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dinput: Support IUnknown in the IDirectInputEffect COM object.
[wine.git] / dlls / ntdll / loader.c
bloba0049feecfffa9a65dceb83fc05ee385d88fb9b6
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 #include "ntstatus.h"
32 #define WIN32_NO_STATUS
33 #define NONAMELESSUNION
34 #include "windef.h"
35 #include "winnt.h"
36 #include "winternl.h"
37 #include "delayloadhandler.h"
38
39 #include "wine/exception.h"
40 #include "wine/library.h"
41 #include "wine/unicode.h"
42 #include "wine/debug.h"
43 #include "wine/server.h"
44 #include "ntdll_misc.h"
45 #include "ddk/wdm.h"
46
47 WINE_DEFAULT_DEBUG_CHANNEL(module);
48 WINE_DECLARE_DEBUG_CHANNEL(relay);
49 WINE_DECLARE_DEBUG_CHANNEL(snoop);
50 WINE_DECLARE_DEBUG_CHANNEL(loaddll);
51 WINE_DECLARE_DEBUG_CHANNEL(imports);
52 WINE_DECLARE_DEBUG_CHANNEL(pid);
53
54 #ifdef _WIN64
55 #define DEFAULT_SECURITY_COOKIE_64 (((ULONGLONG)0x00002b99 << 32) | 0x2ddfa232)
56 #endif
57 #define DEFAULT_SECURITY_COOKIE_32 0xbb40e64e
58 #define DEFAULT_SECURITY_COOKIE_16 (DEFAULT_SECURITY_COOKIE_32 >> 16)
59
60 /* we don't want to include winuser.h */
61 #define RT_MANIFEST ((ULONG_PTR)24)
62 #define ISOLATIONAWARE_MANIFEST_RESOURCE_ID ((ULONG_PTR)2)
63
64 typedef DWORD (CALLBACK *DLLENTRYPROC)(HMODULE,DWORD,LPVOID);
65
66 static BOOL process_detaching = FALSE; /* set on process detach to avoid deadlocks with thread detach */
67 static int free_lib_count; /* recursion depth of LdrUnloadDll calls */
68
69 static const char * const reason_names[] =
70 {
71 "PROCESS_DETACH",
72 "PROCESS_ATTACH",
73 "THREAD_ATTACH",
74 "THREAD_DETACH",
75 NULL, NULL, NULL, NULL,
76 "WINE_PREATTACH"
77 };
78
79 static const WCHAR dllW[] = {'.','d','l','l',0};
80
81 /* internal representation of 32bit modules. per process. */
82 typedef struct _wine_modref
83 {
84 LDR_MODULE ldr;
85 int nDeps;
86 struct _wine_modref **deps;
87 } WINE_MODREF;
88
89 /* info about the current builtin dll load */
90 /* used to keep track of things across the register_dll constructor call */
91 struct builtin_load_info
92 {
93 const WCHAR *load_path;
94 const WCHAR *filename;
95 NTSTATUS status;
96 WINE_MODREF *wm;
97 };
98
99 static struct builtin_load_info default_load_info;
100 static struct builtin_load_info *builtin_load_info = &default_load_info;
101
102 static HANDLE main_exe_file;
103 static UINT tls_module_count; /* number of modules with TLS directory */
104 static IMAGE_TLS_DIRECTORY *tls_dirs; /* array of TLS directories */
105 LIST_ENTRY tls_links = { &tls_links, &tls_links };
106
107 static RTL_CRITICAL_SECTION loader_section;
108 static RTL_CRITICAL_SECTION_DEBUG critsect_debug =
109 {
110 0, 0, &loader_section,
111 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
112 0, 0, { (DWORD_PTR)(__FILE__ ": loader_section") }
113 };
114 static RTL_CRITICAL_SECTION loader_section = { &critsect_debug, -1, 0, 0, 0, 0 };
115
116 static WINE_MODREF *cached_modref;
117 static WINE_MODREF *current_modref;
118 static WINE_MODREF *last_failed_modref;
119
120 static NTSTATUS load_dll( LPCWSTR load_path, LPCWSTR libname, DWORD flags, WINE_MODREF** pwm );
121 static NTSTATUS process_attach( WINE_MODREF *wm, LPVOID lpReserved );
122 static FARPROC find_ordinal_export( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports,
123 DWORD exp_size, DWORD ordinal, LPCWSTR load_path );
124 static FARPROC find_named_export( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports,
125 DWORD exp_size, const char *name, int hint, LPCWSTR load_path );
126
127 /* convert PE image VirtualAddress to Real Address */
128 static inline void *get_rva( HMODULE module, DWORD va )
129 {
130 return (void *)((char *)module + va);
131 }
132
133 /* check whether the file name contains a path */
134 static inline BOOL contains_path( LPCWSTR name )
135 {
136 return ((*name && (name[1] == ':')) || strchrW(name, '/') || strchrW(name, '\\'));
137 }
138
139 /* convert from straight ASCII to Unicode without depending on the current codepage */
140 static inline void ascii_to_unicode( WCHAR *dst, const char *src, size_t len )
141 {
142 while (len--) *dst++ = (unsigned char)*src++;
143 }
144
145
146 /*************************************************************************
147 * call_dll_entry_point
148 *
149 * Some brain-damaged dlls (ir32_32.dll for instance) modify ebx in
150 * their entry point, so we need a small asm wrapper. Testing indicates
151 * that only modifying esi leads to a crash, so use this one to backup
152 * ebp while running the dll entry proc.
153 */
154 #ifdef __i386__
155 extern BOOL call_dll_entry_point( DLLENTRYPROC proc, void *module, UINT reason, void *reserved );
156 __ASM_GLOBAL_FUNC(call_dll_entry_point,
157 "pushl %ebp\n\t"
158 __ASM_CFI(".cfi_adjust_cfa_offset 4\n\t")
159 __ASM_CFI(".cfi_rel_offset %ebp,0\n\t")
160 "movl %esp,%ebp\n\t"
161 __ASM_CFI(".cfi_def_cfa_register %ebp\n\t")
162 "pushl %ebx\n\t"
163 __ASM_CFI(".cfi_rel_offset %ebx,-4\n\t")
164 "pushl %esi\n\t"
165 __ASM_CFI(".cfi_rel_offset %esi,-8\n\t")
166 "pushl %edi\n\t"
167 __ASM_CFI(".cfi_rel_offset %edi,-12\n\t")
168 "movl %ebp,%esi\n\t"
169 __ASM_CFI(".cfi_def_cfa_register %esi\n\t")
170 "pushl 20(%ebp)\n\t"
171 "pushl 16(%ebp)\n\t"
172 "pushl 12(%ebp)\n\t"
173 "movl 8(%ebp),%eax\n\t"
174 "call *%eax\n\t"
175 "movl %esi,%ebp\n\t"
176 __ASM_CFI(".cfi_def_cfa_register %ebp\n\t")
177 "leal -12(%ebp),%esp\n\t"
178 "popl %edi\n\t"
179 __ASM_CFI(".cfi_same_value %edi\n\t")
180 "popl %esi\n\t"
181 __ASM_CFI(".cfi_same_value %esi\n\t")
182 "popl %ebx\n\t"
183 __ASM_CFI(".cfi_same_value %ebx\n\t")
184 "popl %ebp\n\t"
185 __ASM_CFI(".cfi_def_cfa %esp,4\n\t")
186 __ASM_CFI(".cfi_same_value %ebp\n\t")
187 "ret" )
188 #else /* __i386__ */
189 static inline BOOL call_dll_entry_point( DLLENTRYPROC proc, void *module,
190 UINT reason, void *reserved )
191 {
192 return proc( module, reason, reserved );
193 }
194 #endif /* __i386__ */
195
196
197 #if defined(__i386__) || defined(__x86_64__) || defined(__arm__)
198 /*************************************************************************
199 * stub_entry_point
200 *
201 * Entry point for stub functions.
202 */
203 static void stub_entry_point( const char *dll, const char *name, void *ret_addr )
204 {
205 EXCEPTION_RECORD rec;
206
207 rec.ExceptionCode = EXCEPTION_WINE_STUB;
208 rec.ExceptionFlags = EH_NONCONTINUABLE;
209 rec.ExceptionRecord = NULL;
210 rec.ExceptionAddress = ret_addr;
211 rec.NumberParameters = 2;
212 rec.ExceptionInformation[0] = (ULONG_PTR)dll;
213 rec.ExceptionInformation[1] = (ULONG_PTR)name;
214 for (;;) RtlRaiseException( &rec );
215 }
216
217
218 #include "pshpack1.h"
219 #ifdef __i386__
220 struct stub
221 {
222 BYTE pushl1; /* pushl $name */
223 const char *name;
224 BYTE pushl2; /* pushl $dll */
225 const char *dll;
226 BYTE call; /* call stub_entry_point */
227 DWORD entry;
228 };
229 #elif defined(__arm__)
230 struct stub
231 {
232 BYTE ldr_r0[4]; /* ldr r0, $dll */
233 BYTE mov_pc_pc1[4]; /* mov pc,pc */
234 const char *dll;
235 BYTE ldr_r1[4]; /* ldr r1, $name */
236 BYTE mov_pc_pc2[4]; /* mov pc,pc */
237 const char *name;
238 BYTE mov_r2_lr[4]; /* mov r2, lr */
239 BYTE ldr_pc_pc[4]; /* ldr pc, [pc, #-4] */
240 const void* entry;
241 };
242 #else
243 struct stub
244 {
245 BYTE movq_rdi[2]; /* movq $dll,%rdi */
246 const char *dll;
247 BYTE movq_rsi[2]; /* movq $name,%rsi */
248 const char *name;
249 BYTE movq_rsp_rdx[4]; /* movq (%rsp),%rdx */
250 BYTE movq_rax[2]; /* movq $entry, %rax */
251 const void* entry;
252 BYTE jmpq_rax[2]; /* jmp %rax */
253 };
254 #endif
255 #include "poppack.h"
256
257 /*************************************************************************
258 * allocate_stub
259 *
260 * Allocate a stub entry point.
261 */
262 static ULONG_PTR allocate_stub( const char *dll, const char *name )
263 {
264 #define MAX_SIZE 65536
265 static struct stub *stubs;
266 static unsigned int nb_stubs;
267 struct stub *stub;
268
269 if (nb_stubs >= MAX_SIZE / sizeof(*stub)) return 0xdeadbeef;
270
271 if (!stubs)
272 {
273 SIZE_T size = MAX_SIZE;
274 if (NtAllocateVirtualMemory( NtCurrentProcess(), (void **)&stubs, 0, &size,
275 MEM_COMMIT, PAGE_EXECUTE_READWRITE ) != STATUS_SUCCESS)
276 return 0xdeadbeef;
277 }
278 stub = &stubs[nb_stubs++];
279 #ifdef __i386__
280 stub->pushl1 = 0x68; /* pushl $name */
281 stub->name = name;
282 stub->pushl2 = 0x68; /* pushl $dll */
283 stub->dll = dll;
284 stub->call = 0xe8; /* call stub_entry_point */
285 stub->entry = (BYTE *)stub_entry_point - (BYTE *)(&stub->entry + 1);
286 #elif defined(__arm__)
287 stub->ldr_r0[0] = 0x00; /* ldr r0, $dll */
288 stub->ldr_r0[1] = 0x00;
289 stub->ldr_r0[2] = 0x9f;
290 stub->ldr_r0[3] = 0xe5;
291 stub->mov_pc_pc1[0] = 0x0f; /* mov pc,pc */
292 stub->mov_pc_pc1[1] = 0xf0;
293 stub->mov_pc_pc1[2] = 0xa0;
294 stub->mov_pc_pc1[3] = 0xe1;
295 stub->dll = dll;
296 stub->ldr_r1[0] = 0x00; /* ldr r1, $name */
297 stub->ldr_r1[1] = 0x10;
298 stub->ldr_r1[2] = 0x9f;
299 stub->ldr_r1[3] = 0xe5;
300 stub->mov_pc_pc2[0] = 0x0f; /* mov pc,pc */
301 stub->mov_pc_pc2[1] = 0xf0;
302 stub->mov_pc_pc2[2] = 0xa0;
303 stub->mov_pc_pc2[3] = 0xe1;
304 stub->name = name;
305 stub->mov_r2_lr[0] = 0x0e; /* mov r2, lr */
306 stub->mov_r2_lr[1] = 0x20;
307 stub->mov_r2_lr[2] = 0xa0;
308 stub->mov_r2_lr[3] = 0xe1;
309 stub->ldr_pc_pc[0] = 0x04; /* ldr pc, [pc, #-4] */
310 stub->ldr_pc_pc[1] = 0xf0;
311 stub->ldr_pc_pc[2] = 0x1f;
312 stub->ldr_pc_pc[3] = 0xe5;
313 stub->entry = stub_entry_point;
314 #else
315 stub->movq_rdi[0] = 0x48; /* movq $dll,%rdi */
316 stub->movq_rdi[1] = 0xbf;
317 stub->dll = dll;
318 stub->movq_rsi[0] = 0x48; /* movq $name,%rsi */
319 stub->movq_rsi[1] = 0xbe;
320 stub->name = name;
321 stub->movq_rsp_rdx[0] = 0x48; /* movq (%rsp),%rdx */
322 stub->movq_rsp_rdx[1] = 0x8b;
323 stub->movq_rsp_rdx[2] = 0x14;
324 stub->movq_rsp_rdx[3] = 0x24;
325 stub->movq_rax[0] = 0x48; /* movq $entry, %rax */
326 stub->movq_rax[1] = 0xb8;
327 stub->entry = stub_entry_point;
328 stub->jmpq_rax[0] = 0xff; /* jmp %rax */
329 stub->jmpq_rax[1] = 0xe0;
330 #endif
331 return (ULONG_PTR)stub;
332 }
333
334 #else /* __i386__ */
335 static inline ULONG_PTR allocate_stub( const char *dll, const char *name ) { return 0xdeadbeef; }
336 #endif /* __i386__ */
337
338
339 /*************************************************************************
340 * get_modref
341 *
342 * Looks for the referenced HMODULE in the current process
343 * The loader_section must be locked while calling this function.
344 */
345 static WINE_MODREF *get_modref( HMODULE hmod )
346 {
347 PLIST_ENTRY mark, entry;
348 PLDR_MODULE mod;
349
350 if (cached_modref && cached_modref->ldr.BaseAddress == hmod) return cached_modref;
351
352 mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
353 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
354 {
355 mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
356 if (mod->BaseAddress == hmod)
357 return cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
358 if (mod->BaseAddress > (void*)hmod) break;
359 }
360 return NULL;
361 }
362
363
364 /**********************************************************************
365 * find_basename_module
366 *
367 * Find a module from its base name.
368 * The loader_section must be locked while calling this function
369 */
370 static WINE_MODREF *find_basename_module( LPCWSTR name )
371 {
372 PLIST_ENTRY mark, entry;
373
374 if (cached_modref && !strcmpiW( name, cached_modref->ldr.BaseDllName.Buffer ))
375 return cached_modref;
376
377 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
378 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
379 {
380 LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
381 if (!strcmpiW( name, mod->BaseDllName.Buffer ))
382 {
383 cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
384 return cached_modref;
385 }
386 }
387 return NULL;
388 }
389
390
391 /**********************************************************************
392 * find_fullname_module
393 *
394 * Find a module from its full path name.
395 * The loader_section must be locked while calling this function
396 */
397 static WINE_MODREF *find_fullname_module( LPCWSTR name )
398 {
399 PLIST_ENTRY mark, entry;
400
401 if (cached_modref && !strcmpiW( name, cached_modref->ldr.FullDllName.Buffer ))
402 return cached_modref;
403
404 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
405 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
406 {
407 LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
408 if (!strcmpiW( name, mod->FullDllName.Buffer ))
409 {
410 cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
411 return cached_modref;
412 }
413 }
414 return NULL;
415 }
416
417
418 /*************************************************************************
419 * find_forwarded_export
420 *
421 * Find the final function pointer for a forwarded function.
422 * The loader_section must be locked while calling this function.
