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_PRCTL_H
49 # include <sys/prctl.h>
51 #ifdef HAVE_SYS_STAT_H
52 # include <sys/stat.h>
54 #ifdef HAVE_SYS_SYSCALL_H
55 # include <sys/syscall.h>
61 #include <sys/ucontext.h>
69 #define WIN32_NO_STATUS
70 #include "wine/library.h"
71 #include "wine/server.h"
72 #include "wine/debug.h"
73 #include "ntdll_misc.h"
75 WINE_DEFAULT_DEBUG_CHANNEL(server);
77 /* Some versions of glibc don't define this */
82 #ifndef MSG_CMSG_CLOEXEC
83 #define MSG_CMSG_CLOEXEC 0
86 #define SOCKETNAME "socket" /* name of the socket file */
87 #define LOCKNAME "lock" /* name of the lock file */
90 static const enum cpu_type client_cpu = CPU_x86;
91 #elif defined(__x86_64__)
92 static const enum cpu_type client_cpu = CPU_x86_64;
93 #elif defined(__powerpc__)
94 static const enum cpu_type client_cpu = CPU_POWERPC;
95 #elif defined(__sparc__)
96 static const enum cpu_type client_cpu = CPU_SPARC;
97 #elif defined(__arm__)
98 static const enum cpu_type client_cpu = CPU_ARM;
100 #error Unsupported CPU
103 unsigned int server_cpus = 0;
104 int is_wow64 = FALSE;
106 timeout_t server_start_time = 0; /* time of server startup */
108 sigset_t server_block_set; /* signals to block during server calls */
109 static int fd_socket = -1; /* socket to exchange file descriptors with the server */
110 static pid_t server_pid;
112 static RTL_CRITICAL_SECTION fd_cache_section;
113 static RTL_CRITICAL_SECTION_DEBUG critsect_debug =
115 0, 0, &fd_cache_section,
116 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
117 0, 0, { (DWORD_PTR)(__FILE__ ": fd_cache_section") }
119 static RTL_CRITICAL_SECTION fd_cache_section = { &critsect_debug, -1, 0, 0, 0, 0 };
123 static void fatal_error( const char *err, ... ) __attribute__((noreturn, format(printf,1,2)));
124 static void fatal_perror( const char *err, ... ) __attribute__((noreturn, format(printf,1,2)));
125 static void server_connect_error( const char *serverdir ) __attribute__((noreturn));
128 /* die on a fatal error; use only during initialization */
129 static void fatal_error( const char *err, ... )
133 va_start( args, err );
134 fprintf( stderr, "wine: " );
135 vfprintf( stderr, err, args );
140 /* die on a fatal error; use only during initialization */
141 static void fatal_perror( const char *err, ... )
145 va_start( args, err );
146 fprintf( stderr, "wine: " );
147 vfprintf( stderr, err, args );
154 /***********************************************************************
155 * server_protocol_error
157 void server_protocol_error( const char *err, ... )
161 va_start( args, err );
162 fprintf( stderr, "wine client error:%x: ", GetCurrentThreadId() );
163 vfprintf( stderr, err, args );
169 /***********************************************************************
170 * server_protocol_perror
172 void server_protocol_perror( const char *err )
174 fprintf( stderr, "wine client error:%x: ", GetCurrentThreadId() );
180 /***********************************************************************
183 * Send a request to the server.
185 static unsigned int send_request( const struct __server_request_info *req )
190 if (!req->u.req.request_header.request_size)
192 if ((ret = write( ntdll_get_thread_data()->request_fd, &req->u.req,
193 sizeof(req->u.req) )) == sizeof(req->u.req)) return STATUS_SUCCESS;
198 struct iovec vec[__SERVER_MAX_DATA+1];
200 vec[0].iov_base = (void *)&req->u.req;
201 vec[0].iov_len = sizeof(req->u.req);
202 for (i = 0; i < req->data_count; i++)
204 vec[i+1].iov_base = (void *)req->data[i].ptr;
205 vec[i+1].iov_len = req->data[i].size;
207 if ((ret = writev( ntdll_get_thread_data()->request_fd, vec, i+1 )) ==
208 req->u.req.request_header.request_size + sizeof(req->u.req)) return STATUS_SUCCESS;
211 if (ret >= 0) server_protocol_error( "partial write %d\n", ret );
212 if (errno == EPIPE) abort_thread(0);
213 if (errno == EFAULT) return STATUS_ACCESS_VIOLATION;
214 server_protocol_perror( "write" );
218 /***********************************************************************
221 * Read data from the reply buffer; helper for wait_reply.
