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"
33 #include <sys/types.h>
34 #ifdef HAVE_SYS_SOCKET_H
35 # include <sys/socket.h>
37 #ifdef HAVE_SYS_WAIT_H
43 #ifdef HAVE_SYS_MMAN_H
46 #ifdef HAVE_SYS_STAT_H
47 # include <sys/stat.h>
57 #define WIN32_NO_STATUS
58 #include "wine/library.h"
59 #include "wine/pthread.h"
60 #include "wine/server.h"
61 #include "wine/debug.h"
62 #include "ntdll_misc.h"
64 WINE_DEFAULT_DEBUG_CHANNEL(server);
66 /* Some versions of glibc don't define this */
71 #define SOCKETNAME "socket" /* name of the socket file */
72 #define LOCKNAME "lock" /* name of the lock file */
74 #ifndef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
75 /* data structure used to pass an fd with sendmsg/recvmsg */
80 size_t len; /* size of structure */
81 int level; /* SOL_SOCKET */
82 int type; /* SCM_RIGHTS */
84 int fd; /* fd to pass */
86 #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
88 abs_time_t server_start_time = { 0, 0 }; /* time of server startup */
90 extern struct wine_pthread_functions pthread_functions;
92 sigset_t server_block_set; /* signals to block during server calls */
93 static int fd_socket = -1; /* socket to exchange file descriptors with the server */
95 static RTL_CRITICAL_SECTION fd_cache_section;
96 static RTL_CRITICAL_SECTION_DEBUG critsect_debug =
98 0, 0, &fd_cache_section,
99 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
100 0, 0, { (DWORD_PTR)(__FILE__ ": fd_cache_section") }
102 static RTL_CRITICAL_SECTION fd_cache_section = { &critsect_debug, -1, 0, 0, 0, 0 };
106 static void fatal_error( const char *err, ... ) __attribute__((noreturn, format(printf,1,2)));
107 static void fatal_perror( const char *err, ... ) __attribute__((noreturn, format(printf,1,2)));
108 static void server_connect_error( const char *serverdir ) __attribute__((noreturn));
111 /* die on a fatal error; use only during initialization */
112 static void fatal_error( const char *err, ... )
116 va_start( args, err );
117 fprintf( stderr, "wine: " );
118 vfprintf( stderr, err, args );
123 /* die on a fatal error; use only during initialization */
124 static void fatal_perror( const char *err, ... )
128 va_start( args, err );
129 fprintf( stderr, "wine: " );
130 vfprintf( stderr, err, args );
137 /***********************************************************************
140 void server_exit_thread( int status )
142 struct wine_pthread_thread_info info;
147 RemoveEntryList( &NtCurrentTeb()->TlsLinks );
150 info.stack_base = NtCurrentTeb()->DeallocationStack;
151 info.teb_base = NtCurrentTeb();
152 info.teb_sel = wine_get_fs();
153 info.exit_status = status;
155 fds[0] = ntdll_get_thread_data()->wait_fd[0];
156 fds[1] = ntdll_get_thread_data()->wait_fd[1];
157 fds[2] = ntdll_get_thread_data()->reply_fd;
158 fds[3] = ntdll_get_thread_data()->request_fd;
159 pthread_functions.sigprocmask( SIG_BLOCK, &server_block_set, NULL );
162 NtFreeVirtualMemory( GetCurrentProcess(), &info.stack_base, &size, MEM_RELEASE | MEM_SYSTEM );
163 info.stack_size = size;
166 NtFreeVirtualMemory( GetCurrentProcess(), &info.teb_base, &size, MEM_RELEASE | MEM_SYSTEM );
167 info.teb_size = size;
173 pthread_functions.exit_thread( &info );
177 /***********************************************************************
178 * server_abort_thread
180 void server_abort_thread( int status )
182 pthread_functions.sigprocmask( SIG_BLOCK, &server_block_set, NULL );
183 close( ntdll_get_thread_data()->wait_fd[0] );
184 close( ntdll_get_thread_data()->wait_fd[1] );
185 close( ntdll_get_thread_data()->reply_fd );
186 close( ntdll_get_thread_data()->request_fd );
187 pthread_functions.abort_thread( status );
191 /***********************************************************************
192 * server_protocol_error
194 void server_protocol_error( const char *err, ... )
198 va_start( args, err );
199 fprintf( stderr, "wine client error:%x: ", GetCurrentThreadId() );
200 vfprintf( stderr, err, args );
202 server_abort_thread(1);
206 /***********************************************************************
207 * server_protocol_perror
209 void server_protocol_perror( const char *err )
211 fprintf( stderr, "wine client error:%x: ", GetCurrentThreadId() );
213 server_abort_thread(1);
217 /***********************************************************************
220 * Send a request to the server.
