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"
34 #ifdef HAVE_PTHREAD_NP_H
35 # include <pthread_np.h>
41 #include <sys/types.h>
42 #ifdef HAVE_SYS_SOCKET_H
43 # include <sys/socket.h>
45 #ifdef HAVE_SYS_WAIT_H
51 #ifdef HAVE_SYS_MMAN_H
54 #ifdef HAVE_SYS_PRCTL_H
55 # include <sys/prctl.h>
57 #ifdef HAVE_SYS_STAT_H
58 # include <sys/stat.h>
60 #ifdef HAVE_SYS_SYSCALL_H
61 # include <sys/syscall.h>
67 #include <sys/ucontext.h>
75 #define WIN32_NO_STATUS
76 #include "wine/library.h"
77 #include "wine/server.h"
78 #include "wine/debug.h"
79 #include "ntdll_misc.h"
81 WINE_DEFAULT_DEBUG_CHANNEL(server
);
83 /* Some versions of glibc don't define this */
88 #ifndef MSG_CMSG_CLOEXEC
89 #define MSG_CMSG_CLOEXEC 0
92 #define SOCKETNAME "socket" /* name of the socket file */
93 #define LOCKNAME "lock" /* name of the lock file */
96 static const enum cpu_type client_cpu
= CPU_x86
;
97 #elif defined(__x86_64__)
98 static const enum cpu_type client_cpu
= CPU_x86_64
;
99 #elif defined(__powerpc__)
100 static const enum cpu_type client_cpu
= CPU_POWERPC
;
101 #elif defined(__sparc__)
102 static const enum cpu_type client_cpu
= CPU_SPARC
;
103 #elif defined(__arm__)
104 static const enum cpu_type client_cpu
= CPU_ARM
;
106 #error Unsupported CPU
109 unsigned int server_cpus
= 0;
110 int is_wow64
= FALSE
;
112 timeout_t server_start_time
= 0; /* time of server startup */
114 sigset_t server_block_set
; /* signals to block during server calls */
115 static int fd_socket
= -1; /* socket to exchange file descriptors with the server */
116 static pid_t server_pid
;
118 static RTL_CRITICAL_SECTION fd_cache_section
;
119 static RTL_CRITICAL_SECTION_DEBUG critsect_debug
=
121 0, 0, &fd_cache_section
,
122 { &critsect_debug
.ProcessLocksList
, &critsect_debug
.ProcessLocksList
},
123 0, 0, { (DWORD_PTR
)(__FILE__
": fd_cache_section") }
125 static RTL_CRITICAL_SECTION fd_cache_section
= { &critsect_debug
, -1, 0, 0, 0, 0 };
129 static void fatal_error( const char *err
, ... ) __attribute__((noreturn
, format(printf
,1,2)));
130 static void fatal_perror( const char *err
, ... ) __attribute__((noreturn
, format(printf
,1,2)));
131 static void server_connect_error( const char *serverdir
) __attribute__((noreturn
));
134 /* die on a fatal error; use only during initialization */
135 static void fatal_error( const char *err
, ... )
139 va_start( args
, err
);
140 fprintf( stderr
, "wine: " );
141 vfprintf( stderr
, err
, args
);
146 /* die on a fatal error; use only during initialization */
147 static void fatal_perror( const char *err
, ... )
151 va_start( args
, err
);
152 fprintf( stderr
, "wine: " );
153 vfprintf( stderr
, err
, args
);
160 /***********************************************************************
161 * server_protocol_error
163 void server_protocol_error( const char *err
, ... )
167 va_start( args
, err
);
168 fprintf( stderr
, "wine client error:%x: ", GetCurrentThreadId() );
169 vfprintf( stderr
, err
, args
);
175 /***********************************************************************
176 * server_protocol_perror
178 void server_protocol_perror( const char *err
)
180 fprintf( stderr
, "wine client error:%x: ", GetCurrentThreadId() );
186 /***********************************************************************
189 * Send a request to the server.
191 static unsigned int send_request( const struct __server_request_info
*req
)
196 if (!req
->u
.req
.request_header
.request_size
)
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
;
204 struct iovec vec
[__SERVER_MAX_DATA
+1];
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
++)
210 vec
[i
+1].iov_base
= (void *)req
->data
[i
].ptr
;
211 vec
[i
+1].iov_len
= req
->data
[i
].size
;
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
;
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" );
224 /***********************************************************************
227 * Read data from the reply buffer; helper for wait_reply.
