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_STAT_H
49 # include <sys/stat.h>
59 #define WIN32_NO_STATUS
60 #include "wine/library.h"
61 #include "wine/pthread.h"
62 #include "wine/server.h"
63 #include "wine/debug.h"
64 #include "ntdll_misc.h"
66 WINE_DEFAULT_DEBUG_CHANNEL(server
);
68 /* Some versions of glibc don't define this */
73 #define SOCKETNAME "socket" /* name of the socket file */
74 #define LOCKNAME "lock" /* name of the lock file */
76 #ifndef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
77 /* data structure used to pass an fd with sendmsg/recvmsg */
82 size_t len
; /* size of structure */
83 int level
; /* SOL_SOCKET */
84 int type
; /* SCM_RIGHTS */
86 int fd
; /* fd to pass */
88 #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
90 timeout_t server_start_time
= 0; /* time of server startup */
92 extern struct wine_pthread_functions pthread_functions
;
94 sigset_t server_block_set
; /* signals to block during server calls */
95 static int fd_socket
= -1; /* socket to exchange file descriptors with the server */
97 static RTL_CRITICAL_SECTION fd_cache_section
;
98 static RTL_CRITICAL_SECTION_DEBUG critsect_debug
=
100 0, 0, &fd_cache_section
,
101 { &critsect_debug
.ProcessLocksList
, &critsect_debug
.ProcessLocksList
},
102 0, 0, { (DWORD_PTR
)(__FILE__
": fd_cache_section") }
104 static RTL_CRITICAL_SECTION fd_cache_section
= { &critsect_debug
, -1, 0, 0, 0, 0 };
108 static void fatal_error( const char *err
, ... ) __attribute__((noreturn
, format(printf
,1,2)));
109 static void fatal_perror( const char *err
, ... ) __attribute__((noreturn
, format(printf
,1,2)));
110 static void server_connect_error( const char *serverdir
) __attribute__((noreturn
));
113 /* die on a fatal error; use only during initialization */
114 static void fatal_error( const char *err
, ... )
118 va_start( args
, err
);
119 fprintf( stderr
, "wine: " );
120 vfprintf( stderr
, err
, args
);
125 /* die on a fatal error; use only during initialization */
126 static void fatal_perror( const char *err
, ... )
130 va_start( args
, err
);
131 fprintf( stderr
, "wine: " );
132 vfprintf( stderr
, err
, args
);
139 /***********************************************************************
142 void server_exit_thread( int status
)
144 struct wine_pthread_thread_info info
;
149 RemoveEntryList( &NtCurrentTeb()->TlsLinks
);
151 RtlFreeHeap( GetProcessHeap(), 0, NtCurrentTeb()->FlsSlots
);
152 RtlFreeHeap( GetProcessHeap(), 0, NtCurrentTeb()->TlsExpansionSlots
);
154 info
.stack_base
= NtCurrentTeb()->DeallocationStack
;
155 info
.teb_base
= NtCurrentTeb();
156 info
.teb_sel
= wine_get_fs();
157 info
.exit_status
= status
;
159 fds
[0] = ntdll_get_thread_data()->wait_fd
[0];
160 fds
[1] = ntdll_get_thread_data()->wait_fd
[1];
161 fds
[2] = ntdll_get_thread_data()->reply_fd
;
162 fds
[3] = ntdll_get_thread_data()->request_fd
;
163 pthread_functions
.sigprocmask( SIG_BLOCK
, &server_block_set
, NULL
);
166 NtFreeVirtualMemory( GetCurrentProcess(), &info
.stack_base
, &size
, MEM_RELEASE
| MEM_SYSTEM
);
167 info
.stack_size
= size
;
170 NtFreeVirtualMemory( GetCurrentProcess(), &info
.teb_base
, &size
, MEM_RELEASE
| MEM_SYSTEM
);
171 info
.teb_size
= size
;
177 pthread_functions
.exit_thread( &info
);
181 /***********************************************************************
182 * server_abort_thread
184 void server_abort_thread( int status
)
186 pthread_functions
.sigprocmask( SIG_BLOCK
, &server_block_set
, NULL
);
187 close( ntdll_get_thread_data()->wait_fd
[0] );
188 close( ntdll_get_thread_data()->wait_fd
[1] );
189 close( ntdll_get_thread_data()->reply_fd
);
190 close( ntdll_get_thread_data()->request_fd
);
191 pthread_functions
.abort_thread( status
);
195 /***********************************************************************
196 * server_protocol_error
198 void server_protocol_error( const char *err
, ... )
202 va_start( args
, err
);
203 fprintf( stderr
, "wine client error:%x: ", GetCurrentThreadId() );
204 vfprintf( stderr
, err
, args
);
206 server_abort_thread(1);
210 /***********************************************************************
211 * server_protocol_perror
213 void server_protocol_perror( const char *err
)
215 fprintf( stderr
, "wine client error:%x: ", GetCurrentThreadId() );
217 server_abort_thread(1);
221 /***********************************************************************
224 * Send a request to the server.
