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ntdll: Call pthread_sigmask directly instead of through the pthread function table.
[wine/hacks.git] / dlls / ntdll / loader.c
blobc7fd2674d475b097defaa29398a6f136023547a9
1 /*
2 * Loader functions
3 *
4 * Copyright 1995, 2003 Alexandre Julliard
5 * Copyright 2002 Dmitry Timoshkov for CodeWeavers
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
20 */
21
22 #include "config.h"
23 #include "wine/port.h"
24
25 #include <assert.h>
26 #include <stdarg.h>
27 #ifdef HAVE_SYS_MMAN_H
28 # include <sys/mman.h>
29 #endif
30
31 #define NONAMELESSUNION
32 #define NONAMELESSSTRUCT
33
34 #include "ntstatus.h"
35 #define WIN32_NO_STATUS
36 #include "windef.h"
37 #include "winnt.h"
38 #include "winternl.h"
39
40 #include "wine/exception.h"
41 #include "wine/library.h"
42 #include "wine/unicode.h"
43 #include "wine/debug.h"
44 #include "wine/server.h"
45 #include "ntdll_misc.h"
46 #include "ddk/wdm.h"
47
48 WINE_DEFAULT_DEBUG_CHANNEL(module);
49 WINE_DECLARE_DEBUG_CHANNEL(relay);
50 WINE_DECLARE_DEBUG_CHANNEL(snoop);
51 WINE_DECLARE_DEBUG_CHANNEL(loaddll);
52 WINE_DECLARE_DEBUG_CHANNEL(imports);
53
54 /* we don't want to include winuser.h */
55 #define RT_MANIFEST ((ULONG_PTR)24)
56 #define ISOLATIONAWARE_MANIFEST_RESOURCE_ID ((ULONG_PTR)2)
57
58 typedef DWORD (CALLBACK *DLLENTRYPROC)(HMODULE,DWORD,LPVOID);
59
60 static int process_detaching = 0; /* set on process detach to avoid deadlocks with thread detach */
61 static int free_lib_count; /* recursion depth of LdrUnloadDll calls */
62
63 static const char * const reason_names[] =
64 {
65 "PROCESS_DETACH",
66 "PROCESS_ATTACH",
67 "THREAD_ATTACH",
68 "THREAD_DETACH",
69 NULL, NULL, NULL, NULL,
70 "WINE_PREATTACH"
71 };
72
73 static const WCHAR dllW[] = {'.','d','l','l',0};
74
75 /* internal representation of 32bit modules. per process. */
76 typedef struct _wine_modref
77 {
78 LDR_MODULE ldr;
79 int nDeps;
80 struct _wine_modref **deps;
81 } WINE_MODREF;
82
83 /* info about the current builtin dll load */
84 /* used to keep track of things across the register_dll constructor call */
85 struct builtin_load_info
86 {
87 const WCHAR *load_path;
88 const WCHAR *filename;
89 NTSTATUS status;
90 WINE_MODREF *wm;
91 };
92
93 static struct builtin_load_info default_load_info;
94 static struct builtin_load_info *builtin_load_info = &default_load_info;
95
96 static HANDLE main_exe_file;
97 static UINT tls_module_count; /* number of modules with TLS directory */
98 static UINT tls_total_size; /* total size of TLS storage */
99 static const IMAGE_TLS_DIRECTORY **tls_dirs; /* array of TLS directories */
100
101 UNICODE_STRING windows_dir = { 0, 0, NULL }; /* windows directory */
102 UNICODE_STRING system_dir = { 0, 0, NULL }; /* system directory */
103
104 static RTL_CRITICAL_SECTION loader_section;
105 static RTL_CRITICAL_SECTION_DEBUG critsect_debug =
106 {
107 0, 0, &loader_section,
108 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
109 0, 0, { (DWORD_PTR)(__FILE__ ": loader_section") }
110 };
111 static RTL_CRITICAL_SECTION loader_section = { &critsect_debug, -1, 0, 0, 0, 0 };
112
113 static WINE_MODREF *cached_modref;
114 static WINE_MODREF *current_modref;
115 static WINE_MODREF *last_failed_modref;
116
117 static NTSTATUS load_dll( LPCWSTR load_path, LPCWSTR libname, DWORD flags, WINE_MODREF** pwm );
118 static NTSTATUS process_attach( WINE_MODREF *wm, LPVOID lpReserved );
119 static FARPROC find_named_export( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports,
120 DWORD exp_size, const char *name, int hint, LPCWSTR load_path );
121
122 /* convert PE image VirtualAddress to Real Address */
123 static inline void *get_rva( HMODULE module, DWORD va )
124 {
125 return (void *)((char *)module + va);
126 }
127
128 /* check whether the file name contains a path */
129 static inline int contains_path( LPCWSTR name )
130 {
131 return ((*name && (name[1] == ':')) || strchrW(name, '/') || strchrW(name, '\\'));
132 }
133
134 /* convert from straight ASCII to Unicode without depending on the current codepage */
135 static inline void ascii_to_unicode( WCHAR *dst, const char *src, size_t len )
136 {
137 while (len--) *dst++ = (unsigned char)*src++;
138 }
139
140
141 /*************************************************************************
142 * call_dll_entry_point
143 *
144 * Some brain-damaged dlls (ir32_32.dll for instance) modify ebx in
145 * their entry point, so we need a small asm wrapper.
146 */
147 #ifdef __i386__
148 extern BOOL call_dll_entry_point( DLLENTRYPROC proc, void *module, UINT reason, void *reserved );
149 __ASM_GLOBAL_FUNC(call_dll_entry_point,
150 "pushl %ebp\n\t"
151 "movl %esp,%ebp\n\t"
152 "pushl %ebx\n\t"
153 "subl $8,%esp\n\t"
154 "pushl 20(%ebp)\n\t"
155 "pushl 16(%ebp)\n\t"
156 "pushl 12(%ebp)\n\t"
157 "movl 8(%ebp),%eax\n\t"
158 "call *%eax\n\t"
159 "leal -4(%ebp),%esp\n\t"
160 "popl %ebx\n\t"
161 "popl %ebp\n\t"
162 "ret" )
163 #else /* __i386__ */
164 static inline BOOL call_dll_entry_point( DLLENTRYPROC proc, void *module,
165 UINT reason, void *reserved )
166 {
167 return proc( module, reason, reserved );
168 }
169 #endif /* __i386__ */
170
171
172 #if defined(__i386__) || defined(__x86_64__)
173 /*************************************************************************
174 * stub_entry_point
175 *
176 * Entry point for stub functions.
177 */
178 static void stub_entry_point( const char *dll, const char *name, void *ret_addr )
179 {
180 EXCEPTION_RECORD rec;
181
182 rec.ExceptionCode = EXCEPTION_WINE_STUB;
183 rec.ExceptionFlags = EH_NONCONTINUABLE;
184 rec.ExceptionRecord = NULL;
185 rec.ExceptionAddress = ret_addr;
186 rec.NumberParameters = 2;
187 rec.ExceptionInformation[0] = (ULONG_PTR)dll;
188 rec.ExceptionInformation[1] = (ULONG_PTR)name;
189 for (;;) RtlRaiseException( &rec );
190 }
191
192
193 #include "pshpack1.h"
194 #ifdef __i386__
195 struct stub
196 {
197 BYTE pushl1; /* pushl $name */
198 const char *name;
199 BYTE pushl2; /* pushl $dll */
200 const char *dll;
201 BYTE call; /* call stub_entry_point */
202 DWORD entry;
203 };
204 #else
205 struct stub
206 {
207 BYTE movq_rdi[2]; /* movq $dll,%rdi */
208 const char *dll;
209 BYTE movq_rsi[2]; /* movq $name,%rsi */
210 const char *name;
211 BYTE movq_rsp_rdx[4]; /* movq (%rsp),%rdx */
212 BYTE movq_rax[2]; /* movq $entry, %rax */
213 const void* entry;
214 BYTE jmpq_rax[2]; /* jmp %rax */
215 };
216 #endif
217 #include "poppack.h"
218
219 /*************************************************************************
220 * allocate_stub
221 *
222 * Allocate a stub entry point.
223 */
224 static ULONG_PTR allocate_stub( const char *dll, const char *name )
225 {
226 #define MAX_SIZE 65536
227 static struct stub *stubs;
228 static unsigned int nb_stubs;
229 struct stub *stub;
230
231 if (nb_stubs >= MAX_SIZE / sizeof(*stub)) return 0xdeadbeef;
232
233 if (!stubs)
234 {
235 SIZE_T size = MAX_SIZE;
236 if (NtAllocateVirtualMemory( NtCurrentProcess(), (void **)&stubs, 0, &size,
237 MEM_COMMIT, PAGE_EXECUTE_WRITECOPY ) != STATUS_SUCCESS)
238 return 0xdeadbeef;
239 }
240 stub = &stubs[nb_stubs++];
241 #ifdef __i386__
242 stub->pushl1 = 0x68; /* pushl $name */
243 stub->name = name;
244 stub->pushl2 = 0x68; /* pushl $dll */
245 stub->dll = dll;
246 stub->call = 0xe8; /* call stub_entry_point */
247 stub->entry = (BYTE *)stub_entry_point - (BYTE *)(&stub->entry + 1);
248 #else
249 stub->movq_rdi[0] = 0x48; /* movq $dll,%rdi */
250 stub->movq_rdi[1] = 0xbf;
251 stub->dll = dll;
252 stub->movq_rsi[0] = 0x48; /* movq $name,%rsi */
253 stub->movq_rsi[1] = 0xbe;
254 stub->name = name;
255 stub->movq_rsp_rdx[0] = 0x48; /* movq (%rsp),%rdx */
256 stub->movq_rsp_rdx[1] = 0x8b;
257 stub->movq_rsp_rdx[2] = 0x14;
258 stub->movq_rsp_rdx[3] = 0x24;
259 stub->movq_rax[0] = 0x48; /* movq $entry, %rax */
260 stub->movq_rax[1] = 0xb8;
261 stub->entry = stub_entry_point;
262 stub->jmpq_rax[0] = 0xff; /* jmp %rax */
263 stub->jmpq_rax[1] = 0xe0;
264 #endif
265 return (ULONG_PTR)stub;
266 }
267
268 #else /* __i386__ */
269 static inline ULONG_PTR allocate_stub( const char *dll, const char *name ) { return 0xdeadbeef; }
270 #endif /* __i386__ */
271
272
273 /*************************************************************************
274 * get_modref
275 *
276 * Looks for the referenced HMODULE in the current process
277 * The loader_section must be locked while calling this function.
278 */
279 static WINE_MODREF *get_modref( HMODULE hmod )
280 {
281 PLIST_ENTRY mark, entry;
282 PLDR_MODULE mod;
283
284 if (cached_modref && cached_modref->ldr.BaseAddress == hmod) return cached_modref;
285
286 mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
287 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
288 {
289 mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
290 if (mod->BaseAddress == hmod)
291 return cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
292 if (mod->BaseAddress > (void*)hmod) break;
293 }
294 return NULL;
295 }
296
297
298 /**********************************************************************
299 * find_basename_module
300 *
301 * Find a module from its base name.
302 * The loader_section must be locked while calling this function
303 */
304 static WINE_MODREF *find_basename_module( LPCWSTR name )
305 {
306 PLIST_ENTRY mark, entry;
307
308 if (cached_modref && !strcmpiW( name, cached_modref->ldr.BaseDllName.Buffer ))
309 return cached_modref;
310
311 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
312 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
313 {
314 LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
315 if (!strcmpiW( name, mod->BaseDllName.Buffer ))
316 {
317 cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
318 return cached_modref;
319 }
320 }
321 return NULL;
322 }
323
324
325 /**********************************************************************
326 * find_fullname_module
327 *
328 * Find a module from its full path name.
329 * The loader_section must be locked while calling this function
330 */
331 static WINE_MODREF *find_fullname_module( LPCWSTR name )
332 {
333 PLIST_ENTRY mark, entry;
334
335 if (cached_modref && !strcmpiW( name, cached_modref->ldr.FullDllName.Buffer ))
336 return cached_modref;
337
338 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
339 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
340 {
341 LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
342 if (!strcmpiW( name, mod->FullDllName.Buffer ))
343 {
344 cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
345 return cached_modref;
346 }
347 }
348 return NULL;
349 }
350
351
352 /*************************************************************************
353 * find_forwarded_export
354 *
355 * Find the final function pointer for a forwarded function.
356 * The loader_section must be locked while calling this function.
