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wined3d: Correctly destroy the adapter on format initialization failure in no3d mode.
[wine/zf.git] / dlls / ntdll / unix / server.c
blobfadfcc2f9feaf7f6571719d0c82e159f206b5086
1 /*
2 * Wine server communication
3 *
4 * Copyright (C) 1998 Alexandre Julliard
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19 */
20
21 #if 0
22 #pragma makedep unix
23 #endif
24
25 #include "config.h"
26 #include "wine/port.h"
27
28 #include <assert.h>
29 #include <ctype.h>
30 #include <errno.h>
31 #include <fcntl.h>
32 #ifdef HAVE_LWP_H
33 #include <lwp.h>
34 #endif
35 #ifdef HAVE_PTHREAD_NP_H
36 # include <pthread_np.h>
37 #endif
38 #ifdef HAVE_PWD_H
39 # include <pwd.h>
40 #endif
41 #include <signal.h>
42 #include <stdarg.h>
43 #include <stdio.h>
44 #include <string.h>
45 #include <sys/types.h>
46 #ifdef HAVE_SYS_SOCKET_H
47 # include <sys/socket.h>
48 #endif
49 #ifdef HAVE_SYS_WAIT_H
50 #include <sys/wait.h>
51 #endif
52 #ifdef HAVE_SYS_UN_H
53 #include <sys/un.h>
54 #endif
55 #ifdef HAVE_SYS_MMAN_H
56 #include <sys/mman.h>
57 #endif
58 #ifdef HAVE_SYS_PRCTL_H
59 # include <sys/prctl.h>
60 #endif
61 #ifdef HAVE_SYS_STAT_H
62 # include <sys/stat.h>
63 #endif
64 #ifdef HAVE_SYS_SYSCALL_H
65 # include <sys/syscall.h>
66 #endif
67 #ifdef HAVE_SYS_UIO_H
68 #include <sys/uio.h>
69 #endif
70 #ifdef HAVE_SYS_THR_H
71 #include <sys/thr.h>
72 #endif
73 #ifdef HAVE_UNISTD_H
74 # include <unistd.h>
75 #endif
76 #ifdef __APPLE__
77 #include <crt_externs.h>
78 #include <spawn.h>
79 #ifndef _POSIX_SPAWN_DISABLE_ASLR
80 #define _POSIX_SPAWN_DISABLE_ASLR 0x0100
81 #endif
82 #endif
83
84 #include "ntstatus.h"
85 #define WIN32_NO_STATUS
86 #include "windef.h"
87 #include "winnt.h"
88 #include "wine/library.h"
89 #include "wine/server.h"
90 #include "wine/debug.h"
91 #include "unix_private.h"
92 #include "ddk/wdm.h"
93
94 WINE_DEFAULT_DEBUG_CHANNEL(server);
95
96 #ifndef MSG_CMSG_CLOEXEC
97 #define MSG_CMSG_CLOEXEC 0
98 #endif
99
100 #define SOCKETNAME "socket" /* name of the socket file */
101 #define LOCKNAME "lock" /* name of the lock file */
102
103 static const BOOL is_win64 = (sizeof(void *) > sizeof(int));
104
105 static const char *server_dir;
106
107 unsigned int server_cpus = 0;
108 BOOL is_wow64 = FALSE;
109
110 timeout_t server_start_time = 0; /* time of server startup */
111
112 sigset_t server_block_set; /* signals to block during server calls */
113 static int fd_socket = -1; /* socket to exchange file descriptors with the server */
114 static pid_t server_pid;
115 static pthread_mutex_t fd_cache_mutex = PTHREAD_MUTEX_INITIALIZER;
116
117 /* atomically exchange a 64-bit value */
118 static inline LONG64 interlocked_xchg64( LONG64 *dest, LONG64 val )
119 {
120 #ifdef _WIN64
121 return (LONG64)InterlockedExchangePointer( (void **)dest, (void *)val );
122 #else
123 LONG64 tmp = *dest;
124 while (InterlockedCompareExchange64( dest, val, tmp ) != tmp) tmp = *dest;
125 return tmp;
126 #endif
127 }
128
129 #ifdef __GNUC__
130 static void fatal_error( const char *err, ... ) __attribute__((noreturn, format(printf,1,2)));
131 static void fatal_perror( const char *err, ... ) __attribute__((noreturn, format(printf,1,2)));
132 static void server_connect_error( const char *serverdir ) __attribute__((noreturn));
133 #endif
134
135 /* die on a fatal error; use only during initialization */
136 static void fatal_error( const char *err, ... )
137 {
138 va_list args;
139
140 va_start( args, err );
141 fprintf( stderr, "wine: " );
142 vfprintf( stderr, err, args );
143 va_end( args );
144 exit(1);
145 }
146
147 /* die on a fatal error; use only during initialization */
148 static void fatal_perror( const char *err, ... )
149 {
150 va_list args;
151
152 va_start( args, err );
153 fprintf( stderr, "wine: " );
154 vfprintf( stderr, err, args );
155 perror( " " );
156 va_end( args );
157 exit(1);
158 }
159
160 /***********************************************************************
161 * server_protocol_error
162 */
163 static DECLSPEC_NORETURN void server_protocol_error( const char *err, ... )
164 {
165 va_list args;
166
167 va_start( args, err );
168 fprintf( stderr, "wine client error:%x: ", GetCurrentThreadId() );
169 vfprintf( stderr, err, args );
170 va_end( args );
171 abort_thread(1);
172 }
173
174
175 /***********************************************************************
176 * server_protocol_perror
177 */
178 static DECLSPEC_NORETURN void server_protocol_perror( const char *err )
179 {
180 fprintf( stderr, "wine client error:%x: ", GetCurrentThreadId() );
181 perror( err );
182 abort_thread(1);
183 }
184
185
186 /***********************************************************************
187 * send_request
188 *
189 * Send a request to the server.
190 */
191 static unsigned int send_request( const struct __server_request_info *req )
192 {
193 unsigned int i;
194 int ret;
195
196 if (!req->u.req.request_header.request_size)
197 {
198 if ((ret = write( ntdll_get_thread_data()->request_fd, &req->u.req,
199 sizeof(req->u.req) )) == sizeof(req->u.req)) return STATUS_SUCCESS;
200
201 }
202 else
203 {
204 struct iovec vec[__SERVER_MAX_DATA+1];
205
206 vec[0].iov_base = (void *)&req->u.req;
207 vec[0].iov_len = sizeof(req->u.req);
208 for (i = 0; i < req->data_count; i++)
209 {
210 vec[i+1].iov_base = (void *)req->data[i].ptr;
211 vec[i+1].iov_len = req->data[i].size;
212 }
213 if ((ret = writev( ntdll_get_thread_data()->request_fd, vec, i+1 )) ==
214 req->u.req.request_header.request_size + sizeof(req->u.req)) return STATUS_SUCCESS;
215 }
216
217 if (ret >= 0) server_protocol_error( "partial write %d\n", ret );
218 if (errno == EPIPE) abort_thread(0);
219 if (errno == EFAULT) return STATUS_ACCESS_VIOLATION;
220 server_protocol_perror( "write" );
221 }
222
223
224 /***********************************************************************
225 * read_reply_data
226 *
227 * Read data from the reply buffer; helper for wait_reply.
228 */
229 static void read_reply_data( void *buffer, size_t size )
230 {
231 int ret;
232
233 for (;;)
234 {
235 if ((ret = read( ntdll_get_thread_data()->reply_fd, buffer, size )) > 0)
236 {
237 if (!(size -= ret)) return;
238 buffer = (char *)buffer + ret;
239 continue;
240 }
241 if (!ret) break;
242 if (errno == EINTR) continue;
243 if (errno == EPIPE) break;
244 server_protocol_perror("read");
245 }
246 /* the server closed the connection; time to die... */
247 abort_thread(0);
248 }
249
250
251 /***********************************************************************
252 * wait_reply
253 *
254 * Wait for a reply from the server.