226 static unsigned int send_request( const struct __server_request_info
*req
)
231 if (!req
->u
.req
.request_header
.request_size
)
233 if ((ret
= write( ntdll_get_thread_data()->request_fd
, &req
->u
.req
,
234 sizeof(req
->u
.req
) )) == sizeof(req
->u
.req
)) return STATUS_SUCCESS
;
239 struct iovec vec
[__SERVER_MAX_DATA
+1];
241 vec
[0].iov_base
= (void *)&req
->u
.req
;
242 vec
[0].iov_len
= sizeof(req
->u
.req
);
243 for (i
= 0; i
< req
->data_count
; i
++)
245 vec
[i
+1].iov_base
= (void *)req
->data
[i
].ptr
;
246 vec
[i
+1].iov_len
= req
->data
[i
].size
;
248 if ((ret
= writev( ntdll_get_thread_data()->request_fd
, vec
, i
+1 )) ==
249 req
->u
.req
.request_header
.request_size
+ sizeof(req
->u
.req
)) return STATUS_SUCCESS
;
252 if (ret
>= 0) server_protocol_error( "partial write %d\n", ret
);
253 if (errno
== EPIPE
) server_abort_thread(0);
254 if (errno
== EFAULT
) return STATUS_ACCESS_VIOLATION
;
255 server_protocol_perror( "write" );
259 /***********************************************************************
262 * Read data from the reply buffer; helper for wait_reply.
264 static void read_reply_data( void *buffer
, size_t size
)
270 if ((ret
= read( ntdll_get_thread_data()->reply_fd
, buffer
, size
)) > 0)
272 if (!(size
-= ret
)) return;
273 buffer
= (char *)buffer
+ ret
;
277 if (errno
== EINTR
) continue;
278 if (errno
== EPIPE
) break;
279 server_protocol_perror("read");
281 /* the server closed the connection; time to die... */
282 server_abort_thread(0);
286 /***********************************************************************
289 * Wait for a reply from the server.
291 static inline unsigned int wait_reply( struct __server_request_info
*req
)
293 read_reply_data( &req
->u
.reply
, sizeof(req
->u
.reply
) );
294 if (req
->u
.reply
.reply_header
.reply_size
)
295 read_reply_data( req
->reply_data
, req
->u
.reply
.reply_header
.reply_size
);
296 return req
->u
.reply
.reply_header
.error
;
300 /***********************************************************************
301 * wine_server_call (NTDLL.@)
303 * Perform a server call.
306 * req_ptr [I/O] Function dependent data
309 * Depends on server function being called, but usually an NTSTATUS code.