222 static void send_request( const struct __server_request_info *req )
227 if (!req->u.req.request_header.request_size)
229 if ((ret = write( ntdll_get_thread_data()->request_fd, &req->u.req,
230 sizeof(req->u.req) )) == sizeof(req->u.req)) return;
235 struct iovec vec[__SERVER_MAX_DATA+1];
237 vec[0].iov_base = (void *)&req->u.req;
238 vec[0].iov_len = sizeof(req->u.req);
239 for (i = 0; i < req->data_count; i++)
241 vec[i+1].iov_base = (void *)req->data[i].ptr;
242 vec[i+1].iov_len = req->data[i].size;
244 if ((ret = writev( ntdll_get_thread_data()->request_fd, vec, i+1 )) ==
245 req->u.req.request_header.request_size + sizeof(req->u.req)) return;
248 if (ret >= 0) server_protocol_error( "partial write %d\n", ret );
249 if (errno == EPIPE) server_abort_thread(0);
250 server_protocol_perror( "write" );
254 /***********************************************************************
257 * Read data from the reply buffer; helper for wait_reply.
259 static void read_reply_data( void *buffer, size_t size )
265 if ((ret = read( ntdll_get_thread_data()->reply_fd, buffer, size )) > 0)
267 if (!(size -= ret)) return;
268 buffer = (char *)buffer + ret;
272 if (errno == EINTR) continue;
273 if (errno == EPIPE) break;
274 server_protocol_perror("read");
276 /* the server closed the connection; time to die... */
277 server_abort_thread(0);
281 /***********************************************************************
284 * Wait for a reply from the server.
286 inline static void wait_reply( struct __server_request_info *req )
288 read_reply_data( &req->u.reply, sizeof(req->u.reply) );
289 if (req->u.reply.reply_header.reply_size)
290 read_reply_data( req->reply_data, req->u.reply.reply_header.reply_size );
294 /***********************************************************************
295 * wine_server_call (NTDLL.@)
297 * Perform a server call.
300 * req_ptr [I/O] Function dependent data
303 * Depends on server function being called, but usually an NTSTATUS code.
306 * Use the SERVER_START_REQ and SERVER_END_REQ to help you fill out the
307 * server request structure for the particular call. E.g:
308 *| SERVER_START_REQ( event_op )
310 *| req->handle = handle;
311 *| req->op = SET_EVENT;
312 *| ret = wine_server_call( req );
316 unsigned int wine_server_call( void *req_ptr )
318 struct __server_request_info * const req = req_ptr;
321 pthread_functions.sigprocmask( SIG_BLOCK, &server_block_set, &old_set );
324 pthread_functions.sigprocmask( SIG_SETMASK, &old_set, NULL );
325 return req->u.reply.reply_header.error;
329 /***********************************************************************
330 * server_enter_uninterrupted_section
332 void server_enter_uninterrupted_section( RTL_CRITICAL_SECTION *cs, sigset_t *sigset )
334 pthread_functions.sigprocmask( SIG_BLOCK, &server_block_set, sigset );
335 RtlEnterCriticalSection( cs );
339 /***********************************************************************
340 * server_leave_uninterrupted_section
342 void server_leave_uninterrupted_section( RTL_CRITICAL_SECTION *cs, sigset_t *sigset )
344 RtlLeaveCriticalSection( cs );
345 pthread_functions.sigprocmask( SIG_SETMASK, sigset, NULL );
349 /***********************************************************************
350 * wine_server_send_fd (NTDLL.@)
352 * Send a file descriptor to the server.