255 */
256 static inline unsigned int wait_reply( struct __server_request_info *req )
257 {
258 read_reply_data( &req->u.reply, sizeof(req->u.reply) );
259 if (req->u.reply.reply_header.reply_size)
260 read_reply_data( req->reply_data, req->u.reply.reply_header.reply_size );
261 return req->u.reply.reply_header.error;
262 }
263
264
265 /***********************************************************************
266 * server_call_unlocked
267 */
268 unsigned int server_call_unlocked( void *req_ptr )
269 {
270 struct __server_request_info * const req = req_ptr;
271 unsigned int ret;
272
273 if ((ret = send_request( req ))) return ret;
274 return wait_reply( req );
275 }
276
277
278 /***********************************************************************
279 * wine_server_call
280 *
281 * Perform a server call.
282 */
283 unsigned int CDECL wine_server_call( void *req_ptr )
284 {
285 sigset_t old_set;
286 unsigned int ret;
287
288 pthread_sigmask( SIG_BLOCK, &server_block_set, &old_set );
289 ret = server_call_unlocked( req_ptr );
290 pthread_sigmask( SIG_SETMASK, &old_set, NULL );
291 return ret;
292 }
293
294
295 /***********************************************************************
296 * server_enter_uninterrupted_section
297 */
298 void server_enter_uninterrupted_section( pthread_mutex_t *mutex, sigset_t *sigset )
299 {
300 pthread_sigmask( SIG_BLOCK, &server_block_set, sigset );
301 pthread_mutex_lock( mutex );
302 }
303
304
305 /***********************************************************************
306 * server_leave_uninterrupted_section
307 */
308 void server_leave_uninterrupted_section( pthread_mutex_t *mutex, sigset_t *sigset )
309 {
310 pthread_mutex_unlock( mutex );
311 pthread_sigmask( SIG_SETMASK, sigset, NULL );
312 }
313
314
315 /***********************************************************************
316 * wait_select_reply
317 *
318 * Wait for a reply on the waiting pipe of the current thread.
319 */
320 static int wait_select_reply( void *cookie )
321 {
322 int signaled;
323 struct wake_up_reply reply;
324 for (;;)
325 {
326 int ret;
327 ret = read( ntdll_get_thread_data()->wait_fd[0], &reply, sizeof(reply) );
328 if (ret == sizeof(reply))
329 {
330 if (!reply.cookie) abort_thread( reply.signaled ); /* thread got killed */
331 if (wine_server_get_ptr(reply.cookie) == cookie) return reply.signaled;
332 /* we stole another reply, wait for the real one */
333 signaled = wait_select_reply( cookie );
334 /* and now put the wrong one back in the pipe */
335 for (;;)
336 {
337 ret = write( ntdll_get_thread_data()->wait_fd[1], &reply, sizeof(reply) );
338 if (ret == sizeof(reply)) break;
339 if (ret >= 0) server_protocol_error( "partial wakeup write %d\n", ret );
340 if (errno == EINTR) continue;
341 server_protocol_perror("wakeup write");
342 }
343 return signaled;
344 }
345 if (ret >= 0) server_protocol_error( "partial wakeup read %d\n", ret );
346 if (errno == EINTR) continue;
347 server_protocol_perror("wakeup read");
348 }
349 }
350
351
352 static void invoke_apc( const user_apc_t *apc )
353 {
354 switch( apc->type )
355 {
356 case APC_USER:
357 {
358 void (WINAPI *func)(ULONG_PTR,ULONG_PTR,ULONG_PTR) = wine_server_get_ptr( apc->user.func );
359 func( apc->user.args[0], apc->user.args[1], apc->user.args[2] );
360 break;
361 }
362 case APC_TIMER:
363 {
364 void (WINAPI *func)(void*, unsigned int, unsigned int) = wine_server_get_ptr( apc->user.func );
365 func( wine_server_get_ptr( apc->user.args[1] ),
366 (DWORD)apc->timer.time, (DWORD)(apc->timer.time >> 32) );
367 break;
368 }
369 default:
370 server_protocol_error( "get_apc_request: bad type %d\n", apc->type );
371 break;
372 }
373 }
374
375 /***********************************************************************
376 * invoke_apc
377 *
378 * Invoke a single APC.
379 *
380 */
381 static void invoke_system_apc( const apc_call_t *call, apc_result_t *result )
382 {
383 SIZE_T size, bits;
384 void *addr;
385
386 memset( result, 0, sizeof(*result) );
387
388 switch (call->type)
389 {
390 case APC_NONE:
391 break;
392 case APC_ASYNC_IO:
393 {
394 IO_STATUS_BLOCK *iosb = wine_server_get_ptr( call->async_io.sb );
395 NTSTATUS (**user)(void *, IO_STATUS_BLOCK *, NTSTATUS) = wine_server_get_ptr( call->async_io.user );
396 result->type = call->type;
397 result->async_io.status = (*user)( user, iosb, call->async_io.status );
398 if (result->async_io.status != STATUS_PENDING)
399 result->async_io.total = iosb->Information;
400 break;
401 }
402 case APC_VIRTUAL_ALLOC:
403 result->type = call->type;
404 addr = wine_server_get_ptr( call->virtual_alloc.addr );
405 size = call->virtual_alloc.size;
406 bits = call->virtual_alloc.zero_bits;
407 if ((ULONG_PTR)addr == call->virtual_alloc.addr && size == call->virtual_alloc.size &&
408 bits == call->virtual_alloc.zero_bits)
409 {
410 result->virtual_alloc.status = NtAllocateVirtualMemory( NtCurrentProcess(), &addr, bits, &size,
411 call->virtual_alloc.op_type,
412 call->virtual_alloc.prot );
413 result->virtual_alloc.addr = wine_server_client_ptr( addr );
414 result->virtual_alloc.size = size;
415 }
416 else result->virtual_alloc.status = STATUS_WORKING_SET_LIMIT_RANGE;
417 break;
418 case APC_VIRTUAL_FREE:
419 result->type = call->type;
420 addr = wine_server_get_ptr( call->virtual_free.addr );
421 size = call->virtual_free.size;
422 if ((ULONG_PTR)addr == call->virtual_free.addr && size == call->virtual_free.size)
423 {
424 result->virtual_free.status = NtFreeVirtualMemory( NtCurrentProcess(), &addr, &size,
425 call->virtual_free.op_type );
426 result->virtual_free.addr = wine_server_client_ptr( addr );
427 result->virtual_free.size = size;
428 }
429 else result->virtual_free.status = STATUS_INVALID_PARAMETER;
430 break;
431 case APC_VIRTUAL_QUERY:
432 {
433 MEMORY_BASIC_INFORMATION info;
434 result->type = call->type;
435 addr = wine_server_get_ptr( call->virtual_query.addr );
436 if ((ULONG_PTR)addr == call->virtual_query.addr)
437 result->virtual_query.status = NtQueryVirtualMemory( NtCurrentProcess(),
438 addr, MemoryBasicInformation, &info,
439 sizeof(info), NULL );
440 else
441 result->virtual_query.status = STATUS_WORKING_SET_LIMIT_RANGE;
442
443 if (result->virtual_query.status == STATUS_SUCCESS)
444 {
445 result->virtual_query.base = wine_server_client_ptr( info.BaseAddress );
446 result->virtual_query.alloc_base = wine_server_client_ptr( info.AllocationBase );
447 result->virtual_query.size = info.RegionSize;
448 result->virtual_query.prot = info.Protect;
449 result->virtual_query.alloc_prot = info.AllocationProtect;
450 result->virtual_query.state = info.State >> 12;
451 result->virtual_query.alloc_type = info.Type >> 16;
452 }
453 break;
454 }
455 case APC_VIRTUAL_PROTECT:
456 result->type = call->type;
457 addr = wine_server_get_ptr( call->virtual_protect.addr );
458 size = call->virtual_protect.size;
459 if ((ULONG_PTR)addr == call->virtual_protect.addr && size == call->virtual_protect.size)
460 {
461 result->virtual_protect.status = NtProtectVirtualMemory( NtCurrentProcess(), &addr, &size,
462 call->virtual_protect.prot,
463 &result->virtual_protect.prot );
464 result->virtual_protect.addr = wine_server_client_ptr( addr );
