2 * Wine server communication
4 * Copyright (C) 1998 Alexandre Julliard
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.
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.
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
22 #include "wine/port.h"
35 #include <sys/types.h>
36 #ifdef HAVE_SYS_SOCKET_H
37 # include <sys/socket.h>
39 #ifdef HAVE_SYS_WAIT_H
45 #ifdef HAVE_SYS_MMAN_H
48 #ifdef HAVE_SYS_PRCTL_H
49 # include <sys/prctl.h>
51 #ifdef HAVE_SYS_STAT_H
52 # include <sys/stat.h>
58 #include <sys/ucontext.h>
66 #define WIN32_NO_STATUS
67 #include "wine/library.h"
68 #include "wine/server.h"
69 #include "wine/debug.h"
70 #include "ntdll_misc.h"
72 WINE_DEFAULT_DEBUG_CHANNEL(server
);
74 /* Some versions of glibc don't define this */
79 #ifndef MSG_CMSG_CLOEXEC
80 #define MSG_CMSG_CLOEXEC 0
83 #define SOCKETNAME "socket" /* name of the socket file */
84 #define LOCKNAME "lock" /* name of the lock file */
87 static const enum cpu_type client_cpu
= CPU_x86
;
88 #elif defined(__x86_64__)
89 static const enum cpu_type client_cpu
= CPU_x86_64
;
90 #elif defined(__ALPHA__)
91 static const enum cpu_type client_cpu
= CPU_ALPHA
;
92 #elif defined(__powerpc__)
93 static const enum cpu_type client_cpu
= CPU_POWERPC
;
94 #elif defined(__sparc__)
95 static const enum cpu_type client_cpu
= CPU_SPARC
;
96 #elif defined(__arm__)
97 static const enum cpu_type client_cpu
= CPU_ARM
;
99 #error Unsupported CPU
102 unsigned int server_cpus
= 0;
103 int is_wow64
= FALSE
;
105 timeout_t server_start_time
= 0; /* time of server startup */
107 sigset_t server_block_set
; /* signals to block during server calls */
108 static int fd_socket
= -1; /* socket to exchange file descriptors with the server */
109 static pid_t server_pid
;
111 static RTL_CRITICAL_SECTION fd_cache_section
;
112 static RTL_CRITICAL_SECTION_DEBUG critsect_debug
=
114 0, 0, &fd_cache_section
,
115 { &critsect_debug
.ProcessLocksList
, &critsect_debug
.ProcessLocksList
},
116 0, 0, { (DWORD_PTR
)(__FILE__
": fd_cache_section") }
118 static RTL_CRITICAL_SECTION fd_cache_section
= { &critsect_debug
, -1, 0, 0, 0, 0 };
122 static void fatal_error( const char *err
, ... ) __attribute__((noreturn
, format(printf
,1,2)));
123 static void fatal_perror( const char *err
, ... ) __attribute__((noreturn
, format(printf
,1,2)));
124 static void server_connect_error( const char *serverdir
) __attribute__((noreturn
));
127 /* die on a fatal error; use only during initialization */
128 static void fatal_error( const char *err
, ... )
132 va_start( args
, err
);
133 fprintf( stderr
, "wine: " );
134 vfprintf( stderr
, err
, args
);
139 /* die on a fatal error; use only during initialization */
140 static void fatal_perror( const char *err
, ... )
144 va_start( args
, err
);
145 fprintf( stderr
, "wine: " );
146 vfprintf( stderr
, err
, args
);
153 /***********************************************************************
154 * server_protocol_error
156 void server_protocol_error( const char *err
, ... )
160 va_start( args
, err
);
161 fprintf( stderr
, "wine client error:%x: ", GetCurrentThreadId() );
162 vfprintf( stderr
, err
, args
);
168 /***********************************************************************
169 * server_protocol_perror
171 void server_protocol_perror( const char *err
)
173 fprintf( stderr
, "wine client error:%x: ", GetCurrentThreadId() );
179 /***********************************************************************
182 * Send a request to the server.