423 */
424 static FARPROC find_forwarded_export( HMODULE module, const char *forward, LPCWSTR load_path )
425 {
426 const IMAGE_EXPORT_DIRECTORY *exports;
427 DWORD exp_size;
428 WINE_MODREF *wm;
429 WCHAR mod_name[32];
430 const char *end = strrchr(forward, '.');
431 FARPROC proc = NULL;
432
433 if (!end) return NULL;
434 if ((end - forward) * sizeof(WCHAR) >= sizeof(mod_name)) return NULL;
435 ascii_to_unicode( mod_name, forward, end - forward );
436 mod_name[end - forward] = 0;
437 if (!strchrW( mod_name, '.' ))
438 {
439 if ((end - forward) * sizeof(WCHAR) >= sizeof(mod_name) - sizeof(dllW)) return NULL;
440 memcpy( mod_name + (end - forward), dllW, sizeof(dllW) );
441 }
442
443 if (!(wm = find_basename_module( mod_name )))
444 {
445 TRACE( "delay loading %s for '%s'\n", debugstr_w(mod_name), forward );
446 if (load_dll( load_path, mod_name, 0, &wm ) == STATUS_SUCCESS &&
447 !(wm->ldr.Flags & LDR_DONT_RESOLVE_REFS))
448 {
449 if (process_attach( wm, NULL ) != STATUS_SUCCESS)
450 {
451 LdrUnloadDll( wm->ldr.BaseAddress );
452 wm = NULL;
453 }
454 }
455
456 if (!wm)
457 {
458 ERR( "module not found for forward '%s' used by %s\n",
459 forward, debugstr_w(get_modref(module)->ldr.FullDllName.Buffer) );
460 return NULL;
461 }
462 }
463 if ((exports = RtlImageDirectoryEntryToData( wm->ldr.BaseAddress, TRUE,
464 IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size )))
465 {
466 const char *name = end + 1;
467 if (*name == '#') /* ordinal */
468 proc = find_ordinal_export( wm->ldr.BaseAddress, exports, exp_size, atoi(name+1), load_path );
469 else
470 proc = find_named_export( wm->ldr.BaseAddress, exports, exp_size, name, -1, load_path );
471 }
472
473 if (!proc)
474 {
475 ERR("function not found for forward '%s' used by %s."
476 " If you are using builtin %s, try using the native one instead.\n",
477 forward, debugstr_w(get_modref(module)->ldr.FullDllName.Buffer),
478 debugstr_w(get_modref(module)->ldr.BaseDllName.Buffer) );
479 }
480 return proc;
481 }
482
483
484 /*************************************************************************
485 * find_ordinal_export
486 *
487 * Find an exported function by ordinal.
488 * The exports base must have been subtracted from the ordinal already.
489 * The loader_section must be locked while calling this function.
490 */
491 static FARPROC find_ordinal_export( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports,
492 DWORD exp_size, DWORD ordinal, LPCWSTR load_path )
493 {
494 FARPROC proc;
495 const DWORD *functions = get_rva( module, exports->AddressOfFunctions );
496
497 if (ordinal >= exports->NumberOfFunctions)
498 {
499 TRACE(" ordinal %d out of range!\n", ordinal + exports->Base );
500 return NULL;
501 }
502 if (!functions[ordinal]) return NULL;
503
504 proc = get_rva( module, functions[ordinal] );
505
506 /* if the address falls into the export dir, it's a forward */
507 if (((const char *)proc >= (const char *)exports) &&
508 ((const char *)proc < (const char *)exports + exp_size))
509 return find_forwarded_export( module, (const char *)proc, load_path );
510
511 if (TRACE_ON(snoop))
512 {
513 const WCHAR *user = current_modref ? current_modref->ldr.BaseDllName.Buffer : NULL;
514 proc = SNOOP_GetProcAddress( module, exports, exp_size, proc, ordinal, user );
515 }
516 if (TRACE_ON(relay))
517 {
518 const WCHAR *user = current_modref ? current_modref->ldr.BaseDllName.Buffer : NULL;
519 proc = RELAY_GetProcAddress( module, exports, exp_size, proc, ordinal, user );
520 }
521 return proc;
522 }
523
524
525 /*************************************************************************
526 * find_named_export
527 *
528 * Find an exported function by name.
529 * The loader_section must be locked while calling this function.
530 */
531 static FARPROC find_named_export( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports,
532 DWORD exp_size, const char *name, int hint, LPCWSTR load_path )
533 {
534 const WORD *ordinals = get_rva( module, exports->AddressOfNameOrdinals );
535 const DWORD *names = get_rva( module, exports->AddressOfNames );
536 int min = 0, max = exports->NumberOfNames - 1;
537
538 /* first check the hint */
539 if (hint >= 0 && hint <= max)
540 {
541 char *ename = get_rva( module, names[hint] );
542 if (!strcmp( ename, name ))
543 return find_ordinal_export( module, exports, exp_size, ordinals[hint], load_path );
544 }
545
546 /* then do a binary search */
547 while (min <= max)
548 {
549 int res, pos = (min + max) / 2;
550 char *ename = get_rva( module, names[pos] );
551 if (!(res = strcmp( ename, name )))
552 return find_ordinal_export( module, exports, exp_size, ordinals[pos], load_path );
553 if (res > 0) max = pos - 1;
554 else min = pos + 1;
555 }
556 return NULL;
557
558 }
559
560
561 /*************************************************************************
562 * import_dll
563 *
564 * Import the dll specified by the given import descriptor.
565 * The loader_section must be locked while calling this function.
566 */
567 static BOOL import_dll( HMODULE module, const IMAGE_IMPORT_DESCRIPTOR *descr, LPCWSTR load_path, WINE_MODREF **pwm )
568 {
569 NTSTATUS status;
570 WINE_MODREF *wmImp;
571 HMODULE imp_mod;
572 const IMAGE_EXPORT_DIRECTORY *exports;
573 DWORD exp_size;
574 const IMAGE_THUNK_DATA *import_list;
575 IMAGE_THUNK_DATA *thunk_list;
576 WCHAR buffer[32];
577 const char *name = get_rva( module, descr->Name );
578 DWORD len = strlen(name);
579 PVOID protect_base;
580 SIZE_T protect_size = 0;
581 DWORD protect_old;
582
583 thunk_list = get_rva( module, (DWORD)descr->FirstThunk );
584 if (descr->u.OriginalFirstThunk)
585 import_list = get_rva( module, (DWORD)descr->u.OriginalFirstThunk );
586 else
587 import_list = thunk_list;
588
589 if (!import_list->u1.Ordinal)
590 {
591 WARN( "Skipping unused import %s\n", name );
592 *pwm = NULL;
593 return TRUE;
594 }
595
596 while (len && name[len-1] == ' ') len--; /* remove trailing spaces */
597
598 if (len * sizeof(WCHAR) < sizeof(buffer))
599 {
600 ascii_to_unicode( buffer, name, len );
601 buffer[len] = 0;
602 status = load_dll( load_path, buffer, 0, &wmImp );
603 }
604 else /* need to allocate a larger buffer */
605 {
606 WCHAR *ptr = RtlAllocateHeap( GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR) );
607 if (!ptr) return FALSE;
608 ascii_to_unicode( ptr, name, len );
609 ptr[len] = 0;
610 status = load_dll( load_path, ptr, 0, &wmImp );
611 RtlFreeHeap( GetProcessHeap(), 0, ptr );
612 }
613
614 if (status)
615 {
616 if (status == STATUS_DLL_NOT_FOUND)
617 ERR("Library %s (which is needed by %s) not found\n",
618 name, debugstr_w(current_modref->ldr.FullDllName.Buffer));
619 else
620 ERR("Loading library %s (which is needed by %s) failed (error %x).\n",
621 name, debugstr_w(current_modref->ldr.FullDllName.Buffer), status);
622 return FALSE;
623 }
624
625 /* unprotect the import address table since it can be located in
626 * readonly section */
627 while (import_list[protect_size].u1.Ordinal) protect_size++;
628 protect_base = thunk_list;
629 protect_size *= sizeof(*thunk_list);
630 NtProtectVirtualMemory( NtCurrentProcess(), &protect_base,
631 &protect_size, PAGE_READWRITE, &protect_old );
632
633 imp_mod = wmImp->ldr.BaseAddress;
634 exports = RtlImageDirectoryEntryToData( imp_mod, TRUE, IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size );
635
636 if (!exports)
637 {
638 /* set all imported function to deadbeef */
639 while (import_list->u1.Ordinal)
640 {
641 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal))
642 {
643 int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
644 WARN("No implementation for %s.%d", name, ordinal );
645 thunk_list->u1.Function = allocate_stub( name, IntToPtr(ordinal) );
646 }
647 else
648 {
649 IMAGE_IMPORT_BY_NAME *pe_name = get_rva( module, (DWORD)import_list->u1.AddressOfData );
650 WARN("No implementation for %s.%s", name, pe_name->Name );
651 thunk_list->u1.Function = allocate_stub( name, (const char*)pe_name->Name );
652 }
653 WARN(" imported from %s, allocating stub %p\n",
654 debugstr_w(current_modref->ldr.FullDllName.Buffer),
655 (void *)thunk_list->u1.Function );
656 import_list++;
657 thunk_list++;
658 }
659 goto done;
660 }
661
662 while (import_list->u1.Ordinal)
663 {
664 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal))
665 {
666 int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
667
668 thunk_list->u1.Function = (ULONG_PTR)find_ordinal_export( imp_mod, exports, exp_size,
669 ordinal - exports->Base, load_path );
670 if (!thunk_list->u1.Function)
671 {
672 thunk_list->u1.Function = allocate_stub( name, IntToPtr(ordinal) );
673 WARN("No implementation for %s.%d imported from %s, setting to %p\n",
674 name, ordinal, debugstr_w(current_modref->ldr.FullDllName.Buffer),
675 (void *)thunk_list->u1.Function );
676 }
677 TRACE_(imports)("--- Ordinal %s.%d = %p\n", name, ordinal, (void *)thunk_list->u1.Function );
678 }
679 else /* import by name */
680 {
681 IMAGE_IMPORT_BY_NAME *pe_name;
682 pe_name = get_rva( module, (DWORD)import_list->u1.AddressOfData );
683 thunk_list->u1.Function = (ULONG_PTR)find_named_export( imp_mod, exports, exp_size,
684 (const char*)pe_name->Name,
685 pe_name->Hint, load_path );
686 if (!thunk_list->u1.Function)
687 {
688 thunk_list->u1.Function = allocate_stub( name, (const char*)pe_name->Name );
689 WARN("No implementation for %s.%s imported from %s, setting to %p\n",
690 name, pe_name->Name, debugstr_w(current_modref->ldr.FullDllName.Buffer),
691 (void *)thunk_list->u1.Function );
692 }
693 TRACE_(imports)("--- %s %s.%d = %p\n",
694 pe_name->Name, name, pe_name->Hint, (void *)thunk_list->u1.Function);
695 }
696 import_list++;
697 thunk_list++;
698 }
699
700 done:
701 /* restore old protection of the import address table */
702 NtProtectVirtualMemory( NtCurrentProcess(), &protect_base, &protect_size, protect_old, &protect_old );
703 *pwm = wmImp;
704 return TRUE;
705 }
706
707
708 /***********************************************************************
709 * create_module_activation_context
710 */
711 static NTSTATUS create_module_activation_context( LDR_MODULE *module )
712 {
713 NTSTATUS status;
714 LDR_RESOURCE_INFO info;
715 const IMAGE_RESOURCE_DATA_ENTRY *entry;
716
717 info.Type = RT_MANIFEST;
718 info.Name = ISOLATIONAWARE_MANIFEST_RESOURCE_ID;
719 info.Language = 0;
720 if (!(status = LdrFindResource_U( module->BaseAddress, &info, 3, &entry )))
721 {
722 ACTCTXW ctx;
723 ctx.cbSize = sizeof(ctx);
724 ctx.lpSource = NULL;
725 ctx.dwFlags = ACTCTX_FLAG_RESOURCE_NAME_VALID | ACTCTX_FLAG_HMODULE_VALID;
726 ctx.hModule = module->BaseAddress;
727 ctx.lpResourceName = (LPCWSTR)ISOLATIONAWARE_MANIFEST_RESOURCE_ID;
728 status = RtlCreateActivationContext( &module->ActivationContext, &ctx );
729 }
730 return status;
731 }
732
733
734 /*************************************************************************
735 * is_dll_native_subsystem
736 *
737 * Check if dll is a proper native driver.
738 * Some dlls (corpol.dll from IE6 for instance) are incorrectly marked as native
739 * while being perfectly normal DLLs. This heuristic should catch such breakages.
740 */
741 static BOOL is_dll_native_subsystem( HMODULE module, const IMAGE_NT_HEADERS *nt, LPCWSTR filename )
742 {
743 static const WCHAR ntdllW[] = {'n','t','d','l','l','.','d','l','l',0};
744 static const WCHAR kernel32W[] = {'k','e','r','n','e','l','3','2','.','d','l','l',0};
745 const IMAGE_IMPORT_DESCRIPTOR *imports;
746 DWORD i, size;
747 WCHAR buffer[16];
748
749 if (nt->OptionalHeader.Subsystem != IMAGE_SUBSYSTEM_NATIVE) return FALSE;
750 if (nt->OptionalHeader.SectionAlignment < page_size) return TRUE;
751
752 if ((imports = RtlImageDirectoryEntryToData( module, TRUE,
753 IMAGE_DIRECTORY_ENTRY_IMPORT, &size )))
754 {
755 for (i = 0; imports[i].Name; i++)
756 {
757 const char *name = get_rva( module, imports[i].Name );
758 DWORD len = strlen(name);
759 if (len * sizeof(WCHAR) >= sizeof(buffer)) continue;
760 ascii_to_unicode( buffer, name, len + 1 );
761 if (!strcmpiW( buffer, ntdllW ) || !strcmpiW( buffer, kernel32W ))
762 {
763 TRACE( "%s imports %s, assuming not native\n", debugstr_w(filename), debugstr_w(buffer) );
764 return FALSE;
765 }
766 }
767 }
768 return TRUE;
769 }
770
771 /*************************************************************************
772 * alloc_tls_slot
773 *
774 * Allocate a TLS slot for a newly-loaded module.
775 * The loader_section must be locked while calling this function.
776 */
777 static SHORT alloc_tls_slot( LDR_MODULE *mod )
778 {
779 const IMAGE_TLS_DIRECTORY *dir;
780 ULONG i, size;
781 void *new_ptr;
782 LIST_ENTRY *entry;
783
784 if (!(dir = RtlImageDirectoryEntryToData( mod->BaseAddress, TRUE, IMAGE_DIRECTORY_ENTRY_TLS, &size )))
785 return -1;
786
787 size = dir->EndAddressOfRawData - dir->StartAddressOfRawData;
788 if (!size && !dir->SizeOfZeroFill && !dir->AddressOfCallBacks) return -1;
789
790 for (i = 0; i < tls_module_count; i++)
791 {
792 if (!tls_dirs[i].StartAddressOfRawData && !tls_dirs[i].EndAddressOfRawData &&
793 !tls_dirs[i].SizeOfZeroFill && !tls_dirs[i].AddressOfCallBacks)
794 break;
795 }
796
797 TRACE( "module %p data %p-%p zerofill %u index %p callback %p flags %x -> slot %u\n", mod->BaseAddress,
798 (void *)dir->StartAddressOfRawData, (void *)dir->EndAddressOfRawData, dir->SizeOfZeroFill,
799 (void *)dir->AddressOfIndex, (void *)dir->AddressOfCallBacks, dir->Characteristics, i );
800
801 if (i == tls_module_count)
802 {
803 UINT new_count = max( 32, tls_module_count * 2 );
804
805 if (!tls_dirs)
806 new_ptr = RtlAllocateHeap( GetProcessHeap(), HEAP_ZERO_MEMORY, new_count * sizeof(*tls_dirs) );
807 else
808 new_ptr = RtlReAllocateHeap( GetProcessHeap(), HEAP_ZERO_MEMORY, tls_dirs,
809 new_count * sizeof(*tls_dirs) );
810 if (!new_ptr) return -1;
811
812 /* resize the pointer block in all running threads */
813 for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
814 {
815 TEB *teb = CONTAINING_RECORD( entry, TEB, TlsLinks );
816 void **old = teb->ThreadLocalStoragePointer;
817 void **new = RtlAllocateHeap( GetProcessHeap(), HEAP_ZERO_MEMORY, new_count * sizeof(*new));
818
819 if (!new) return -1;
820 if (old) memcpy( new, old, tls_module_count * sizeof(*new) );
821 teb->ThreadLocalStoragePointer = new;
822 TRACE( "thread %04lx tls block %p -> %p\n", (ULONG_PTR)teb->ClientId.UniqueThread, old, new );
823 /* FIXME: can't free old block here, should be freed at thread exit */
824 }
825
826 tls_dirs = new_ptr;
827 tls_module_count = new_count;
828 }
829
830 /* allocate the data block in all running threads */
831 for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
832 {
833 TEB *teb = CONTAINING_RECORD( entry, TEB, TlsLinks );
834
835 if (!(new_ptr = RtlAllocateHeap( GetProcessHeap(), 0, size + dir->SizeOfZeroFill ))) return -1;
836 memcpy( new_ptr, (void *)dir->StartAddressOfRawData, size );
837 memset( (char *)new_ptr + size, 0, dir->SizeOfZeroFill );
838
839 TRACE( "thread %04lx slot %u: %u/%u bytes at %p\n",
840 (ULONG_PTR)teb->ClientId.UniqueThread, i, size, dir->SizeOfZeroFill, new_ptr );
841
842 RtlFreeHeap( GetProcessHeap(), 0,
843 interlocked_xchg_ptr( (void **)teb->ThreadLocalStoragePointer + i, new_ptr ));
844 }
845
846 *(DWORD *)dir->AddressOfIndex = i;
847 tls_dirs[i] = *dir;
848 return i;
849 }
850
851
852 /*************************************************************************
853 * free_tls_slot
854 *
855 * Free the module TLS slot on unload.
856 * The loader_section must be locked while calling this function.
857 */
858 static void free_tls_slot( LDR_MODULE *mod )
859 {
860 ULONG i = (USHORT)mod->TlsIndex;
861
862 if (mod->TlsIndex == -1) return;
863 assert( i < tls_module_count );
864 memset( &tls_dirs[i], 0, sizeof(tls_dirs[i]) );
865 }
866
867
868 /****************************************************************
869 * fixup_imports
870 *
871 * Fixup all imports of a given module.