312 * Use the SERVER_START_REQ and SERVER_END_REQ to help you fill out the
313 * server request structure for the particular call. E.g:
314 *| SERVER_START_REQ( event_op )
316 *| req->handle = handle;
317 *| req->op = SET_EVENT;
318 *| ret = wine_server_call( req );
322 unsigned int wine_server_call( void *req_ptr
)
324 struct __server_request_info
* const req
= req_ptr
;
328 pthread_functions
.sigprocmask( SIG_BLOCK
, &server_block_set
, &old_set
);
329 ret
= send_request( req
);
330 if (!ret
) ret
= wait_reply( req
);
331 pthread_functions
.sigprocmask( SIG_SETMASK
, &old_set
, NULL
);
336 /***********************************************************************
337 * server_enter_uninterrupted_section
339 void server_enter_uninterrupted_section( RTL_CRITICAL_SECTION
*cs
, sigset_t
*sigset
)
341 pthread_functions
.sigprocmask( SIG_BLOCK
, &server_block_set
, sigset
);
342 RtlEnterCriticalSection( cs
);
346 /***********************************************************************
347 * server_leave_uninterrupted_section
349 void server_leave_uninterrupted_section( RTL_CRITICAL_SECTION
*cs
, sigset_t
*sigset
)
351 RtlLeaveCriticalSection( cs
);
352 pthread_functions
.sigprocmask( SIG_SETMASK
, sigset
, NULL
);
356 /***********************************************************************
357 * wine_server_send_fd (NTDLL.@)
359 * Send a file descriptor to the server.
362 * fd [I] file descriptor to send
367 void wine_server_send_fd( int fd
)
369 #ifndef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
373 struct msghdr msghdr
;
377 vec
.iov_base
= (void *)&data
;
378 vec
.iov_len
= sizeof(data
);
380 msghdr
.msg_name
= NULL
;
381 msghdr
.msg_namelen
= 0;
382 msghdr
.msg_iov
= &vec
;
383 msghdr
.msg_iovlen
= 1;
385 #ifdef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
386 msghdr
.msg_accrights
= (void *)&fd
;
387 msghdr
.msg_accrightslen
= sizeof(fd
);
388 #else /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
389 cmsg
.header
.len
= sizeof(cmsg
.header
) + sizeof(fd
);
390 cmsg
.header
.level
= SOL_SOCKET
;
391 cmsg
.header
.type
= SCM_RIGHTS
;
393 msghdr
.msg_control
= &cmsg
;
394 msghdr
.msg_controllen
= sizeof(cmsg
.header
) + sizeof(fd
);
395 msghdr
.msg_flags
= 0;
396 #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
398 data
.tid
= GetCurrentThreadId();
403 if ((ret
= sendmsg( fd_socket
, &msghdr
, 0 )) == sizeof(data
)) return;
404 if (ret
>= 0) server_protocol_error( "partial write %d\n", ret
);
405 if (errno
== EINTR
) continue;
406 if (errno
== EPIPE
) server_abort_thread(0);
407 server_protocol_perror( "sendmsg" );
412 /***********************************************************************
415 * Receive a file descriptor passed from the server.
417 static int receive_fd( obj_handle_t
*handle
)
422 #ifdef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
423 struct msghdr msghdr
;
426 msghdr
.msg_accrights
= (void *)&fd
;
427 msghdr
.msg_accrightslen
= sizeof(fd
);
428 #else /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
429 struct msghdr msghdr
;
432 cmsg
.header
.len
= sizeof(cmsg
.header
) + sizeof(fd
);
433 cmsg
.header
.level
= SOL_SOCKET
;
434 cmsg
.header
.type
= SCM_RIGHTS
;
436 msghdr
.msg_control
= &cmsg
;
437 msghdr
.msg_controllen
= sizeof(cmsg
.header
) + sizeof(fd
);
438 msghdr
.msg_flags
= 0;
439 #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
441 msghdr
.msg_name
= NULL
;
442 msghdr
.msg_namelen
= 0;
443 msghdr
.msg_iov
= &vec
;
444 msghdr
.msg_iovlen
= 1;
445 vec
.iov_base
= (void *)handle
;
446 vec
.iov_len
= sizeof(*handle
);
450 if ((ret
= recvmsg( fd_socket
, &msghdr
, 0 )) > 0)
452 #ifndef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
455 if (fd
!= -1) fcntl( fd
, F_SETFD
, 1 ); /* set close on exec flag */
459 if (errno
== EINTR
) continue;
460 if (errno
== EPIPE
) break;
461 server_protocol_perror("recvmsg");
463 /* the server closed the connection; time to die... */
464 server_abort_thread(0);
468 /***********************************************************************/
469 /* fd cache support */
471 struct fd_cache_entry
474 enum server_fd_type type
: 6;
475 unsigned int access
: 2;
476 unsigned int options
: 24;
479 #define FD_CACHE_BLOCK_SIZE (65536 / sizeof(struct fd_cache_entry))
480 #define FD_CACHE_ENTRIES 128
482 static struct fd_cache_entry
*fd_cache
[FD_CACHE_ENTRIES
];
483 static struct fd_cache_entry fd_cache_initial_block
[FD_CACHE_BLOCK_SIZE
];
485 static inline unsigned int handle_to_index( obj_handle_t handle
, unsigned int *entry
)
487 unsigned long idx
= ((unsigned long)handle
>> 2) - 1;
488 *entry
= idx
/ FD_CACHE_BLOCK_SIZE
;
489 return idx
% FD_CACHE_BLOCK_SIZE
;
493 /***********************************************************************
496 * Caller must hold fd_cache_section.