229 static void read_reply_data( void *buffer
, size_t size
)
235 if ((ret
= read( ntdll_get_thread_data()->reply_fd
, buffer
, size
)) > 0)
237 if (!(size
-= ret
)) return;
238 buffer
= (char *)buffer
+ ret
;
242 if (errno
== EINTR
) continue;
243 if (errno
== EPIPE
) break;
244 server_protocol_perror("read");
246 /* the server closed the connection; time to die... */
251 /***********************************************************************
254 * Wait for a reply from the server.
256 static inline unsigned int wait_reply( struct __server_request_info
*req
)
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
;
265 /***********************************************************************
266 * wine_server_call (NTDLL.@)
268 * Perform a server call.
271 * req_ptr [I/O] Function dependent data
274 * Depends on server function being called, but usually an NTSTATUS code.
277 * Use the SERVER_START_REQ and SERVER_END_REQ to help you fill out the
278 * server request structure for the particular call. E.g:
279 *| SERVER_START_REQ( event_op )
281 *| req->handle = handle;
282 *| req->op = SET_EVENT;
283 *| ret = wine_server_call( req );
287 unsigned int wine_server_call( void *req_ptr
)
289 struct __server_request_info
* const req
= req_ptr
;
293 pthread_sigmask( SIG_BLOCK
, &server_block_set
, &old_set
);
294 ret
= send_request( req
);
295 if (!ret
) ret
= wait_reply( req
);
296 pthread_sigmask( SIG_SETMASK
, &old_set
, NULL
);
301 /***********************************************************************
302 * server_enter_uninterrupted_section
304 void server_enter_uninterrupted_section( RTL_CRITICAL_SECTION
*cs
, sigset_t
*sigset
)
306 pthread_sigmask( SIG_BLOCK
, &server_block_set
, sigset
);
307 RtlEnterCriticalSection( cs
);
311 /***********************************************************************
312 * server_leave_uninterrupted_section
314 void server_leave_uninterrupted_section( RTL_CRITICAL_SECTION
*cs
, sigset_t
*sigset
)
316 RtlLeaveCriticalSection( cs
);
317 pthread_sigmask( SIG_SETMASK
, sigset
, NULL
);
321 /***********************************************************************
322 * wine_server_send_fd (NTDLL.@)
324 * Send a file descriptor to the server.
327 * fd [I] file descriptor to send
332 void CDECL
wine_server_send_fd( int fd
)
335 struct msghdr msghdr
;
339 #ifdef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
340 msghdr
.msg_accrights
= (void *)&fd
;
341 msghdr
.msg_accrightslen
= sizeof(fd
);
342 #else /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
343 char cmsg_buffer
[256];
344 struct cmsghdr
*cmsg
;
345 msghdr
.msg_control
= cmsg_buffer
;
346 msghdr
.msg_controllen
= sizeof(cmsg_buffer
);
347 msghdr
.msg_flags
= 0;
348 cmsg
= CMSG_FIRSTHDR( &msghdr
);
349 cmsg
->cmsg_len
= CMSG_LEN( sizeof(fd
) );
350 cmsg
->cmsg_level
= SOL_SOCKET
;
351 cmsg
->cmsg_type
= SCM_RIGHTS
;
352 *(int *)CMSG_DATA(cmsg
) = fd
;
353 msghdr
.msg_controllen
= cmsg
->cmsg_len
;
354 #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
356 msghdr
.msg_name
= NULL
;
357 msghdr
.msg_namelen
= 0;
358 msghdr
.msg_iov
= &vec
;
359 msghdr
.msg_iovlen
= 1;
361 vec
.iov_base
= (void *)&data
;
362 vec
.iov_len
= sizeof(data
);
364 data
.tid
= GetCurrentThreadId();
369 if ((ret
= sendmsg( fd_socket
, &msghdr
, 0 )) == sizeof(data
)) return;
370 if (ret
>= 0) server_protocol_error( "partial write %d\n", ret
);
371 if (errno
== EINTR
) continue;
372 if (errno
== EPIPE
) abort_thread(0);
373 server_protocol_perror( "sendmsg" );
378 /***********************************************************************
381 * Receive a file descriptor passed from the server.
