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mshtml: Don't crash creating a URI if we have no document.
[wine.git] / dlls / ntdll / loader.c
blobf1ef7ab1bdd64b9118f560b959c212657c558317
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 }
359 return NULL;
360 }
361
362
363 /**********************************************************************
364 * find_basename_module
365 *
366 * Find a module from its base name.
367 * The loader_section must be locked while calling this function
368 */
369 static WINE_MODREF *find_basename_module( LPCWSTR name )
370 {
371 PLIST_ENTRY mark, entry;
372
373 if (cached_modref && !strcmpiW( name, cached_modref->ldr.BaseDllName.Buffer ))
374 return cached_modref;
375
376 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
377 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
378 {
379 LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
380 if (!strcmpiW( name, mod->BaseDllName.Buffer ))
381 {
382 cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
383 return cached_modref;
384 }
385 }
386 return NULL;
387 }
388
389
390 /**********************************************************************
391 * find_fullname_module
392 *
393 * Find a module from its full path name.
394 * The loader_section must be locked while calling this function
395 */
396 static WINE_MODREF *find_fullname_module( LPCWSTR name )
397 {
398 PLIST_ENTRY mark, entry;
399
400 if (cached_modref && !strcmpiW( name, cached_modref->ldr.FullDllName.Buffer ))
401 return cached_modref;
402
403 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
404 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
405 {
406 LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
407 if (!strcmpiW( name, mod->FullDllName.Buffer ))
408 {
409 cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
410 return cached_modref;
411 }
412 }
413 return NULL;
414 }
415
416
417 /*************************************************************************
418 * find_forwarded_export
419 *
420 * Find the final function pointer for a forwarded function.
421 * The loader_section must be locked while calling this function.
422 */
423 static FARPROC find_forwarded_export( HMODULE module, const char *forward, LPCWSTR load_path )
424 {
425 const IMAGE_EXPORT_DIRECTORY *exports;
426 DWORD exp_size;
427 WINE_MODREF *wm;
428 WCHAR mod_name[32];
429 const char *end = strrchr(forward, '.');
430 FARPROC proc = NULL;
431
432 if (!end) return NULL;
433 if ((end - forward) * sizeof(WCHAR) >= sizeof(mod_name)) return NULL;
434 ascii_to_unicode( mod_name, forward, end - forward );
435 mod_name[end - forward] = 0;
436 if (!strchrW( mod_name, '.' ))
437 {
438 if ((end - forward) * sizeof(WCHAR) >= sizeof(mod_name) - sizeof(dllW)) return NULL;
439 memcpy( mod_name + (end - forward), dllW, sizeof(dllW) );
440 }
441
442 if (!(wm = find_basename_module( mod_name )))
443 {
444 TRACE( "delay loading %s for '%s'\n", debugstr_w(mod_name), forward );
445 if (load_dll( load_path, mod_name, 0, &wm ) == STATUS_SUCCESS &&
446 !(wm->ldr.Flags & LDR_DONT_RESOLVE_REFS))
447 {
448 if (process_attach( wm, NULL ) != STATUS_SUCCESS)
449 {
450 LdrUnloadDll( wm->ldr.BaseAddress );
451 wm = NULL;
452 }
453 }
454
455 if (!wm)
456 {
457 ERR( "module not found for forward '%s' used by %s\n",
458 forward, debugstr_w(get_modref(module)->ldr.FullDllName.Buffer) );
459 return NULL;
460 }
461 }
462 if ((exports = RtlImageDirectoryEntryToData( wm->ldr.BaseAddress, TRUE,
463 IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size )))
464 {
465 const char *name = end + 1;
466 if (*name == '#') /* ordinal */
467 proc = find_ordinal_export( wm->ldr.BaseAddress, exports, exp_size, atoi(name+1), load_path );
468 else
469 proc = find_named_export( wm->ldr.BaseAddress, exports, exp_size, name, -1, load_path );
470 }
471
472 if (!proc)
473 {
474 ERR("function not found for forward '%s' used by %s."
475 " If you are using builtin %s, try using the native one instead.\n",
476 forward, debugstr_w(get_modref(module)->ldr.FullDllName.Buffer),
477 debugstr_w(get_modref(module)->ldr.BaseDllName.Buffer) );
478 }
479 return proc;
480 }
481
482
483 /*************************************************************************
484 * find_ordinal_export
485 *
486 * Find an exported function by ordinal.
487 * The exports base must have been subtracted from the ordinal already.
488 * The loader_section must be locked while calling this function.
489 */
490 static FARPROC find_ordinal_export( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports,
491 DWORD exp_size, DWORD ordinal, LPCWSTR load_path )
492 {
493 FARPROC proc;
494 const DWORD *functions = get_rva( module, exports->AddressOfFunctions );
495
496 if (ordinal >= exports->NumberOfFunctions)
497 {
498 TRACE(" ordinal %d out of range!\n", ordinal + exports->Base );
499 return NULL;
500 }
501 if (!functions[ordinal]) return NULL;
502
503 proc = get_rva( module, functions[ordinal] );
504
505 /* if the address falls into the export dir, it's a forward */
506 if (((const char *)proc >= (const char *)exports) &&
507 ((const char *)proc < (const char *)exports + exp_size))
508 return find_forwarded_export( module, (const char *)proc, load_path );
509
510 if (TRACE_ON(snoop))
511 {
512 const WCHAR *user = current_modref ? current_modref->ldr.BaseDllName.Buffer : NULL;
513 proc = SNOOP_GetProcAddress( module, exports, exp_size, proc, ordinal, user );
514 }
515 if (TRACE_ON(relay))
516 {
517 const WCHAR *user = current_modref ? current_modref->ldr.BaseDllName.Buffer : NULL;
518 proc = RELAY_GetProcAddress( module, exports, exp_size, proc, ordinal, user );
519 }
520 return proc;
521 }
522
523
524 /*************************************************************************
525 * find_named_export
526 *
527 * Find an exported function by name.
528 * The loader_section must be locked while calling this function.
529 */
530 static FARPROC find_named_export( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports,
531 DWORD exp_size, const char *name, int hint, LPCWSTR load_path )
532 {
533 const WORD *ordinals = get_rva( module, exports->AddressOfNameOrdinals );
534 const DWORD *names = get_rva( module, exports->AddressOfNames );
535 int min = 0, max = exports->NumberOfNames - 1;
536
537 /* first check the hint */
538 if (hint >= 0 && hint <= max)
539 {
540 char *ename = get_rva( module, names[hint] );
541 if (!strcmp( ename, name ))
542 return find_ordinal_export( module, exports, exp_size, ordinals[hint], load_path );
543 }
544
545 /* then do a binary search */
546 while (min <= max)
547 {
548 int res, pos = (min + max) / 2;
549 char *ename = get_rva( module, names[pos] );
550 if (!(res = strcmp( ename, name )))
551 return find_ordinal_export( module, exports, exp_size, ordinals[pos], load_path );
552 if (res > 0) max = pos - 1;
553 else min = pos + 1;
554 }
555 return NULL;
556
557 }
558
559
560 /*************************************************************************
561 * import_dll
562 *
563 * Import the dll specified by the given import descriptor.
564 * The loader_section must be locked while calling this function.
565 */
566 static BOOL import_dll( HMODULE module, const IMAGE_IMPORT_DESCRIPTOR *descr, LPCWSTR load_path, WINE_MODREF **pwm )
567 {
568 NTSTATUS status;
569 WINE_MODREF *wmImp;
570 HMODULE imp_mod;
571 const IMAGE_EXPORT_DIRECTORY *exports;
572 DWORD exp_size;
573 const IMAGE_THUNK_DATA *import_list;
574 IMAGE_THUNK_DATA *thunk_list;
575 WCHAR buffer[32];
576 const char *name = get_rva( module, descr->Name );
577 DWORD len = strlen(name);
578 PVOID protect_base;
579 SIZE_T protect_size = 0;
580 DWORD protect_old;
581
582 thunk_list = get_rva( module, (DWORD)descr->FirstThunk );
583 if (descr->u.OriginalFirstThunk)
584 import_list = get_rva( module, (DWORD)descr->u.OriginalFirstThunk );
585 else
586 import_list = thunk_list;
587
588 if (!import_list->u1.Ordinal)
589 {
590 WARN( "Skipping unused import %s\n", name );
591 *pwm = NULL;
592 return TRUE;
593 }
594
595 while (len && name[len-1] == ' ') len--; /* remove trailing spaces */
596
597 if (len * sizeof(WCHAR) < sizeof(buffer))
598 {
599 ascii_to_unicode( buffer, name, len );
600 buffer[len] = 0;
601 status = load_dll( load_path, buffer, 0, &wmImp );
602 }
603 else /* need to allocate a larger buffer */
604 {
605 WCHAR *ptr = RtlAllocateHeap( GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR) );
606 if (!ptr) return FALSE;
607 ascii_to_unicode( ptr, name, len );
608 ptr[len] = 0;
609 status = load_dll( load_path, ptr, 0, &wmImp );
610 RtlFreeHeap( GetProcessHeap(), 0, ptr );
611 }
612
613 if (status)
614 {
615 if (status == STATUS_DLL_NOT_FOUND)
616 ERR("Library %s (which is needed by %s) not found\n",
617 name, debugstr_w(current_modref->ldr.FullDllName.Buffer));
618 else
619 ERR("Loading library %s (which is needed by %s) failed (error %x).\n",
620 name, debugstr_w(current_modref->ldr.FullDllName.Buffer), status);
621 return FALSE;
622 }
623
624 /* unprotect the import address table since it can be located in
625 * readonly section */
626 while (import_list[protect_size].u1.Ordinal) protect_size++;
627 protect_base = thunk_list;
628 protect_size *= sizeof(*thunk_list);
629 NtProtectVirtualMemory( NtCurrentProcess(), &protect_base,
630 &protect_size, PAGE_READWRITE, &protect_old );
631
632 imp_mod = wmImp->ldr.BaseAddress;
633 exports = RtlImageDirectoryEntryToData( imp_mod, TRUE, IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size );
634
635 if (!exports)
636 {
637 /* set all imported function to deadbeef */
638 while (import_list->u1.Ordinal)
639 {
640 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal))
641 {
642 int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
643 WARN("No implementation for %s.%d", name, ordinal );
644 thunk_list->u1.Function = allocate_stub( name, IntToPtr(ordinal) );
645 }
646 else
647 {
648 IMAGE_IMPORT_BY_NAME *pe_name = get_rva( module, (DWORD)import_list->u1.AddressOfData );
649 WARN("No implementation for %s.%s", name, pe_name->Name );
650 thunk_list->u1.Function = allocate_stub( name, (const char*)pe_name->Name );
651 }
652 WARN(" imported from %s, allocating stub %p\n",
653 debugstr_w(current_modref->ldr.FullDllName.Buffer),
654 (void *)thunk_list->u1.Function );
655 import_list++;
656 thunk_list++;
657 }
658 goto done;
659 }
660
661 while (import_list->u1.Ordinal)
662 {
663 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal))
664 {
665 int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
666
667 thunk_list->u1.Function = (ULONG_PTR)find_ordinal_export( imp_mod, exports, exp_size,
668 ordinal - exports->Base, load_path );
669 if (!thunk_list->u1.Function)
670 {
671 thunk_list->u1.Function = allocate_stub( name, IntToPtr(ordinal) );
672 WARN("No implementation for %s.%d imported from %s, setting to %p\n",
673 name, ordinal, debugstr_w(current_modref->ldr.FullDllName.Buffer),
674 (void *)thunk_list->u1.Function );
675 }
676 TRACE_(imports)("--- Ordinal %s.%d = %p\n", name, ordinal, (void *)thunk_list->u1.Function );
677 }
678 else /* import by name */
679 {
680 IMAGE_IMPORT_BY_NAME *pe_name;
681 pe_name = get_rva( module, (DWORD)import_list->u1.AddressOfData );
682 thunk_list->u1.Function = (ULONG_PTR)find_named_export( imp_mod, exports, exp_size,
683 (const char*)pe_name->Name,
684 pe_name->Hint, load_path );
685 if (!thunk_list->u1.Function)
686 {
687 thunk_list->u1.Function = allocate_stub( name, (const char*)pe_name->Name );
688 WARN("No implementation for %s.%s imported from %s, setting to %p\n",
689 name, pe_name->Name, debugstr_w(current_modref->ldr.FullDllName.Buffer),
690 (void *)thunk_list->u1.Function );
691 }
692 TRACE_(imports)("--- %s %s.%d = %p\n",
693 pe_name->Name, name, pe_name->Hint, (void *)thunk_list->u1.Function);
694 }
695 import_list++;
696 thunk_list++;
697 }
698
699 done:
700 /* restore old protection of the import address table */
701 NtProtectVirtualMemory( NtCurrentProcess(), &protect_base, &protect_size, protect_old, &protect_old );
702 *pwm = wmImp;
703 return TRUE;
704 }
705
706
707 /***********************************************************************
708 * create_module_activation_context
709 */
710 static NTSTATUS create_module_activation_context( LDR_MODULE *module )
711 {
712 NTSTATUS status;
713 LDR_RESOURCE_INFO info;
714 const IMAGE_RESOURCE_DATA_ENTRY *entry;
715
716 info.Type = RT_MANIFEST;
717 info.Name = ISOLATIONAWARE_MANIFEST_RESOURCE_ID;
718 info.Language = 0;
719 if (!(status = LdrFindResource_U( module->BaseAddress, &info, 3, &entry )))
720 {
721 ACTCTXW ctx;
722 ctx.cbSize = sizeof(ctx);
723 ctx.lpSource = NULL;
724 ctx.dwFlags = ACTCTX_FLAG_RESOURCE_NAME_VALID | ACTCTX_FLAG_HMODULE_VALID;
725 ctx.hModule = module->BaseAddress;
726 ctx.lpResourceName = (LPCWSTR)ISOLATIONAWARE_MANIFEST_RESOURCE_ID;
727 status = RtlCreateActivationContext( &module->ActivationContext, &ctx );
728 }
729 return status;
730 }
731
732
733 /*************************************************************************
734 * is_dll_native_subsystem
735 *
736 * Check if dll is a proper native driver.
737 * Some dlls (corpol.dll from IE6 for instance) are incorrectly marked as native
738 * while being perfectly normal DLLs. This heuristic should catch such breakages.
739 */
740 static BOOL is_dll_native_subsystem( HMODULE module, const IMAGE_NT_HEADERS *nt, LPCWSTR filename )
741 {
742 static const WCHAR ntdllW[] = {'n','t','d','l','l','.','d','l','l',0};
743 static const WCHAR kernel32W[] = {'k','e','r','n','e','l','3','2','.','d','l','l',0};
744 const IMAGE_IMPORT_DESCRIPTOR *imports;
745 DWORD i, size;
746 WCHAR buffer[16];
747
748 if (nt->OptionalHeader.Subsystem != IMAGE_SUBSYSTEM_NATIVE) return FALSE;
749 if (nt->OptionalHeader.SectionAlignment < page_size) return TRUE;
750
751 if ((imports = RtlImageDirectoryEntryToData( module, TRUE,
752 IMAGE_DIRECTORY_ENTRY_IMPORT, &size )))
753 {
754 for (i = 0; imports[i].Name; i++)
755 {
756 const char *name = get_rva( module, imports[i].Name );
757 DWORD len = strlen(name);
758 if (len * sizeof(WCHAR) >= sizeof(buffer)) continue;
759 ascii_to_unicode( buffer, name, len + 1 );
760 if (!strcmpiW( buffer, ntdllW ) || !strcmpiW( buffer, kernel32W ))
761 {
762 TRACE( "%s imports %s, assuming not native\n", debugstr_w(filename), debugstr_w(buffer) );
763 return FALSE;
764 }
765 }
766 }
767 return TRUE;
768 }
769
770 /*************************************************************************
771 * alloc_tls_slot
772 *
773 * Allocate a TLS slot for a newly-loaded module.