872 * The loader_section must be locked while calling this function.
873 */
874 static NTSTATUS fixup_imports( WINE_MODREF *wm, LPCWSTR load_path )
875 {
876 int i, nb_imports;
877 const IMAGE_IMPORT_DESCRIPTOR *imports;
878 WINE_MODREF *prev;
879 DWORD size;
880 NTSTATUS status;
881 ULONG_PTR cookie;
882
883 if (!(wm->ldr.Flags & LDR_DONT_RESOLVE_REFS)) return STATUS_SUCCESS; /* already done */
884 wm->ldr.Flags &= ~LDR_DONT_RESOLVE_REFS;
885
886 wm->ldr.TlsIndex = alloc_tls_slot( &wm->ldr );
887
888 if (!(imports = RtlImageDirectoryEntryToData( wm->ldr.BaseAddress, TRUE,
889 IMAGE_DIRECTORY_ENTRY_IMPORT, &size )))
890 return STATUS_SUCCESS;
891
892 nb_imports = 0;
893 while (imports[nb_imports].Name && imports[nb_imports].FirstThunk) nb_imports++;
894
895 if (!nb_imports) return STATUS_SUCCESS; /* no imports */
896
897 if (!create_module_activation_context( &wm->ldr ))
898 RtlActivateActivationContext( 0, wm->ldr.ActivationContext, &cookie );
899
900 /* Allocate module dependency list */
901 wm->nDeps = nb_imports;
902 wm->deps = RtlAllocateHeap( GetProcessHeap(), 0, nb_imports*sizeof(WINE_MODREF *) );
903
904 /* load the imported modules. They are automatically
905 * added to the modref list of the process.
906 */
907 prev = current_modref;
908 current_modref = wm;
909 status = STATUS_SUCCESS;
910 for (i = 0; i < nb_imports; i++)
911 {
912 if (!import_dll( wm->ldr.BaseAddress, &imports[i], load_path, &wm->deps[i] ))
913 {
914 wm->deps[i] = NULL;
915 status = STATUS_DLL_NOT_FOUND;
916 }
917 }
918 current_modref = prev;
919 if (wm->ldr.ActivationContext) RtlDeactivateActivationContext( 0, cookie );
920 return status;
921 }
922
923
924 /*************************************************************************
925 * alloc_module
926 *
927 * Allocate a WINE_MODREF structure and add it to the process list
928 * The loader_section must be locked while calling this function.
929 */
930 static WINE_MODREF *alloc_module( HMODULE hModule, LPCWSTR filename )
931 {
932 WINE_MODREF *wm;
933 const WCHAR *p;
934 const IMAGE_NT_HEADERS *nt = RtlImageNtHeader(hModule);
935 PLIST_ENTRY entry, mark;
936
937 if (!(wm = RtlAllocateHeap( GetProcessHeap(), 0, sizeof(*wm) ))) return NULL;
938
939 wm->nDeps = 0;
940 wm->deps = NULL;
941
942 wm->ldr.BaseAddress = hModule;
943 wm->ldr.EntryPoint = NULL;
944 wm->ldr.SizeOfImage = nt->OptionalHeader.SizeOfImage;
945 wm->ldr.Flags = LDR_DONT_RESOLVE_REFS;
946 wm->ldr.TlsIndex = -1;
947 wm->ldr.LoadCount = 1;
948 wm->ldr.SectionHandle = NULL;
949 wm->ldr.CheckSum = 0;
950 wm->ldr.TimeDateStamp = 0;
951 wm->ldr.ActivationContext = 0;
952
953 RtlCreateUnicodeString( &wm->ldr.FullDllName, filename );
954 if ((p = strrchrW( wm->ldr.FullDllName.Buffer, '\\' ))) p++;
955 else p = wm->ldr.FullDllName.Buffer;
956 RtlInitUnicodeString( &wm->ldr.BaseDllName, p );
957
958 if (!(nt->FileHeader.Characteristics & IMAGE_FILE_DLL) || !is_dll_native_subsystem( hModule, nt, p ))
959 {
960 if (nt->FileHeader.Characteristics & IMAGE_FILE_DLL)
961 wm->ldr.Flags |= LDR_IMAGE_IS_DLL;
962 if (nt->OptionalHeader.AddressOfEntryPoint)
963 wm->ldr.EntryPoint = (char *)hModule + nt->OptionalHeader.AddressOfEntryPoint;
964 }
965
966 InsertTailList(&NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList,
967 &wm->ldr.InLoadOrderModuleList);
968
969 /* insert module in MemoryList, sorted in increasing base addresses */
970 mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
971 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
972 {
973 if (CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList)->BaseAddress > wm->ldr.BaseAddress)
974 break;
975 }
976 entry->Blink->Flink = &wm->ldr.InMemoryOrderModuleList;
977 wm->ldr.InMemoryOrderModuleList.Blink = entry->Blink;
978 wm->ldr.InMemoryOrderModuleList.Flink = entry;
979 entry->Blink = &wm->ldr.InMemoryOrderModuleList;
980
981 /* wait until init is called for inserting into this list */
982 wm->ldr.InInitializationOrderModuleList.Flink = NULL;
983 wm->ldr.InInitializationOrderModuleList.Blink = NULL;
984
985 if (!(nt->OptionalHeader.DllCharacteristics & IMAGE_DLLCHARACTERISTICS_NX_COMPAT))
986 {
987 ULONG flags = MEM_EXECUTE_OPTION_ENABLE;
988 WARN( "disabling no-exec because of %s\n", debugstr_w(wm->ldr.BaseDllName.Buffer) );
989 NtSetInformationProcess( GetCurrentProcess(), ProcessExecuteFlags, &flags, sizeof(flags) );
990 }
991 return wm;
992 }
993
994
995 /*************************************************************************
996 * alloc_thread_tls
997 *
998 * Allocate the per-thread structure for module TLS storage.
999 */
1000 static NTSTATUS alloc_thread_tls(void)
1001 {
1002 void **pointers;
1003 UINT i, size;
1004
1005 if (!tls_module_count) return STATUS_SUCCESS;
1006
1007 if (!(pointers = RtlAllocateHeap( GetProcessHeap(), HEAP_ZERO_MEMORY,
1008 tls_module_count * sizeof(*pointers) )))
1009 return STATUS_NO_MEMORY;
1010
1011 for (i = 0; i < tls_module_count; i++)
1012 {
1013 const IMAGE_TLS_DIRECTORY *dir = &tls_dirs[i];
1014
1015 if (!dir) continue;
1016 size = dir->EndAddressOfRawData - dir->StartAddressOfRawData;
1017 if (!size && !dir->SizeOfZeroFill) continue;
1018
1019 if (!(pointers[i] = RtlAllocateHeap( GetProcessHeap(), 0, size + dir->SizeOfZeroFill )))
1020 {
1021 while (i) RtlFreeHeap( GetProcessHeap(), 0, pointers[--i] );
1022 RtlFreeHeap( GetProcessHeap(), 0, pointers );
1023 return STATUS_NO_MEMORY;
1024 }
1025 memcpy( pointers[i], (void *)dir->StartAddressOfRawData, size );
1026 memset( (char *)pointers[i] + size, 0, dir->SizeOfZeroFill );
1027
1028 TRACE( "thread %04x slot %u: %u/%u bytes at %p\n",
1029 GetCurrentThreadId(), i, size, dir->SizeOfZeroFill, pointers[i] );
1030 }
1031 NtCurrentTeb()->ThreadLocalStoragePointer = pointers;
1032 return STATUS_SUCCESS;
1033 }
1034
1035
1036 /*************************************************************************
1037 * call_tls_callbacks
1038 */
1039 static void call_tls_callbacks( HMODULE module, UINT reason )
1040 {
1041 const IMAGE_TLS_DIRECTORY *dir;
1042 const PIMAGE_TLS_CALLBACK *callback;
1043 ULONG dirsize;
1044
1045 dir = RtlImageDirectoryEntryToData( module, TRUE, IMAGE_DIRECTORY_ENTRY_TLS, &dirsize );
1046 if (!dir || !dir->AddressOfCallBacks) return;
1047
1048 for (callback = (const PIMAGE_TLS_CALLBACK *)dir->AddressOfCallBacks; *callback; callback++)
1049 {
1050 if (TRACE_ON(relay))
1051 {
1052 if (TRACE_ON(pid))
1053 DPRINTF( "%04x:", GetCurrentProcessId() );
1054 DPRINTF("%04x:Call TLS callback (proc=%p,module=%p,reason=%s,reserved=0)\n",
1055 GetCurrentThreadId(), *callback, module, reason_names[reason] );
1056 }
1057 __TRY
1058 {
1059 call_dll_entry_point( (DLLENTRYPROC)*callback, module, reason, NULL );
1060 }
1061 __EXCEPT_ALL
1062 {
1063 if (TRACE_ON(relay))
1064 {
1065 if (TRACE_ON(pid))
1066 DPRINTF( "%04x:", GetCurrentProcessId() );
1067 DPRINTF("%04x:exception in TLS callback (proc=%p,module=%p,reason=%s,reserved=0)\n",
1068 GetCurrentThreadId(), callback, module, reason_names[reason] );
1069 }
1070 return;
1071 }
1072 __ENDTRY
1073 if (TRACE_ON(relay))
1074 {
1075 if (TRACE_ON(pid))
1076 DPRINTF( "%04x:", GetCurrentProcessId() );
1077 DPRINTF("%04x:Ret TLS callback (proc=%p,module=%p,reason=%s,reserved=0)\n",
1078 GetCurrentThreadId(), *callback, module, reason_names[reason] );
1079 }
1080 }
1081 }
1082
1083
1084 /*************************************************************************
1085 * MODULE_InitDLL
1086 */
1087 static NTSTATUS MODULE_InitDLL( WINE_MODREF *wm, UINT reason, LPVOID lpReserved )
1088 {
1089 WCHAR mod_name[32];
1090 NTSTATUS status = STATUS_SUCCESS;
1091 DLLENTRYPROC entry = wm->ldr.EntryPoint;
1092 void *module = wm->ldr.BaseAddress;
1093 BOOL retv = FALSE;
1094
1095 /* Skip calls for modules loaded with special load flags */
1096
1097 if (wm->ldr.Flags & LDR_DONT_RESOLVE_REFS) return STATUS_SUCCESS;
1098 if (wm->ldr.TlsIndex != -1) call_tls_callbacks( wm->ldr.BaseAddress, reason );
1099 if (!entry || !(wm->ldr.Flags & LDR_IMAGE_IS_DLL)) return STATUS_SUCCESS;
1100
1101 if (TRACE_ON(relay))
1102 {
1103 size_t len = min( wm->ldr.BaseDllName.Length, sizeof(mod_name)-sizeof(WCHAR) );
1104 memcpy( mod_name, wm->ldr.BaseDllName.Buffer, len );
1105 mod_name[len / sizeof(WCHAR)] = 0;
1106 if (TRACE_ON(pid))
1107 DPRINTF( "%04x:", GetCurrentProcessId() );
1108 DPRINTF("%04x:Call PE DLL (proc=%p,module=%p %s,reason=%s,res=%p)\n",
1109 GetCurrentThreadId(), entry, module, debugstr_w(mod_name),
1110 reason_names[reason], lpReserved );
1111 }
1112 else TRACE("(%p %s,%s,%p) - CALL\n", module, debugstr_w(wm->ldr.BaseDllName.Buffer),
1113 reason_names[reason], lpReserved );
1114
1115 __TRY
1116 {
1117 retv = call_dll_entry_point( entry, module, reason, lpReserved );
1118 if (!retv)
1119 status = STATUS_DLL_INIT_FAILED;
1120 }
1121 __EXCEPT_ALL
1122 {
1123 if (TRACE_ON(relay))
1124 {
1125 if (TRACE_ON(pid))
1126 DPRINTF( "%04x:", GetCurrentProcessId() );
1127 DPRINTF("%04x:exception in PE entry point (proc=%p,module=%p,reason=%s,res=%p)\n",
1128 GetCurrentThreadId(), entry, module, reason_names[reason], lpReserved );
1129 }
1130 status = GetExceptionCode();
1131 }
1132 __ENDTRY
1133
1134 /* The state of the module list may have changed due to the call
1135 to the dll. We cannot assume that this module has not been
1136 deleted. */
1137 if (TRACE_ON(relay))
1138 {
1139 if (TRACE_ON(pid))
1140 DPRINTF( "%04x:", GetCurrentProcessId() );
1141 DPRINTF("%04x:Ret PE DLL (proc=%p,module=%p %s,reason=%s,res=%p) retval=%x\n",
1142 GetCurrentThreadId(), entry, module, debugstr_w(mod_name),
1143 reason_names[reason], lpReserved, retv );
1144 }
1145 else TRACE("(%p,%s,%p) - RETURN %d\n", module, reason_names[reason], lpReserved, retv );
1146
1147 return status;
1148 }
1149
1150
1151 /*************************************************************************
1152 * process_attach
1153 *
1154 * Send the process attach notification to all DLLs the given module
1155 * depends on (recursively). This is somewhat complicated due to the fact that
1156 *
1157 * - we have to respect the module dependencies, i.e. modules implicitly
1158 * referenced by another module have to be initialized before the module
1159 * itself can be initialized
1160 *
1161 * - the initialization routine of a DLL can itself call LoadLibrary,
1162 * thereby introducing a whole new set of dependencies (even involving
1163 * the 'old' modules) at any time during the whole process
1164 *
1165 * (Note that this routine can be recursively entered not only directly
1166 * from itself, but also via LoadLibrary from one of the called initialization
1167 * routines.)
1168 *
1169 * Furthermore, we need to rearrange the main WINE_MODREF list to allow
1170 * the process *detach* notifications to be sent in the correct order.
1171 * This must not only take into account module dependencies, but also
1172 * 'hidden' dependencies created by modules calling LoadLibrary in their
1173 * attach notification routine.
1174 *
1175 * The strategy is rather simple: we move a WINE_MODREF to the head of the
1176 * list after the attach notification has returned. This implies that the
1177 * detach notifications are called in the reverse of the sequence the attach
1178 * notifications *returned*.
1179 *
1180 * The loader_section must be locked while calling this function.
1181 */
1182 static NTSTATUS process_attach( WINE_MODREF *wm, LPVOID lpReserved )
1183 {
1184 NTSTATUS status = STATUS_SUCCESS;
1185 ULONG_PTR cookie;
1186 int i;
1187
1188 if (process_detaching) return status;
1189
1190 /* prevent infinite recursion in case of cyclical dependencies */
1191 if ( ( wm->ldr.Flags & LDR_LOAD_IN_PROGRESS )
1192 || ( wm->ldr.Flags & LDR_PROCESS_ATTACHED ) )
1193 return status;
1194
1195 TRACE("(%s,%p) - START\n", debugstr_w(wm->ldr.BaseDllName.Buffer), lpReserved );
1196
1197 /* Tag current MODREF to prevent recursive loop */
1198 wm->ldr.Flags |= LDR_LOAD_IN_PROGRESS;
1199 if (lpReserved) wm->ldr.LoadCount = -1; /* pin it if imported by the main exe */
1200 if (wm->ldr.ActivationContext) RtlActivateActivationContext( 0, wm->ldr.ActivationContext, &cookie );
1201
1202 /* Recursively attach all DLLs this one depends on */
1203 for ( i = 0; i < wm->nDeps; i++ )
1204 {
1205 if (!wm->deps[i]) continue;
1206 if ((status = process_attach( wm->deps[i], lpReserved )) != STATUS_SUCCESS) break;
1207 }
1208
1209 if (!wm->ldr.InInitializationOrderModuleList.Flink)
1210 InsertTailList(&NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList,
1211 &wm->ldr.InInitializationOrderModuleList);
1212
1213 /* Call DLL entry point */
1214 if (status == STATUS_SUCCESS)
1215 {
1216 WINE_MODREF *prev = current_modref;
1217 current_modref = wm;
1218 status = MODULE_InitDLL( wm, DLL_PROCESS_ATTACH, lpReserved );
1219 if (status == STATUS_SUCCESS)
1220 wm->ldr.Flags |= LDR_PROCESS_ATTACHED;
1221 else
1222 {
1223 MODULE_InitDLL( wm, DLL_PROCESS_DETACH, lpReserved );
1224 /* point to the name so LdrInitializeThunk can print it */
1225 last_failed_modref = wm;
1226 WARN("Initialization of %s failed\n", debugstr_w(wm->ldr.BaseDllName.Buffer));
1227 }
1228 current_modref = prev;
1229 }
1230
1231 if (wm->ldr.ActivationContext) RtlDeactivateActivationContext( 0, cookie );
1232 /* Remove recursion flag */
1233 wm->ldr.Flags &= ~LDR_LOAD_IN_PROGRESS;
1234
1235 TRACE("(%s,%p) - END\n", debugstr_w(wm->ldr.BaseDllName.Buffer), lpReserved );
1236 return status;
1237 }
1238
1239
1240 /**********************************************************************
1241 * attach_implicitly_loaded_dlls
1242 *
1243 * Attach to the (builtin) dlls that have been implicitly loaded because
1244 * of a dependency at the Unix level, but not imported at the Win32 level.