498 static int add_fd_to_cache( obj_handle_t handle
, int fd
, enum server_fd_type type
,
499 unsigned int access
, unsigned int options
)
501 unsigned int entry
, idx
= handle_to_index( handle
, &entry
);
504 if (entry
>= FD_CACHE_ENTRIES
)
506 FIXME( "too many allocated handles, not caching %p\n", handle
);
510 if (!fd_cache
[entry
]) /* do we need to allocate a new block of entries? */
512 if (!entry
) fd_cache
[0] = fd_cache_initial_block
;
515 void *ptr
= wine_anon_mmap( NULL
, FD_CACHE_BLOCK_SIZE
* sizeof(struct fd_cache_entry
),
516 PROT_READ
| PROT_WRITE
, 0 );
517 if (ptr
== MAP_FAILED
) return 0;
518 fd_cache
[entry
] = ptr
;
521 /* store fd+1 so that 0 can be used as the unset value */
522 prev_fd
= interlocked_xchg( &fd_cache
[entry
][idx
].fd
, fd
+ 1 ) - 1;
523 fd_cache
[entry
][idx
].type
= type
;
524 fd_cache
[entry
][idx
].access
= access
;
525 fd_cache
[entry
][idx
].options
= options
;
526 if (prev_fd
!= -1) close( prev_fd
);
531 /***********************************************************************
534 * Caller must hold fd_cache_section.
536 static inline int get_cached_fd( obj_handle_t handle
, enum server_fd_type
*type
,
537 unsigned int *access
, unsigned int *options
)
539 unsigned int entry
, idx
= handle_to_index( handle
, &entry
);
542 if (entry
< FD_CACHE_ENTRIES
&& fd_cache
[entry
])
544 fd
= fd_cache
[entry
][idx
].fd
- 1;
545 if (type
) *type
= fd_cache
[entry
][idx
].type
;
546 if (access
) *access
= fd_cache
[entry
][idx
].access
;
547 if (options
) *options
= fd_cache
[entry
][idx
].options
;
553 /***********************************************************************
554 * server_remove_fd_from_cache
556 int server_remove_fd_from_cache( obj_handle_t handle
)
558 unsigned int entry
, idx
= handle_to_index( handle
, &entry
);
561 if (entry
< FD_CACHE_ENTRIES
&& fd_cache
[entry
])
562 fd
= interlocked_xchg( &fd_cache
[entry
][idx
].fd
, 0 ) - 1;
568 /***********************************************************************
571 * The returned unix_fd should be closed iff needs_close is non-zero.