774 * The loader_section must be locked while calling this function.
775 */
776 static SHORT alloc_tls_slot( LDR_MODULE *mod )
777 {
778 const IMAGE_TLS_DIRECTORY *dir;
779 ULONG i, size;
780 void *new_ptr;
781 LIST_ENTRY *entry;
782
783 if (!(dir = RtlImageDirectoryEntryToData( mod->BaseAddress, TRUE, IMAGE_DIRECTORY_ENTRY_TLS, &size )))
784 return -1;
785
786 size = dir->EndAddressOfRawData - dir->StartAddressOfRawData;
787 if (!size && !dir->SizeOfZeroFill && !dir->AddressOfCallBacks) return -1;
788
789 for (i = 0; i < tls_module_count; i++)
790 {
791 if (!tls_dirs[i].StartAddressOfRawData && !tls_dirs[i].EndAddressOfRawData &&
792 !tls_dirs[i].SizeOfZeroFill && !tls_dirs[i].AddressOfCallBacks)
793 break;
794 }
795
796 TRACE( "module %p data %p-%p zerofill %u index %p callback %p flags %x -> slot %u\n", mod->BaseAddress,
797 (void *)dir->StartAddressOfRawData, (void *)dir->EndAddressOfRawData, dir->SizeOfZeroFill,
798 (void *)dir->AddressOfIndex, (void *)dir->AddressOfCallBacks, dir->Characteristics, i );
799
800 if (i == tls_module_count)
801 {
802 UINT new_count = max( 32, tls_module_count * 2 );
803
804 if (!tls_dirs)
805 new_ptr = RtlAllocateHeap( GetProcessHeap(), HEAP_ZERO_MEMORY, new_count * sizeof(*tls_dirs) );
806 else
807 new_ptr = RtlReAllocateHeap( GetProcessHeap(), HEAP_ZERO_MEMORY, tls_dirs,
808 new_count * sizeof(*tls_dirs) );
809 if (!new_ptr) return -1;
810
811 /* resize the pointer block in all running threads */
812 for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
813 {
814 TEB *teb = CONTAINING_RECORD( entry, TEB, TlsLinks );
815 void **old = teb->ThreadLocalStoragePointer;
816 void **new = RtlAllocateHeap( GetProcessHeap(), HEAP_ZERO_MEMORY, new_count * sizeof(*new));
817
818 if (!new) return -1;
819 if (old) memcpy( new, old, tls_module_count * sizeof(*new) );
820 teb->ThreadLocalStoragePointer = new;
821 #if defined(__APPLE__) && defined(__x86_64__)
822 if (teb->Reserved5[0])
823 ((TEB*)teb->Reserved5[0])->ThreadLocalStoragePointer = new;
824 #endif
825 TRACE( "thread %04lx tls block %p -> %p\n", (ULONG_PTR)teb->ClientId.UniqueThread, old, new );
826 /* FIXME: can't free old block here, should be freed at thread exit */
827 }
828
829 tls_dirs = new_ptr;
830 tls_module_count = new_count;
831 }
832
833 /* allocate the data block in all running threads */
834 for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
835 {
836 TEB *teb = CONTAINING_RECORD( entry, TEB, TlsLinks );
837
838 if (!(new_ptr = RtlAllocateHeap( GetProcessHeap(), 0, size + dir->SizeOfZeroFill ))) return -1;
839 memcpy( new_ptr, (void *)dir->StartAddressOfRawData, size );
840 memset( (char *)new_ptr + size, 0, dir->SizeOfZeroFill );
841
842 TRACE( "thread %04lx slot %u: %u/%u bytes at %p\n",
843 (ULONG_PTR)teb->ClientId.UniqueThread, i, size, dir->SizeOfZeroFill, new_ptr );
844
845 RtlFreeHeap( GetProcessHeap(), 0,
846 interlocked_xchg_ptr( (void **)teb->ThreadLocalStoragePointer + i, new_ptr ));
847 }
848
849 *(DWORD *)dir->AddressOfIndex = i;
850 tls_dirs[i] = *dir;
851 return i;
852 }
853
854
855 /*************************************************************************
856 * free_tls_slot
857 *
858 * Free the module TLS slot on unload.
859 * The loader_section must be locked while calling this function.
860 */
861 static void free_tls_slot( LDR_MODULE *mod )
862 {
863 ULONG i = (USHORT)mod->TlsIndex;
864
865 if (mod->TlsIndex == -1) return;
866 assert( i < tls_module_count );
867 memset( &tls_dirs[i], 0, sizeof(tls_dirs[i]) );
868 }
869
870
871 /****************************************************************
872 * fixup_imports
873 *
874 * Fixup all imports of a given module.
875 * The loader_section must be locked while calling this function.
876 */
877 static NTSTATUS fixup_imports( WINE_MODREF *wm, LPCWSTR load_path )
878 {
879 int i, nb_imports;
880 const IMAGE_IMPORT_DESCRIPTOR *imports;
881 WINE_MODREF *prev;
882 DWORD size;
883 NTSTATUS status;
884 ULONG_PTR cookie;
885
886 if (!(wm->ldr.Flags & LDR_DONT_RESOLVE_REFS)) return STATUS_SUCCESS; /* already done */
887 wm->ldr.Flags &= ~LDR_DONT_RESOLVE_REFS;
888
889 wm->ldr.TlsIndex = alloc_tls_slot( &wm->ldr );
890
891 if (!(imports = RtlImageDirectoryEntryToData( wm->ldr.BaseAddress, TRUE,
892 IMAGE_DIRECTORY_ENTRY_IMPORT, &size )))
893 return STATUS_SUCCESS;
894
895 nb_imports = 0;
896 while (imports[nb_imports].Name && imports[nb_imports].FirstThunk) nb_imports++;
897
898 if (!nb_imports) return STATUS_SUCCESS; /* no imports */
899
900 if (!create_module_activation_context( &wm->ldr ))
901 RtlActivateActivationContext( 0, wm->ldr.ActivationContext, &cookie );
902
903 /* Allocate module dependency list */
904 wm->nDeps = nb_imports;
905 wm->deps = RtlAllocateHeap( GetProcessHeap(), 0, nb_imports*sizeof(WINE_MODREF *) );
906
907 /* load the imported modules. They are automatically
908 * added to the modref list of the process.
909 */
910 prev = current_modref;
911 current_modref = wm;
912 status = STATUS_SUCCESS;
913 for (i = 0; i < nb_imports; i++)
914 {
915 if (!import_dll( wm->ldr.BaseAddress, &imports[i], load_path, &wm->deps[i] ))
916 {
917 wm->deps[i] = NULL;
918 status = STATUS_DLL_NOT_FOUND;
919 }
920 }
921 current_modref = prev;
922 if (wm->ldr.ActivationContext) RtlDeactivateActivationContext( 0, cookie );
923 return status;
924 }
925
926
927 /*************************************************************************
928 * alloc_module
929 *
930 * Allocate a WINE_MODREF structure and add it to the process list
931 * The loader_section must be locked while calling this function.
932 */
933 static WINE_MODREF *alloc_module( HMODULE hModule, LPCWSTR filename )
934 {
935 WINE_MODREF *wm;
936 const WCHAR *p;
937 const IMAGE_NT_HEADERS *nt = RtlImageNtHeader(hModule);
938
939 if (!(wm = RtlAllocateHeap( GetProcessHeap(), 0, sizeof(*wm) ))) return NULL;
940
941 wm->nDeps = 0;
942 wm->deps = NULL;
943
944 wm->ldr.BaseAddress = hModule;
945 wm->ldr.EntryPoint = NULL;
946 wm->ldr.SizeOfImage = nt->OptionalHeader.SizeOfImage;
947 wm->ldr.Flags = LDR_DONT_RESOLVE_REFS;
948 wm->ldr.TlsIndex = -1;
949 wm->ldr.LoadCount = 1;
950 wm->ldr.SectionHandle = NULL;
951 wm->ldr.CheckSum = 0;
952 wm->ldr.TimeDateStamp = 0;
953 wm->ldr.ActivationContext = 0;
954
955 RtlCreateUnicodeString( &wm->ldr.FullDllName, filename );
956 if ((p = strrchrW( wm->ldr.FullDllName.Buffer, '\\' ))) p++;
957 else p = wm->ldr.FullDllName.Buffer;
958 RtlInitUnicodeString( &wm->ldr.BaseDllName, p );
959
960 if (!(nt->FileHeader.Characteristics & IMAGE_FILE_DLL) || !is_dll_native_subsystem( hModule, nt, p ))
961 {
962 if (nt->FileHeader.Characteristics & IMAGE_FILE_DLL)
963 wm->ldr.Flags |= LDR_IMAGE_IS_DLL;
964 if (nt->OptionalHeader.AddressOfEntryPoint)
965 wm->ldr.EntryPoint = (char *)hModule + nt->OptionalHeader.AddressOfEntryPoint;
966 }
967
968 InsertTailList(&NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList,
969 &wm->ldr.InLoadOrderModuleList);
970 InsertTailList(&NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList,
971 &wm->ldr.InMemoryOrderModuleList);
972
973 /* wait until init is called for inserting into this list */
974 wm->ldr.InInitializationOrderModuleList.Flink = NULL;
975 wm->ldr.InInitializationOrderModuleList.Blink = NULL;
976
977 if (!(nt->OptionalHeader.DllCharacteristics & IMAGE_DLLCHARACTERISTICS_NX_COMPAT))
978 {
979 ULONG flags = MEM_EXECUTE_OPTION_ENABLE;
980 WARN( "disabling no-exec because of %s\n", debugstr_w(wm->ldr.BaseDllName.Buffer) );
981 NtSetInformationProcess( GetCurrentProcess(), ProcessExecuteFlags, &flags, sizeof(flags) );
982 }
983 return wm;
984 }
985
986
987 /*************************************************************************
988 * alloc_thread_tls
989 *
990 * Allocate the per-thread structure for module TLS storage.
991 */
992 static NTSTATUS alloc_thread_tls(void)
993 {
994 void **pointers;
995 UINT i, size;
996
997 if (!tls_module_count) return STATUS_SUCCESS;
998
999 if (!(pointers = RtlAllocateHeap( GetProcessHeap(), HEAP_ZERO_MEMORY,
1000 tls_module_count * sizeof(*pointers) )))
1001 return STATUS_NO_MEMORY;
1002
1003 for (i = 0; i < tls_module_count; i++)
1004 {
1005 const IMAGE_TLS_DIRECTORY *dir = &tls_dirs[i];
1006
1007 if (!dir) continue;
1008 size = dir->EndAddressOfRawData - dir->StartAddressOfRawData;
1009 if (!size && !dir->SizeOfZeroFill) continue;
1010
1011 if (!(pointers[i] = RtlAllocateHeap( GetProcessHeap(), 0, size + dir->SizeOfZeroFill )))
1012 {
1013 while (i) RtlFreeHeap( GetProcessHeap(), 0, pointers[--i] );
1014 RtlFreeHeap( GetProcessHeap(), 0, pointers );
1015 return STATUS_NO_MEMORY;
1016 }
1017 memcpy( pointers[i], (void *)dir->StartAddressOfRawData, size );
1018 memset( (char *)pointers[i] + size, 0, dir->SizeOfZeroFill );
1019
1020 TRACE( "thread %04x slot %u: %u/%u bytes at %p\n",
1021 GetCurrentThreadId(), i, size, dir->SizeOfZeroFill, pointers[i] );
1022 }
1023 NtCurrentTeb()->ThreadLocalStoragePointer = pointers;
1024 #if defined(__APPLE__) && defined(__x86_64__)
1025 __asm__ volatile (".byte 0x65\n\tmovq %0,%c1"
1026 :
1027 : "r" (pointers), "n" (FIELD_OFFSET(TEB, ThreadLocalStoragePointer)));
1028 #endif
1029 return STATUS_SUCCESS;
1030 }
1031
1032
1033 /*************************************************************************
1034 * call_tls_callbacks
1035 */
1036 static void call_tls_callbacks( HMODULE module, UINT reason )
1037 {
1038 const IMAGE_TLS_DIRECTORY *dir;
1039 const PIMAGE_TLS_CALLBACK *callback;
1040 ULONG dirsize;
1041
1042 dir = RtlImageDirectoryEntryToData( module, TRUE, IMAGE_DIRECTORY_ENTRY_TLS, &dirsize );
1043 if (!dir || !dir->AddressOfCallBacks) return;
1044
1045 for (callback = (const PIMAGE_TLS_CALLBACK *)dir->AddressOfCallBacks; *callback; callback++)
1046 {
1047 if (TRACE_ON(relay))
1048 {
1049 if (TRACE_ON(pid))
1050 DPRINTF( "%04x:", GetCurrentProcessId() );
1051 DPRINTF("%04x:Call TLS callback (proc=%p,module=%p,reason=%s,reserved=0)\n",
1052 GetCurrentThreadId(), *callback, module, reason_names[reason] );
1053 }
1054 __TRY
1055 {
1056 call_dll_entry_point( (DLLENTRYPROC)*callback, module, reason, NULL );
1057 }
1058 __EXCEPT_ALL
1059 {
1060 if (TRACE_ON(relay))
1061 {
1062 if (TRACE_ON(pid))
1063 DPRINTF( "%04x:", GetCurrentProcessId() );
1064 DPRINTF("%04x:exception in TLS callback (proc=%p,module=%p,reason=%s,reserved=0)\n",
1065 GetCurrentThreadId(), callback, module, reason_names[reason] );
1066 }
1067 return;
1068 }
1069 __ENDTRY
1070 if (TRACE_ON(relay))
1071 {
1072 if (TRACE_ON(pid))
1073 DPRINTF( "%04x:", GetCurrentProcessId() );
1074 DPRINTF("%04x:Ret TLS callback (proc=%p,module=%p,reason=%s,reserved=0)\n",
1075 GetCurrentThreadId(), *callback, module, reason_names[reason] );
1076 }
1077 }
1078 }
1079
1080
1081 /*************************************************************************
1082 * MODULE_InitDLL
1083 */
1084 static NTSTATUS MODULE_InitDLL( WINE_MODREF *wm, UINT reason, LPVOID lpReserved )
1085 {
1086 WCHAR mod_name[32];
1087 NTSTATUS status = STATUS_SUCCESS;
1088 DLLENTRYPROC entry = wm->ldr.EntryPoint;
1089 void *module = wm->ldr.BaseAddress;
1090 BOOL retv = FALSE;
1091
1092 /* Skip calls for modules loaded with special load flags */
1093
1094 if (wm->ldr.Flags & LDR_DONT_RESOLVE_REFS) return STATUS_SUCCESS;
1095 if (wm->ldr.TlsIndex != -1) call_tls_callbacks( wm->ldr.BaseAddress, reason );
1096 if (!entry || !(wm->ldr.Flags & LDR_IMAGE_IS_DLL)) return STATUS_SUCCESS;
1097
1098 if (TRACE_ON(relay))
1099 {
1100 size_t len = min( wm->ldr.BaseDllName.Length, sizeof(mod_name)-sizeof(WCHAR) );
1101 memcpy( mod_name, wm->ldr.BaseDllName.Buffer, len );
1102 mod_name[len / sizeof(WCHAR)] = 0;
1103 if (TRACE_ON(pid))
1104 DPRINTF( "%04x:", GetCurrentProcessId() );
1105 DPRINTF("%04x:Call PE DLL (proc=%p,module=%p %s,reason=%s,res=%p)\n",
1106 GetCurrentThreadId(), entry, module, debugstr_w(mod_name),
1107 reason_names[reason], lpReserved );
1108 }
1109 else TRACE("(%p %s,%s,%p) - CALL\n", module, debugstr_w(wm->ldr.BaseDllName.Buffer),
1110 reason_names[reason], lpReserved );
1111
1112 __TRY
1113 {
1114 retv = call_dll_entry_point( entry, module, reason, lpReserved );
1115 if (!retv)
1116 status = STATUS_DLL_INIT_FAILED;
1117 }
1118 __EXCEPT_ALL
1119 {
1120 if (TRACE_ON(relay))
1121 {
1122 if (TRACE_ON(pid))
1123 DPRINTF( "%04x:", GetCurrentProcessId() );
1124 DPRINTF("%04x:exception in PE entry point (proc=%p,module=%p,reason=%s,res=%p)\n",
1125 GetCurrentThreadId(), entry, module, reason_names[reason], lpReserved );
1126 }
1127 status = GetExceptionCode();
1128 }
1129 __ENDTRY
1130
1131 /* The state of the module list may have changed due to the call
1132 to the dll. We cannot assume that this module has not been
1133 deleted. */
1134 if (TRACE_ON(relay))
1135 {
1136 if (TRACE_ON(pid))
1137 DPRINTF( "%04x:", GetCurrentProcessId() );
1138 DPRINTF("%04x:Ret PE DLL (proc=%p,module=%p %s,reason=%s,res=%p) retval=%x\n",
1139 GetCurrentThreadId(), entry, module, debugstr_w(mod_name),
1140 reason_names[reason], lpReserved, retv );
1141 }
1142 else TRACE("(%p,%s,%p) - RETURN %d\n", module, reason_names[reason], lpReserved, retv );
1143
1144 return status;
1145 }
1146
1147
1148 /*************************************************************************
1149 * process_attach
1150 *
1151 * Send the process attach notification to all DLLs the given module
1152 * depends on (recursively). This is somewhat complicated due to the fact that
1153 *
1154 * - we have to respect the module dependencies, i.e. modules implicitly
1155 * referenced by another module have to be initialized before the module
1156 * itself can be initialized
1157 *
1158 * - the initialization routine of a DLL can itself call LoadLibrary,
1159 * thereby introducing a whole new set of dependencies (even involving
1160 * the 'old' modules) at any time during the whole process
1161 *
1162 * (Note that this routine can be recursively entered not only directly
1163 * from itself, but also via LoadLibrary from one of the called initialization
1164 * routines.)