223 static void read_reply_data( void *buffer, size_t size )
229 if ((ret = read( ntdll_get_thread_data()->reply_fd, buffer, size )) > 0)
231 if (!(size -= ret)) return;
232 buffer = (char *)buffer + ret;
236 if (errno == EINTR) continue;
237 if (errno == EPIPE) break;
238 server_protocol_perror("read");
240 /* the server closed the connection; time to die... */
245 /***********************************************************************
248 * Wait for a reply from the server.
250 static inline unsigned int wait_reply( struct __server_request_info *req )
252 read_reply_data( &req->u.reply, sizeof(req->u.reply) );
253 if (req->u.reply.reply_header.reply_size)
254 read_reply_data( req->reply_data, req->u.reply.reply_header.reply_size );
255 return req->u.reply.reply_header.error;
259 /***********************************************************************
260 * wine_server_call (NTDLL.@)
262 * Perform a server call.
265 * req_ptr [I/O] Function dependent data
268 * Depends on server function being called, but usually an NTSTATUS code.
271 * Use the SERVER_START_REQ and SERVER_END_REQ to help you fill out the
272 * server request structure for the particular call. E.g:
273 *| SERVER_START_REQ( event_op )
275 *| req->handle = handle;
276 *| req->op = SET_EVENT;
277 *| ret = wine_server_call( req );
281 unsigned int wine_server_call( void *req_ptr )
283 struct __server_request_info * const req = req_ptr;
287 pthread_sigmask( SIG_BLOCK, &server_block_set, &old_set );
288 ret = send_request( req );
289 if (!ret) ret = wait_reply( req );
290 pthread_sigmask( SIG_SETMASK, &old_set, NULL );
295 /***********************************************************************
296 * server_enter_uninterrupted_section
298 void server_enter_uninterrupted_section( RTL_CRITICAL_SECTION *cs, sigset_t *sigset )
300 pthread_sigmask( SIG_BLOCK, &server_block_set, sigset );
301 RtlEnterCriticalSection( cs );
305 /***********************************************************************
306 * server_leave_uninterrupted_section
308 void server_leave_uninterrupted_section( RTL_CRITICAL_SECTION *cs, sigset_t *sigset )
310 RtlLeaveCriticalSection( cs );
311 pthread_sigmask( SIG_SETMASK, sigset, NULL );
315 /***********************************************************************
316 * wine_server_send_fd (NTDLL.@)
318 * Send a file descriptor to the server.
321 * fd [I] file descriptor to send
326 void CDECL wine_server_send_fd( int fd )
329 struct msghdr msghdr;
333 #ifdef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
334 msghdr.msg_accrights = (void *)&fd;
335 msghdr.msg_accrightslen = sizeof(fd);
336 #else /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
337 char cmsg_buffer[256];
338 struct cmsghdr *cmsg;
339 msghdr.msg_control = cmsg_buffer;
340 msghdr.msg_controllen = sizeof(cmsg_buffer);
341 msghdr.msg_flags = 0;
342 cmsg = CMSG_FIRSTHDR( &msghdr );
343 cmsg->cmsg_len = CMSG_LEN( sizeof(fd) );
344 cmsg->cmsg_level = SOL_SOCKET;
345 cmsg->cmsg_type = SCM_RIGHTS;
346 *(int *)CMSG_DATA(cmsg) = fd;
347 msghdr.msg_controllen = cmsg->cmsg_len;
348 #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
350 msghdr.msg_name = NULL;
351 msghdr.msg_namelen = 0;
352 msghdr.msg_iov = &vec;
353 msghdr.msg_iovlen = 1;
355 vec.iov_base = (void *)&data;
356 vec.iov_len = sizeof(data);
358 data.tid = GetCurrentThreadId();
363 if ((ret = sendmsg( fd_socket, &msghdr, 0 )) == sizeof(data)) return;
364 if (ret >= 0) server_protocol_error( "partial write %d\n", ret );
365 if (errno == EINTR) continue;
366 if (errno == EPIPE) abort_thread(0);
367 server_protocol_perror( "sendmsg" );
372 /***********************************************************************
375 * Receive a file descriptor passed from the server.