465 result->virtual_protect.size = size;
466 }
467 else result->virtual_protect.status = STATUS_INVALID_PARAMETER;
468 break;
469 case APC_VIRTUAL_FLUSH:
470 result->type = call->type;
471 addr = wine_server_get_ptr( call->virtual_flush.addr );
472 size = call->virtual_flush.size;
473 if ((ULONG_PTR)addr == call->virtual_flush.addr && size == call->virtual_flush.size)
474 {
475 result->virtual_flush.status = NtFlushVirtualMemory( NtCurrentProcess(),
476 (const void **)&addr, &size, 0 );
477 result->virtual_flush.addr = wine_server_client_ptr( addr );
478 result->virtual_flush.size = size;
479 }
480 else result->virtual_flush.status = STATUS_INVALID_PARAMETER;
481 break;
482 case APC_VIRTUAL_LOCK:
483 result->type = call->type;
484 addr = wine_server_get_ptr( call->virtual_lock.addr );
485 size = call->virtual_lock.size;
486 if ((ULONG_PTR)addr == call->virtual_lock.addr && size == call->virtual_lock.size)
487 {
488 result->virtual_lock.status = NtLockVirtualMemory( NtCurrentProcess(), &addr, &size, 0 );
489 result->virtual_lock.addr = wine_server_client_ptr( addr );
490 result->virtual_lock.size = size;
491 }
492 else result->virtual_lock.status = STATUS_INVALID_PARAMETER;
493 break;
494 case APC_VIRTUAL_UNLOCK:
495 result->type = call->type;
496 addr = wine_server_get_ptr( call->virtual_unlock.addr );
497 size = call->virtual_unlock.size;
498 if ((ULONG_PTR)addr == call->virtual_unlock.addr && size == call->virtual_unlock.size)
499 {
500 result->virtual_unlock.status = NtUnlockVirtualMemory( NtCurrentProcess(), &addr, &size, 0 );
501 result->virtual_unlock.addr = wine_server_client_ptr( addr );
502 result->virtual_unlock.size = size;
503 }
504 else result->virtual_unlock.status = STATUS_INVALID_PARAMETER;
505 break;
506 case APC_MAP_VIEW:
507 result->type = call->type;
508 addr = wine_server_get_ptr( call->map_view.addr );
509 size = call->map_view.size;
510 bits = call->map_view.zero_bits;
511 if ((ULONG_PTR)addr == call->map_view.addr && size == call->map_view.size &&
512 bits == call->map_view.zero_bits)
513 {
514 LARGE_INTEGER offset;
515 offset.QuadPart = call->map_view.offset;
516 result->map_view.status = NtMapViewOfSection( wine_server_ptr_handle(call->map_view.handle),
517 NtCurrentProcess(),
518 &addr, bits, 0, &offset, &size, 0,
519 call->map_view.alloc_type, call->map_view.prot );
520 result->map_view.addr = wine_server_client_ptr( addr );
521 result->map_view.size = size;
522 }
523 else result->map_view.status = STATUS_INVALID_PARAMETER;
524 NtClose( wine_server_ptr_handle(call->map_view.handle) );
525 break;
526 case APC_UNMAP_VIEW:
527 result->type = call->type;
528 addr = wine_server_get_ptr( call->unmap_view.addr );
529 if ((ULONG_PTR)addr == call->unmap_view.addr)
530 result->unmap_view.status = NtUnmapViewOfSection( NtCurrentProcess(), addr );
531 else
532 result->unmap_view.status = STATUS_INVALID_PARAMETER;
533 break;
534 case APC_CREATE_THREAD:
535 {
536 ULONG_PTR buffer[offsetof( PS_ATTRIBUTE_LIST, Attributes[2] ) / sizeof(ULONG_PTR)];
537 PS_ATTRIBUTE_LIST *attr = (PS_ATTRIBUTE_LIST *)buffer;
538 CLIENT_ID id;
539 HANDLE handle;
540 TEB *teb;
541 SIZE_T reserve = call->create_thread.reserve;
542 SIZE_T commit = call->create_thread.commit;
543 void *func = wine_server_get_ptr( call->create_thread.func );
544 void *arg = wine_server_get_ptr( call->create_thread.arg );
545
546 result->type = call->type;
547 if (reserve == call->create_thread.reserve && commit == call->create_thread.commit &&
548 (ULONG_PTR)func == call->create_thread.func && (ULONG_PTR)arg == call->create_thread.arg)
549 {
550 attr->TotalLength = sizeof(buffer);
551 attr->Attributes[0].Attribute = PS_ATTRIBUTE_CLIENT_ID;
552 attr->Attributes[0].Size = sizeof(id);
553 attr->Attributes[0].ValuePtr = &id;
554 attr->Attributes[0].ReturnLength = NULL;
555 attr->Attributes[1].Attribute = PS_ATTRIBUTE_TEB_ADDRESS;
556 attr->Attributes[1].Size = sizeof(teb);
557 attr->Attributes[1].ValuePtr = &teb;
558 attr->Attributes[1].ReturnLength = NULL;
559 result->create_thread.status = NtCreateThreadEx( &handle, THREAD_ALL_ACCESS, NULL,
560 NtCurrentProcess(), func, arg,
561 call->create_thread.flags, 0,
562 commit, reserve, attr );
563 result->create_thread.handle = wine_server_obj_handle( handle );
564 result->create_thread.pid = HandleToULong(id.UniqueProcess);
565 result->create_thread.tid = HandleToULong(id.UniqueThread);
566 result->create_thread.teb = wine_server_client_ptr( teb );
567 }
568 else result->create_thread.status = STATUS_INVALID_PARAMETER;
569 break;
570 }
571 case APC_BREAK_PROCESS:
572 {
573 HANDLE handle;
574
575 result->type = APC_BREAK_PROCESS;
576 result->break_process.status = NtCreateThreadEx( &handle, THREAD_ALL_ACCESS, NULL,
577 NtCurrentProcess(), pDbgUiRemoteBreakin, NULL,
578 0, 0, 0, 0, NULL );
579 if (!result->break_process.status) NtClose( handle );
580 break;
581 }
582 default:
583 server_protocol_error( "get_apc_request: bad type %d\n", call->type );
584 break;
585 }
586 }
587
588
589 /***********************************************************************
590 * server_select
591 */
592 unsigned int server_select( const select_op_t *select_op, data_size_t size, UINT flags,
593 timeout_t abs_timeout, CONTEXT *context, pthread_mutex_t *mutex,
594 user_apc_t *user_apc )
595 {
596 unsigned int ret;
597 int cookie;
598 obj_handle_t apc_handle = 0;
599 context_t server_context;
600 BOOL suspend_context = FALSE;
601 apc_call_t call;
602 apc_result_t result;
603 sigset_t old_set;
604
605 memset( &result, 0, sizeof(result) );
606 if (context)
607 {
608 suspend_context = TRUE;
609 context_to_server( &server_context, context );
610 }
611
612 do
613 {
614 pthread_sigmask( SIG_BLOCK, &server_block_set, &old_set );
615 for (;;)
616 {
617 SERVER_START_REQ( select )
618 {
619 req->flags = flags;
620 req->cookie = wine_server_client_ptr( &cookie );
621 req->prev_apc = apc_handle;
622 req->timeout = abs_timeout;
623 req->size = size;
624 wine_server_add_data( req, &result, sizeof(result) );
625 wine_server_add_data( req, select_op, size );
626 if (suspend_context)
627 {
628 wine_server_add_data( req, &server_context, sizeof(server_context) );
629 suspend_context = FALSE; /* server owns the context now */
630 }
631 if (context) wine_server_set_reply( req, &server_context, sizeof(server_context) );
632 ret = server_call_unlocked( req );
633 apc_handle = reply->apc_handle;
634 call = reply->call;
635 if (wine_server_reply_size( reply ))
636 {
637 DWORD context_flags = context->ContextFlags; /* unchanged registers are still available */
638 context_from_server( context, &server_context );
639 context->ContextFlags |= context_flags;
640 }
641 }
642 SERVER_END_REQ;
643
644 if (ret != STATUS_KERNEL_APC) break;
645 invoke_system_apc( &call, &result );
646
647 /* don't signal multiple times */
648 if (size >= sizeof(select_op->signal_and_wait) && select_op->op == SELECT_SIGNAL_AND_WAIT)
649 size = offsetof( select_op_t, signal_and_wait.signal );
650 }
651 pthread_sigmask( SIG_SETMASK, &old_set, NULL );
652 if (mutex)
653 {
654 pthread_mutex_unlock( mutex );
655 mutex = NULL;
656 }
657 if (ret != STATUS_PENDING) break;