1165 *
1166 * Furthermore, we need to rearrange the main WINE_MODREF list to allow
1167 * the process *detach* notifications to be sent in the correct order.
1168 * This must not only take into account module dependencies, but also
1169 * 'hidden' dependencies created by modules calling LoadLibrary in their
1170 * attach notification routine.
1171 *
1172 * The strategy is rather simple: we move a WINE_MODREF to the head of the
1173 * list after the attach notification has returned. This implies that the
1174 * detach notifications are called in the reverse of the sequence the attach
1175 * notifications *returned*.
1176 *
1177 * The loader_section must be locked while calling this function.
1178 */
1179 static NTSTATUS process_attach( WINE_MODREF *wm, LPVOID lpReserved )
1180 {
1181 NTSTATUS status = STATUS_SUCCESS;
1182 ULONG_PTR cookie;
1183 int i;
1184
1185 if (process_detaching) return status;
1186
1187 /* prevent infinite recursion in case of cyclical dependencies */
1188 if ( ( wm->ldr.Flags & LDR_LOAD_IN_PROGRESS )
1189 || ( wm->ldr.Flags & LDR_PROCESS_ATTACHED ) )
1190 return status;
1191
1192 TRACE("(%s,%p) - START\n", debugstr_w(wm->ldr.BaseDllName.Buffer), lpReserved );
1193
1194 /* Tag current MODREF to prevent recursive loop */
1195 wm->ldr.Flags |= LDR_LOAD_IN_PROGRESS;
1196 if (lpReserved) wm->ldr.LoadCount = -1; /* pin it if imported by the main exe */
1197 if (wm->ldr.ActivationContext) RtlActivateActivationContext( 0, wm->ldr.ActivationContext, &cookie );
1198
1199 /* Recursively attach all DLLs this one depends on */
1200 for ( i = 0; i < wm->nDeps; i++ )
1201 {
1202 if (!wm->deps[i]) continue;
1203 if ((status = process_attach( wm->deps[i], lpReserved )) != STATUS_SUCCESS) break;
1204 }
1205
1206 if (!wm->ldr.InInitializationOrderModuleList.Flink)
1207 InsertTailList(&NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList,
1208 &wm->ldr.InInitializationOrderModuleList);
1209
1210 /* Call DLL entry point */
1211 if (status == STATUS_SUCCESS)
1212 {
1213 WINE_MODREF *prev = current_modref;
1214 current_modref = wm;
1215 status = MODULE_InitDLL( wm, DLL_PROCESS_ATTACH, lpReserved );
1216 if (status == STATUS_SUCCESS)
1217 wm->ldr.Flags |= LDR_PROCESS_ATTACHED;
1218 else
1219 {
1220 MODULE_InitDLL( wm, DLL_PROCESS_DETACH, lpReserved );
1221 /* point to the name so LdrInitializeThunk can print it */
1222 last_failed_modref = wm;
1223 WARN("Initialization of %s failed\n", debugstr_w(wm->ldr.BaseDllName.Buffer));
1224 }
1225 current_modref = prev;
1226 }
1227
1228 if (wm->ldr.ActivationContext) RtlDeactivateActivationContext( 0, cookie );
1229 /* Remove recursion flag */
1230 wm->ldr.Flags &= ~LDR_LOAD_IN_PROGRESS;
1231
1232 TRACE("(%s,%p) - END\n", debugstr_w(wm->ldr.BaseDllName.Buffer), lpReserved );
1233 return status;
1234 }
1235
1236
1237 /**********************************************************************
1238 * attach_implicitly_loaded_dlls
1239 *
1240 * Attach to the (builtin) dlls that have been implicitly loaded because
1241 * of a dependency at the Unix level, but not imported at the Win32 level.
1242 */
1243 static void attach_implicitly_loaded_dlls( LPVOID reserved )
1244 {
1245 for (;;)
1246 {
1247 PLIST_ENTRY mark, entry;
1248
1249 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
1250 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1251 {
1252 LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
1253
1254 if (mod->Flags & (LDR_LOAD_IN_PROGRESS | LDR_PROCESS_ATTACHED)) continue;
1255 TRACE( "found implicitly loaded %s, attaching to it\n",
1256 debugstr_w(mod->BaseDllName.Buffer));
1257 process_attach( CONTAINING_RECORD(mod, WINE_MODREF, ldr), reserved );
1258 break; /* restart the search from the start */
1259 }
1260 if (entry == mark) break; /* nothing found */
1261 }
1262 }
1263
1264
1265 /*************************************************************************
1266 * process_detach
1267 *
1268 * Send DLL process detach notifications. See the comment about calling
1269 * sequence at process_attach.
1270 */
1271 static void process_detach(void)
1272 {
1273 PLIST_ENTRY mark, entry;
1274 PLDR_MODULE mod;
1275
1276 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
1277 do
1278 {
1279 for (entry = mark->Blink; entry != mark; entry = entry->Blink)
1280 {
1281 mod = CONTAINING_RECORD(entry, LDR_MODULE,
1282 InInitializationOrderModuleList);
1283 /* Check whether to detach this DLL */
1284 if ( !(mod->Flags & LDR_PROCESS_ATTACHED) )
1285 continue;
1286 if ( mod->LoadCount && !process_detaching )
1287 continue;
1288
1289 /* Call detach notification */
1290 mod->Flags &= ~LDR_PROCESS_ATTACHED;
1291 MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr),
1292 DLL_PROCESS_DETACH, ULongToPtr(process_detaching) );
1293
1294 /* Restart at head of WINE_MODREF list, as entries might have
1295 been added and/or removed while performing the call ... */
1296 break;
1297 }
1298 } while (entry != mark);
1299 }
1300
1301 /*************************************************************************
1302 * MODULE_DllThreadAttach
1303 *
1304 * Send DLL thread attach notifications. These are sent in the
1305 * reverse sequence of process detach notification.
1306 *
1307 */
1308 NTSTATUS MODULE_DllThreadAttach( LPVOID lpReserved )
1309 {
1310 PLIST_ENTRY mark, entry;
1311 PLDR_MODULE mod;
1312 NTSTATUS status;
1313
1314 /* don't do any attach calls if process is exiting */
1315 if (process_detaching) return STATUS_SUCCESS;
1316
1317 RtlEnterCriticalSection( &loader_section );
1318
1319 RtlAcquirePebLock();
1320 InsertHeadList( &tls_links, &NtCurrentTeb()->TlsLinks );
1321 RtlReleasePebLock();
1322
1323 if ((status = alloc_thread_tls()) != STATUS_SUCCESS) goto done;
1324
1325 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
1326 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1327 {
1328 mod = CONTAINING_RECORD(entry, LDR_MODULE,
1329 InInitializationOrderModuleList);
1330 if ( !(mod->Flags & LDR_PROCESS_ATTACHED) )
1331 continue;
1332 if ( mod->Flags & LDR_NO_DLL_CALLS )
1333 continue;
1334
1335 MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr),
1336 DLL_THREAD_ATTACH, lpReserved );
1337 }
1338
1339 done:
1340 RtlLeaveCriticalSection( &loader_section );
1341 return status;
1342 }
1343
1344 /******************************************************************
1345 * LdrDisableThreadCalloutsForDll (NTDLL.@)
1346 *
1347 */
1348 NTSTATUS WINAPI LdrDisableThreadCalloutsForDll(HMODULE hModule)
1349 {
1350 WINE_MODREF *wm;
1351 NTSTATUS ret = STATUS_SUCCESS;
1352
1353 RtlEnterCriticalSection( &loader_section );
1354
1355 wm = get_modref( hModule );
1356 if (!wm || wm->ldr.TlsIndex != -1)
1357 ret = STATUS_DLL_NOT_FOUND;
1358 else
1359 wm->ldr.Flags |= LDR_NO_DLL_CALLS;
1360
1361 RtlLeaveCriticalSection( &loader_section );
1362
1363 return ret;
1364 }
1365
1366 /******************************************************************
1367 * LdrFindEntryForAddress (NTDLL.@)
1368 *
1369 * The loader_section must be locked while calling this function
1370 */
1371 NTSTATUS WINAPI LdrFindEntryForAddress(const void* addr, PLDR_MODULE* pmod)
1372 {
1373 PLIST_ENTRY mark, entry;
1374 PLDR_MODULE mod;
1375
1376 mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
1377 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1378 {
1379 mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
1380 if (mod->BaseAddress <= addr &&
1381 (const char *)addr < (char*)mod->BaseAddress + mod->SizeOfImage)
1382 {
1383 *pmod = mod;
1384 return STATUS_SUCCESS;
1385 }
1386 }
1387 return STATUS_NO_MORE_ENTRIES;
1388 }
1389
1390 /******************************************************************
1391 * LdrLockLoaderLock (NTDLL.@)
1392 *
1393 * Note: some flags are not implemented.
1394 * Flag 0x01 is used to raise exceptions on errors.
1395 */
1396 NTSTATUS WINAPI LdrLockLoaderLock( ULONG flags, ULONG *result, ULONG_PTR *magic )
1397 {
1398 if (flags & ~0x2) FIXME( "flags %x not supported\n", flags );
1399
1400 if (result) *result = 0;
1401 if (magic) *magic = 0;
1402 if (flags & ~0x3) return STATUS_INVALID_PARAMETER_1;
1403 if (!result && (flags & 0x2)) return STATUS_INVALID_PARAMETER_2;
1404 if (!magic) return STATUS_INVALID_PARAMETER_3;
1405
1406 if (flags & 0x2)
1407 {
1408 if (!RtlTryEnterCriticalSection( &loader_section ))
1409 {
1410 *result = 2;
1411 return STATUS_SUCCESS;
1412 }
1413 *result = 1;
1414 }
1415 else
1416 {
1417 RtlEnterCriticalSection( &loader_section );
1418 if (result) *result = 1;
1419 }
1420 *magic = GetCurrentThreadId();
1421 return STATUS_SUCCESS;
1422 }
1423
1424
1425 /******************************************************************
1426 * LdrUnlockLoaderUnlock (NTDLL.@)
1427 */
1428 NTSTATUS WINAPI LdrUnlockLoaderLock( ULONG flags, ULONG_PTR magic )
1429 {
1430 if (magic)
1431 {
1432 if (magic != GetCurrentThreadId()) return STATUS_INVALID_PARAMETER_2;
1433 RtlLeaveCriticalSection( &loader_section );
1434 }
1435 return STATUS_SUCCESS;
1436 }
1437
1438
1439 /******************************************************************
1440 * LdrGetProcedureAddress (NTDLL.@)
1441 */
1442 NTSTATUS WINAPI LdrGetProcedureAddress(HMODULE module, const ANSI_STRING *name,
1443 ULONG ord, PVOID *address)
1444 {
1445 IMAGE_EXPORT_DIRECTORY *exports;
1446 DWORD exp_size;
1447 NTSTATUS ret = STATUS_PROCEDURE_NOT_FOUND;
1448
1449 RtlEnterCriticalSection( &loader_section );
1450
1451 /* check if the module itself is invalid to return the proper error */
1452 if (!get_modref( module )) ret = STATUS_DLL_NOT_FOUND;
1453 else if ((exports = RtlImageDirectoryEntryToData( module, TRUE,
1454 IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size )))
1455 {
1456 LPCWSTR load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
1457 void *proc = name ? find_named_export( module, exports, exp_size, name->Buffer, -1, load_path )
1458 : find_ordinal_export( module, exports, exp_size, ord - exports->Base, load_path );
1459 if (proc)
1460 {
1461 *address = proc;
1462 ret = STATUS_SUCCESS;
1463 }
1464 }
1465
1466 RtlLeaveCriticalSection( &loader_section );
1467 return ret;
1468 }
1469
1470
1471 /***********************************************************************
1472 * is_fake_dll
1473 *
1474 * Check if a loaded native dll is a Wine fake dll.
1475 */
1476 static BOOL is_fake_dll( HANDLE handle )
1477 {
1478 static const char fakedll_signature[] = "Wine placeholder DLL";
1479 char buffer[sizeof(IMAGE_DOS_HEADER) + sizeof(fakedll_signature)];
1480 const IMAGE_DOS_HEADER *dos = (const IMAGE_DOS_HEADER *)buffer;
1481 IO_STATUS_BLOCK io;
1482 LARGE_INTEGER offset;
1483
1484 offset.QuadPart = 0;
1485 if (NtReadFile( handle, 0, NULL, 0, &io, buffer, sizeof(buffer), &offset, NULL )) return FALSE;
1486 if (io.Information < sizeof(buffer)) return FALSE;
1487 if (dos->e_magic != IMAGE_DOS_SIGNATURE) return FALSE;
1488 if (dos->e_lfanew >= sizeof(*dos) + sizeof(fakedll_signature) &&
1489 !memcmp( dos + 1, fakedll_signature, sizeof(fakedll_signature) )) return TRUE;
1490 return FALSE;
1491 }
1492
1493
1494 /***********************************************************************
1495 * get_builtin_fullname
1496 *
1497 * Build the full pathname for a builtin dll.