377 static int receive_fd( obj_handle_t *handle )
380 struct msghdr msghdr;
383 #ifdef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
384 msghdr.msg_accrights = (void *)&fd;
385 msghdr.msg_accrightslen = sizeof(fd);
386 #else /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
387 char cmsg_buffer[256];
388 msghdr.msg_control = cmsg_buffer;
389 msghdr.msg_controllen = sizeof(cmsg_buffer);
390 msghdr.msg_flags = 0;
391 #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
393 msghdr.msg_name = NULL;
394 msghdr.msg_namelen = 0;
395 msghdr.msg_iov = &vec;
396 msghdr.msg_iovlen = 1;
397 vec.iov_base = (void *)handle;
398 vec.iov_len = sizeof(*handle);
402 if ((ret = recvmsg( fd_socket, &msghdr, MSG_CMSG_CLOEXEC )) > 0)
404 #ifndef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
405 struct cmsghdr *cmsg;
406 for (cmsg = CMSG_FIRSTHDR( &msghdr ); cmsg; cmsg = CMSG_NXTHDR( &msghdr, cmsg ))
408 if (cmsg->cmsg_level != SOL_SOCKET) continue;
409 if (cmsg->cmsg_type == SCM_RIGHTS) fd = *(int *)CMSG_DATA(cmsg);
410 #ifdef SCM_CREDENTIALS
411 else if (cmsg->cmsg_type == SCM_CREDENTIALS)
413 struct ucred *ucred = (struct ucred *)CMSG_DATA(cmsg);
414 server_pid = ucred->pid;
418 #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
419 if (fd != -1) fcntl( fd, F_SETFD, FD_CLOEXEC ); /* in case MSG_CMSG_CLOEXEC is not supported */
423 if (errno == EINTR) continue;
424 if (errno == EPIPE) break;
425 server_protocol_perror("recvmsg");
427 /* the server closed the connection; time to die... */
432 /***********************************************************************/
433 /* fd cache support */
435 struct fd_cache_entry
438 enum server_fd_type type : 6;
439 unsigned int access : 2;
440 unsigned int options : 24;
443 #define FD_CACHE_BLOCK_SIZE (65536 / sizeof(struct fd_cache_entry))
444 #define FD_CACHE_ENTRIES 128
446 static struct fd_cache_entry *fd_cache[FD_CACHE_ENTRIES];
447 static struct fd_cache_entry fd_cache_initial_block[FD_CACHE_BLOCK_SIZE];
449 static inline unsigned int handle_to_index( HANDLE handle, unsigned int *entry )
451 unsigned int idx = (wine_server_obj_handle(handle) >> 2) - 1;
452 *entry = idx / FD_CACHE_BLOCK_SIZE;
453 return idx % FD_CACHE_BLOCK_SIZE;
457 /***********************************************************************
460 * Caller must hold fd_cache_section.
462 static int add_fd_to_cache( HANDLE handle, int fd, enum server_fd_type type,
463 unsigned int access, unsigned int options )
465 unsigned int entry, idx = handle_to_index( handle, &entry );
468 if (entry >= FD_CACHE_ENTRIES)
470 FIXME( "too many allocated handles, not caching %p\n", handle );
474 if (!fd_cache[entry]) /* do we need to allocate a new block of entries? */
476 if (!entry) fd_cache[0] = fd_cache_initial_block;
479 void *ptr = wine_anon_mmap( NULL, FD_CACHE_BLOCK_SIZE * sizeof(struct fd_cache_entry),
480 PROT_READ | PROT_WRITE, 0 );
481 if (ptr == MAP_FAILED) return 0;
482 fd_cache[entry] = ptr;
485 /* store fd+1 so that 0 can be used as the unset value */
486 prev_fd = interlocked_xchg( &fd_cache[entry][idx].fd, fd + 1 ) - 1;
487 fd_cache[entry][idx].type = type;
488 fd_cache[entry][idx].access = access;
489 fd_cache[entry][idx].options = options;
490 if (prev_fd != -1) close( prev_fd );
495 /***********************************************************************
498 * Caller must hold fd_cache_section.