355 * fd [I] file descriptor to send
360 void wine_server_send_fd( int fd )
362 #ifndef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
366 struct msghdr msghdr;
370 vec.iov_base = (void *)&data;
371 vec.iov_len = sizeof(data);
373 msghdr.msg_name = NULL;
374 msghdr.msg_namelen = 0;
375 msghdr.msg_iov = &vec;
376 msghdr.msg_iovlen = 1;
378 #ifdef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
379 msghdr.msg_accrights = (void *)&fd;
380 msghdr.msg_accrightslen = sizeof(fd);
381 #else /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
382 cmsg.header.len = sizeof(cmsg.header) + sizeof(fd);
383 cmsg.header.level = SOL_SOCKET;
384 cmsg.header.type = SCM_RIGHTS;
386 msghdr.msg_control = &cmsg;
387 msghdr.msg_controllen = sizeof(cmsg.header) + sizeof(fd);
388 msghdr.msg_flags = 0;
389 #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
391 data.tid = GetCurrentThreadId();
396 if ((ret = sendmsg( fd_socket, &msghdr, 0 )) == sizeof(data)) return;
397 if (ret >= 0) server_protocol_error( "partial write %d\n", ret );
398 if (errno == EINTR) continue;
399 if (errno == EPIPE) server_abort_thread(0);
400 server_protocol_perror( "sendmsg" );
405 /***********************************************************************
408 * Receive a file descriptor passed from the server.
410 static int receive_fd( obj_handle_t *handle )
415 #ifdef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
416 struct msghdr msghdr;
419 msghdr.msg_accrights = (void *)&fd;
420 msghdr.msg_accrightslen = sizeof(fd);
421 #else /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
422 struct msghdr msghdr;
425 cmsg.header.len = sizeof(cmsg.header) + sizeof(fd);
426 cmsg.header.level = SOL_SOCKET;
427 cmsg.header.type = SCM_RIGHTS;
429 msghdr.msg_control = &cmsg;
430 msghdr.msg_controllen = sizeof(cmsg.header) + sizeof(fd);
431 msghdr.msg_flags = 0;
432 #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
434 msghdr.msg_name = NULL;
435 msghdr.msg_namelen = 0;
436 msghdr.msg_iov = &vec;
437 msghdr.msg_iovlen = 1;
438 vec.iov_base = (void *)handle;
439 vec.iov_len = sizeof(*handle);
443 if ((ret = recvmsg( fd_socket, &msghdr, 0 )) > 0)
445 #ifndef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
448 if (fd != -1) fcntl( fd, F_SETFD, 1 ); /* set close on exec flag */
452 if (errno == EINTR) continue;
453 if (errno == EPIPE) break;
454 server_protocol_perror("recvmsg");
456 /* the server closed the connection; time to die... */
457 server_abort_thread(0);
461 /***********************************************************************/
462 /* fd cache support */
464 struct fd_cache_entry
467 enum server_fd_type type;
470 #define FD_CACHE_BLOCK_SIZE (65536 / sizeof(struct fd_cache_entry))
471 #define FD_CACHE_ENTRIES 128
473 static struct fd_cache_entry *fd_cache[FD_CACHE_ENTRIES];
474 static struct fd_cache_entry fd_cache_initial_block[FD_CACHE_BLOCK_SIZE];
476 inline static unsigned int handle_to_index( obj_handle_t handle, unsigned int *entry )
478 unsigned long idx = ((unsigned long)handle >> 2) - 1;
479 *entry = idx / FD_CACHE_BLOCK_SIZE;
480 return idx % FD_CACHE_BLOCK_SIZE;
484 /***********************************************************************
487 * Caller must hold fd_cache_section.