1498 */
1499 static WCHAR *get_builtin_fullname( const WCHAR *path, const char *filename )
1500 {
1501 static const WCHAR soW[] = {'.','s','o',0};
1502 WCHAR *p, *fullname;
1503 size_t i, len = strlen(filename);
1504
1505 /* check if path can correspond to the dll we have */
1506 if (path && (p = strrchrW( path, '\\' )))
1507 {
1508 p++;
1509 for (i = 0; i < len; i++)
1510 if (tolowerW(p[i]) != tolowerW( (WCHAR)filename[i]) ) break;
1511 if (i == len && (!p[len] || !strcmpiW( p + len, soW )))
1512 {
1513 /* the filename matches, use path as the full path */
1514 len += p - path;
1515 if ((fullname = RtlAllocateHeap( GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR) )))
1516 {
1517 memcpy( fullname, path, len * sizeof(WCHAR) );
1518 fullname[len] = 0;
1519 }
1520 return fullname;
1521 }
1522 }
1523
1524 if ((fullname = RtlAllocateHeap( GetProcessHeap(), 0,
1525 system_dir.MaximumLength + (len + 1) * sizeof(WCHAR) )))
1526 {
1527 memcpy( fullname, system_dir.Buffer, system_dir.Length );
1528 p = fullname + system_dir.Length / sizeof(WCHAR);
1529 if (p > fullname && p[-1] != '\\') *p++ = '\\';
1530 ascii_to_unicode( p, filename, len + 1 );
1531 }
1532 return fullname;
1533 }
1534
1535
1536 /*************************************************************************
1537 * is_16bit_builtin
1538 */
1539 static BOOL is_16bit_builtin( HMODULE module )
1540 {
1541 const IMAGE_EXPORT_DIRECTORY *exports;
1542 DWORD exp_size;
1543
1544 if (!(exports = RtlImageDirectoryEntryToData( module, TRUE,
1545 IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size )))
1546 return FALSE;
1547
1548 return find_named_export( module, exports, exp_size, "__wine_spec_dos_header", -1, NULL ) != NULL;
1549 }
1550
1551
1552 /***********************************************************************
1553 * load_builtin_callback
1554 *
1555 * Load a library in memory; callback function for wine_dll_register
1556 */
1557 static void load_builtin_callback( void *module, const char *filename )
1558 {
1559 static const WCHAR emptyW[1];
1560 IMAGE_NT_HEADERS *nt;
1561 WINE_MODREF *wm;
1562 WCHAR *fullname;
1563 const WCHAR *load_path;
1564
1565 if (!module)
1566 {
1567 ERR("could not map image for %s\n", filename ? filename : "main exe" );
1568 return;
1569 }
1570 if (!(nt = RtlImageNtHeader( module )))
1571 {
1572 ERR( "bad module for %s\n", filename ? filename : "main exe" );
1573 builtin_load_info->status = STATUS_INVALID_IMAGE_FORMAT;
1574 return;
1575 }
1576
1577 virtual_create_builtin_view( module );
1578
1579 /* create the MODREF */
1580
1581 if (!(fullname = get_builtin_fullname( builtin_load_info->filename, filename )))
1582 {
1583 ERR( "can't load %s\n", filename );
1584 builtin_load_info->status = STATUS_NO_MEMORY;
1585 return;
1586 }
1587
1588 wm = alloc_module( module, fullname );
1589 RtlFreeHeap( GetProcessHeap(), 0, fullname );
1590 if (!wm)
1591 {
1592 ERR( "can't load %s\n", filename );
1593 builtin_load_info->status = STATUS_NO_MEMORY;
1594 return;
1595 }
1596 wm->ldr.Flags |= LDR_WINE_INTERNAL;
1597
1598 if ((nt->FileHeader.Characteristics & IMAGE_FILE_DLL) ||
1599 nt->OptionalHeader.Subsystem == IMAGE_SUBSYSTEM_NATIVE ||
1600 is_16bit_builtin( module ))
1601 {
1602 /* fixup imports */
1603
1604 load_path = builtin_load_info->load_path;
1605 if (!load_path) load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
1606 if (!load_path) load_path = emptyW;
1607 if (fixup_imports( wm, load_path ) != STATUS_SUCCESS)
1608 {
1609 /* the module has only be inserted in the load & memory order lists */
1610 RemoveEntryList(&wm->ldr.InLoadOrderModuleList);
1611 RemoveEntryList(&wm->ldr.InMemoryOrderModuleList);
1612 /* FIXME: free the modref */
1613 builtin_load_info->status = STATUS_DLL_NOT_FOUND;
1614 return;
1615 }
1616 }
1617
1618 builtin_load_info->wm = wm;
1619 TRACE( "loaded %s %p %p\n", filename, wm, module );
1620
1621 /* send the DLL load event */
1622
1623 SERVER_START_REQ( load_dll )
1624 {
1625 req->mapping = 0;
1626 req->base = wine_server_client_ptr( module );
1627 req->size = nt->OptionalHeader.SizeOfImage;
1628 req->dbg_offset = nt->FileHeader.PointerToSymbolTable;
1629 req->dbg_size = nt->FileHeader.NumberOfSymbols;
1630 req->name = wine_server_client_ptr( &wm->ldr.FullDllName.Buffer );
1631 wine_server_add_data( req, wm->ldr.FullDllName.Buffer, wm->ldr.FullDllName.Length );
1632 wine_server_call( req );
1633 }
1634 SERVER_END_REQ;
1635
1636 /* setup relay debugging entry points */
1637 if (TRACE_ON(relay)) RELAY_SetupDLL( module );
1638 }
1639
1640
1641 /***********************************************************************
1642 * set_security_cookie
1643 *
1644 * Create a random security cookie for buffer overflow protection. Make
1645 * sure it does not accidentally match the default cookie value.
1646 */
1647 static void set_security_cookie( void *module, SIZE_T len )
1648 {
1649 static ULONG seed;
1650 IMAGE_LOAD_CONFIG_DIRECTORY *loadcfg;
1651 ULONG loadcfg_size;
1652 ULONG_PTR *cookie;
1653
1654 loadcfg = RtlImageDirectoryEntryToData( module, TRUE, IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG, &loadcfg_size );
1655 if (!loadcfg) return;
1656 if (loadcfg_size < offsetof(IMAGE_LOAD_CONFIG_DIRECTORY, SecurityCookie) + sizeof(loadcfg->SecurityCookie)) return;
1657 if (!loadcfg->SecurityCookie) return;
1658 if (loadcfg->SecurityCookie < (ULONG_PTR)module ||
1659 loadcfg->SecurityCookie > (ULONG_PTR)module + len - sizeof(ULONG_PTR))
1660 {
1661 WARN( "security cookie %p outside of image %p-%p\n",
1662 (void *)loadcfg->SecurityCookie, module, (char *)module + len );
1663 return;
1664 }
1665
1666 cookie = (ULONG_PTR *)loadcfg->SecurityCookie;
1667 TRACE( "initializing security cookie %p\n", cookie );
1668
1669 if (!seed) seed = NtGetTickCount() ^ GetCurrentProcessId();
1670 for (;;)
1671 {
1672 if (*cookie == DEFAULT_SECURITY_COOKIE_16)
1673 *cookie = RtlRandom( &seed ) >> 16; /* leave the high word clear */
1674 else if (*cookie == DEFAULT_SECURITY_COOKIE_32)
1675 *cookie = RtlRandom( &seed );
1676 #ifdef DEFAULT_SECURITY_COOKIE_64
1677 else if (*cookie == DEFAULT_SECURITY_COOKIE_64)
1678 {
1679 *cookie = RtlRandom( &seed );
1680 /* fill up, but keep the highest word clear */
1681 *cookie ^= (ULONG_PTR)RtlRandom( &seed ) << 16;
1682 }
1683 #endif
1684 else
1685 break;
1686 }
1687 }
1688
1689 static NTSTATUS perform_relocations( void *module, SIZE_T len )
1690 {
1691 IMAGE_NT_HEADERS *nt;
1692 char *base;
1693 IMAGE_BASE_RELOCATION *rel, *end;
1694 const IMAGE_DATA_DIRECTORY *relocs;
1695 const IMAGE_SECTION_HEADER *sec;
1696 INT_PTR delta;
1697 ULONG protect_old[96], i;
1698
1699 nt = RtlImageNtHeader( module );
1700 base = (char *)nt->OptionalHeader.ImageBase;
1701
1702 assert( module != base );
1703
1704 /* no relocations are performed on non page-aligned binaries */
1705 if (nt->OptionalHeader.SectionAlignment < page_size)
1706 return STATUS_SUCCESS;
1707
1708 if (!(nt->FileHeader.Characteristics & IMAGE_FILE_DLL) && NtCurrentTeb()->Peb->ImageBaseAddress)
1709 return STATUS_SUCCESS;
1710
1711 relocs = &nt->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC];
1712
1713 if (nt->FileHeader.Characteristics & IMAGE_FILE_RELOCS_STRIPPED)
1714 {
1715 WARN( "Need to relocate module from %p to %p, but there are no relocation records\n",
1716 base, module );
1717 return STATUS_CONFLICTING_ADDRESSES;
1718 }
1719
1720 if (!relocs->Size) return STATUS_SUCCESS;
1721 if (!relocs->VirtualAddress) return STATUS_CONFLICTING_ADDRESSES;
1722
1723 if (nt->FileHeader.NumberOfSections > sizeof(protect_old)/sizeof(protect_old[0]))
1724 return STATUS_INVALID_IMAGE_FORMAT;
1725
1726 sec = (const IMAGE_SECTION_HEADER *)((const char *)&nt->OptionalHeader +
1727 nt->FileHeader.SizeOfOptionalHeader);
1728 for (i = 0; i < nt->FileHeader.NumberOfSections; i++)
1729 {
1730 void *addr = get_rva( module, sec[i].VirtualAddress );
1731 SIZE_T size = sec[i].SizeOfRawData;
1732 NtProtectVirtualMemory( NtCurrentProcess(), &addr,
1733 &size, PAGE_READWRITE, &protect_old[i] );
1734 }
1735
1736 TRACE( "relocating from %p-%p to %p-%p\n",
1737 base, base + len, module, (char *)module + len );
1738
1739 rel = get_rva( module, relocs->VirtualAddress );
1740 end = get_rva( module, relocs->VirtualAddress + relocs->Size );
1741 delta = (char *)module - base;
1742
1743 while (rel < end - 1 && rel->SizeOfBlock)
1744 {
1745 if (rel->VirtualAddress >= len)
1746 {
1747 WARN( "invalid address %p in relocation %p\n", get_rva( module, rel->VirtualAddress ), rel );
1748 return STATUS_ACCESS_VIOLATION;
1749 }
1750 rel = LdrProcessRelocationBlock( get_rva( module, rel->VirtualAddress ),
1751 (rel->SizeOfBlock - sizeof(*rel)) / sizeof(USHORT),
1752 (USHORT *)(rel + 1), delta );
1753 if (!rel) return STATUS_INVALID_IMAGE_FORMAT;
1754 }
1755
1756 for (i = 0; i < nt->FileHeader.NumberOfSections; i++)
1757 {
1758 void *addr = get_rva( module, sec[i].VirtualAddress );
1759 SIZE_T size = sec[i].SizeOfRawData;
1760 NtProtectVirtualMemory( NtCurrentProcess(), &addr,
1761 &size, protect_old[i], &protect_old[i] );
1762 }
1763
1764 return STATUS_SUCCESS;
1765 }
1766
1767 /******************************************************************************
1768 * load_native_dll (internal)
1769 */
1770 static NTSTATUS load_native_dll( LPCWSTR load_path, LPCWSTR name, HANDLE file,
1771 DWORD flags, WINE_MODREF** pwm )
1772 {
1773 void *module;
1774 HANDLE mapping;
1775 LARGE_INTEGER size;
1776 IMAGE_NT_HEADERS *nt;
1777 SIZE_T len = 0;
1778 WINE_MODREF *wm;
1779 NTSTATUS status;
1780
1781 TRACE("Trying native dll %s\n", debugstr_w(name));
1782
1783 size.QuadPart = 0;
1784 status = NtCreateSection( &mapping, STANDARD_RIGHTS_REQUIRED | SECTION_QUERY | SECTION_MAP_READ,
1785 NULL, &size, PAGE_EXECUTE_READ, SEC_IMAGE, file );
1786 if (status != STATUS_SUCCESS) return status;
1787
1788 module = NULL;
1789 status = NtMapViewOfSection( mapping, NtCurrentProcess(),
1790 &module, 0, 0, &size, &len, ViewShare, 0, PAGE_EXECUTE_READ );
1791
1792 /* perform base relocation, if necessary */
1793
1794 if (status == STATUS_IMAGE_NOT_AT_BASE)
1795 status = perform_relocations( module, len );
1796
1797 if (status != STATUS_SUCCESS)
1798 {
1799 if (module) NtUnmapViewOfSection( NtCurrentProcess(), module );
1800 goto done;
1801 }
1802
1803 /* create the MODREF */
1804
1805 if (!(wm = alloc_module( module, name )))
1806 {
1807 status = STATUS_NO_MEMORY;
1808 goto done;
1809 }
1810
1811 set_security_cookie( module, len );
1812
1813 /* fixup imports */
1814
1815 nt = RtlImageNtHeader( module );
1816
1817 if (!(flags & DONT_RESOLVE_DLL_REFERENCES) &&
1818 ((nt->FileHeader.Characteristics & IMAGE_FILE_DLL) ||
1819 nt->OptionalHeader.Subsystem == IMAGE_SUBSYSTEM_NATIVE))
1820 {
1821 if ((status = fixup_imports( wm, load_path )) != STATUS_SUCCESS)
1822 {
1823 /* the module has only be inserted in the load & memory order lists */
1824 RemoveEntryList(&wm->ldr.InLoadOrderModuleList);
1825 RemoveEntryList(&wm->ldr.InMemoryOrderModuleList);
1826
1827 /* FIXME: there are several more dangling references
1828 * left. Including dlls loaded by this dll before the
1829 * failed one. Unrolling is rather difficult with the
1830 * current structure and we can leave them lying
1831 * around with no problems, so we don't care.
1832 * As these might reference our wm, we don't free it.
1833 */
1834 goto done;
1835 }
1836 }
1837
1838 /* send DLL load event */
1839
1840 SERVER_START_REQ( load_dll )
1841 {
1842 req->mapping = wine_server_obj_handle( mapping );
1843 req->base = wine_server_client_ptr( module );
1844 req->size = nt->OptionalHeader.SizeOfImage;
1845 req->dbg_offset = nt->FileHeader.PointerToSymbolTable;
1846 req->dbg_size = nt->FileHeader.NumberOfSymbols;
1847 req->name = wine_server_client_ptr( &wm->ldr.FullDllName.Buffer );
1848 wine_server_add_data( req, wm->ldr.FullDllName.Buffer, wm->ldr.FullDllName.Length );
1849 wine_server_call( req );
1850 }
1851 SERVER_END_REQ;
1852
1853 if ((wm->ldr.Flags & LDR_IMAGE_IS_DLL) && TRACE_ON(snoop)) SNOOP_SetupDLL( module );
1854
1855 TRACE_(loaddll)( "Loaded %s at %p: native\n", debugstr_w(wm->ldr.FullDllName.Buffer), module );
1856
1857 wm->ldr.LoadCount = 1;
1858 *pwm = wm;
1859 status = STATUS_SUCCESS;
1860 done:
1861 NtClose( mapping );
1862 return status;
1863 }
1864
1865
1866 /***********************************************************************
1867 * load_builtin_dll
1868 */
1869 static NTSTATUS load_builtin_dll( LPCWSTR load_path, LPCWSTR path, HANDLE file,
1870 DWORD flags, WINE_MODREF** pwm )
1871 {
1872 char error[256], dllname[MAX_PATH];
1873 const WCHAR *name, *p;
1874 DWORD len, i;
1875 void *handle;
1876 struct builtin_load_info info, *prev_info;
1877
1878 /* Fix the name in case we have a full path and extension */
1879 name = path;
1880 if ((p = strrchrW( name, '\\' ))) name = p + 1;
1881 if ((p = strrchrW( name, '/' ))) name = p + 1;
1882
1883 /* load_library will modify info.status. Note also that load_library can be
1884 * called several times, if the .so file we're loading has dependencies.
