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>
55 #include <sys/ucontext.h>
63 #define WIN32_NO_STATUS
64 #include "wine/library.h"
65 #include "wine/server.h"
66 #include "wine/debug.h"
67 #include "ntdll_misc.h"
69 WINE_DEFAULT_DEBUG_CHANNEL(server);
71 /* Some versions of glibc don't define this */
76 #ifndef MSG_CMSG_CLOEXEC
77 #define MSG_CMSG_CLOEXEC 0
80 #define SOCKETNAME "socket" /* name of the socket file */
81 #define LOCKNAME "lock" /* name of the lock file */
84 static const enum cpu_type client_cpu = CPU_x86;
85 #elif defined(__x86_64__)
86 static const enum cpu_type client_cpu = CPU_x86_64;
87 #elif defined(__ALPHA__)
88 static const enum cpu_type client_cpu = CPU_ALPHA;
89 #elif defined(__powerpc__)
90 static const enum cpu_type client_cpu = CPU_POWERPC;
91 #elif defined(__sparc__)
92 static const enum cpu_type client_cpu = CPU_SPARC;
94 #error Unsupported CPU
97 unsigned int server_cpus = 0;
100 #ifndef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
101 /* data structure used to pass an fd with sendmsg/recvmsg */
106 size_t len; /* size of structure */
107 int level; /* SOL_SOCKET */
108 int type; /* SCM_RIGHTS */
110 int fd; /* fd to pass */
112 #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
114 timeout_t server_start_time = 0; /* time of server startup */
116 sigset_t server_block_set; /* signals to block during server calls */
117 static int fd_socket = -1; /* socket to exchange file descriptors with the server */
119 static RTL_CRITICAL_SECTION fd_cache_section;
120 static RTL_CRITICAL_SECTION_DEBUG critsect_debug =
122 0, 0, &fd_cache_section,
123 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
124 0, 0, { (DWORD_PTR)(__FILE__ ": fd_cache_section") }
126 static RTL_CRITICAL_SECTION fd_cache_section = { &critsect_debug, -1, 0, 0, 0, 0 };
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));
135 /* die on a fatal error; use only during initialization */
136 static void fatal_error( const char *err, ... )
140 va_start( args, err );
141 fprintf( stderr, "wine: " );
142 vfprintf( stderr, err, args );
147 /* die on a fatal error; use only during initialization */
148 static void fatal_perror( const char *err, ... )
152 va_start( args, err );
153 fprintf( stderr, "wine: " );
154 vfprintf( stderr, err, args );
161 /***********************************************************************
162 * server_protocol_error
164 void server_protocol_error( const char *err, ... )
168 va_start( args, err );
169 fprintf( stderr, "wine client error:%x: ", GetCurrentThreadId() );
170 vfprintf( stderr, err, args );
176 /***********************************************************************
177 * server_protocol_perror
179 void server_protocol_perror( const char *err )
181 fprintf( stderr, "wine client error:%x: ", GetCurrentThreadId() );
187 /***********************************************************************
190 * Send a request to the server.
192 static unsigned int send_request( const struct __server_request_info *req )
197 if (!req->u.req.request_header.request_size)
199 if ((ret = write( ntdll_get_thread_data()->request_fd, &req->u.req,
200 sizeof(req->u.req) )) == sizeof(req->u.req)) return STATUS_SUCCESS;
205 struct iovec vec[__SERVER_MAX_DATA+1];
207 vec[0].iov_base = (void *)&req->u.req;
208 vec[0].iov_len = sizeof(req->u.req);
209 for (i = 0; i < req->data_count; i++)
211 vec[i+1].iov_base = (void *)req->data[i].ptr;
212 vec[i+1].iov_len = req->data[i].size;
214 if ((ret = writev( ntdll_get_thread_data()->request_fd, vec, i+1 )) ==
215 req->u.req.request_header.request_size + sizeof(req->u.req)) return STATUS_SUCCESS;
218 if (ret >= 0) server_protocol_error( "partial write %d\n", ret );
219 if (errno == EPIPE) abort_thread(0);
220 if (errno == EFAULT) return STATUS_ACCESS_VIOLATION;
221 server_protocol_perror( "write" );
225 /***********************************************************************
228 * Read data from the reply buffer; helper for wait_reply.