658
659 ret = wait_select_reply( &cookie );
660 }
661 while (ret == STATUS_USER_APC || ret == STATUS_KERNEL_APC);
662
663 if (ret == STATUS_USER_APC) *user_apc = call.user;
664 return ret;
665 }
666
667
668 /***********************************************************************
669 * server_wait
670 */
671 unsigned int server_wait( const select_op_t *select_op, data_size_t size, UINT flags,
672 const LARGE_INTEGER *timeout )
673 {
674 timeout_t abs_timeout = timeout ? timeout->QuadPart : TIMEOUT_INFINITE;
675 BOOL user_apc = FALSE;
676 unsigned int ret;
677 user_apc_t apc;
678
679 if (abs_timeout < 0)
680 {
681 LARGE_INTEGER now;
682
683 NtQueryPerformanceCounter( &now, NULL );
684 abs_timeout -= now.QuadPart;
685 }
686
687 for (;;)
688 {
689 ret = server_select( select_op, size, flags, abs_timeout, NULL, NULL, &apc );
690 if (ret != STATUS_USER_APC) break;
691 invoke_apc( &apc );
692
693 /* if we ran a user apc we have to check once more if additional apcs are queued,
694 * but we don't want to wait */
695 abs_timeout = 0;
696 user_apc = TRUE;
697 size = 0;
698 /* don't signal multiple times */
699 if (size >= sizeof(select_op->signal_and_wait) && select_op->op == SELECT_SIGNAL_AND_WAIT)
700 size = offsetof( select_op_t, signal_and_wait.signal );
701 }
702
703 if (ret == STATUS_TIMEOUT && user_apc) ret = STATUS_USER_APC;
704
705 /* A test on Windows 2000 shows that Windows always yields during
706 a wait, but a wait that is hit by an event gets a priority
707 boost as well. This seems to model that behavior the closest. */
708 if (ret == STATUS_TIMEOUT) NtYieldExecution();
709
710 return ret;
711 }
712
713
714 /***********************************************************************
715 * server_queue_process_apc
716 */
717 unsigned int server_queue_process_apc( HANDLE process, const apc_call_t *call, apc_result_t *result )
718 {
719 for (;;)
720 {
721 unsigned int ret;
722 HANDLE handle = 0;
723 BOOL self = FALSE;
724
725 SERVER_START_REQ( queue_apc )
726 {
727 req->handle = wine_server_obj_handle( process );
728 req->call = *call;
729 if (!(ret = wine_server_call( req )))
730 {
731 handle = wine_server_ptr_handle( reply->handle );
732 self = reply->self;
733 }
734 }
735 SERVER_END_REQ;
736 if (ret != STATUS_SUCCESS) return ret;
737
738 if (self)
739 {
740 invoke_system_apc( call, result );
741 }
742 else
743 {
744 NtWaitForSingleObject( handle, FALSE, NULL );
745
746 SERVER_START_REQ( get_apc_result )
747 {
748 req->handle = wine_server_obj_handle( handle );
749 if (!(ret = wine_server_call( req ))) *result = reply->result;
750 }
751 SERVER_END_REQ;
752
753 if (!ret && result->type == APC_NONE) continue; /* APC didn't run, try again */
754 }
755 return ret;
756 }
757 }
758
759
760 /***********************************************************************
761 * server_send_fd
762 *
763 * Send a file descriptor to the server.
764 */
765 void CDECL server_send_fd( int fd )
766 {
767 struct send_fd data;
768 struct msghdr msghdr;
769 struct iovec vec;
770 int ret;
771
772 #ifdef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
773 msghdr.msg_accrights = (void *)&fd;
774 msghdr.msg_accrightslen = sizeof(fd);
775 #else /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
776 char cmsg_buffer[256];
777 struct cmsghdr *cmsg;
778 msghdr.msg_control = cmsg_buffer;
779 msghdr.msg_controllen = sizeof(cmsg_buffer);
780 msghdr.msg_flags = 0;
781 cmsg = CMSG_FIRSTHDR( &msghdr );
782 cmsg->cmsg_len = CMSG_LEN( sizeof(fd) );
783 cmsg->cmsg_level = SOL_SOCKET;
784 cmsg->cmsg_type = SCM_RIGHTS;
785 *(int *)CMSG_DATA(cmsg) = fd;
786 msghdr.msg_controllen = cmsg->cmsg_len;
787 #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
788
789 msghdr.msg_name = NULL;
790 msghdr.msg_namelen = 0;
791 msghdr.msg_iov = &vec;
792 msghdr.msg_iovlen = 1;
793
794 vec.iov_base = (void *)&data;
795 vec.iov_len = sizeof(data);
796
797 data.tid = GetCurrentThreadId();
798 data.fd = fd;
799
800 for (;;)
801 {
802 if ((ret = sendmsg( fd_socket, &msghdr, 0 )) == sizeof(data)) return;
803 if (ret >= 0) server_protocol_error( "partial write %d\n", ret );
804 if (errno == EINTR) continue;
805 if (errno == EPIPE) abort_thread(0);
806 server_protocol_perror( "sendmsg" );
807 }
808 }
809
810
811 /***********************************************************************
812 * receive_fd
813 *
814 * Receive a file descriptor passed from the server.
815 */
816 static int receive_fd( obj_handle_t *handle )
817 {
818 struct iovec vec;
819 struct msghdr msghdr;
820 int ret, fd = -1;
821
822 #ifdef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
823 msghdr.msg_accrights = (void *)&fd;
824 msghdr.msg_accrightslen = sizeof(fd);
825 #else /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
826 char cmsg_buffer[256];
827 msghdr.msg_control = cmsg_buffer;
828 msghdr.msg_controllen = sizeof(cmsg_buffer);
829 msghdr.msg_flags = 0;
830 #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
831
832 msghdr.msg_name = NULL;
833 msghdr.msg_namelen = 0;
834 msghdr.msg_iov = &vec;
835 msghdr.msg_iovlen = 1;
836 vec.iov_base = (void *)handle;
837 vec.iov_len = sizeof(*handle);
838
839 for (;;)
840 {
841 if ((ret = recvmsg( fd_socket, &msghdr, MSG_CMSG_CLOEXEC )) > 0)
842 {
843 #ifndef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
844 struct cmsghdr *cmsg;
845 for (cmsg = CMSG_FIRSTHDR( &msghdr ); cmsg; cmsg = CMSG_NXTHDR( &msghdr, cmsg ))
846 {
847 if (cmsg->cmsg_level != SOL_SOCKET) continue;
848 if (cmsg->cmsg_type == SCM_RIGHTS) fd = *(int *)CMSG_DATA(cmsg);
849 #ifdef SCM_CREDENTIALS
850 else if (cmsg->cmsg_type == SCM_CREDENTIALS)
851 {
852 struct ucred *ucred = (struct ucred *)CMSG_DATA(cmsg);
853 server_pid = ucred->pid;
854 }
855 #endif
856 }
857 #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
858 if (fd != -1) fcntl( fd, F_SETFD, FD_CLOEXEC ); /* in case MSG_CMSG_CLOEXEC is not supported */
859 return fd;
860 }
861 if (!ret) break;
862 if (errno == EINTR) continue;
863 if (errno == EPIPE) break;
864 server_protocol_perror("recvmsg");
865 }
866 /* the server closed the connection; time to die... */
867 abort_thread(0);
868 }
869
870
871 /***********************************************************************/
872 /* fd cache support */
873
874 union fd_cache_entry
875 {
876 LONG64 data;
877 struct
878 {
879 int fd;
880 enum server_fd_type type : 5;
881 unsigned int access : 3;
882 unsigned int options : 24;
883 } s;
884 };
885
886 C_ASSERT( sizeof(union fd_cache_entry) == sizeof(LONG64) );
887
888 #define FD_CACHE_BLOCK_SIZE (65536 / sizeof(union fd_cache_entry))
889 #define FD_CACHE_ENTRIES 128
890
891 static union fd_cache_entry *fd_cache[FD_CACHE_ENTRIES];
892 static union fd_cache_entry fd_cache_initial_block[FD_CACHE_BLOCK_SIZE];
893
894 static inline unsigned int handle_to_index( HANDLE handle, unsigned int *entry )
895 {
896 unsigned int idx = (wine_server_obj_handle(handle) >> 2) - 1;
897 *entry = idx / FD_CACHE_BLOCK_SIZE;
898 return idx % FD_CACHE_BLOCK_SIZE;
899 }
900
901
902 /***********************************************************************
903 * add_fd_to_cache
904 *
905 * Caller must hold fd_cache_mutex.