383 static int receive_fd( obj_handle_t
*handle
)
386 struct msghdr msghdr
;
389 #ifdef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
390 msghdr
.msg_accrights
= (void *)&fd
;
391 msghdr
.msg_accrightslen
= sizeof(fd
);
392 #else /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
393 char cmsg_buffer
[256];
394 msghdr
.msg_control
= cmsg_buffer
;
395 msghdr
.msg_controllen
= sizeof(cmsg_buffer
);
396 msghdr
.msg_flags
= 0;
397 #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
399 msghdr
.msg_name
= NULL
;
400 msghdr
.msg_namelen
= 0;
401 msghdr
.msg_iov
= &vec
;
402 msghdr
.msg_iovlen
= 1;
403 vec
.iov_base
= (void *)handle
;
404 vec
.iov_len
= sizeof(*handle
);
408 if ((ret
= recvmsg( fd_socket
, &msghdr
, MSG_CMSG_CLOEXEC
)) > 0)
410 #ifndef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
411 struct cmsghdr
*cmsg
;
412 for (cmsg
= CMSG_FIRSTHDR( &msghdr
); cmsg
; cmsg
= CMSG_NXTHDR( &msghdr
, cmsg
))
414 if (cmsg
->cmsg_level
!= SOL_SOCKET
) continue;
415 if (cmsg
->cmsg_type
== SCM_RIGHTS
) fd
= *(int *)CMSG_DATA(cmsg
);
416 #ifdef SCM_CREDENTIALS
417 else if (cmsg
->cmsg_type
== SCM_CREDENTIALS
)
419 struct ucred
*ucred
= (struct ucred
*)CMSG_DATA(cmsg
);
420 server_pid
= ucred
->pid
;
424 #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
425 if (fd
!= -1) fcntl( fd
, F_SETFD
, FD_CLOEXEC
); /* in case MSG_CMSG_CLOEXEC is not supported */
429 if (errno
== EINTR
) continue;
430 if (errno
== EPIPE
) break;
431 server_protocol_perror("recvmsg");
433 /* the server closed the connection; time to die... */
438 /***********************************************************************/
439 /* fd cache support */
441 struct fd_cache_entry
444 enum server_fd_type type
: 6;
445 unsigned int access
: 2;
446 unsigned int options
: 24;
449 #define FD_CACHE_BLOCK_SIZE (65536 / sizeof(struct fd_cache_entry))
450 #define FD_CACHE_ENTRIES 128
452 static struct fd_cache_entry
*fd_cache
[FD_CACHE_ENTRIES
];
453 static struct fd_cache_entry fd_cache_initial_block
[FD_CACHE_BLOCK_SIZE
];
455 static inline unsigned int handle_to_index( HANDLE handle
, unsigned int *entry
)
457 unsigned int idx
= (wine_server_obj_handle(handle
) >> 2) - 1;
458 *entry
= idx
/ FD_CACHE_BLOCK_SIZE
;
459 return idx
% FD_CACHE_BLOCK_SIZE
;
463 /***********************************************************************
466 * Caller must hold fd_cache_section.
468 static int add_fd_to_cache( HANDLE handle
, int fd
, enum server_fd_type type
,
469 unsigned int access
, unsigned int options
)
471 unsigned int entry
, idx
= handle_to_index( handle
, &entry
);
474 if (entry
>= FD_CACHE_ENTRIES
)
476 FIXME( "too many allocated handles, not caching %p\n", handle
);
480 if (!fd_cache
[entry
]) /* do we need to allocate a new block of entries? */
482 if (!entry
) fd_cache
[0] = fd_cache_initial_block
;
485 void *ptr
= wine_anon_mmap( NULL
, FD_CACHE_BLOCK_SIZE
* sizeof(struct fd_cache_entry
),
486 PROT_READ
| PROT_WRITE
, 0 );
487 if (ptr
== MAP_FAILED
) return 0;
488 fd_cache
[entry
] = ptr
;
491 /* store fd+1 so that 0 can be used as the unset value */
492 prev_fd
= interlocked_xchg( &fd_cache
[entry
][idx
].fd
, fd
+ 1 ) - 1;
493 fd_cache
[entry
][idx
].type
= type
;
494 fd_cache
[entry
][idx
].access
= access
;
495 fd_cache
[entry
][idx
].options
= options
;
496 if (prev_fd
!= -1) close( prev_fd
);
501 /***********************************************************************
504 * Caller must hold fd_cache_section.