1885 * info.status will gather all the errors we may get while loading all these
1886 * libraries
1887 */
1888 info.load_path = load_path;
1889 info.filename = NULL;
1890 info.status = STATUS_SUCCESS;
1891 info.wm = NULL;
1892
1893 if (file) /* we have a real file, try to load it */
1894 {
1895 UNICODE_STRING nt_name;
1896 ANSI_STRING unix_name;
1897
1898 TRACE("Trying built-in %s\n", debugstr_w(path));
1899
1900 if (!RtlDosPathNameToNtPathName_U( path, &nt_name, NULL, NULL ))
1901 return STATUS_DLL_NOT_FOUND;
1902
1903 if (wine_nt_to_unix_file_name( &nt_name, &unix_name, FILE_OPEN, FALSE ))
1904 {
1905 RtlFreeUnicodeString( &nt_name );
1906 return STATUS_DLL_NOT_FOUND;
1907 }
1908 prev_info = builtin_load_info;
1909 info.filename = nt_name.Buffer + 4; /* skip \??\ */
1910 builtin_load_info = &info;
1911 handle = wine_dlopen( unix_name.Buffer, RTLD_NOW, error, sizeof(error) );
1912 builtin_load_info = prev_info;
1913 RtlFreeUnicodeString( &nt_name );
1914 RtlFreeHeap( GetProcessHeap(), 0, unix_name.Buffer );
1915 if (!handle)
1916 {
1917 WARN( "failed to load .so lib for builtin %s: %s\n", debugstr_w(path), error );
1918 return STATUS_INVALID_IMAGE_FORMAT;
1919 }
1920 }
1921 else
1922 {
1923 int file_exists;
1924
1925 TRACE("Trying built-in %s\n", debugstr_w(name));
1926
1927 /* we don't want to depend on the current codepage here */
1928 len = strlenW( name ) + 1;
1929 if (len >= sizeof(dllname)) return STATUS_NAME_TOO_LONG;
1930 for (i = 0; i < len; i++)
1931 {
1932 if (name[i] > 127) return STATUS_DLL_NOT_FOUND;
1933 dllname[i] = (char)name[i];
1934 if (dllname[i] >= 'A' && dllname[i] <= 'Z') dllname[i] += 'a' - 'A';
1935 }
1936
1937 prev_info = builtin_load_info;
1938 builtin_load_info = &info;
1939 handle = wine_dll_load( dllname, error, sizeof(error), &file_exists );
1940 builtin_load_info = prev_info;
1941 if (!handle)
1942 {
1943 if (!file_exists)
1944 {
1945 /* The file does not exist -> WARN() */
1946 WARN("cannot open .so lib for builtin %s: %s\n", debugstr_w(name), error);
1947 return STATUS_DLL_NOT_FOUND;
1948 }
1949 /* ERR() for all other errors (missing functions, ...) */
1950 ERR("failed to load .so lib for builtin %s: %s\n", debugstr_w(name), error );
1951 return STATUS_PROCEDURE_NOT_FOUND;
1952 }
1953 }
1954
1955 if (info.status != STATUS_SUCCESS)
1956 {
1957 wine_dll_unload( handle );
1958 return info.status;
1959 }
1960
1961 if (!info.wm)
1962 {
1963 PLIST_ENTRY mark, entry;
1964
1965 /* The constructor wasn't called, this means the .so is already
1966 * loaded under a different name. Try to find the wm for it. */
1967
1968 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
1969 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1970 {
1971 LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
1972 if (mod->Flags & LDR_WINE_INTERNAL && mod->SectionHandle == handle)
1973 {
1974 info.wm = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
1975 TRACE( "Found %s at %p for builtin %s\n",
1976 debugstr_w(info.wm->ldr.FullDllName.Buffer), info.wm->ldr.BaseAddress, debugstr_w(path) );
1977 break;
1978 }
1979 }
1980 wine_dll_unload( handle ); /* release the libdl refcount */
1981 if (!info.wm) return STATUS_INVALID_IMAGE_FORMAT;
1982 if (info.wm->ldr.LoadCount != -1) info.wm->ldr.LoadCount++;
1983 }
1984 else
1985 {
1986 TRACE_(loaddll)( "Loaded %s at %p: builtin\n", debugstr_w(info.wm->ldr.FullDllName.Buffer), info.wm->ldr.BaseAddress );
1987 info.wm->ldr.LoadCount = 1;
1988 info.wm->ldr.SectionHandle = handle;
1989 }
1990
1991 *pwm = info.wm;
1992 return STATUS_SUCCESS;
1993 }
1994
1995
1996 /***********************************************************************
1997 * find_actctx_dll
1998 *
1999 * Find the full path (if any) of the dll from the activation context.
2000 */
2001 static NTSTATUS find_actctx_dll( LPCWSTR libname, LPWSTR *fullname )
2002 {
2003 static const WCHAR winsxsW[] = {'\\','w','i','n','s','x','s','\\'};
2004 static const WCHAR dotManifestW[] = {'.','m','a','n','i','f','e','s','t',0};
2005
2006 ACTIVATION_CONTEXT_ASSEMBLY_DETAILED_INFORMATION *info;
2007 ACTCTX_SECTION_KEYED_DATA data;
2008 UNICODE_STRING nameW;
2009 NTSTATUS status;
2010 SIZE_T needed, size = 1024;
2011 WCHAR *p;
2012
2013 RtlInitUnicodeString( &nameW, libname );
2014 data.cbSize = sizeof(data);
2015 status = RtlFindActivationContextSectionString( FIND_ACTCTX_SECTION_KEY_RETURN_HACTCTX, NULL,
2016 ACTIVATION_CONTEXT_SECTION_DLL_REDIRECTION,
2017 &nameW, &data );
2018 if (status != STATUS_SUCCESS) return status;
2019
2020 for (;;)
2021 {
2022 if (!(info = RtlAllocateHeap( GetProcessHeap(), 0, size )))
2023 {
2024 status = STATUS_NO_MEMORY;
2025 goto done;
2026 }
2027 status = RtlQueryInformationActivationContext( 0, data.hActCtx, &data.ulAssemblyRosterIndex,
2028 AssemblyDetailedInformationInActivationContext,
2029 info, size, &needed );
2030 if (status == STATUS_SUCCESS) break;
2031 if (status != STATUS_BUFFER_TOO_SMALL) goto done;
2032 RtlFreeHeap( GetProcessHeap(), 0, info );
2033 size = needed;
2034 /* restart with larger buffer */
2035 }
2036
2037 if (!info->lpAssemblyManifestPath || !info->lpAssemblyDirectoryName)
2038 {
2039 status = STATUS_SXS_KEY_NOT_FOUND;
2040 goto done;
2041 }
2042
2043 if ((p = strrchrW( info->lpAssemblyManifestPath, '\\' )))
2044 {
2045 DWORD dirlen = info->ulAssemblyDirectoryNameLength / sizeof(WCHAR);
2046
2047 p++;
2048 if (strncmpiW( p, info->lpAssemblyDirectoryName, dirlen ) || strcmpiW( p + dirlen, dotManifestW ))
2049 {
2050 /* manifest name does not match directory name, so it's not a global
2051 * windows/winsxs manifest; use the manifest directory name instead */
2052 dirlen = p - info->lpAssemblyManifestPath;
2053 needed = (dirlen + 1) * sizeof(WCHAR) + nameW.Length;
2054 if (!(*fullname = p = RtlAllocateHeap( GetProcessHeap(), 0, needed )))
2055 {
2056 status = STATUS_NO_MEMORY;
2057 goto done;
2058 }
2059 memcpy( p, info->lpAssemblyManifestPath, dirlen * sizeof(WCHAR) );
2060 p += dirlen;
2061 strcpyW( p, libname );
2062 goto done;
2063 }
2064 }
2065
2066 needed = (strlenW(user_shared_data->NtSystemRoot) * sizeof(WCHAR) +
2067 sizeof(winsxsW) + info->ulAssemblyDirectoryNameLength + nameW.Length + 2*sizeof(WCHAR));
2068
2069 if (!(*fullname = p = RtlAllocateHeap( GetProcessHeap(), 0, needed )))
2070 {
2071 status = STATUS_NO_MEMORY;
2072 goto done;
2073 }
2074 strcpyW( p, user_shared_data->NtSystemRoot );
2075 p += strlenW(p);
2076 memcpy( p, winsxsW, sizeof(winsxsW) );
2077 p += sizeof(winsxsW) / sizeof(WCHAR);
2078 memcpy( p, info->lpAssemblyDirectoryName, info->ulAssemblyDirectoryNameLength );
2079 p += info->ulAssemblyDirectoryNameLength / sizeof(WCHAR);
2080 *p++ = '\\';
2081 strcpyW( p, libname );
2082 done:
2083 RtlFreeHeap( GetProcessHeap(), 0, info );
2084 RtlReleaseActivationContext( data.hActCtx );
2085 return status;
2086 }
2087
2088
2089 /***********************************************************************
2090 * find_dll_file
2091 *
2092 * Find the file (or already loaded module) for a given dll name.
2093 */
2094 static NTSTATUS find_dll_file( const WCHAR *load_path, const WCHAR *libname,
2095 WCHAR *filename, ULONG *size, WINE_MODREF **pwm, HANDLE *handle )
2096 {
2097 OBJECT_ATTRIBUTES attr;
2098 IO_STATUS_BLOCK io;
2099 UNICODE_STRING nt_name;
2100 WCHAR *file_part, *ext, *dllname;
2101 ULONG len;
2102
2103 /* first append .dll if needed */
2104
2105 dllname = NULL;
2106 if (!(ext = strrchrW( libname, '.')) || strchrW( ext, '/' ) || strchrW( ext, '\\'))
2107 {
2108 if (!(dllname = RtlAllocateHeap( GetProcessHeap(), 0,
2109 (strlenW(libname) * sizeof(WCHAR)) + sizeof(dllW) )))
2110 return STATUS_NO_MEMORY;
2111 strcpyW( dllname, libname );
2112 strcatW( dllname, dllW );
2113 libname = dllname;
2114 }
2115
2116 nt_name.Buffer = NULL;
2117
2118 if (!contains_path( libname ))
2119 {
2120 NTSTATUS status;
2121 WCHAR *fullname = NULL;
2122
2123 if ((*pwm = find_basename_module( libname )) != NULL) goto found;
2124
2125 status = find_actctx_dll( libname, &fullname );
2126 if (status == STATUS_SUCCESS)
2127 {
2128 TRACE ("found %s for %s\n", debugstr_w(fullname), debugstr_w(libname) );
2129 RtlFreeHeap( GetProcessHeap(), 0, dllname );
2130 libname = dllname = fullname;
2131 }
2132 else if (status != STATUS_SXS_KEY_NOT_FOUND)
2133 {
2134 RtlFreeHeap( GetProcessHeap(), 0, dllname );
2135 return status;
2136 }
2137 }
2138
2139 if (RtlDetermineDosPathNameType_U( libname ) == RELATIVE_PATH)
2140 {
2141 /* we need to search for it */
2142 len = RtlDosSearchPath_U( load_path, libname, NULL, *size, filename, &file_part );
2143 if (len)
2144 {
2145 if (len >= *size) goto overflow;
2146 if ((*pwm = find_fullname_module( filename )) || !handle) goto found;
2147
2148 if (!RtlDosPathNameToNtPathName_U( filename, &nt_name, NULL, NULL ))
2149 {
2150 RtlFreeHeap( GetProcessHeap(), 0, dllname );
2151 return STATUS_NO_MEMORY;
2152 }
2153 attr.Length = sizeof(attr);
2154 attr.RootDirectory = 0;
2155 attr.Attributes = OBJ_CASE_INSENSITIVE;
2156 attr.ObjectName = &nt_name;
2157 attr.SecurityDescriptor = NULL;
2158 attr.SecurityQualityOfService = NULL;
2159 if (NtOpenFile( handle, GENERIC_READ|SYNCHRONIZE, &attr, &io, FILE_SHARE_READ|FILE_SHARE_DELETE, FILE_SYNCHRONOUS_IO_NONALERT|FILE_NON_DIRECTORY_FILE )) *handle = 0;
2160 goto found;
2161 }
2162
2163 /* not found */
2164
2165 if (!contains_path( libname ))
2166 {
2167 /* if libname doesn't contain a path at all, we simply return the name as is,
2168 * to be loaded as builtin */
2169 len = strlenW(libname) * sizeof(WCHAR);
2170 if (len >= *size) goto overflow;
2171 strcpyW( filename, libname );
2172 goto found;
2173 }
2174 }
2175
2176 /* absolute path name, or relative path name but not found above */
2177
2178 if (!RtlDosPathNameToNtPathName_U( libname, &nt_name, &file_part, NULL ))
2179 {
2180 RtlFreeHeap( GetProcessHeap(), 0, dllname );
2181 return STATUS_NO_MEMORY;
2182 }
2183 len = nt_name.Length - 4*sizeof(WCHAR); /* for \??\ prefix */
2184 if (len >= *size) goto overflow;
2185 memcpy( filename, nt_name.Buffer + 4, len + sizeof(WCHAR) );
2186 if (!(*pwm = find_fullname_module( filename )) && handle)
2187 {
2188 attr.Length = sizeof(attr);
2189 attr.RootDirectory = 0;
2190 attr.Attributes = OBJ_CASE_INSENSITIVE;
2191 attr.ObjectName = &nt_name;
2192 attr.SecurityDescriptor = NULL;
2193 attr.SecurityQualityOfService = NULL;
2194 if (NtOpenFile( handle, GENERIC_READ|SYNCHRONIZE, &attr, &io, FILE_SHARE_READ|FILE_SHARE_DELETE, FILE_SYNCHRONOUS_IO_NONALERT|FILE_NON_DIRECTORY_FILE )) *handle = 0;
2195 }
2196 found:
2197 RtlFreeUnicodeString( &nt_name );
2198 RtlFreeHeap( GetProcessHeap(), 0, dllname );
2199 return STATUS_SUCCESS;
2200
2201 overflow:
2202 RtlFreeUnicodeString( &nt_name );
2203 RtlFreeHeap( GetProcessHeap(), 0, dllname );
2204 *size = len + sizeof(WCHAR);
2205 return STATUS_BUFFER_TOO_SMALL;
2206 }
2207
2208
2209 /***********************************************************************
2210 * load_dll (internal)
2211 *
2212 * Load a PE style module according to the load order.
2213 * The loader_section must be locked while calling this function.
