2 * Wine server communication
4 * Copyright (C) 1998 Alexandre Julliard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22 #include "wine/port.h"
34 #ifdef HAVE_PTHREAD_NP_H
35 # include <pthread_np.h>
41 #include <sys/types.h>
42 #ifdef HAVE_SYS_SOCKET_H
43 # include <sys/socket.h>
45 #ifdef HAVE_SYS_WAIT_H
51 #ifdef HAVE_SYS_MMAN_H
54 #ifdef HAVE_SYS_PRCTL_H
55 # include <sys/prctl.h>
57 #ifdef HAVE_SYS_STAT_H
58 # include <sys/stat.h>
60 #ifdef HAVE_SYS_SYSCALL_H
61 # include <sys/syscall.h>
67 #include <sys/ucontext.h>
75 #define WIN32_NO_STATUS
76 #include "wine/library.h"
77 #include "wine/server.h"
78 #include "wine/debug.h"
79 #include "ntdll_misc.h"
81 WINE_DEFAULT_DEBUG_CHANNEL(server);
83 /* Some versions of glibc don't define this */
88 #ifndef MSG_CMSG_CLOEXEC
89 #define MSG_CMSG_CLOEXEC 0
92 #define SOCKETNAME "socket" /* name of the socket file */
93 #define LOCKNAME "lock" /* name of the lock file */
96 static const enum cpu_type client_cpu = CPU_x86;
97 #elif defined(__x86_64__)
98 static const enum cpu_type client_cpu = CPU_x86_64;
99 #elif defined(__powerpc__)
100 static const enum cpu_type client_cpu = CPU_POWERPC;
101 #elif defined(__sparc__)
102 static const enum cpu_type client_cpu = CPU_SPARC;
103 #elif defined(__arm__)
104 static const enum cpu_type client_cpu = CPU_ARM;
106 #error Unsupported CPU
109 unsigned int server_cpus = 0;
110 int is_wow64 = FALSE;
112 timeout_t server_start_time = 0; /* time of server startup */
114 sigset_t server_block_set; /* signals to block during server calls */
115 static int fd_socket = -1; /* socket to exchange file descriptors with the server */
116 static pid_t server_pid;
118 static RTL_CRITICAL_SECTION fd_cache_section;
119 static RTL_CRITICAL_SECTION_DEBUG critsect_debug =
121 0, 0, &fd_cache_section,
122 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
123 0, 0, { (DWORD_PTR)(__FILE__ ": fd_cache_section") }
125 static RTL_CRITICAL_SECTION fd_cache_section = { &critsect_debug, -1, 0, 0, 0, 0 };
129 static void fatal_error( const char *err, ... ) __attribute__((noreturn, format(printf,1,2)));
130 static void fatal_perror( const char *err, ... ) __attribute__((noreturn, format(printf,1,2)));
131 static void server_connect_error( const char *serverdir ) __attribute__((noreturn));
134 /* die on a fatal error; use only during initialization */
135 static void fatal_error( const char *err, ... )
139 va_start( args, err );
140 fprintf( stderr, "wine: " );
141 vfprintf( stderr, err, args );
146 /* die on a fatal error; use only during initialization */
147 static void fatal_perror( const char *err, ... )
151 va_start( args, err );
152 fprintf( stderr, "wine: " );
153 vfprintf( stderr, err, args );
160 /***********************************************************************
161 * server_protocol_error
163 void server_protocol_error( const char *err, ... )
167 va_start( args, err );
168 fprintf( stderr, "wine client error:%x: ", GetCurrentThreadId() );
169 vfprintf( stderr, err, args );
175 /***********************************************************************
176 * server_protocol_perror
178 void server_protocol_perror( const char *err )
180 fprintf( stderr, "wine client error:%x: ", GetCurrentThreadId() );
186 /***********************************************************************
189 * Send a request to the server.