357 */
358 static FARPROC find_forwarded_export( HMODULE module, const char *forward, LPCWSTR load_path )
359 {
360 const IMAGE_EXPORT_DIRECTORY *exports;
361 DWORD exp_size;
362 WINE_MODREF *wm;
363 WCHAR mod_name[32];
364 const char *end = strrchr(forward, '.');
365 FARPROC proc = NULL;
366
367 if (!end) return NULL;
368 if ((end - forward) * sizeof(WCHAR) >= sizeof(mod_name)) return NULL;
369 ascii_to_unicode( mod_name, forward, end - forward );
370 mod_name[end - forward] = 0;
371 if (!strchrW( mod_name, '.' ))
372 {
373 if ((end - forward) * sizeof(WCHAR) >= sizeof(mod_name) - sizeof(dllW)) return NULL;
374 memcpy( mod_name + (end - forward), dllW, sizeof(dllW) );
375 }
376
377 if (!(wm = find_basename_module( mod_name )))
378 {
379 TRACE( "delay loading %s for '%s'\n", debugstr_w(mod_name), forward );
380 if (load_dll( load_path, mod_name, 0, &wm ) == STATUS_SUCCESS &&
381 !(wm->ldr.Flags & LDR_DONT_RESOLVE_REFS))
382 {
383 if (process_attach( wm, NULL ) != STATUS_SUCCESS)
384 {
385 LdrUnloadDll( wm->ldr.BaseAddress );
386 wm = NULL;
387 }
388 }
389
390 if (!wm)
391 {
392 ERR( "module not found for forward '%s' used by %s\n",
393 forward, debugstr_w(get_modref(module)->ldr.FullDllName.Buffer) );
394 return NULL;
395 }
396 }
397 if ((exports = RtlImageDirectoryEntryToData( wm->ldr.BaseAddress, TRUE,
398 IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size )))
399 proc = find_named_export( wm->ldr.BaseAddress, exports, exp_size, end + 1, -1, load_path );
400
401 if (!proc)
402 {
403 ERR("function not found for forward '%s' used by %s."
404 " If you are using builtin %s, try using the native one instead.\n",
405 forward, debugstr_w(get_modref(module)->ldr.FullDllName.Buffer),
406 debugstr_w(get_modref(module)->ldr.BaseDllName.Buffer) );
407 }
408 return proc;
409 }
410
411
412 /*************************************************************************
413 * find_ordinal_export
414 *
415 * Find an exported function by ordinal.
416 * The exports base must have been subtracted from the ordinal already.
417 * The loader_section must be locked while calling this function.
418 */
419 static FARPROC find_ordinal_export( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports,
420 DWORD exp_size, DWORD ordinal, LPCWSTR load_path )
421 {
422 FARPROC proc;
423 const DWORD *functions = get_rva( module, exports->AddressOfFunctions );
424
425 if (ordinal >= exports->NumberOfFunctions)
426 {
427 TRACE(" ordinal %d out of range!\n", ordinal + exports->Base );
428 return NULL;
429 }
430 if (!functions[ordinal]) return NULL;
431
432 proc = get_rva( module, functions[ordinal] );
433
434 /* if the address falls into the export dir, it's a forward */
435 if (((const char *)proc >= (const char *)exports) &&
436 ((const char *)proc < (const char *)exports + exp_size))
437 return find_forwarded_export( module, (const char *)proc, load_path );
438
439 if (TRACE_ON(snoop))
440 {
441 const WCHAR *user = current_modref ? current_modref->ldr.BaseDllName.Buffer : NULL;
442 proc = SNOOP_GetProcAddress( module, exports, exp_size, proc, ordinal, user );
443 }
444 if (TRACE_ON(relay))
445 {
446 const WCHAR *user = current_modref ? current_modref->ldr.BaseDllName.Buffer : NULL;
447 proc = RELAY_GetProcAddress( module, exports, exp_size, proc, ordinal, user );
448 }
449 return proc;
450 }
451
452
453 /*************************************************************************
454 * find_named_export
455 *
456 * Find an exported function by name.
457 * The loader_section must be locked while calling this function.
458 */
459 static FARPROC find_named_export( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports,
460 DWORD exp_size, const char *name, int hint, LPCWSTR load_path )
461 {
462 const WORD *ordinals = get_rva( module, exports->AddressOfNameOrdinals );
463 const DWORD *names = get_rva( module, exports->AddressOfNames );
464 int min = 0, max = exports->NumberOfNames - 1;
465
466 /* first check the hint */
467 if (hint >= 0 && hint <= max)
468 {
469 char *ename = get_rva( module, names[hint] );
470 if (!strcmp( ename, name ))
471 return find_ordinal_export( module, exports, exp_size, ordinals[hint], load_path );
472 }
473
474 /* then do a binary search */
475 while (min <= max)
476 {
477 int res, pos = (min + max) / 2;
478 char *ename = get_rva( module, names[pos] );
479 if (!(res = strcmp( ename, name )))
480 return find_ordinal_export( module, exports, exp_size, ordinals[pos], load_path );
481 if (res > 0) max = pos - 1;
482 else min = pos + 1;
483 }
484 return NULL;
485
486 }
487
488
489 /*************************************************************************
490 * import_dll
491 *
492 * Import the dll specified by the given import descriptor.
493 * The loader_section must be locked while calling this function.
494 */
495 static WINE_MODREF *import_dll( HMODULE module, const IMAGE_IMPORT_DESCRIPTOR *descr, LPCWSTR load_path )
496 {
497 NTSTATUS status;
498 WINE_MODREF *wmImp;
499 HMODULE imp_mod;
500 const IMAGE_EXPORT_DIRECTORY *exports;
501 DWORD exp_size;
502 const IMAGE_THUNK_DATA *import_list;
503 IMAGE_THUNK_DATA *thunk_list;
504 WCHAR buffer[32];
505 const char *name = get_rva( module, descr->Name );
506 DWORD len = strlen(name);
507 PVOID protect_base;
508 SIZE_T protect_size = 0;
509 DWORD protect_old;
510
511 thunk_list = get_rva( module, (DWORD)descr->FirstThunk );
512 if (descr->u.OriginalFirstThunk)
513 import_list = get_rva( module, (DWORD)descr->u.OriginalFirstThunk );
514 else
515 import_list = thunk_list;
516
517 while (len && name[len-1] == ' ') len--; /* remove trailing spaces */
518
519 if (len * sizeof(WCHAR) < sizeof(buffer))
520 {
521 ascii_to_unicode( buffer, name, len );
522 buffer[len] = 0;
523 status = load_dll( load_path, buffer, 0, &wmImp );
524 }
525 else /* need to allocate a larger buffer */
526 {
527 WCHAR *ptr = RtlAllocateHeap( GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR) );
528 if (!ptr) return NULL;
529 ascii_to_unicode( ptr, name, len );
530 ptr[len] = 0;
531 status = load_dll( load_path, ptr, 0, &wmImp );
532 RtlFreeHeap( GetProcessHeap(), 0, ptr );
533 }
534
535 if (status)
536 {
537 if (status == STATUS_DLL_NOT_FOUND)
538 ERR("Library %s (which is needed by %s) not found\n",
539 name, debugstr_w(current_modref->ldr.FullDllName.Buffer));
540 else
541 ERR("Loading library %s (which is needed by %s) failed (error %x).\n",
542 name, debugstr_w(current_modref->ldr.FullDllName.Buffer), status);
543 return NULL;
544 }
545
546 /* unprotect the import address table since it can be located in
547 * readonly section */
548 while (import_list[protect_size].u1.Ordinal) protect_size++;
549 protect_base = thunk_list;
550 protect_size *= sizeof(*thunk_list);
551 NtProtectVirtualMemory( NtCurrentProcess(), &protect_base,
552 &protect_size, PAGE_WRITECOPY, &protect_old );
553
554 imp_mod = wmImp->ldr.BaseAddress;
555 exports = RtlImageDirectoryEntryToData( imp_mod, TRUE, IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size );
556
557 if (!exports)
558 {
559 /* set all imported function to deadbeef */
560 while (import_list->u1.Ordinal)
561 {
562 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal))
563 {
564 int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
565 WARN("No implementation for %s.%d", name, ordinal );
566 thunk_list->u1.Function = allocate_stub( name, IntToPtr(ordinal) );
567 }
568 else
569 {
570 IMAGE_IMPORT_BY_NAME *pe_name = get_rva( module, (DWORD)import_list->u1.AddressOfData );
571 WARN("No implementation for %s.%s", name, pe_name->Name );
572 thunk_list->u1.Function = allocate_stub( name, (const char*)pe_name->Name );
573 }
574 WARN(" imported from %s, allocating stub %p\n",
575 debugstr_w(current_modref->ldr.FullDllName.Buffer),
576 (void *)thunk_list->u1.Function );
577 import_list++;
578 thunk_list++;
579 }
580 goto done;
581 }
582
583 while (import_list->u1.Ordinal)
584 {
585 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal))
586 {
587 int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
588
589 thunk_list->u1.Function = (ULONG_PTR)find_ordinal_export( imp_mod, exports, exp_size,
590 ordinal - exports->Base, load_path );
591 if (!thunk_list->u1.Function)
592 {
593 thunk_list->u1.Function = allocate_stub( name, IntToPtr(ordinal) );
594 WARN("No implementation for %s.%d imported from %s, setting to %p\n",
595 name, ordinal, debugstr_w(current_modref->ldr.FullDllName.Buffer),
596 (void *)thunk_list->u1.Function );
597 }
598 TRACE_(imports)("--- Ordinal %s.%d = %p\n", name, ordinal, (void *)thunk_list->u1.Function );
599 }
600 else /* import by name */
601 {
602 IMAGE_IMPORT_BY_NAME *pe_name;
603 pe_name = get_rva( module, (DWORD)import_list->u1.AddressOfData );
604 thunk_list->u1.Function = (ULONG_PTR)find_named_export( imp_mod, exports, exp_size,
605 (const char*)pe_name->Name,
606 pe_name->Hint, load_path );
607 if (!thunk_list->u1.Function)
608 {
609 thunk_list->u1.Function = allocate_stub( name, (const char*)pe_name->Name );
610 WARN("No implementation for %s.%s imported from %s, setting to %p\n",
611 name, pe_name->Name, debugstr_w(current_modref->ldr.FullDllName.Buffer),
612 (void *)thunk_list->u1.Function );
613 }
614 TRACE_(imports)("--- %s %s.%d = %p\n",
615 pe_name->Name, name, pe_name->Hint, (void *)thunk_list->u1.Function);
616 }
617 import_list++;
618 thunk_list++;
619 }
620
621 done:
622 /* restore old protection of the import address table */
623 NtProtectVirtualMemory( NtCurrentProcess(), &protect_base, &protect_size, protect_old, NULL );
624 return wmImp;
625 }
626
627
628 /***********************************************************************
629 * create_module_activation_context
630 */
631 static NTSTATUS create_module_activation_context( LDR_MODULE *module )
632 {
633 NTSTATUS status;
634 LDR_RESOURCE_INFO info;
635 const IMAGE_RESOURCE_DATA_ENTRY *entry;
636
637 info.Type = RT_MANIFEST;
638 info.Name = ISOLATIONAWARE_MANIFEST_RESOURCE_ID;
639 info.Language = 0;
640 if (!(status = LdrFindResource_U( module->BaseAddress, &info, 3, &entry )))
641 {
642 ACTCTXW ctx;
643 ctx.cbSize = sizeof(ctx);
644 ctx.lpSource = NULL;
645 ctx.dwFlags = ACTCTX_FLAG_RESOURCE_NAME_VALID | ACTCTX_FLAG_HMODULE_VALID;
646 ctx.hModule = module->BaseAddress;
647 ctx.lpResourceName = (LPCWSTR)ISOLATIONAWARE_MANIFEST_RESOURCE_ID;
648 status = RtlCreateActivationContext( &module->ActivationContext, &ctx );
649 }
650 return status;
651 }
652
653
654 /****************************************************************
655 * fixup_imports
656 *
657 * Fixup all imports of a given module.
658 * The loader_section must be locked while calling this function.
659 */
660 static NTSTATUS fixup_imports( WINE_MODREF *wm, LPCWSTR load_path )
661 {
662 int i, nb_imports;
663 const IMAGE_IMPORT_DESCRIPTOR *imports;
664 WINE_MODREF *prev;
665 DWORD size;
666 NTSTATUS status;
667 ULONG_PTR cookie;
668
669 if (!(wm->ldr.Flags & LDR_DONT_RESOLVE_REFS)) return STATUS_SUCCESS; /* already done */
670 wm->ldr.Flags &= ~LDR_DONT_RESOLVE_REFS;
671
672 if (!(imports = RtlImageDirectoryEntryToData( wm->ldr.BaseAddress, TRUE,
673 IMAGE_DIRECTORY_ENTRY_IMPORT, &size )))
674 return STATUS_SUCCESS;
675
676 nb_imports = 0;
677 while (imports[nb_imports].Name && imports[nb_imports].FirstThunk) nb_imports++;
678
679 if (!nb_imports) return STATUS_SUCCESS; /* no imports */
680
681 if (!create_module_activation_context( &wm->ldr ))
682 RtlActivateActivationContext( 0, wm->ldr.ActivationContext, &cookie );
683
684 /* Allocate module dependency list */
685 wm->nDeps = nb_imports;
686 wm->deps = RtlAllocateHeap( GetProcessHeap(), 0, nb_imports*sizeof(WINE_MODREF *) );
687
688 /* load the imported modules. They are automatically
689 * added to the modref list of the process.
690 */
691 prev = current_modref;
692 current_modref = wm;
693 status = STATUS_SUCCESS;
694 for (i = 0; i < nb_imports; i++)
695 {
696 if (!(wm->deps[i] = import_dll( wm->ldr.BaseAddress, &imports[i], load_path )))
697 status = STATUS_DLL_NOT_FOUND;
698 }
699 current_modref = prev;
700 if (wm->ldr.ActivationContext) RtlDeactivateActivationContext( 0, cookie );
701 return status;
702 }
703
704
705 /*************************************************************************
706 * is_dll_native_subsystem
707 *
708 * Check if dll is a proper native driver.
709 * Some dlls (corpol.dll from IE6 for instance) are incorrectly marked as native
710 * while being perfectly normal DLLs. This heuristic should catch such breakages.
