nt32->OptionalHeader.DataDirectory[dir].VirtualAddress)) return NULL;
2700 *size = nt32->OptionalHeader.DataDirectory[dir].Size;
2701 if (image || addr < nt32->OptionalHeader.SizeOfHeaders) return (char *)module + addr;
2702 }
2703 else return NULL;
2704
2705 /* not mapped as image, need to find the section containing the virtual address */
2706 return RtlImageRvaToVa( nt, module, addr, NULL );
2707 }
2708
2709
2710 /***********************************************************************
2711 * RtlImageRvaToSection (NTDLL.@)
2712 */
2713 PIMAGE_SECTION_HEADER WINAPI RtlImageRvaToSection( const IMAGE_NT_HEADERS *nt,
2714 HMODULE module, DWORD rva )
2715 {
2716 int i;
2717 const IMAGE_SECTION_HEADER *sec;
2718
2719 sec = (const IMAGE_SECTION_HEADER*)((const char*)&nt->OptionalHeader +
2720 nt->FileHeader.SizeOfOptionalHeader);
2721 for (i = 0; i < nt->FileHeader.NumberOfSections; i++, sec++)
2722 {
2723 if ((sec->VirtualAddress <= rva) && (sec->VirtualAddress + sec->SizeOfRawData > rva))
2724 return (PIMAGE_SECTION_HEADER)sec;
2725 }
2726 return NULL;
2727 }
2728
2729
2730 /***********************************************************************
2731 * RtlImageRvaToVa (NTDLL.@)
2732 */
2733 PVOID WINAPI RtlImageRvaToVa( const IMAGE_NT_HEADERS *nt, HMODULE module,
2734 DWORD rva, IMAGE_SECTION_HEADER **section )
2735 {
2736 IMAGE_SECTION_HEADER *sec;
2737
2738 if (section && *section) /* try this section first */
2739 {
2740 sec = *section;
2741 if ((sec->VirtualAddress <= rva) && (sec->VirtualAddress + sec->SizeOfRawData > rva))
2742 goto found;
2743 }
2744 if (!(sec = RtlImageRvaToSection( nt, module, rva ))) return NULL;
2745 found:
2746 if (section) *section = sec;
2747 return (char *)module + sec->PointerToRawData + (rva - sec->VirtualAddress);
2748 }
2749
2750
2751 /***********************************************************************
2752 * RtlPcToFileHeader (NTDLL.@)
2753 */
2754 PVOID WINAPI RtlPcToFileHeader( PVOID pc, PVOID *address )
2755 {
2756 LDR_MODULE *module;
2757 PVOID ret = NULL;
2758
2759 RtlEnterCriticalSection( &loader_section );
2760 if (!LdrFindEntryForAddress( pc, &module )) ret = module->BaseAddress;
2761 RtlLeaveCriticalSection( &loader_section );
2762 *address = ret;
2763 return ret;
2764 }
2765
2766
2767 /***********************************************************************
2768 * NtLoadDriver (NTDLL.@)
2769 * ZwLoadDriver (NTDLL.@)
2770 */
2771 NTSTATUS WINAPI NtLoadDriver( const UNICODE_STRING *DriverServiceName )
2772 {
2773 FIXME("(%p), stub!\n",DriverServiceName);
2774 return STATUS_NOT_IMPLEMENTED;
2775 }
2776
2777
2778 /***********************************************************************
2779 * NtUnloadDriver (NTDLL.@)
2780 * ZwUnloadDriver (NTDLL.@)
2781 */
2782 NTSTATUS WINAPI NtUnloadDriver( const UNICODE_STRING *DriverServiceName )
2783 {
2784 FIXME("(%p), stub!\n",DriverServiceName);
2785 return STATUS_NOT_IMPLEMENTED;
2786 }
2787
2788
2789 /******************************************************************
2790 * DllMain (NTDLL.@)
2791 */
2792 BOOL WINAPI DllMain( HINSTANCE inst, DWORD reason, LPVOID reserved )
2793 {
2794 if (reason == DLL_PROCESS_ATTACH) LdrDisableThreadCalloutsForDll( inst );
2795 return TRUE;
2796 }
2797
2798
2799 /******************************************************************
2800 * __wine_init_windows_dir (NTDLL.@)
2801 *
2802 * Windows and system dir initialization once kernel32 has been loaded.
2803 */
2804 void CDECL __wine_init_windows_dir( const WCHAR *windir, const WCHAR *sysdir )
2805 {
2806 PLIST_ENTRY mark, entry;
2807 LPWSTR buffer, p;
2808
2809 DIR_init_windows_dir( windir, sysdir );
2810 strcpyW( user_shared_data->NtSystemRoot, windir );
2811
2812 /* prepend the system dir to the name of the already created modules */
2813 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
2814 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
2815 {
2816 LDR_MODULE *mod = CONTAINING_RECORD( entry, LDR_MODULE, InLoadOrderModuleList );
2817
2818 assert( mod->Flags & LDR_WINE_INTERNAL );
2819
2820 buffer = RtlAllocateHeap( GetProcessHeap(), 0,
2821 system_dir.Length + mod->FullDllName.Length + 2*sizeof(WCHAR) );
2822 if (!buffer) continue;
2823 strcpyW( buffer, system_dir.Buffer );
2824 p = buffer + strlenW( buffer );
2825 if (p > buffer && p[-1] != '\\') *p++ = '\\';
2826 strcpyW( p, mod->FullDllName.Buffer );
2827 RtlInitUnicodeString( &mod->FullDllName, buffer );
2828 RtlInitUnicodeString( &mod->BaseDllName, p );
2829 }
2830 }
2831
2832
2833 /***********************************************************************
2834 * __wine_process_init
2835 */
2836 void __wine_process_init(void)
2837 {
2838 static const WCHAR kernel32W[] = {'k','e','r','n','e','l','3','2','.','d','l','l',0};
2839
2840 WINE_MODREF *wm;
2841 NTSTATUS status;
2842 ANSI_STRING func_name;
2843 void (* DECLSPEC_NORETURN CDECL init_func)(void);
2844 extern mode_t FILE_umask;
2845
2846 main_exe_file = thread_init();
2847
2848 /* retrieve current umask */
2849 FILE_umask = umask(0777);
2850 umask( FILE_umask );
2851
2852 load_global_options();
2853
2854 /* setup the load callback and create ntdll modref */
2855 wine_dll_set_callback( load_builtin_callback );
2856
2857 if ((status = load_builtin_dll( NULL, kernel32W, 0, 0, &wm )) != STATUS_SUCCESS)
2858 {
2859 MESSAGE( "wine: could not load kernel32.dll, status %x\n", status );
2860 exit(1);
2861 }
2862 RtlInitAnsiString( &func_name, "UnhandledExceptionFilter" );
2863 LdrGetProcedureAddress( wm->ldr.BaseAddress, &func_name, 0, (void **)&unhandled_exception_filter );
2864
2865 RtlInitAnsiString( &func_name, "__wine_kernel_init" );
2866 if ((status = LdrGetProcedureAddress( wm->ldr.BaseAddress, &func_name,
2867 0, (void **)&init_func )) != STATUS_SUCCESS)
2868 {
2869 MESSAGE( "wine: could not find __wine_kernel_init in kernel32.dll, status %x\n", status );
2870 exit(1);
2871 }
2872 init_func();
2873 }
Maarten's multimedia branch