489 static int add_fd_to_cache( obj_handle_t handle, int fd, enum server_fd_type type )
491 unsigned int entry, idx = handle_to_index( handle, &entry );
494 if (entry >= FD_CACHE_ENTRIES)
496 FIXME( "too many allocated handles, not caching %p\n", handle );
500 if (!fd_cache[entry]) /* do we need to allocate a new block of entries? */
502 if (!entry) fd_cache[0] = fd_cache_initial_block;
505 void *ptr = wine_anon_mmap( NULL, FD_CACHE_BLOCK_SIZE * sizeof(struct fd_cache_entry),
506 PROT_READ | PROT_WRITE, 0 );
507 if (ptr == MAP_FAILED) return 0;
508 fd_cache[entry] = ptr;
511 /* store fd+1 so that 0 can be used as the unset value */
512 prev_fd = interlocked_xchg( &fd_cache[entry][idx].fd, fd + 1 ) - 1;
513 fd_cache[entry][idx].type = type;
514 if (prev_fd != -1) close( prev_fd );
519 /***********************************************************************
522 * Caller must hold fd_cache_section.
524 static inline int get_cached_fd( obj_handle_t handle, enum server_fd_type *type )
526 unsigned int entry, idx = handle_to_index( handle, &entry );
529 if (entry < FD_CACHE_ENTRIES && fd_cache[entry])
531 fd = fd_cache[entry][idx].fd - 1;
532 if (type) *type = fd_cache[entry][idx].type;
538 /***********************************************************************
539 * server_remove_fd_from_cache
541 int server_remove_fd_from_cache( obj_handle_t handle )
543 unsigned int entry, idx = handle_to_index( handle, &entry );
546 if (entry < FD_CACHE_ENTRIES && fd_cache[entry])
547 fd = interlocked_xchg( &fd_cache[entry][idx].fd, 0 ) - 1;
553 /***********************************************************************
556 * The returned unix_fd should be closed iff needs_close is non-zero.
558 int server_get_unix_fd( obj_handle_t handle, unsigned int access, int *unix_fd,
559 int *needs_close, enum server_fd_type *type, int *flags )
562 obj_handle_t fd_handle;
563 int ret = 0, removable = 0, fd;
568 server_enter_uninterrupted_section( &fd_cache_section, &sigset );
570 fd = get_cached_fd( handle, type );
571 if (fd != -1 && !flags) goto done;
573 SERVER_START_REQ( get_handle_fd )
575 req->handle = handle;
576 req->access = access;
577 req->cached = (fd != -1);
578 if (!(ret = wine_server_call( req )))
580 removable = reply->flags & FD_FLAG_REMOVABLE;
581 if (type) *type = reply->type;
582 if (flags) *flags = reply->flags;
585 if ((fd = receive_fd( &fd_handle )) != -1)
587 assert( fd_handle == handle );
588 *needs_close = removable || !add_fd_to_cache( handle, fd, reply->type );
590 else ret = STATUS_TOO_MANY_OPENED_FILES;
597 server_leave_uninterrupted_section( &fd_cache_section, &sigset );
598 if (!ret) *unix_fd = fd;
603 /***********************************************************************
604 * wine_server_fd_to_handle (NTDLL.@)
606 * Allocate a file handle for a Unix file descriptor.
609 * fd [I] Unix file descriptor.
610 * access [I] Win32 access flags.
611 * attributes [I] Object attributes.
612 * handle [O] Address where Wine file handle will be stored.
617 int wine_server_fd_to_handle( int fd, unsigned int access, unsigned int attributes, obj_handle_t *handle )
622 wine_server_send_fd( fd );
624 SERVER_START_REQ( alloc_file_handle )
626 req->access = access;
627 req->attributes = attributes;
629 if (!(ret = wine_server_call( req ))) *handle = reply->handle;
636 /***********************************************************************
637 * wine_server_handle_to_fd (NTDLL.@)
639 * Retrieve the file descriptor corresponding to a file handle.