573 int server_get_unix_fd( obj_handle_t handle
, unsigned int wanted_access
, int *unix_fd
,
574 int *needs_close
, enum server_fd_type
*type
, unsigned int *options
)
577 obj_handle_t fd_handle
;
579 unsigned int access
= 0;
583 wanted_access
&= FILE_READ_DATA
| FILE_WRITE_DATA
;
585 server_enter_uninterrupted_section( &fd_cache_section
, &sigset
);
587 fd
= get_cached_fd( handle
, type
, &access
, options
);
588 if (fd
!= -1) goto done
;
590 SERVER_START_REQ( get_handle_fd
)
592 req
->handle
= handle
;
593 if (!(ret
= wine_server_call( req
)))
595 if (type
) *type
= reply
->type
;
596 if (options
) *options
= reply
->options
;
597 access
= reply
->access
;
598 if ((fd
= receive_fd( &fd_handle
)) != -1)
600 assert( fd_handle
== handle
);
601 *needs_close
= (reply
->removable
||
602 !add_fd_to_cache( handle
, fd
, reply
->type
,
603 reply
->access
, reply
->options
));
605 else ret
= STATUS_TOO_MANY_OPENED_FILES
;
611 server_leave_uninterrupted_section( &fd_cache_section
, &sigset
);
612 if (!ret
&& ((access
& wanted_access
) != wanted_access
))
614 ret
= STATUS_ACCESS_DENIED
;
615 if (*needs_close
) close( fd
);
617 if (!ret
) *unix_fd
= fd
;
622 /***********************************************************************
623 * wine_server_fd_to_handle (NTDLL.@)
625 * Allocate a file handle for a Unix file descriptor.
628 * fd [I] Unix file descriptor.
629 * access [I] Win32 access flags.
630 * attributes [I] Object attributes.
631 * handle [O] Address where Wine file handle will be stored.
636 int wine_server_fd_to_handle( int fd
, unsigned int access
, unsigned int attributes
, obj_handle_t
*handle
)
641 wine_server_send_fd( fd
);
643 SERVER_START_REQ( alloc_file_handle
)
645 req
->access
= access
;
646 req
->attributes
= attributes
;
648 if (!(ret
= wine_server_call( req
))) *handle
= reply
->handle
;
655 /***********************************************************************
656 * wine_server_handle_to_fd (NTDLL.@)
658 * Retrieve the file descriptor corresponding to a file handle.
661 * handle [I] Wine file handle.
662 * access [I] Win32 file access rights requested.
663 * unix_fd [O] Address where Unix file descriptor will be stored.
664 * options [O] Address where the file open options will be stored. Optional.
669 int wine_server_handle_to_fd( obj_handle_t handle
, unsigned int access
, int *unix_fd
,
670 unsigned int *options
)
672 int needs_close
, ret
= server_get_unix_fd( handle
, access
, unix_fd
, &needs_close
, NULL
, options
);
674 if (!ret
&& !needs_close
)
676 if ((*unix_fd
= dup(*unix_fd
)) == -1) ret
= FILE_GetNtStatus();
682 /***********************************************************************
683 * wine_server_release_fd (NTDLL.@)
685 * Release the Unix file descriptor returned by wine_server_handle_to_fd.
688 * handle [I] Wine file handle.
689 * unix_fd [I] Unix file descriptor to release.
694 void wine_server_release_fd( obj_handle_t handle
, int unix_fd
)
700 /***********************************************************************
703 * Start a new wine server.
705 static void start_server(void)
707 static int started
; /* we only try once */
709 static char wineserver
[] = "server/wineserver";
710 static char debug
[] = "-d";
716 if (pid
== -1) fatal_perror( "fork" );
719 argv
[0] = wineserver
;
720 argv
[1] = TRACE_ON(server
) ? debug
: NULL
;
722 wine_exec_wine_binary( argv
[0], argv
, getenv("WINESERVER") );
723 fatal_error( "could not exec wineserver\n" );
725 waitpid( pid
, &status
, 0 );
726 status
= WIFEXITED(status
) ? WEXITSTATUS(status
) : 1;
727 if (status
== 2) return; /* server lock held by someone else, will retry later */
728 if (status
) exit(status
); /* server failed */
734 /***********************************************************************
737 * Setup the wine configuration dir.