230 static void read_reply_data( void *buffer, size_t size )
236 if ((ret = read( ntdll_get_thread_data()->reply_fd, buffer, size )) > 0)
238 if (!(size -= ret)) return;
239 buffer = (char *)buffer + ret;
243 if (errno == EINTR) continue;
244 if (errno == EPIPE) break;
245 server_protocol_perror("read");
247 /* the server closed the connection; time to die... */
252 /***********************************************************************
255 * Wait for a reply from the server.
257 static inline unsigned int wait_reply( struct __server_request_info *req )
259 read_reply_data( &req->u.reply, sizeof(req->u.reply) );
260 if (req->u.reply.reply_header.reply_size)
261 read_reply_data( req->reply_data, req->u.reply.reply_header.reply_size );
262 return req->u.reply.reply_header.error;
266 /***********************************************************************
267 * wine_server_call (NTDLL.@)
269 * Perform a server call.
272 * req_ptr [I/O] Function dependent data
275 * Depends on server function being called, but usually an NTSTATUS code.
278 * Use the SERVER_START_REQ and SERVER_END_REQ to help you fill out the
279 * server request structure for the particular call. E.g:
280 *| SERVER_START_REQ( event_op )
282 *| req->handle = handle;
283 *| req->op = SET_EVENT;
284 *| ret = wine_server_call( req );
288 unsigned int wine_server_call( void *req_ptr )
290 struct __server_request_info * const req = req_ptr;
294 pthread_sigmask( SIG_BLOCK, &server_block_set, &old_set );
295 ret = send_request( req );
296 if (!ret) ret = wait_reply( req );
297 pthread_sigmask( SIG_SETMASK, &old_set, NULL );
302 /***********************************************************************
303 * server_enter_uninterrupted_section
305 void server_enter_uninterrupted_section( RTL_CRITICAL_SECTION *cs, sigset_t *sigset )
307 pthread_sigmask( SIG_BLOCK, &server_block_set, sigset );
308 RtlEnterCriticalSection( cs );
312 /***********************************************************************
313 * server_leave_uninterrupted_section
315 void server_leave_uninterrupted_section( RTL_CRITICAL_SECTION *cs, sigset_t *sigset )
317 RtlLeaveCriticalSection( cs );
318 pthread_sigmask( SIG_SETMASK, sigset, NULL );
322 /***********************************************************************
323 * wine_server_send_fd (NTDLL.@)
325 * Send a file descriptor to the server.
328 * fd [I] file descriptor to send
333 void CDECL wine_server_send_fd( int fd )
335 #ifndef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
339 struct msghdr msghdr;
343 vec.iov_base = (void *)&data;
344 vec.iov_len = sizeof(data);
346 msghdr.msg_name = NULL;
347 msghdr.msg_namelen = 0;
348 msghdr.msg_iov = &vec;
349 msghdr.msg_iovlen = 1;
351 #ifdef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
352 msghdr.msg_accrights = (void *)&fd;
353 msghdr.msg_accrightslen = sizeof(fd);
354 #else /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
355 cmsg.header.len = sizeof(cmsg.header) + sizeof(fd);
356 cmsg.header.level = SOL_SOCKET;
357 cmsg.header.type = SCM_RIGHTS;
359 msghdr.msg_control = &cmsg;
360 msghdr.msg_controllen = sizeof(cmsg.header) + sizeof(fd);
361 msghdr.msg_flags = 0;
362 #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
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 )
388 #ifdef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
389 struct msghdr msghdr;
392 msghdr.msg_accrights = (void *)&fd;
393 msghdr.msg_accrightslen = sizeof(fd);
394 #else /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
395 struct msghdr msghdr;
398 cmsg.header.len = sizeof(cmsg.header) + sizeof(fd);