642 * handle [I] Wine file handle.
643 * access [I] Win32 file access rights requested.
644 * unix_fd [O] Address where Unix file descriptor will be stored.
645 * flags [O] Address where the Unix flags associated with file will be stored. Optional.
650 int wine_server_handle_to_fd( obj_handle_t handle, unsigned int access, int *unix_fd, int *flags )
652 int needs_close, ret = server_get_unix_fd( handle, access, unix_fd, &needs_close, NULL, flags );
654 if (!ret && !needs_close)
656 if ((*unix_fd = dup(*unix_fd)) == -1) ret = FILE_GetNtStatus();
662 /***********************************************************************
663 * wine_server_release_fd (NTDLL.@)
665 * Release the Unix file descriptor returned by wine_server_handle_to_fd.
668 * handle [I] Wine file handle.
669 * unix_fd [I] Unix file descriptor to release.
674 void wine_server_release_fd( obj_handle_t handle, int unix_fd )
680 /***********************************************************************
683 * Start a new wine server.
685 static void start_server(void)
687 static int started; /* we only try once */
689 static char wineserver[] = "server/wineserver";
690 static char debug[] = "-d";
696 if (pid == -1) fatal_perror( "fork" );
699 argv[0] = wineserver;
700 argv[1] = TRACE_ON(server) ? debug : NULL;
702 wine_exec_wine_binary( argv[0], argv, getenv("WINESERVER") );
703 fatal_error( "could not exec wineserver\n" );
705 waitpid( pid, &status, 0 );
706 status = WIFEXITED(status) ? WEXITSTATUS(status) : 1;
707 if (status == 2) return; /* server lock held by someone else, will retry later */
708 if (status) exit(status); /* server failed */
714 /***********************************************************************
715 * server_connect_error
717 * Try to display a meaningful explanation of why we couldn't connect
720 static void server_connect_error( const char *serverdir )
725 if ((fd = open( LOCKNAME, O_WRONLY )) == -1)
726 fatal_error( "for some mysterious reason, the wine server never started.\n" );
729 fl.l_whence = SEEK_SET;
732 if (fcntl( fd, F_GETLK, &fl ) != -1)
734 if (fl.l_type == F_WRLCK) /* the file is locked */
735 fatal_error( "a wine server seems to be running, but I cannot connect to it.\n"
736 " You probably need to kill that process (it might be pid %d).\n",
738 fatal_error( "for some mysterious reason, the wine server failed to run.\n" );
740 fatal_error( "the file system of '%s' doesn't support locks,\n"
741 " and there is a 'socket' file in that directory that prevents wine from starting.\n"
742 " You should make sure no wine server is running, remove that file and try again.\n",
747 /***********************************************************************
750 * Attempt to connect to an existing server socket.
751 * We need to be in the server directory already.