500 static inline int get_cached_fd( HANDLE handle, enum server_fd_type *type,
501 unsigned int *access, unsigned int *options )
503 unsigned int entry, idx = handle_to_index( handle, &entry );
506 if (entry < FD_CACHE_ENTRIES && fd_cache[entry])
508 fd = fd_cache[entry][idx].fd - 1;
509 if (type) *type = fd_cache[entry][idx].type;
510 if (access) *access = fd_cache[entry][idx].access;
511 if (options) *options = fd_cache[entry][idx].options;
517 /***********************************************************************
518 * server_remove_fd_from_cache
520 int server_remove_fd_from_cache( HANDLE handle )
522 unsigned int entry, idx = handle_to_index( handle, &entry );
525 if (entry < FD_CACHE_ENTRIES && fd_cache[entry])
526 fd = interlocked_xchg( &fd_cache[entry][idx].fd, 0 ) - 1;
532 /***********************************************************************
535 * The returned unix_fd should be closed iff needs_close is non-zero.
537 int server_get_unix_fd( HANDLE handle, unsigned int wanted_access, int *unix_fd,
538 int *needs_close, enum server_fd_type *type, unsigned int *options )
541 obj_handle_t fd_handle;
543 unsigned int access = 0;
547 wanted_access &= FILE_READ_DATA | FILE_WRITE_DATA;
549 server_enter_uninterrupted_section( &fd_cache_section, &sigset );
551 fd = get_cached_fd( handle, type, &access, options );
552 if (fd != -1) goto done;
554 SERVER_START_REQ( get_handle_fd )
556 req->handle = wine_server_obj_handle( handle );
557 if (!(ret = wine_server_call( req )))
559 if (type) *type = reply->type;
560 if (options) *options = reply->options;
561 access = reply->access;
562 if ((fd = receive_fd( &fd_handle )) != -1)
564 assert( wine_server_ptr_handle(fd_handle) == handle );
565 *needs_close = (!reply->cacheable ||
566 !add_fd_to_cache( handle, fd, reply->type,
567 reply->access, reply->options ));
569 else ret = STATUS_TOO_MANY_OPENED_FILES;
575 server_leave_uninterrupted_section( &fd_cache_section, &sigset );
576 if (!ret && ((access & wanted_access) != wanted_access))
578 ret = STATUS_ACCESS_DENIED;
579 if (*needs_close) close( fd );
581 if (!ret) *unix_fd = fd;
586 /***********************************************************************
587 * wine_server_fd_to_handle (NTDLL.@)
589 * Allocate a file handle for a Unix file descriptor.
592 * fd [I] Unix file descriptor.
593 * access [I] Win32 access flags.
594 * attributes [I] Object attributes.
595 * handle [O] Address where Wine file handle will be stored.
600 int CDECL wine_server_fd_to_handle( int fd, unsigned int access, unsigned int attributes, HANDLE *handle )
605 wine_server_send_fd( fd );
607 SERVER_START_REQ( alloc_file_handle )
609 req->access = access;
610 req->attributes = attributes;
612 if (!(ret = wine_server_call( req ))) *handle = wine_server_ptr_handle( reply->handle );
619 /***********************************************************************
620 * wine_server_handle_to_fd (NTDLL.@)
622 * Retrieve the file descriptor corresponding to a file handle.
625 * handle [I] Wine file handle.
626 * access [I] Win32 file access rights requested.
627 * unix_fd [O] Address where Unix file descriptor will be stored.
628 * options [O] Address where the file open options will be stored. Optional.
633 int CDECL wine_server_handle_to_fd( HANDLE handle, unsigned int access, int *unix_fd,
634 unsigned int *options )
636 int needs_close, ret = server_get_unix_fd( handle, access, unix_fd, &needs_close, NULL, options );
638 if (!ret && !needs_close)
640 if ((*unix_fd = dup(*unix_fd)) == -1) ret = FILE_GetNtStatus();
646 /***********************************************************************
647 * wine_server_release_fd (NTDLL.@)
649 * Release the Unix file descriptor returned by wine_server_handle_to_fd.