2214 */
2215 static NTSTATUS load_dll( LPCWSTR load_path, LPCWSTR libname, DWORD flags, WINE_MODREF** pwm )
2216 {
2217 enum loadorder loadorder;
2218 WCHAR buffer[64];
2219 WCHAR *filename;
2220 ULONG size;
2221 WINE_MODREF *main_exe;
2222 HANDLE handle = 0;
2223 NTSTATUS nts;
2224
2225 TRACE( "looking for %s in %s\n", debugstr_w(libname), debugstr_w(load_path) );
2226
2227 *pwm = NULL;
2228 filename = buffer;
2229 size = sizeof(buffer);
2230 for (;;)
2231 {
2232 nts = find_dll_file( load_path, libname, filename, &size, pwm, &handle );
2233 if (nts == STATUS_SUCCESS) break;
2234 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
2235 if (nts != STATUS_BUFFER_TOO_SMALL) return nts;
2236 /* grow the buffer and retry */
2237 if (!(filename = RtlAllocateHeap( GetProcessHeap(), 0, size ))) return STATUS_NO_MEMORY;
2238 }
2239
2240 if (*pwm) /* found already loaded module */
2241 {
2242 if ((*pwm)->ldr.LoadCount != -1) (*pwm)->ldr.LoadCount++;
2243
2244 TRACE("Found %s for %s at %p, count=%d\n",
2245 debugstr_w((*pwm)->ldr.FullDllName.Buffer), debugstr_w(libname),
2246 (*pwm)->ldr.BaseAddress, (*pwm)->ldr.LoadCount);
2247 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
2248 return STATUS_SUCCESS;
2249 }
2250
2251 main_exe = get_modref( NtCurrentTeb()->Peb->ImageBaseAddress );
2252 loadorder = get_load_order( main_exe ? main_exe->ldr.BaseDllName.Buffer : NULL, filename );
2253
2254 if (handle && is_fake_dll( handle ))
2255 {
2256 TRACE( "%s is a fake Wine dll\n", debugstr_w(filename) );
2257 NtClose( handle );
2258 handle = 0;
2259 }
2260
2261 switch(loadorder)
2262 {
2263 case LO_INVALID:
2264 nts = STATUS_NO_MEMORY;
2265 break;
2266 case LO_DISABLED:
2267 nts = STATUS_DLL_NOT_FOUND;
2268 break;
2269 case LO_NATIVE:
2270 case LO_NATIVE_BUILTIN:
2271 if (!handle) nts = STATUS_DLL_NOT_FOUND;
2272 else
2273 {
2274 nts = load_native_dll( load_path, filename, handle, flags, pwm );
2275 if (nts == STATUS_INVALID_IMAGE_NOT_MZ)
2276 /* not in PE format, maybe it's a builtin */
2277 nts = load_builtin_dll( load_path, filename, handle, flags, pwm );
2278 }
2279 if (nts == STATUS_DLL_NOT_FOUND && loadorder == LO_NATIVE_BUILTIN)
2280 nts = load_builtin_dll( load_path, filename, 0, flags, pwm );
2281 break;
2282 case LO_BUILTIN:
2283 case LO_BUILTIN_NATIVE:
2284 case LO_DEFAULT: /* default is builtin,native */
2285 nts = load_builtin_dll( load_path, filename, handle, flags, pwm );
2286 if (!handle) break; /* nothing else we can try */
2287 /* file is not a builtin library, try without using the specified file */
2288 if (nts != STATUS_SUCCESS)
2289 nts = load_builtin_dll( load_path, filename, 0, flags, pwm );
2290 if (nts == STATUS_SUCCESS && loadorder == LO_DEFAULT &&
2291 (MODULE_InitDLL( *pwm, DLL_WINE_PREATTACH, NULL ) != STATUS_SUCCESS))
2292 {
2293 /* stub-only dll, try native */
2294 TRACE( "%s pre-attach returned FALSE, preferring native\n", debugstr_w(filename) );
2295 LdrUnloadDll( (*pwm)->ldr.BaseAddress );
2296 nts = STATUS_DLL_NOT_FOUND;
2297 }
2298 if (nts == STATUS_DLL_NOT_FOUND && loadorder != LO_BUILTIN)
2299 nts = load_native_dll( load_path, filename, handle, flags, pwm );
2300 break;
2301 }
2302
2303 if (nts == STATUS_SUCCESS)
2304 {
2305 /* Initialize DLL just loaded */
2306 TRACE("Loaded module %s (%s) at %p\n", debugstr_w(filename),
2307 ((*pwm)->ldr.Flags & LDR_WINE_INTERNAL) ? "builtin" : "native",
2308 (*pwm)->ldr.BaseAddress);
2309 if (handle) NtClose( handle );
2310 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
2311 return nts;
2312 }
2313
2314 WARN("Failed to load module %s; status=%x\n", debugstr_w(libname), nts);
2315 if (handle) NtClose( handle );
2316 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
2317 return nts;
2318 }
2319
2320 /******************************************************************
2321 * LdrLoadDll (NTDLL.@)
2322 */
2323 NTSTATUS WINAPI DECLSPEC_HOTPATCH LdrLoadDll(LPCWSTR path_name, DWORD flags,
2324 const UNICODE_STRING *libname, HMODULE* hModule)
2325 {
2326 WINE_MODREF *wm;
2327 NTSTATUS nts;
2328
2329 RtlEnterCriticalSection( &loader_section );
2330
2331 if (!path_name) path_name = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
2332 nts = load_dll( path_name, libname->Buffer, flags, &wm );
2333
2334 if (nts == STATUS_SUCCESS && !(wm->ldr.Flags & LDR_DONT_RESOLVE_REFS))
2335 {
2336 nts = process_attach( wm, NULL );
2337 if (nts != STATUS_SUCCESS)
2338 {
2339 LdrUnloadDll(wm->ldr.BaseAddress);
2340 wm = NULL;
2341 }
2342 }
2343 *hModule = (wm) ? wm->ldr.BaseAddress : NULL;
2344
2345 RtlLeaveCriticalSection( &loader_section );
2346 return nts;
2347 }
2348
2349
2350 /******************************************************************
2351 * LdrGetDllHandle (NTDLL.@)
2352 */
2353 NTSTATUS WINAPI LdrGetDllHandle( LPCWSTR load_path, ULONG flags, const UNICODE_STRING *name, HMODULE *base )
2354 {
2355 NTSTATUS status;
2356 WCHAR buffer[128];
2357 WCHAR *filename;
2358 ULONG size;
2359 WINE_MODREF *wm;
2360
2361 RtlEnterCriticalSection( &loader_section );
2362
2363 if (!load_path) load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
2364
2365 filename = buffer;
2366 size = sizeof(buffer);
2367 for (;;)
2368 {
2369 status = find_dll_file( load_path, name->Buffer, filename, &size, &wm, NULL );
2370 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
2371 if (status != STATUS_BUFFER_TOO_SMALL) break;
2372 /* grow the buffer and retry */
2373 if (!(filename = RtlAllocateHeap( GetProcessHeap(), 0, size )))
2374 {
2375 status = STATUS_NO_MEMORY;
2376 break;
2377 }
2378 }
2379
2380 if (status == STATUS_SUCCESS)
2381 {
2382 if (wm) *base = wm->ldr.BaseAddress;
2383 else status = STATUS_DLL_NOT_FOUND;
2384 }
2385
2386 RtlLeaveCriticalSection( &loader_section );
2387 TRACE( "%s -> %p (load path %s)\n", debugstr_us(name), status ? NULL : *base, debugstr_w(load_path) );
2388 return status;
2389 }
2390
2391
2392 /******************************************************************
2393 * LdrAddRefDll (NTDLL.@)
2394 */
2395 NTSTATUS WINAPI LdrAddRefDll( ULONG flags, HMODULE module )
2396 {
2397 NTSTATUS ret = STATUS_SUCCESS;
2398 WINE_MODREF *wm;
2399
2400 if (flags & ~LDR_ADDREF_DLL_PIN) FIXME( "%p flags %x not implemented\n", module, flags );
2401
2402 RtlEnterCriticalSection( &loader_section );
2403
2404 if ((wm = get_modref( module )))
2405 {
2406 if (flags & LDR_ADDREF_DLL_PIN)
2407 wm->ldr.LoadCount = -1;
2408 else
2409 if (wm->ldr.LoadCount != -1) wm->ldr.LoadCount++;
2410 TRACE( "(%s) ldr.LoadCount: %d\n", debugstr_w(wm->ldr.BaseDllName.Buffer), wm->ldr.LoadCount );
2411 }
2412 else ret = STATUS_INVALID_PARAMETER;
2413
2414 RtlLeaveCriticalSection( &loader_section );
2415 return ret;
2416 }
2417
2418
2419 /***********************************************************************
2420 * LdrProcessRelocationBlock (NTDLL.@)
2421 *
2422 * Apply relocations to a given page of a mapped PE image.
2423 */
2424 IMAGE_BASE_RELOCATION * WINAPI LdrProcessRelocationBlock( void *page, UINT count,
2425 USHORT *relocs, INT_PTR delta )
2426 {
2427 while (count--)
2428 {
2429 USHORT offset = *relocs & 0xfff;
2430 int type = *relocs >> 12;
2431 switch(type)
2432 {
2433 case IMAGE_REL_BASED_ABSOLUTE:
2434 break;
2435 case IMAGE_REL_BASED_HIGH:
2436 *(short *)((char *)page + offset) += HIWORD(delta);
2437 break;
2438 case IMAGE_REL_BASED_LOW:
2439 *(short *)((char *)page + offset) += LOWORD(delta);
2440 break;
2441 case IMAGE_REL_BASED_HIGHLOW:
2442 *(int *)((char *)page + offset) += delta;
2443 break;
2444 #ifdef __x86_64__
2445 case IMAGE_REL_BASED_DIR64:
2446 *(INT_PTR *)((char *)page + offset) += delta;
2447 break;
2448 #elif defined(__arm__)
2449 case IMAGE_REL_BASED_THUMB_MOV32:
2450 {
2451 DWORD inst = *(INT_PTR *)((char *)page + offset);
2452 DWORD imm16 = ((inst << 1) & 0x0800) + ((inst << 12) & 0xf000) +
2453 ((inst >> 20) & 0x0700) + ((inst >> 16) & 0x00ff);
2454 DWORD hi_delta;
2455
2456 if ((inst & 0x8000fbf0) != 0x0000f240)
2457 ERR("wrong Thumb2 instruction %08x, expected MOVW\n", inst);
2458
2459 imm16 += LOWORD(delta);
2460 hi_delta = HIWORD(delta) + HIWORD(imm16);
2461 *(INT_PTR *)((char *)page + offset) = (inst & 0x8f00fbf0) + ((imm16 >> 1) & 0x0400) +
2462 ((imm16 >> 12) & 0x000f) +
2463 ((imm16 << 20) & 0x70000000) +
2464 ((imm16 << 16) & 0xff0000);
2465
2466 if (hi_delta != 0)
2467 {
2468 inst = *(INT_PTR *)((char *)page + offset + 4);
2469 imm16 = ((inst << 1) & 0x0800) + ((inst << 12) & 0xf000) +
2470 ((inst >> 20) & 0x0700) + ((inst >> 16) & 0x00ff);
2471
2472 if ((inst & 0x8000fbf0) != 0x0000f2c0)
2473 ERR("wrong Thumb2 instruction %08x, expected MOVT\n", inst);
2474
2475 imm16 += hi_delta;
2476 if (imm16 > 0xffff)
2477 ERR("resulting immediate value won't fit: %08x\n", imm16);
2478 *(INT_PTR *)((char *)page + offset + 4) = (inst & 0x8f00fbf0) +
2479 ((imm16 >> 1) & 0x0400) +
2480 ((imm16 >> 12) & 0x000f) +
2481 ((imm16 << 20) & 0x70000000) +
2482 ((imm16 << 16) & 0xff0000);
2483 }
2484 }
2485 break;
2486 #endif
2487 default:
2488 FIXME("Unknown/unsupported fixup type %x.\n", type);
2489 return NULL;
2490 }
2491 relocs++;
2492 }
2493 return (IMAGE_BASE_RELOCATION *)relocs; /* return address of next block */
2494 }
2495
2496
2497 /******************************************************************
2498 * LdrQueryProcessModuleInformation
2499 *
2500 */
2501 NTSTATUS WINAPI LdrQueryProcessModuleInformation(PSYSTEM_MODULE_INFORMATION smi,
2502 ULONG buf_size, ULONG* req_size)
2503 {
2504 SYSTEM_MODULE* sm = &smi->Modules[0];
2505 ULONG size = sizeof(ULONG);
2506 NTSTATUS nts = STATUS_SUCCESS;
2507 ANSI_STRING str;
2508 char* ptr;
2509 PLIST_ENTRY mark, entry;
2510 PLDR_MODULE mod;
2511 WORD id = 0;
2512
2513 smi->ModulesCount = 0;
2514
2515 RtlEnterCriticalSection( &loader_section );
2516 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
2517 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
2518 {
2519 mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
2520 size += sizeof(*sm);
2521 if (size <= buf_size)
2522 {
2523 sm->Reserved1 = 0; /* FIXME */
2524 sm->Reserved2 = 0; /* FIXME */
2525 sm->ImageBaseAddress = mod->BaseAddress;
2526 sm->ImageSize = mod->SizeOfImage;
2527 sm->Flags = mod->Flags;
2528 sm->Id = id++;
2529 sm->Rank = 0; /* FIXME */
2530 sm->Unknown = 0; /* FIXME */
2531 str.Length = 0;
2532 str.MaximumLength = MAXIMUM_FILENAME_LENGTH;
2533 str.Buffer = (char*)sm->Name;
2534 RtlUnicodeStringToAnsiString(&str, &mod->FullDllName, FALSE);
2535 ptr = strrchr(str.Buffer, '\\');
2536 sm->NameOffset = (ptr != NULL) ? (ptr - str.Buffer + 1) : 0;
2537
2538 smi->ModulesCount++;
2539 sm++;
2540 }
2541 else nts = STATUS_INFO_LENGTH_MISMATCH;
2542 }
2543 RtlLeaveCriticalSection( &loader_section );
2544
2545 if (req_size) *req_size = size;
2546
2547 return nts;
2548 }
2549
2550
2551 static NTSTATUS query_dword_option( HANDLE hkey, LPCWSTR name, ULONG *value )
2552 {
2553 NTSTATUS status;
2554 UNICODE_STRING str;
2555 ULONG size;
2556 WCHAR buffer[64];
2557 KEY_VALUE_PARTIAL_INFORMATION *info = (KEY_VALUE_PARTIAL_INFORMATION *)buffer;
2558
2559 RtlInitUnicodeString( &str, name );
2560
2561 size = sizeof(buffer) - sizeof(WCHAR);
2562 if ((status = NtQueryValueKey( hkey, &str, KeyValuePartialInformation, buffer, size, &size )))
2563 return status;
2564
2565 if (info->Type != REG_DWORD)
2566 {
2567 buffer[size / sizeof(WCHAR)] = 0;
2568 *value = strtoulW( (WCHAR *)info->Data, 0, 16 );
2569 }
2570 else memcpy( value, info->Data, sizeof(*value) );
2571 return status;
2572 }
2573
2574 static NTSTATUS query_string_option( HANDLE hkey, LPCWSTR name, ULONG type,
2575 void *data, ULONG in_size, ULONG *out_size )
2576 {
2577 NTSTATUS status;
2578 UNICODE_STRING str;
2579 ULONG size;
2580 char *buffer;
2581 KEY_VALUE_PARTIAL_INFORMATION *info;
2582 static const int info_size = FIELD_OFFSET( KEY_VALUE_PARTIAL_INFORMATION, Data );
2583
2584 RtlInitUnicodeString( &str, name );
2585
2586 size = info_size + in_size;
2587 if (!(buffer = RtlAllocateHeap( GetProcessHeap(), 0, size ))) return STATUS_NO_MEMORY;
