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;
99 #ifndef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
100 /* data structure used to pass an fd with sendmsg/recvmsg */
105 size_t len; /* size of structure */
106 int level; /* SOL_SOCKET */
107 int type; /* SCM_RIGHTS */
109 int fd; /* fd to pass */
111 #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
113 timeout_t server_start_time = 0; /* time of server startup */
115 sigset_t server_block_set; /* signals to block during server calls */
116 static int fd_socket = -1; /* socket to exchange file descriptors with the server */
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 )
334 #ifndef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
338 struct msghdr msghdr;
342 vec.iov_base = (void *)&data;
343 vec.iov_len = sizeof(data);
345 msghdr.msg_name = NULL;
346 msghdr.msg_namelen = 0;
347 msghdr.msg_iov = &vec;
348 msghdr.msg_iovlen = 1;
350 #ifdef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
351 msghdr.msg_accrights = (void *)&fd;
352 msghdr.msg_accrightslen = sizeof(fd);
353 #else /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
354 cmsg.header.len = sizeof(cmsg.header) + sizeof(fd);
355 cmsg.header.level = SOL_SOCKET;
356 cmsg.header.type = SCM_RIGHTS;
358 msghdr.msg_control = &cmsg;
359 msghdr.msg_controllen = sizeof(cmsg.header) + sizeof(fd);
360 msghdr.msg_flags = 0;
361 #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
363 data.tid = GetCurrentThreadId();
368 if ((ret = sendmsg( fd_socket, &msghdr, 0 )) == sizeof(data)) return;
369 if (ret >= 0) server_protocol_error( "partial write %d\n", ret );
370 if (errno == EINTR) continue;
371 if (errno == EPIPE) abort_thread(0);
372 server_protocol_perror( "sendmsg" );
377 /***********************************************************************
380 * Receive a file descriptor passed from the server.
382 static int receive_fd( obj_handle_t *handle )
387 #ifdef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
388 struct msghdr msghdr;
391 msghdr.msg_accrights = (void *)&fd;
392 msghdr.msg_accrightslen = sizeof(fd);
393 #else /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
394 struct msghdr msghdr;
397 cmsg.header.len = sizeof(cmsg.header) + sizeof(fd);
398 cmsg.header.level = SOL_SOCKET;
399 cmsg.header.type = SCM_RIGHTS;
401 msghdr.msg_control = &cmsg;
402 msghdr.msg_controllen = sizeof(cmsg.header) + sizeof(fd);
403 msghdr.msg_flags = 0;
404 #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
406 msghdr.msg_name = NULL;
407 msghdr.msg_namelen = 0;
408 msghdr.msg_iov = &vec;
409 msghdr.msg_iovlen = 1;
410 vec.iov_base = (void *)handle;
411 vec.iov_len = sizeof(*handle);
415 if ((ret = recvmsg( fd_socket, &msghdr, MSG_CMSG_CLOEXEC )) > 0)
417 #ifndef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
420 if (fd != -1) fcntl( fd, F_SETFD, FD_CLOEXEC ); /* in case MSG_CMSG_CLOEXEC is not supported */
424 if (errno == EINTR) continue;
425 if (errno == EPIPE) break;
426 server_protocol_perror("recvmsg");
428 /* the server closed the connection; time to die... */
433 /***********************************************************************/
434 /* fd cache support */
436 struct fd_cache_entry
439 enum server_fd_type type : 6;
440 unsigned int access : 2;
441 unsigned int options : 24;
444 #define FD_CACHE_BLOCK_SIZE (65536 / sizeof(struct fd_cache_entry))
445 #define FD_CACHE_ENTRIES 128
447 static struct fd_cache_entry *fd_cache[FD_CACHE_ENTRIES];
448 static struct fd_cache_entry fd_cache_initial_block[FD_CACHE_BLOCK_SIZE];
450 static inline unsigned int handle_to_index( HANDLE handle, unsigned int *entry )
452 unsigned int idx = (wine_server_obj_handle(handle) >> 2) - 1;
453 *entry = idx / FD_CACHE_BLOCK_SIZE;
454 return idx % FD_CACHE_BLOCK_SIZE;
458 /***********************************************************************
461 * Caller must hold fd_cache_section.