191 static unsigned int send_request( const struct __server_request_info *req )
196 if (!req->u.req.request_header.request_size)
198 if ((ret = write( ntdll_get_thread_data()->request_fd, &req->u.req,
199 sizeof(req->u.req) )) == sizeof(req->u.req)) return STATUS_SUCCESS;
204 struct iovec vec[__SERVER_MAX_DATA+1];
206 vec[0].iov_base = (void *)&req->u.req;
207 vec[0].iov_len = sizeof(req->u.req);
208 for (i = 0; i < req->data_count; i++)
210 vec[i+1].iov_base = (void *)req->data[i].ptr;
211 vec[i+1].iov_len = req->data[i].size;
213 if ((ret = writev( ntdll_get_thread_data()->request_fd, vec, i+1 )) ==
214 req->u.req.request_header.request_size + sizeof(req->u.req)) return STATUS_SUCCESS;
217 if (ret >= 0) server_protocol_error( "partial write %d\n", ret );
218 if (errno == EPIPE) abort_thread(0);
219 if (errno == EFAULT) return STATUS_ACCESS_VIOLATION;
220 server_protocol_perror( "write" );
224 /***********************************************************************
227 * Read data from the reply buffer; helper for wait_reply.
229 static void read_reply_data( void *buffer, size_t size )
235 if ((ret = read( ntdll_get_thread_data()->reply_fd, buffer, size )) > 0)
237 if (!(size -= ret)) return;
238 buffer = (char *)buffer + ret;
242 if (errno == EINTR) continue;
243 if (errno == EPIPE) break;
244 server_protocol_perror("read");
246 /* the server closed the connection; time to die... */
251 /***********************************************************************
254 * Wait for a reply from the server.
256 static inline unsigned int wait_reply( struct __server_request_info *req )
258 read_reply_data( &req->u.reply, sizeof(req->u.reply) );
259 if (req->u.reply.reply_header.reply_size)
260 read_reply_data( req->reply_data, req->u.reply.reply_header.reply_size );
261 return req->u.reply.reply_header.error;
265 /***********************************************************************
266 * wine_server_call (NTDLL.@)
268 * Perform a server call.
271 * req_ptr [I/O] Function dependent data
274 * Depends on server function being called, but usually an NTSTATUS code.
277 * Use the SERVER_START_REQ and SERVER_END_REQ to help you fill out the
278 * server request structure for the particular call. E.g:
279 *| SERVER_START_REQ( event_op )
281 *| req->handle = handle;
282 *| req->op = SET_EVENT;
283 *| ret = wine_server_call( req );
287 unsigned int wine_server_call( void *req_ptr )
289 struct __server_request_info * const req = req_ptr;
293 pthread_sigmask( SIG_BLOCK, &server_block_set, &old_set );
294 ret = send_request( req );
295 if (!ret) ret = wait_reply( req );
296 pthread_sigmask( SIG_SETMASK, &old_set, NULL );
301 /***********************************************************************
302 * server_enter_uninterrupted_section
304 void server_enter_uninterrupted_section( RTL_CRITICAL_SECTION *cs, sigset_t *sigset )
306 pthread_sigmask( SIG_BLOCK, &server_block_set, sigset );
307 RtlEnterCriticalSection( cs );
311 /***********************************************************************
312 * server_leave_uninterrupted_section
314 void server_leave_uninterrupted_section( RTL_CRITICAL_SECTION *cs, sigset_t *sigset )
316 RtlLeaveCriticalSection( cs );
317 pthread_sigmask( SIG_SETMASK, sigset, NULL );
321 /***********************************************************************
322 * wine_server_send_fd (NTDLL.@)
324 * Send a file descriptor to the server.
327 * fd [I] file descriptor to send
332 void CDECL wine_server_send_fd( int fd )
335 struct msghdr msghdr;
339 #ifdef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
340 msghdr.msg_accrights = (void *)&fd;
341 msghdr.msg_accrightslen = sizeof(fd);
342 #else /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
343 char cmsg_buffer[256];
344 struct cmsghdr *cmsg;
345 msghdr.msg_control = cmsg_buffer;
346 msghdr.msg_controllen = sizeof(cmsg_buffer);
347 msghdr.msg_flags = 0;
348 cmsg = CMSG_FIRSTHDR( &msghdr );
349 cmsg->cmsg_len = CMSG_LEN( sizeof(fd) );
350 cmsg->cmsg_level = SOL_SOCKET;
351 cmsg->cmsg_type = SCM_RIGHTS;
352 *(int *)CMSG_DATA(cmsg) = fd;
353 msghdr.msg_controllen = cmsg->cmsg_len;
354 #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
356 msghdr.msg_name = NULL;
357 msghdr.msg_namelen = 0;
358 msghdr.msg_iov = &vec;
359 msghdr.msg_iovlen = 1;
361 vec.iov_base = (void *)&data;
362 vec.iov_len = sizeof(data);
364 data.tid = GetCurrentThreadId();
369 if ((ret = sendmsg( fd_socket, &msghdr, 0 )) == sizeof(data)) return;
370 if (ret >= 0) server_protocol_error( "partial write %d\n", ret );
371 if (errno == EINTR) continue;
372 if (errno == EPIPE) abort_thread(0);
373 server_protocol_perror( "sendmsg" );
378 /***********************************************************************
381 * Receive a file descriptor passed from the server.