2588 info = (KEY_VALUE_PARTIAL_INFORMATION *)buffer;
2589 status = NtQueryValueKey( hkey, &str, KeyValuePartialInformation, buffer, size, &size );
2590 if (!status || status == STATUS_BUFFER_OVERFLOW)
2591 {
2592 if (out_size) *out_size = info->DataLength;
2593 if (data && !status) memcpy( data, info->Data, info->DataLength );
2594 }
2595 RtlFreeHeap( GetProcessHeap(), 0, buffer );
2596 return status;
2597 }
2598
2599
2600 /******************************************************************
2601 * LdrQueryImageFileExecutionOptions (NTDLL.@)
2602 */
2603 NTSTATUS WINAPI LdrQueryImageFileExecutionOptions( const UNICODE_STRING *key, LPCWSTR value, ULONG type,
2604 void *data, ULONG in_size, ULONG *out_size )
2605 {
2606 static const WCHAR optionsW[] = {'M','a','c','h','i','n','e','\\',
2607 'S','o','f','t','w','a','r','e','\\',
2608 'M','i','c','r','o','s','o','f','t','\\',
2609 'W','i','n','d','o','w','s',' ','N','T','\\',
2610 'C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',
2611 'I','m','a','g','e',' ','F','i','l','e',' ',
2612 'E','x','e','c','u','t','i','o','n',' ','O','p','t','i','o','n','s','\\'};
2613 WCHAR path[MAX_PATH + sizeof(optionsW)/sizeof(WCHAR)];
2614 OBJECT_ATTRIBUTES attr;
2615 UNICODE_STRING name_str;
2616 HANDLE hkey;
2617 NTSTATUS status;
2618 ULONG len;
2619 WCHAR *p;
2620
2621 attr.Length = sizeof(attr);
2622 attr.RootDirectory = 0;
2623 attr.ObjectName = &name_str;
2624 attr.Attributes = OBJ_CASE_INSENSITIVE;
2625 attr.SecurityDescriptor = NULL;
2626 attr.SecurityQualityOfService = NULL;
2627
2628 if ((p = memrchrW( key->Buffer, '\\', key->Length / sizeof(WCHAR) ))) p++;
2629 else p = key->Buffer;
2630 len = key->Length - (p - key->Buffer) * sizeof(WCHAR);
2631 name_str.Buffer = path;
2632 name_str.Length = sizeof(optionsW) + len;
2633 name_str.MaximumLength = name_str.Length;
2634 memcpy( path, optionsW, sizeof(optionsW) );
2635 memcpy( path + sizeof(optionsW)/sizeof(WCHAR), p, len );
2636 if ((status = NtOpenKey( &hkey, KEY_QUERY_VALUE, &attr ))) return status;
2637
2638 if (type == REG_DWORD)
2639 {
2640 if (out_size) *out_size = sizeof(ULONG);
2641 if (in_size >= sizeof(ULONG)) status = query_dword_option( hkey, value, data );
2642 else status = STATUS_BUFFER_OVERFLOW;
2643 }
2644 else status = query_string_option( hkey, value, type, data, in_size, out_size );
2645
2646 NtClose( hkey );
2647 return status;
2648 }
2649
2650
2651 /******************************************************************
2652 * RtlDllShutdownInProgress (NTDLL.@)
2653 */
2654 BOOLEAN WINAPI RtlDllShutdownInProgress(void)
2655 {
2656 return process_detaching;
2657 }
2658
2659 /****************************************************************************
2660 * LdrResolveDelayLoadedAPI (NTDLL.@)
2661 */
2662 void* WINAPI LdrResolveDelayLoadedAPI( void* base, const IMAGE_DELAYLOAD_DESCRIPTOR* desc,
2663 PDELAYLOAD_FAILURE_DLL_CALLBACK dllhook, void* syshook,
2664 IMAGE_THUNK_DATA* addr, ULONG flags )
2665 {
2666 IMAGE_THUNK_DATA *pIAT, *pINT;
2667 DELAYLOAD_INFO delayinfo;
2668 UNICODE_STRING mod;
2669 const CHAR* name;
2670 HMODULE *phmod;
2671 NTSTATUS nts;
2672 FARPROC fp;
2673 DWORD id;
2674
2675 FIXME("(%p, %p, %p, %p, %p, 0x%08x), partial stub\n", base, desc, dllhook, syshook, addr, flags);
2676
2677 phmod = get_rva(base, desc->ModuleHandleRVA);
2678 pIAT = get_rva(base, desc->ImportAddressTableRVA);
2679 pINT = get_rva(base, desc->ImportNameTableRVA);
2680 name = get_rva(base, desc->DllNameRVA);
2681 id = addr - pIAT;
2682
2683 if (!*phmod)
2684 {
2685 if (!RtlCreateUnicodeStringFromAsciiz(&mod, name))
2686 {
2687 nts = STATUS_NO_MEMORY;
2688 goto fail;
2689 }
2690 nts = LdrLoadDll(NULL, 0, &mod, phmod);
2691 RtlFreeUnicodeString(&mod);
2692 if (nts) goto fail;
2693 }
2694
2695 if (IMAGE_SNAP_BY_ORDINAL(pINT[id].u1.Ordinal))
2696 nts = LdrGetProcedureAddress(*phmod, NULL, LOWORD(pINT[id].u1.Ordinal), (void**)&fp);
2697 else
2698 {
2699 const IMAGE_IMPORT_BY_NAME* iibn = get_rva(base, pINT[id].u1.AddressOfData);
2700 ANSI_STRING fnc;
2701
2702 RtlInitAnsiString(&fnc, (char*)iibn->Name);
2703 nts = LdrGetProcedureAddress(*phmod, &fnc, 0, (void**)&fp);
2704 }
2705 if (!nts)
2706 {
2707 pIAT[id].u1.Function = (ULONG_PTR)fp;
2708 return fp;
2709 }
2710
2711 fail:
2712 delayinfo.Size = sizeof(delayinfo);
2713 delayinfo.DelayloadDescriptor = desc;
2714 delayinfo.ThunkAddress = addr;
2715 delayinfo.TargetDllName = name;
2716 delayinfo.TargetApiDescriptor.ImportDescribedByName = !IMAGE_SNAP_BY_ORDINAL(pINT[id].u1.Ordinal);
2717 delayinfo.TargetApiDescriptor.Description.Ordinal = LOWORD(pINT[id].u1.Ordinal);
2718 delayinfo.TargetModuleBase = *phmod;
2719 delayinfo.Unused = NULL;
2720 delayinfo.LastError = nts;
2721 return dllhook(4, &delayinfo);
2722 }
2723
2724 /******************************************************************
2725 * LdrShutdownProcess (NTDLL.@)
2726 *
2727 */
2728 void WINAPI LdrShutdownProcess(void)
2729 {
2730 TRACE("()\n");
2731 process_detaching = TRUE;
2732 process_detach();
2733 }
2734
2735
2736 /******************************************************************
2737 * RtlExitUserProcess (NTDLL.@)
2738 */
2739 void WINAPI RtlExitUserProcess( DWORD status )
2740 {
2741 RtlEnterCriticalSection( &loader_section );
2742 RtlAcquirePebLock();
2743 NtTerminateProcess( 0, status );
2744 LdrShutdownProcess();
2745 NtTerminateProcess( GetCurrentProcess(), status );
2746 exit( status );
2747 }
2748
2749 /******************************************************************
2750 * LdrShutdownThread (NTDLL.@)
2751 *
2752 */
2753 void WINAPI LdrShutdownThread(void)
2754 {
2755 PLIST_ENTRY mark, entry;
2756 PLDR_MODULE mod;
2757 UINT i;
2758 void **pointers;
2759
2760 TRACE("()\n");
2761
2762 /* don't do any detach calls if process is exiting */
2763 if (process_detaching) return;
2764
2765 RtlEnterCriticalSection( &loader_section );
2766
2767 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
2768 for (entry = mark->Blink; entry != mark; entry = entry->Blink)
2769 {
2770 mod = CONTAINING_RECORD(entry, LDR_MODULE,
2771 InInitializationOrderModuleList);
2772 if ( !(mod->Flags & LDR_PROCESS_ATTACHED) )
2773 continue;
2774 if ( mod->Flags & LDR_NO_DLL_CALLS )
2775 continue;
2776
2777 MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr),
2778 DLL_THREAD_DETACH, NULL );
2779 }
2780
2781 RtlAcquirePebLock();
2782 RemoveEntryList( &NtCurrentTeb()->TlsLinks );
2783 RtlReleasePebLock();
2784
2785 if ((pointers = NtCurrentTeb()->ThreadLocalStoragePointer))
2786 {
2787 for (i = 0; i < tls_module_count; i++) RtlFreeHeap( GetProcessHeap(), 0, pointers[i] );
2788 RtlFreeHeap( GetProcessHeap(), 0, pointers );
2789 }
2790 RtlFreeHeap( GetProcessHeap(), 0, NtCurrentTeb()->FlsSlots );
2791 RtlFreeHeap( GetProcessHeap(), 0, NtCurrentTeb()->TlsExpansionSlots );
2792 RtlLeaveCriticalSection( &loader_section );
2793 }
2794
2795
2796 /***********************************************************************
2797 * free_modref
2798 *
2799 */
2800 static void free_modref( WINE_MODREF *wm )
2801 {
2802 RemoveEntryList(&wm->ldr.InLoadOrderModuleList);
2803 RemoveEntryList(&wm->ldr.InMemoryOrderModuleList);
2804 if (wm->ldr.InInitializationOrderModuleList.Flink)
2805 RemoveEntryList(&wm->ldr.InInitializationOrderModuleList);
2806
2807 TRACE(" unloading %s\n", debugstr_w(wm->ldr.FullDllName.Buffer));
2808 if (!TRACE_ON(module))
2809 TRACE_(loaddll)("Unloaded module %s : %s\n",
2810 debugstr_w(wm->ldr.FullDllName.Buffer),
2811 (wm->ldr.Flags & LDR_WINE_INTERNAL) ? "builtin" : "native" );
2812
2813 SERVER_START_REQ( unload_dll )
2814 {
2815 req->base = wine_server_client_ptr( wm->ldr.BaseAddress );
2816 wine_server_call( req );
2817 }
2818 SERVER_END_REQ;
2819
2820 free_tls_slot( &wm->ldr );
2821 RtlReleaseActivationContext( wm->ldr.ActivationContext );
2822 if (wm->ldr.Flags & LDR_WINE_INTERNAL) wine_dll_unload( wm->ldr.SectionHandle );
2823 NtUnmapViewOfSection( NtCurrentProcess(), wm->ldr.BaseAddress );
2824 if (cached_modref == wm) cached_modref = NULL;
2825 RtlFreeUnicodeString( &wm->ldr.FullDllName );
2826 RtlFreeHeap( GetProcessHeap(), 0, wm->deps );
2827 RtlFreeHeap( GetProcessHeap(), 0, wm );
2828 }
2829
2830 /***********************************************************************
2831 * MODULE_FlushModrefs
2832 *
2833 * Remove all unused modrefs and call the internal unloading routines
2834 * for the library type.
2835 *
2836 * The loader_section must be locked while calling this function.
2837 */
2838 static void MODULE_FlushModrefs(void)
2839 {
2840 PLIST_ENTRY mark, entry, prev;
2841 PLDR_MODULE mod;
2842 WINE_MODREF*wm;
2843
2844 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
2845 for (entry = mark->Blink; entry != mark; entry = prev)
2846 {
2847 mod = CONTAINING_RECORD(entry, LDR_MODULE, InInitializationOrderModuleList);
2848 wm = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
2849 prev = entry->Blink;
2850 if (!mod->LoadCount) free_modref( wm );
2851 }
2852
2853 /* check load order list too for modules that haven't been initialized yet */
2854 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
2855 for (entry = mark->Blink; entry != mark; entry = prev)
2856 {
2857 mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
2858 wm = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
2859 prev = entry->Blink;
2860 if (!mod->LoadCount) free_modref( wm );
2861 }
2862 }
2863
2864 /***********************************************************************
2865 * MODULE_DecRefCount
2866 *
2867 * The loader_section must be locked while calling this function.
2868 */
2869 static void MODULE_DecRefCount( WINE_MODREF *wm )
2870 {
2871 int i;
2872
2873 if ( wm->ldr.Flags & LDR_UNLOAD_IN_PROGRESS )
2874 return;
2875
2876 if ( wm->ldr.LoadCount <= 0 )
2877 return;
2878
2879 --wm->ldr.LoadCount;
2880 TRACE("(%s) ldr.LoadCount: %d\n", debugstr_w(wm->ldr.BaseDllName.Buffer), wm->ldr.LoadCount );
2881
2882 if ( wm->ldr.LoadCount == 0 )
2883 {
2884 wm->ldr.Flags |= LDR_UNLOAD_IN_PROGRESS;
2885
2886 for ( i = 0; i < wm->nDeps; i++ )
2887 if ( wm->deps[i] )
2888 MODULE_DecRefCount( wm->deps[i] );
2889
2890 wm->ldr.Flags &= ~LDR_UNLOAD_IN_PROGRESS;
2891 }
2892 }
2893
2894 /******************************************************************
2895 * LdrUnloadDll (NTDLL.@)
2896 *
2897 *
2898 */
2899 NTSTATUS WINAPI LdrUnloadDll( HMODULE hModule )
2900 {
2901 WINE_MODREF *wm;
2902 NTSTATUS retv = STATUS_SUCCESS;
2903
2904 if (process_detaching) return retv;
2905
2906 TRACE("(%p)\n", hModule);
2907
2908 RtlEnterCriticalSection( &loader_section );
2909
2910 free_lib_count++;
2911 if ((wm = get_modref( hModule )) != NULL)
2912 {
2913 TRACE("(%s) - START\n", debugstr_w(wm->ldr.BaseDllName.Buffer));
2914
2915 /* Recursively decrement reference counts */
2916 MODULE_DecRefCount( wm );
2917
2918 /* Call process detach notifications */
2919 if ( free_lib_count <= 1 )
2920 {
2921 process_detach();
2922 MODULE_FlushModrefs();
2923 }
2924
2925 TRACE("END\n");
2926 }
2927 else
2928 retv = STATUS_DLL_NOT_FOUND;
2929
2930 free_lib_count--;
2931
2932 RtlLeaveCriticalSection( &loader_section );
2933
2934 return retv;
2935 }
2936
2937 /***********************************************************************
2938 * RtlImageNtHeader (NTDLL.@)
2939 */
2940 PIMAGE_NT_HEADERS WINAPI RtlImageNtHeader(HMODULE hModule)
2941 {
2942 IMAGE_NT_HEADERS *ret;
2943
2944 __TRY
2945 {
2946 IMAGE_DOS_HEADER *dos = (IMAGE_DOS_HEADER *)hModule;
2947
2948 ret = NULL;
2949 if (dos->e_magic == IMAGE_DOS_SIGNATURE)
2950 {
2951 ret = (IMAGE_NT_HEADERS *)((char *)dos + dos->e_lfanew);
2952 if (ret->Signature != IMAGE_NT_SIGNATURE) ret = NULL;
2953 }
2954 }
2955 __EXCEPT_PAGE_FAULT
2956 {
2957 return NULL;
2958 }
2959 __ENDTRY
2960 return ret;
2961 }
2962
2963
2964 /***********************************************************************
2965 * attach_process_dlls
2966 *
2967 * Initial attach to all the dlls loaded by the process.