711 */
712 static BOOL is_dll_native_subsystem( HMODULE module, const IMAGE_NT_HEADERS *nt, LPCWSTR filename )
713 {
714 static const WCHAR ntdllW[] = {'n','t','d','l','l','.','d','l','l',0};
715 static const WCHAR kernel32W[] = {'k','e','r','n','e','l','3','2','.','d','l','l',0};
716 const IMAGE_IMPORT_DESCRIPTOR *imports;
717 DWORD i, size;
718 WCHAR buffer[16];
719
720 if (nt->OptionalHeader.Subsystem != IMAGE_SUBSYSTEM_NATIVE) return FALSE;
721 if (nt->OptionalHeader.SectionAlignment < getpagesize()) return TRUE;
722
723 if ((imports = RtlImageDirectoryEntryToData( module, TRUE,
724 IMAGE_DIRECTORY_ENTRY_IMPORT, &size )))
725 {
726 for (i = 0; imports[i].Name; i++)
727 {
728 const char *name = get_rva( module, imports[i].Name );
729 DWORD len = strlen(name);
730 if (len * sizeof(WCHAR) >= sizeof(buffer)) continue;
731 ascii_to_unicode( buffer, name, len + 1 );
732 if (!strcmpiW( buffer, ntdllW ) || !strcmpiW( buffer, kernel32W ))
733 {
734 TRACE( "%s imports %s, assuming not native\n", debugstr_w(filename), debugstr_w(buffer) );
735 return FALSE;
736 }
737 }
738 }
739 return TRUE;
740 }
741
742
743 /*************************************************************************
744 * alloc_module
745 *
746 * Allocate a WINE_MODREF structure and add it to the process list
747 * The loader_section must be locked while calling this function.
748 */
749 static WINE_MODREF *alloc_module( HMODULE hModule, LPCWSTR filename )
750 {
751 WINE_MODREF *wm;
752 const WCHAR *p;
753 const IMAGE_NT_HEADERS *nt = RtlImageNtHeader(hModule);
754 PLIST_ENTRY entry, mark;
755
756 if (!(wm = RtlAllocateHeap( GetProcessHeap(), 0, sizeof(*wm) ))) return NULL;
757
758 wm->nDeps = 0;
759 wm->deps = NULL;
760
761 wm->ldr.BaseAddress = hModule;
762 wm->ldr.EntryPoint = NULL;
763 wm->ldr.SizeOfImage = nt->OptionalHeader.SizeOfImage;
764 wm->ldr.Flags = LDR_DONT_RESOLVE_REFS;
765 wm->ldr.LoadCount = 1;
766 wm->ldr.TlsIndex = -1;
767 wm->ldr.SectionHandle = NULL;
768 wm->ldr.CheckSum = 0;
769 wm->ldr.TimeDateStamp = 0;
770 wm->ldr.ActivationContext = 0;
771
772 RtlCreateUnicodeString( &wm->ldr.FullDllName, filename );
773 if ((p = strrchrW( wm->ldr.FullDllName.Buffer, '\\' ))) p++;
774 else p = wm->ldr.FullDllName.Buffer;
775 RtlInitUnicodeString( &wm->ldr.BaseDllName, p );
776
777 if ((nt->FileHeader.Characteristics & IMAGE_FILE_DLL) && !is_dll_native_subsystem( hModule, nt, p ))
778 {
779 wm->ldr.Flags |= LDR_IMAGE_IS_DLL;
780 if (nt->OptionalHeader.AddressOfEntryPoint)
781 wm->ldr.EntryPoint = (char *)hModule + nt->OptionalHeader.AddressOfEntryPoint;
782 }
783
784 InsertTailList(&NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList,
785 &wm->ldr.InLoadOrderModuleList);
786
787 /* insert module in MemoryList, sorted in increasing base addresses */
788 mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
789 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
790 {
791 if (CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList)->BaseAddress > wm->ldr.BaseAddress)
792 break;
793 }
794 entry->Blink->Flink = &wm->ldr.InMemoryOrderModuleList;
795 wm->ldr.InMemoryOrderModuleList.Blink = entry->Blink;
796 wm->ldr.InMemoryOrderModuleList.Flink = entry;
797 entry->Blink = &wm->ldr.InMemoryOrderModuleList;
798
799 /* wait until init is called for inserting into this list */
800 wm->ldr.InInitializationOrderModuleList.Flink = NULL;
801 wm->ldr.InInitializationOrderModuleList.Blink = NULL;
802
803 if (!(nt->OptionalHeader.DllCharacteristics & IMAGE_DLLCHARACTERISTICS_NX_COMPAT))
804 {
805 WARN( "disabling no-exec because of %s\n", debugstr_w(wm->ldr.BaseDllName.Buffer) );
806 VIRTUAL_SetForceExec( TRUE );
807 }
808 return wm;
809 }
810
811
812 /*************************************************************************
813 * alloc_process_tls
814 *
815 * Allocate the process-wide structure for module TLS storage.
816 */
817 static NTSTATUS alloc_process_tls(void)
818 {
819 PLIST_ENTRY mark, entry;
820 PLDR_MODULE mod;
821 const IMAGE_TLS_DIRECTORY *dir;
822 ULONG size, i;
823
824 mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
825 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
826 {
827 mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
828 if (!(dir = RtlImageDirectoryEntryToData( mod->BaseAddress, TRUE,
829 IMAGE_DIRECTORY_ENTRY_TLS, &size )))
830 continue;
831 size = (dir->EndAddressOfRawData - dir->StartAddressOfRawData) + dir->SizeOfZeroFill;
832 if (!size) continue;
833 tls_total_size += size;
834 tls_module_count++;
835 }
836 if (!tls_module_count) return STATUS_SUCCESS;
837
838 TRACE( "count %u size %u\n", tls_module_count, tls_total_size );
839
840 tls_dirs = RtlAllocateHeap( GetProcessHeap(), 0, tls_module_count * sizeof(*tls_dirs) );
841 if (!tls_dirs) return STATUS_NO_MEMORY;
842
843 for (i = 0, entry = mark->Flink; entry != mark; entry = entry->Flink)
844 {
845 mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
846 if (!(dir = RtlImageDirectoryEntryToData( mod->BaseAddress, TRUE,
847 IMAGE_DIRECTORY_ENTRY_TLS, &size )))
848 continue;
849 tls_dirs[i] = dir;
850 *(DWORD *)dir->AddressOfIndex = i;
851 mod->TlsIndex = i;
852 mod->LoadCount = -1; /* can't unload it */
853 i++;
854 }
855 return STATUS_SUCCESS;
856 }
857
858
859 /*************************************************************************
860 * alloc_thread_tls
861 *
862 * Allocate the per-thread structure for module TLS storage.
863 */
864 static NTSTATUS alloc_thread_tls(void)
865 {
866 void **pointers;
867 char *data;
868 UINT i;
869
870 if (!tls_module_count) return STATUS_SUCCESS;
871
872 if (!(pointers = RtlAllocateHeap( GetProcessHeap(), 0,
873 tls_module_count * sizeof(*pointers) )))
874 return STATUS_NO_MEMORY;
875
876 if (!(data = RtlAllocateHeap( GetProcessHeap(), 0, tls_total_size )))
877 {
878 RtlFreeHeap( GetProcessHeap(), 0, pointers );
879 return STATUS_NO_MEMORY;
880 }
881
882 for (i = 0; i < tls_module_count; i++)
883 {
884 const IMAGE_TLS_DIRECTORY *dir = tls_dirs[i];
885 ULONG size = dir->EndAddressOfRawData - dir->StartAddressOfRawData;
886
887 TRACE( "thread %04x idx %d: %d/%d bytes from %p to %p\n",
888 GetCurrentThreadId(), i, size, dir->SizeOfZeroFill,
889 (void *)dir->StartAddressOfRawData, data );
890
891 pointers[i] = data;
892 memcpy( data, (void *)dir->StartAddressOfRawData, size );
893 data += size;
894 memset( data, 0, dir->SizeOfZeroFill );
895 data += dir->SizeOfZeroFill;
896 }
897 NtCurrentTeb()->ThreadLocalStoragePointer = pointers;
898 return STATUS_SUCCESS;
899 }
900
901
902 /*************************************************************************
903 * call_tls_callbacks
904 */
905 static void call_tls_callbacks( HMODULE module, UINT reason )
906 {
907 const IMAGE_TLS_DIRECTORY *dir;
908 const PIMAGE_TLS_CALLBACK *callback;
909 ULONG dirsize;
910
911 dir = RtlImageDirectoryEntryToData( module, TRUE, IMAGE_DIRECTORY_ENTRY_TLS, &dirsize );
912 if (!dir || !dir->AddressOfCallBacks) return;
913
914 for (callback = (const PIMAGE_TLS_CALLBACK *)dir->AddressOfCallBacks; *callback; callback++)
915 {
916 if (TRACE_ON(relay))
917 DPRINTF("%04x:Call TLS callback (proc=%p,module=%p,reason=%s,reserved=0)\n",
918 GetCurrentThreadId(), *callback, module, reason_names[reason] );
919 __TRY
920 {
921 (*callback)( module, reason, NULL );
922 }
923 __EXCEPT_ALL
924 {
925 if (TRACE_ON(relay))
926 DPRINTF("%04x:exception in TLS callback (proc=%p,module=%p,reason=%s,reserved=0)\n",
927 GetCurrentThreadId(), callback, module, reason_names[reason] );
928 return;
929 }
930 __ENDTRY
931 if (TRACE_ON(relay))
932 DPRINTF("%04x:Ret TLS callback (proc=%p,module=%p,reason=%s,reserved=0)\n",
933 GetCurrentThreadId(), *callback, module, reason_names[reason] );
934 }
935 }
936
937
938 /*************************************************************************
939 * MODULE_InitDLL
940 */
941 static NTSTATUS MODULE_InitDLL( WINE_MODREF *wm, UINT reason, LPVOID lpReserved )
942 {
943 WCHAR mod_name[32];
944 NTSTATUS status = STATUS_SUCCESS;
945 DLLENTRYPROC entry = wm->ldr.EntryPoint;
946 void *module = wm->ldr.BaseAddress;
947 BOOL retv = TRUE;
948
949 /* Skip calls for modules loaded with special load flags */
950
951 if (wm->ldr.Flags & LDR_DONT_RESOLVE_REFS) return STATUS_SUCCESS;
952 if (wm->ldr.TlsIndex != -1) call_tls_callbacks( wm->ldr.BaseAddress, reason );
953 if (!entry) return STATUS_SUCCESS;
954
955 if (TRACE_ON(relay))
956 {
957 size_t len = min( wm->ldr.BaseDllName.Length, sizeof(mod_name)-sizeof(WCHAR) );
958 memcpy( mod_name, wm->ldr.BaseDllName.Buffer, len );
959 mod_name[len / sizeof(WCHAR)] = 0;
960 DPRINTF("%04x:Call PE DLL (proc=%p,module=%p %s,reason=%s,res=%p)\n",
961 GetCurrentThreadId(), entry, module, debugstr_w(mod_name),
962 reason_names[reason], lpReserved );
963 }
964 else TRACE("(%p %s,%s,%p) - CALL\n", module, debugstr_w(wm->ldr.BaseDllName.Buffer),
965 reason_names[reason], lpReserved );
966
967 __TRY
968 {
969 retv = call_dll_entry_point( entry, module, reason, lpReserved );
970 if (!retv)
971 status = STATUS_DLL_INIT_FAILED;
972 }
973 __EXCEPT_ALL
974 {
975 if (TRACE_ON(relay))
976 DPRINTF("%04x:exception in PE entry point (proc=%p,module=%p,reason=%s,res=%p)\n",
977 GetCurrentThreadId(), entry, module, reason_names[reason], lpReserved );
978 status = GetExceptionCode();
979 }
980 __ENDTRY
981
982 /* The state of the module list may have changed due to the call
983 to the dll. We cannot assume that this module has not been
984 deleted. */
985 if (TRACE_ON(relay))
986 DPRINTF("%04x:Ret PE DLL (proc=%p,module=%p %s,reason=%s,res=%p) retval=%x\n",
987 GetCurrentThreadId(), entry, module, debugstr_w(mod_name),
988 reason_names[reason], lpReserved, retv );
989 else TRACE("(%p,%s,%p) - RETURN %d\n", module, reason_names[reason], lpReserved, retv );
990
991 return status;
992 }
993
994
995 /*************************************************************************
996 * process_attach
997 *
998 * Send the process attach notification to all DLLs the given module
999 * depends on (recursively). This is somewhat complicated due to the fact that
1000 *
1001 * - we have to respect the module dependencies, i.e. modules implicitly
1002 * referenced by another module have to be initialized before the module
1003 * itself can be initialized
1004 *
1005 * - the initialization routine of a DLL can itself call LoadLibrary,
1006 * thereby introducing a whole new set of dependencies (even involving
1007 * the 'old' modules) at any time during the whole process
1008 *
1009 * (Note that this routine can be recursively entered not only directly
1010 * from itself, but also via LoadLibrary from one of the called initialization
1011 * routines.)
1012 *
1013 * Furthermore, we need to rearrange the main WINE_MODREF list to allow
1014 * the process *detach* notifications to be sent in the correct order.
1015 * This must not only take into account module dependencies, but also
1016 * 'hidden' dependencies created by modules calling LoadLibrary in their
1017 * attach notification routine.
1018 *
1019 * The strategy is rather simple: we move a WINE_MODREF to the head of the
1020 * list after the attach notification has returned. This implies that the
1021 * detach notifications are called in the reverse of the sequence the attach
1022 * notifications *returned*.
1023 *
1024 * The loader_section must be locked while calling this function.