184 static unsigned int send_request( const struct __server_request_info
*req
)
189 if (!req
->u
.req
.request_header
.request_size
)
191 if ((ret
= write( ntdll_get_thread_data()->request_fd
, &req
->u
.req
,
192 sizeof(req
->u
.req
) )) == sizeof(req
->u
.req
)) return STATUS_SUCCESS
;
197 struct iovec vec
[__SERVER_MAX_DATA
+1];
199 vec
[0].iov_base
= (void *)&req
->u
.req
;
200 vec
[0].iov_len
= sizeof(req
->u
.req
);
201 for (i
= 0; i
< req
->data_count
; i
++)
203 vec
[i
+1].iov_base
= (void *)req
->data
[i
].ptr
;
204 vec
[i
+1].iov_len
= req
->data
[i
].size
;
206 if ((ret
= writev( ntdll_get_thread_data()->request_fd
, vec
, i
+1 )) ==
207 req
->u
.req
.request_header
.request_size
+ sizeof(req
->u
.req
)) return STATUS_SUCCESS
;
210 if (ret
>= 0) server_protocol_error( "partial write %d\n", ret
);
211 if (errno
== EPIPE
) abort_thread(0);
212 if (errno
== EFAULT
) return STATUS_ACCESS_VIOLATION
;
213 server_protocol_perror( "write" );
217 /***********************************************************************
220 * Read data from the reply buffer; helper for wait_reply.
222 static void read_reply_data( void *buffer
, size_t size
)
228 if ((ret
= read( ntdll_get_thread_data()->reply_fd
, buffer
, size
)) > 0)
230 if (!(size
-= ret
)) return;
231 buffer
= (char *)buffer
+ ret
;
235 if (errno
== EINTR
) continue;
236 if (errno
== EPIPE
) break;
237 server_protocol_perror("read");
239 /* the server closed the connection; time to die... */
244 /***********************************************************************
247 * Wait for a reply from the server.
249 static inline unsigned int wait_reply( struct __server_request_info
*req
)
251 read_reply_data( &req
->u
.reply
, sizeof(req
->u
.reply
) );
252 if (req
->u
.reply
.reply_header
.reply_size
)
253 read_reply_data( req
->reply_data
, req
->u
.reply
.reply_header
.reply_size
);
254 return req
->u
.reply
.reply_header
.error
;
258 /***********************************************************************
259 * wine_server_call (NTDLL.@)
261 * Perform a server call.
264 * req_ptr [I/O] Function dependent data
267 * Depends on server function being called, but usually an NTSTATUS code.
270 * Use the SERVER_START_REQ and SERVER_END_REQ to help you fill out the
271 * server request structure for the particular call. E.g:
272 *| SERVER_START_REQ( event_op )
274 *| req->handle = handle;
275 *| req->op = SET_EVENT;
276 *| ret = wine_server_call( req );
280 unsigned int wine_server_call( void *req_ptr
)
282 struct __server_request_info
* const req
= req_ptr
;
286 pthread_sigmask( SIG_BLOCK
, &server_block_set
, &old_set
);
287 ret
= send_request( req
);
288 if (!ret
) ret
= wait_reply( req
);
289 pthread_sigmask( SIG_SETMASK
, &old_set
, NULL
);
294 /***********************************************************************
295 * server_enter_uninterrupted_section
297 void server_enter_uninterrupted_section( RTL_CRITICAL_SECTION
*cs
, sigset_t
*sigset
)
299 pthread_sigmask( SIG_BLOCK
, &server_block_set
, sigset
);
300 RtlEnterCriticalSection( cs
);
304 /***********************************************************************
305 * server_leave_uninterrupted_section
307 void server_leave_uninterrupted_section( RTL_CRITICAL_SECTION
*cs
, sigset_t
*sigset
)
309 RtlLeaveCriticalSection( cs
);
310 pthread_sigmask( SIG_SETMASK
, sigset
, NULL
);
314 /***********************************************************************
315 * wine_server_send_fd (NTDLL.@)
317 * Send a file descriptor to the server.
320 * fd [I] file descriptor to send
325 void CDECL
wine_server_send_fd( int fd
)
328 struct msghdr msghdr
;
332 #ifdef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
333 msghdr
.msg_accrights
= (void *)&fd
;
334 msghdr
.msg_accrightslen
= sizeof(fd
);
335 #else /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
336 char cmsg_buffer
[256];
337 struct cmsghdr
*cmsg
;
338 msghdr
.msg_control
= cmsg_buffer
;
339 msghdr
.msg_controllen
= sizeof(cmsg_buffer
);
340 msghdr
.msg_flags
= 0;
341 cmsg
= CMSG_FIRSTHDR( &msghdr
);
342 cmsg
->cmsg_len
= CMSG_LEN( sizeof(fd
) );
343 cmsg
->cmsg_level
= SOL_SOCKET
;
344 cmsg
->cmsg_type
= SCM_RIGHTS
;
345 *(int *)CMSG_DATA(cmsg
) = fd
;
346 msghdr
.msg_controllen
= cmsg
->cmsg_len
;
347 #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
349 msghdr
.msg_name
= NULL
;
350 msghdr
.msg_namelen
= 0;
351 msghdr
.msg_iov
= &vec
;
352 msghdr
.msg_iovlen
= 1;
354 vec
.iov_base
= (void *)&data
;
355 vec
.iov_len
= sizeof(data
);
357 data
.tid
= GetCurrentThreadId();
362 if ((ret
= sendmsg( fd_socket
, &msghdr
, 0 )) == sizeof(data
)) return;
363 if (ret
>= 0) server_protocol_error( "partial write %d\n", ret
);
364 if (errno
== EINTR
) continue;
365 if (errno
== EPIPE
) abort_thread(0);
366 server_protocol_perror( "sendmsg" );
371 /***********************************************************************
374 * Receive a file descriptor passed from the server.