399 cmsg.header.level = SOL_SOCKET;
400 cmsg.header.type = SCM_RIGHTS;
402 msghdr.msg_control = &cmsg;
403 msghdr.msg_controllen = sizeof(cmsg.header) + sizeof(fd);
404 msghdr.msg_flags = 0;
405 #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
407 msghdr.msg_name = NULL;
408 msghdr.msg_namelen = 0;
409 msghdr.msg_iov = &vec;
410 msghdr.msg_iovlen = 1;
411 vec.iov_base = (void *)handle;
412 vec.iov_len = sizeof(*handle);
416 if ((ret = recvmsg( fd_socket, &msghdr, MSG_CMSG_CLOEXEC )) > 0)
418 #ifndef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
421 if (fd != -1) fcntl( fd, F_SETFD, FD_CLOEXEC ); /* in case MSG_CMSG_CLOEXEC is not supported */
425 if (errno == EINTR) continue;
426 if (errno == EPIPE) break;
427 server_protocol_perror("recvmsg");
429 /* the server closed the connection; time to die... */
434 /***********************************************************************/
435 /* fd cache support */
437 struct fd_cache_entry
440 enum server_fd_type type : 6;
441 unsigned int access : 2;
442 unsigned int options : 24;
445 #define FD_CACHE_BLOCK_SIZE (65536 / sizeof(struct fd_cache_entry))
446 #define FD_CACHE_ENTRIES 128
448 static struct fd_cache_entry *fd_cache[FD_CACHE_ENTRIES];
449 static struct fd_cache_entry fd_cache_initial_block[FD_CACHE_BLOCK_SIZE];
451 static inline unsigned int handle_to_index( HANDLE handle, unsigned int *entry )
453 unsigned int idx = (wine_server_obj_handle(handle) >> 2) - 1;
454 *entry = idx / FD_CACHE_BLOCK_SIZE;
455 return idx % FD_CACHE_BLOCK_SIZE;
459 /***********************************************************************
462 * Caller must hold fd_cache_section.
464 static int add_fd_to_cache( HANDLE handle, int fd, enum server_fd_type type,
465 unsigned int access, unsigned int options )
467 unsigned int entry, idx = handle_to_index( handle, &entry );
470 if (entry >= FD_CACHE_ENTRIES)
472 FIXME( "too many allocated handles, not caching %p\n", handle );
476 if (!fd_cache[entry]) /* do we need to allocate a new block of entries? */
478 if (!entry) fd_cache[0] = fd_cache_initial_block;
481 void *ptr = wine_anon_mmap( NULL, FD_CACHE_BLOCK_SIZE * sizeof(struct fd_cache_entry),
482 PROT_READ | PROT_WRITE, 0 );
483 if (ptr == MAP_FAILED) return 0;
484 fd_cache[entry] = ptr;
487 /* store fd+1 so that 0 can be used as the unset value */
488 prev_fd = interlocked_xchg( &fd_cache[entry][idx].fd, fd + 1 ) - 1;
489 fd_cache[entry][idx].type = type;
490 fd_cache[entry][idx].access = access;
491 fd_cache[entry][idx].options = options;
492 if (prev_fd != -1) close( prev_fd );
497 /***********************************************************************
500 * Caller must hold fd_cache_section.
502 static inline int get_cached_fd( HANDLE handle, enum server_fd_type *type,
503 unsigned int *access, unsigned int *options )
505 unsigned int entry, idx = handle_to_index( handle, &entry );
508 if (entry < FD_CACHE_ENTRIES && fd_cache[entry])
510 fd = fd_cache[entry][idx].fd - 1;
511 if (type) *type = fd_cache[entry][idx].type;
512 if (access) *access = fd_cache[entry][idx].access;
513 if (options) *options = fd_cache[entry][idx].options;
519 /***********************************************************************
520 * server_remove_fd_from_cache
522 int server_remove_fd_from_cache( HANDLE handle )
524 unsigned int entry, idx = handle_to_index( handle, &entry );
527 if (entry < FD_CACHE_ENTRIES && fd_cache[entry])
528 fd = interlocked_xchg( &fd_cache[entry][idx].fd, 0 ) - 1;
534 /***********************************************************************
537 * The returned unix_fd should be closed iff needs_close is non-zero.