506 static inline int get_cached_fd( HANDLE handle
, enum server_fd_type
*type
,
507 unsigned int *access
, unsigned int *options
)
509 unsigned int entry
, idx
= handle_to_index( handle
, &entry
);
512 if (entry
< FD_CACHE_ENTRIES
&& fd_cache
[entry
])
514 fd
= fd_cache
[entry
][idx
].fd
- 1;
515 if (type
) *type
= fd_cache
[entry
][idx
].type
;
516 if (access
) *access
= fd_cache
[entry
][idx
].access
;
517 if (options
) *options
= fd_cache
[entry
][idx
].options
;
523 /***********************************************************************
524 * server_remove_fd_from_cache
526 int server_remove_fd_from_cache( HANDLE handle
)
528 unsigned int entry
, idx
= handle_to_index( handle
, &entry
);
531 if (entry
< FD_CACHE_ENTRIES
&& fd_cache
[entry
])
532 fd
= interlocked_xchg( &fd_cache
[entry
][idx
].fd
, 0 ) - 1;
538 /***********************************************************************
541 * The returned unix_fd should be closed iff needs_close is non-zero.
543 int server_get_unix_fd( HANDLE handle
, unsigned int wanted_access
, int *unix_fd
,
544 int *needs_close
, enum server_fd_type
*type
, unsigned int *options
)
547 obj_handle_t fd_handle
;
549 unsigned int access
= 0;
553 wanted_access
&= FILE_READ_DATA
| FILE_WRITE_DATA
;
555 server_enter_uninterrupted_section( &fd_cache_section
, &sigset
);
557 fd
= get_cached_fd( handle
, type
, &access
, options
);
558 if (fd
!= -1) goto done
;
560 SERVER_START_REQ( get_handle_fd
)
562 req
->handle
= wine_server_obj_handle( handle
);
563 if (!(ret
= wine_server_call( req
)))
565 if (type
) *type
= reply
->type
;
566 if (options
) *options
= reply
->options
;
567 access
= reply
->access
;
568 if ((fd
= receive_fd( &fd_handle
)) != -1)
570 assert( wine_server_ptr_handle(fd_handle
) == handle
);
571 *needs_close
= (!reply
->cacheable
||
572 !add_fd_to_cache( handle
, fd
, reply
->type
,
573 reply
->access
, reply
->options
));
575 else ret
= STATUS_TOO_MANY_OPENED_FILES
;
581 server_leave_uninterrupted_section( &fd_cache_section
, &sigset
);
582 if (!ret
&& ((access
& wanted_access
) != wanted_access
))
584 ret
= STATUS_ACCESS_DENIED
;
585 if (*needs_close
) close( fd
);
587 if (!ret
) *unix_fd
= fd
;
592 /***********************************************************************
593 * wine_server_fd_to_handle (NTDLL.@)
595 * Allocate a file handle for a Unix file descriptor.
598 * fd [I] Unix file descriptor.
599 * access [I] Win32 access flags.
600 * attributes [I] Object attributes.
601 * handle [O] Address where Wine file handle will be stored.
606 int CDECL
wine_server_fd_to_handle( int fd
, unsigned int access
, unsigned int attributes
, HANDLE
*handle
)
611 wine_server_send_fd( fd
);
613 SERVER_START_REQ( alloc_file_handle
)
615 req
->access
= access
;
616 req
->attributes
= attributes
;
618 if (!(ret
= wine_server_call( req
))) *handle
= wine_server_ptr_handle( reply
->handle
);
625 /***********************************************************************
626 * wine_server_handle_to_fd (NTDLL.@)
628 * Retrieve the file descriptor corresponding to a file handle.
631 * handle [I] Wine file handle.
632 * access [I] Win32 file access rights requested.
633 * unix_fd [O] Address where Unix file descriptor will be stored.
634 * options [O] Address where the file open options will be stored. Optional.
639 int CDECL
wine_server_handle_to_fd( HANDLE handle
, unsigned int access
, int *unix_fd
,
640 unsigned int *options
)
642 int needs_close
, ret
= server_get_unix_fd( handle
, access
, unix_fd
, &needs_close
, NULL
, options
);
644 if (!ret
&& !needs_close
)
646 if ((*unix_fd
= dup(*unix_fd
)) == -1) ret
= FILE_GetNtStatus();
652 /***********************************************************************
653 * wine_server_release_fd (NTDLL.@)
655 * Release the Unix file descriptor returned by wine_server_handle_to_fd.