376 static int receive_fd( obj_handle_t
*handle
)
379 struct msghdr msghdr
;
382 #ifdef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
383 msghdr
.msg_accrights
= (void *)&fd
;
384 msghdr
.msg_accrightslen
= sizeof(fd
);
385 #else /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
386 char cmsg_buffer
[256];
387 msghdr
.msg_control
= cmsg_buffer
;
388 msghdr
.msg_controllen
= sizeof(cmsg_buffer
);
389 msghdr
.msg_flags
= 0;
390 #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
392 msghdr
.msg_name
= NULL
;
393 msghdr
.msg_namelen
= 0;
394 msghdr
.msg_iov
= &vec
;
395 msghdr
.msg_iovlen
= 1;
396 vec
.iov_base
= (void *)handle
;
397 vec
.iov_len
= sizeof(*handle
);
401 if ((ret
= recvmsg( fd_socket
, &msghdr
, MSG_CMSG_CLOEXEC
)) > 0)
403 #ifndef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
404 struct cmsghdr
*cmsg
;
405 for (cmsg
= CMSG_FIRSTHDR( &msghdr
); cmsg
; cmsg
= CMSG_NXTHDR( &msghdr
, cmsg
))
407 if (cmsg
->cmsg_level
!= SOL_SOCKET
) continue;
408 if (cmsg
->cmsg_type
== SCM_RIGHTS
) fd
= *(int *)CMSG_DATA(cmsg
);
409 #ifdef SCM_CREDENTIALS
410 else if (cmsg
->cmsg_type
== SCM_CREDENTIALS
)
412 struct ucred
*ucred
= (struct ucred
*)CMSG_DATA(cmsg
);
413 server_pid
= ucred
->pid
;
417 #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
418 if (fd
!= -1) fcntl( fd
, F_SETFD
, FD_CLOEXEC
); /* in case MSG_CMSG_CLOEXEC is not supported */
422 if (errno
== EINTR
) continue;
423 if (errno
== EPIPE
) break;
424 server_protocol_perror("recvmsg");
426 /* the server closed the connection; time to die... */
431 /***********************************************************************/
432 /* fd cache support */
434 struct fd_cache_entry
437 enum server_fd_type type
: 6;
438 unsigned int access
: 2;
439 unsigned int options
: 24;
442 #define FD_CACHE_BLOCK_SIZE (65536 / sizeof(struct fd_cache_entry))
443 #define FD_CACHE_ENTRIES 128
445 static struct fd_cache_entry
*fd_cache
[FD_CACHE_ENTRIES
];
446 static struct fd_cache_entry fd_cache_initial_block
[FD_CACHE_BLOCK_SIZE
];
448 static inline unsigned int handle_to_index( HANDLE handle
, unsigned int *entry
)
450 unsigned int idx
= (wine_server_obj_handle(handle
) >> 2) - 1;
451 *entry
= idx
/ FD_CACHE_BLOCK_SIZE
;
452 return idx
% FD_CACHE_BLOCK_SIZE
;
456 /***********************************************************************
459 * Caller must hold fd_cache_section.