539 int server_get_unix_fd( HANDLE handle, unsigned int wanted_access, int *unix_fd,
540 int *needs_close, enum server_fd_type *type, unsigned int *options )
543 obj_handle_t fd_handle;
545 unsigned int access = 0;
549 wanted_access &= FILE_READ_DATA | FILE_WRITE_DATA;
551 server_enter_uninterrupted_section( &fd_cache_section, &sigset );
553 fd = get_cached_fd( handle, type, &access, options );
554 if (fd != -1) goto done;
556 SERVER_START_REQ( get_handle_fd )
558 req->handle = wine_server_obj_handle( handle );
559 if (!(ret = wine_server_call( req )))
561 if (type) *type = reply->type;
562 if (options) *options = reply->options;
563 access = reply->access;
564 if ((fd = receive_fd( &fd_handle )) != -1)
566 assert( wine_server_ptr_handle(fd_handle) == handle );
567 *needs_close = (reply->removable ||
568 !add_fd_to_cache( handle, fd, reply->type,
569 reply->access, reply->options ));
571 else ret = STATUS_TOO_MANY_OPENED_FILES;
577 server_leave_uninterrupted_section( &fd_cache_section, &sigset );
578 if (!ret && ((access & wanted_access) != wanted_access))
580 ret = STATUS_ACCESS_DENIED;
581 if (*needs_close) close( fd );
583 if (!ret) *unix_fd = fd;
588 /***********************************************************************
589 * wine_server_fd_to_handle (NTDLL.@)
591 * Allocate a file handle for a Unix file descriptor.
594 * fd [I] Unix file descriptor.
595 * access [I] Win32 access flags.
596 * attributes [I] Object attributes.
597 * handle [O] Address where Wine file handle will be stored.
602 int CDECL wine_server_fd_to_handle( int fd, unsigned int access, unsigned int attributes, HANDLE *handle )
607 wine_server_send_fd( fd );
609 SERVER_START_REQ( alloc_file_handle )
611 req->access = access;
612 req->attributes = attributes;
614 if (!(ret = wine_server_call( req ))) *handle = wine_server_ptr_handle( reply->handle );
621 /***********************************************************************
622 * wine_server_handle_to_fd (NTDLL.@)
624 * Retrieve the file descriptor corresponding to a file handle.
627 * handle [I] Wine file handle.
628 * access [I] Win32 file access rights requested.
629 * unix_fd [O] Address where Unix file descriptor will be stored.
630 * options [O] Address where the file open options will be stored. Optional.
635 int CDECL wine_server_handle_to_fd( HANDLE handle, unsigned int access, int *unix_fd,
636 unsigned int *options )
638 int needs_close, ret = server_get_unix_fd( handle, access, unix_fd, &needs_close, NULL, options );
640 if (!ret && !needs_close)
642 if ((*unix_fd = dup(*unix_fd)) == -1) ret = FILE_GetNtStatus();
648 /***********************************************************************
649 * wine_server_release_fd (NTDLL.@)
651 * Release the Unix file descriptor returned by wine_server_handle_to_fd.
654 * handle [I] Wine file handle.
655 * unix_fd [I] Unix file descriptor to release.
660 void CDECL wine_server_release_fd( HANDLE handle, int unix_fd )
666 /***********************************************************************
669 * Create a pipe for communicating with the server.
671 int server_pipe( int fd[2] )
675 static int have_pipe2 = 1;
679 if (!(ret = pipe2( fd, O_CLOEXEC ))) return ret;
680 if (errno == ENOSYS || errno == EINVAL) have_pipe2 = 0; /* don't try again */
683 if (!(ret = pipe( fd )))
685 fcntl( fd[0], F_SETFD, FD_CLOEXEC );
686 fcntl( fd[1], F_SETFD, FD_CLOEXEC );
692 /***********************************************************************
695 * Start a new wine server.
697 static void start_server(void)
699 static int started; /* we only try once */
701 static char wineserver[] = "server/wineserver";
702 static char debug[] = "-d";
708 if (pid == -1) fatal_perror( "fork" );
711 argv[0] = wineserver;
712 argv[1] = TRACE_ON(server) ? debug : NULL;
714 wine_exec_wine_binary( argv[0], argv, getenv("WINESERVER") );
715 fatal_error( "could not exec wineserver\n" );
717 waitpid( pid, &status, 0 );
718 status = WIFEXITED(status) ? WEXITSTATUS(status) : 1;
719 if (status == 2) return; /* server lock held by someone else, will retry later */
720 if (status) exit(status); /* server failed */
726 /***********************************************************************
729 * Setup the wine configuration dir.