1025 */
1026 static NTSTATUS process_attach( WINE_MODREF *wm, LPVOID lpReserved )
1027 {
1028 NTSTATUS status = STATUS_SUCCESS;
1029 ULONG_PTR cookie;
1030 int i;
1031
1032 if (process_detaching) return status;
1033
1034 /* prevent infinite recursion in case of cyclical dependencies */
1035 if ( ( wm->ldr.Flags & LDR_LOAD_IN_PROGRESS )
1036 || ( wm->ldr.Flags & LDR_PROCESS_ATTACHED ) )
1037 return status;
1038
1039 TRACE("(%s,%p) - START\n", debugstr_w(wm->ldr.BaseDllName.Buffer), lpReserved );
1040
1041 /* Tag current MODREF to prevent recursive loop */
1042 wm->ldr.Flags |= LDR_LOAD_IN_PROGRESS;
1043 if (lpReserved) wm->ldr.LoadCount = -1; /* pin it if imported by the main exe */
1044 if (wm->ldr.ActivationContext) RtlActivateActivationContext( 0, wm->ldr.ActivationContext, &cookie );
1045
1046 /* Recursively attach all DLLs this one depends on */
1047 for ( i = 0; i < wm->nDeps; i++ )
1048 {
1049 if (!wm->deps[i]) continue;
1050 if ((status = process_attach( wm->deps[i], lpReserved )) != STATUS_SUCCESS) break;
1051 }
1052
1053 /* Call DLL entry point */
1054 if (status == STATUS_SUCCESS)
1055 {
1056 WINE_MODREF *prev = current_modref;
1057 current_modref = wm;
1058 status = MODULE_InitDLL( wm, DLL_PROCESS_ATTACH, lpReserved );
1059 if (status == STATUS_SUCCESS)
1060 wm->ldr.Flags |= LDR_PROCESS_ATTACHED;
1061 else
1062 {
1063 /* point to the name so LdrInitializeThunk can print it */
1064 last_failed_modref = wm;
1065 WARN("Initialization of %s failed\n", debugstr_w(wm->ldr.BaseDllName.Buffer));
1066 }
1067 current_modref = prev;
1068 }
1069
1070 if (!wm->ldr.InInitializationOrderModuleList.Flink)
1071 InsertTailList(&NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList,
1072 &wm->ldr.InInitializationOrderModuleList);
1073
1074 if (wm->ldr.ActivationContext) RtlDeactivateActivationContext( 0, cookie );
1075 /* Remove recursion flag */
1076 wm->ldr.Flags &= ~LDR_LOAD_IN_PROGRESS;
1077
1078 TRACE("(%s,%p) - END\n", debugstr_w(wm->ldr.BaseDllName.Buffer), lpReserved );
1079 return status;
1080 }
1081
1082
1083 /**********************************************************************
1084 * attach_implicitly_loaded_dlls
1085 *
1086 * Attach to the (builtin) dlls that have been implicitly loaded because
1087 * of a dependency at the Unix level, but not imported at the Win32 level.
1088 */
1089 static void attach_implicitly_loaded_dlls( LPVOID reserved )
1090 {
1091 for (;;)
1092 {
1093 PLIST_ENTRY mark, entry;
1094
1095 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
1096 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1097 {
1098 LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
1099
1100 if (mod->Flags & (LDR_LOAD_IN_PROGRESS | LDR_PROCESS_ATTACHED)) continue;
1101 TRACE( "found implicitly loaded %s, attaching to it\n",
1102 debugstr_w(mod->BaseDllName.Buffer));
1103 process_attach( CONTAINING_RECORD(mod, WINE_MODREF, ldr), reserved );
1104 break; /* restart the search from the start */
1105 }
1106 if (entry == mark) break; /* nothing found */
1107 }
1108 }
1109
1110
1111 /*************************************************************************
1112 * process_detach
1113 *
1114 * Send DLL process detach notifications. See the comment about calling
1115 * sequence at process_attach. Unless the bForceDetach flag
1116 * is set, only DLLs with zero refcount are notified.
1117 */
1118 static void process_detach( BOOL bForceDetach, LPVOID lpReserved )
1119 {
1120 PLIST_ENTRY mark, entry;
1121 PLDR_MODULE mod;
1122
1123 RtlEnterCriticalSection( &loader_section );
1124 if (bForceDetach) process_detaching = 1;
1125 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
1126 do
1127 {
1128 for (entry = mark->Blink; entry != mark; entry = entry->Blink)
1129 {
1130 mod = CONTAINING_RECORD(entry, LDR_MODULE,
1131 InInitializationOrderModuleList);
1132 /* Check whether to detach this DLL */
1133 if ( !(mod->Flags & LDR_PROCESS_ATTACHED) )
1134 continue;
1135 if ( mod->LoadCount && !bForceDetach )
1136 continue;
1137
1138 /* Call detach notification */
1139 mod->Flags &= ~LDR_PROCESS_ATTACHED;
1140 MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr),
1141 DLL_PROCESS_DETACH, lpReserved );
1142
1143 /* Restart at head of WINE_MODREF list, as entries might have
1144 been added and/or removed while performing the call ... */
1145 break;
1146 }
1147 } while (entry != mark);
1148
1149 RtlLeaveCriticalSection( &loader_section );
1150 }
1151
1152 /*************************************************************************
1153 * MODULE_DllThreadAttach
1154 *
1155 * Send DLL thread attach notifications. These are sent in the
1156 * reverse sequence of process detach notification.
1157 *
1158 */
1159 NTSTATUS MODULE_DllThreadAttach( LPVOID lpReserved )
1160 {
1161 PLIST_ENTRY mark, entry;
1162 PLDR_MODULE mod;
1163 NTSTATUS status;
1164
1165 /* don't do any attach calls if process is exiting */
1166 if (process_detaching) return STATUS_SUCCESS;
1167 /* FIXME: there is still a race here */
1168
1169 RtlEnterCriticalSection( &loader_section );
1170
1171 if ((status = alloc_thread_tls()) != STATUS_SUCCESS) goto done;
1172
1173 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
1174 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1175 {
1176 mod = CONTAINING_RECORD(entry, LDR_MODULE,
1177 InInitializationOrderModuleList);
1178 if ( !(mod->Flags & LDR_PROCESS_ATTACHED) )
1179 continue;
1180 if ( mod->Flags & LDR_NO_DLL_CALLS )
1181 continue;
1182
1183 MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr),
1184 DLL_THREAD_ATTACH, lpReserved );
1185 }
1186
1187 done:
1188 RtlLeaveCriticalSection( &loader_section );
1189 return status;
1190 }
1191
1192 /******************************************************************
1193 * LdrDisableThreadCalloutsForDll (NTDLL.@)
1194 *
1195 */
1196 NTSTATUS WINAPI LdrDisableThreadCalloutsForDll(HMODULE hModule)
1197 {
1198 WINE_MODREF *wm;
1199 NTSTATUS ret = STATUS_SUCCESS;
1200
1201 RtlEnterCriticalSection( &loader_section );
1202
1203 wm = get_modref( hModule );
1204 if (!wm || wm->ldr.TlsIndex != -1)
1205 ret = STATUS_DLL_NOT_FOUND;
1206 else
1207 wm->ldr.Flags |= LDR_NO_DLL_CALLS;
1208
1209 RtlLeaveCriticalSection( &loader_section );
1210
1211 return ret;
1212 }
1213
1214 /******************************************************************
1215 * LdrFindEntryForAddress (NTDLL.@)
1216 *
1217 * The loader_section must be locked while calling this function
1218 */
1219 NTSTATUS WINAPI LdrFindEntryForAddress(const void* addr, PLDR_MODULE* pmod)
1220 {
1221 PLIST_ENTRY mark, entry;
1222 PLDR_MODULE mod;
1223
1224 mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
1225 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1226 {
1227 mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
1228 if ((const void *)mod->BaseAddress <= addr &&
1229 (const char *)addr < (char*)mod->BaseAddress + mod->SizeOfImage)
1230 {
1231 *pmod = mod;
1232 return STATUS_SUCCESS;
1233 }
1234 if ((const void *)mod->BaseAddress > addr) break;
1235 }
1236 return STATUS_NO_MORE_ENTRIES;
1237 }
1238
1239 /******************************************************************
1240 * LdrLockLoaderLock (NTDLL.@)
1241 *
1242 * Note: flags are not implemented.
1243 * Flag 0x01 is used to raise exceptions on errors.
1244 * Flag 0x02 is used to avoid waiting on the section (does RtlTryEnterCriticalSection instead).
1245 */
1246 NTSTATUS WINAPI LdrLockLoaderLock( ULONG flags, ULONG *result, ULONG *magic )
1247 {
1248 if (flags) FIXME( "flags %x not supported\n", flags );
1249
1250 if (result) *result = 1;
1251 if (!magic) return STATUS_INVALID_PARAMETER_3;
1252 RtlEnterCriticalSection( &loader_section );
1253 *magic = GetCurrentThreadId();
1254 return STATUS_SUCCESS;
1255 }
1256
1257
1258 /******************************************************************
1259 * LdrUnlockLoaderUnlock (NTDLL.@)
1260 */
1261 NTSTATUS WINAPI LdrUnlockLoaderLock( ULONG flags, ULONG magic )
1262 {
1263 if (magic)
1264 {
1265 if (magic != GetCurrentThreadId()) return STATUS_INVALID_PARAMETER_2;
1266 RtlLeaveCriticalSection( &loader_section );
1267 }
1268 return STATUS_SUCCESS;
1269 }
1270
1271
1272 /******************************************************************
1273 * LdrGetProcedureAddress (NTDLL.@)
1274 */
1275 NTSTATUS WINAPI LdrGetProcedureAddress(HMODULE module, const ANSI_STRING *name,
1276 ULONG ord, PVOID *address)
1277 {
1278 IMAGE_EXPORT_DIRECTORY *exports;
1279 DWORD exp_size;
1280 NTSTATUS ret = STATUS_PROCEDURE_NOT_FOUND;
1281
1282 RtlEnterCriticalSection( &loader_section );
1283
1284 /* check if the module itself is invalid to return the proper error */
1285 if (!get_modref( module )) ret = STATUS_DLL_NOT_FOUND;
1286 else if ((exports = RtlImageDirectoryEntryToData( module, TRUE,
1287 IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size )))
1288 {
1289 LPCWSTR load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
1290 void *proc = name ? find_named_export( module, exports, exp_size, name->Buffer, -1, load_path )
1291 : find_ordinal_export( module, exports, exp_size, ord - exports->Base, load_path );
1292 if (proc)
1293 {
1294 *address = proc;
1295 ret = STATUS_SUCCESS;
1296 }
1297 }
1298
1299 RtlLeaveCriticalSection( &loader_section );
1300 return ret;
1301 }
1302
1303
1304 /***********************************************************************
1305 * is_fake_dll
1306 *
1307 * Check if a loaded native dll is a Wine fake dll.
1308 */
1309 static BOOL is_fake_dll( HANDLE handle )
1310 {
1311 static const char fakedll_signature[] = "Wine placeholder DLL";
1312 char buffer[sizeof(IMAGE_DOS_HEADER) + sizeof(fakedll_signature)];
1313 const IMAGE_DOS_HEADER *dos = (const IMAGE_DOS_HEADER *)buffer;
1314 IO_STATUS_BLOCK io;
1315 LARGE_INTEGER offset;
1316
1317 offset.QuadPart = 0;
1318 if (NtReadFile( handle, 0, NULL, 0, &io, buffer, sizeof(buffer), &offset, NULL )) return FALSE;
1319 if (io.Information < sizeof(buffer)) return FALSE;
1320 if (dos->e_magic != IMAGE_DOS_SIGNATURE) return FALSE;
1321 if (dos->e_lfanew >= sizeof(*dos) + sizeof(fakedll_signature) &&
1322 !memcmp( dos + 1, fakedll_signature, sizeof(fakedll_signature) )) return TRUE;
1323 return FALSE;
1324 }
1325
1326
1327 /***********************************************************************
1328 * get_builtin_fullname
1329 *
1330 * Build the full pathname for a builtin dll.