383 static int receive_fd( obj_handle_t *handle )
386 struct msghdr msghdr;
389 #ifdef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
390 msghdr.msg_accrights = (void *)&fd;
391 msghdr.msg_accrightslen = sizeof(fd);
392 #else /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
393 char cmsg_buffer[256];
394 msghdr.msg_control = cmsg_buffer;
395 msghdr.msg_controllen = sizeof(cmsg_buffer);
396 msghdr.msg_flags = 0;
397 #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
399 msghdr.msg_name = NULL;
400 msghdr.msg_namelen = 0;
401 msghdr.msg_iov = &vec;
402 msghdr.msg_iovlen = 1;
403 vec.iov_base = (void *)handle;
404 vec.iov_len = sizeof(*handle);
408 if ((ret = recvmsg( fd_socket, &msghdr, MSG_CMSG_CLOEXEC )) > 0)
410 #ifndef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
411 struct cmsghdr *cmsg;
412 for (cmsg = CMSG_FIRSTHDR( &msghdr ); cmsg; cmsg = CMSG_NXTHDR( &msghdr, cmsg ))
414 if (cmsg->cmsg_level != SOL_SOCKET) continue;
415 if (cmsg->cmsg_type == SCM_RIGHTS) fd = *(int *)CMSG_DATA(cmsg);
416 #ifdef SCM_CREDENTIALS
417 else if (cmsg->cmsg_type == SCM_CREDENTIALS)
419 struct ucred *ucred = (struct ucred *)CMSG_DATA(cmsg);
420 server_pid = ucred->pid;
424 #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
425 if (fd != -1) fcntl( fd, F_SETFD, FD_CLOEXEC ); /* in case MSG_CMSG_CLOEXEC is not supported */
429 if (errno == EINTR) continue;
430 if (errno == EPIPE) break;
431 server_protocol_perror("recvmsg");
433 /* the server closed the connection; time to die... */
438 /***********************************************************************/
439 /* fd cache support */
441 struct fd_cache_entry
444 enum server_fd_type type : 6;
445 unsigned int access : 2;
446 unsigned int options : 24;
449 #define FD_CACHE_BLOCK_SIZE (65536 / sizeof(struct fd_cache_entry))
450 #define FD_CACHE_ENTRIES 128
452 static struct fd_cache_entry *fd_cache[FD_CACHE_ENTRIES];
453 static struct fd_cache_entry fd_cache_initial_block[FD_CACHE_BLOCK_SIZE];
455 static inline unsigned int handle_to_index( HANDLE handle, unsigned int *entry )
457 unsigned int idx = (wine_server_obj_handle(handle) >> 2) - 1;
458 *entry = idx / FD_CACHE_BLOCK_SIZE;
459 return idx % FD_CACHE_BLOCK_SIZE;
463 /***********************************************************************
466 * Caller must hold fd_cache_section.