739 static void setup_config_dir(void)
741 const char *p
, *config_dir
= wine_get_config_dir();
743 if (chdir( config_dir
) == -1)
745 if (errno
!= ENOENT
) fatal_perror( "chdir to %s\n", config_dir
);
747 if ((p
= strrchr( config_dir
, '/' )) && p
!= config_dir
)
752 if (!(tmp_dir
= malloc( p
+ 1 - config_dir
))) fatal_error( "out of memory\n" );
753 memcpy( tmp_dir
, config_dir
, p
- config_dir
);
754 tmp_dir
[p
- config_dir
] = 0;
755 if (!stat( tmp_dir
, &st
) && st
.st_uid
!= getuid())
756 fatal_error( "'%s' is not owned by you, refusing to create a configuration directory there\n",
761 mkdir( config_dir
, 0777 );
762 if (chdir( config_dir
) == -1) fatal_perror( "chdir to %s\n", config_dir
);
763 MESSAGE( "wine: created the configuration directory '%s'\n", config_dir
);
766 if (mkdir( "dosdevices", 0777 ) == -1)
768 if (errno
== EEXIST
) return;
769 fatal_perror( "cannot create %s/dosdevices\n", config_dir
);
772 /* create the drive symlinks */
774 mkdir( "drive_c", 0777 );
775 symlink( "../drive_c", "dosdevices/c:" );
776 symlink( "/", "dosdevices/z:" );
780 /***********************************************************************
781 * server_connect_error
783 * Try to display a meaningful explanation of why we couldn't connect
786 static void server_connect_error( const char *serverdir
)
791 if ((fd
= open( LOCKNAME
, O_WRONLY
)) == -1)
792 fatal_error( "for some mysterious reason, the wine server never started.\n" );
795 fl
.l_whence
= SEEK_SET
;
798 if (fcntl( fd
, F_GETLK
, &fl
) != -1)
800 if (fl
.l_type
== F_WRLCK
) /* the file is locked */
801 fatal_error( "a wine server seems to be running, but I cannot connect to it.\n"
802 " You probably need to kill that process (it might be pid %d).\n",
804 fatal_error( "for some mysterious reason, the wine server failed to run.\n" );
806 fatal_error( "the file system of '%s' doesn't support locks,\n"
807 " and there is a 'socket' file in that directory that prevents wine from starting.\n"
808 " You should make sure no wine server is running, remove that file and try again.\n",
813 /***********************************************************************
816 * Attempt to connect to an existing server socket.
817 * We need to be in the server directory already.
819 static int server_connect(void)
821 const char *serverdir
;
822 struct sockaddr_un addr
;
824 int s
, slen
, retry
, fd_cwd
;
826 /* retrieve the current directory */
827 fd_cwd
= open( ".", O_RDONLY
);
828 if (fd_cwd
!= -1) fcntl( fd_cwd
, F_SETFD
, 1 ); /* set close on exec flag */
831 serverdir
= wine_get_server_dir();
833 /* chdir to the server directory */
834 if (chdir( serverdir
) == -1)
836 if (errno
!= ENOENT
) fatal_perror( "chdir to %s", serverdir
);
838 if (chdir( serverdir
) == -1) fatal_perror( "chdir to %s", serverdir
);
841 /* make sure we are at the right place */
842 if (stat( ".", &st
) == -1) fatal_perror( "stat %s", serverdir
);
843 if (st
.st_uid
!= getuid()) fatal_error( "'%s' is not owned by you\n", serverdir
);
844 if (st
.st_mode
& 077) fatal_error( "'%s' must not be accessible by other users\n", serverdir
);
846 for (retry
= 0; retry
< 6; retry
++)
848 /* if not the first try, wait a bit to leave the previous server time to exit */
851 usleep( 100000 * retry
* retry
);
853 if (lstat( SOCKETNAME
, &st
) == -1) continue; /* still no socket, wait a bit more */
855 else if (lstat( SOCKETNAME
, &st
) == -1) /* check for an already existing socket */
857 if (errno
!= ENOENT
) fatal_perror( "lstat %s/%s", serverdir
, SOCKETNAME
);
859 if (lstat( SOCKETNAME
, &st
) == -1) continue; /* still no socket, wait a bit more */
862 /* make sure the socket is sane (ISFIFO needed for Solaris) */
863 if (!S_ISSOCK(st