731 static void setup_config_dir(void)
733 const char *p, *config_dir = wine_get_config_dir();
735 if (chdir( config_dir ) == -1)
737 if (errno != ENOENT) fatal_perror( "chdir to %s\n", config_dir );
739 if ((p = strrchr( config_dir, '/' )) && p != config_dir)
744 if (!(tmp_dir = malloc( p + 1 - config_dir ))) fatal_error( "out of memory\n" );
745 memcpy( tmp_dir, config_dir, p - config_dir );
746 tmp_dir[p - config_dir] = 0;
747 if (!stat( tmp_dir, &st ) && st.st_uid != getuid())
748 fatal_error( "'%s' is not owned by you, refusing to create a configuration directory there\n",
753 mkdir( config_dir, 0777 );
754 if (chdir( config_dir ) == -1) fatal_perror( "chdir to %s\n", config_dir );
755 MESSAGE( "wine: created the configuration directory '%s'\n", config_dir );
758 if (mkdir( "dosdevices", 0777 ) == -1)
760 if (errno == EEXIST) return;
761 fatal_perror( "cannot create %s/dosdevices\n", config_dir );
764 /* create the drive symlinks */
766 mkdir( "drive_c", 0777 );
767 symlink( "../drive_c", "dosdevices/c:" );
768 symlink( "/", "dosdevices/z:" );
772 /***********************************************************************
773 * server_connect_error
775 * Try to display a meaningful explanation of why we couldn't connect
778 static void server_connect_error( const char *serverdir )
783 if ((fd = open( LOCKNAME, O_WRONLY )) == -1)
784 fatal_error( "for some mysterious reason, the wine server never started.\n" );
787 fl.l_whence = SEEK_SET;
790 if (fcntl( fd, F_GETLK, &fl ) != -1)
792 if (fl.l_type == F_WRLCK) /* the file is locked */
793 fatal_error( "a wine server seems to be running, but I cannot connect to it.\n"
794 " You probably need to kill that process (it might be pid %d).\n",
796 fatal_error( "for some mysterious reason, the wine server failed to run.\n" );
798 fatal_error( "the file system of '%s' doesn't support locks,\n"
799 " and there is a 'socket' file in that directory that prevents wine from starting.\n"
800 " You should make sure no wine server is running, remove that file and try again.\n",
805 /***********************************************************************
808 * Attempt to connect to an existing server socket.
809 * We need to be in the server directory already.
811 static int server_connect(void)
813 const char *serverdir;
814 struct sockaddr_un addr;
816 int s, slen, retry, fd_cwd;
818 /* retrieve the current directory */
819 fd_cwd = open( ".", O_RDONLY );
820 if (fd_cwd != -1) fcntl( fd_cwd, F_SETFD, 1 ); /* set close on exec flag */
823 serverdir = wine_get_server_dir();
825 /* chdir to the server directory */
826 if (chdir( serverdir ) == -1)
828 if (errno != ENOENT) fatal_perror( "chdir to %s", serverdir );
830 if (chdir( serverdir ) == -1) fatal_perror( "chdir to %s", serverdir );
833 /* make sure we are at the right place */
834 if (stat( ".", &st ) == -1) fatal_perror( "stat %s", serverdir );
835 if (st.st_uid != getuid()) fatal_error( "'%s' is not owned by you\n", serverdir );
836 if (st.st_mode & 077) fatal_error( "'%s' must not be accessible by other users\n", serverdir );
838 for (retry = 0; retry < 6; retry++)
840 /* if not the first try, wait a bit to leave the previous server time to exit */
843 usleep( 100000 * retry * retry );
845 if (lstat( SOCKETNAME, &st ) == -1) continue; /* still no socket, wait a bit more */
847 else if (lstat( SOCKETNAME, &st ) == -1) /* check for an already existing socket */
849 if (errno != ENOENT) fatal_perror( "lstat %s/%s", serverdir, SOCKETNAME );
851 if (lstat( SOCKETNAME, &st ) == -1) continue; /* still no socket, wait a bit more */
854 /* make sure the socket is sane (ISFIFO needed for Solaris) */
855 if (!S_ISSOCK(st.st_mode) && !S_ISFIFO(st.st_mode))
856 fatal_error( "'%s/%s' is not a socket\n", serverdir, SOCKETNAME );
857 if (st.st_uid != getuid())
858 fatal_error( "'%s/%s' is not owned by you\n", serverdir, SOCKETNAME );
860 /* try to connect to it */
861 addr.sun_family = AF_UNIX;
862 strcpy( addr.sun_path, SOCKETNAME );
863 slen = sizeof(addr) - sizeof(addr.sun_path) + strlen(addr.sun_path) + 1;
864 #ifdef HAVE_STRUCT_SOCKADDR_UN_SUN_LEN