1331 */
1332 static WCHAR *get_builtin_fullname( const WCHAR *path, const char *filename )
1333 {
1334 static const WCHAR soW[] = {'.','s','o',0};
1335 WCHAR *p, *fullname;
1336 size_t i, len = strlen(filename);
1337
1338 /* check if path can correspond to the dll we have */
1339 if (path && (p = strrchrW( path, '\\' )))
1340 {
1341 p++;
1342 for (i = 0; i < len; i++)
1343 if (tolowerW(p[i]) != tolowerW( (WCHAR)filename[i]) ) break;
1344 if (i == len && (!p[len] || !strcmpiW( p + len, soW )))
1345 {
1346 /* the filename matches, use path as the full path */
1347 len += p - path;
1348 if ((fullname = RtlAllocateHeap( GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR) )))
1349 {
1350 memcpy( fullname, path, len * sizeof(WCHAR) );
1351 fullname[len] = 0;
1352 }
1353 return fullname;
1354 }
1355 }
1356
1357 if ((fullname = RtlAllocateHeap( GetProcessHeap(), 0,
1358 system_dir.MaximumLength + (len + 1) * sizeof(WCHAR) )))
1359 {
1360 memcpy( fullname, system_dir.Buffer, system_dir.Length );
1361 p = fullname + system_dir.Length / sizeof(WCHAR);
1362 if (p > fullname && p[-1] != '\\') *p++ = '\\';
1363 ascii_to_unicode( p, filename, len + 1 );
1364 }
1365 return fullname;
1366 }
1367
1368
1369 /***********************************************************************
1370 * load_builtin_callback
1371 *
1372 * Load a library in memory; callback function for wine_dll_register
1373 */
1374 static void load_builtin_callback( void *module, const char *filename )
1375 {
1376 static const WCHAR emptyW[1];
1377 IMAGE_NT_HEADERS *nt;
1378 WINE_MODREF *wm;
1379 WCHAR *fullname;
1380 const WCHAR *load_path;
1381
1382 if (!module)
1383 {
1384 ERR("could not map image for %s\n", filename ? filename : "main exe" );
1385 return;
1386 }
1387 if (!(nt = RtlImageNtHeader( module )))
1388 {
1389 ERR( "bad module for %s\n", filename ? filename : "main exe" );
1390 builtin_load_info->status = STATUS_INVALID_IMAGE_FORMAT;
1391 return;
1392 }
1393 virtual_create_system_view( module, nt->OptionalHeader.SizeOfImage,
1394 VPROT_SYSTEM | VPROT_IMAGE | VPROT_COMMITTED |
1395 VPROT_READ | VPROT_WRITECOPY | VPROT_EXEC );
1396
1397 /* create the MODREF */
1398
1399 if (!(fullname = get_builtin_fullname( builtin_load_info->filename, filename )))
1400 {
1401 ERR( "can't load %s\n", filename );
1402 builtin_load_info->status = STATUS_NO_MEMORY;
1403 return;
1404 }
1405
1406 wm = alloc_module( module, fullname );
1407 RtlFreeHeap( GetProcessHeap(), 0, fullname );
1408 if (!wm)
1409 {
1410 ERR( "can't load %s\n", filename );
1411 builtin_load_info->status = STATUS_NO_MEMORY;
1412 return;
1413 }
1414 wm->ldr.Flags |= LDR_WINE_INTERNAL;
1415
1416 if (!(nt->FileHeader.Characteristics & IMAGE_FILE_DLL) &&
1417 !NtCurrentTeb()->Peb->ImageBaseAddress) /* if we already have an executable, ignore this one */
1418 {
1419 NtCurrentTeb()->Peb->ImageBaseAddress = module;
1420 }
1421 else
1422 {
1423 /* fixup imports */
1424
1425 load_path = builtin_load_info->load_path;
1426 if (!load_path) load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
1427 if (!load_path) load_path = emptyW;
1428 if (fixup_imports( wm, load_path ) != STATUS_SUCCESS)
1429 {
1430 /* the module has only be inserted in the load & memory order lists */
1431 RemoveEntryList(&wm->ldr.InLoadOrderModuleList);
1432 RemoveEntryList(&wm->ldr.InMemoryOrderModuleList);
1433 /* FIXME: free the modref */
1434 builtin_load_info->status = STATUS_DLL_NOT_FOUND;
1435 return;
1436 }
1437 }
1438
1439 builtin_load_info->wm = wm;
1440 TRACE( "loaded %s %p %p\n", filename, wm, module );
1441
1442 /* send the DLL load event */
1443
1444 SERVER_START_REQ( load_dll )
1445 {
1446 req->handle = 0;
1447 req->base = wine_server_client_ptr( module );
1448 req->size = nt->OptionalHeader.SizeOfImage;
1449 req->dbg_offset = nt->FileHeader.PointerToSymbolTable;
1450 req->dbg_size = nt->FileHeader.NumberOfSymbols;
1451 req->name = wine_server_client_ptr( &wm->ldr.FullDllName.Buffer );
1452 wine_server_add_data( req, wm->ldr.FullDllName.Buffer, wm->ldr.FullDllName.Length );
1453 wine_server_call( req );
1454 }
1455 SERVER_END_REQ;
1456
1457 /* setup relay debugging entry points */
1458 if (TRACE_ON(relay)) RELAY_SetupDLL( module );
1459 }
1460
1461
1462 /******************************************************************************
1463 * load_native_dll (internal)
1464 */
1465 static NTSTATUS load_native_dll( LPCWSTR load_path, LPCWSTR name, HANDLE file,
1466 DWORD flags, WINE_MODREF** pwm )
1467 {
1468 void *module;
1469 HANDLE mapping;
1470 OBJECT_ATTRIBUTES attr;
1471 LARGE_INTEGER size;
1472 IMAGE_NT_HEADERS *nt;
1473 SIZE_T len = 0;
1474 WINE_MODREF *wm;
1475 NTSTATUS status;
1476
1477 TRACE("Trying native dll %s\n", debugstr_w(name));
1478
1479 attr.Length = sizeof(attr);
1480 attr.RootDirectory = 0;
1481 attr.ObjectName = NULL;
1482 attr.Attributes = 0;
1483 attr.SecurityDescriptor = NULL;
1484 attr.SecurityQualityOfService = NULL;
1485 size.QuadPart = 0;
1486
1487 status = NtCreateSection( &mapping, STANDARD_RIGHTS_REQUIRED | SECTION_QUERY | SECTION_MAP_READ,
1488 &attr, &size, PAGE_READONLY, SEC_IMAGE, file );
1489 if (status != STATUS_SUCCESS) return status;
1490
1491 module = NULL;
1492 status = NtMapViewOfSection( mapping, NtCurrentProcess(),
1493 &module, 0, 0, &size, &len, ViewShare, 0, PAGE_READONLY );
1494 NtClose( mapping );
1495 if (status != STATUS_SUCCESS) return status;
1496
1497 /* create the MODREF */
1498
1499 if (!(wm = alloc_module( module, name ))) return STATUS_NO_MEMORY;
1500
1501 /* fixup imports */
1502
1503 if (!(flags & DONT_RESOLVE_DLL_REFERENCES))
1504 {
1505 if ((status = fixup_imports( wm, load_path )) != STATUS_SUCCESS)
1506 {
1507 /* the module has only be inserted in the load & memory order lists */
1508 RemoveEntryList(&wm->ldr.InLoadOrderModuleList);
1509 RemoveEntryList(&wm->ldr.InMemoryOrderModuleList);
1510
1511 /* FIXME: there are several more dangling references
1512 * left. Including dlls loaded by this dll before the
1513 * failed one. Unrolling is rather difficult with the
1514 * current structure and we can leave them lying
1515 * around with no problems, so we don't care.
1516 * As these might reference our wm, we don't free it.
1517 */
1518 return status;
1519 }
1520 }
1521
1522 /* send DLL load event */
1523
1524 nt = RtlImageNtHeader( module );
1525
1526 SERVER_START_REQ( load_dll )
1527 {
1528 req->handle = wine_server_obj_handle( file );
1529 req->base = wine_server_client_ptr( module );
1530 req->size = nt->OptionalHeader.SizeOfImage;
1531 req->dbg_offset = nt->FileHeader.PointerToSymbolTable;
1532 req->dbg_size = nt->FileHeader.NumberOfSymbols;
1533 req->name = wine_server_client_ptr( &wm->ldr.FullDllName.Buffer );
1534 wine_server_add_data( req, wm->ldr.FullDllName.Buffer, wm->ldr.FullDllName.Length );
1535 wine_server_call( req );
1536 }
1537 SERVER_END_REQ;
1538
1539 if ((wm->ldr.Flags & LDR_IMAGE_IS_DLL) && TRACE_ON(snoop)) SNOOP_SetupDLL( module );
1540
1541 TRACE_(loaddll)( "Loaded %s at %p: native\n", debugstr_w(wm->ldr.FullDllName.Buffer), module );
1542
1543 wm->ldr.LoadCount = 1;
1544 *pwm = wm;
1545 return STATUS_SUCCESS;
1546 }
1547
1548
1549 /***********************************************************************
1550 * load_builtin_dll
1551 */
1552 static NTSTATUS load_builtin_dll( LPCWSTR load_path, LPCWSTR path, HANDLE file,
1553 DWORD flags, WINE_MODREF** pwm )
1554 {
1555 char error[256], dllname[MAX_PATH];
1556 const WCHAR *name, *p;
1557 DWORD len, i;
1558 void *handle = NULL;
1559 struct builtin_load_info info, *prev_info;
1560
1561 /* Fix the name in case we have a full path and extension */
1562 name = path;
1563 if ((p = strrchrW( name, '\\' ))) name = p + 1;
1564 if ((p = strrchrW( name, '/' ))) name = p + 1;
1565
1566 /* load_library will modify info.status. Note also that load_library can be
1567 * called several times, if the .so file we're loading has dependencies.
1568 * info.status will gather all the errors we may get while loading all these
1569 * libraries
1570 */
1571 info.load_path = load_path;
1572 info.filename = NULL;
1573 info.status = STATUS_SUCCESS;
1574 info.wm = NULL;
1575
1576 if (file) /* we have a real file, try to load it */
1577 {
1578 UNICODE_STRING nt_name;
1579 ANSI_STRING unix_name;
1580
1581 TRACE("Trying built-in %s\n", debugstr_w(path));
1582
1583 if (!RtlDosPathNameToNtPathName_U( path, &nt_name, NULL, NULL ))
1584 return STATUS_DLL_NOT_FOUND;
1585
1586 if (wine_nt_to_unix_file_name( &nt_name, &unix_name, FILE_OPEN, FALSE ))
1587 {
1588 RtlFreeUnicodeString( &nt_name );
1589 return STATUS_DLL_NOT_FOUND;
1590 }
1591 prev_info = builtin_load_info;
1592 info.filename = nt_name.Buffer + 4; /* skip \??\ */
1593 builtin_load_info = &info;
1594 handle = wine_dlopen( unix_name.Buffer, RTLD_NOW, error, sizeof(error) );
1595 builtin_load_info = prev_info;
1596 RtlFreeUnicodeString( &nt_name );
1597 RtlFreeHeap( GetProcessHeap(), 0, unix_name.Buffer );
1598 if (!handle)
1599 {
1600 WARN( "failed to load .so lib for builtin %s: %s\n", debugstr_w(path), error );
1601 return STATUS_INVALID_IMAGE_FORMAT;
1602 }
1603 }
1604 else
1605 {
1606 int file_exists;
1607
1608 TRACE("Trying built-in %s\n", debugstr_w(name));
1609
1610 /* we don't want to depend on the current codepage here */
1611 len = strlenW( name ) + 1;
1612 if (len >= sizeof(dllname)) return STATUS_NAME_TOO_LONG;
1613 for (i = 0; i < len; i++)
1614 {
1615 if (name[i] > 127) return STATUS_DLL_NOT_FOUND;
1616 dllname[i] = (char)name[i];
1617 if (dllname[i] >= 'A' && dllname[i] <= 'Z') dllname[i] += 'a' - 'A';
1618 }
1619
1620 prev_info = builtin_load_info;
1621 builtin_load_info = &info;
1622 handle = wine_dll_load( dllname, error, sizeof(error), &file_exists );
1623 builtin_load_info = prev_info;
1624 if (!handle)
1625 {
1626 if (!file_exists)
1627 {
1628 /* The file does not exist -> WARN() */
1629 WARN("cannot open .so lib for builtin %s: %s\n", debugstr_w(name), error);
1630 return STATUS_DLL_NOT_FOUND;
1631 }
1632 /* ERR() for all other errors (missing functions, ...) */
1633 ERR("failed to load .so lib for builtin %s: %s\n", debugstr_w(name), error );
1634 return STATUS_PROCEDURE_NOT_FOUND;
1635 }
1636 }
1637
1638 if (info.status != STATUS_SUCCESS)
1639 {
1640 wine_dll_unload( handle );
1641 return info.status;
1642 }
1643
1644 if (!info.wm)
1645 {
1646 PLIST_ENTRY mark, entry;
1647
1648 /* The constructor wasn't called, this means the .so is already
1649 * loaded under a different name. Try to find the wm for it. */
1650
1651 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
1652 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1653 {
1654 LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
1655 if (mod->Flags & LDR_WINE_INTERNAL && mod->SectionHandle == handle)
1656 {
1657 info.wm = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
1658 TRACE( "Found %s at %p for builtin %s\n",
1659 debugstr_w(info.wm->ldr.FullDllName.Buffer), info.wm->ldr.BaseAddress, debugstr_w(path) );
1660 break;
1661 }
1662 }
1663 wine_dll_unload( handle ); /* release the libdl refcount */
1664 if (!info.wm) return STATUS_INVALID_IMAGE_FORMAT;
1665 if (info.wm->ldr.LoadCount != -1) info.wm->ldr.LoadCount++;
1666 }
1667 else
1668 {
1669 TRACE_(loaddll)( "Loaded %s at %p: builtin\n", debugstr_w(info.wm->ldr.FullDllName.Buffer), info.wm->ldr.BaseAddress );
1670 info.wm->ldr.LoadCount = 1;
1671 info.wm->ldr.SectionHandle = handle;
1672 }
1673
1674 *pwm = info.wm;
1675 return STATUS_SUCCESS;
1676 }
1677
1678
1679 /***********************************************************************
1680 * find_actctx_dll
1681 *
1682 * Find the full path (if any) of the dll from the activation context.