2968 */
2969 static NTSTATUS attach_process_dlls( void *wm )
2970 {
2971 NTSTATUS status;
2972
2973 pthread_sigmask( SIG_UNBLOCK, &server_block_set, NULL );
2974
2975 RtlEnterCriticalSection( &loader_section );
2976 if ((status = process_attach( wm, (LPVOID)1 )) != STATUS_SUCCESS)
2977 {
2978 if (last_failed_modref)
2979 ERR( "%s failed to initialize, aborting\n",
2980 debugstr_w(last_failed_modref->ldr.BaseDllName.Buffer) + 1 );
2981 return status;
2982 }
2983 attach_implicitly_loaded_dlls( (LPVOID)1 );
2984 RtlLeaveCriticalSection( &loader_section );
2985 return status;
2986 }
2987
2988
2989 /***********************************************************************
2990 * load_global_options
2991 */
2992 static void load_global_options(void)
2993 {
2994 static const WCHAR sessionW[] = {'M','a','c','h','i','n','e','\\',
2995 'S','y','s','t','e','m','\\',
2996 'C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
2997 'C','o','n','t','r','o','l','\\',
2998 'S','e','s','s','i','o','n',' ','M','a','n','a','g','e','r',0};
2999 static const WCHAR globalflagW[] = {'G','l','o','b','a','l','F','l','a','g',0};
3000 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};
3001 static const WCHAR heapresW[] = {'H','e','a','p','S','e','g','m','e','n','t','R','e','s','e','r','v','e',0};
3002 static const WCHAR heapcommitW[] = {'H','e','a','p','S','e','g','m','e','n','t','C','o','m','m','i','t',0};
3003 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};
3004 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};
3005
3006 OBJECT_ATTRIBUTES attr;
3007 UNICODE_STRING name_str;
3008 HANDLE hkey;
3009 ULONG value;
3010
3011 attr.Length = sizeof(attr);
3012 attr.RootDirectory = 0;
3013 attr.ObjectName = &name_str;
3014 attr.Attributes = OBJ_CASE_INSENSITIVE;
3015 attr.SecurityDescriptor = NULL;
3016 attr.SecurityQualityOfService = NULL;
3017 RtlInitUnicodeString( &name_str, sessionW );
3018
3019 if (NtOpenKey( &hkey, KEY_QUERY_VALUE, &attr )) return;
3020
3021 query_dword_option( hkey, globalflagW, &NtCurrentTeb()->Peb->NtGlobalFlag );
3022
3023 query_dword_option( hkey, critsectW, &value );
3024 NtCurrentTeb()->Peb->CriticalSectionTimeout.QuadPart = (ULONGLONG)value * -10000000;
3025
3026 query_dword_option( hkey, heapresW, &value );
3027 NtCurrentTeb()->Peb->HeapSegmentReserve = value;
3028
3029 query_dword_option( hkey, heapcommitW, &value );
3030 NtCurrentTeb()->Peb->HeapSegmentCommit = value;
3031
3032 query_dword_option( hkey, decommittotalW, &value );
3033 NtCurrentTeb()->Peb->HeapDeCommitTotalFreeThreshold = value;
3034
3035 query_dword_option( hkey, decommitfreeW, &value );
3036 NtCurrentTeb()->Peb->HeapDeCommitFreeBlockThreshold = value;
3037
3038 NtClose( hkey );
3039 }
3040
3041
3042 /***********************************************************************
3043 * start_process
3044 */
3045 static void start_process( void *kernel_start )
3046 {
3047 call_thread_entry_point( kernel_start, NtCurrentTeb()->Peb );
3048 }
3049
3050 /******************************************************************
3051 * LdrInitializeThunk (NTDLL.@)
3052 *
3053 */
3054 void WINAPI LdrInitializeThunk( void *kernel_start, ULONG_PTR unknown2,
3055 ULONG_PTR unknown3, ULONG_PTR unknown4 )
3056 {
3057 static const WCHAR globalflagW[] = {'G','l','o','b','a','l','F','l','a','g',0};
3058 NTSTATUS status;
3059 WINE_MODREF *wm;
3060 LPCWSTR load_path;
3061 PEB *peb = NtCurrentTeb()->Peb;
3062
3063 if (main_exe_file) NtClose( main_exe_file ); /* at this point the main module is created */
3064
3065 /* allocate the modref for the main exe (if not already done) */
3066 wm = get_modref( peb->ImageBaseAddress );
3067 assert( wm );
3068 if (wm->ldr.Flags & LDR_IMAGE_IS_DLL)
3069 {
3070 ERR("%s is a dll, not an executable\n", debugstr_w(wm->ldr.FullDllName.Buffer) );
3071 exit(1);
3072 }
3073
3074 peb->LoaderLock = &loader_section;
3075 peb->ProcessParameters->ImagePathName = wm->ldr.FullDllName;
3076 if (!peb->ProcessParameters->WindowTitle.Buffer)
3077 peb->ProcessParameters->WindowTitle = wm->ldr.FullDllName;
3078 version_init( wm->ldr.FullDllName.Buffer );
3079 virtual_set_large_address_space();
3080
3081 LdrQueryImageFileExecutionOptions( &peb->ProcessParameters->ImagePathName, globalflagW,
3082 REG_DWORD, &peb->NtGlobalFlag, sizeof(peb->NtGlobalFlag), NULL );
3083
3084 /* the main exe needs to be the first in the load order list */
3085 RemoveEntryList( &wm->ldr.InLoadOrderModuleList );
3086 InsertHeadList( &peb->LdrData->InLoadOrderModuleList, &wm->ldr.InLoadOrderModuleList );
3087 RemoveEntryList( &wm->ldr.InMemoryOrderModuleList );
3088 InsertHeadList( &peb->LdrData->InMemoryOrderModuleList, &wm->ldr.InMemoryOrderModuleList );
3089
3090 if ((status = virtual_alloc_thread_stack( NtCurrentTeb(), 0, 0 )) != STATUS_SUCCESS) goto error;
3091 if ((status = server_init_process_done()) != STATUS_SUCCESS) goto error;
3092
3093 actctx_init();
3094 load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
3095 if ((status = fixup_imports( wm, load_path )) != STATUS_SUCCESS) goto error;
3096 heap_set_debug_flags( GetProcessHeap() );
3097
3098 status = wine_call_on_stack( attach_process_dlls, wm, NtCurrentTeb()->Tib.StackBase );
3099 if (status != STATUS_SUCCESS) goto error;
3100
3101 virtual_release_address_space();
3102 virtual_clear_thread_stack();
3103 wine_switch_to_stack( start_process, kernel_start, NtCurrentTeb()->Tib.StackBase );
3104
3105 error:
3106 ERR( "Main exe initialization for %s failed, status %x\n",
3107 debugstr_w(peb->ProcessParameters->ImagePathName.Buffer), status );
3108 NtTerminateProcess( GetCurrentProcess(), status );
3109 }
3110
3111
3112 /***********************************************************************
3113 * RtlImageDirectoryEntryToData (NTDLL.@)
3114 */
3115 PVOID WINAPI RtlImageDirectoryEntryToData( HMODULE module, BOOL image, WORD dir, ULONG *size )
3116 {
3117 const IMAGE_NT_HEADERS *nt;
3118 DWORD addr;
3119
3120 if ((ULONG_PTR)module & 1) /* mapped as data file */
3121 {
3122 module = (HMODULE)((ULONG_PTR)module & ~1);
3123 image = FALSE;
3124 }
3125 if (!(nt = RtlImageNtHeader( module ))) return NULL;
3126 if (nt->OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR64_MAGIC)
3127 {
3128 const IMAGE_NT_HEADERS64 *nt64 = (const IMAGE_NT_HEADERS64 *)nt;
3129
3130 if (dir >= nt64->OptionalHeader.NumberOfRvaAndSizes) return NULL;
3131 if (!(addr = nt64->OptionalHeader.DataDirectory[dir].VirtualAddress)) return NULL;
3132 *size = nt64->OptionalHeader.DataDirectory[dir].Size;
3133 if (image || addr < nt64->OptionalHeader.SizeOfHeaders) return (char *)module + addr;
3134 }
3135 else if (nt->OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR32_MAGIC)
3136 {
3137 const IMAGE_NT_HEADERS32 *nt32 = (const IMAGE_NT_HEADERS32 *)nt;
3138
3139 if (dir >= nt32->OptionalHeader.NumberOfRvaAndSizes) return NULL;
3140 if (!(addr = nt32->OptionalHeader.DataDirectory[dir].VirtualAddress)) return NULL;
3141 *size = nt32->OptionalHeader.DataDirectory[dir].Size;
3142 if (image || addr < nt32->OptionalHeader.SizeOfHeaders) return (char *)module + addr;
3143 }
3144 else return NULL;
3145
3146 /* not mapped as image, need to find the section containing the virtual address */
3147 return RtlImageRvaToVa( nt, module, addr, NULL );
3148 }
3149
3150
3151 /***********************************************************************
3152 * RtlImageRvaToSection (NTDLL.@)
3153 */
3154 PIMAGE_SECTION_HEADER WINAPI RtlImageRvaToSection( const IMAGE_NT_HEADERS *nt,
3155 HMODULE module, DWORD rva )
3156 {
3157 int i;
3158 const IMAGE_SECTION_HEADER *sec;
3159
3160 sec = (const IMAGE_SECTION_HEADER*)((const char*)&nt->OptionalHeader +
3161 nt->FileHeader.SizeOfOptionalHeader);
3162 for (i = 0; i < nt->FileHeader.NumberOfSections; i++, sec++)
3163 {
3164 if ((sec->VirtualAddress <= rva) && (sec->VirtualAddress + sec->SizeOfRawData > rva))
3165 return (PIMAGE_SECTION_HEADER)sec;
3166 }
3167 return NULL;
3168 }
3169
3170
3171 /***********************************************************************
3172 * RtlImageRvaToVa (NTDLL.@)
3173 */
3174 PVOID WINAPI RtlImageRvaToVa( const IMAGE_NT_HEADERS *nt, HMODULE module,
3175 DWORD rva, IMAGE_SECTION_HEADER **section )
3176 {
3177 IMAGE_SECTION_HEADER *sec;
3178
3179 if (section && *section) /* try this section first */
3180 {
3181 sec = *section;
3182 if ((sec->VirtualAddress <= rva) && (sec->VirtualAddress + sec->SizeOfRawData > rva))
3183 goto found;
3184 }
3185 if (!(sec = RtlImageRvaToSection( nt, module, rva ))) return NULL;
3186 found:
3187 if (section) *section = sec;
3188 return (char *)module + sec->PointerToRawData + (rva - sec->VirtualAddress);
3189 }
3190
3191
3192 /***********************************************************************
3193 * RtlPcToFileHeader (NTDLL.@)
3194 */
3195 PVOID WINAPI RtlPcToFileHeader( PVOID pc, PVOID *address )
3196 {
3197 LDR_MODULE *module;
3198 PVOID ret = NULL;
3199
3200 RtlEnterCriticalSection( &loader_section );
3201 if (!LdrFindEntryForAddress( pc, &module )) ret = module->BaseAddress;
3202 RtlLeaveCriticalSection( &loader_section );
3203 *address = ret;
3204 return ret;
3205 }
3206
3207
3208 /***********************************************************************
3209 * NtLoadDriver (NTDLL.@)
3210 * ZwLoadDriver (NTDLL.@)
3211 */
3212 NTSTATUS WINAPI NtLoadDriver( const UNICODE_STRING *DriverServiceName )
3213 {
3214 FIXME("(%p), stub!\n",DriverServiceName);
3215 return STATUS_NOT_IMPLEMENTED;
3216 }
3217
3218
3219 /***********************************************************************
3220 * NtUnloadDriver (NTDLL.@)
3221 * ZwUnloadDriver (NTDLL.@)
3222 */
3223 NTSTATUS WINAPI NtUnloadDriver( const UNICODE_STRING *DriverServiceName )
3224 {
3225 FIXME("(%p), stub!\n",DriverServiceName);
3226 return STATUS_NOT_IMPLEMENTED;
3227 }
3228
3229
3230 /******************************************************************
3231 * DllMain (NTDLL.@)
3232 */
3233 BOOL WINAPI DllMain( HINSTANCE inst, DWORD reason, LPVOID reserved )
3234 {
3235 if (reason == DLL_PROCESS_ATTACH) LdrDisableThreadCalloutsForDll( inst );
3236 return TRUE;
3237 }
3238
3239
3240 /******************************************************************
3241 * __wine_init_windows_dir (NTDLL.@)
3242 *
3243 * Windows and system dir initialization once kernel32 has been loaded.
3244 */
3245 void CDECL __wine_init_windows_dir( const WCHAR *windir, const WCHAR *sysdir )
3246 {
3247 PLIST_ENTRY mark, entry;
3248 LPWSTR buffer, p;
3249
3250 strcpyW( user_shared_data->NtSystemRoot, windir );
3251 DIR_init_windows_dir( windir, sysdir );
3252
3253 /* prepend the system dir to the name of the already created modules */
3254 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
3255 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
3256 {
3257 LDR_MODULE *mod = CONTAINING_RECORD( entry, LDR_MODULE, InLoadOrderModuleList );
3258
3259 assert( mod->Flags & LDR_WINE_INTERNAL );
3260
3261 buffer = RtlAllocateHeap( GetProcessHeap(), 0,
3262 system_dir.Length + mod->FullDllName.Length + 2*sizeof(WCHAR) );
3263 if (!buffer) continue;
3264 strcpyW( buffer, system_dir.Buffer );
3265 p = buffer + strlenW( buffer );
3266 if (p > buffer && p[-1] != '\\') *p++ = '\\';
3267 strcpyW( p, mod->FullDllName.Buffer );
3268 RtlInitUnicodeString( &mod->FullDllName, buffer );
3269 RtlInitUnicodeString( &mod->BaseDllName, p );
3270 }
3271 }
3272
3273
3274 /***********************************************************************
3275 * __wine_process_init
3276 */
3277 void __wine_process_init(void)
3278 {
3279 static const WCHAR kernel32W[] = {'k','e','r','n','e','l','3','2','.','d','l','l',0};
3280
3281 WINE_MODREF *wm;
3282 NTSTATUS status;
3283 ANSI_STRING func_name;
3284 void (* DECLSPEC_NORETURN CDECL init_func)(void);
3285
3286 main_exe_file = thread_init();
3287
3288 /* retrieve current umask */
3289 FILE_umask = umask(0777);
3290 umask( FILE_umask );
3291
3292 load_global_options();
3293
3294 /* setup the load callback and create ntdll modref */
3295 wine_dll_set_callback( load_builtin_callback );
3296
3297 if ((status = load_builtin_dll( NULL, kernel32W, 0, 0, &wm )) != STATUS_SUCCESS)
3298 {
3299 MESSAGE( "wine: could not load kernel32.dll, status %x\n", status );
3300 exit(1);
3301 }
3302 RtlInitAnsiString( &func_name, "UnhandledExceptionFilter" );
3303 LdrGetProcedureAddress( wm->ldr.BaseAddress, &func_name, 0, (void **)&unhandled_exception_filter );
3304
3305 RtlInitAnsiString( &func_name, "__wine_kernel_init" );
3306 if ((status = LdrGetProcedureAddress( wm->ldr.BaseAddress, &func_name,
3307 0, (void **)&init_func )) != STATUS_SUCCESS)
3308 {
3309 MESSAGE( "wine: could not find __wine_kernel_init in kernel32.dll, status %x\n", status );
3310 exit(1);
3311 }
3312 init_func();
3313 }
Windows API implementation