1245 */
1246 static void attach_implicitly_loaded_dlls( LPVOID reserved )
1247 {
1248 for (;;)
1249 {
1250 PLIST_ENTRY mark, entry;
1251
1252 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
1253 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1254 {
1255 LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
1256
1257 if (mod->Flags & (LDR_LOAD_IN_PROGRESS | LDR_PROCESS_ATTACHED)) continue;
1258 TRACE( "found implicitly loaded %s, attaching to it\n",
1259 debugstr_w(mod->BaseDllName.Buffer));
1260 process_attach( CONTAINING_RECORD(mod, WINE_MODREF, ldr), reserved );
1261 break; /* restart the search from the start */
1262 }
1263 if (entry == mark) break; /* nothing found */
1264 }
1265 }
1266
1267
1268 /*************************************************************************
1269 * process_detach
1270 *
1271 * Send DLL process detach notifications. See the comment about calling
1272 * sequence at process_attach.
1273 */
1274 static void process_detach(void)
1275 {
1276 PLIST_ENTRY mark, entry;
1277 PLDR_MODULE mod;
1278
1279 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
1280 do
1281 {
1282 for (entry = mark->Blink; entry != mark; entry = entry->Blink)
1283 {
1284 mod = CONTAINING_RECORD(entry, LDR_MODULE,
1285 InInitializationOrderModuleList);
1286 /* Check whether to detach this DLL */
1287 if ( !(mod->Flags & LDR_PROCESS_ATTACHED) )
1288 continue;
1289 if ( mod->LoadCount && !process_detaching )
1290 continue;
1291
1292 /* Call detach notification */
1293 mod->Flags &= ~LDR_PROCESS_ATTACHED;
1294 MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr),
1295 DLL_PROCESS_DETACH, ULongToPtr(process_detaching) );
1296
1297 /* Restart at head of WINE_MODREF list, as entries might have
1298 been added and/or removed while performing the call ... */
1299 break;
1300 }
1301 } while (entry != mark);
1302 }
1303
1304 /*************************************************************************
1305 * MODULE_DllThreadAttach
1306 *
1307 * Send DLL thread attach notifications. These are sent in the
1308 * reverse sequence of process detach notification.
1309 *
1310 */
1311 NTSTATUS MODULE_DllThreadAttach( LPVOID lpReserved )
1312 {
1313 PLIST_ENTRY mark, entry;
1314 PLDR_MODULE mod;
1315 NTSTATUS status;
1316
1317 /* don't do any attach calls if process is exiting */
1318 if (process_detaching) return STATUS_SUCCESS;
1319
1320 RtlEnterCriticalSection( &loader_section );
1321
1322 RtlAcquirePebLock();
1323 InsertHeadList( &tls_links, &NtCurrentTeb()->TlsLinks );
1324 RtlReleasePebLock();
1325
1326 if ((status = alloc_thread_tls()) != STATUS_SUCCESS) goto done;
1327
1328 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
1329 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1330 {
1331 mod = CONTAINING_RECORD(entry, LDR_MODULE,
1332 InInitializationOrderModuleList);
1333 if ( !(mod->Flags & LDR_PROCESS_ATTACHED) )
1334 continue;
1335 if ( mod->Flags & LDR_NO_DLL_CALLS )
1336 continue;
1337
1338 MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr),
1339 DLL_THREAD_ATTACH, lpReserved );
1340 }
1341
1342 done:
1343 RtlLeaveCriticalSection( &loader_section );
1344 return status;
1345 }
1346
1347 /******************************************************************
1348 * LdrDisableThreadCalloutsForDll (NTDLL.@)
1349 *
1350 */
1351 NTSTATUS WINAPI LdrDisableThreadCalloutsForDll(HMODULE hModule)
1352 {
1353 WINE_MODREF *wm;
1354 NTSTATUS ret = STATUS_SUCCESS;
1355
1356 RtlEnterCriticalSection( &loader_section );
1357
1358 wm = get_modref( hModule );
1359 if (!wm || wm->ldr.TlsIndex != -1)
1360 ret = STATUS_DLL_NOT_FOUND;
1361 else
1362 wm->ldr.Flags |= LDR_NO_DLL_CALLS;
1363
1364 RtlLeaveCriticalSection( &loader_section );
1365
1366 return ret;
1367 }
1368
1369 /******************************************************************
1370 * LdrFindEntryForAddress (NTDLL.@)
1371 *
1372 * The loader_section must be locked while calling this function
1373 */
1374 NTSTATUS WINAPI LdrFindEntryForAddress(const void* addr, PLDR_MODULE* pmod)
1375 {
1376 PLIST_ENTRY mark, entry;
1377 PLDR_MODULE mod;
1378
1379 mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
1380 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1381 {
1382 mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
1383 if (mod->BaseAddress <= addr &&
1384 (const char *)addr < (char*)mod->BaseAddress + mod->SizeOfImage)
1385 {
1386 *pmod = mod;
1387 return STATUS_SUCCESS;
1388 }
1389 if (mod->BaseAddress > addr) break;
1390 }
1391 return STATUS_NO_MORE_ENTRIES;
1392 }
1393
1394 /******************************************************************
1395 * LdrLockLoaderLock (NTDLL.@)
1396 *
1397 * Note: some flags are not implemented.
1398 * Flag 0x01 is used to raise exceptions on errors.
1399 */
1400 NTSTATUS WINAPI LdrLockLoaderLock( ULONG flags, ULONG *result, ULONG_PTR *magic )
1401 {
1402 if (flags & ~0x2) FIXME( "flags %x not supported\n", flags );
1403
1404 if (result) *result = 0;
1405 if (magic) *magic = 0;
1406 if (flags & ~0x3) return STATUS_INVALID_PARAMETER_1;
1407 if (!result && (flags & 0x2)) return STATUS_INVALID_PARAMETER_2;
1408 if (!magic) return STATUS_INVALID_PARAMETER_3;
1409
1410 if (flags & 0x2)
1411 {
1412 if (!RtlTryEnterCriticalSection( &loader_section ))
1413 {
1414 *result = 2;
1415 return STATUS_SUCCESS;
1416 }
1417 *result = 1;
1418 }
1419 else
1420 {
1421 RtlEnterCriticalSection( &loader_section );
1422 if (result) *result = 1;
1423 }
1424 *magic = GetCurrentThreadId();
1425 return STATUS_SUCCESS;
1426 }
1427
1428
1429 /******************************************************************
1430 * LdrUnlockLoaderUnlock (NTDLL.@)
1431 */
1432 NTSTATUS WINAPI LdrUnlockLoaderLock( ULONG flags, ULONG_PTR magic )
1433 {
1434 if (magic)
1435 {
1436 if (magic != GetCurrentThreadId()) return STATUS_INVALID_PARAMETER_2;
1437 RtlLeaveCriticalSection( &loader_section );
1438 }
1439 return STATUS_SUCCESS;
1440 }
1441
1442
1443 /******************************************************************
1444 * LdrGetProcedureAddress (NTDLL.@)
1445 */
1446 NTSTATUS WINAPI LdrGetProcedureAddress(HMODULE module, const ANSI_STRING *name,
1447 ULONG ord, PVOID *address)
1448 {
1449 IMAGE_EXPORT_DIRECTORY *exports;
1450 DWORD exp_size;
1451 NTSTATUS ret = STATUS_PROCEDURE_NOT_FOUND;
1452
1453 RtlEnterCriticalSection( &loader_section );
1454
1455 /* check if the module itself is invalid to return the proper error */
1456 if (!get_modref( module )) ret = STATUS_DLL_NOT_FOUND;
1457 else if ((exports = RtlImageDirectoryEntryToData( module, TRUE,
1458 IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size )))
1459 {
1460 LPCWSTR load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
1461 void *proc = name ? find_named_export( module, exports, exp_size, name->Buffer, -1, load_path )
1462 : find_ordinal_export( module, exports, exp_size, ord - exports->Base, load_path );
1463 if (proc)
1464 {
1465 *address = proc;
1466 ret = STATUS_SUCCESS;
1467 }
1468 }
1469
1470 RtlLeaveCriticalSection( &loader_section );
1471 return ret;
1472 }
1473
1474
1475 /***********************************************************************
1476 * is_fake_dll
1477 *
1478 * Check if a loaded native dll is a Wine fake dll.
1479 */
1480 static BOOL is_fake_dll( HANDLE handle )
1481 {
1482 static const char fakedll_signature[] = "Wine placeholder DLL";
1483 char buffer[sizeof(IMAGE_DOS_HEADER) + sizeof(fakedll_signature)];
1484 const IMAGE_DOS_HEADER *dos = (const IMAGE_DOS_HEADER *)buffer;
1485 IO_STATUS_BLOCK io;
1486 LARGE_INTEGER offset;
1487
1488 offset.QuadPart = 0;
1489 if (NtReadFile( handle, 0, NULL, 0, &io, buffer, sizeof(buffer), &offset, NULL )) return FALSE;
1490 if (io.Information < sizeof(buffer)) return FALSE;
1491 if (dos->e_magic != IMAGE_DOS_SIGNATURE) return FALSE;
1492 if (dos->e_lfanew >= sizeof(*dos) + sizeof(fakedll_signature) &&
1493 !memcmp( dos + 1, fakedll_signature, sizeof(fakedll_signature) )) return TRUE;
1494 return FALSE;
1495 }
1496
1497
1498 /***********************************************************************
1499 * get_builtin_fullname
1500 *
1501 * Build the full pathname for a builtin dll.
1502 */
1503 static WCHAR *get_builtin_fullname( const WCHAR *path, const char *filename )
1504 {
1505 static const WCHAR soW[] = {'.','s','o',0};
1506 WCHAR *p, *fullname;
1507 size_t i, len = strlen(filename);
1508
1509 /* check if path can correspond to the dll we have */
1510 if (path && (p = strrchrW( path, '\\' )))
1511 {
1512 p++;
1513 for (i = 0; i < len; i++)
1514 if (tolowerW(p[i]) != tolowerW( (WCHAR)filename[i]) ) break;
1515 if (i == len && (!p[len] || !strcmpiW( p + len, soW )))
1516 {
1517 /* the filename matches, use path as the full path */
1518 len += p - path;
1519 if ((fullname = RtlAllocateHeap( GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR) )))
1520 {
1521 memcpy( fullname, path, len * sizeof(WCHAR) );
1522 fullname[len] = 0;
1523 }
1524 return fullname;
1525 }
1526 }
1527
1528 if ((fullname = RtlAllocateHeap( GetProcessHeap(), 0,
1529 system_dir.MaximumLength + (len + 1) * sizeof(WCHAR) )))
1530 {
1531 memcpy( fullname, system_dir.Buffer, system_dir.Length );
1532 p = fullname + system_dir.Length / sizeof(WCHAR);
1533 if (p > fullname && p[-1] != '\\') *p++ = '\\';
1534 ascii_to_unicode( p, filename, len + 1 );
1535 }
1536 return fullname;
1537 }
1538
1539
1540 /*************************************************************************
1541 * is_16bit_builtin
1542 */
1543 static BOOL is_16bit_builtin( HMODULE module )
1544 {
1545 const IMAGE_EXPORT_DIRECTORY *exports;
1546 DWORD exp_size;
1547
1548 if (!(exports = RtlImageDirectoryEntryToData( module, TRUE,
1549 IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size )))
1550 return FALSE;
1551
1552 return find_named_export( module, exports, exp_size, "__wine_spec_dos_header", -1, NULL ) != NULL;
1553 }
1554
1555
1556 /***********************************************************************
1557 * load_builtin_callback
1558 *
1559 * Load a library in memory; callback function for wine_dll_register
1560 */
1561 static void load_builtin_callback( void *module, const char *filename )
1562 {
1563 static const WCHAR emptyW[1];
1564 IMAGE_NT_HEADERS *nt;
1565 WINE_MODREF *wm;
1566 WCHAR *fullname;
1567 const WCHAR *load_path;
1568
1569 if (!module)
1570 {
1571 ERR("could not map image for %s\n", filename ? filename : "main exe" );
1572 return;
1573 }
1574 if (!(nt = RtlImageNtHeader( module )))
1575 {
1576 ERR( "bad module for %s\n", filename ? filename : "main exe" );
1577 builtin_load_info->status = STATUS_INVALID_IMAGE_FORMAT;
1578 return;
1579 }
1580
1581 virtual_create_builtin_view( module );
1582
1583 /* create the MODREF */
1584
1585 if (!(fullname = get_builtin_fullname( builtin_load_info->filename, filename )))
1586 {
1587 ERR( "can't load %s\n", filename );
1588 builtin_load_info->status = STATUS_NO_MEMORY;
1589 return;
1590 }
1591
1592 wm = alloc_module( module, fullname );
1593 RtlFreeHeap( GetProcessHeap(), 0, fullname );
1594 if (!wm)
1595 {
1596 ERR( "can't load %s\n", filename );
1597 builtin_load_info->status = STATUS_NO_MEMORY;
1598 return;
1599 }
1600 wm->ldr.Flags |= LDR_WINE_INTERNAL;
1601
1602 if ((nt->FileHeader.Characteristics & IMAGE_FILE_DLL) ||
1603 nt->OptionalHeader.Subsystem == IMAGE_SUBSYSTEM_NATIVE ||
1604 is_16bit_builtin( module ))
1605 {
1606 /* fixup imports */
1607
1608 load_path = builtin_load_info->load_path;
1609 if (!load_path) load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
1610 if (!load_path) load_path = emptyW;
1611 if (fixup_imports( wm, load_path ) != STATUS_SUCCESS)
1612 {
1613 /* the module has only be inserted in the load & memory order lists */
1614 RemoveEntryList(&wm->ldr.InLoadOrderModuleList);
1615 RemoveEntryList(&wm->ldr.InMemoryOrderModuleList);
1616 /* FIXME: free the modref */
1617 builtin_load_info->status = STATUS_DLL_NOT_FOUND;
1618 return;
1619 }
1620 }
1621
1622 builtin_load_info->wm = wm;
1623 TRACE( "loaded %s %p %p\n", filename, wm, module );
1624
1625 /* send the DLL load event */
1626
1627 SERVER_START_REQ( load_dll )
1628 {
1629 req->mapping = 0;
1630 req->base = wine_server_client_ptr( module );
1631 req->size = nt->OptionalHeader.SizeOfImage;
1632 req->dbg_offset = nt->FileHeader.PointerToSymbolTable;
1633 req->dbg_size = nt->FileHeader.NumberOfSymbols;
1634 req->name = wine_server_client_ptr( &wm->ldr.FullDllName.Buffer );
1635 wine_server_add_data( req, wm->ldr.FullDllName.Buffer, wm->ldr.FullDllName.Length );
1636 wine_server_call( req );
1637 }
1638 SERVER_END_REQ;
1639
1640 /* setup relay debugging entry points */
1641 if (TRACE_ON(relay)) RELAY_SetupDLL( module );
1642 }
1643
1644
1645 /***********************************************************************
1646 * set_security_cookie
1647 *
1648 * Create a random security cookie for buffer overflow protection. Make
1649 * sure it does not accidentally match the default cookie value.