463 static int add_fd_to_cache( HANDLE handle, int fd, enum server_fd_type type,
464 unsigned int access, unsigned int options )
466 unsigned int entry, idx = handle_to_index( handle, &entry );
469 if (entry >= FD_CACHE_ENTRIES)
471 FIXME( "too many allocated handles, not caching %p\n", handle );
475 if (!fd_cache[entry]) /* do we need to allocate a new block of entries? */
477 if (!entry) fd_cache[0] = fd_cache_initial_block;
480 void *ptr = wine_anon_mmap( NULL, FD_CACHE_BLOCK_SIZE * sizeof(struct fd_cache_entry),
481 PROT_READ | PROT_WRITE, 0 );
482 if (ptr == MAP_FAILED) return 0;
483 fd_cache[entry] = ptr;
486 /* store fd+1 so that 0 can be used as the unset value */
487 prev_fd = interlocked_xchg( &fd_cache[entry][idx].fd, fd + 1 ) - 1;
488 fd_cache[entry][idx].type = type;
489 fd_cache[entry][idx].access = access;
490 fd_cache[entry][idx].options = options;
491 if (prev_fd != -1) close( prev_fd );
496 /***********************************************************************
499 * Caller must hold fd_cache_section.
501 static inline int get_cached_fd( HANDLE handle, enum server_fd_type *type,
502 unsigned int *access, unsigned int *options )
504 unsigned int entry, idx = handle_to_index( handle, &entry );
507 if (entry < FD_CACHE_ENTRIES && fd_cache[entry])
509 fd = fd_cache[entry][idx].fd - 1;
510 if (type) *type = fd_cache[entry][idx].type;
511 if (access) *access = fd_cache[entry][idx].access;
512 if (options) *options = fd_cache[entry][idx].options;
518 /***********************************************************************
519 * server_remove_fd_from_cache
521 int server_remove_fd_from_cache( HANDLE handle )
523 unsigned int entry, idx = handle_to_index( handle, &entry );
526 if (entry < FD_CACHE_ENTRIES && fd_cache[entry])
527 fd = interlocked_xchg( &fd_cache[entry][idx].fd, 0 ) - 1;
533 /***********************************************************************
536 * The returned unix_fd should be closed iff needs_close is non-zero.
538 int server_get_unix_fd( HANDLE handle, unsigned int wanted_access, int *unix_fd,
539 int *needs_close, enum server_fd_type *type, unsigned int *options )
542 obj_handle_t fd_handle;
544 unsigned int access = 0;
548 wanted_access &= FILE_READ_DATA | FILE_WRITE_DATA;
550 server_enter_uninterrupted_section( &fd_cache_section, &sigset );
552 fd = get_cached_fd( handle, type, &access, options );
553 if (fd != -1) goto done;
555 SERVER_START_REQ( get_handle_fd )
557 req->handle = wine_server_obj_handle( handle );
558 if (!(ret = wine_server_call( req )))
560 if (type) *type = reply->type;
561 if (options) *options = reply->options;
562 access = reply->access;
563 if ((fd = receive_fd( &fd_handle )) != -1)
565 assert( wine_server_ptr_handle(fd_handle) == handle );
566 *needs_close = (reply->removable ||
567 !add_fd_to_cache( handle, fd, reply->type,
568 reply->access, reply->options ));
570 else ret = STATUS_TOO_MANY_OPENED_FILES;
576 server_leave_uninterrupted_section( &fd_cache_section, &sigset );
577 if (!ret && ((access & wanted_access) != wanted_access))
579 ret = STATUS_ACCESS_DENIED;
580 if (*needs_close) close( fd );
582 if (!ret) *unix_fd = fd;
587 /***********************************************************************
588 * wine_server_fd_to_handle (NTDLL.@)
590 * Allocate a file handle for a Unix file descriptor.