468 static int add_fd_to_cache( HANDLE handle, int fd, enum server_fd_type type,
469 unsigned int access, unsigned int options )
471 unsigned int entry, idx = handle_to_index( handle, &entry );
474 if (entry >= FD_CACHE_ENTRIES)
476 FIXME( "too many allocated handles, not caching %p\n", handle );
480 if (!fd_cache[entry]) /* do we need to allocate a new block of entries? */
482 if (!entry) fd_cache[0] = fd_cache_initial_block;
485 void *ptr = wine_anon_mmap( NULL, FD_CACHE_BLOCK_SIZE * sizeof(struct fd_cache_entry),
486 PROT_READ | PROT_WRITE, 0 );
487 if (ptr == MAP_FAILED) return 0;
488 fd_cache[entry] = ptr;
491 /* store fd+1 so that 0 can be used as the unset value */
492 prev_fd = interlocked_xchg( &fd_cache[entry][idx].fd, fd + 1 ) - 1;
493 fd_cache[entry][idx].type = type;
494 fd_cache[entry][idx].access = access;
495 fd_cache[entry][idx].options = options;
496 if (prev_fd != -1) close( prev_fd );
501 /***********************************************************************
504 * Caller must hold fd_cache_section.
506 static inline int get_cached_fd( HANDLE handle, enum server_fd_type *type,
507 unsigned int *access, unsigned int *options )
509 unsigned int entry, idx = handle_to_index( handle, &entry );
512 if (entry < FD_CACHE_ENTRIES && fd_cache[entry])
514 fd = fd_cache[entry][idx].fd - 1;
515 if (type) *type = fd_cache[entry][idx].type;
516 if (access) *access = fd_cache[entry][idx].access;
517 if (options) *options = fd_cache[entry][idx].options;
523 /***********************************************************************
524 * server_remove_fd_from_cache
526 int server_remove_fd_from_cache( HANDLE handle )
528 unsigned int entry, idx = handle_to_index( handle, &entry );
531 if (entry < FD_CACHE_ENTRIES && fd_cache[entry])
532 fd = interlocked_xchg( &fd_cache[entry][idx].fd, 0 ) - 1;
538 /***********************************************************************
541 * The returned unix_fd should be closed iff needs_close is non-zero.
543 int server_get_unix_fd( HANDLE handle, unsigned int wanted_access, int *unix_fd,
544 int *needs_close, enum server_fd_type *type, unsigned int *options )
547 obj_handle_t fd_handle;
549 unsigned int access = 0;
553 wanted_access &= FILE_READ_DATA | FILE_WRITE_DATA;
555 server_enter_uninterrupted_section( &fd_cache_section, &sigset );
557 fd = get_cached_fd( handle, type, &access, options );
558 if (fd != -1) goto done;
560 SERVER_START_REQ( get_handle_fd )
562 req->handle = wine_server_obj_handle( handle );
563 if (!(ret = wine_server_call( req )))
565 if (type) *type = reply->type;
566 if (options) *options = reply->options;
567 access = reply->access;
568 if ((fd = receive_fd( &fd_handle )) != -1)
570 assert( wine_server_ptr_handle(fd_handle) == handle );
571 *needs_close = (!reply->cacheable ||
572 !add_fd_to_cache( handle, fd, reply->type,
573 reply->access, reply->options ));
575 else ret = STATUS_TOO_MANY_OPENED_FILES;
581 server_leave_uninterrupted_section( &fd_cache_section, &sigset );
582 if (!ret && ((access & wanted_access) != wanted_access))
584 ret = STATUS_ACCESS_DENIED;
585 if (*needs_close) close( fd );
587 if (!ret) *unix_fd = fd;
592 /***********************************************************************
593 * wine_server_fd_to_handle (NTDLL.@)
595 * Allocate a file handle for a Unix file descriptor.
598 * fd [I] Unix file descriptor.
599 * access [I] Win32 access flags.
600 * attributes [I] Object attributes.
601 * handle [O] Address where Wine file handle will be stored.
606 int CDECL wine_server_fd_to_handle( int fd, unsigned int access, unsigned int attributes, HANDLE *handle )
611 wine_server_send_fd( fd );
613 SERVER_START_REQ( alloc_file_handle )
615 req->access = access;
616 req->attributes = attributes;
618 if (!(ret = wine_server_call( req ))) *handle = wine_server_ptr_handle( reply->handle );
625 /***********************************************************************
626 * wine_server_handle_to_fd (NTDLL.@)
628 * Retrieve the file descriptor corresponding to a file handle.
631 * handle [I] Wine file handle.
632 * access [I] Win32 file access rights requested.
633 * unix_fd [O] Address where Unix file descriptor will be stored.
634 * options [O] Address where the file open options will be stored. Optional.