1650 */
1651 static void set_security_cookie( void *module, SIZE_T len )
1652 {
1653 static ULONG seed;
1654 IMAGE_LOAD_CONFIG_DIRECTORY *loadcfg;
1655 ULONG loadcfg_size;
1656 ULONG_PTR *cookie;
1657
1658 loadcfg = RtlImageDirectoryEntryToData( module, TRUE, IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG, &loadcfg_size );
1659 if (!loadcfg) return;
1660 if (loadcfg_size < offsetof(IMAGE_LOAD_CONFIG_DIRECTORY, SecurityCookie) + sizeof(loadcfg->SecurityCookie)) return;
1661 if (!loadcfg->SecurityCookie) return;
1662 if (loadcfg->SecurityCookie < (ULONG_PTR)module ||
1663 loadcfg->SecurityCookie > (ULONG_PTR)module + len - sizeof(ULONG_PTR))
1664 {
1665 WARN( "security cookie %p outside of image %p-%p\n",
1666 (void *)loadcfg->SecurityCookie, module, (char *)module + len );
1667 return;
1668 }
1669
1670 cookie = (ULONG_PTR *)loadcfg->SecurityCookie;
1671 TRACE( "initializing security cookie %p\n", cookie );
1672
1673 if (!seed) seed = NtGetTickCount() ^ GetCurrentProcessId();
1674 for (;;)
1675 {
1676 if (*cookie == DEFAULT_SECURITY_COOKIE_16)
1677 *cookie = RtlRandom( &seed ) >> 16; /* leave the high word clear */
1678 else if (*cookie == DEFAULT_SECURITY_COOKIE_32)
1679 *cookie = RtlRandom( &seed );
1680 #ifdef DEFAULT_SECURITY_COOKIE_64
1681 else if (*cookie == DEFAULT_SECURITY_COOKIE_64)
1682 {
1683 *cookie = RtlRandom( &seed );
1684 /* fill up, but keep the highest word clear */
1685 *cookie ^= (ULONG_PTR)RtlRandom( &seed ) << 16;
1686 }
1687 #endif
1688 else
1689 break;
1690 }
1691 }
1692
1693 static NTSTATUS perform_relocations( void *module, SIZE_T len )
1694 {
1695 IMAGE_NT_HEADERS *nt;
1696 char *base;
1697 IMAGE_BASE_RELOCATION *rel, *end;
1698 const IMAGE_DATA_DIRECTORY *relocs;
1699 const IMAGE_SECTION_HEADER *sec;
1700 INT_PTR delta;
1701 ULONG protect_old[96], i;
1702
1703 nt = RtlImageNtHeader( module );
1704 base = (char *)nt->OptionalHeader.ImageBase;
1705
1706 assert( module != base );
1707
1708 /* no relocations are performed on non page-aligned binaries */
1709 if (nt->OptionalHeader.SectionAlignment < page_size)
1710 return STATUS_SUCCESS;
1711
1712 if (!(nt->FileHeader.Characteristics & IMAGE_FILE_DLL) && NtCurrentTeb()->Peb->ImageBaseAddress)
1713 return STATUS_SUCCESS;
1714
1715 relocs = &nt->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC];
1716
1717 if (nt->FileHeader.Characteristics & IMAGE_FILE_RELOCS_STRIPPED)
1718 {
1719 WARN( "Need to relocate module from %p to %p, but there are no relocation records\n",
1720 base, module );
1721 return STATUS_CONFLICTING_ADDRESSES;
1722 }
1723
1724 if (!relocs->Size) return STATUS_SUCCESS;
1725 if (!relocs->VirtualAddress) return STATUS_CONFLICTING_ADDRESSES;
1726
1727 if (nt->FileHeader.NumberOfSections > sizeof(protect_old)/sizeof(protect_old[0]))
1728 return STATUS_INVALID_IMAGE_FORMAT;
1729
1730 sec = (const IMAGE_SECTION_HEADER *)((const char *)&nt->OptionalHeader +
1731 nt->FileHeader.SizeOfOptionalHeader);
1732 for (i = 0; i < nt->FileHeader.NumberOfSections; i++)
1733 {
1734 void *addr = get_rva( module, sec[i].VirtualAddress );
1735 SIZE_T size = sec[i].SizeOfRawData;
1736 NtProtectVirtualMemory( NtCurrentProcess(), &addr,
1737 &size, PAGE_READWRITE, &protect_old[i] );
1738 }
1739
1740 TRACE( "relocating from %p-%p to %p-%p\n",
1741 base, base + len, module, (char *)module + len );
1742
1743 rel = get_rva( module, relocs->VirtualAddress );
1744 end = get_rva( module, relocs->VirtualAddress + relocs->Size );
1745 delta = (char *)module - base;
1746
1747 while (rel < end - 1 && rel->SizeOfBlock)
1748 {
1749 if (rel->VirtualAddress >= len)
1750 {
1751 WARN( "invalid address %p in relocation %p\n", get_rva( module, rel->VirtualAddress ), rel );
1752 return STATUS_ACCESS_VIOLATION;
1753 }
1754 rel = LdrProcessRelocationBlock( get_rva( module, rel->VirtualAddress ),
1755 (rel->SizeOfBlock - sizeof(*rel)) / sizeof(USHORT),
1756 (USHORT *)(rel + 1), delta );
1757 if (!rel) return STATUS_INVALID_IMAGE_FORMAT;
1758 }
1759
1760 for (i = 0; i < nt->FileHeader.NumberOfSections; i++)
1761 {
1762 void *addr = get_rva( module, sec[i].VirtualAddress );
1763 SIZE_T size = sec[i].SizeOfRawData;
1764 NtProtectVirtualMemory( NtCurrentProcess(), &addr,
1765 &size, protect_old[i], &protect_old[i] );
1766 }
1767
1768 return STATUS_SUCCESS;
1769 }
1770
1771 /******************************************************************************
1772 * load_native_dll (internal)
1773 */
1774 static NTSTATUS load_native_dll( LPCWSTR load_path, LPCWSTR name, HANDLE file,
1775 DWORD flags, WINE_MODREF** pwm )
1776 {
1777 void *module;
1778 HANDLE mapping;
1779 LARGE_INTEGER size;
1780 IMAGE_NT_HEADERS *nt;
1781 SIZE_T len = 0;
1782 WINE_MODREF *wm;
1783 NTSTATUS status;
1784
1785 TRACE("Trying native dll %s\n", debugstr_w(name));
1786
1787 size.QuadPart = 0;
1788 status = NtCreateSection( &mapping, STANDARD_RIGHTS_REQUIRED | SECTION_QUERY | SECTION_MAP_READ,
1789 NULL, &size, PAGE_EXECUTE_READ, SEC_IMAGE, file );
1790 if (status != STATUS_SUCCESS) return status;
1791
1792 module = NULL;
1793 status = NtMapViewOfSection( mapping, NtCurrentProcess(),
1794 &module, 0, 0, &size, &len, ViewShare, 0, PAGE_EXECUTE_READ );
1795
1796 /* perform base relocation, if necessary */
1797
1798 if (status == STATUS_IMAGE_NOT_AT_BASE)
1799 status = perform_relocations( module, len );
1800
1801 if (status != STATUS_SUCCESS)
1802 {
1803 if (module) NtUnmapViewOfSection( NtCurrentProcess(), module );
1804 goto done;
1805 }
1806
1807 /* create the MODREF */
1808
1809 if (!(wm = alloc_module( module, name )))
1810 {
1811 status = STATUS_NO_MEMORY;
1812 goto done;
1813 }
1814
1815 set_security_cookie( module, len );
1816
1817 /* fixup imports */
1818
1819 nt = RtlImageNtHeader( module );
1820
1821 if (!(flags & DONT_RESOLVE_DLL_REFERENCES) &&
1822 ((nt->FileHeader.Characteristics & IMAGE_FILE_DLL) ||
1823 nt->OptionalHeader.Subsystem == IMAGE_SUBSYSTEM_NATIVE))
1824 {
1825 if ((status = fixup_imports( wm, load_path )) != STATUS_SUCCESS)
1826 {
1827 /* the module has only be inserted in the load & memory order lists */
1828 RemoveEntryList(&wm->ldr.InLoadOrderModuleList);
1829 RemoveEntryList(&wm->ldr.InMemoryOrderModuleList);
1830
1831 /* FIXME: there are several more dangling references
1832 * left. Including dlls loaded by this dll before the
1833 * failed one. Unrolling is rather difficult with the
1834 * current structure and we can leave them lying
1835 * around with no problems, so we don't care.
1836 * As these might reference our wm, we don't free it.
1837 */
1838 goto done;
1839 }
1840 }
1841
1842 /* send DLL load event */
1843
1844 SERVER_START_REQ( load_dll )
1845 {
1846 req->mapping = wine_server_obj_handle( mapping );
1847 req->base = wine_server_client_ptr( module );
1848 req->size = nt->OptionalHeader.SizeOfImage;
1849 req->dbg_offset = nt->FileHeader.PointerToSymbolTable;
1850 req->dbg_size = nt->FileHeader.NumberOfSymbols;
1851 req->name = wine_server_client_ptr( &wm->ldr.FullDllName.Buffer );
1852 wine_server_add_data( req, wm->ldr.FullDllName.Buffer, wm->ldr.FullDllName.Length );
1853 wine_server_call( req );
1854 }
1855 SERVER_END_REQ;
1856
1857 if ((wm->ldr.Flags & LDR_IMAGE_IS_DLL) && TRACE_ON(snoop)) SNOOP_SetupDLL( module );
1858
1859 TRACE_(loaddll)( "Loaded %s at %p: native\n", debugstr_w(wm->ldr.FullDllName.Buffer), module );
1860
1861 wm->ldr.LoadCount = 1;
1862 *pwm = wm;
1863 status = STATUS_SUCCESS;
1864 done:
1865 NtClose( mapping );
1866 return status;
1867 }
1868
1869
1870 /***********************************************************************
1871 * load_builtin_dll
1872 */
1873 static NTSTATUS load_builtin_dll( LPCWSTR load_path, LPCWSTR path, HANDLE file,
1874 DWORD flags, WINE_MODREF** pwm )
1875 {
1876 char error[256], dllname[MAX_PATH];
1877 const WCHAR *name, *p;
1878 DWORD len, i;
1879 void *handle;
1880 struct builtin_load_info info, *prev_info;
1881
1882 /* Fix the name in case we have a full path and extension */
1883 name = path;
1884 if ((p = strrchrW( name, '\\' ))) name = p + 1;
1885 if ((p = strrchrW( name, '/' ))) name = p + 1;
1886
1887 /* load_library will modify info.status. Note also that load_library can be
1888 * called several times, if the .so file we're loading has dependencies.
1889 * info.status will gather all the errors we may get while loading all these
1890 * libraries
1891 */
1892 info.load_path = load_path;
1893 info.filename = NULL;
1894 info.status = STATUS_SUCCESS;
1895 info.wm = NULL;
1896
1897 if (file) /* we have a real file, try to load it */
1898 {
1899 UNICODE_STRING nt_name;
1900 ANSI_STRING unix_name;
1901
1902 TRACE("Trying built-in %s\n", debugstr_w(path));
1903
1904 if (!RtlDosPathNameToNtPathName_U( path, &nt_name, NULL, NULL ))
1905 return STATUS_DLL_NOT_FOUND;
1906
1907 if (wine_nt_to_unix_file_name( &nt_name, &unix_name, FILE_OPEN, FALSE ))
1908 {
1909 RtlFreeUnicodeString( &nt_name );
1910 return STATUS_DLL_NOT_FOUND;
1911 }
1912 prev_info = builtin_load_info;
1913 info.filename = nt_name.Buffer + 4; /* skip \??\ */
1914 builtin_load_info = &info;
1915 handle = wine_dlopen( unix_name.Buffer, RTLD_NOW, error, sizeof(error) );
1916 builtin_load_info = prev_info;
1917 RtlFreeUnicodeString( &nt_name );
1918 RtlFreeHeap( GetProcessHeap(), 0, unix_name.Buffer );
1919 if (!handle)
1920 {
1921 WARN( "failed to load .so lib for builtin %s: %s\n", debugstr_w(path), error );
1922 return STATUS_INVALID_IMAGE_FORMAT;
1923 }
1924 }
1925 else
1926 {
1927 int file_exists;
1928
1929 TRACE("Trying built-in %s\n", debugstr_w(name));
1930
1931 /* we don't want to depend on the current codepage here */
1932 len = strlenW( name ) + 1;
1933 if (len >= sizeof(dllname)) return STATUS_NAME_TOO_LONG;
1934 for (i = 0; i < len; i++)
1935 {
1936 if (name[i] > 127) return STATUS_DLL_NOT_FOUND;
1937 dllname[i] = (char)name[i];
1938 if (dllname[i] >= 'A' && dllname[i] <= 'Z') dllname[i] += 'a' - 'A';
1939 }
1940
1941 prev_info = builtin_load_info;
1942 builtin_load_info = &info;
1943 handle = wine_dll_load( dllname, error, sizeof(error), &file_exists );
1944 builtin_load_info = prev_info;
1945 if (!handle)
1946 {
1947 if (!file_exists)
1948 {
1949 /* The file does not exist -> WARN() */
1950 WARN("cannot open .so lib for builtin %s: %s\n", debugstr_w(name), error);
1951 return STATUS_DLL_NOT_FOUND;
1952 }
1953 /* ERR() for all other errors (missing functions, ...) */
1954 ERR("failed to load .so lib for builtin %s: %s\n", debugstr_w(name), error );
1955 return STATUS_PROCEDURE_NOT_FOUND;
1956 }
1957 }
1958
1959 if (info.status != STATUS_SUCCESS)
1960 {
1961 wine_dll_unload( handle );
1962 return info.status;
1963 }
1964
1965 if (!info.wm)
1966 {
1967 PLIST_ENTRY mark, entry;
1968
1969 /* The constructor wasn't called, this means the .so is already
1970 * loaded under a different name. Try to find the wm for it. */
1971
1972 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
1973 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1974 {
1975 LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
1976 if (mod->Flags & LDR_WINE_INTERNAL && mod->SectionHandle == handle)
1977 {
1978 info.wm = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
1979 TRACE( "Found %s at %p for builtin %s\n",
1980 debugstr_w(info.wm->ldr.FullDllName.Buffer), info.wm->ldr.BaseAddress, debugstr_w(path) );
1981 break;
1982 }
1983 }
1984 wine_dll_unload( handle ); /* release the libdl refcount */
1985 if (!info.wm) return STATUS_INVALID_IMAGE_FORMAT;
1986 if (info.wm->ldr.LoadCount != -1) info.wm->ldr.LoadCount++;
1987 }
1988 else
1989 {
1990 TRACE_(loaddll)( "Loaded %s at %p: builtin\n", debugstr_w(info.wm->ldr.FullDllName.Buffer), info.wm->ldr.BaseAddress );
1991 info.wm->ldr.LoadCount = 1;
1992 info.wm->ldr.SectionHandle = handle;
1993 }
1994
1995 *pwm = info.wm;
1996 return STATUS_SUCCESS;
1997 }
1998
1999
2000 /***********************************************************************
2001 * find_actctx_dll
2002 *
2003 * Find the full path (if any) of the dll from the activation context.
2004 */
2005 static NTSTATUS find_actctx_dll( LPCWSTR libname, LPWSTR *fullname )
2006 {
2007 static const WCHAR winsxsW[] = {'\\','w','i','n','s','x','s','\\'};
2008 static const WCHAR dotManifestW[] = {'.','m','a','n','i','f','e','s','t',0};
2009
2010 ACTIVATION_CONTEXT_ASSEMBLY_DETAILED_INFORMATION *info;
2011 ACTCTX_SECTION_KEYED_DATA data;
2012 UNICODE_STRING nameW;
2013 NTSTATUS status;
2014 SIZE_T needed, size = 1024;
2015 WCHAR *p;
2016
2017 RtlInitUnicodeString( &nameW, libname );
2018 data.cbSize = sizeof(data);
2019 status = RtlFindActivationContextSectionString( FIND_ACTCTX_SECTION_KEY_RETURN_HACTCTX, NULL,
2020 ACTIVATION_CONTEXT_SECTION_DLL_REDIRECTION,
2021 &nameW, &data );
2022 if (status != STATUS_SUCCESS) return status;
2023
2024 for (;;)
2025 {
2026 if (!(info = RtlAllocateHeap( GetProcessHeap(), 0, size )))
2027 {
2028 status = STATUS_NO_MEMORY;
2029 goto done;
2030 }
2031 status = RtlQueryInformationActivationContext( 0, data.hActCtx, &data.ulAssemblyRosterIndex,
2032 AssemblyDetailedInformationInActivationContext,
2033 info, size, &needed );
2034 if (status == STATUS_SUCCESS) break;
2035 if (status != STATUS_BUFFER_TOO_SMALL) goto done;
2036 RtlFreeHeap( GetProcessHeap(), 0, info );
2037 size = needed;
2038 /* restart with larger buffer */
2039 }
2040
2041 if (!info->lpAssemblyManifestPath || !info->lpAssemblyDirectoryName)
2042 {
2043 status = STATUS_SXS_KEY_NOT_FOUND;
2044 goto done;
2045 }
2046
2047 if ((p = strrchrW( info->lpAssemblyManifestPath, '\\' )))
2048 {
2049 DWORD dirlen = info->ulAssemblyDirectoryNameLength / sizeof(WCHAR);
2050
2051 p++;
2052 if (strncmpiW( p, info->lpAssemblyDirectoryName, dirlen ) || strcmpiW( p + dirlen, dotManifestW ))
2053 {
2054 /* manifest name does not match directory name, so it's not a global
2055 * windows/winsxs manifest; use the manifest directory name instead */
2056 dirlen = p - info->lpAssemblyManifestPath;
2057 needed = (dirlen + 1) * sizeof(WCHAR) + nameW.Length;
2058 if (!(*fullname = p = RtlAllocateHeap( GetProcessHeap(), 0, needed )))
2059 {
2060 status = STATUS_NO_MEMORY;
2061 goto done;
2062 }
2063 memcpy( p, info->lpAssemblyManifestPath, dirlen * sizeof(WCHAR) );
2064 p += dirlen;
2065 strcpyW( p, libname );
2066 goto done;
2067 }
2068 }
2069
2070 needed = (strlenW(user_shared_data->NtSystemRoot) * sizeof(WCHAR) +
2071 sizeof(winsxsW) + info->ulAssemblyDirectoryNameLength + nameW.Length + 2*sizeof(WCHAR));
2072
2073 if (!(*fullname = p = RtlAllocateHeap( GetProcessHeap(), 0, needed )))
2074 {
2075 status = STATUS_NO_MEMORY;
2076 goto done;
2077 }
2078 strcpyW( p, user_shared_data->NtSystemRoot );
2079 p += strlenW(p);
2080 memcpy( p, winsxsW, sizeof(winsxsW) );
2081 p += sizeof(winsxsW) / sizeof(WCHAR);
2082 memcpy( p, info->lpAssemblyDirectoryName, info->ulAssemblyDirectoryNameLength );
2083 p += info->ulAssemblyDirectoryNameLength / sizeof(WCHAR);
2084 *p++ = '\\';
2085 strcpyW( p, libname );
2086 done:
2087 RtlFreeHeap( GetProcessHeap(), 0, info );
2088 RtlReleaseActivationContext( data.hActCtx );
2089 return status;
2090 }
2091
2092
2093 /***********************************************************************
2094 * find_dll_file
2095 *
2096 * Find the file (or already loaded module) for a given dll name.