593 * fd [I] Unix file descriptor.
594 * access [I] Win32 access flags.
595 * attributes [I] Object attributes.
596 * handle [O] Address where Wine file handle will be stored.
601 int CDECL wine_server_fd_to_handle( int fd, unsigned int access, unsigned int attributes, HANDLE *handle )
606 wine_server_send_fd( fd );
608 SERVER_START_REQ( alloc_file_handle )
610 req->access = access;
611 req->attributes = attributes;
613 if (!(ret = wine_server_call( req ))) *handle = wine_server_ptr_handle( reply->handle );
620 /***********************************************************************
621 * wine_server_handle_to_fd (NTDLL.@)
623 * Retrieve the file descriptor corresponding to a file handle.
626 * handle [I] Wine file handle.
627 * access [I] Win32 file access rights requested.
628 * unix_fd [O] Address where Unix file descriptor will be stored.
629 * options [O] Address where the file open options will be stored. Optional.
634 int CDECL wine_server_handle_to_fd( HANDLE handle, unsigned int access, int *unix_fd,
635 unsigned int *options )
637 int needs_close, ret = server_get_unix_fd( handle, access, unix_fd, &needs_close, NULL, options );
639 if (!ret && !needs_close)
641 if ((*unix_fd = dup(*unix_fd)) == -1) ret = FILE_GetNtStatus();
647 /***********************************************************************
648 * wine_server_release_fd (NTDLL.@)
650 * Release the Unix file descriptor returned by wine_server_handle_to_fd.
653 * handle [I] Wine file handle.
654 * unix_fd [I] Unix file descriptor to release.
659 void CDECL wine_server_release_fd( HANDLE handle, int unix_fd )
665 /***********************************************************************
668 * Create a pipe for communicating with the server.
670 int server_pipe( int fd[2] )
674 static int have_pipe2 = 1;
678 if (!(ret = pipe2( fd, O_CLOEXEC ))) return ret;
679 if (errno == ENOSYS || errno == EINVAL) have_pipe2 = 0; /* don't try again */
682 if (!(ret = pipe( fd )))
684 fcntl( fd[0], F_SETFD, FD_CLOEXEC );
685 fcntl( fd[1], F_SETFD, FD_CLOEXEC );
691 /***********************************************************************
694 * Start a new wine server.
696 static void start_server(void)
698 static int started; /* we only try once */
700 static char wineserver[] = "server/wineserver";
701 static char debug[] = "-d";
707 if (pid == -1) fatal_perror( "fork" );
710 argv[0] = wineserver;
711 argv[1] = TRACE_ON(server) ? debug : NULL;
713 wine_exec_wine_binary( argv[0], argv, getenv("WINESERVER") );
714 fatal_error( "could not exec wineserver\n" );
716 waitpid( pid, &status, 0 );
717 status = WIFEXITED(status) ? WEXITSTATUS(status) : 1;
718 if (status == 2) return; /* server lock held by someone else, will retry later */
719 if (status) exit(status); /* server failed */
725 /***********************************************************************
728 * Setup the wine configuration dir.