.st_mode
) && !S_ISFIFO(st
.st_mode
))
864 fatal_error( "'%s/%s' is not a socket\n", serverdir
, SOCKETNAME
);
865 if (st
.st_uid
!= getuid())
866 fatal_error( "'%s/%s' is not owned by you\n", serverdir
, SOCKETNAME
);
868 /* try to connect to it */
869 addr
.sun_family
= AF_UNIX
;
870 strcpy( addr
.sun_path
, SOCKETNAME
);
871 slen
= sizeof(addr
) - sizeof(addr
.sun_path
) + strlen(addr
.sun_path
) + 1;
872 #ifdef HAVE_STRUCT_SOCKADDR_UN_SUN_LEN
875 if ((s
= socket( AF_UNIX
, SOCK_STREAM
, 0 )) == -1) fatal_perror( "socket" );
876 if (connect( s
, (struct sockaddr
*)&addr
, slen
) != -1)
878 /* switch back to the starting directory */
884 fcntl( s
, F_SETFD
, 1 ); /* set close on exec flag */
889 server_connect_error( serverdir
);
894 #include <mach/mach.h>
895 #include <mach/mach_error.h>
896 #include <servers/bootstrap.h>
898 /* send our task port to the server */
899 static void send_server_task_port(void)
901 mach_port_t bootstrap_port
, wineserver_port
;
905 mach_msg_header_t header
;
906 mach_msg_body_t body
;
907 mach_msg_port_descriptor_t task_port
;
910 if (task_get_bootstrap_port(mach_task_self(), &bootstrap_port
) != KERN_SUCCESS
) return;
912 kret
= bootstrap_look_up(bootstrap_port
, (char*)wine_get_server_dir(), &wineserver_port
);
913 if (kret
!= KERN_SUCCESS
)
914 fatal_error( "cannot find the server port: 0x%08x\n", kret
);
916 mach_port_deallocate(mach_task_self(), bootstrap_port
);
918 msg
.header
.msgh_bits
= MACH_MSGH_BITS(MACH_MSG_TYPE_COPY_SEND
, 0) | MACH_MSGH_BITS_COMPLEX
;
919 msg
.header
.msgh_size
= sizeof(msg
);
920 msg
.header
.msgh_remote_port
= wineserver_port
;
921 msg
.header
.msgh_local_port
= MACH_PORT_NULL
;
923 msg
.body
.msgh_descriptor_count
= 1;
924 msg
.task_port
.name
= mach_task_self();
925 msg
.task_port
.disposition
= MACH_MSG_TYPE_COPY_SEND
;
926 msg
.task_port
.type
= MACH_MSG_PORT_DESCRIPTOR
;
928 kret
= mach_msg_send(&msg
.header
);
929 if (kret
!= KERN_SUCCESS
)
930 server_protocol_error( "mach_msg_send failed: 0x%08x\n", kret
);
932 mach_port_deallocate(mach_task_self(), wineserver_port
);
934 #endif /* __APPLE__ */
936 /***********************************************************************
937 * server_init_process
939 * Start the server and create the initial socket pair.
941 void server_init_process(void)
943 obj_handle_t dummy_handle
;
944 const char *env_socket
= getenv( "WINESERVERSOCKET" );
948 fd_socket
= atoi( env_socket
);
949 if (fcntl( fd_socket
, F_SETFD
, 1 ) == -1)
950 fatal_perror( "Bad server socket %d", fd_socket
);
951 unsetenv( "WINESERVERSOCKET" );
953 else fd_socket
= server_connect();
955 /* setup the signal mask */
956 sigemptyset( &server_block_set
);
957 sigaddset( &server_block_set
, SIGALRM
);
958 sigaddset( &server_block_set
, SIGIO
);
959 sigaddset( &server_block_set
, SIGINT
);
960 sigaddset( &server_block_set
, SIGHUP
);
961 sigaddset( &server_block_set
, SIGUSR1
);
962 sigaddset( &server_block_set
, SIGUSR2
);
963 sigaddset( &server_block_set
, SIGCHLD
);
964 pthread_functions
.sigprocmask( SIG_BLOCK
, &server_block_set
, NULL
);
966 /* receive the first thread request fd on the main socket */
967 ntdll_get_thread_data()->request_fd
= receive_fd( &dummy_handle
);
970 send_server_task_port();
975 /***********************************************************************
976 * server_init_process_done
978 NTSTATUS
server_init_process_done(void)
980 PEB
*peb
= NtCurrentTeb()->Peb
;
981 IMAGE_NT_HEADERS
*nt
= RtlImageNtHeader( peb
->ImageBaseAddress
);
984 /* Install signal handlers; this cannot be done earlier, since we cannot
985 * send exceptions to the debugger before the create process event that
986 * is sent by REQ_INIT_PROCESS_DONE.