461 static int add_fd_to_cache( HANDLE handle
, int fd
, enum server_fd_type type
,
462 unsigned int access
, unsigned int options
)
464 unsigned int entry
, idx
= handle_to_index( handle
, &entry
);
467 if (entry
>= FD_CACHE_ENTRIES
)
469 FIXME( "too many allocated handles, not caching %p\n", handle
);
473 if (!fd_cache
[entry
]) /* do we need to allocate a new block of entries? */
475 if (!entry
) fd_cache
[0] = fd_cache_initial_block
;
478 void *ptr
= wine_anon_mmap( NULL
, FD_CACHE_BLOCK_SIZE
* sizeof(struct fd_cache_entry
),
479 PROT_READ
| PROT_WRITE
, 0 );
480 if (ptr
== MAP_FAILED
) return 0;
481 fd_cache
[entry
] = ptr
;
484 /* store fd+1 so that 0 can be used as the unset value */
485 prev_fd
= interlocked_xchg( &fd_cache
[entry
][idx
].fd
, fd
+ 1 ) - 1;
486 fd_cache
[entry
][idx
].type
= type
;
487 fd_cache
[entry
][idx
].access
= access
;
488 fd_cache
[entry
][idx
].options
= options
;
489 if (prev_fd
!= -1) close( prev_fd
);
494 /***********************************************************************
497 * Caller must hold fd_cache_section.
499 static inline int get_cached_fd( HANDLE handle
, enum server_fd_type
*type
,
500 unsigned int *access
, unsigned int *options
)
502 unsigned int entry
, idx
= handle_to_index( handle
, &entry
);
505 if (entry
< FD_CACHE_ENTRIES
&& fd_cache
[entry
])
507 fd
= fd_cache
[entry
][idx
].fd
- 1;
508 if (type
) *type
= fd_cache
[entry
][idx
].type
;
509 if (access
) *access
= fd_cache
[entry
][idx
].access
;
510 if (options
) *options
= fd_cache
[entry
][idx
].options
;
516 /***********************************************************************
517 * server_remove_fd_from_cache
519 int server_remove_fd_from_cache( HANDLE handle
)
521 unsigned int entry
, idx
= handle_to_index( handle
, &entry
);
524 if (entry
< FD_CACHE_ENTRIES
&& fd_cache
[entry
])
525 fd
= interlocked_xchg( &fd_cache
[entry
][idx
].fd
, 0 ) - 1;
531 /***********************************************************************
534 * The returned unix_fd should be closed iff needs_close is non-zero.
536 int server_get_unix_fd( HANDLE handle
, unsigned int wanted_access
, int *unix_fd
,
537 int *needs_close
, enum server_fd_type
*type
, unsigned int *options
)
540 obj_handle_t fd_handle
;
542 unsigned int access
= 0;
546 wanted_access
&= FILE_READ_DATA
| FILE_WRITE_DATA
;
548 server_enter_uninterrupted_section( &fd_cache_section
, &sigset
);
550 fd
= get_cached_fd( handle
, type
, &access
, options
);
551 if (fd
!= -1) goto done
;
553 SERVER_START_REQ( get_handle_fd
)
555 req
->handle
= wine_server_obj_handle( handle
);
556 if (!(ret
= wine_server_call( req
)))
558 if (type
) *type
= reply
->type
;
559 if (options
) *options
= reply
->options
;
560 access
= reply
->access
;
561 if ((fd
= receive_fd( &fd_handle
)) != -1)
563 assert( wine_server_ptr_handle(fd_handle
) == handle
);
564 *needs_close
= (!reply
->cacheable
||
565 !add_fd_to_cache( handle
, fd
, reply
->type
,
566 reply
->access
, reply
->options
));
568 else ret
= STATUS_TOO_MANY_OPENED_FILES
;
574 server_leave_uninterrupted_section( &fd_cache_section
, &sigset
);
575 if (!ret
&& ((access
& wanted_access
) != wanted_access
))
577 ret
= STATUS_ACCESS_DENIED
;
578 if (*needs_close
) close( fd
);
580 if (!ret
) *unix_fd
= fd
;
585 /***********************************************************************
586 * wine_server_fd_to_handle (NTDLL.@)
588 * Allocate a file handle for a Unix file descriptor.
591 * fd [I] Unix file descriptor.
592 * access [I] Win32 access flags.
593 * attributes [I] Object attributes.
594 * handle [O] Address where Wine file handle will be stored.
599 int CDECL
wine_server_fd_to_handle( int fd
, unsigned int access
, unsigned int attributes
, HANDLE
*handle
)
604 wine_server_send_fd( fd
);
606 SERVER_START_REQ( alloc_file_handle
)
608 req
->access
= access
;
609 req
->attributes
= attributes
;
611 if (!(ret
= wine_server_call( req
))) *handle
= wine_server_ptr_handle( reply
->handle
);
618 /***********************************************************************
619 * wine_server_handle_to_fd (NTDLL.@)
621 * Retrieve the file descriptor corresponding to a file handle.
624 * handle [I] Wine file handle.
625 * access [I] Win32 file access rights requested.
626 * unix_fd [O] Address where Unix file descriptor will be stored.