730 static void setup_config_dir(void)
732 const char *p, *config_dir = wine_get_config_dir();
734 if (chdir( config_dir ) == -1)
736 if (errno != ENOENT) fatal_perror( "chdir to %s\n", config_dir );
738 if ((p = strrchr( config_dir, '/' )) && p != config_dir)
743 if (!(tmp_dir = malloc( p + 1 - config_dir ))) fatal_error( "out of memory\n" );
744 memcpy( tmp_dir, config_dir, p - config_dir );
745 tmp_dir[p - config_dir] = 0;
746 if (!stat( tmp_dir, &st ) && st.st_uid != getuid())
747 fatal_error( "'%s' is not owned by you, refusing to create a configuration directory there\n",
752 mkdir( config_dir, 0777 );
753 if (chdir( config_dir ) == -1) fatal_perror( "chdir to %s\n", config_dir );
754 MESSAGE( "wine: created the configuration directory '%s'\n", config_dir );
757 if (mkdir( "dosdevices", 0777 ) == -1)
759 if (errno == EEXIST) return;
760 fatal_perror( "cannot create %s/dosdevices\n", config_dir );
763 /* create the drive symlinks */
765 mkdir( "drive_c", 0777 );
766 symlink( "../drive_c", "dosdevices/c:" );
767 symlink( "/", "dosdevices/z:" );
771 /***********************************************************************
772 * server_connect_error
774 * Try to display a meaningful explanation of why we couldn't connect
777 static void server_connect_error( const char *serverdir )
782 if ((fd = open( LOCKNAME, O_WRONLY )) == -1)
783 fatal_error( "for some mysterious reason, the wine server never started.\n" );
786 fl.l_whence = SEEK_SET;
789 if (fcntl( fd, F_GETLK, &fl ) != -1)
791 if (fl.l_type == F_WRLCK) /* the file is locked */
792 fatal_error( "a wine server seems to be running, but I cannot connect to it.\n"
793 " You probably need to kill that process (it might be pid %d).\n",
795 fatal_error( "for some mysterious reason, the wine server failed to run.\n" );
797 fatal_error( "the file system of '%s' doesn't support locks,\n"
798 " and there is a 'socket' file in that directory that prevents wine from starting.\n"
799 " You should make sure no wine server is running, remove that file and try again.\n",
804 /***********************************************************************
807 * Attempt to connect to an existing server socket.
808 * We need to be in the server directory already.
810 static int server_connect(void)
812 const char *serverdir;
813 struct sockaddr_un addr;
815 int s, slen, retry, fd_cwd;
817 /* retrieve the current directory */
818 fd_cwd = open( ".", O_RDONLY );
819 if (fd_cwd != -1) fcntl( fd_cwd, F_SETFD, 1 ); /* set close on exec flag */
822 serverdir = wine_get_server_dir();
824 /* chdir to the server directory */
825 if (chdir( serverdir ) == -1)
827 if (errno != ENOENT) fatal_perror( "chdir to %s", serverdir );
829 if (chdir( serverdir ) == -1) fatal_perror( "chdir to %s", serverdir );
832 /* make sure we are at the right place */
833 if (stat( ".", &st ) == -1) fatal_perror( "stat %s", serverdir );
834 if (st.st_uid != getuid()) fatal_error( "'%s' is not owned by you\n", serverdir );
835 if (st.st_mode & 077) fatal_error( "'%s' must not be accessible by other users\n", serverdir );
837 for (retry = 0; retry < 6; retry++)
839 /* if not the first try, wait a bit to leave the previous server time to exit */
842 usleep( 100000 * retry * retry );
844 if (lstat( SOCKETNAME, &st ) == -1) continue; /* still no socket, wait a bit more */
846 else if (lstat( SOCKETNAME, &st ) == -1) /* check for an already existing socket */
848 if (errno != ENOENT) fatal_perror( "lstat %s/%s", serverdir, SOCKETNAME );
850 if (lstat( SOCKETNAME, &st ) == -1) continue; /* still no socket, wait a bit more */
853 /* make sure the socket is sane (ISFIFO needed for Solaris) */
854 if (!S_ISSOCK(st.st_mode) && !S_ISFIFO(st.st_mode))
855 fatal_error( "'%s/%s' is not a socket\n", serverdir, SOCKETNAME );
856 if (st.st_uid != getuid())
857 fatal_error( "'%s/%s' is not owned by you\n", serverdir, SOCKETNAME );
859 /* try to connect to it */
860 addr.sun_family = AF_UNIX;
861 strcpy( addr.sun_path, SOCKETNAME );
862 slen = sizeof(addr) - sizeof(addr.sun_path) + strlen(addr.sun_path) + 1;
863 #ifdef HAVE_STRUCT_SOCKADDR_UN_SUN_LEN