652 * handle [I] Wine file handle.
653 * unix_fd [I] Unix file descriptor to release.
658 void CDECL wine_server_release_fd( HANDLE handle, int unix_fd )
664 /***********************************************************************
667 * Create a pipe for communicating with the server.
669 int server_pipe( int fd[2] )
673 static int have_pipe2 = 1;
677 if (!(ret = pipe2( fd, O_CLOEXEC ))) return ret;
678 if (errno == ENOSYS || errno == EINVAL) have_pipe2 = 0; /* don't try again */
681 if (!(ret = pipe( fd )))
683 fcntl( fd[0], F_SETFD, FD_CLOEXEC );
684 fcntl( fd[1], F_SETFD, FD_CLOEXEC );
690 /***********************************************************************
693 * Start a new wine server.
695 static void start_server(void)
697 static int started; /* we only try once */
699 static char wineserver[] = "server/wineserver";
700 static char debug[] = "-d";
706 if (pid == -1) fatal_perror( "fork" );
709 argv[0] = wineserver;
710 argv[1] = TRACE_ON(server) ? debug : NULL;
712 wine_exec_wine_binary( argv[0], argv, getenv("WINESERVER") );
713 fatal_error( "could not exec wineserver\n" );
715 waitpid( pid, &status, 0 );
716 status = WIFEXITED(status) ? WEXITSTATUS(status) : 1;
717 if (status == 2) return; /* server lock held by someone else, will retry later */
718 if (status) exit(status); /* server failed */
724 /***********************************************************************
727 * Setup the wine configuration dir.
729 static void setup_config_dir(void)
731 const char *p, *config_dir = wine_get_config_dir();
733 if (chdir( config_dir ) == -1)
735 if (errno != ENOENT) fatal_perror( "chdir to %s\n", config_dir );
737 if ((p = strrchr( config_dir, '/' )) && p != config_dir)
742 if (!(tmp_dir = malloc( p + 1 - config_dir ))) fatal_error( "out of memory\n" );
743 memcpy( tmp_dir, config_dir, p - config_dir );
744 tmp_dir[p - config_dir] = 0;
745 if (!stat( tmp_dir, &st ) && st.st_uid != getuid())
746 fatal_error( "'%s' is not owned by you, refusing to create a configuration directory there\n",
751 mkdir( config_dir, 0777 );
752 if (chdir( config_dir ) == -1) fatal_perror( "chdir to %s\n", config_dir );
754 if ((p = getenv( "WINEARCH" )) && !strcmp( p, "win32" ))
756 /* force creation of a 32-bit prefix */
757 int fd = open( "system.reg", O_WRONLY | O_CREAT | O_EXCL, 0666 );
760 static const char regfile[] = "WINE REGISTRY Version 2\n\n#arch=win32\n";
761 write( fd, regfile, sizeof(regfile) - 1 );
765 MESSAGE( "wine: created the configuration directory '%s'\n", config_dir );
768 if (mkdir( "dosdevices", 0777 ) == -1)
770 if (errno == EEXIST) return;
771 fatal_perror( "cannot create %s/dosdevices\n", config_dir );
774 /* create the drive symlinks */
776 mkdir( "drive_c", 0777 );
777 symlink( "../drive_c", "dosdevices/c:" );
778 symlink( "/", "dosdevices/z:" );
782 /***********************************************************************
783 * server_connect_error
785 * Try to display a meaningful explanation of why we couldn't connect
788 static void server_connect_error( const char *serverdir )
793 if ((fd = open( LOCKNAME, O_WRONLY )) == -1)
794 fatal_error( "for some mysterious reason, the wine server never started.\n" );
797 fl.l_whence = SEEK_SET;
800 if (fcntl( fd, F_GETLK, &fl ) != -1)
802 if (fl.l_type == F_WRLCK) /* the file is locked */
803 fatal_error( "a wine server seems to be running, but I cannot connect to it.\n"
804 " You probably need to kill that process (it might be pid %d).\n",
806 fatal_error( "for some mysterious reason, the wine server failed to run.\n" );
808 fatal_error( "the file system of '%s' doesn't support locks,\n"
809 " and there is a 'socket' file in that directory that prevents wine from starting.\n"
810 " You should make sure no wine server is running, remove that file and try again.\n",
815 /***********************************************************************
818 * Attempt to connect to an existing server socket.