658 * handle [I] Wine file handle.
659 * unix_fd [I] Unix file descriptor to release.
664 void CDECL
wine_server_release_fd( HANDLE handle
, int unix_fd
)
670 /***********************************************************************
673 * Create a pipe for communicating with the server.
675 int server_pipe( int fd
[2] )
679 static int have_pipe2
= 1;
683 if (!(ret
= pipe2( fd
, O_CLOEXEC
))) return ret
;
684 if (errno
== ENOSYS
|| errno
== EINVAL
) have_pipe2
= 0; /* don't try again */
687 if (!(ret
= pipe( fd
)))
689 fcntl( fd
[0], F_SETFD
, FD_CLOEXEC
);
690 fcntl( fd
[1], F_SETFD
, FD_CLOEXEC
);
696 /***********************************************************************
699 * Start a new wine server.
701 static void start_server(void)
703 static int started
; /* we only try once */
705 static char wineserver
[] = "server/wineserver";
706 static char debug
[] = "-d";
712 if (pid
== -1) fatal_perror( "fork" );
715 argv
[0] = wineserver
;
716 argv
[1] = TRACE_ON(server
) ? debug
: NULL
;
718 wine_exec_wine_binary( argv
[0], argv
, getenv("WINESERVER") );
719 fatal_error( "could not exec wineserver\n" );
721 waitpid( pid
, &status
, 0 );
722 status
= WIFEXITED(status
) ? WEXITSTATUS(status
) : 1;
723 if (status
== 2) return; /* server lock held by someone else, will retry later */
724 if (status
) exit(status
); /* server failed */
730 /***********************************************************************
733 * Setup the wine configuration dir.
735 static void setup_config_dir(void)
737 const char *p
, *config_dir
= wine_get_config_dir();
739 if (chdir( config_dir
) == -1)
741 if (errno
!= ENOENT
) fatal_perror( "chdir to %s\n", config_dir
);
743 if ((p
= strrchr( config_dir
, '/' )) && p
!= config_dir
)
748 if (!(tmp_dir
= malloc( p
+ 1 - config_dir
))) fatal_error( "out of memory\n" );
749 memcpy( tmp_dir
, config_dir
, p
- config_dir
);
750 tmp_dir
[p
- config_dir
] = 0;
751 if (!stat( tmp_dir
, &st
) && st
.st_uid
!= getuid())
752 fatal_error( "'%s' is not owned by you, refusing to create a configuration directory there\n",
757 mkdir( config_dir
, 0777 );
758 if (chdir( config_dir
) == -1) fatal_perror( "chdir to %s\n", config_dir
);
760 if ((p
= getenv( "WINEARCH" )) && !strcmp( p
, "win32" ))
762 /* force creation of a 32-bit prefix */
763 int fd
= open( "system.reg", O_WRONLY
| O_CREAT
| O_EXCL
, 0666 );
766 static const char regfile
[] = "WINE REGISTRY Version 2\n\n#arch=win32\n";
767 write( fd
, regfile
, sizeof(regfile
) - 1 );
771 MESSAGE( "wine: created the configuration directory '%s'\n", config_dir
);
774 if (mkdir( "dosdevices", 0777 ) == -1)
776 if (errno
== EEXIST
) return;
777 fatal_perror( "cannot create %s/dosdevices\n", config_dir
);
780 /* create the drive symlinks */
782 mkdir( "drive_c", 0777 );
783 symlink( "../drive_c", "dosdevices/c:" );
784 symlink( "/", "dosdevices/z:" );
788 /***********************************************************************
789 * server_connect_error
791 * Try to display a meaningful explanation of why we couldn't connect
794 static void server_connect_error( const char *serverdir
)
799 if ((fd
= open( LOCKNAME
, O_WRONLY
)) == -1)
800 fatal_error( "for some mysterious reason, the wine server never started.\n" );
803 fl
.l_whence
= SEEK_SET
;
806 if (fcntl( fd
, F_GETLK
, &fl
) != -1)
808 if (fl
.l_type
== F_WRLCK
) /* the file is locked */
809 fatal_error( "a wine server seems to be running, but I cannot connect to it.\n"
810 " You probably need to kill that process (it might be pid %d).\n",
812 fatal_error( "for some mysterious reason, the wine server failed to run.\n" );
814 fatal_error( "the file system of '%s' doesn't support locks,\n"
815 " and there is a 'socket' file in that directory that prevents wine from starting.\n"
816 " You should make sure no wine server is running, remove that file and try again.\n",
821 /***********************************************************************
824 * Attempt to connect to an existing server socket.