987 * We do need the handlers in place by the time the request is over, so
988 * we set them up here. If we segfault between here and the server call
989 * something is very wrong... */
990 signal_init_process();
992 /* Signal the parent process to continue */
993 SERVER_START_REQ( init_process_done
)
995 req
->module
= peb
->ImageBaseAddress
;
996 req
->entry
= (char *)peb
->ImageBaseAddress
+ nt
->OptionalHeader
.AddressOfEntryPoint
;
997 req
->gui
= (nt
->OptionalHeader
.Subsystem
!= IMAGE_SUBSYSTEM_WINDOWS_CUI
);
998 status
= wine_server_call( req
);
1006 /***********************************************************************
1007 * server_init_thread
1009 * Send an init thread request. Return 0 if OK.
1011 size_t server_init_thread( int unix_pid
, int unix_tid
, void *entry_point
)
1015 struct sigaction sig_act
;
1018 sig_act
.sa_handler
= SIG_IGN
;
1019 sig_act
.sa_flags
= 0;
1020 sigemptyset( &sig_act
.sa_mask
);
1022 /* ignore SIGPIPE so that we get an EPIPE error instead */
1023 sigaction( SIGPIPE
, &sig_act
, NULL
);
1024 /* automatic child reaping to avoid zombies */
1026 sig_act
.sa_flags
|= SA_NOCLDWAIT
;
1028 sigaction( SIGCHLD
, &sig_act
, NULL
);
1030 /* create the server->client communication pipes */
1031 if (pipe( reply_pipe
) == -1) server_protocol_perror( "pipe" );
1032 if (pipe( ntdll_get_thread_data()->wait_fd
) == -1) server_protocol_perror( "pipe" );
1033 wine_server_send_fd( reply_pipe
[1] );
1034 wine_server_send_fd( ntdll_get_thread_data()->wait_fd
[1] );
1035 ntdll_get_thread_data()->reply_fd
= reply_pipe
[0];
1036 close( reply_pipe
[1] );
1038 /* set close on exec flag */
1039 fcntl( ntdll_get_thread_data()->reply_fd
, F_SETFD
, 1 );
1040 fcntl( ntdll_get_thread_data()->wait_fd
[0], F_SETFD
, 1 );
1041 fcntl( ntdll_get_thread_data()->wait_fd
[1], F_SETFD
, 1 );
1043 SERVER_START_REQ( init_thread
)
1045 req
->unix_pid
= unix_pid
;
1046 req
->unix_tid
= unix_tid
;
1047 req
->teb
= NtCurrentTeb();
1048 req
->peb
= NtCurrentTeb()->Peb
;
1049 req
->entry
= entry_point
;
1050 req
->ldt_copy
= &wine_ldt_copy
;
1051 req
->reply_fd
= reply_pipe
[1];
1052 req
->wait_fd
= ntdll_get_thread_data()->wait_fd
[1];
1053 req
->debug_level
= (TRACE_ON(server
) != 0);
1054 ret
= wine_server_call( req
);
1055 NtCurrentTeb()->ClientId
.UniqueProcess
= ULongToHandle(reply
->pid
);
1056 NtCurrentTeb()->ClientId
.UniqueThread
= ULongToHandle(reply
->tid
);
1057 info_size
= reply
->info_size
;
1058 version
= reply
->version
;
1059 server_start_time
= reply
->server_start
;
1063 if (ret
) server_protocol_error( "init_thread failed with status %x\n", ret
);
1064 if (version
!= SERVER_PROTOCOL_VERSION
)
1065 server_protocol_error( "version mismatch %d/%d.\n"
1066 "Your %s binary was not upgraded correctly,\n"
1067 "or you have an older one somewhere in your PATH.\n"
1068 "Or maybe the wrong wineserver is still running?\n",
1069 version
, SERVER_PROTOCOL_VERSION
,
1070 (version
> SERVER_PROTOCOL_VERSION
) ? "wine" : "wineserver" );