906 */
907 static BOOL add_fd_to_cache( HANDLE handle, int fd, enum server_fd_type type,
908 unsigned int access, unsigned int options )
909 {
910 unsigned int entry, idx = handle_to_index( handle, &entry );
911 union fd_cache_entry cache;
912
913 if (entry >= FD_CACHE_ENTRIES)
914 {
915 FIXME( "too many allocated handles, not caching %p\n", handle );
916 return FALSE;
917 }
918
919 if (!fd_cache[entry]) /* do we need to allocate a new block of entries? */
920 {
921 if (!entry) fd_cache[0] = fd_cache_initial_block;
922 else
923 {
924 void *ptr = wine_anon_mmap( NULL, FD_CACHE_BLOCK_SIZE * sizeof(union fd_cache_entry),
925 PROT_READ | PROT_WRITE, 0 );
926 if (ptr == MAP_FAILED) return FALSE;
927 fd_cache[entry] = ptr;
928 }
929 }
930
931 /* store fd+1 so that 0 can be used as the unset value */
932 cache.s.fd = fd + 1;
933 cache.s.type = type;
934 cache.s.access = access;
935 cache.s.options = options;
936 cache.data = interlocked_xchg64( &fd_cache[entry][idx].data, cache.data );
937 assert( !cache.s.fd );
938 return TRUE;
939 }
940
941
942 /***********************************************************************
943 * get_cached_fd
944 */
945 static inline NTSTATUS get_cached_fd( HANDLE handle, int *fd, enum server_fd_type *type,
946 unsigned int *access, unsigned int *options )
947 {
948 unsigned int entry, idx = handle_to_index( handle, &entry );
949 union fd_cache_entry cache;
950
951 if (entry >= FD_CACHE_ENTRIES || !fd_cache[entry]) return STATUS_INVALID_HANDLE;
952
953 cache.data = InterlockedCompareExchange64( &fd_cache[entry][idx].data, 0, 0 );
954 if (!cache.data) return STATUS_INVALID_HANDLE;
955
956 /* if fd type is invalid, fd stores an error value */
957 if (cache.s.type == FD_TYPE_INVALID) return cache.s.fd - 1;
958
959 *fd = cache.s.fd - 1;
960 if (type) *type = cache.s.type;
961 if (access) *access = cache.s.access;
962 if (options) *options = cache.s.options;
963 return STATUS_SUCCESS;
964 }
965
966
967 /***********************************************************************
968 * remove_fd_from_cache
969 */
970 static int remove_fd_from_cache( HANDLE handle )
971 {
972 unsigned int entry, idx = handle_to_index( handle, &entry );
973 int fd = -1;
974
975 if (entry < FD_CACHE_ENTRIES && fd_cache[entry])
976 {
977 union fd_cache_entry cache;
978 cache.data = interlocked_xchg64( &fd_cache[entry][idx].data, 0 );
979 if (cache.s.type != FD_TYPE_INVALID) fd = cache.s.fd - 1;
980 }
981
982 return fd;
983 }
984
985
986 /***********************************************************************
987 * server_get_unix_fd
988 *
989 * The returned unix_fd should be closed iff needs_close is non-zero.
990 */
991 int server_get_unix_fd( HANDLE handle, unsigned int wanted_access, int *unix_fd,
992 int *needs_close, enum server_fd_type *type, unsigned int *options )
993 {
994 sigset_t sigset;
995 obj_handle_t fd_handle;
996 int ret, fd = -1;
997 unsigned int access = 0;
998
999 *unix_fd = -1;
1000 *needs_close = 0;
1001 wanted_access &= FILE_READ_DATA | FILE_WRITE_DATA | FILE_APPEND_DATA;
1002
1003 ret = get_cached_fd( handle, &fd, type, &access, options );
1004 if (ret != STATUS_INVALID_HANDLE) goto done;
1005
1006 server_enter_uninterrupted_section( &fd_cache_mutex, &sigset );
1007 ret = get_cached_fd( handle, &fd, type, &access, options );
1008 if (ret == STATUS_INVALID_HANDLE)
1009 {
1010 SERVER_START_REQ( get_handle_fd )
1011 {
1012 req->handle = wine_server_obj_handle( handle );
1013 if (!(ret = wine_server_call( req )))
1014 {
1015 if (type) *type = reply->type;
1016 if (options) *options = reply->options;
1017 access = reply->access;
1018 if ((fd = receive_fd( &fd_handle )) != -1)
1019 {
1020 assert( wine_server_ptr_handle(fd_handle) == handle );
1021 *needs_close = (!reply->cacheable ||
1022 !add_fd_to_cache( handle, fd, reply->type,
1023 reply->access, reply->options ));
1024 }
1025 else ret = STATUS_TOO_MANY_OPENED_FILES;
1026 }
1027 else if (reply->cacheable)
1028 {
1029 add_fd_to_cache( handle, ret, FD_TYPE_INVALID, 0, 0 );
1030 }
1031 }
1032 SERVER_END_REQ;
1033 }
1034 server_leave_uninterrupted_section( &fd_cache_mutex, &sigset );
1035
1036 done:
1037 if (!ret && ((access & wanted_access) != wanted_access))
1038 {
1039 ret = STATUS_ACCESS_DENIED;
1040 if (*needs_close) close( fd );
1041 }
1042 if (!ret) *unix_fd = fd;
1043 return ret;
1044 }
1045
1046
1047 /***********************************************************************
1048 * server_fd_to_handle
1049 */
1050 NTSTATUS CDECL server_fd_to_handle( int fd, unsigned int access, unsigned int attributes, HANDLE *handle )
1051 {
1052 NTSTATUS ret;
1053
1054 *handle = 0;
1055 server_send_fd( fd );
1056
1057 SERVER_START_REQ( alloc_file_handle )
1058 {
1059 req->access = access;
1060 req->attributes = attributes;
1061 req->fd = fd;
1062 if (!(ret = wine_server_call( req ))) *handle = wine_server_ptr_handle( reply->handle );
1063 }
1064 SERVER_END_REQ;
1065 return ret;
1066 }
1067
1068
1069 /***********************************************************************
1070 * server_handle_to_fd
1071 *
1072 * Retrieve the file descriptor corresponding to a file handle.