2097 */
2098 static NTSTATUS find_dll_file( const WCHAR *load_path, const WCHAR *libname,
2099 WCHAR *filename, ULONG *size, WINE_MODREF **pwm, HANDLE *handle )
2100 {
2101 OBJECT_ATTRIBUTES attr;
2102 IO_STATUS_BLOCK io;
2103 UNICODE_STRING nt_name;
2104 WCHAR *file_part, *ext, *dllname;
2105 ULONG len;
2106
2107 /* first append .dll if needed */
2108
2109 dllname = NULL;
2110 if (!(ext = strrchrW( libname, '.')) || strchrW( ext, '/' ) || strchrW( ext, '\\'))
2111 {
2112 if (!(dllname = RtlAllocateHeap( GetProcessHeap(), 0,
2113 (strlenW(libname) * sizeof(WCHAR)) + sizeof(dllW) )))
2114 return STATUS_NO_MEMORY;
2115 strcpyW( dllname, libname );
2116 strcatW( dllname, dllW );
2117 libname = dllname;
2118 }
2119
2120 nt_name.Buffer = NULL;
2121
2122 if (!contains_path( libname ))
2123 {
2124 NTSTATUS status;
2125 WCHAR *fullname = NULL;
2126
2127 if ((*pwm = find_basename_module( libname )) != NULL) goto found;
2128
2129 status = find_actctx_dll( libname, &fullname );
2130 if (status == STATUS_SUCCESS)
2131 {
2132 TRACE ("found %s for %s\n", debugstr_w(fullname), debugstr_w(libname) );
2133 RtlFreeHeap( GetProcessHeap(), 0, dllname );
2134 libname = dllname = fullname;
2135 }
2136 else if (status != STATUS_SXS_KEY_NOT_FOUND)
2137 {
2138 RtlFreeHeap( GetProcessHeap(), 0, dllname );
2139 return status;
2140 }
2141 }
2142
2143 if (RtlDetermineDosPathNameType_U( libname ) == RELATIVE_PATH)
2144 {
2145 /* we need to search for it */
2146 len = RtlDosSearchPath_U( load_path, libname, NULL, *size, filename, &file_part );
2147 if (len)
2148 {
2149 if (len >= *size) goto overflow;
2150 if ((*pwm = find_fullname_module( filename )) || !handle) goto found;
2151
2152 if (!RtlDosPathNameToNtPathName_U( filename, &nt_name, NULL, NULL ))
2153 {
2154 RtlFreeHeap( GetProcessHeap(), 0, dllname );
2155 return STATUS_NO_MEMORY;
2156 }
2157 attr.Length = sizeof(attr);
2158 attr.RootDirectory = 0;
2159 attr.Attributes = OBJ_CASE_INSENSITIVE;
2160 attr.ObjectName = &nt_name;
2161 attr.SecurityDescriptor = NULL;
2162 attr.SecurityQualityOfService = NULL;
2163 if (NtOpenFile( handle, GENERIC_READ|SYNCHRONIZE, &attr, &io, FILE_SHARE_READ|FILE_SHARE_DELETE, FILE_SYNCHRONOUS_IO_NONALERT|FILE_NON_DIRECTORY_FILE )) *handle = 0;
2164 goto found;
2165 }
2166
2167 /* not found */
2168
2169 if (!contains_path( libname ))
2170 {
2171 /* if libname doesn't contain a path at all, we simply return the name as is,
2172 * to be loaded as builtin */
2173 len = strlenW(libname) * sizeof(WCHAR);
2174 if (len >= *size) goto overflow;
2175 strcpyW( filename, libname );
2176 goto found;
2177 }
2178 }
2179
2180 /* absolute path name, or relative path name but not found above */
2181
2182 if (!RtlDosPathNameToNtPathName_U( libname, &nt_name, &file_part, NULL ))
2183 {
2184 RtlFreeHeap( GetProcessHeap(), 0, dllname );
2185 return STATUS_NO_MEMORY;
2186 }
2187 len = nt_name.Length - 4*sizeof(WCHAR); /* for \??\ prefix */
2188 if (len >= *size) goto overflow;
2189 memcpy( filename, nt_name.Buffer + 4, len + sizeof(WCHAR) );
2190 if (!(*pwm = find_fullname_module( filename )) && handle)
2191 {
2192 attr.Length = sizeof(attr);
2193 attr.RootDirectory = 0;
2194 attr.Attributes = OBJ_CASE_INSENSITIVE;
2195 attr.ObjectName = &nt_name;
2196 attr.SecurityDescriptor = NULL;
2197 attr.SecurityQualityOfService = NULL;
2198 if (NtOpenFile( handle, GENERIC_READ|SYNCHRONIZE, &attr, &io, FILE_SHARE_READ|FILE_SHARE_DELETE, FILE_SYNCHRONOUS_IO_NONALERT|FILE_NON_DIRECTORY_FILE )) *handle = 0;
2199 }
2200 found:
2201 RtlFreeUnicodeString( &nt_name );
2202 RtlFreeHeap( GetProcessHeap(), 0, dllname );
2203 return STATUS_SUCCESS;
2204
2205 overflow:
2206 RtlFreeUnicodeString( &nt_name );
2207 RtlFreeHeap( GetProcessHeap(), 0, dllname );
2208 *size = len + sizeof(WCHAR);
2209 return STATUS_BUFFER_TOO_SMALL;
2210 }
2211
2212
2213 /***********************************************************************
2214 * load_dll (internal)
2215 *
2216 * Load a PE style module according to the load order.
2217 * The loader_section must be locked while calling this function.
2218 */
2219 static NTSTATUS load_dll( LPCWSTR load_path, LPCWSTR libname, DWORD flags, WINE_MODREF** pwm )
2220 {
2221 enum loadorder loadorder;
2222 WCHAR buffer[64];
2223 WCHAR *filename;
2224 ULONG size;
2225 WINE_MODREF *main_exe;
2226 HANDLE handle = 0;
2227 NTSTATUS nts;
2228
2229 TRACE( "looking for %s in %s\n", debugstr_w(libname), debugstr_w(load_path) );
2230
2231 *pwm = NULL;
2232 filename = buffer;
2233 size = sizeof(buffer);
2234 for (;;)
2235 {
2236 nts = find_dll_file( load_path, libname, filename, &size, pwm, &handle );
2237 if (nts == STATUS_SUCCESS) break;
2238 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
2239 if (nts != STATUS_BUFFER_TOO_SMALL) return nts;
2240 /* grow the buffer and retry */
2241 if (!(filename = RtlAllocateHeap( GetProcessHeap(), 0, size ))) return STATUS_NO_MEMORY;
2242 }
2243
2244 if (*pwm) /* found already loaded module */
2245 {
2246 if ((*pwm)->ldr.LoadCount != -1) (*pwm)->ldr.LoadCount++;
2247
2248 TRACE("Found %s for %s at %p, count=%d\n",
2249 debugstr_w((*pwm)->ldr.FullDllName.Buffer), debugstr_w(libname),
2250 (*pwm)->ldr.BaseAddress, (*pwm)->ldr.LoadCount);
2251 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
2252 return STATUS_SUCCESS;
2253 }
2254
2255 main_exe = get_modref( NtCurrentTeb()->Peb->ImageBaseAddress );
2256 loadorder = get_load_order( main_exe ? main_exe->ldr.BaseDllName.Buffer : NULL, filename );
2257
2258 if (handle && is_fake_dll( handle ))
2259 {
2260 TRACE( "%s is a fake Wine dll\n", debugstr_w(filename) );
2261 NtClose( handle );
2262 handle = 0;
2263 }
2264
2265 switch(loadorder)
2266 {
2267 case LO_INVALID:
2268 nts = STATUS_NO_MEMORY;
2269 break;
2270 case LO_DISABLED:
2271 nts = STATUS_DLL_NOT_FOUND;
2272 break;
2273 case LO_NATIVE:
2274 case LO_NATIVE_BUILTIN:
2275 if (!handle) nts = STATUS_DLL_NOT_FOUND;
2276 else
2277 {
2278 nts = load_native_dll( load_path, filename, handle, flags, pwm );
2279 if (nts == STATUS_INVALID_IMAGE_NOT_MZ)
2280 /* not in PE format, maybe it's a builtin */
2281 nts = load_builtin_dll( load_path, filename, handle, flags, pwm );
2282 }
2283 if (nts == STATUS_DLL_NOT_FOUND && loadorder == LO_NATIVE_BUILTIN)
2284 nts = load_builtin_dll( load_path, filename, 0, flags, pwm );
2285 break;
2286 case LO_BUILTIN:
2287 case LO_BUILTIN_NATIVE:
2288 case LO_DEFAULT: /* default is builtin,native */
2289 nts = load_builtin_dll( load_path, filename, handle, flags, pwm );
2290 if (!handle) break; /* nothing else we can try */
2291 /* file is not a builtin library, try without using the specified file */
2292 if (nts != STATUS_SUCCESS)
2293 nts = load_builtin_dll( load_path, filename, 0, flags, pwm );
2294 if (nts == STATUS_SUCCESS && loadorder == LO_DEFAULT &&
2295 (MODULE_InitDLL( *pwm, DLL_WINE_PREATTACH, NULL ) != STATUS_SUCCESS))
2296 {
2297 /* stub-only dll, try native */
2298 TRACE( "%s pre-attach returned FALSE, preferring native\n", debugstr_w(filename) );
2299 LdrUnloadDll( (*pwm)->ldr.BaseAddress );
2300 nts = STATUS_DLL_NOT_FOUND;
2301 }
2302 if (nts == STATUS_DLL_NOT_FOUND && loadorder != LO_BUILTIN)
2303 nts = load_native_dll( load_path, filename, handle, flags, pwm );
2304 break;
2305 }
2306
2307 if (nts == STATUS_SUCCESS)
2308 {
2309 /* Initialize DLL just loaded */
2310 TRACE("Loaded module %s (%s) at %p\n", debugstr_w(filename),
2311 ((*pwm)->ldr.Flags & LDR_WINE_INTERNAL) ? "builtin" : "native",
2312 (*pwm)->ldr.BaseAddress);
2313 if (handle) NtClose( handle );
2314 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
2315 return nts;
2316 }
2317
2318 WARN("Failed to load module %s; status=%x\n", debugstr_w(libname), nts);
2319 if (handle) NtClose( handle );
2320 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
2321 return nts;
2322 }
2323
2324 /******************************************************************
2325 * LdrLoadDll (NTDLL.@)
2326 */
2327 NTSTATUS WINAPI DECLSPEC_HOTPATCH LdrLoadDll(LPCWSTR path_name, DWORD flags,
2328 const UNICODE_STRING *libname, HMODULE* hModule)
2329 {
2330 WINE_MODREF *wm;
2331 NTSTATUS nts;
2332
2333 RtlEnterCriticalSection( &loader_section );
2334
2335 if (!path_name) path_name = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
2336 nts = load_dll( path_name, libname->Buffer, flags, &wm );
2337
2338 if (nts == STATUS_SUCCESS && !(wm->ldr.Flags & LDR_DONT_RESOLVE_REFS))
2339 {
2340 nts = process_attach( wm, NULL );
2341 if (nts != STATUS_SUCCESS)
2342 {
2343 LdrUnloadDll(wm->ldr.BaseAddress);
2344 wm = NULL;
2345 }
2346 }
2347 *hModule = (wm) ? wm->ldr.BaseAddress : NULL;
2348
2349 RtlLeaveCriticalSection( &loader_section );
2350 return nts;
2351 }
2352
2353
2354 /******************************************************************
2355 * LdrGetDllHandle (NTDLL.@)
2356 */
2357 NTSTATUS WINAPI LdrGetDllHandle( LPCWSTR load_path, ULONG flags, const UNICODE_STRING *name, HMODULE *base )
2358 {
2359 NTSTATUS status;
2360 WCHAR buffer[128];
2361 WCHAR *filename;
2362 ULONG size;
2363 WINE_MODREF *wm;
2364
2365 RtlEnterCriticalSection( &loader_section );
2366
2367 if (!load_path) load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
2368
2369 filename = buffer;
2370 size = sizeof(buffer);
2371 for (;;)
2372 {
2373 status = find_dll_file( load_path, name->Buffer, filename, &size, &wm, NULL );
2374 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
2375 if (status != STATUS_BUFFER_TOO_SMALL) break;
2376 /* grow the buffer and retry */
2377 if (!(filename = RtlAllocateHeap( GetProcessHeap(), 0, size )))
2378 {
2379 status = STATUS_NO_MEMORY;
2380 break;
2381 }
2382 }
2383
2384 if (status == STATUS_SUCCESS)
2385 {
2386 if (wm) *base = wm->ldr.BaseAddress;
2387 else status = STATUS_DLL_NOT_FOUND;
2388 }
2389
2390 RtlLeaveCriticalSection( &loader_section );
2391 TRACE( "%s -> %p (load path %s)\n", debugstr_us(name), status ? NULL : *base, debugstr_w(load_path) );
2392 return status;
2393 }
2394
2395
2396 /******************************************************************
2397 * LdrAddRefDll (NTDLL.@)
2398 */
2399 NTSTATUS WINAPI LdrAddRefDll( ULONG flags, HMODULE module )
2400 {
2401 NTSTATUS ret = STATUS_SUCCESS;
2402 WINE_MODREF *wm;
2403
2404 if (flags & ~LDR_ADDREF_DLL_PIN) FIXME( "%p flags %x not implemented\n", module, flags );
2405
2406 RtlEnterCriticalSection( &loader_section );
2407
2408 if ((wm = get_modref( module )))
2409 {
2410 if (flags & LDR_ADDREF_DLL_PIN)
2411 wm->ldr.LoadCount = -1;
2412 else
2413 if (wm->ldr.LoadCount != -1) wm->ldr.LoadCount++;
2414 TRACE( "(%s) ldr.LoadCount: %d\n", debugstr_w(wm->ldr.BaseDllName.Buffer), wm->ldr.LoadCount );
2415 }
2416 else ret = STATUS_INVALID_PARAMETER;
2417
2418 RtlLeaveCriticalSection( &loader_section );
2419 return ret;
2420 }
2421
2422
2423 /***********************************************************************
2424 * LdrProcessRelocationBlock (NTDLL.@)
2425 *
2426 * Apply relocations to a given page of a mapped PE image.