1683 */
1684 static NTSTATUS find_actctx_dll( LPCWSTR libname, LPWSTR *fullname )
1685 {
1686 static const WCHAR winsxsW[] = {'\\','w','i','n','s','x','s','\\'};
1687 static const WCHAR dotManifestW[] = {'.','m','a','n','i','f','e','s','t',0};
1688
1689 ACTIVATION_CONTEXT_ASSEMBLY_DETAILED_INFORMATION *info;
1690 ACTCTX_SECTION_KEYED_DATA data;
1691 UNICODE_STRING nameW;
1692 NTSTATUS status;
1693 SIZE_T needed, size = 1024;
1694 WCHAR *p;
1695
1696 RtlInitUnicodeString( &nameW, libname );
1697 data.cbSize = sizeof(data);
1698 status = RtlFindActivationContextSectionString( FIND_ACTCTX_SECTION_KEY_RETURN_HACTCTX, NULL,
1699 ACTIVATION_CONTEXT_SECTION_DLL_REDIRECTION,
1700 &nameW, &data );
1701 if (status != STATUS_SUCCESS) return status;
1702
1703 for (;;)
1704 {
1705 if (!(info = RtlAllocateHeap( GetProcessHeap(), 0, size )))
1706 {
1707 status = STATUS_NO_MEMORY;
1708 goto done;
1709 }
1710 status = RtlQueryInformationActivationContext( 0, data.hActCtx, &data.ulAssemblyRosterIndex,
1711 AssemblyDetailedInformationInActivationContext,
1712 info, size, &needed );
1713 if (status == STATUS_SUCCESS) break;
1714 if (status != STATUS_BUFFER_TOO_SMALL) goto done;
1715 RtlFreeHeap( GetProcessHeap(), 0, info );
1716 size = needed;
1717 /* restart with larger buffer */
1718 }
1719
1720 if ((p = strrchrW( info->lpAssemblyManifestPath, '\\' )))
1721 {
1722 DWORD dirlen = info->ulAssemblyDirectoryNameLength / sizeof(WCHAR);
1723
1724 p++;
1725 if (strncmpiW( p, info->lpAssemblyDirectoryName, dirlen ) || strcmpiW( p + dirlen, dotManifestW ))
1726 {
1727 /* manifest name does not match directory name, so it's not a global
1728 * windows/winsxs manifest; use the manifest directory name instead */
1729 dirlen = p - info->lpAssemblyManifestPath;
1730 needed = (dirlen + 1) * sizeof(WCHAR) + nameW.Length;
1731 if (!(*fullname = p = RtlAllocateHeap( GetProcessHeap(), 0, needed )))
1732 {
1733 status = STATUS_NO_MEMORY;
1734 goto done;
1735 }
1736 memcpy( p, info->lpAssemblyManifestPath, dirlen * sizeof(WCHAR) );
1737 p += dirlen;
1738 strcpyW( p, libname );
1739 goto done;
1740 }
1741 }
1742
1743 needed = (windows_dir.Length + sizeof(winsxsW) + info->ulAssemblyDirectoryNameLength +
1744 nameW.Length + 2*sizeof(WCHAR));
1745
1746 if (!(*fullname = p = RtlAllocateHeap( GetProcessHeap(), 0, needed )))
1747 {
1748 status = STATUS_NO_MEMORY;
1749 goto done;
1750 }
1751 memcpy( p, windows_dir.Buffer, windows_dir.Length );
1752 p += windows_dir.Length / sizeof(WCHAR);
1753 memcpy( p, winsxsW, sizeof(winsxsW) );
1754 p += sizeof(winsxsW) / sizeof(WCHAR);
1755 memcpy( p, info->lpAssemblyDirectoryName, info->ulAssemblyDirectoryNameLength );
1756 p += info->ulAssemblyDirectoryNameLength / sizeof(WCHAR);
1757 *p++ = '\\';
1758 strcpyW( p, libname );
1759 done:
1760 RtlFreeHeap( GetProcessHeap(), 0, info );
1761 RtlReleaseActivationContext( data.hActCtx );
1762 return status;
1763 }
1764
1765
1766 /***********************************************************************
1767 * find_dll_file
1768 *
1769 * Find the file (or already loaded module) for a given dll name.
1770 */
1771 static NTSTATUS find_dll_file( const WCHAR *load_path, const WCHAR *libname,
1772 WCHAR *filename, ULONG *size, WINE_MODREF **pwm, HANDLE *handle )
1773 {
1774 OBJECT_ATTRIBUTES attr;
1775 IO_STATUS_BLOCK io;
1776 UNICODE_STRING nt_name;
1777 WCHAR *file_part, *ext, *dllname;
1778 ULONG len;
1779
1780 /* first append .dll if needed */
1781
1782 dllname = NULL;
1783 if (!(ext = strrchrW( libname, '.')) || strchrW( ext, '/' ) || strchrW( ext, '\\'))
1784 {
1785 if (!(dllname = RtlAllocateHeap( GetProcessHeap(), 0,
1786 (strlenW(libname) * sizeof(WCHAR)) + sizeof(dllW) )))
1787 return STATUS_NO_MEMORY;
1788 strcpyW( dllname, libname );
1789 strcatW( dllname, dllW );
1790 libname = dllname;
1791 }
1792
1793 nt_name.Buffer = NULL;
1794
1795 if (!contains_path( libname ))
1796 {
1797 NTSTATUS status;
1798 WCHAR *fullname = NULL;
1799
1800 if ((*pwm = find_basename_module( libname )) != NULL) goto found;
1801
1802 status = find_actctx_dll( libname, &fullname );
1803 if (status == STATUS_SUCCESS)
1804 {
1805 TRACE ("found %s for %s\n", debugstr_w(fullname), debugstr_w(libname) );
1806 RtlFreeHeap( GetProcessHeap(), 0, dllname );
1807 libname = dllname = fullname;
1808 }
1809 else if (status != STATUS_SXS_KEY_NOT_FOUND)
1810 {
1811 RtlFreeHeap( GetProcessHeap(), 0, dllname );
1812 return status;
1813 }
1814 }
1815
1816 if (RtlDetermineDosPathNameType_U( libname ) == RELATIVE_PATH)
1817 {
1818 /* we need to search for it */
1819 len = RtlDosSearchPath_U( load_path, libname, NULL, *size, filename, &file_part );
1820 if (len)
1821 {
1822 if (len >= *size) goto overflow;
1823 if ((*pwm = find_fullname_module( filename )) || !handle) goto found;
1824
1825 if (!RtlDosPathNameToNtPathName_U( filename, &nt_name, NULL, NULL ))
1826 {
1827 RtlFreeHeap( GetProcessHeap(), 0, dllname );
1828 return STATUS_NO_MEMORY;
1829 }
1830 attr.Length = sizeof(attr);
1831 attr.RootDirectory = 0;
1832 attr.Attributes = OBJ_CASE_INSENSITIVE;
1833 attr.ObjectName = &nt_name;
1834 attr.SecurityDescriptor = NULL;
1835 attr.SecurityQualityOfService = NULL;
1836 if (NtOpenFile( handle, GENERIC_READ, &attr, &io, FILE_SHARE_READ|FILE_SHARE_DELETE, 0 )) *handle = 0;
1837 goto found;
1838 }
1839
1840 /* not found */
1841
1842 if (!contains_path( libname ))
1843 {
1844 /* if libname doesn't contain a path at all, we simply return the name as is,
1845 * to be loaded as builtin */
1846 len = strlenW(libname) * sizeof(WCHAR);
1847 if (len >= *size) goto overflow;
1848 strcpyW( filename, libname );
1849 goto found;
1850 }
1851 }
1852
1853 /* absolute path name, or relative path name but not found above */
1854
1855 if (!RtlDosPathNameToNtPathName_U( libname, &nt_name, &file_part, NULL ))
1856 {
1857 RtlFreeHeap( GetProcessHeap(), 0, dllname );
1858 return STATUS_NO_MEMORY;
1859 }
1860 len = nt_name.Length - 4*sizeof(WCHAR); /* for \??\ prefix */
1861 if (len >= *size) goto overflow;
1862 memcpy( filename, nt_name.Buffer + 4, len + sizeof(WCHAR) );
1863 if (!(*pwm = find_fullname_module( filename )) && handle)
1864 {
1865 attr.Length = sizeof(attr);
1866 attr.RootDirectory = 0;
1867 attr.Attributes = OBJ_CASE_INSENSITIVE;
1868 attr.ObjectName = &nt_name;
1869 attr.SecurityDescriptor = NULL;
1870 attr.SecurityQualityOfService = NULL;
1871 if (NtOpenFile( handle, GENERIC_READ, &attr, &io, FILE_SHARE_READ|FILE_SHARE_DELETE, 0 )) *handle = 0;
1872 }
1873 found:
1874 RtlFreeUnicodeString( &nt_name );
1875 RtlFreeHeap( GetProcessHeap(), 0, dllname );
1876 return STATUS_SUCCESS;
1877
1878 overflow:
1879 RtlFreeUnicodeString( &nt_name );
1880 RtlFreeHeap( GetProcessHeap(), 0, dllname );
1881 *size = len + sizeof(WCHAR);
1882 return STATUS_BUFFER_TOO_SMALL;
1883 }
1884
1885
1886 /***********************************************************************
1887 * load_dll (internal)
1888 *
1889 * Load a PE style module according to the load order.
1890 * The loader_section must be locked while calling this function.
1891 */
1892 static NTSTATUS load_dll( LPCWSTR load_path, LPCWSTR libname, DWORD flags, WINE_MODREF** pwm )
1893 {
1894 enum loadorder loadorder;
1895 WCHAR buffer[32];
1896 WCHAR *filename;
1897 ULONG size;
1898 WINE_MODREF *main_exe;
1899 HANDLE handle = 0;
1900 NTSTATUS nts;
1901
1902 TRACE( "looking for %s in %s\n", debugstr_w(libname), debugstr_w(load_path) );
1903
1904 *pwm = NULL;
1905 filename = buffer;
1906 size = sizeof(buffer);
1907 for (;;)
1908 {
1909 nts = find_dll_file( load_path, libname, filename, &size, pwm, &handle );
1910 if (nts == STATUS_SUCCESS) break;
1911 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
1912 if (nts != STATUS_BUFFER_TOO_SMALL) return nts;
1913 /* grow the buffer and retry */
1914 if (!(filename = RtlAllocateHeap( GetProcessHeap(), 0, size ))) return STATUS_NO_MEMORY;
1915 }
1916
1917 if (*pwm) /* found already loaded module */
1918 {
1919 if ((*pwm)->ldr.LoadCount != -1) (*pwm)->ldr.LoadCount++;
1920
1921 if (!(flags & DONT_RESOLVE_DLL_REFERENCES)) fixup_imports( *pwm, load_path );
1922
1923 TRACE("Found %s for %s at %p, count=%d\n",
1924 debugstr_w((*pwm)->ldr.FullDllName.Buffer), debugstr_w(libname),
1925 (*pwm)->ldr.BaseAddress, (*pwm)->ldr.LoadCount);
1926 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
1927 return STATUS_SUCCESS;
1928 }
1929
1930 main_exe = get_modref( NtCurrentTeb()->Peb->ImageBaseAddress );
1931 loadorder = get_load_order( main_exe ? main_exe->ldr.BaseDllName.Buffer : NULL, filename );
1932
1933 if (handle && is_fake_dll( handle ))
1934 {
1935 TRACE( "%s is a fake Wine dll\n", debugstr_w(filename) );
1936 NtClose( handle );
1937 handle = 0;
1938 }
1939
1940 switch(loadorder)
1941 {
1942 case LO_INVALID:
1943 nts = STATUS_NO_MEMORY;
1944 break;
1945 case LO_DISABLED:
1946 nts = STATUS_DLL_NOT_FOUND;
1947 break;
1948 case LO_NATIVE:
1949 case LO_NATIVE_BUILTIN:
1950 if (!handle) nts = STATUS_DLL_NOT_FOUND;
1951 else
1952 {
1953 nts = load_native_dll( load_path, filename, handle, flags, pwm );
1954 if (nts == STATUS_INVALID_FILE_FOR_SECTION)
1955 /* not in PE format, maybe it's a builtin */
1956 nts = load_builtin_dll( load_path, filename, handle, flags, pwm );
1957 }
1958 if (nts == STATUS_DLL_NOT_FOUND && loadorder == LO_NATIVE_BUILTIN)
1959 nts = load_builtin_dll( load_path, filename, 0, flags, pwm );
1960 break;
1961 case LO_BUILTIN:
1962 case LO_BUILTIN_NATIVE:
1963 case LO_DEFAULT: /* default is builtin,native */
1964 nts = load_builtin_dll( load_path, filename, handle, flags, pwm );
1965 if (!handle) break; /* nothing else we can try */
1966 /* file is not a builtin library, try without using the specified file */
1967 if (nts != STATUS_SUCCESS)
1968 nts = load_builtin_dll( load_path, filename, 0, flags, pwm );
1969 if (nts == STATUS_SUCCESS && loadorder == LO_DEFAULT &&
1970 (MODULE_InitDLL( *pwm, DLL_WINE_PREATTACH, NULL ) != STATUS_SUCCESS))
1971 {
1972 /* stub-only dll, try native */
1973 TRACE( "%s pre-attach returned FALSE, preferring native\n", debugstr_w(filename) );
1974 LdrUnloadDll( (*pwm)->ldr.BaseAddress );
1975 nts = STATUS_DLL_NOT_FOUND;
1976 }
1977 if (nts == STATUS_DLL_NOT_FOUND && loadorder != LO_BUILTIN)
1978 nts = load_native_dll( load_path, filename, handle, flags, pwm );
1979 break;
1980 }
1981
1982 if (nts == STATUS_SUCCESS)
1983 {
1984 /* Initialize DLL just loaded */
1985 TRACE("Loaded module %s (%s) at %p\n", debugstr_w(filename),
1986 ((*pwm)->ldr.Flags & LDR_WINE_INTERNAL) ? "builtin" : "native",
1987 (*pwm)->ldr.BaseAddress);
1988 if (handle) NtClose( handle );
1989 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
1990 return nts;
1991 }
1992
1993 WARN("Failed to load module %s; status=%x\n", debugstr_w(libname), nts);
1994 if (handle) NtClose( handle );
1995 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
1996 return nts;
1997 }
1998
1999 /******************************************************************
2000 * LdrLoadDll (NTDLL.@)
2001 */
2002 NTSTATUS WINAPI LdrLoadDll(LPCWSTR path_name, DWORD flags,
2003 const UNICODE_STRING *libname, HMODULE* hModule)
2004 {
2005 WINE_MODREF *wm;
2006 NTSTATUS nts;
2007
2008 RtlEnterCriticalSection( &loader_section );
2009
2010 if (!path_name) path_name = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
2011 nts = load_dll( path_name, libname->Buffer, flags, &wm );
2012
2013 if (nts == STATUS_SUCCESS && !(wm->ldr.Flags & LDR_DONT_RESOLVE_REFS))
2014 {
2015 nts = process_attach( wm, NULL );
2016 if (nts != STATUS_SUCCESS)
2017 {
2018 LdrUnloadDll(wm->ldr.BaseAddress);
2019 wm = NULL;
2020 }
2021 }
2022 *hModule = (wm) ? wm->ldr.BaseAddress : NULL;
2023
2024 RtlLeaveCriticalSection( &loader_section );
2025 return nts;
2026 }
2027
2028
2029 /******************************************************************
2030 * LdrGetDllHandle (NTDLL.@)
2031 */
2032 NTSTATUS WINAPI LdrGetDllHandle( LPCWSTR load_path, ULONG flags, const UNICODE_STRING *name, HMODULE *base )
2033 {
2034 NTSTATUS status;
2035 WCHAR buffer[128];
2036 WCHAR *filename;
2037 ULONG size;
2038 WINE_MODREF *wm;
2039
2040 RtlEnterCriticalSection( &loader_section );
2041
2042 if (!load_path) load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
2043
2044 filename = buffer;
2045 size = sizeof(buffer);
2046 for (;;)
2047 {
2048 status = find_dll_file( load_path, name->Buffer, filename, &size, &wm, NULL );
2049 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
2050 if (status != STATUS_BUFFER_TOO_SMALL) break;
2051 /* grow the buffer and retry */
2052 if (!(filename = RtlAllocateHeap( GetProcessHeap(), 0, size )))
2053 {
2054 status = STATUS_NO_MEMORY;
2055 break;
2056 }
2057 }
2058
2059 if (status == STATUS_SUCCESS)
2060 {
2061 if (wm) *base = wm->ldr.BaseAddress;
2062 else status = STATUS_DLL_NOT_FOUND;
2063 }
2064
2065 RtlLeaveCriticalSection( &loader_section );
2066 TRACE( "%s -> %p (load path %s)\n", debugstr_us(name), status ? NULL : *base, debugstr_w(load_path) );
2067 return status;
2068 }
2069
2070
2071 /******************************************************************
2072 * LdrAddRefDll (NTDLL.@)
2073 */
2074 NTSTATUS WINAPI LdrAddRefDll( ULONG flags, HMODULE module )
2075 {
2076 NTSTATUS ret = STATUS_SUCCESS;
2077 WINE_MODREF *wm;
2078
2079 if (flags) FIXME( "%p flags %x not implemented\n", module, flags );
2080
2081 RtlEnterCriticalSection( &loader_section );
2082
2083 if ((wm = get_modref( module )))
2084 {
2085 if (wm->ldr.LoadCount != -1) wm->ldr.LoadCount++;
2086 TRACE( "(%s) ldr.LoadCount: %d\n", debugstr_w(wm->ldr.BaseDllName.Buffer), wm->ldr.LoadCount );
2087 }
2088 else ret = STATUS_INVALID_PARAMETER;
2089
2090 RtlLeaveCriticalSection( &loader_section );
2091 return ret;
2092 }
2093
2094
2095 /***********************************************************************
2096 * LdrProcessRelocationBlock (NTDLL.@)
2097 *
2098 * Apply relocations to a given page of a mapped PE image.