639 int CDECL wine_server_handle_to_fd( HANDLE handle, unsigned int access, int *unix_fd,
640 unsigned int *options )
642 int needs_close, ret = server_get_unix_fd( handle, access, unix_fd, &needs_close, NULL, options );
644 if (!ret && !needs_close)
646 if ((*unix_fd = dup(*unix_fd)) == -1) ret = FILE_GetNtStatus();
652 /***********************************************************************
653 * wine_server_release_fd (NTDLL.@)
655 * Release the Unix file descriptor returned by wine_server_handle_to_fd.
658 * handle [I] Wine file handle.
659 * unix_fd [I] Unix file descriptor to release.
664 void CDECL wine_server_release_fd( HANDLE handle, int unix_fd )
670 /***********************************************************************
673 * Create a pipe for communicating with the server.
675 int server_pipe( int fd[2] )
679 static int have_pipe2 = 1;
683 if (!(ret = pipe2( fd, O_CLOEXEC ))) return ret;
684 if (errno == ENOSYS || errno == EINVAL) have_pipe2 = 0; /* don't try again */
687 if (!(ret = pipe( fd )))
689 fcntl( fd[0], F_SETFD, FD_CLOEXEC );
690 fcntl( fd[1], F_SETFD, FD_CLOEXEC );
696 /***********************************************************************
699 * Start a new wine server.
701 static void start_server(void)
703 static int started; /* we only try once */
705 static char wineserver[] = "server/wineserver";
706 static char debug[] = "-d";
712 if (pid == -1) fatal_perror( "fork" );
715 argv[0] = wineserver;
716 argv[1] = TRACE_ON(server) ? debug : NULL;
718 wine_exec_wine_binary( argv[0], argv, getenv("WINESERVER") );
719 fatal_error( "could not exec wineserver\n" );
721 waitpid( pid, &status, 0 );
722 status = WIFEXITED(status) ? WEXITSTATUS(status) : 1;
723 if (status == 2) return; /* server lock held by someone else, will retry later */
724 if (status) exit(status); /* server failed */
730 /***********************************************************************
733 * Setup the wine configuration dir.
735 static void setup_config_dir(void)
737 const char *p, *config_dir = wine_get_config_dir();
739 if (chdir( config_dir ) == -1)
741 if (errno != ENOENT) fatal_perror( "chdir to %s\n", config_dir );
743 if ((p = strrchr( config_dir, '/' )) && p != config_dir)
748 if (!(tmp_dir = malloc( p + 1 - config_dir ))) fatal_error( "out of memory\n" );
749 memcpy( tmp_dir, config_dir, p - config_dir );
750 tmp_dir[p - config_dir] = 0;
751 if (!stat( tmp_dir, &st ) && st.st_uid != getuid())
752 fatal_error( "'%s' is not owned by you, refusing to create a configuration directory there\n",
757 mkdir( config_dir, 0777 );
758 if (chdir( config_dir ) == -1) fatal_perror( "chdir to %s\n", config_dir );
760 if ((p = getenv( "WINEARCH" )) && !strcmp( p, "win32" ))
762 /* force creation of a 32-bit prefix */
763 int fd = open( "system.reg", O_WRONLY | O_CREAT | O_EXCL, 0666 );
766 static const char regfile[] = "WINE REGISTRY Version 2\n\n#arch=win32\n";
767 write( fd, regfile, sizeof(regfile) - 1 );
771 MESSAGE( "wine: created the configuration directory '%s'\n", config_dir );
774 if (mkdir( "dosdevices", 0777 ) == -1)
776 if (errno == EEXIST) return;
777 fatal_perror( "cannot create %s/dosdevices\n", config_dir );
780 /* create the drive symlinks */
782 mkdir( "drive_c", 0777 );
783 symlink( "../drive_c", "dosdevices/c:" );
784 symlink( "/", "dosdevices/z:" );
788 /***********************************************************************
789 * server_connect_error
791 * Try to display a meaningful explanation of why we couldn't connect
794 static void server_connect_error( const char *serverdir )
799 if ((fd = open( LOCKNAME, O_WRONLY )) == -1)
800 fatal_error( "for some mysterious reason, the wine server never started.\n" );
803 fl.l_whence = SEEK_SET;
806 if (fcntl( fd, F_GETLK, &fl ) != -1)
808 if (fl.l_type == F_WRLCK) /* the file is locked */
809 fatal_error( "a wine server seems to be running, but I cannot connect to it.\n"
810 " You probably need to kill that process (it might be pid %d).\n",
812 fatal_error( "for some mysterious reason, the wine server failed to run.\n" );
814 fatal_error( "the file system of '%s' doesn't support locks,\n"
815 " and there is a 'socket' file in that directory that prevents wine from starting.\n"
816 " You should make sure no wine server is running, remove that file and try again.\n",
821 /***********************************************************************
824 * Attempt to connect to an existing server socket.