1073 */
1074 NTSTATUS CDECL server_handle_to_fd( HANDLE handle, unsigned int access, int *unix_fd,
1075 unsigned int *options )
1076 {
1077 int needs_close;
1078 NTSTATUS ret = server_get_unix_fd( handle, access, unix_fd, &needs_close, NULL, options );
1079
1080 if (!ret && !needs_close)
1081 {
1082 if ((*unix_fd = dup(*unix_fd)) == -1) ret = STATUS_TOO_MANY_OPENED_FILES;
1083 }
1084 return ret;
1085 }
1086
1087
1088 /***********************************************************************
1089 * server_release_fd
1090 */
1091 void CDECL server_release_fd( HANDLE handle, int unix_fd )
1092 {
1093 close( unix_fd );
1094 }
1095
1096
1097 /***********************************************************************
1098 * server_pipe
1099 *
1100 * Create a pipe for communicating with the server.
1101 */
1102 int server_pipe( int fd[2] )
1103 {
1104 int ret;
1105 #ifdef HAVE_PIPE2
1106 static BOOL have_pipe2 = TRUE;
1107
1108 if (have_pipe2)
1109 {
1110 if (!(ret = pipe2( fd, O_CLOEXEC ))) return ret;
1111 if (errno == ENOSYS || errno == EINVAL) have_pipe2 = FALSE; /* don't try again */
1112 }
1113 #endif
1114 if (!(ret = pipe( fd )))
1115 {
1116 fcntl( fd[0], F_SETFD, FD_CLOEXEC );
1117 fcntl( fd[1], F_SETFD, FD_CLOEXEC );
1118 }
1119 return ret;
1120 }
1121
1122
1123 /***********************************************************************
1124 * init_server_dir
1125 */
1126 static const char *init_server_dir( dev_t dev, ino_t ino )
1127 {
1128 char *p, *dir;
1129 size_t len = sizeof("/server-") + 2 * sizeof(dev) + 2 * sizeof(ino) + 2;
1130
1131 #ifdef __ANDROID__ /* there's no /tmp dir on Android */
1132 len += strlen( config_dir ) + sizeof("/.wineserver");
1133 dir = malloc( len );
1134 strcpy( dir, config_dir );
1135 strcat( dir, "/.wineserver/server-" );
1136 #else
1137 len += sizeof("/tmp/.wine-") + 12;
1138 dir = malloc( len );
1139 sprintf( dir, "/tmp/.wine-%u/server-", getuid() );
1140 #endif
1141 p = dir + strlen( dir );
1142 if (dev != (unsigned long)dev)
1143 p += sprintf( p, "%lx%08lx-", (unsigned long)((unsigned long long)dev >> 32), (unsigned long)dev );
1144 else
1145 p += sprintf( p, "%lx-", (unsigned long)dev );
1146
1147 if (ino != (unsigned long)ino)
1148 sprintf( p, "%lx%08lx", (unsigned long)((unsigned long long)ino >> 32), (unsigned long)ino );
1149 else
1150 sprintf( p, "%lx", (unsigned long)ino );
1151 return dir;
1152 }
1153
1154
1155 /***********************************************************************
1156 * setup_config_dir
1157 *
1158 * Setup the wine configuration dir.
1159 */
1160 static int setup_config_dir(void)
1161 {
1162 char *p;
1163 struct stat st;
1164 int fd_cwd = open( ".", O_RDONLY );
1165
1166 if (chdir( config_dir ) == -1)
1167 {
1168 if (errno != ENOENT) fatal_perror( "cannot use directory %s", config_dir );
1169 if ((p = strrchr( config_dir, '/' )) && p != config_dir)
1170 {
1171 while (p > config_dir + 1 && p[-1] == '/') p--;
1172 *p = 0;
1173 if (!stat( config_dir, &st ) && st.st_uid != getuid())
1174 fatal_error( "'%s' is not owned by you, refusing to create a configuration directory there\n",
1175 config_dir );
1176 *p = '/';
1177 }
1178 mkdir( config_dir, 0777 );
1179 if (chdir( config_dir ) == -1) fatal_perror( "chdir to %s", config_dir );
1180 MESSAGE( "wine: created the configuration directory '%s'\n", config_dir );
1181 }
1182
1183 if (stat( ".", &st ) == -1) fatal_perror( "stat %s", config_dir );
1184 if (st.st_uid != getuid()) fatal_error( "'%s' is not owned by you\n", config_dir );
1185
1186 server_dir = init_server_dir( st.st_dev, st.st_ino );
1187
1188 if (!mkdir( "dosdevices", 0777 ))
1189 {
1190 mkdir( "drive_c", 0777 );
1191 symlink( "../drive_c", "dosdevices/c:" );
1192 symlink( "/", "dosdevices/z:" );
1193 }
1194 else if (errno != EEXIST) fatal_perror( "cannot create %s/dosdevices", config_dir );
1195
1196 if (fd_cwd == -1) fd_cwd = open( "dosdevices/c:", O_RDONLY );
1197 fcntl( fd_cwd, F_SETFD, FD_CLOEXEC );
1198 return fd_cwd;
1199 }
1200
1201
1202 /***********************************************************************
1203 * server_connect_error
1204 *
1205 * Try to display a meaningful explanation of why we couldn't connect
1206 * to the server.
1207 */
1208 static void server_connect_error( const char *serverdir )
1209 {
1210 int fd;
1211 struct flock fl;
1212
1213 if ((fd = open( LOCKNAME, O_WRONLY )) == -1)
1214 fatal_error( "for some mysterious reason, the wine server never started.\n" );
1215
1216 fl.l_type = F_WRLCK;
1217 fl.l_whence = SEEK_SET;
1218 fl.l_start = 0;
1219 fl.l_len = 1;
1220 if (fcntl( fd, F_GETLK, &fl ) != -1)
1221 {
1222 if (fl.l_type == F_WRLCK) /* the file is locked */
1223 fatal_error( "a wine server seems to be running, but I cannot connect to it.\n"
1224 " You probably need to kill that process (it might be pid %d).\n",
1225 (int)fl.l_pid );
1226 fatal_error( "for some mysterious reason, the wine server failed to run.\n" );
1227 }
1228 fatal_error( "the file system of '%s' doesn't support locks,\n"
1229 " and there is a 'socket' file in that directory that prevents wine from starting.\n"
1230 " You should make sure no wine server is running, remove that file and try again.\n",
1231 serverdir );
1232 }
1233
1234
1235 /***********************************************************************
1236 * server_connect
1237 *
1238 * Attempt to connect to an existing server socket.
1239 * We need to be in the server directory already.