819 * We need to be in the server directory already.
821 static int server_connect(void)
823 const char *serverdir;
824 struct sockaddr_un addr;
826 int s, slen, retry, fd_cwd;
828 /* retrieve the current directory */
829 fd_cwd = open( ".", O_RDONLY );
830 if (fd_cwd != -1) fcntl( fd_cwd, F_SETFD, 1 ); /* set close on exec flag */
833 serverdir = wine_get_server_dir();
835 /* chdir to the server directory */
836 if (chdir( serverdir ) == -1)
838 if (errno != ENOENT) fatal_perror( "chdir to %s", serverdir );
840 if (chdir( serverdir ) == -1) fatal_perror( "chdir to %s", serverdir );
843 /* make sure we are at the right place */
844 if (stat( ".", &st ) == -1) fatal_perror( "stat %s", serverdir );
845 if (st.st_uid != getuid()) fatal_error( "'%s' is not owned by you\n", serverdir );
846 if (st.st_mode & 077) fatal_error( "'%s' must not be accessible by other users\n", serverdir );
848 for (retry = 0; retry < 6; retry++)
850 /* if not the first try, wait a bit to leave the previous server time to exit */
853 usleep( 100000 * retry * retry );
855 if (lstat( SOCKETNAME, &st ) == -1) continue; /* still no socket, wait a bit more */
857 else if (lstat( SOCKETNAME, &st ) == -1) /* check for an already existing socket */
859 if (errno != ENOENT) fatal_perror( "lstat %s/%s", serverdir, SOCKETNAME );
861 if (lstat( SOCKETNAME, &st ) == -1) continue; /* still no socket, wait a bit more */
864 /* make sure the socket is sane (ISFIFO needed for Solaris) */
865 if (!S_ISSOCK(st.st_mode) && !S_ISFIFO(st.st_mode))
866 fatal_error( "'%s/%s' is not a socket\n", serverdir, SOCKETNAME );
867 if (st.st_uid != getuid())
868 fatal_error( "'%s/%s' is not owned by you\n", serverdir, SOCKETNAME );
870 /* try to connect to it */
871 addr.sun_family = AF_UNIX;
872 strcpy( addr.sun_path, SOCKETNAME );
873 slen = sizeof(addr) - sizeof(addr.sun_path) + strlen(addr.sun_path) + 1;
874 #ifdef HAVE_STRUCT_SOCKADDR_UN_SUN_LEN
877 if ((s = socket( AF_UNIX, SOCK_STREAM, 0 )) == -1) fatal_perror( "socket" );
878 if (connect( s, (struct sockaddr *)&addr, slen ) != -1)
880 /* switch back to the starting directory */
886 fcntl( s, F_SETFD, 1 ); /* set close on exec flag */
891 server_connect_error( serverdir );
896 #include <mach/mach.h>
897 #include <mach/mach_error.h>
898 #include <servers/bootstrap.h>
900 /* send our task port to the server */
901 static void send_server_task_port(void)
903 mach_port_t bootstrap_port, wineserver_port;
907 mach_msg_header_t header;
908 mach_msg_body_t body;
909 mach_msg_port_descriptor_t task_port;
912 if (task_get_bootstrap_port(mach_task_self(), &bootstrap_port) != KERN_SUCCESS) return;
914 kret = bootstrap_look_up(bootstrap_port, (char*)wine_get_server_dir(), &wineserver_port);
915 if (kret != KERN_SUCCESS)
916 fatal_error( "cannot find the server port: 0x%08x\n", kret );
918 mach_port_deallocate(mach_task_self(), bootstrap_port);
920 msg.header.msgh_bits = MACH_MSGH_BITS(MACH_MSG_TYPE_COPY_SEND, 0) | MACH_MSGH_BITS_COMPLEX;
921 msg.header.msgh_size = sizeof(msg);
922 msg.header.msgh_remote_port = wineserver_port;
923 msg.header.msgh_local_port = MACH_PORT_NULL;
925 msg.body.msgh_descriptor_count = 1;
926 msg.task_port.name = mach_task_self();
927 msg.task_port.disposition = MACH_MSG_TYPE_COPY_SEND;
928 msg.task_port.type = MACH_MSG_PORT_DESCRIPTOR;
930 kret = mach_msg_send(&msg.header);
931 if (kret != KERN_SUCCESS)
932 server_protocol_error( "mach_msg_send failed: 0x%08x\n", kret );
934 mach_port_deallocate(mach_task_self(), wineserver_port);
936 #endif /* __APPLE__ */
939 /***********************************************************************
942 * Retrieve the Unix tid to use on the server side for the current thread.