825 * We need to be in the server directory already.
827 static int server_connect(void)
829 const char *serverdir;
830 struct sockaddr_un addr;
832 int s, slen, retry, fd_cwd;
834 /* retrieve the current directory */
835 fd_cwd = open( ".", O_RDONLY );
836 if (fd_cwd != -1) fcntl( fd_cwd, F_SETFD, 1 ); /* set close on exec flag */
839 serverdir = wine_get_server_dir();
841 /* chdir to the server directory */
842 if (chdir( serverdir ) == -1)
844 if (errno != ENOENT) fatal_perror( "chdir to %s", serverdir );
846 if (chdir( serverdir ) == -1) fatal_perror( "chdir to %s", serverdir );
849 /* make sure we are at the right place */
850 if (stat( ".", &st ) == -1) fatal_perror( "stat %s", serverdir );
851 if (st.st_uid != getuid()) fatal_error( "'%s' is not owned by you\n", serverdir );
852 if (st.st_mode & 077) fatal_error( "'%s' must not be accessible by other users\n", serverdir );
854 for (retry = 0; retry < 6; retry++)
856 /* if not the first try, wait a bit to leave the previous server time to exit */
859 usleep( 100000 * retry * retry );
861 if (lstat( SOCKETNAME, &st ) == -1) continue; /* still no socket, wait a bit more */
863 else if (lstat( SOCKETNAME, &st ) == -1) /* check for an already existing socket */
865 if (errno != ENOENT) fatal_perror( "lstat %s/%s", serverdir, SOCKETNAME );
867 if (lstat( SOCKETNAME, &st ) == -1) continue; /* still no socket, wait a bit more */
870 /* make sure the socket is sane (ISFIFO needed for Solaris) */
871 if (!S_ISSOCK(st.st_mode) && !S_ISFIFO(st.st_mode))
872 fatal_error( "'%s/%s' is not a socket\n", serverdir, SOCKETNAME );
873 if (st.st_uid != getuid())
874 fatal_error( "'%s/%s' is not owned by you\n", serverdir, SOCKETNAME );
876 /* try to connect to it */
877 addr.sun_family = AF_UNIX;
878 strcpy( addr.sun_path, SOCKETNAME );
879 slen = sizeof(addr) - sizeof(addr.sun_path) + strlen(addr.sun_path) + 1;
880 #ifdef HAVE_STRUCT_SOCKADDR_UN_SUN_LEN
883 if ((s = socket( AF_UNIX, SOCK_STREAM, 0 )) == -1) fatal_perror( "socket" );
888 setsockopt( s, SOL_SOCKET, SO_PASSCRED, &enable, sizeof(enable) );
891 if (connect( s, (struct sockaddr *)&addr, slen ) != -1)
893 /* switch back to the starting directory */
899 fcntl( s, F_SETFD, 1 ); /* set close on exec flag */
904 server_connect_error( serverdir );
909 #include <mach/mach.h>
910 #include <mach/mach_error.h>
911 #include <servers/bootstrap.h>
913 /* send our task port to the server */
914 static void send_server_task_port(void)
916 mach_port_t bootstrap_port, wineserver_port;
920 mach_msg_header_t header;
921 mach_msg_body_t body;
922 mach_msg_port_descriptor_t task_port;
925 if (task_get_bootstrap_port(mach_task_self(), &bootstrap_port) != KERN_SUCCESS) return;
927 kret = bootstrap_look_up(bootstrap_port, (char*)wine_get_server_dir(), &wineserver_port);
928 if (kret != KERN_SUCCESS)
929 fatal_error( "cannot find the server port: 0x%08x\n", kret );
931 mach_port_deallocate(mach_task_self(), bootstrap_port);
933 msg.header.msgh_bits = MACH_MSGH_BITS(MACH_MSG_TYPE_COPY_SEND, 0) | MACH_MSGH_BITS_COMPLEX;
934 msg.header.msgh_size = sizeof(msg);
935 msg.header.msgh_remote_port = wineserver_port;
936 msg.header.msgh_local_port = MACH_PORT_NULL;
938 msg.body.msgh_descriptor_count = 1;
939 msg.task_port.name = mach_task_self();
940 msg.task_port.disposition = MACH_MSG_TYPE_COPY_SEND;
941 msg.task_port.type = MACH_MSG_PORT_DESCRIPTOR;
943 kret = mach_msg_send(&msg.header);
944 if (kret != KERN_SUCCESS)
945 server_protocol_error( "mach_msg_send failed: 0x%08x\n", kret );
947 mach_port_deallocate(mach_task_self(), wineserver_port);
949 #endif /* __APPLE__ */
952 /***********************************************************************
955 * Retrieve the Unix tid to use on the server side for the current thread.