2427 */
2428 IMAGE_BASE_RELOCATION * WINAPI LdrProcessRelocationBlock( void *page, UINT count,
2429 USHORT *relocs, INT_PTR delta )
2430 {
2431 while (count--)
2432 {
2433 USHORT offset = *relocs & 0xfff;
2434 int type = *relocs >> 12;
2435 switch(type)
2436 {
2437 case IMAGE_REL_BASED_ABSOLUTE:
2438 break;
2439 case IMAGE_REL_BASED_HIGH:
2440 *(short *)((char *)page + offset) += HIWORD(delta);
2441 break;
2442 case IMAGE_REL_BASED_LOW:
2443 *(short *)((char *)page + offset) += LOWORD(delta);
2444 break;
2445 case IMAGE_REL_BASED_HIGHLOW:
2446 *(int *)((char *)page + offset) += delta;
2447 break;
2448 #ifdef __x86_64__
2449 case IMAGE_REL_BASED_DIR64:
2450 *(INT_PTR *)((char *)page + offset) += delta;
2451 break;
2452 #elif defined(__arm__)
2453 case IMAGE_REL_BASED_THUMB_MOV32:
2454 {
2455 DWORD inst = *(INT_PTR *)((char *)page + offset);
2456 DWORD imm16 = ((inst << 1) & 0x0800) + ((inst << 12) & 0xf000) +
2457 ((inst >> 20) & 0x0700) + ((inst >> 16) & 0x00ff);
2458 DWORD hi_delta;
2459
2460 if ((inst & 0x8000fbf0) != 0x0000f240)
2461 ERR("wrong Thumb2 instruction %08x, expected MOVW\n", inst);
2462
2463 imm16 += LOWORD(delta);
2464 hi_delta = HIWORD(delta) + HIWORD(imm16);
2465 *(INT_PTR *)((char *)page + offset) = (inst & 0x8f00fbf0) + ((imm16 >> 1) & 0x0400) +
2466 ((imm16 >> 12) & 0x000f) +
2467 ((imm16 << 20) & 0x70000000) +
2468 ((imm16 << 16) & 0xff0000);
2469
2470 if (hi_delta != 0)
2471 {
2472 inst = *(INT_PTR *)((char *)page + offset + 4);
2473 imm16 = ((inst << 1) & 0x0800) + ((inst << 12) & 0xf000) +
2474 ((inst >> 20) & 0x0700) + ((inst >> 16) & 0x00ff);
2475
2476 if ((inst & 0x8000fbf0) != 0x0000f2c0)
2477 ERR("wrong Thumb2 instruction %08x, expected MOVT\n", inst);
2478
2479 imm16 += hi_delta;
2480 if (imm16 > 0xffff)
2481 ERR("resulting immediate value won't fit: %08x\n", imm16);
2482 *(INT_PTR *)((char *)page + offset + 4) = (inst & 0x8f00fbf0) +
2483 ((imm16 >> 1) & 0x0400) +
2484 ((imm16 >> 12) & 0x000f) +
2485 ((imm16 << 20) & 0x70000000) +
2486 ((imm16 << 16) & 0xff0000);
2487 }
2488 }
2489 break;
2490 #endif
2491 default:
2492 FIXME("Unknown/unsupported fixup type %x.\n", type);
2493 return NULL;
2494 }
2495 relocs++;
2496 }
2497 return (IMAGE_BASE_RELOCATION *)relocs; /* return address of next block */
2498 }
2499
2500
2501 /******************************************************************
2502 * LdrQueryProcessModuleInformation
2503 *
2504 */
2505 NTSTATUS WINAPI LdrQueryProcessModuleInformation(PSYSTEM_MODULE_INFORMATION smi,
2506 ULONG buf_size, ULONG* req_size)
2507 {
2508 SYSTEM_MODULE* sm = &smi->Modules[0];
2509 ULONG size = sizeof(ULONG);
2510 NTSTATUS nts = STATUS_SUCCESS;
2511 ANSI_STRING str;
2512 char* ptr;
2513 PLIST_ENTRY mark, entry;
2514 PLDR_MODULE mod;
2515 WORD id = 0;
2516
2517 smi->ModulesCount = 0;
2518
2519 RtlEnterCriticalSection( &loader_section );
2520 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
2521 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
2522 {
2523 mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
2524 size += sizeof(*sm);
2525 if (size <= buf_size)
2526 {
2527 sm->Reserved1 = 0; /* FIXME */
2528 sm->Reserved2 = 0; /* FIXME */
2529 sm->ImageBaseAddress = mod->BaseAddress;
2530 sm->ImageSize = mod->SizeOfImage;
2531 sm->Flags = mod->Flags;
2532 sm->Id = id++;
2533 sm->Rank = 0; /* FIXME */
2534 sm->Unknown = 0; /* FIXME */
2535 str.Length = 0;
2536 str.MaximumLength = MAXIMUM_FILENAME_LENGTH;
2537 str.Buffer = (char*)sm->Name;
2538 RtlUnicodeStringToAnsiString(&str, &mod->FullDllName, FALSE);
2539 ptr = strrchr(str.Buffer, '\\');
2540 sm->NameOffset = (ptr != NULL) ? (ptr - str.Buffer + 1) : 0;
2541
2542 smi->ModulesCount++;
2543 sm++;
2544 }
2545 else nts = STATUS_INFO_LENGTH_MISMATCH;
2546 }
2547 RtlLeaveCriticalSection( &loader_section );
2548
2549 if (req_size) *req_size = size;
2550
2551 return nts;
2552 }
2553
2554
2555 static NTSTATUS query_dword_option( HANDLE hkey, LPCWSTR name, ULONG *value )
2556 {
2557 NTSTATUS status;
2558 UNICODE_STRING str;
2559 ULONG size;
2560 WCHAR buffer[64];
2561 KEY_VALUE_PARTIAL_INFORMATION *info = (KEY_VALUE_PARTIAL_INFORMATION *)buffer;
2562
2563 RtlInitUnicodeString( &str, name );
2564
2565 size = sizeof(buffer) - sizeof(WCHAR);
2566 if ((status = NtQueryValueKey( hkey, &str, KeyValuePartialInformation, buffer, size, &size )))
2567 return status;
2568
2569 if (info->Type != REG_DWORD)
2570 {
2571 buffer[size / sizeof(WCHAR)] = 0;
2572 *value = strtoulW( (WCHAR *)info->Data, 0, 16 );
2573 }
2574 else memcpy( value, info->Data, sizeof(*value) );
2575 return status;
2576 }
2577
2578 static NTSTATUS query_string_option( HANDLE hkey, LPCWSTR name, ULONG type,
2579 void *data, ULONG in_size, ULONG *out_size )
2580 {
2581 NTSTATUS status;
2582 UNICODE_STRING str;
2583 ULONG size;
2584 char *buffer;
2585 KEY_VALUE_PARTIAL_INFORMATION *info;
2586 static const int info_size = FIELD_OFFSET( KEY_VALUE_PARTIAL_INFORMATION, Data );
2587
2588 RtlInitUnicodeString( &str, name );
2589
2590 size = info_size + in_size;
2591 if (!(buffer = RtlAllocateHeap( GetProcessHeap(), 0, size ))) return STATUS_NO_MEMORY;
2592 info = (KEY_VALUE_PARTIAL_INFORMATION *)buffer;
2593 status = NtQueryValueKey( hkey, &str, KeyValuePartialInformation, buffer, size, &size );
2594 if (!status || status == STATUS_BUFFER_OVERFLOW)
2595 {
2596 if (out_size) *out_size = info->DataLength;
2597 if (data && !status) memcpy( data, info->Data, info->DataLength );
2598 }
2599 RtlFreeHeap( GetProcessHeap(), 0, buffer );
2600 return status;
2601 }
2602
2603
2604 /******************************************************************
2605 * LdrQueryImageFileExecutionOptions (NTDLL.@)
2606 */
2607 NTSTATUS WINAPI LdrQueryImageFileExecutionOptions( const UNICODE_STRING *key, LPCWSTR value, ULONG type,
2608 void *data, ULONG in_size, ULONG *out_size )
2609 {
2610 static const WCHAR optionsW[] = {'M','a','c','h','i','n','e','\\',
2611 'S','o','f','t','w','a','r','e','\\',
2612 'M','i','c','r','o','s','o','f','t','\\',
2613 'W','i','n','d','o','w','s',' ','N','T','\\',
2614 'C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',
2615 'I','m','a','g','e',' ','F','i','l','e',' ',
2616 'E','x','e','c','u','t','i','o','n',' ','O','p','t','i','o','n','s','\\'};
2617 WCHAR path[MAX_PATH + sizeof(optionsW)/sizeof(WCHAR)];
2618 OBJECT_ATTRIBUTES attr;
2619 UNICODE_STRING name_str;
2620 HANDLE hkey;
2621 NTSTATUS status;
2622 ULONG len;
2623 WCHAR *p;
2624
2625 attr.Length = sizeof(attr);
2626 attr.RootDirectory = 0;
2627 attr.ObjectName = &name_str;
2628 attr.Attributes = OBJ_CASE_INSENSITIVE;
2629 attr.SecurityDescriptor = NULL;
2630 attr.SecurityQualityOfService = NULL;
2631
2632 if ((p = memrchrW( key->Buffer, '\\', key->Length / sizeof(WCHAR) ))) p++;
2633 else p = key->Buffer;
2634 len = key->Length - (p - key->Buffer) * sizeof(WCHAR);
2635 name_str.Buffer = path;
2636 name_str.Length = sizeof(optionsW) + len;
2637 name_str.MaximumLength = name_str.Length;
2638 memcpy( path, optionsW, sizeof(optionsW) );
2639 memcpy( path + sizeof(optionsW)/sizeof(WCHAR), p, len );
2640 if ((status = NtOpenKey( &hkey, KEY_QUERY_VALUE, &attr ))) return status;
2641
2642 if (type == REG_DWORD)
2643 {
2644 if (out_size) *out_size = sizeof(ULONG);
2645 if (in_size >= sizeof(ULONG)) status = query_dword_option( hkey, value, data );
2646 else status = STATUS_BUFFER_OVERFLOW;
2647 }
2648 else status = query_string_option( hkey, value, type, data, in_size, out_size );
2649
2650 NtClose( hkey );
2651 return status;
2652 }
2653
2654
2655 /******************************************************************
2656 * RtlDllShutdownInProgress (NTDLL.@)
2657 */
2658 BOOLEAN WINAPI RtlDllShutdownInProgress(void)
2659 {
2660 return process_detaching;
2661 }
2662
2663 /****************************************************************************
2664 * LdrResolveDelayLoadedAPI (NTDLL.@)
2665 */
2666 void* WINAPI LdrResolveDelayLoadedAPI( void* base, const IMAGE_DELAYLOAD_DESCRIPTOR* desc,
2667 PDELAYLOAD_FAILURE_DLL_CALLBACK dllhook, void* syshook,
2668 IMAGE_THUNK_DATA* addr, ULONG flags )
2669 {
2670 IMAGE_THUNK_DATA *pIAT, *pINT;
2671 DELAYLOAD_INFO delayinfo;
2672 UNICODE_STRING mod;
2673 const CHAR* name;
2674 HMODULE *phmod;
2675 NTSTATUS nts;
2676 FARPROC fp;
2677 DWORD id;
2678
2679 FIXME("(%p, %p, %p, %p, %p, 0x%08x), partial stub\n", base, desc, dllhook, syshook, addr, flags);
2680
2681 phmod = get_rva(base, desc->ModuleHandleRVA);
2682 pIAT = get_rva(base, desc->ImportAddressTableRVA);
2683 pINT = get_rva(base, desc->ImportNameTableRVA);
2684 name = get_rva(base, desc->DllNameRVA);
2685 id = addr - pIAT;
2686
2687 if (!*phmod)
2688 {
2689 if (!RtlCreateUnicodeStringFromAsciiz(&mod, name))
2690 {
2691 nts = STATUS_NO_MEMORY;
2692 goto fail;
2693 }
2694 nts = LdrLoadDll(NULL, 0, &mod, phmod);
2695 RtlFreeUnicodeString(&mod);
2696 if (nts) goto fail;
2697 }
2698
2699 if (IMAGE_SNAP_BY_ORDINAL(pINT[id].u1.Ordinal))
2700 nts = LdrGetProcedureAddress(*phmod, NULL, LOWORD(pINT[id].u1.Ordinal), (void**)&fp);
2701 else
2702 {
2703 const IMAGE_IMPORT_BY_NAME* iibn = get_rva(base, pINT[id].u1.AddressOfData);
2704 ANSI_STRING fnc;
2705
2706 RtlInitAnsiString(&fnc, (char*)iibn->Name);
2707 nts = LdrGetProcedureAddress(*phmod, &fnc, 0, (void**)&fp);
2708 }
2709 if (!nts)
2710 {
2711 pIAT[id].u1.Function = (ULONG_PTR)fp;
2712 return fp;
2713 }
2714
2715 fail:
2716 delayinfo.Size = sizeof(delayinfo);
2717 delayinfo.DelayloadDescriptor = desc;
2718 delayinfo.ThunkAddress = addr;
2719 delayinfo.TargetDllName = name;
2720 delayinfo.TargetApiDescriptor.ImportDescribedByName = !IMAGE_SNAP_BY_ORDINAL(pINT[id].u1.Ordinal);
2721 delayinfo.TargetApiDescriptor.Description.Ordinal = LOWORD(pINT[id].u1.Ordinal);
2722 delayinfo.TargetModuleBase = *phmod;
2723 delayinfo.Unused = NULL;
2724 delayinfo.LastError = nts;
2725 return dllhook(4, &delayinfo);
2726 }
2727
2728 /******************************************************************
2729 * LdrShutdownProcess (NTDLL.@)
2730 *
2731 */
2732 void WINAPI LdrShutdownProcess(void)
2733 {
2734 TRACE("()\n");
2735 process_detaching = TRUE;
2736 process_detach();
2737 }
2738
2739
2740 /******************************************************************
2741 * RtlExitUserProcess (NTDLL.@)
2742 */
2743 void WINAPI RtlExitUserProcess( DWORD status )
2744 {
2745 RtlEnterCriticalSection( &loader_section );
2746 RtlAcquirePebLock();
2747 NtTerminateProcess( 0, status );
2748 LdrShutdownProcess();
2749 NtTerminateProcess( GetCurrentProcess(), status );
2750 exit( status );
2751 }
2752
2753 /******************************************************************
2754 * LdrShutdownThread (NTDLL.@)
2755 *
2756 */
2757 void WINAPI LdrShutdownThread(void)
2758 {
2759 PLIST_ENTRY mark, entry;
2760 PLDR_MODULE mod;
2761 UINT i;
2762 void **pointers;
2763
2764 TRACE("()\n");
2765
2766 /* don't do any detach calls if process is exiting */
2767 if (process_detaching) return;
2768
2769 RtlEnterCriticalSection( &loader_section );
2770
2771 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
2772 for (entry = mark->Blink; entry != mark; entry = entry->Blink)
2773 {
2774 mod = CONTAINING_RECORD(entry, LDR_MODULE,
2775 InInitializationOrderModuleList);
2776 if ( !(mod->Flags & LDR_PROCESS_ATTACHED) )
2777 continue;
2778 if ( mod->Flags & LDR_NO_DLL_CALLS )
2779 continue;
2780
2781 MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr),
2782 DLL_THREAD_DETACH, NULL );
2783 }
2784
2785 RtlAcquirePebLock();
2786 RemoveEntryList( &NtCurrentTeb()->TlsLinks );
2787 RtlReleasePebLock();
2788
2789 if ((pointers = NtCurrentTeb()->ThreadLocalStoragePointer))
2790 {
2791 for (i = 0; i < tls_module_count; i++) RtlFreeHeap( GetProcessHeap(), 0, pointers[i] );
2792 RtlFreeHeap( GetProcessHeap(), 0, pointers );
2793 }
2794 RtlFreeHeap( GetProcessHeap(), 0, NtCurrentTeb()->FlsSlots );
2795 RtlFreeHeap( GetProcessHeap(), 0, NtCurrentTeb()->TlsExpansionSlots );
2796 RtlLeaveCriticalSection( &loader_section );
2797 }
2798
2799
2800 /***********************************************************************
2801 * free_modref
2802 *
2803 */
2804 static void free_modref( WINE_MODREF *wm )
2805 {
2806 RemoveEntryList(&wm->ldr.InLoadOrderModuleList);
2807 RemoveEntryList(&wm->ldr.InMemoryOrderModuleList);
2808 if (wm->ldr.InInitializationOrderModuleList.Flink)
2809 RemoveEntryList(&wm->ldr.InInitializationOrderModuleList);
2810
2811 TRACE(" unloading %s\n", debugstr_w(wm->ldr.FullDllName.Buffer));
2812 if (!TRACE_ON(module))
2813 TRACE_(loaddll)("Unloaded module %s : %s\n",
2814 debugstr_w(wm->ldr.FullDllName.Buffer),
2815 (wm->ldr.Flags & LDR_WINE_INTERNAL) ? "builtin" : "native" );
2816
2817 SERVER_START_REQ( unload_dll )
2818 {
2819 req->base = wine_server_client_ptr( wm->ldr.BaseAddress );
2820 wine_server_call( req );
2821 }
2822 SERVER_END_REQ;
2823
2824 free_tls_slot( &wm->ldr );
2825 RtlReleaseActivationContext( wm->ldr.ActivationContext );
2826 if (wm->ldr.Flags & LDR_WINE_INTERNAL) wine_dll_unload( wm->ldr.SectionHandle );
2827 NtUnmapViewOfSection( NtCurrentProcess(), wm->ldr.BaseAddress );
2828 if (cached_modref == wm) cached_modref = NULL;
2829 RtlFreeUnicodeString( &wm->ldr.FullDllName );
2830 RtlFreeHeap( GetProcessHeap(), 0, wm->deps );
2831 RtlFreeHeap( GetProcessHeap(), 0, wm );
2832 }
2833
2834 /***********************************************************************
2835 * MODULE_FlushModrefs
2836 *
2837 * Remove all unused modrefs and call the internal unloading routines
2838 * for the library type.
2839 *
2840 * The loader_section must be locked while calling this function.
2841 */
2842 static void MODULE_FlushModrefs(void)
2843 {
2844 PLIST_ENTRY mark, entry, prev;
2845 PLDR_MODULE mod;
2846 WINE_MODREF*wm;
2847
2848 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
2849 for (entry = mark->Blink; entry != mark; entry = prev)
2850 {
2851 mod = CONTAINING_RECORD(entry, LDR_MODULE, InInitializationOrderModuleList);
2852 wm = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
2853 prev = entry->Blink;
2854 if (!mod->LoadCount) free_modref( wm );
2855 }
2856
2857 /* check load order list too for modules that haven't been initialized yet */
2858 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
2859 for (entry = mark->Blink; entry != mark; entry = prev)
2860 {
2861 mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
2862 wm = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
2863 prev = entry->Blink;
2864 if (!mod->LoadCount) free_modref( wm );
2865 }
2866 }
2867
2868 /***********************************************************************
2869 * MODULE_DecRefCount
2870 *
2871 * The loader_section must be locked while calling this function.