944 static int get_unix_tid(void)
948 ret = syscall( SYS_gettid );
950 ret = pthread_self();
951 #elif defined(__APPLE__)
952 ret = mach_thread_self();
953 mach_port_deallocate(mach_task_self(), ret);
954 #elif defined(__FreeBSD__)
963 /***********************************************************************
964 * server_init_process
966 * Start the server and create the initial socket pair.
968 void server_init_process(void)
970 obj_handle_t version;
971 const char *env_socket = getenv( "WINESERVERSOCKET" );
976 fd_socket = atoi( env_socket );
977 if (fcntl( fd_socket, F_SETFD, 1 ) == -1)
978 fatal_perror( "Bad server socket %d", fd_socket );
979 unsetenv( "WINESERVERSOCKET" );
981 else fd_socket = server_connect();
983 /* setup the signal mask */
984 sigemptyset( &server_block_set );
985 sigaddset( &server_block_set, SIGALRM );
986 sigaddset( &server_block_set, SIGIO );
987 sigaddset( &server_block_set, SIGINT );
988 sigaddset( &server_block_set, SIGHUP );
989 sigaddset( &server_block_set, SIGUSR1 );
990 sigaddset( &server_block_set, SIGUSR2 );
991 sigaddset( &server_block_set, SIGCHLD );
992 pthread_sigmask( SIG_BLOCK, &server_block_set, NULL );
994 /* receive the first thread request fd on the main socket */
996 if (server_pid == -1)
999 setsockopt( fd_socket, SOL_SOCKET, SO_PASSCRED, &enable, sizeof(enable) );
1000 ntdll_get_thread_data()->request_fd = receive_fd( &version );
1002 setsockopt( fd_socket, SOL_SOCKET, SO_PASSCRED, &enable, sizeof(enable) );
1006 ntdll_get_thread_data()->request_fd = receive_fd( &version );
1008 if (version != SERVER_PROTOCOL_VERSION)
1009 server_protocol_error( "version mismatch %d/%d.\n"
1010 "Your %s binary was not upgraded correctly,\n"
1011 "or you have an older one somewhere in your PATH.\n"
1012 "Or maybe the wrong wineserver is still running?\n",
1013 version, SERVER_PROTOCOL_VERSION,
1014 (version > SERVER_PROTOCOL_VERSION) ? "wine" : "wineserver" );
1016 send_server_task_port();
1018 #if defined(__linux__) && defined(HAVE_PRCTL)
1019 /* work around Ubuntu's ptrace breakage */
1020 if (server_pid != -1) prctl( 0x59616d61 /* PR_SET_PTRACER */, server_pid );
1025 /***********************************************************************
1026 * server_init_process_done
1028 NTSTATUS server_init_process_done(void)
1030 PEB *peb = NtCurrentTeb()->Peb;
1031 IMAGE_NT_HEADERS *nt = RtlImageNtHeader( peb->ImageBaseAddress );
1034 /* Install signal handlers; this cannot be done earlier, since we cannot
1035 * send exceptions to the debugger before the create process event that
1036 * is sent by REQ_INIT_PROCESS_DONE.