753 static int server_connect( const char *serverdir )
755 struct sockaddr_un addr;
757 int s, slen, retry, fd_cwd;
759 /* retrieve the current directory */
760 fd_cwd = open( ".", O_RDONLY );
761 if (fd_cwd != -1) fcntl( fd_cwd, F_SETFD, 1 ); /* set close on exec flag */
763 /* chdir to the server directory */
764 if (chdir( serverdir ) == -1)
766 if (errno != ENOENT) fatal_perror( "chdir to %s", serverdir );
768 if (chdir( serverdir ) == -1) fatal_perror( "chdir to %s", serverdir );
771 /* make sure we are at the right place */
772 if (stat( ".", &st ) == -1) fatal_perror( "stat %s", serverdir );
773 if (st.st_uid != getuid()) fatal_error( "'%s' is not owned by you\n", serverdir );
774 if (st.st_mode & 077) fatal_error( "'%s' must not be accessible by other users\n", serverdir );
776 for (retry = 0; retry < 6; retry++)
778 /* if not the first try, wait a bit to leave the previous server time to exit */
781 usleep( 100000 * retry * retry );
783 if (lstat( SOCKETNAME, &st ) == -1) continue; /* still no socket, wait a bit more */
785 else if (lstat( SOCKETNAME, &st ) == -1) /* check for an already existing socket */
787 if (errno != ENOENT) fatal_perror( "lstat %s/%s", serverdir, SOCKETNAME );
789 if (lstat( SOCKETNAME, &st ) == -1) continue; /* still no socket, wait a bit more */
792 /* make sure the socket is sane (ISFIFO needed for Solaris) */
793 if (!S_ISSOCK(st.st_mode) && !S_ISFIFO(st.st_mode))
794 fatal_error( "'%s/%s' is not a socket\n", serverdir, SOCKETNAME );
795 if (st.st_uid != getuid())
796 fatal_error( "'%s/%s' is not owned by you\n", serverdir, SOCKETNAME );
798 /* try to connect to it */
799 addr.sun_family = AF_UNIX;
800 strcpy( addr.sun_path, SOCKETNAME );
801 slen = sizeof(addr) - sizeof(addr.sun_path) + strlen(addr.sun_path) + 1;
802 #ifdef HAVE_STRUCT_SOCKADDR_UN_SUN_LEN
805 if ((s = socket( AF_UNIX, SOCK_STREAM, 0 )) == -1) fatal_perror( "socket" );
806 if (connect( s, (struct sockaddr *)&addr, slen ) != -1)
808 /* switch back to the starting directory */
814 fcntl( s, F_SETFD, 1 ); /* set close on exec flag */
819 server_connect_error( serverdir );
823 /***********************************************************************
826 * Remove a directory and all its contents; helper for create_config_dir.
828 static void rm_rf( const char *path )
830 int err = errno; /* preserve errno */
836 if (!(buffer = malloc( strlen(path) + 256 + 1 ))) goto done;
837 strcpy( buffer, path );
838 p = buffer + strlen(buffer);
841 if ((dir = opendir( path )))
843 while ((de = readdir( dir )))
845 if (!strcmp( de->d_name, "." ) || !strcmp( de->d_name, ".." )) continue;
846 strcpy( p, de->d_name );
847 if (unlink( buffer ) != -1) continue;
848 if (errno == EISDIR ||
849 (errno == EPERM && !lstat( buffer, &st ) && S_ISDIR(st.st_mode)))
851 /* recurse in the sub-directory */
864 /***********************************************************************
867 * Create the wine configuration dir (~/.wine).
869 static void create_config_dir(void)
871 const char *config_dir = wine_get_config_dir();
876 if (!(tmp_dir = malloc( strlen(config_dir) + sizeof("-XXXXXX") )))
877 fatal_error( "out of memory\n" );
878 strcpy( tmp_dir, config_dir );
879 strcat( tmp_dir, "-XXXXXX" );
880 if ((fd = mkstemps( tmp_dir, 0 )) == -1)
881 fatal_perror( "can't get temp file name for %s", config_dir );
884 if (mkdir( tmp_dir, 0777 ) == -1)
885 fatal_perror( "cannot create temp dir %s", tmp_dir );
887 MESSAGE( "wine: creating configuration directory '%s'...\n", config_dir );
892 fatal_perror( "fork" );
897 static char argv0[] = "tools/wineprefixcreate",
900 argv3[] = "--prefix";
908 wine_exec_wine_binary( argv[0], argv, NULL );
910 fatal_perror( "could not exec wineprefixcreate" );