2872 */
2873 static void MODULE_DecRefCount( WINE_MODREF *wm )
2874 {
2875 int i;
2876
2877 if ( wm->ldr.Flags & LDR_UNLOAD_IN_PROGRESS )
2878 return;
2879
2880 if ( wm->ldr.LoadCount <= 0 )
2881 return;
2882
2883 --wm->ldr.LoadCount;
2884 TRACE("(%s) ldr.LoadCount: %d\n", debugstr_w(wm->ldr.BaseDllName.Buffer), wm->ldr.LoadCount );
2885
2886 if ( wm->ldr.LoadCount == 0 )
2887 {
2888 wm->ldr.Flags |= LDR_UNLOAD_IN_PROGRESS;
2889
2890 for ( i = 0; i < wm->nDeps; i++ )
2891 if ( wm->deps[i] )
2892 MODULE_DecRefCount( wm->deps[i] );
2893
2894 wm->ldr.Flags &= ~LDR_UNLOAD_IN_PROGRESS;
2895 }
2896 }
2897
2898 /******************************************************************
2899 * LdrUnloadDll (NTDLL.@)
2900 *
2901 *
2902 */
2903 NTSTATUS WINAPI LdrUnloadDll( HMODULE hModule )
2904 {
2905 WINE_MODREF *wm;
2906 NTSTATUS retv = STATUS_SUCCESS;
2907
2908 if (process_detaching) return retv;
2909
2910 TRACE("(%p)\n", hModule);
2911
2912 RtlEnterCriticalSection( &loader_section );
2913
2914 free_lib_count++;
2915 if ((wm = get_modref( hModule )) != NULL)
2916 {
2917 TRACE("(%s) - START\n", debugstr_w(wm->ldr.BaseDllName.Buffer));
2918
2919 /* Recursively decrement reference counts */
2920 MODULE_DecRefCount( wm );
2921
2922 /* Call process detach notifications */
2923 if ( free_lib_count <= 1 )
2924 {
2925 process_detach();
2926 MODULE_FlushModrefs();
2927 }
2928
2929 TRACE("END\n");
2930 }
2931 else
2932 retv = STATUS_DLL_NOT_FOUND;
2933
2934 free_lib_count--;
2935
2936 RtlLeaveCriticalSection( &loader_section );
2937
2938 return retv;
2939 }
2940
2941 /***********************************************************************
2942 * RtlImageNtHeader (NTDLL.@)
2943 */
2944 PIMAGE_NT_HEADERS WINAPI RtlImageNtHeader(HMODULE hModule)
2945 {
2946 IMAGE_NT_HEADERS *ret;
2947
2948 __TRY
2949 {
2950 IMAGE_DOS_HEADER *dos = (IMAGE_DOS_HEADER *)hModule;
2951
2952 ret = NULL;
2953 if (dos->e_magic == IMAGE_DOS_SIGNATURE)
2954 {
2955 ret = (IMAGE_NT_HEADERS *)((char *)dos + dos->e_lfanew);
2956 if (ret->Signature != IMAGE_NT_SIGNATURE) ret = NULL;
2957 }
2958 }
2959 __EXCEPT_PAGE_FAULT
2960 {
2961 return NULL;
2962 }
2963 __ENDTRY
2964 return ret;
2965 }
2966
2967
2968 /***********************************************************************
2969 * attach_process_dlls
2970 *
2971 * Initial attach to all the dlls loaded by the process.
2972 */
2973 static NTSTATUS attach_process_dlls( void *wm )
2974 {
2975 NTSTATUS status;
2976
2977 pthread_sigmask( SIG_UNBLOCK, &server_block_set, NULL );
2978
2979 RtlEnterCriticalSection( &loader_section );
2980 if ((status = process_attach( wm, (LPVOID)1 )) != STATUS_SUCCESS)
2981 {
2982 if (last_failed_modref)
2983 ERR( "%s failed to initialize, aborting\n",
2984 debugstr_w(last_failed_modref->ldr.BaseDllName.Buffer) + 1 );
2985 return status;
2986 }
2987 attach_implicitly_loaded_dlls( (LPVOID)1 );
2988 RtlLeaveCriticalSection( &loader_section );
2989 return status;
2990 }
2991
2992
2993 /***********************************************************************
2994 * load_global_options
2995 */
2996 static void load_global_options(void)
2997 {
2998 static const WCHAR sessionW[] = {'M','a','c','h','i','n','e','\\',
2999 'S','y','s','t','e','m','\\',
3000 'C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
3001 'C','o','n','t','r','o','l','\\',
3002 'S','e','s','s','i','o','n',' ','M','a','n','a','g','e','r',0};
3003 static const WCHAR globalflagW[] = {'G','l','o','b','a','l','F','l','a','g',0};
3004 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};
3005 static const WCHAR heapresW[] = {'H','e','a','p','S','e','g','m','e','n','t','R','e','s','e','r','v','e',0};
3006 static const WCHAR heapcommitW[] = {'H','e','a','p','S','e','g','m','e','n','t','C','o','m','m','i','t',0};
3007 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};
3008 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};
3009
3010 OBJECT_ATTRIBUTES attr;
3011 UNICODE_STRING name_str;
3012 HANDLE hkey;
3013 ULONG value;
3014
3015 attr.Length = sizeof(attr);
3016 attr.RootDirectory = 0;
3017 attr.ObjectName = &name_str;
3018 attr.Attributes = OBJ_CASE_INSENSITIVE;
3019 attr.SecurityDescriptor = NULL;
3020 attr.SecurityQualityOfService = NULL;
3021 RtlInitUnicodeString( &name_str, sessionW );
3022
3023 if (NtOpenKey( &hkey, KEY_QUERY_VALUE, &attr )) return;
3024
3025 query_dword_option( hkey, globalflagW, &NtCurrentTeb()->Peb->NtGlobalFlag );
3026
3027 query_dword_option( hkey, critsectW, &value );
3028 NtCurrentTeb()->Peb->CriticalSectionTimeout.QuadPart = (ULONGLONG)value * -10000000;
3029
3030 query_dword_option( hkey, heapresW, &value );
3031 NtCurrentTeb()->Peb->HeapSegmentReserve = value;
3032
3033 query_dword_option( hkey, heapcommitW, &value );
3034 NtCurrentTeb()->Peb->HeapSegmentCommit = value;
3035
3036 query_dword_option( hkey, decommittotalW, &value );
3037 NtCurrentTeb()->Peb->HeapDeCommitTotalFreeThreshold = value;
3038
3039 query_dword_option( hkey, decommitfreeW, &value );
3040 NtCurrentTeb()->Peb->HeapDeCommitFreeBlockThreshold = value;
3041
3042 NtClose( hkey );
3043 }
3044
3045
3046 /***********************************************************************
3047 * start_process
3048 */
3049 static void start_process( void *kernel_start )
3050 {
3051 call_thread_entry_point( kernel_start, NtCurrentTeb()->Peb );
3052 }
3053
3054 /******************************************************************
3055 * LdrInitializeThunk (NTDLL.@)
3056 *
3057 */
3058 void WINAPI LdrInitializeThunk( void *kernel_start, ULONG_PTR unknown2,
3059 ULONG_PTR unknown3, ULONG_PTR unknown4 )
3060 {
3061 static const WCHAR globalflagW[] = {'G','l','o','b','a','l','F','l','a','g',0};
3062 NTSTATUS status;
3063 WINE_MODREF *wm;
3064 LPCWSTR load_path;
3065 PEB *peb = NtCurrentTeb()->Peb;
3066
3067 if (main_exe_file) NtClose( main_exe_file ); /* at this point the main module is created */
3068
3069 /* allocate the modref for the main exe (if not already done) */
3070 wm = get_modref( peb->ImageBaseAddress );
3071 assert( wm );
3072 if (wm->ldr.Flags & LDR_IMAGE_IS_DLL)
3073 {
3074 ERR("%s is a dll, not an executable\n", debugstr_w(wm->ldr.FullDllName.Buffer) );
3075 exit(1);
3076 }
3077
3078 peb->LoaderLock = &loader_section;
3079 peb->ProcessParameters->ImagePathName = wm->ldr.FullDllName;
3080 if (!peb->ProcessParameters->WindowTitle.Buffer)
3081 peb->ProcessParameters->WindowTitle = wm->ldr.FullDllName;
3082 version_init( wm->ldr.FullDllName.Buffer );
3083 virtual_set_large_address_space();
3084
3085 LdrQueryImageFileExecutionOptions( &peb->ProcessParameters->ImagePathName, globalflagW,
3086 REG_DWORD, &peb->NtGlobalFlag, sizeof(peb->NtGlobalFlag), NULL );
3087
3088 /* the main exe needs to be the first in the load order list */
3089 RemoveEntryList( &wm->ldr.InLoadOrderModuleList );
3090 InsertHeadList( &peb->LdrData->InLoadOrderModuleList, &wm->ldr.InLoadOrderModuleList );
3091
3092 if ((status = virtual_alloc_thread_stack( NtCurrentTeb(), 0, 0 )) != STATUS_SUCCESS) goto error;
3093 if ((status = server_init_process_done()) != STATUS_SUCCESS) goto error;
3094
3095 actctx_init();
3096 load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
3097 if ((status = fixup_imports( wm, load_path )) != STATUS_SUCCESS) goto error;
3098 heap_set_debug_flags( GetProcessHeap() );
3099
3100 status = wine_call_on_stack( attach_process_dlls, wm, NtCurrentTeb()->Tib.StackBase );
3101 if (status != STATUS_SUCCESS) goto error;
3102
3103 virtual_release_address_space();
3104 virtual_clear_thread_stack();
3105 wine_switch_to_stack( start_process, kernel_start, NtCurrentTeb()->Tib.StackBase );
3106
3107 error:
3108 ERR( "Main exe initialization for %s failed, status %x\n",
3109 debugstr_w(peb->ProcessParameters->ImagePathName.Buffer), status );
3110 NtTerminateProcess( GetCurrentProcess(), status );
3111 }
3112
3113
3114 /***********************************************************************
3115 * RtlImageDirectoryEntryToData (NTDLL.@)
3116 */
3117 PVOID WINAPI RtlImageDirectoryEntryToData( HMODULE module, BOOL image, WORD dir, ULONG *size )
3118 {
3119 const IMAGE_NT_HEADERS *nt;
3120 DWORD addr;
3121
3122 if ((ULONG_PTR)module & 1) /* mapped as data file */
3123 {
3124 module = (HMODULE)((ULONG_PTR)module & ~1);
3125 image = FALSE;
3126 }
3127 if (!(nt = RtlImageNtHeader( module ))) return NULL;
3128 if (nt->OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR64_MAGIC)
3129 {
3130 const IMAGE_NT_HEADERS64 *nt64 = (const IMAGE_NT_HEADERS64 *)nt;
3131
3132 if (dir >= nt64->OptionalHeader.NumberOfRvaAndSizes) return NULL;
3133 if (!(addr = nt64->OptionalHeader.DataDirectory[dir].VirtualAddress)) return NULL;
3134 *size = nt64->OptionalHeader.DataDirectory[dir].Size;
3135 if (image || addr < nt64->OptionalHeader.SizeOfHeaders) return (char *)module + addr;
3136 }
3137 else if (nt->OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR32_MAGIC)
3138 {
3139 const IMAGE_NT_HEADERS32 *nt32 = (const IMAGE_NT_HEADERS32 *)nt;
3140
3141 if (dir >= nt32->OptionalHeader.NumberOfRvaAndSizes) return NULL;
3142 if (!(addr = nt32->OptionalHeader.DataDirectory[dir].VirtualAddress)) return NULL;
3143 *size = nt32->OptionalHeader.DataDirectory[dir].Size;
3144 if (image || addr < nt32->OptionalHeader.SizeOfHeaders) return (char *)module + addr;
3145 }
3146 else return NULL;
3147
3148 /* not mapped as image, need to find the section containing the virtual address */
3149 return RtlImageRvaToVa( nt, module, addr, NULL );
3150 }
3151
3152
3153 /***********************************************************************
3154 * RtlImageRvaToSection (NTDLL.@)
3155 */
3156 PIMAGE_SECTION_HEADER WINAPI RtlImageRvaToSection( const IMAGE_NT_HEADERS *nt,
3157 HMODULE module, DWORD rva )
3158 {
3159 int i;
3160 const IMAGE_SECTION_HEADER *sec;
3161
3162 sec = (const IMAGE_SECTION_HEADER*)((const char*)&nt->OptionalHeader +
3163 nt->FileHeader.SizeOfOptionalHeader);
3164 for (i = 0; i < nt->FileHeader.NumberOfSections; i++, sec++)
3165 {
3166 if ((sec->VirtualAddress <= rva) && (sec->VirtualAddress + sec->SizeOfRawData > rva))
3167 return (PIMAGE_SECTION_HEADER)sec;
3168 }
3169 return NULL;
3170 }
3171
3172
3173 /***********************************************************************
3174 * RtlImageRvaToVa (NTDLL.@)
3175 */
3176 PVOID WINAPI RtlImageRvaToVa( const IMAGE_NT_HEADERS *nt, HMODULE module,
3177 DWORD rva, IMAGE_SECTION_HEADER **section )
3178 {
3179 IMAGE_SECTION_HEADER *sec;
3180
3181 if (section && *section) /* try this section first */
3182 {
3183 sec = *section;
3184 if ((sec->VirtualAddress <= rva) && (sec->VirtualAddress + sec->SizeOfRawData > rva))
3185 goto found;
3186 }
3187 if (!(sec = RtlImageRvaToSection( nt, module, rva ))) return NULL;
3188 found:
3189 if (section) *section = sec;
3190 return (char *)module + sec->PointerToRawData + (rva - sec->VirtualAddress);
3191 }
3192
3193
3194 /***********************************************************************
3195 * RtlPcToFileHeader (NTDLL.@)
3196 */
3197 PVOID WINAPI RtlPcToFileHeader( PVOID pc, PVOID *address )
3198 {
3199 LDR_MODULE *module;
3200 PVOID ret = NULL;
3201
3202 RtlEnterCriticalSection( &loader_section );
3203 if (!LdrFindEntryForAddress( pc, &module )) ret = module->BaseAddress;
3204 RtlLeaveCriticalSection( &loader_section );
3205 *address = ret;
3206 return ret;
3207 }
3208
3209
3210 /***********************************************************************
3211 * NtLoadDriver (NTDLL.@)
3212 * ZwLoadDriver (NTDLL.@)
3213 */
3214 NTSTATUS WINAPI NtLoadDriver( const UNICODE_STRING *DriverServiceName )
3215 {
3216 FIXME("(%p), stub!\n",DriverServiceName);
3217 return STATUS_NOT_IMPLEMENTED;
3218 }
3219
3220
3221 /***********************************************************************
3222 * NtUnloadDriver (NTDLL.@)
3223 * ZwUnloadDriver (NTDLL.@)
3224 */
3225 NTSTATUS WINAPI NtUnloadDriver( const UNICODE_STRING *DriverServiceName )
3226 {
3227 FIXME("(%p), stub!\n",DriverServiceName);
3228 return STATUS_NOT_IMPLEMENTED;
3229 }
3230
3231
3232 /******************************************************************
3233 * DllMain (NTDLL.@)
3234 */
3235 BOOL WINAPI DllMain( HINSTANCE inst, DWORD reason, LPVOID reserved )
3236 {
3237 if (reason == DLL_PROCESS_ATTACH) LdrDisableThreadCalloutsForDll( inst );
3238 return TRUE;
3239 }
3240
3241
3242 /******************************************************************
3243 * __wine_init_windows_dir (NTDLL.@)
3244 *
3245 * Windows and system dir initialization once kernel32 has been loaded.
3246 */
3247 void CDECL __wine_init_windows_dir( const WCHAR *windir, const WCHAR *sysdir )
3248 {
3249 PLIST_ENTRY mark, entry;
3250 LPWSTR buffer, p;
3251
3252 strcpyW( user_shared_data->NtSystemRoot, windir );
3253 DIR_init_windows_dir( windir, sysdir );
3254
3255 /* prepend the system dir to the name of the already created modules */
3256 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
3257 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
3258 {
3259 LDR_MODULE *mod = CONTAINING_RECORD( entry, LDR_MODULE, InLoadOrderModuleList );
3260
3261 assert( mod->Flags & LDR_WINE_INTERNAL );
3262
3263 buffer = RtlAllocateHeap( GetProcessHeap(), 0,
3264 system_dir.Length + mod->FullDllName.Length + 2*sizeof(WCHAR) );
3265 if (!buffer) continue;
3266 strcpyW( buffer, system_dir.Buffer );
3267 p = buffer + strlenW( buffer );
3268 if (p > buffer && p[-1] != '\\') *p++ = '\\';
3269 strcpyW( p, mod->FullDllName.Buffer );
3270 RtlInitUnicodeString( &mod->FullDllName, buffer );
3271 RtlInitUnicodeString( &mod->BaseDllName, p );
3272 }
3273 }
3274
3275
3276 /***********************************************************************
3277 * __wine_process_init
3278 */
3279 void __wine_process_init(void)
3280 {
3281 static const WCHAR kernel32W[] = {'k','e','r','n','e','l','3','2','.','d','l','l',0};
3282
3283 WINE_MODREF *wm;
3284 NTSTATUS status;
3285 ANSI_STRING func_name;
3286 void (* DECLSPEC_NORETURN CDECL init_func)(void);
3287
3288 main_exe_file = thread_init();
3289
3290 /* retrieve current umask */
3291 FILE_umask = umask(0777);
3292 umask( FILE_umask );
3293
3294 load_global_options();
3295
3296 /* setup the load callback and create ntdll modref */
3297 wine_dll_set_callback( load_builtin_callback );
3298
3299 if ((status = load_builtin_dll( NULL, kernel32W, 0, 0, &wm )) != STATUS_SUCCESS)
3300 {
3301 MESSAGE( "wine: could not load kernel32.dll, status %x\n", status );
3302 exit(1);
3303 }
3304 RtlInitAnsiString( &func_name, "UnhandledExceptionFilter" );
3305 LdrGetProcedureAddress( wm->ldr.BaseAddress, &func_name, 0, (void **)&unhandled_exception_filter );
3306
3307 RtlInitAnsiString( &func_name, "__wine_kernel_init" );
3308 if ((status = LdrGetProcedureAddress( wm->ldr.BaseAddress, &func_name,
3309 0, (void **)&init_func )) != STATUS_SUCCESS)
3310 {
3311 MESSAGE( "wine: could not find __wine_kernel_init in kernel32.dll, status %x\n", status );
3312 exit(1);
3313 }
3314 init_func();
3315 }
Windows API implementation