1240 */
1241 static int server_connect(void)
1242 {
1243 struct sockaddr_un addr;
1244 struct stat st;
1245 int s, slen, retry, fd_cwd;
1246
1247 fd_cwd = setup_config_dir();
1248
1249 /* chdir to the server directory */
1250 if (chdir( server_dir ) == -1)
1251 {
1252 if (errno != ENOENT) fatal_perror( "chdir to %s", server_dir );
1253 start_server( TRACE_ON(server) );
1254 if (chdir( server_dir ) == -1) fatal_perror( "chdir to %s", server_dir );
1255 }
1256
1257 /* make sure we are at the right place */
1258 if (stat( ".", &st ) == -1) fatal_perror( "stat %s", server_dir );
1259 if (st.st_uid != getuid()) fatal_error( "'%s' is not owned by you\n", server_dir );
1260 if (st.st_mode & 077) fatal_error( "'%s' must not be accessible by other users\n", server_dir );
1261
1262 for (retry = 0; retry < 6; retry++)
1263 {
1264 /* if not the first try, wait a bit to leave the previous server time to exit */
1265 if (retry)
1266 {
1267 usleep( 100000 * retry * retry );
1268 start_server( TRACE_ON(server) );
1269 if (lstat( SOCKETNAME, &st ) == -1) continue; /* still no socket, wait a bit more */
1270 }
1271 else if (lstat( SOCKETNAME, &st ) == -1) /* check for an already existing socket */
1272 {
1273 if (errno != ENOENT) fatal_perror( "lstat %s/%s", server_dir, SOCKETNAME );
1274 start_server( TRACE_ON(server) );
1275 if (lstat( SOCKETNAME, &st ) == -1) continue; /* still no socket, wait a bit more */
1276 }
1277
1278 /* make sure the socket is sane (ISFIFO needed for Solaris) */
1279 if (!S_ISSOCK(st.st_mode) && !S_ISFIFO(st.st_mode))
1280 fatal_error( "'%s/%s' is not a socket\n", server_dir, SOCKETNAME );
1281 if (st.st_uid != getuid())
1282 fatal_error( "'%s/%s' is not owned by you\n", server_dir, SOCKETNAME );
1283
1284 /* try to connect to it */
1285 addr.sun_family = AF_UNIX;
1286 strcpy( addr.sun_path, SOCKETNAME );
1287 slen = sizeof(addr) - sizeof(addr.sun_path) + strlen(addr.sun_path) + 1;
1288 #ifdef HAVE_STRUCT_SOCKADDR_UN_SUN_LEN
1289 addr.sun_len = slen;
1290 #endif
1291 if ((s = socket( AF_UNIX, SOCK_STREAM, 0 )) == -1) fatal_perror( "socket" );
1292 #ifdef SO_PASSCRED
1293 else
1294 {
1295 int enable = 1;
1296 setsockopt( s, SOL_SOCKET, SO_PASSCRED, &enable, sizeof(enable) );
1297 }
1298 #endif
1299 if (connect( s, (struct sockaddr *)&addr, slen ) != -1)
1300 {
1301 /* switch back to the starting directory */
1302 if (fd_cwd != -1)
1303 {
1304 fchdir( fd_cwd );
1305 close( fd_cwd );
1306 }
1307 fcntl( s, F_SETFD, FD_CLOEXEC );
1308 return s;
1309 }
1310 close( s );
1311 }
1312 server_connect_error( server_dir );
1313 }
1314
1315
1316 #ifdef __APPLE__
1317 #include <mach/mach.h>
1318 #include <mach/mach_error.h>
1319 #include <servers/bootstrap.h>
1320
1321 /* send our task port to the server */
1322 static void send_server_task_port(void)
1323 {
1324 mach_port_t bootstrap_port, wineserver_port;
1325 kern_return_t kret;
1326
1327 struct {
1328 mach_msg_header_t header;
1329 mach_msg_body_t body;
1330 mach_msg_port_descriptor_t task_port;
1331 } msg;
1332
1333 if (task_get_bootstrap_port(mach_task_self(), &bootstrap_port) != KERN_SUCCESS) return;
1334
1335 if (!server_dir)
1336 {
1337 struct stat st;
1338 stat( config_dir, &st );
1339 server_dir = init_server_dir( st.st_dev, st.st_ino );
1340 }
1341 kret = bootstrap_look_up(bootstrap_port, server_dir, &wineserver_port);
1342 if (kret != KERN_SUCCESS)
1343 fatal_error( "cannot find the server port: 0x%08x\n", kret );
1344
1345 mach_port_deallocate(mach_task_self(), bootstrap_port);
1346
1347 msg.header.msgh_bits = MACH_MSGH_BITS(MACH_MSG_TYPE_COPY_SEND, 0) | MACH_MSGH_BITS_COMPLEX;
1348 msg.header.msgh_size = sizeof(msg);
1349 msg.header.msgh_remote_port = wineserver_port;
1350 msg.header.msgh_local_port = MACH_PORT_NULL;
1351
1352 msg.body.msgh_descriptor_count = 1;
1353 msg.task_port.name = mach_task_self();
1354 msg.task_port.disposition = MACH_MSG_TYPE_COPY_SEND;
1355 msg.task_port.type = MACH_MSG_PORT_DESCRIPTOR;
1356
1357 kret = mach_msg_send(&msg.header);
1358 if (kret != KERN_SUCCESS)
1359 server_protocol_error( "mach_msg_send failed: 0x%08x\n", kret );
1360
1361 mach_port_deallocate(mach_task_self(), wineserver_port);
1362 }
1363 #endif /* __APPLE__ */
1364
1365
1366 /***********************************************************************
1367 * get_unix_tid
1368 *
1369 * Retrieve the Unix tid to use on the server side for the current thread.
1370 */
1371 static int get_unix_tid(void)
1372 {
1373 int ret = -1;
1374 #ifdef HAVE_PTHREAD_GETTHREADID_NP
1375 ret = pthread_getthreadid_np();
1376 #elif defined(linux)
1377 ret = syscall( __NR_gettid );
1378 #elif defined(__sun)
1379 ret = pthread_self();
1380 #elif defined(__APPLE__)
1381 ret = mach_thread_self();
1382 mach_port_deallocate(mach_task_self(), ret);
1383 #elif defined(__NetBSD__)
1384 ret = _lwp_self();
1385 #elif defined(__FreeBSD__)
1386 long lwpid;
1387 thr_self( &lwpid );
1388 ret = lwpid;
1389 #elif defined(__DragonFly__)
1390 ret = lwp_gettid();
1391 #endif
1392 return ret;
1393 }
1394
1395
1396 /***********************************************************************
1397 * server_init_process
1398 *
1399 * Start the server and create the initial socket pair.
1400 */
1401 void server_init_process(void)
1402 {
1403 obj_handle_t version;
1404 const char *env_socket = getenv( "WINESERVERSOCKET" );
1405
1406 server_pid = -1;
1407 if (env_socket)
1408 {
1409 fd_socket = atoi( env_socket );
1410 if (fcntl( fd_socket, F_SETFD, FD_CLOEXEC ) == -1)
1411 fatal_perror( "Bad server socket %d", fd_socket );
1412 unsetenv( "WINESERVERSOCKET" );
1413 }
1414 else
1415 {
1416 const char *arch = getenv( "WINEARCH" );
1417
1418 if (arch && strcmp( arch, "win32" ) && strcmp( arch, "win64" ))
1419 fatal_error( "WINEARCH set to invalid value '%s', it must be either win32 or win64.\n", arch );
1420
1421 fd_socket = server_connect();
1422 }
1423
1424 /* setup the signal mask */
1425 sigemptyset( &server_block_set );
1426 sigaddset( &server_block_set, SIGALRM );
1427 sigaddset( &server_block_set, SIGIO );
1428 sigaddset( &server_block_set, SIGINT );
1429 sigaddset( &server_block_set, SIGHUP );
1430 sigaddset( &server_block_set, SIGUSR1 );
1431 sigaddset( &server_block_set, SIGUSR2 );
1432 sigaddset( &server_block_set, SIGCHLD );
1433 pthread_sigmask( SIG_BLOCK, &server_block_set, NULL );
1434
1435 /* receive the first thread request fd on the main socket */
1436 ntdll_get_thread_data()->request_fd = receive_fd( &version );
1437
1438 #ifdef SO_PASSCRED
1439 /* now that we hopefully received the server_pid, disable SO_PASSCRED */
1440 {
1441 int enable = 0;
1442 setsockopt( fd_socket, SOL_SOCKET, SO_PASSCRED, &enable, sizeof(enable) );
1443 }
1444 #endif
1445
1446 if (version != SERVER_PROTOCOL_VERSION)
1447 server_protocol_error( "version mismatch %d/%d.\n"
1448 "Your %s binary was not upgraded correctly,\n"
1449 "or you have an older one somewhere in your PATH.\n"
1450 "Or maybe the wrong wineserver is still running?\n",
1451 version, SERVER_PROTOCOL_VERSION,
1452 (version > SERVER_PROTOCOL_VERSION) ? "wine" : "wineserver" );
1453 #if defined(__linux__) && defined(HAVE_PRCTL)
1454 /* work around Ubuntu's ptrace breakage */
1455 if (server_pid != -1) prctl( 0x59616d61 /* PR_SET_PTRACER */, server_pid );
1456 #endif
1457 }
1458
1459
1460 /***********************************************************************
1461 * server_init_process_done
1462 */
1463 void CDECL server_init_process_done( void *relay )
1464 {
1465 PEB *peb = NtCurrentTeb()->Peb;
1466 IMAGE_NT_HEADERS *nt = get_exe_nt_header();
1467 void *entry = (char *)peb->ImageBaseAddress + nt->OptionalHeader.AddressOfEntryPoint;
1468 NTSTATUS status;
1469 int suspend;
1470
1471 #ifdef __APPLE__
1472 send_server_task_port();
1473 #endif
1474 if (nt->FileHeader.Characteristics & IMAGE_FILE_LARGE_ADDRESS_AWARE) virtual_set_large_address_space();
1475
1476 /* Install signal handlers; this cannot be done earlier, since we cannot
1477 * send exceptions to the debugger before the create process event that
1478 * is sent by init_process_done */
1479 signal_init_process();
1480
1481 /* Signal the parent process to continue */
1482 SERVER_START_REQ( init_process_done )
1483 {
1484 req->module = wine_server_client_ptr( peb->ImageBaseAddress );
1485 #ifdef __i386__
1486 req->ldt_copy = wine_server_client_ptr( &__wine_ldt_copy );
1487 #endif
1488 req->entry = wine_server_client_ptr( entry );
1489 req->gui = (nt->OptionalHeader.Subsystem != IMAGE_SUBSYSTEM_WINDOWS_CUI);
1490 status = wine_server_call( req );
1491 suspend = reply->suspend;
1492 }
1493 SERVER_END_REQ;
1494
1495 assert( !status );
1496 signal_start_thread( entry, peb, suspend, relay, NtCurrentTeb() );
1497 }
1498
1499
1500 /***********************************************************************
1501 * server_init_thread
1502 *
1503 * Send an init thread request.