916 while ((wret = waitpid( pid, &status, 0 )) != pid)
918 if (wret == -1 && errno != EINTR) fatal_perror( "wait4" );
920 if (!WIFEXITED(status) || WEXITSTATUS(status))
923 fatal_error( "wineprefixcreate failed while creating '%s'.\n", config_dir );
926 if (rename( tmp_dir, config_dir ) == -1)
929 if (errno != EEXIST && errno != ENOTEMPTY)
930 fatal_perror( "rename '%s' to '%s'", tmp_dir, config_dir );
931 /* else it was probably created by a concurrent wine process */
934 MESSAGE( "wine: '%s' created successfully.\n", config_dir );
939 #include <mach/mach.h>
940 #include <mach/mach_error.h>
941 #include <servers/bootstrap.h>
943 /* send our task port to the server */
944 static void send_server_task_port(void)
946 mach_port_t bootstrap_port, wineserver_port;
950 mach_msg_header_t header;
951 mach_msg_body_t body;
952 mach_msg_port_descriptor_t task_port;
955 if (task_get_bootstrap_port(mach_task_self(), &bootstrap_port) != KERN_SUCCESS) return;
957 kret = bootstrap_look_up(bootstrap_port, (char*)wine_get_server_dir(), &wineserver_port);
958 if (kret != KERN_SUCCESS)
959 fatal_error( "cannot find the server port: 0x%08x\n", kret );
961 mach_port_deallocate(mach_task_self(), bootstrap_port);
963 msg.header.msgh_bits = MACH_MSGH_BITS(MACH_MSG_TYPE_COPY_SEND, 0) | MACH_MSGH_BITS_COMPLEX;
964 msg.header.msgh_size = sizeof(msg);
965 msg.header.msgh_remote_port = wineserver_port;
966 msg.header.msgh_local_port = MACH_PORT_NULL;
968 msg.body.msgh_descriptor_count = 1;
969 msg.task_port.name = mach_task_self();
970 msg.task_port.disposition = MACH_MSG_TYPE_COPY_SEND;
971 msg.task_port.type = MACH_MSG_PORT_DESCRIPTOR;
973 kret = mach_msg_send(&msg.header);
974 if (kret != KERN_SUCCESS)
975 server_protocol_error( "mach_msg_send failed: 0x%08x\n", kret );
977 mach_port_deallocate(mach_task_self(), wineserver_port);
979 #endif /* __APPLE__ */
981 /***********************************************************************
982 * server_init_process
984 * Start the server and create the initial socket pair.
986 void server_init_process(void)
988 obj_handle_t dummy_handle;
989 const char *env_socket = getenv( "WINESERVERSOCKET" );
993 fd_socket = atoi( env_socket );
994 if (fcntl( fd_socket, F_SETFD, 1 ) == -1)
995 fatal_perror( "Bad server socket %d", fd_socket );
996 unsetenv( "WINESERVERSOCKET" );
1000 const char *server_dir = wine_get_server_dir();
1002 if (!server_dir) /* this means the config dir doesn't exist */
1004 create_config_dir();
1005 server_dir = wine_get_server_dir();
1008 /* connect to the server */
1009 fd_socket = server_connect( server_dir );
1012 /* setup the signal mask */
1013 sigemptyset( &server_block_set );
1014 sigaddset( &server_block_set, SIGALRM );
1015 sigaddset( &server_block_set, SIGIO );
1016 sigaddset( &server_block_set, SIGINT );
1017 sigaddset( &server_block_set, SIGHUP );
1018 sigaddset( &server_block_set, SIGUSR1 );
1019 sigaddset( &server_block_set, SIGUSR2 );
1020 sigaddset( &server_block_set, SIGCHLD );
1021 pthread_functions.sigprocmask( SIG_BLOCK, &server_block_set, NULL );
1023 /* receive the first thread request fd on the main socket */
1024 ntdll_get_thread_data()->request_fd = receive_fd( &dummy_handle );
1027 send_server_task_port();
1032 /***********************************************************************
1033 * server_init_process_done
1035 NTSTATUS server_init_process_done(void)
1037 PEB *peb = NtCurrentTeb()->Peb;
1038 IMAGE_NT_HEADERS *nt = RtlImageNtHeader( peb->ImageBaseAddress );
1041 /* Install signal handlers; this cannot be done earlier, since we cannot
1042 * send exceptions to the debugger before the create process event that
1043 * is sent by REQ_INIT_PROCESS_DONE.