627 * options [O] Address where the file open options will be stored. Optional.
632 int CDECL
wine_server_handle_to_fd( HANDLE handle
, unsigned int access
, int *unix_fd
,
633 unsigned int *options
)
635 int needs_close
, ret
= server_get_unix_fd( handle
, access
, unix_fd
, &needs_close
, NULL
, options
);
637 if (!ret
&& !needs_close
)
639 if ((*unix_fd
= dup(*unix_fd
)) == -1) ret
= FILE_GetNtStatus();
645 /***********************************************************************
646 * wine_server_release_fd (NTDLL.@)
648 * Release the Unix file descriptor returned by wine_server_handle_to_fd.
651 * handle [I] Wine file handle.
652 * unix_fd [I] Unix file descriptor to release.
657 void CDECL
wine_server_release_fd( HANDLE handle
, int unix_fd
)
663 /***********************************************************************
666 * Create a pipe for communicating with the server.
668 int server_pipe( int fd
[2] )
672 static int have_pipe2
= 1;
676 if (!(ret
= pipe2( fd
, O_CLOEXEC
))) return ret
;
677 if (errno
== ENOSYS
|| errno
== EINVAL
) have_pipe2
= 0; /* don't try again */
680 if (!(ret
= pipe( fd
)))
682 fcntl( fd
[0], F_SETFD
, FD_CLOEXEC
);
683 fcntl( fd
[1], F_SETFD
, FD_CLOEXEC
);
689 /***********************************************************************
692 * Start a new wine server.
694 static void start_server(void)
696 static int started
; /* we only try once */
698 static char wineserver
[] = "server/wineserver";
699 static char debug
[] = "-d";
705 if (pid
== -1) fatal_perror( "fork" );
708 argv
[0] = wineserver
;
709 argv
[1] = TRACE_ON(server
) ? debug
: NULL
;
711 wine_exec_wine_binary( argv
[0], argv
, getenv("WINESERVER") );
712 fatal_error( "could not exec wineserver\n" );
714 waitpid( pid
, &status
, 0 );
715 status
= WIFEXITED(status
) ? WEXITSTATUS(status
) : 1;
716 if (status
== 2) return; /* server lock held by someone else, will retry later */
717 if (status
) exit(status
); /* server failed */
723 /***********************************************************************
726 * Setup the wine configuration dir.
728 static void setup_config_dir(void)
730 const char *p
, *config_dir
= wine_get_config_dir();
732 if (chdir( config_dir
) == -1)
734 if (errno
!= ENOENT
) fatal_perror( "chdir to %s\n", config_dir
);
736 if ((p
= strrchr( config_dir
, '/' )) && p
!= config_dir
)
741 if (!(tmp_dir
= malloc( p
+ 1 - config_dir
))) fatal_error( "out of memory\n" );
742 memcpy( tmp_dir
, config_dir
, p
- config_dir
);
743 tmp_dir
[p
- config_dir
] = 0;
744 if (!stat( tmp_dir
, &st
) && st
.st_uid
!= getuid())
745 fatal_error( "'%s' is not owned by you, refusing to create a configuration directory there\n",
750 mkdir( config_dir
, 0777 );
751 if (chdir( config_dir
) == -1) fatal_perror( "chdir to %s\n", config_dir
);
753 if ((p
= getenv( "WINEARCH" )) && !strcmp( p
, "win32" ))
755 /* force creation of a 32-bit prefix */
756 int fd
= open( "system.reg", O_WRONLY
| O_CREAT
| O_EXCL
, 0666 );
759 static const char regfile
[] = "WINE REGISTRY Version 2\n\n#arch=win32\n";
760 write( fd
, regfile
, sizeof(regfile
) - 1 );
764 MESSAGE( "wine: created the configuration directory '%s'\n", config_dir
);
767 if (mkdir( "dosdevices", 0777 ) == -1)
769 if (errno
== EEXIST
) return;
770 fatal_perror( "cannot create %s/dosdevices\n", config_dir
);
773 /* create the drive symlinks */
775 mkdir( "drive_c", 0777 );
776 symlink( "../drive_c", "dosdevices/c:" );
777 symlink( "/", "dosdevices/z:" );
781 /***********************************************************************
782 * server_connect_error
784 * Try to display a meaningful explanation of why we couldn't connect
787 static void server_connect_error( const char *serverdir
)
792 if ((fd
= open( LOCKNAME
, O_WRONLY
)) == -1)
793 fatal_error( "for some mysterious reason, the wine server never started.\n" );
796 fl
.l_whence
= SEEK_SET
;
799 if (fcntl( fd
, F_GETLK
, &fl
) != -1)
801 if (fl
.l_type
== F_WRLCK
) /* the file is locked */
802 fatal_error( "a wine server seems to be running, but I cannot connect to it.\n"
803 " You probably need to kill that process (it might be pid %d).\n",
805 fatal_error( "for some mysterious reason, the wine server failed to run.\n" );
807 fatal_error( "the file system of '%s' doesn't support locks,\n"
808 " and there is a 'socket' file in that directory that prevents wine from starting.\n"
809 " You should make sure no wine server is running, remove that file and try again.\n",
814 /***********************************************************************
817 * Attempt to connect to an existing server socket.