2099 */
2100 IMAGE_BASE_RELOCATION * WINAPI LdrProcessRelocationBlock( void *page, UINT count,
2101 USHORT *relocs, INT_PTR delta )
2102 {
2103 while (count--)
2104 {
2105 USHORT offset = *relocs & 0xfff;
2106 int type = *relocs >> 12;
2107 switch(type)
2108 {
2109 case IMAGE_REL_BASED_ABSOLUTE:
2110 break;
2111 #ifdef __i386__
2112 case IMAGE_REL_BASED_HIGH:
2113 *(short *)((char *)page + offset) += HIWORD(delta);
2114 break;
2115 case IMAGE_REL_BASED_LOW:
2116 *(short *)((char *)page + offset) += LOWORD(delta);
2117 break;
2118 case IMAGE_REL_BASED_HIGHLOW:
2119 *(int *)((char *)page + offset) += delta;
2120 break;
2121 #elif defined(__x86_64__)
2122 case IMAGE_REL_BASED_DIR64:
2123 *(INT_PTR *)((char *)page + offset) += delta;
2124 break;
2125 #endif
2126 default:
2127 FIXME("Unknown/unsupported fixup type %x.\n", type);
2128 return NULL;
2129 }
2130 relocs++;
2131 }
2132 return (IMAGE_BASE_RELOCATION *)relocs; /* return address of next block */
2133 }
2134
2135
2136 /******************************************************************
2137 * LdrQueryProcessModuleInformation
2138 *
2139 */
2140 NTSTATUS WINAPI LdrQueryProcessModuleInformation(PSYSTEM_MODULE_INFORMATION smi,
2141 ULONG buf_size, ULONG* req_size)
2142 {
2143 SYSTEM_MODULE* sm = &smi->Modules[0];
2144 ULONG size = sizeof(ULONG);
2145 NTSTATUS nts = STATUS_SUCCESS;
2146 ANSI_STRING str;
2147 char* ptr;
2148 PLIST_ENTRY mark, entry;
2149 PLDR_MODULE mod;
2150 WORD id = 0;
2151
2152 smi->ModulesCount = 0;
2153
2154 RtlEnterCriticalSection( &loader_section );
2155 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
2156 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
2157 {
2158 mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
2159 size += sizeof(*sm);
2160 if (size <= buf_size)
2161 {
2162 sm->Reserved1 = 0; /* FIXME */
2163 sm->Reserved2 = 0; /* FIXME */
2164 sm->ImageBaseAddress = mod->BaseAddress;
2165 sm->ImageSize = mod->SizeOfImage;
2166 sm->Flags = mod->Flags;
2167 sm->Id = id++;
2168 sm->Rank = 0; /* FIXME */
2169 sm->Unknown = 0; /* FIXME */
2170 str.Length = 0;
2171 str.MaximumLength = MAXIMUM_FILENAME_LENGTH;
2172 str.Buffer = (char*)sm->Name;
2173 RtlUnicodeStringToAnsiString(&str, &mod->FullDllName, FALSE);
2174 ptr = strrchr(str.Buffer, '\\');
2175 sm->NameOffset = (ptr != NULL) ? (ptr - str.Buffer + 1) : 0;
2176
2177 smi->ModulesCount++;
2178 sm++;
2179 }
2180 else nts = STATUS_INFO_LENGTH_MISMATCH;
2181 }
2182 RtlLeaveCriticalSection( &loader_section );
2183
2184 if (req_size) *req_size = size;
2185
2186 return nts;
2187 }
2188
2189
2190 /******************************************************************
2191 * RtlDllShutdownInProgress (NTDLL.@)
2192 */
2193 BOOLEAN WINAPI RtlDllShutdownInProgress(void)
2194 {
2195 return process_detaching;
2196 }
2197
2198
2199 /******************************************************************
2200 * LdrShutdownProcess (NTDLL.@)
2201 *
2202 */
2203 void WINAPI LdrShutdownProcess(void)
2204 {
2205 TRACE("()\n");
2206 process_detach( TRUE, (LPVOID)1 );
2207 }
2208
2209 /******************************************************************
2210 * LdrShutdownThread (NTDLL.@)
2211 *
2212 */
2213 void WINAPI LdrShutdownThread(void)
2214 {
2215 PLIST_ENTRY mark, entry;
2216 PLDR_MODULE mod;
2217
2218 TRACE("()\n");
2219
2220 /* don't do any detach calls if process is exiting */
2221 if (process_detaching) return;
2222 /* FIXME: there is still a race here */
2223
2224 RtlEnterCriticalSection( &loader_section );
2225
2226 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
2227 for (entry = mark->Blink; entry != mark; entry = entry->Blink)
2228 {
2229 mod = CONTAINING_RECORD(entry, LDR_MODULE,
2230 InInitializationOrderModuleList);
2231 if ( !(mod->Flags & LDR_PROCESS_ATTACHED) )
2232 continue;
2233 if ( mod->Flags & LDR_NO_DLL_CALLS )
2234 continue;
2235
2236 MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr),
2237 DLL_THREAD_DETACH, NULL );
2238 }
2239
2240 RtlLeaveCriticalSection( &loader_section );
2241 RtlFreeHeap( GetProcessHeap(), 0, NtCurrentTeb()->ThreadLocalStoragePointer );
2242 }
2243
2244
2245 /***********************************************************************
2246 * free_modref
2247 *
2248 */
2249 static void free_modref( WINE_MODREF *wm )
2250 {
2251 RemoveEntryList(&wm->ldr.InLoadOrderModuleList);
2252 RemoveEntryList(&wm->ldr.InMemoryOrderModuleList);
2253 if (wm->ldr.InInitializationOrderModuleList.Flink)
2254 RemoveEntryList(&wm->ldr.InInitializationOrderModuleList);
2255
2256 TRACE(" unloading %s\n", debugstr_w(wm->ldr.FullDllName.Buffer));
2257 if (!TRACE_ON(module))
2258 TRACE_(loaddll)("Unloaded module %s : %s\n",
2259 debugstr_w(wm->ldr.FullDllName.Buffer),
2260 (wm->ldr.Flags & LDR_WINE_INTERNAL) ? "builtin" : "native" );
2261
2262 SERVER_START_REQ( unload_dll )
2263 {
2264 req->base = wine_server_client_ptr( wm->ldr.BaseAddress );
2265 wine_server_call( req );
2266 }
2267 SERVER_END_REQ;
2268
2269 RtlReleaseActivationContext( wm->ldr.ActivationContext );
2270 NtUnmapViewOfSection( NtCurrentProcess(), wm->ldr.BaseAddress );
2271 if (wm->ldr.Flags & LDR_WINE_INTERNAL) wine_dll_unload( wm->ldr.SectionHandle );
2272 if (cached_modref == wm) cached_modref = NULL;
2273 RtlFreeUnicodeString( &wm->ldr.FullDllName );
2274 RtlFreeHeap( GetProcessHeap(), 0, wm->deps );
2275 RtlFreeHeap( GetProcessHeap(), 0, wm );
2276 }
2277
2278 /***********************************************************************
2279 * MODULE_FlushModrefs
2280 *
2281 * Remove all unused modrefs and call the internal unloading routines
2282 * for the library type.
2283 *
2284 * The loader_section must be locked while calling this function.
2285 */
2286 static void MODULE_FlushModrefs(void)
2287 {
2288 PLIST_ENTRY mark, entry, prev;
2289 PLDR_MODULE mod;
2290 WINE_MODREF*wm;
2291
2292 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
2293 for (entry = mark->Blink; entry != mark; entry = prev)
2294 {
2295 mod = CONTAINING_RECORD(entry, LDR_MODULE, InInitializationOrderModuleList);
2296 wm = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
2297 prev = entry->Blink;
2298 if (!mod->LoadCount) free_modref( wm );
2299 }
2300
2301 /* check load order list too for modules that haven't been initialized yet */
2302 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
2303 for (entry = mark->Blink; entry != mark; entry = prev)
2304 {
2305 mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
2306 wm = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
2307 prev = entry->Blink;
2308 if (!mod->LoadCount) free_modref( wm );
2309 }
2310 }
2311
2312 /***********************************************************************
2313 * MODULE_DecRefCount
2314 *
2315 * The loader_section must be locked while calling this function.
2316 */
2317 static void MODULE_DecRefCount( WINE_MODREF *wm )
2318 {
2319 int i;
2320
2321 if ( wm->ldr.Flags & LDR_UNLOAD_IN_PROGRESS )
2322 return;
2323
2324 if ( wm->ldr.LoadCount <= 0 )
2325 return;
2326
2327 --wm->ldr.LoadCount;
2328 TRACE("(%s) ldr.LoadCount: %d\n", debugstr_w(wm->ldr.BaseDllName.Buffer), wm->ldr.LoadCount );
2329
2330 if ( wm->ldr.LoadCount == 0 )
2331 {
2332 wm->ldr.Flags |= LDR_UNLOAD_IN_PROGRESS;
2333
2334 for ( i = 0; i < wm->nDeps; i++ )
2335 if ( wm->deps[i] )
2336 MODULE_DecRefCount( wm->deps[i] );
2337
2338 wm->ldr.Flags &= ~LDR_UNLOAD_IN_PROGRESS;
2339 }
2340 }
2341
2342 /******************************************************************
2343 * LdrUnloadDll (NTDLL.@)
2344 *
2345 *
2346 */
2347 NTSTATUS WINAPI LdrUnloadDll( HMODULE hModule )
2348 {
2349 NTSTATUS retv = STATUS_SUCCESS;
2350
2351 TRACE("(%p)\n", hModule);
2352
2353 RtlEnterCriticalSection( &loader_section );
2354
2355 /* if we're stopping the whole process (and forcing the removal of all
2356 * DLLs) the library will be freed anyway
2357 */
2358 if (!process_detaching)
2359 {
2360 WINE_MODREF *wm;
2361
2362 free_lib_count++;
2363 if ((wm = get_modref( hModule )) != NULL)
2364 {
2365 TRACE("(%s) - START\n", debugstr_w(wm->ldr.BaseDllName.Buffer));
2366
2367 /* Recursively decrement reference counts */
2368 MODULE_DecRefCount( wm );
2369
2370 /* Call process detach notifications */
2371 if ( free_lib_count <= 1 )
2372 {
2373 process_detach( FALSE, NULL );
2374 MODULE_FlushModrefs();
2375 }
2376
2377 TRACE("END\n");
2378 }
2379 else
2380 retv = STATUS_DLL_NOT_FOUND;
2381
2382 free_lib_count--;
2383 }
2384
2385 RtlLeaveCriticalSection( &loader_section );
2386
2387 return retv;
2388 }
2389
2390 /***********************************************************************
2391 * RtlImageNtHeader (NTDLL.@)
2392 */
2393 PIMAGE_NT_HEADERS WINAPI RtlImageNtHeader(HMODULE hModule)
2394 {
2395 IMAGE_NT_HEADERS *ret;
2396
2397 __TRY
2398 {
2399 IMAGE_DOS_HEADER *dos = (IMAGE_DOS_HEADER *)hModule;
2400
2401 ret = NULL;
2402 if (dos->e_magic == IMAGE_DOS_SIGNATURE)
2403 {
2404 ret = (IMAGE_NT_HEADERS *)((char *)dos + dos->e_lfanew);
2405 if (ret->Signature != IMAGE_NT_SIGNATURE) ret = NULL;
2406 }
2407 }
2408 __EXCEPT_PAGE_FAULT
2409 {
2410 return NULL;
2411 }
2412 __ENDTRY
2413 return ret;
2414 }
2415
2416
2417 /***********************************************************************
2418 * attach_process_dlls
2419 *
2420 * Initial attach to all the dlls loaded by the process.