867 if ((s = socket( AF_UNIX, SOCK_STREAM, 0 )) == -1) fatal_perror( "socket" );
868 if (connect( s, (struct sockaddr *)&addr, slen ) != -1)
870 /* switch back to the starting directory */
876 fcntl( s, F_SETFD, 1 ); /* set close on exec flag */
881 server_connect_error( serverdir );
886 #include <mach/mach.h>
887 #include <mach/mach_error.h>
888 #include <servers/bootstrap.h>
890 /* send our task port to the server */
891 static void send_server_task_port(void)
893 mach_port_t bootstrap_port, wineserver_port;
897 mach_msg_header_t header;
898 mach_msg_body_t body;
899 mach_msg_port_descriptor_t task_port;
902 if (task_get_bootstrap_port(mach_task_self(), &bootstrap_port) != KERN_SUCCESS) return;
904 kret = bootstrap_look_up(bootstrap_port, (char*)wine_get_server_dir(), &wineserver_port);
905 if (kret != KERN_SUCCESS)
906 fatal_error( "cannot find the server port: 0x%08x\n", kret );
908 mach_port_deallocate(mach_task_self(), bootstrap_port);
910 msg.header.msgh_bits = MACH_MSGH_BITS(MACH_MSG_TYPE_COPY_SEND, 0) | MACH_MSGH_BITS_COMPLEX;
911 msg.header.msgh_size = sizeof(msg);
912 msg.header.msgh_remote_port = wineserver_port;
913 msg.header.msgh_local_port = MACH_PORT_NULL;
915 msg.body.msgh_descriptor_count = 1;
916 msg.task_port.name = mach_task_self();
917 msg.task_port.disposition = MACH_MSG_TYPE_COPY_SEND;
918 msg.task_port.type = MACH_MSG_PORT_DESCRIPTOR;
920 kret = mach_msg_send(&msg.header);
921 if (kret != KERN_SUCCESS)
922 server_protocol_error( "mach_msg_send failed: 0x%08x\n", kret );
924 mach_port_deallocate(mach_task_self(), wineserver_port);
926 #endif /* __APPLE__ */
929 /***********************************************************************
932 * Retrieve the Unix tid to use on the server side for the current thread.
934 static int get_unix_tid(void)
937 #if defined(linux) && defined(__i386__)
938 __asm__("int $0x80" : "=a" (ret) : "0" (224) /* SYS_gettid */);
939 #elif defined(linux) && defined(__x86_64__)
940 __asm__("syscall" : "=a" (ret) : "0" (186) /* SYS_gettid */);
942 ret = pthread_self();
943 #elif defined(__APPLE__)
944 ret = mach_thread_self();
945 mach_port_deallocate(mach_task_self(), ret);
946 #elif defined(__FreeBSD__)
955 /***********************************************************************
956 * server_init_process
958 * Start the server and create the initial socket pair.
960 void server_init_process(void)
962 obj_handle_t version;
963 const char *env_socket = getenv( "WINESERVERSOCKET" );
967 fd_socket = atoi( env_socket );
968 if (fcntl( fd_socket, F_SETFD, 1 ) == -1)
969 fatal_perror( "Bad server socket %d", fd_socket );
970 unsetenv( "WINESERVERSOCKET" );
972 else fd_socket = server_connect();
974 /* setup the signal mask */
975 sigemptyset( &server_block_set );
976 sigaddset( &server_block_set, SIGALRM );
977 sigaddset( &server_block_set, SIGIO );
978 sigaddset( &server_block_set, SIGINT );
979 sigaddset( &server_block_set, SIGHUP );
980 sigaddset( &server_block_set, SIGUSR1 );
981 sigaddset( &server_block_set, SIGUSR2 );
982 sigaddset( &server_block_set, SIGCHLD );
983 pthread_sigmask( SIG_BLOCK, &server_block_set, NULL );
985 /* receive the first thread request fd on the main socket */
986 ntdll_get_thread_data()->request_fd = receive_fd( &version );
988 if (version != SERVER_PROTOCOL_VERSION)
989 server_protocol_error( "version mismatch %d/%d.\n"
990 "Your %s binary was not upgraded correctly,\n"
991 "or you have an older one somewhere in your PATH.\n"
992 "Or maybe the wrong wineserver is still running?\n",
993 version, SERVER_PROTOCOL_VERSION,
994 (version > SERVER_PROTOCOL_VERSION) ? "wine" : "wineserver" );
996 send_server_task_port();
1001 /***********************************************************************
1002 * server_init_process_done
1004 NTSTATUS server_init_process_done(void)
1006 PEB *peb = NtCurrentTeb()->Peb;
1007 IMAGE_NT_HEADERS *nt = RtlImageNtHeader( peb->ImageBaseAddress );
1010 /* Install signal handlers; this cannot be done earlier, since we cannot
1011 * send exceptions to the debugger before the create process event that
1012 * is sent by REQ_INIT_PROCESS_DONE.