1037 * We do need the handlers in place by the time the request is over, so
1038 * we set them up here. If we segfault between here and the server call
1039 * something is very wrong... */
1040 signal_init_process();
1042 /* Signal the parent process to continue */
1043 SERVER_START_REQ( init_process_done )
1045 req->module = wine_server_client_ptr( peb->ImageBaseAddress );
1047 req->ldt_copy = wine_server_client_ptr( &wine_ldt_copy );
1049 req->entry = wine_server_client_ptr( (char *)peb->ImageBaseAddress + nt->OptionalHeader.AddressOfEntryPoint );
1050 req->gui = (nt->OptionalHeader.Subsystem != IMAGE_SUBSYSTEM_WINDOWS_CUI);
1051 status = wine_server_call( req );
1059 /***********************************************************************
1060 * server_init_thread
1062 * Send an init thread request. Return 0 if OK.
1064 size_t server_init_thread( void *entry_point )
1066 static const int is_win64 = (sizeof(void *) > sizeof(int));
1067 const char *arch = getenv( "WINEARCH" );
1070 struct sigaction sig_act;
1073 sig_act.sa_handler = SIG_IGN;
1074 sig_act.sa_flags = 0;
1075 sigemptyset( &sig_act.sa_mask );
1077 /* ignore SIGPIPE so that we get an EPIPE error instead */
1078 sigaction( SIGPIPE, &sig_act, NULL );
1079 /* automatic child reaping to avoid zombies */
1081 sig_act.sa_flags |= SA_NOCLDWAIT;
1083 sigaction( SIGCHLD, &sig_act, NULL );
1085 /* create the server->client communication pipes */
1086 if (server_pipe( reply_pipe ) == -1) server_protocol_perror( "pipe" );
1087 if (server_pipe( ntdll_get_thread_data()->wait_fd ) == -1) server_protocol_perror( "pipe" );
1088 wine_server_send_fd( reply_pipe[1] );
1089 wine_server_send_fd( ntdll_get_thread_data()->wait_fd[1] );
1090 ntdll_get_thread_data()->reply_fd = reply_pipe[0];
1091 close( reply_pipe[1] );
1093 SERVER_START_REQ( init_thread )
1095 req->unix_pid = getpid();
1096 req->unix_tid = get_unix_tid();
1097 req->teb = wine_server_client_ptr( NtCurrentTeb() );
1098 req->entry = wine_server_client_ptr( entry_point );
1099 req->reply_fd = reply_pipe[1];
1100 req->wait_fd = ntdll_get_thread_data()->wait_fd[1];
1101 req->debug_level = (TRACE_ON(server) != 0);
1102 req->cpu = client_cpu;
1103 ret = wine_server_call( req );
1104 NtCurrentTeb()->ClientId.UniqueProcess = ULongToHandle(reply->pid);
1105 NtCurrentTeb()->ClientId.UniqueThread = ULongToHandle(reply->tid);
1106 info_size = reply->info_size;
1107 server_start_time = reply->server_start;
1108 server_cpus = reply->all_cpus;
1112 is_wow64 = !is_win64 && (server_cpus & (1 << CPU_x86_64)) != 0;
1113 ntdll_get_thread_data()->wow64_redir = is_wow64;
1117 case STATUS_SUCCESS:
1120 if (!strcmp( arch, "win32" ) && (is_win64 || is_wow64))
1121 fatal_error( "WINEARCH set to win32 but '%s' is a 64-bit installation.\n",
1122 wine_get_config_dir() );
1123 if (!strcmp( arch, "win64" ) && !is_win64 && !is_wow64)
1124 fatal_error( "WINEARCH set to win64 but '%s' is a 32-bit installation.\n",
1125 wine_get_config_dir() );
1128 case STATUS_NOT_REGISTRY_FILE:
1129 fatal_error( "'%s' is a 32-bit installation, it cannot support 64-bit applications.\n",
1130 wine_get_config_dir() );
1131 case STATUS_NOT_SUPPORTED:
1133 fatal_error( "wineserver is 32-bit, it cannot support 64-bit applications.\n" );
1135 fatal_error( "'%s' is a 64-bit installation, it cannot be used with a 32-bit wineserver.\n",
1136 wine_get_config_dir() );
1138 server_protocol_error( "init_thread failed with status %x\n", ret );