2421 */
2422 static NTSTATUS attach_process_dlls( void *wm )
2423 {
2424 NTSTATUS status;
2425
2426 pthread_sigmask( SIG_UNBLOCK, &server_block_set, NULL );
2427
2428 RtlEnterCriticalSection( &loader_section );
2429 if ((status = process_attach( wm, (LPVOID)1 )) != STATUS_SUCCESS)
2430 {
2431 if (last_failed_modref)
2432 ERR( "%s failed to initialize, aborting\n",
2433 debugstr_w(last_failed_modref->ldr.BaseDllName.Buffer) + 1 );
2434 return status;
2435 }
2436 attach_implicitly_loaded_dlls( (LPVOID)1 );
2437 RtlLeaveCriticalSection( &loader_section );
2438 return status;
2439 }
2440
2441
2442 /******************************************************************
2443 * LdrInitializeThunk (NTDLL.@)
2444 *
2445 */
2446 void WINAPI LdrInitializeThunk( ULONG unknown1, ULONG unknown2, ULONG unknown3, ULONG unknown4 )
2447 {
2448 NTSTATUS status;
2449 WINE_MODREF *wm;
2450 LPCWSTR load_path;
2451 SIZE_T stack_size;
2452 PEB *peb = NtCurrentTeb()->Peb;
2453 IMAGE_NT_HEADERS *nt = RtlImageNtHeader( peb->ImageBaseAddress );
2454
2455 if (main_exe_file) NtClose( main_exe_file ); /* at this point the main module is created */
2456
2457 /* allocate the modref for the main exe (if not already done) */
2458 wm = get_modref( peb->ImageBaseAddress );
2459 assert( wm );
2460 if (wm->ldr.Flags & LDR_IMAGE_IS_DLL)
2461 {
2462 ERR("%s is a dll, not an executable\n", debugstr_w(wm->ldr.FullDllName.Buffer) );
2463 exit(1);
2464 }
2465
2466 peb->LoaderLock = &loader_section;
2467 peb->ProcessParameters->ImagePathName = wm->ldr.FullDllName;
2468 version_init( wm->ldr.FullDllName.Buffer );
2469
2470 /* the main exe needs to be the first in the load order list */
2471 RemoveEntryList( &wm->ldr.InLoadOrderModuleList );
2472 InsertHeadList( &peb->LdrData->InLoadOrderModuleList, &wm->ldr.InLoadOrderModuleList );
2473
2474 stack_size = max( nt->OptionalHeader.SizeOfStackReserve, nt->OptionalHeader.SizeOfStackCommit );
2475 if (stack_size < 1024 * 1024) stack_size = 1024 * 1024; /* Xlib needs a large stack */
2476
2477 if ((status = virtual_alloc_thread_stack( NULL, stack_size )) != STATUS_SUCCESS) goto error;
2478 if ((status = server_init_process_done()) != STATUS_SUCCESS) goto error;
2479
2480 actctx_init();
2481 load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
2482 if ((status = fixup_imports( wm, load_path )) != STATUS_SUCCESS) goto error;
2483 if ((status = alloc_process_tls()) != STATUS_SUCCESS) goto error;
2484 if ((status = alloc_thread_tls()) != STATUS_SUCCESS) goto error;
2485 if (nt->FileHeader.Characteristics & IMAGE_FILE_LARGE_ADDRESS_AWARE) VIRTUAL_UseLargeAddressSpace();
2486
2487 status = wine_call_on_stack( attach_process_dlls, wm, NtCurrentTeb()->Tib.StackBase );
2488 if (status != STATUS_SUCCESS) goto error;
2489
2490 virtual_clear_thread_stack();
2491 return;
2492
2493 error:
2494 ERR( "Main exe initialization for %s failed, status %x\n",
2495 debugstr_w(peb->ProcessParameters->ImagePathName.Buffer), status );
2496 NtTerminateProcess( GetCurrentProcess(), status );
2497 }
2498
2499
2500 /***********************************************************************
2501 * RtlImageDirectoryEntryToData (NTDLL.@)
2502 */
2503 PVOID WINAPI RtlImageDirectoryEntryToData( HMODULE module, BOOL image, WORD dir, ULONG *size )
2504 {
2505 const IMAGE_NT_HEADERS *nt;
2506 DWORD addr;
2507
2508 if ((ULONG_PTR)module & 1) /* mapped as data file */
2509 {
2510 module = (HMODULE)((ULONG_PTR)module & ~1);
2511 image = FALSE;
2512 }
2513 if (!(nt = RtlImageNtHeader( module ))) return NULL;
2514 if (dir >= nt->OptionalHeader.NumberOfRvaAndSizes) return NULL;
2515 if (!(addr = nt->OptionalHeader.DataDirectory[dir].VirtualAddress)) return NULL;
2516 *size = nt->OptionalHeader.DataDirectory[dir].Size;
2517 if (image || addr < nt->OptionalHeader.SizeOfHeaders) return (char *)module + addr;
2518
2519 /* not mapped as image, need to find the section containing the virtual address */
2520 return RtlImageRvaToVa( nt, module, addr, NULL );
2521 }
2522
2523
2524 /***********************************************************************
2525 * RtlImageRvaToSection (NTDLL.@)
2526 */
2527 PIMAGE_SECTION_HEADER WINAPI RtlImageRvaToSection( const IMAGE_NT_HEADERS *nt,
2528 HMODULE module, DWORD rva )
2529 {
2530 int i;
2531 const IMAGE_SECTION_HEADER *sec;
2532
2533 sec = (const IMAGE_SECTION_HEADER*)((const char*)&nt->OptionalHeader +
2534 nt->FileHeader.SizeOfOptionalHeader);
2535 for (i = 0; i < nt->FileHeader.NumberOfSections; i++, sec++)
2536 {
2537 if ((sec->VirtualAddress <= rva) && (sec->VirtualAddress + sec->SizeOfRawData > rva))
2538 return (PIMAGE_SECTION_HEADER)sec;
2539 }
2540 return NULL;
2541 }
2542
2543
2544 /***********************************************************************
2545 * RtlImageRvaToVa (NTDLL.@)
2546 */
2547 PVOID WINAPI RtlImageRvaToVa( const IMAGE_NT_HEADERS *nt, HMODULE module,
2548 DWORD rva, IMAGE_SECTION_HEADER **section )
2549 {
2550 IMAGE_SECTION_HEADER *sec;
2551
2552 if (section && *section) /* try this section first */
2553 {
2554 sec = *section;
2555 if ((sec->VirtualAddress <= rva) && (sec->VirtualAddress + sec->SizeOfRawData > rva))
2556 goto found;
2557 }
2558 if (!(sec = RtlImageRvaToSection( nt, module, rva ))) return NULL;
2559 found:
2560 if (section) *section = sec;
2561 return (char *)module + sec->PointerToRawData + (rva - sec->VirtualAddress);
2562 }
2563
2564
2565 /***********************************************************************
2566 * RtlPcToFileHeader (NTDLL.@)
2567 */
2568 PVOID WINAPI RtlPcToFileHeader( PVOID pc, PVOID *address )
2569 {
2570 LDR_MODULE *module;
2571 PVOID ret = NULL;
2572
2573 RtlEnterCriticalSection( &loader_section );
2574 if (!LdrFindEntryForAddress( pc, &module )) ret = module->BaseAddress;
2575 RtlLeaveCriticalSection( &loader_section );
2576 *address = ret;
2577 return ret;
2578 }
2579
2580
2581 /***********************************************************************
2582 * NtLoadDriver (NTDLL.@)
2583 * ZwLoadDriver (NTDLL.@)
2584 */
2585 NTSTATUS WINAPI NtLoadDriver( const UNICODE_STRING *DriverServiceName )
2586 {
2587 FIXME("(%p), stub!\n",DriverServiceName);
2588 return STATUS_NOT_IMPLEMENTED;
2589 }
2590
2591
2592 /***********************************************************************
2593 * NtUnloadDriver (NTDLL.@)
2594 * ZwUnloadDriver (NTDLL.@)
2595 */
2596 NTSTATUS WINAPI NtUnloadDriver( const UNICODE_STRING *DriverServiceName )
2597 {
2598 FIXME("(%p), stub!\n",DriverServiceName);
2599 return STATUS_NOT_IMPLEMENTED;
2600 }
2601
2602
2603 /******************************************************************
2604 * DllMain (NTDLL.@)
2605 */
2606 BOOL WINAPI DllMain( HINSTANCE inst, DWORD reason, LPVOID reserved )
2607 {
2608 if (reason == DLL_PROCESS_ATTACH) LdrDisableThreadCalloutsForDll( inst );
2609 return TRUE;
2610 }
2611
2612
2613 /******************************************************************
2614 * __wine_init_windows_dir (NTDLL.@)
2615 *
2616 * Windows and system dir initialization once kernel32 has been loaded.
2617 */
2618 void CDECL __wine_init_windows_dir( const WCHAR *windir, const WCHAR *sysdir )
2619 {
2620 PLIST_ENTRY mark, entry;
2621 LPWSTR buffer, p;
2622
2623 RtlCreateUnicodeString( &windows_dir, windir );
2624 RtlCreateUnicodeString( &system_dir, sysdir );
2625 strcpyW( user_shared_data->NtSystemRoot, windir );
2626
2627 /* prepend the system dir to the name of the already created modules */
2628 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
2629 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
2630 {
2631 LDR_MODULE *mod = CONTAINING_RECORD( entry, LDR_MODULE, InLoadOrderModuleList );
2632
2633 assert( mod->Flags & LDR_WINE_INTERNAL );
2634
2635 buffer = RtlAllocateHeap( GetProcessHeap(), 0,
2636 system_dir.Length + mod->FullDllName.Length + 2*sizeof(WCHAR) );
2637 if (!buffer) continue;
2638 strcpyW( buffer, system_dir.Buffer );
2639 p = buffer + strlenW( buffer );
2640 if (p > buffer && p[-1] != '\\') *p++ = '\\';
2641 strcpyW( p, mod->FullDllName.Buffer );
2642 RtlInitUnicodeString( &mod->FullDllName, buffer );
2643 RtlInitUnicodeString( &mod->BaseDllName, p );
2644 }
2645 }
2646
2647
2648 /***********************************************************************
2649 * __wine_process_init
2650 */
2651 void __wine_process_init(void)
2652 {
2653 static const WCHAR kernel32W[] = {'k','e','r','n','e','l','3','2','.','d','l','l',0};
2654
2655 WINE_MODREF *wm;
2656 NTSTATUS status;
2657 ANSI_STRING func_name;
2658 void (* DECLSPEC_NORETURN CDECL init_func)(void);
2659 extern mode_t FILE_umask;
2660
2661 main_exe_file = thread_init();
2662
2663 /* retrieve current umask */
2664 FILE_umask = umask(0777);
2665 umask( FILE_umask );
2666
2667 /* setup the load callback and create ntdll modref */
2668 wine_dll_set_callback( load_builtin_callback );
2669
2670 if ((status = load_builtin_dll( NULL, kernel32W, 0, 0, &wm )) != STATUS_SUCCESS)
2671 {
2672 MESSAGE( "wine: could not load kernel32.dll, status %x\n", status );
2673 exit(1);
2674 }
2675 RtlInitAnsiString( &func_name, "UnhandledExceptionFilter" );
2676 LdrGetProcedureAddress( wm->ldr.BaseAddress, &func_name, 0, (void **)&unhandled_exception_filter );
2677
2678 RtlInitAnsiString( &func_name, "__wine_kernel_init" );
2679 if ((status = LdrGetProcedureAddress( wm->ldr.BaseAddress, &func_name,
2680 0, (void **)&init_func )) != STATUS_SUCCESS)
2681 {
2682 MESSAGE( "wine: could not find __wine_kernel_init in kernel32.dll, status %x\n", status );
2683 exit(1);
2684 }
2685 init_func();
2686 }
useful hacks and other patches not (yet) suitable for mainline