818 * We need to be in the server directory already.
820 static int server_connect(void)
822 const char *serverdir
;
823 struct sockaddr_un addr
;
825 int s
, slen
, retry
, fd_cwd
;
827 /* retrieve the current directory */
828 fd_cwd
= open( ".", O_RDONLY
);
829 if (fd_cwd
!= -1) fcntl( fd_cwd
, F_SETFD
, 1 ); /* set close on exec flag */
832 serverdir
= wine_get_server_dir();
834 /* chdir to the server directory */
835 if (chdir( serverdir
) == -1)
837 if (errno
!= ENOENT
) fatal_perror( "chdir to %s", serverdir
);
839 if (chdir( serverdir
) == -1) fatal_perror( "chdir to %s", serverdir
);
842 /* make sure we are at the right place */
843 if (stat( ".", &st
) == -1) fatal_perror( "stat %s", serverdir
);
844 if (st
.st_uid
!= getuid()) fatal_error( "'%s' is not owned by you\n", serverdir
);
845 if (st
.st_mode
& 077) fatal_error( "'%s' must not be accessible by other users\n", serverdir
);
847 for (retry
= 0; retry
< 6; retry
++)
849 /* if not the first try, wait a bit to leave the previous server time to exit */
852 usleep( 100000 * retry
* retry
);
854 if (lstat( SOCKETNAME
, &st
) == -1) continue; /* still no socket, wait a bit more */
856 else if (lstat( SOCKETNAME
, &st
) == -1) /* check for an already existing socket */
858 if (errno
!= ENOENT
) fatal_perror( "lstat %s/%s", serverdir
, SOCKETNAME
);
860 if (lstat( SOCKETNAME
, &st
) == -1) continue; /* still no socket, wait a bit more */
863 /* make sure the socket is sane (ISFIFO needed for Solaris) */
864 if (!S_ISSOCK(st
.st_mode
) && !S_ISFIFO(st
.st_mode
))
865 fatal_error( "'%s/%s' is not a socket\n", serverdir
, SOCKETNAME
);
866 if (st
.st_uid
!= getuid())
867 fatal_error( "'%s/%s' is not owned by you\n", serverdir
, SOCKETNAME
);
869 /* try to connect to it */
870 addr
.sun_family
= AF_UNIX
;
871 strcpy( addr
.sun_path
, SOCKETNAME
);
872 slen
= sizeof(addr
) - sizeof(addr
.sun_path
) + strlen(addr
.sun_path
) + 1;
873 #ifdef HAVE_STRUCT_SOCKADDR_UN_SUN_LEN
876 if ((s
= socket( AF_UNIX
, SOCK_STREAM
, 0 )) == -1) fatal_perror( "socket" );
877 if (connect( s
, (struct sockaddr
*)&addr
, slen
) != -1)
879 /* switch back to the starting directory */
885 fcntl( s
, F_SETFD
, 1 ); /* set close on exec flag */
890 server_connect_error( serverdir
);
895 #include <mach/mach.h>
896 #include <mach/mach_error.h>
897 #include <servers/bootstrap.h>
899 /* send our task port to the server */
900 static void send_server_task_port(void)
902 mach_port_t bootstrap_port
, wineserver_port
;
906 mach_msg_header_t header
;
907 mach_msg_body_t body
;
908 mach_msg_port_descriptor_t task_port
;
911 if (task_get_bootstrap_port(mach_task_self(), &bootstrap_port
) != KERN_SUCCESS
) return;
913 kret
= bootstrap_look_up(bootstrap_port
, (char*)wine_get_server_dir(), &wineserver_port
);
914 if (kret
!= KERN_SUCCESS
)
915 fatal_error( "cannot find the server port: 0x%08x\n", kret
);
917 mach_port_deallocate(mach_task_self(), bootstrap_port
);
919 msg
.header
.msgh_bits
= MACH_MSGH_BITS(MACH_MSG_TYPE_COPY_SEND
, 0) | MACH_MSGH_BITS_COMPLEX
;
920 msg
.header
.msgh_size
= sizeof(msg
);
921 msg
.header
.msgh_remote_port
= wineserver_port
;
922 msg
.header
.msgh_local_port
= MACH_PORT_NULL
;
924 msg
.body
.msgh_descriptor_count
= 1;
925 msg
.task_port
.name
= mach_task_self();
926 msg
.task_port
.disposition
= MACH_MSG_TYPE_COPY_SEND
;
927 msg
.task_port
.type
= MACH_MSG_PORT_DESCRIPTOR
;
929 kret
= mach_msg_send(&msg
.header
);
930 if (kret
!= KERN_SUCCESS
)
931 server_protocol_error( "mach_msg_send failed: 0x%08x\n", kret
);
933 mach_port_deallocate(mach_task_self(), wineserver_port
);
935 #endif /* __APPLE__ */
938 /***********************************************************************
941 * Retrieve the Unix tid to use on the server side for the current thread.