1013 * We do need the handlers in place by the time the request is over, so
1014 * we set them up here. If we segfault between here and the server call
1015 * something is very wrong... */
1016 signal_init_process();
1018 /* Signal the parent process to continue */
1019 SERVER_START_REQ( init_process_done )
1021 req->module = wine_server_client_ptr( peb->ImageBaseAddress );
1023 req->ldt_copy = wine_server_client_ptr( &wine_ldt_copy );
1025 req->entry = wine_server_client_ptr( (char *)peb->ImageBaseAddress + nt->OptionalHeader.AddressOfEntryPoint );
1026 req->gui = (nt->OptionalHeader.Subsystem != IMAGE_SUBSYSTEM_WINDOWS_CUI);
1027 status = wine_server_call( req );
1035 /***********************************************************************
1036 * server_init_thread
1038 * Send an init thread request. Return 0 if OK.
1040 size_t server_init_thread( void *entry_point )
1044 struct sigaction sig_act;
1047 sig_act.sa_handler = SIG_IGN;
1048 sig_act.sa_flags = 0;
1049 sigemptyset( &sig_act.sa_mask );
1051 /* ignore SIGPIPE so that we get an EPIPE error instead */
1052 sigaction( SIGPIPE, &sig_act, NULL );
1053 /* automatic child reaping to avoid zombies */
1055 sig_act.sa_flags |= SA_NOCLDWAIT;
1057 sigaction( SIGCHLD, &sig_act, NULL );
1059 /* create the server->client communication pipes */
1060 if (server_pipe( reply_pipe ) == -1) server_protocol_perror( "pipe" );
1061 if (server_pipe( ntdll_get_thread_data()->wait_fd ) == -1) server_protocol_perror( "pipe" );
1062 wine_server_send_fd( reply_pipe[1] );
1063 wine_server_send_fd( ntdll_get_thread_data()->wait_fd[1] );
1064 ntdll_get_thread_data()->reply_fd = reply_pipe[0];
1065 close( reply_pipe[1] );
1067 SERVER_START_REQ( init_thread )
1069 req->unix_pid = getpid();
1070 req->unix_tid = get_unix_tid();
1071 req->teb = wine_server_client_ptr( NtCurrentTeb() );
1072 req->entry = wine_server_client_ptr( entry_point );
1073 req->reply_fd = reply_pipe[1];
1074 req->wait_fd = ntdll_get_thread_data()->wait_fd[1];
1075 req->debug_level = (TRACE_ON(server) != 0);
1076 req->cpu = client_cpu;
1077 ret = wine_server_call( req );
1078 NtCurrentTeb()->ClientId.UniqueProcess = ULongToHandle(reply->pid);
1079 NtCurrentTeb()->ClientId.UniqueThread = ULongToHandle(reply->tid);
1080 info_size = reply->info_size;
1081 server_start_time = reply->server_start;
1082 server_cpus = reply->all_cpus;
1087 is_wow64 = (server_cpus & (1 << CPU_x86_64)) != 0;
1089 ntdll_get_thread_data()->wow64_redir = is_wow64;
1093 if (ret == STATUS_NOT_SUPPORTED)
1095 static const char * const cpu_arch[] = { "x86", "x86_64", "Alpha", "PowerPC", "Sparc" };
1096 server_protocol_error( "the running wineserver doesn't support the %s architecture.\n",
1097 cpu_arch[client_cpu] );
1099 else server_protocol_error( "init_thread failed with status %x\n", ret );