1504 */
1505 size_t server_init_thread( void *entry_point, BOOL *suspend )
1506 {
1507 static const char *cpu_names[] = { "x86", "x86_64", "PowerPC", "ARM", "ARM64" };
1508 const char *arch = getenv( "WINEARCH" );
1509 int ret;
1510 int reply_pipe[2];
1511 struct sigaction sig_act;
1512 stack_t ss;
1513 size_t info_size;
1514
1515 /* ignore SIGPIPE so that we get an EPIPE error instead */
1516 sig_act.sa_handler = SIG_IGN;
1517 sig_act.sa_flags = 0;
1518 sigemptyset( &sig_act.sa_mask );
1519 sigaction( SIGPIPE, &sig_act, NULL );
1520
1521 ss.ss_sp = get_signal_stack();
1522 ss.ss_size = signal_stack_size;
1523 ss.ss_flags = 0;
1524 sigaltstack( &ss, NULL );
1525
1526 /* create the server->client communication pipes */
1527 if (server_pipe( reply_pipe ) == -1) server_protocol_perror( "pipe" );
1528 if (server_pipe( ntdll_get_thread_data()->wait_fd ) == -1) server_protocol_perror( "pipe" );
1529 server_send_fd( reply_pipe[1] );
1530 server_send_fd( ntdll_get_thread_data()->wait_fd[1] );
1531 ntdll_get_thread_data()->reply_fd = reply_pipe[0];
1532 close( reply_pipe[1] );
1533
1534 SERVER_START_REQ( init_thread )
1535 {
1536 req->unix_pid = getpid();
1537 req->unix_tid = get_unix_tid();
1538 req->teb = wine_server_client_ptr( NtCurrentTeb() );
1539 req->entry = wine_server_client_ptr( entry_point );
1540 req->reply_fd = reply_pipe[1];
1541 req->wait_fd = ntdll_get_thread_data()->wait_fd[1];
1542 req->debug_level = (TRACE_ON(server) != 0);
1543 req->cpu = client_cpu;
1544 ret = wine_server_call( req );
1545 NtCurrentTeb()->ClientId.UniqueProcess = ULongToHandle(reply->pid);
1546 NtCurrentTeb()->ClientId.UniqueThread = ULongToHandle(reply->tid);
1547 info_size = reply->info_size;
1548 server_start_time = reply->server_start;
1549 server_cpus = reply->all_cpus;
1550 *suspend = reply->suspend;
1551 }
1552 SERVER_END_REQ;
1553
1554 is_wow64 = !is_win64 && (server_cpus & ((1 << CPU_x86_64) | (1 << CPU_ARM64))) != 0;
1555 ntdll_get_thread_data()->wow64_redir = is_wow64;
1556
1557 switch (ret)
1558 {
1559 case STATUS_SUCCESS:
1560 if (arch)
1561 {
1562 if (!strcmp( arch, "win32" ) && (is_win64 || is_wow64))
1563 fatal_error( "WINEARCH set to win32 but '%s' is a 64-bit installation.\n", config_dir );
1564 if (!strcmp( arch, "win64" ) && !is_win64 && !is_wow64)
1565 fatal_error( "WINEARCH set to win64 but '%s' is a 32-bit installation.\n", config_dir );
1566 }
1567 return info_size;
1568 case STATUS_INVALID_IMAGE_WIN_64:
1569 fatal_error( "'%s' is a 32-bit installation, it cannot support 64-bit applications.\n", config_dir );
1570 case STATUS_NOT_SUPPORTED:
1571 fatal_error( "'%s' is a 64-bit installation, it cannot be used with a 32-bit wineserver.\n", config_dir );
1572 case STATUS_INVALID_IMAGE_FORMAT:
1573 fatal_error( "wineserver doesn't support the %s architecture\n", cpu_names[client_cpu] );
1574 default:
1575 server_protocol_error( "init_thread failed with status %x\n", ret );
1576 }
1577 }
1578
1579
1580 /***********************************************************************
1581 * DbgUiIssueRemoteBreakin
1582 */
1583 NTSTATUS WINAPI DbgUiIssueRemoteBreakin( HANDLE process )
1584 {
1585 apc_call_t call;
1586 apc_result_t result;
1587 NTSTATUS status;
1588
1589 memset( &call, 0, sizeof(call) );
1590 call.type = APC_BREAK_PROCESS;
1591 status = server_queue_process_apc( process, &call, &result );
1592 if (status) return status;
1593 return result.break_process.status;
1594 }
1595
1596
1597 /******************************************************************************
1598 * NtDuplicateObject
1599 */
1600 NTSTATUS WINAPI NtDuplicateObject( HANDLE source_process, HANDLE source, HANDLE dest_process, HANDLE *dest,
1601 ACCESS_MASK access, ULONG attributes, ULONG options )
1602 {
1603 NTSTATUS ret;
1604
1605 SERVER_START_REQ( dup_handle )
1606 {
1607 req->src_process = wine_server_obj_handle( source_process );
1608 req->src_handle = wine_server_obj_handle( source );
1609 req->dst_process = wine_server_obj_handle( dest_process );
1610 req->access = access;
1611 req->attributes = attributes;
1612 req->options = options;
1613 if (!(ret = wine_server_call( req )))
1614 {
1615 if (dest) *dest = wine_server_ptr_handle( reply->handle );
1616 if (reply->closed && reply->self)
1617 {
1618 int fd = remove_fd_from_cache( source );
1619 if (fd != -1) close( fd );
1620 }
1621 }
1622 }
1623 SERVER_END_REQ;
1624 return ret;
1625 }
1626
1627
1628 /**************************************************************************
1629 * NtClose
1630 */
1631 NTSTATUS WINAPI NtClose( HANDLE handle )
1632 {
1633 HANDLE port;
1634 NTSTATUS ret;
1635 int fd = remove_fd_from_cache( handle );
1636
1637 SERVER_START_REQ( close_handle )
1638 {
1639 req->handle = wine_server_obj_handle( handle );
1640 ret = wine_server_call( req );
1641 }
1642 SERVER_END_REQ;
1643 if (fd != -1) close( fd );
1644
1645 if (ret != STATUS_INVALID_HANDLE || !handle) return ret;
1646 if (!NtCurrentTeb()->Peb->BeingDebugged) return ret;
1647 if (!NtQueryInformationProcess( NtCurrentProcess(), ProcessDebugPort, &port, sizeof(port), NULL) && port)
1648 {
1649 NtCurrentTeb()->ExceptionCode = ret;
1650 pKiRaiseUserExceptionDispatcher();
1651 }
1652 return ret;
1653 }
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