825 * We need to be in the server directory already.
827 static int server_connect(void)
829 const char *serverdir
;
830 struct sockaddr_un addr
;
832 int s
, slen
, retry
, fd_cwd
;
834 /* retrieve the current directory */
835 fd_cwd
= open( ".", O_RDONLY
);
836 if (fd_cwd
!= -1) fcntl( fd_cwd
, F_SETFD
, 1 ); /* set close on exec flag */
839 serverdir
= wine_get_server_dir();
841 /* chdir to the server directory */
842 if (chdir( serverdir
) == -1)
844 if (errno
!= ENOENT
) fatal_perror( "chdir to %s", serverdir
);
846 if (chdir( serverdir
) == -1) fatal_perror( "chdir to %s", serverdir
);
849 /* make sure we are at the right place */
850 if (stat( ".", &st
) == -1) fatal_perror( "stat %s", serverdir
);
851 if (st
.st_uid
!= getuid()) fatal_error( "'%s' is not owned by you\n", serverdir
);
852 if (st
.st_mode
& 077) fatal_error( "'%s' must not be accessible by other users\n", serverdir
);
854 for (retry
= 0; retry
< 6; retry
++)
856 /* if not the first try, wait a bit to leave the previous server time to exit */
859 usleep( 100000 * retry
* retry
);
861 if (lstat( SOCKETNAME
, &st
) == -1) continue; /* still no socket, wait a bit more */
863 else if (lstat( SOCKETNAME
, &st
) == -1) /* check for an already existing socket */
865 if (errno
!= ENOENT
) fatal_perror( "lstat %s/%s", serverdir
, SOCKETNAME
);
867 if (lstat( SOCKETNAME
, &st
) == -1) continue; /* still no socket, wait a bit more */
870 /* make sure the socket is sane (ISFIFO needed for Solaris) */
871 if (!S_ISSOCK(st
.st_mode
) && !S_ISFIFO(st
.st_mode
))
872 fatal_error( "'%s/%s' is not a socket\n", serverdir
, SOCKETNAME
);
873 if (st
.st_uid
!= getuid())
874 fatal_error( "'%s/%s' is not owned by you\n", serverdir
, SOCKETNAME
);
876 /* try to connect to it */
877 addr
.sun_family
= AF_UNIX
;
878 strcpy( addr
.sun_path
, SOCKETNAME
);
879 slen
= sizeof(addr
) - sizeof(addr
.sun_path
) + strlen(addr
.sun_path
) + 1;
880 #ifdef HAVE_STRUCT_SOCKADDR_UN_SUN_LEN
883 if ((s
= socket( AF_UNIX
, SOCK_STREAM
, 0 )) == -1) fatal_perror( "socket" );
888 setsockopt( s
, SOL_SOCKET
, SO_PASSCRED
, &enable
, sizeof(enable
) );
891 if (connect( s
, (struct sockaddr
*)&addr
, slen
) != -1)
893 /* switch back to the starting directory */
899 fcntl( s
, F_SETFD
, 1 ); /* set close on exec flag */
904 server_connect_error( serverdir
);
909 #include <mach/mach.h>
910 #include <mach/mach_error.h>
911 #include <servers/bootstrap.h>
913 /* send our task port to the server */
914 static void send_server_task_port(void)
916 mach_port_t bootstrap_port
, wineserver_port
;
920 mach_msg_header_t header
;
921 mach_msg_body_t body
;
922 mach_msg_port_descriptor_t task_port
;
925 if (task_get_bootstrap_port(mach_task_self(), &bootstrap_port
) != KERN_SUCCESS
) return;
927 kret
= bootstrap_look_up(bootstrap_port
, (char*)wine_get_server_dir(), &wineserver_port
);
928 if (kret
!= KERN_SUCCESS
)
929 fatal_error( "cannot find the server port: 0x%08x\n", kret
);
931 mach_port_deallocate(mach_task_self(), bootstrap_port
);
933 msg
.header
.msgh_bits
= MACH_MSGH_BITS(MACH_MSG_TYPE_COPY_SEND
, 0) | MACH_MSGH_BITS_COMPLEX
;
934 msg
.header
.msgh_size
= sizeof(msg
);
935 msg
.header
.msgh_remote_port
= wineserver_port
;
936 msg
.header
.msgh_local_port
= MACH_PORT_NULL
;
938 msg
.body
.msgh_descriptor_count
= 1;
939 msg
.task_port
.name
= mach_task_self();
940 msg
.task_port
.disposition
= MACH_MSG_TYPE_COPY_SEND
;
941 msg
.task_port
.type
= MACH_MSG_PORT_DESCRIPTOR
;
943 kret
= mach_msg_send(&msg
.header
);
944 if (kret
!= KERN_SUCCESS
)
945 server_protocol_error( "mach_msg_send failed: 0x%08x\n", kret
);
947 mach_port_deallocate(mach_task_self(), wineserver_port
);
949 #endif /* __APPLE__ */
952 /***********************************************************************
955 * Retrieve the Unix tid to use on the server side for the current thread.