866 if ((s = socket( AF_UNIX, SOCK_STREAM, 0 )) == -1) fatal_perror( "socket" );
867 if (connect( s, (struct sockaddr *)&addr, slen ) != -1)
869 /* switch back to the starting directory */
875 fcntl( s, F_SETFD, 1 ); /* set close on exec flag */
880 server_connect_error( serverdir );
885 #include <mach/mach.h>
886 #include <mach/mach_error.h>
887 #include <servers/bootstrap.h>
889 /* send our task port to the server */
890 static void send_server_task_port(void)
892 mach_port_t bootstrap_port, wineserver_port;
896 mach_msg_header_t header;
897 mach_msg_body_t body;
898 mach_msg_port_descriptor_t task_port;
901 if (task_get_bootstrap_port(mach_task_self(), &bootstrap_port) != KERN_SUCCESS) return;
903 kret = bootstrap_look_up(bootstrap_port, (char*)wine_get_server_dir(), &wineserver_port);
904 if (kret != KERN_SUCCESS)
905 fatal_error( "cannot find the server port: 0x%08x\n", kret );
907 mach_port_deallocate(mach_task_self(), bootstrap_port);
909 msg.header.msgh_bits = MACH_MSGH_BITS(MACH_MSG_TYPE_COPY_SEND, 0) | MACH_MSGH_BITS_COMPLEX;
910 msg.header.msgh_size = sizeof(msg);
911 msg.header.msgh_remote_port = wineserver_port;
912 msg.header.msgh_local_port = MACH_PORT_NULL;
914 msg.body.msgh_descriptor_count = 1;
915 msg.task_port.name = mach_task_self();
916 msg.task_port.disposition = MACH_MSG_TYPE_COPY_SEND;
917 msg.task_port.type = MACH_MSG_PORT_DESCRIPTOR;
919 kret = mach_msg_send(&msg.header);
920 if (kret != KERN_SUCCESS)
921 server_protocol_error( "mach_msg_send failed: 0x%08x\n", kret );
923 mach_port_deallocate(mach_task_self(), wineserver_port);
925 #endif /* __APPLE__ */
928 /***********************************************************************
931 * Retrieve the Unix tid to use on the server side for the current thread.
933 static int get_unix_tid(void)
936 #if defined(linux) && defined(__i386__)
937 __asm__("int $0x80" : "=a" (ret) : "0" (224) /* SYS_gettid */);
938 #elif defined(linux) && defined(__x86_64__)
939 __asm__("syscall" : "=a" (ret) : "0" (186) /* SYS_gettid */);
941 ret = pthread_self();
942 #elif defined(__APPLE__)
943 ret = mach_thread_self();
944 #elif defined(__FreeBSD__)
953 /***********************************************************************
954 * server_init_process
956 * Start the server and create the initial socket pair.
958 void server_init_process(void)
960 obj_handle_t version;
961 const char *env_socket = getenv( "WINESERVERSOCKET" );
965 fd_socket = atoi( env_socket );
966 if (fcntl( fd_socket, F_SETFD, 1 ) == -1)
967 fatal_perror( "Bad server socket %d", fd_socket );
968 unsetenv( "WINESERVERSOCKET" );
970 else fd_socket = server_connect();
972 /* setup the signal mask */
973 sigemptyset( &server_block_set );
974 sigaddset( &server_block_set, SIGALRM );
975 sigaddset( &server_block_set, SIGIO );
976 sigaddset( &server_block_set, SIGINT );
977 sigaddset( &server_block_set, SIGHUP );
978 sigaddset( &server_block_set, SIGUSR1 );
979 sigaddset( &server_block_set, SIGUSR2 );
980 sigaddset( &server_block_set, SIGCHLD );
981 pthread_sigmask( SIG_BLOCK, &server_block_set, NULL );
983 /* receive the first thread request fd on the main socket */
984 ntdll_get_thread_data()->request_fd = receive_fd( &version );
986 if (version != SERVER_PROTOCOL_VERSION)
987 server_protocol_error( "version mismatch %d/%d.\n"
988 "Your %s binary was not upgraded correctly,\n"
989 "or you have an older one somewhere in your PATH.\n"
990 "Or maybe the wrong wineserver is still running?\n",
991 version, SERVER_PROTOCOL_VERSION,
992 (version > SERVER_PROTOCOL_VERSION) ? "wine" : "wineserver" );
994 send_server_task_port();
999 /***********************************************************************
1000 * server_init_process_done
1002 NTSTATUS server_init_process_done(void)
1004 PEB *peb = NtCurrentTeb()->Peb;
1005 IMAGE_NT_HEADERS *nt = RtlImageNtHeader( peb->ImageBaseAddress );
1008 /* Install signal handlers; this cannot be done earlier, since we cannot
1009 * send exceptions to the debugger before the create process event that
1010 * is sent by REQ_INIT_PROCESS_DONE.