1044 * We do need the handlers in place by the time the request is over, so
1045 * we set them up here. If we segfault between here and the server call
1046 * something is very wrong... */
1047 if (!SIGNAL_Init()) exit(1);
1049 /* Signal the parent process to continue */
1050 SERVER_START_REQ( init_process_done )
1052 req->module = peb->ImageBaseAddress;
1053 req->entry = (char *)peb->ImageBaseAddress + nt->OptionalHeader.AddressOfEntryPoint;
1054 req->gui = (nt->OptionalHeader.Subsystem != IMAGE_SUBSYSTEM_WINDOWS_CUI);
1055 status = wine_server_call( req );
1059 pthread_functions.sigprocmask( SIG_UNBLOCK, &server_block_set, NULL );
1064 /***********************************************************************
1065 * server_init_thread
1067 * Send an init thread request. Return 0 if OK.
1069 size_t server_init_thread( int unix_pid, int unix_tid, void *entry_point )
1073 struct sigaction sig_act;
1076 sig_act.sa_handler = SIG_IGN;
1077 sig_act.sa_flags = 0;
1078 sigemptyset( &sig_act.sa_mask );
1080 /* ignore SIGPIPE so that we get an EPIPE error instead */
1081 sigaction( SIGPIPE, &sig_act, NULL );
1082 /* automatic child reaping to avoid zombies */
1084 sig_act.sa_flags |= SA_NOCLDWAIT;
1086 sigaction( SIGCHLD, &sig_act, NULL );
1088 /* create the server->client communication pipes */
1089 if (pipe( reply_pipe ) == -1) server_protocol_perror( "pipe" );
1090 if (pipe( ntdll_get_thread_data()->wait_fd ) == -1) server_protocol_perror( "pipe" );
1091 wine_server_send_fd( reply_pipe[1] );
1092 wine_server_send_fd( ntdll_get_thread_data()->wait_fd[1] );
1093 ntdll_get_thread_data()->reply_fd = reply_pipe[0];
1094 close( reply_pipe[1] );
1096 /* set close on exec flag */
1097 fcntl( ntdll_get_thread_data()->reply_fd, F_SETFD, 1 );
1098 fcntl( ntdll_get_thread_data()->wait_fd[0], F_SETFD, 1 );
1099 fcntl( ntdll_get_thread_data()->wait_fd[1], F_SETFD, 1 );
1101 SERVER_START_REQ( init_thread )
1103 req->unix_pid = unix_pid;
1104 req->unix_tid = unix_tid;
1105 req->teb = NtCurrentTeb();
1106 req->peb = NtCurrentTeb()->Peb;
1107 req->entry = entry_point;
1108 req->ldt_copy = &wine_ldt_copy;
1109 req->reply_fd = reply_pipe[1];
1110 req->wait_fd = ntdll_get_thread_data()->wait_fd[1];
1111 req->debug_level = (TRACE_ON(server) != 0);
1112 ret = wine_server_call( req );
1113 NtCurrentTeb()->ClientId.UniqueProcess = (HANDLE)reply->pid;
1114 NtCurrentTeb()->ClientId.UniqueThread = (HANDLE)reply->tid;
1115 info_size = reply->info_size;
1116 version = reply->version;
1117 server_start_time = reply->server_start;
1121 if (ret) server_protocol_error( "init_thread failed with status %x\n", ret );
1122 if (version != SERVER_PROTOCOL_VERSION)
1123 server_protocol_error( "version mismatch %d/%d.\n"
1124 "Your %s binary was not upgraded correctly,\n"
1125 "or you have an older one somewhere in your PATH.\n"
1126 "Or maybe the wrong wineserver is still running?\n",
1127 version, SERVER_PROTOCOL_VERSION,
1128 (version > SERVER_PROTOCOL_VERSION) ? "wine" : "wineserver" );