957 static int get_unix_tid(void)
960 #ifdef HAVE_PTHREAD_GETTHREADID_NP
961 ret
= pthread_getthreadid_np();
963 ret
= syscall( SYS_gettid
);
965 ret
= pthread_self();
966 #elif defined(__APPLE__)
967 ret
= mach_thread_self();
968 mach_port_deallocate(mach_task_self(), ret
);
969 #elif defined(__NetBSD__)
971 #elif defined(__FreeBSD__)
975 #elif defined(__DragonFly__)
982 /***********************************************************************
983 * server_init_process
985 * Start the server and create the initial socket pair.
987 void server_init_process(void)
989 obj_handle_t version
;
990 const char *env_socket
= getenv( "WINESERVERSOCKET" );
995 fd_socket
= atoi( env_socket
);
996 if (fcntl( fd_socket
, F_SETFD
, 1 ) == -1)
997 fatal_perror( "Bad server socket %d", fd_socket
);
998 unsetenv( "WINESERVERSOCKET" );
1000 else fd_socket
= server_connect();
1002 /* setup the signal mask */
1003 sigemptyset( &server_block_set
);
1004 sigaddset( &server_block_set
, SIGALRM
);
1005 sigaddset( &server_block_set
, SIGIO
);
1006 sigaddset( &server_block_set
, SIGINT
);
1007 sigaddset( &server_block_set
, SIGHUP
);
1008 sigaddset( &server_block_set
, SIGUSR1
);
1009 sigaddset( &server_block_set
, SIGUSR2
);
1010 sigaddset( &server_block_set
, SIGCHLD
);
1011 pthread_sigmask( SIG_BLOCK
, &server_block_set
, NULL
);
1013 /* receive the first thread request fd on the main socket */
1014 ntdll_get_thread_data()->request_fd
= receive_fd( &version
);
1017 /* now that we hopefully received the server_pid, disable SO_PASSCRED */
1020 setsockopt( fd_socket
, SOL_SOCKET
, SO_PASSCRED
, &enable
, sizeof(enable
) );
1024 if (version
!= SERVER_PROTOCOL_VERSION
)
1025 server_protocol_error( "version mismatch %d/%d.\n"
1026 "Your %s binary was not upgraded correctly,\n"
1027 "or you have an older one somewhere in your PATH.\n"
1028 "Or maybe the wrong wineserver is still running?\n",
1029 version
, SERVER_PROTOCOL_VERSION
,
1030 (version
> SERVER_PROTOCOL_VERSION
) ? "wine" : "wineserver" );
1032 send_server_task_port();
1034 #if defined(__linux__) && defined(HAVE_PRCTL)
1035 /* work around Ubuntu's ptrace breakage */
1036 if (server_pid
!= -1) prctl( 0x59616d61 /* PR_SET_PTRACER */, server_pid
);
1041 /***********************************************************************
1042 * server_init_process_done
1044 NTSTATUS
server_init_process_done(void)
1046 PEB
*peb
= NtCurrentTeb()->Peb
;
1047 IMAGE_NT_HEADERS
*nt
= RtlImageNtHeader( peb
->ImageBaseAddress
);
1050 /* Install signal handlers; this cannot be done earlier, since we cannot
1051 * send exceptions to the debugger before the create process event that
1052 * is sent by REQ_INIT_PROCESS_DONE.