943 static int get_unix_tid(void)
946 #if defined(linux) && defined(__i386__)
947 ret
= syscall(224 /*SYS_gettid*/);
948 #elif defined(linux) && defined(__x86_64__)
949 ret
= syscall(186 /*SYS_gettid*/);
951 ret
= pthread_self();
952 #elif defined(__APPLE__)
953 ret
= mach_thread_self();
954 mach_port_deallocate(mach_task_self(), ret
);
955 #elif defined(__FreeBSD__)
964 /***********************************************************************
965 * server_init_process
967 * Start the server and create the initial socket pair.
969 void server_init_process(void)
971 obj_handle_t version
;
972 const char *env_socket
= getenv( "WINESERVERSOCKET" );
977 fd_socket
= atoi( env_socket
);
978 if (fcntl( fd_socket
, F_SETFD
, 1 ) == -1)
979 fatal_perror( "Bad server socket %d", fd_socket
);
980 unsetenv( "WINESERVERSOCKET" );
982 else fd_socket
= server_connect();
984 /* setup the signal mask */
985 sigemptyset( &server_block_set
);
986 sigaddset( &server_block_set
, SIGALRM
);
987 sigaddset( &server_block_set
, SIGIO
);
988 sigaddset( &server_block_set
, SIGINT
);
989 sigaddset( &server_block_set
, SIGHUP
);
990 sigaddset( &server_block_set
, SIGUSR1
);
991 sigaddset( &server_block_set
, SIGUSR2
);
992 sigaddset( &server_block_set
, SIGCHLD
);
993 pthread_sigmask( SIG_BLOCK
, &server_block_set
, NULL
);
995 /* receive the first thread request fd on the main socket */
997 if (server_pid
== -1)
1000 setsockopt( fd_socket
, SOL_SOCKET
, SO_PASSCRED
, &enable
, sizeof(enable
) );
1001 ntdll_get_thread_data()->request_fd
= receive_fd( &version
);
1003 setsockopt( fd_socket
, SOL_SOCKET
, SO_PASSCRED
, &enable
, sizeof(enable
) );
1007 ntdll_get_thread_data()->request_fd
= receive_fd( &version
);
1009 if (version
!= SERVER_PROTOCOL_VERSION
)
1010 server_protocol_error( "version mismatch %d/%d.\n"
1011 "Your %s binary was not upgraded correctly,\n"
1012 "or you have an older one somewhere in your PATH.\n"
1013 "Or maybe the wrong wineserver is still running?\n",
1014 version
, SERVER_PROTOCOL_VERSION
,
1015 (version
> SERVER_PROTOCOL_VERSION
) ? "wine" : "wineserver" );
1017 send_server_task_port();
1019 #if defined(__linux__) && defined(HAVE_PRCTL)
1020 /* work around Ubuntu's ptrace breakage */
1021 if (server_pid
!= -1) prctl( 0x59616d61 /* PR_SET_PTRACER */, server_pid
);
1026 /***********************************************************************
1027 * server_init_process_done
1029 NTSTATUS
server_init_process_done(void)
1031 PEB
*peb
= NtCurrentTeb()->Peb
;
1032 IMAGE_NT_HEADERS
*nt
= RtlImageNtHeader( peb
->ImageBaseAddress
);
1035 /* Install signal handlers; this cannot be done earlier, since we cannot
1036 * send exceptions to the debugger before the create process event that
1037 * is sent by REQ_INIT_PROCESS_DONE.