957 static int get_unix_tid(void)
960 #ifdef HAVE_PTHREAD_GETTHREADID_NP
961 ret = pthread_getthreadid_np();
963 ret = syscall( SYS_gettid );
965 ret = pthread_self();
966 #elif defined(__APPLE__)
967 ret = mach_thread_self();
968 mach_port_deallocate(mach_task_self(), ret);
969 #elif defined(__NetBSD__)
971 #elif defined(__FreeBSD__)
975 #elif defined(__DragonFly__)
982 /***********************************************************************
983 * server_init_process
985 * Start the server and create the initial socket pair.
987 void server_init_process(void)
989 obj_handle_t version;
990 const char *env_socket = getenv( "WINESERVERSOCKET" );
995 fd_socket = atoi( env_socket );
996 if (fcntl( fd_socket, F_SETFD, 1 ) == -1)
997 fatal_perror( "Bad server socket %d", fd_socket );
998 unsetenv( "WINESERVERSOCKET" );
1000 else fd_socket = server_connect();
1002 /* setup the signal mask */
1003 sigemptyset( &server_block_set );
1004 sigaddset( &server_block_set, SIGALRM );
1005 sigaddset( &server_block_set, SIGIO );
1006 sigaddset( &server_block_set, SIGINT );
1007 sigaddset( &server_block_set, SIGHUP );
1008 sigaddset( &server_block_set, SIGUSR1 );
1009 sigaddset( &server_block_set, SIGUSR2 );
1010 sigaddset( &server_block_set, SIGCHLD );
1011 pthread_sigmask( SIG_BLOCK, &server_block_set, NULL );
1013 /* receive the first thread request fd on the main socket */
1014 ntdll_get_thread_data()->request_fd = receive_fd( &version );
1017 /* now that we hopefully received the server_pid, disable SO_PASSCRED */
1020 setsockopt( fd_socket, SOL_SOCKET, SO_PASSCRED, &enable, sizeof(enable) );
1024 if (version != SERVER_PROTOCOL_VERSION)
1025 server_protocol_error( "version mismatch %d/%d.\n"
1026 "Your %s binary was not upgraded correctly,\n"
1027 "or you have an older one somewhere in your PATH.\n"
1028 "Or maybe the wrong wineserver is still running?\n",
1029 version, SERVER_PROTOCOL_VERSION,
1030 (version > SERVER_PROTOCOL_VERSION) ? "wine" : "wineserver" );
1032 send_server_task_port();
1034 #if defined(__linux__) && defined(HAVE_PRCTL)
1035 /* work around Ubuntu's ptrace breakage */
1036 if (server_pid != -1) prctl( 0x59616d61 /* PR_SET_PTRACER */, server_pid );
1041 /***********************************************************************
1042 * server_init_process_done
1044 NTSTATUS server_init_process_done(void)
1046 PEB *peb = NtCurrentTeb()->Peb;
1047 IMAGE_NT_HEADERS *nt = RtlImageNtHeader( peb->ImageBaseAddress );
1050 /* Install signal handlers; this cannot be done earlier, since we cannot
1051 * send exceptions to the debugger before the create process event that
1052 * is sent by REQ_INIT_PROCESS_DONE.