1011 * We do need the handlers in place by the time the request is over, so
1012 * we set them up here. If we segfault between here and the server call
1013 * something is very wrong... */
1014 signal_init_process();
1016 /* Signal the parent process to continue */
1017 SERVER_START_REQ( init_process_done )
1019 req->module = wine_server_client_ptr( peb->ImageBaseAddress );
1021 req->ldt_copy = wine_server_client_ptr( &wine_ldt_copy );
1023 req->entry = wine_server_client_ptr( (char *)peb->ImageBaseAddress + nt->OptionalHeader.AddressOfEntryPoint );
1024 req->gui = (nt->OptionalHeader.Subsystem != IMAGE_SUBSYSTEM_WINDOWS_CUI);
1025 status = wine_server_call( req );
1033 /***********************************************************************
1034 * server_init_thread
1036 * Send an init thread request. Return 0 if OK.
1038 size_t server_init_thread( void *entry_point )
1042 struct sigaction sig_act;
1045 sig_act.sa_handler = SIG_IGN;
1046 sig_act.sa_flags = 0;
1047 sigemptyset( &sig_act.sa_mask );
1049 /* ignore SIGPIPE so that we get an EPIPE error instead */
1050 sigaction( SIGPIPE, &sig_act, NULL );
1051 /* automatic child reaping to avoid zombies */
1053 sig_act.sa_flags |= SA_NOCLDWAIT;
1055 sigaction( SIGCHLD, &sig_act, NULL );
1057 /* create the server->client communication pipes */
1058 if (server_pipe( reply_pipe ) == -1) server_protocol_perror( "pipe" );
1059 if (server_pipe( ntdll_get_thread_data()->wait_fd ) == -1) server_protocol_perror( "pipe" );
1060 wine_server_send_fd( reply_pipe[1] );
1061 wine_server_send_fd( ntdll_get_thread_data()->wait_fd[1] );
1062 ntdll_get_thread_data()->reply_fd = reply_pipe[0];
1063 close( reply_pipe[1] );
1065 SERVER_START_REQ( init_thread )
1067 req->unix_pid = getpid();
1068 req->unix_tid = get_unix_tid();
1069 req->teb = wine_server_client_ptr( NtCurrentTeb() );
1070 req->entry = wine_server_client_ptr( entry_point );
1071 req->reply_fd = reply_pipe[1];
1072 req->wait_fd = ntdll_get_thread_data()->wait_fd[1];
1073 req->debug_level = (TRACE_ON(server) != 0);
1074 req->cpu = client_cpu;
1075 ret = wine_server_call( req );
1076 NtCurrentTeb()->ClientId.UniqueProcess = ULongToHandle(reply->pid);
1077 NtCurrentTeb()->ClientId.UniqueThread = ULongToHandle(reply->tid);
1078 info_size = reply->info_size;
1079 server_start_time = reply->server_start;
1080 server_cpus = reply->all_cpus;
1086 if (ret == STATUS_NOT_SUPPORTED)
1088 static const char * const cpu_arch[] = { "x86", "x86_64", "Alpha", "PowerPC", "Sparc" };
1089 server_protocol_error( "the running wineserver doesn't support the %s architecture.\n",
1090 cpu_arch[client_cpu] );
1092 else server_protocol_error( "init_thread failed with status %x\n", ret );