1053 * We do need the handlers in place by the time the request is over, so
1054 * we set them up here. If we segfault between here and the server call
1055 * something is very wrong... */
1056 signal_init_process();
1058 /* Signal the parent process to continue */
1059 SERVER_START_REQ( init_process_done
)
1061 req
->module
= wine_server_client_ptr( peb
->ImageBaseAddress
);
1063 req
->ldt_copy
= wine_server_client_ptr( &wine_ldt_copy
);
1065 req
->entry
= wine_server_client_ptr( (char *)peb
->ImageBaseAddress
+ nt
->OptionalHeader
.AddressOfEntryPoint
);
1066 req
->gui
= (nt
->OptionalHeader
.Subsystem
!= IMAGE_SUBSYSTEM_WINDOWS_CUI
);
1067 status
= wine_server_call( req
);
1075 /***********************************************************************
1076 * server_init_thread
1078 * Send an init thread request. Return 0 if OK.
1080 size_t server_init_thread( void *entry_point
)
1082 static const int is_win64
= (sizeof(void *) > sizeof(int));
1083 const char *arch
= getenv( "WINEARCH" );
1086 struct sigaction sig_act
;
1089 sig_act
.sa_handler
= SIG_IGN
;
1090 sig_act
.sa_flags
= 0;
1091 sigemptyset( &sig_act
.sa_mask
);
1093 /* ignore SIGPIPE so that we get an EPIPE error instead */
1094 sigaction( SIGPIPE
, &sig_act
, NULL
);
1096 /* create the server->client communication pipes */
1097 if (server_pipe( reply_pipe
) == -1) server_protocol_perror( "pipe" );
1098 if (server_pipe( ntdll_get_thread_data()->wait_fd
) == -1) server_protocol_perror( "pipe" );
1099 wine_server_send_fd( reply_pipe
[1] );
1100 wine_server_send_fd( ntdll_get_thread_data()->wait_fd
[1] );
1101 ntdll_get_thread_data()->reply_fd
= reply_pipe
[0];
1102 close( reply_pipe
[1] );
1104 SERVER_START_REQ( init_thread
)
1106 req
->unix_pid
= getpid();
1107 req
->unix_tid
= get_unix_tid();
1108 req
->teb
= wine_server_client_ptr( NtCurrentTeb() );
1109 req
->entry
= wine_server_client_ptr( entry_point
);
1110 req
->reply_fd
= reply_pipe
[1];
1111 req
->wait_fd
= ntdll_get_thread_data()->wait_fd
[1];
1112 req
->debug_level
= (TRACE_ON(server
) != 0);
1113 req
->cpu
= client_cpu
;
1114 ret
= wine_server_call( req
);
1115 NtCurrentTeb()->ClientId
.UniqueProcess
= ULongToHandle(reply
->pid
);
1116 NtCurrentTeb()->ClientId
.UniqueThread
= ULongToHandle(reply
->tid
);
1117 info_size
= reply
->info_size
;
1118 server_start_time
= reply
->server_start
;
1119 server_cpus
= reply
->all_cpus
;
1123 is_wow64
= !is_win64
&& (server_cpus
& (1 << CPU_x86_64
)) != 0;
1124 ntdll_get_thread_data()->wow64_redir
= is_wow64
;
1128 case STATUS_SUCCESS
:
1131 if (!strcmp( arch
, "win32" ) && (is_win64
|| is_wow64
))
1132 fatal_error( "WINEARCH set to win32 but '%s' is a 64-bit installation.\n",
1133 wine_get_config_dir() );
1134 if (!strcmp( arch
, "win64" ) && !is_win64
&& !is_wow64
)
1135 fatal_error( "WINEARCH set to win64 but '%s' is a 32-bit installation.\n",
1136 wine_get_config_dir() );
1139 case STATUS_NOT_REGISTRY_FILE
:
1140 fatal_error( "'%s' is a 32-bit installation, it cannot support 64-bit applications.\n",
1141 wine_get_config_dir() );
1142 case STATUS_NOT_SUPPORTED
:
1144 fatal_error( "wineserver is 32-bit, it cannot support 64-bit applications.\n" );
1146 fatal_error( "'%s' is a 64-bit installation, it cannot be used with a 32-bit wineserver.\n",
1147 wine_get_config_dir() );
1149 server_protocol_error( "init_thread failed with status %x\n", ret
);