1038 * We do need the handlers in place by the time the request is over, so
1039 * we set them up here. If we segfault between here and the server call
1040 * something is very wrong... */
1041 signal_init_process();
1043 /* Signal the parent process to continue */
1044 SERVER_START_REQ( init_process_done
)
1046 req
->module
= wine_server_client_ptr( peb
->ImageBaseAddress
);
1048 req
->ldt_copy
= wine_server_client_ptr( &wine_ldt_copy
);
1050 req
->entry
= wine_server_client_ptr( (char *)peb
->ImageBaseAddress
+ nt
->OptionalHeader
.AddressOfEntryPoint
);
1051 req
->gui
= (nt
->OptionalHeader
.Subsystem
!= IMAGE_SUBSYSTEM_WINDOWS_CUI
);
1052 status
= wine_server_call( req
);
1060 /***********************************************************************
1061 * server_init_thread
1063 * Send an init thread request. Return 0 if OK.
1065 size_t server_init_thread( void *entry_point
)
1067 static const int is_win64
= (sizeof(void *) > sizeof(int));
1068 const char *arch
= getenv( "WINEARCH" );
1071 struct sigaction sig_act
;
1074 sig_act
.sa_handler
= SIG_IGN
;
1075 sig_act
.sa_flags
= 0;
1076 sigemptyset( &sig_act
.sa_mask
);
1078 /* ignore SIGPIPE so that we get an EPIPE error instead */
1079 sigaction( SIGPIPE
, &sig_act
, NULL
);
1080 /* automatic child reaping to avoid zombies */
1082 sig_act
.sa_flags
|= SA_NOCLDWAIT
;
1084 sigaction( SIGCHLD
, &sig_act
, NULL
);
1086 /* create the server->client communication pipes */
1087 if (server_pipe( reply_pipe
) == -1) server_protocol_perror( "pipe" );
1088 if (server_pipe( ntdll_get_thread_data()->wait_fd
) == -1) server_protocol_perror( "pipe" );
1089 wine_server_send_fd( reply_pipe
[1] );
1090 wine_server_send_fd( ntdll_get_thread_data()->wait_fd
[1] );
1091 ntdll_get_thread_data()->reply_fd
= reply_pipe
[0];
1092 close( reply_pipe
[1] );
1094 SERVER_START_REQ( init_thread
)
1096 req
->unix_pid
= getpid();
1097 req
->unix_tid
= get_unix_tid();
1098 req
->teb
= wine_server_client_ptr( NtCurrentTeb() );
1099 req
->entry
= wine_server_client_ptr( entry_point
);
1100 req
->reply_fd
= reply_pipe
[1];
1101 req
->wait_fd
= ntdll_get_thread_data()->wait_fd
[1];
1102 req
->debug_level
= (TRACE_ON(server
) != 0);
1103 req
->cpu
= client_cpu
;
1104 ret
= wine_server_call( req
);
1105 NtCurrentTeb()->ClientId
.UniqueProcess
= ULongToHandle(reply
->pid
);
1106 NtCurrentTeb()->ClientId
.UniqueThread
= ULongToHandle(reply
->tid
);
1107 info_size
= reply
->info_size
;
1108 server_start_time
= reply
->server_start
;
1109 server_cpus
= reply
->all_cpus
;
1113 is_wow64
= !is_win64
&& (server_cpus
& (1 << CPU_x86_64
)) != 0;
1114 ntdll_get_thread_data()->wow64_redir
= is_wow64
;
1118 case STATUS_SUCCESS
:
1121 if (!strcmp( arch
, "win32" ) && (is_win64
|| is_wow64
))
1122 fatal_error( "WINEARCH set to win32 but '%s' is a 64-bit installation.\n",
1123 wine_get_config_dir() );
1124 if (!strcmp( arch
, "win64" ) && !is_wow64
)
1125 fatal_error( "WINEARCH set to win64 but '%s' is a 32-bit installation.\n",
1126 wine_get_config_dir() );
1129 case STATUS_NOT_REGISTRY_FILE
:
1130 fatal_error( "'%s' is a 32-bit installation, it cannot support 64-bit applications.\n",
1131 wine_get_config_dir() );
1132 case STATUS_NOT_SUPPORTED
:
1134 fatal_error( "wineserver is 32-bit, it cannot support 64-bit applications.\n" );
1136 fatal_error( "'%s' is a 64-bit installation, it cannot be used with a 32-bit wineserver.\n",
1137 wine_get_config_dir() );
1139 server_protocol_error( "init_thread failed with status %x\n", ret
);