1053 * We do need the handlers in place by the time the request is over, so
1054 * we set them up here. If we segfault between here and the server call
1055 * something is very wrong... */
1056 signal_init_process();
1058 /* Signal the parent process to continue */
1059 SERVER_START_REQ( init_process_done )
1061 req->module = wine_server_client_ptr( peb->ImageBaseAddress );
1063 req->ldt_copy = wine_server_client_ptr( &wine_ldt_copy );
1065 req->entry = wine_server_client_ptr( (char *)peb->ImageBaseAddress + nt->OptionalHeader.AddressOfEntryPoint );
1066 req->gui = (nt->OptionalHeader.Subsystem != IMAGE_SUBSYSTEM_WINDOWS_CUI);
1067 status = wine_server_call( req );
1075 /***********************************************************************
1076 * server_init_thread
1078 * Send an init thread request. Return 0 if OK.
1080 size_t server_init_thread( void *entry_point )
1082 static const int is_win64 = (sizeof(void *) > sizeof(int));
1083 const char *arch = getenv( "WINEARCH" );
1086 struct sigaction sig_act;
1089 sig_act.sa_handler = SIG_IGN;
1090 sig_act.sa_flags = 0;
1091 sigemptyset( &sig_act.sa_mask );
1093 /* ignore SIGPIPE so that we get an EPIPE error instead */
1094 sigaction( SIGPIPE, &sig_act, NULL );
1096 /* create the server->client communication pipes */
1097 if (server_pipe( reply_pipe ) == -1) server_protocol_perror( "pipe" );
1098 if (server_pipe( ntdll_get_thread_data()->wait_fd ) == -1) server_protocol_perror( "pipe" );
1099 wine_server_send_fd( reply_pipe[1] );
1100 wine_server_send_fd( ntdll_get_thread_data()->wait_fd[1] );
1101 ntdll_get_thread_data()->reply_fd = reply_pipe[0];
1102 close( reply_pipe[1] );
1104 SERVER_START_REQ( init_thread )
1106 req->unix_pid = getpid();
1107 req->unix_tid = get_unix_tid();
1108 req->teb = wine_server_client_ptr( NtCurrentTeb() );
1109 req->entry = wine_server_client_ptr( entry_point );
1110 req->reply_fd = reply_pipe[1];
1111 req->wait_fd = ntdll_get_thread_data()->wait_fd[1];
1112 req->debug_level = (TRACE_ON(server) != 0);
1113 req->cpu = client_cpu;
1114 ret = wine_server_call( req );
1115 NtCurrentTeb()->ClientId.UniqueProcess = ULongToHandle(reply->pid);
1116 NtCurrentTeb()->ClientId.UniqueThread = ULongToHandle(reply->tid);
1117 info_size = reply->info_size;
1118 server_start_time = reply->server_start;
1119 server_cpus = reply->all_cpus;
1123 is_wow64 = !is_win64 && (server_cpus & (1 << CPU_x86_64)) != 0;
1124 ntdll_get_thread_data()->wow64_redir = is_wow64;
1128 case STATUS_SUCCESS:
1131 if (!strcmp( arch, "win32" ) && (is_win64 || is_wow64))
1132 fatal_error( "WINEARCH set to win32 but '%s' is a 64-bit installation.\n",
1133 wine_get_config_dir() );
1134 if (!strcmp( arch, "win64" ) && !is_win64 && !is_wow64)
1135 fatal_error( "WINEARCH set to win64 but '%s' is a 32-bit installation.\n",
1136 wine_get_config_dir() );
1139 case STATUS_NOT_REGISTRY_FILE:
1140 fatal_error( "'%s' is a 32-bit installation, it cannot support 64-bit applications.\n",
1141 wine_get_config_dir() );
1142 case STATUS_NOT_SUPPORTED:
1144 fatal_error( "wineserver is 32-bit, it cannot support 64-bit applications.\n" );
1146 fatal_error( "'%s' is a 64-bit installation, it cannot be used with a 32-bit wineserver.\n",
1147 wine_get_config_dir() );
1149 server_protocol_error( "init_thread failed with status %x\n", ret );