/* * Wine server communication * * Copyright (C) 1998 Alexandre Julliard * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */ #include "config.h" #include "wine/port.h" #include #include #include #include #include #include #include #include #include #include #ifdef HAVE_SYS_SOCKET_H # include #endif #ifdef HAVE_SYS_WAIT_H #include #endif #ifdef HAVE_SYS_UN_H #include #endif #ifdef HAVE_SYS_MMAN_H #include #endif #ifdef HAVE_SYS_STAT_H # include #endif #ifdef HAVE_SYS_UIO_H #include #endif #ifdef HAVE_UNISTD_H # include #endif #include "ntstatus.h" #define WIN32_NO_STATUS #include "wine/library.h" #include "wine/pthread.h" #include "wine/server.h" #include "wine/debug.h" #include "ntdll_misc.h" WINE_DEFAULT_DEBUG_CHANNEL(server); /* Some versions of glibc don't define this */ #ifndef SCM_RIGHTS #define SCM_RIGHTS 1 #endif #define SOCKETNAME "socket" /* name of the socket file */ #define LOCKNAME "lock" /* name of the lock file */ #ifndef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS /* data structure used to pass an fd with sendmsg/recvmsg */ struct cmsg_fd { struct { size_t len; /* size of structure */ int level; /* SOL_SOCKET */ int type; /* SCM_RIGHTS */ } header; int fd; /* fd to pass */ }; #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */ abs_time_t server_start_time = { 0, 0 }; /* time of server startup */ extern struct wine_pthread_functions pthread_functions; sigset_t server_block_set; /* signals to block during server calls */ static int fd_socket = -1; /* socket to exchange file descriptors with the server */ static RTL_CRITICAL_SECTION fd_cache_section; static RTL_CRITICAL_SECTION_DEBUG critsect_debug = { 0, 0, &fd_cache_section, { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList }, 0, 0, { (DWORD_PTR)(__FILE__ ": fd_cache_section") } }; static RTL_CRITICAL_SECTION fd_cache_section = { &critsect_debug, -1, 0, 0, 0, 0 }; #ifdef __GNUC__ static void fatal_error( const char *err, ... ) __attribute__((noreturn, format(printf,1,2))); static void fatal_perror( const char *err, ... ) __attribute__((noreturn, format(printf,1,2))); static void server_connect_error( const char *serverdir ) __attribute__((noreturn)); #endif /* die on a fatal error; use only during initialization */ static void fatal_error( const char *err, ... ) { va_list args; va_start( args, err ); fprintf( stderr, "wine: " ); vfprintf( stderr, err, args ); va_end( args ); exit(1); } /* die on a fatal error; use only during initialization */ static void fatal_perror( const char *err, ... ) { va_list args; va_start( args, err ); fprintf( stderr, "wine: " ); vfprintf( stderr, err, args ); perror( " " ); va_end( args ); exit(1); } /*********************************************************************** * server_exit_thread */ void server_exit_thread( int status ) { struct wine_pthread_thread_info info; SIZE_T size; int fds[4]; RtlAcquirePebLock(); RemoveEntryList( &NtCurrentTeb()->TlsLinks ); RtlReleasePebLock(); info.stack_base = NtCurrentTeb()->DeallocationStack; info.teb_base = NtCurrentTeb(); info.teb_sel = wine_get_fs(); info.exit_status = status; fds[0] = ntdll_get_thread_data()->wait_fd[0]; fds[1] = ntdll_get_thread_data()->wait_fd[1]; fds[2] = ntdll_get_thread_data()->reply_fd; fds[3] = ntdll_get_thread_data()->request_fd; pthread_functions.sigprocmask( SIG_BLOCK, &server_block_set, NULL ); size = 0; NtFreeVirtualMemory( GetCurrentProcess(), &info.stack_base, &size, MEM_RELEASE | MEM_SYSTEM ); info.stack_size = size; size = 0; NtFreeVirtualMemory( GetCurrentProcess(), &info.teb_base, &size, MEM_RELEASE | MEM_SYSTEM ); info.teb_size = size; close( fds[0] ); close( fds[1] ); close( fds[2] ); close( fds[3] ); pthread_functions.exit_thread( &info ); } /*********************************************************************** * server_abort_thread */ void server_abort_thread( int status ) { pthread_functions.sigprocmask( SIG_BLOCK, &server_block_set, NULL ); close( ntdll_get_thread_data()->wait_fd[0] ); close( ntdll_get_thread_data()->wait_fd[1] ); close( ntdll_get_thread_data()->reply_fd ); close( ntdll_get_thread_data()->request_fd ); pthread_functions.abort_thread( status ); } /*********************************************************************** * server_protocol_error */ void server_protocol_error( const char *err, ... ) { va_list args; va_start( args, err ); fprintf( stderr, "wine client error:%x: ", GetCurrentThreadId() ); vfprintf( stderr, err, args ); va_end( args ); server_abort_thread(1); } /*********************************************************************** * server_protocol_perror */ void server_protocol_perror( const char *err ) { fprintf( stderr, "wine client error:%x: ", GetCurrentThreadId() ); perror( err ); server_abort_thread(1); } /*********************************************************************** * send_request * * Send a request to the server. */ static void send_request( const struct __server_request_info *req ) { unsigned int i; int ret; if (!req->u.req.request_header.request_size) { if ((ret = write( ntdll_get_thread_data()->request_fd, &req->u.req, sizeof(req->u.req) )) == sizeof(req->u.req)) return; } else { struct iovec vec[__SERVER_MAX_DATA+1]; vec[0].iov_base = (void *)&req->u.req; vec[0].iov_len = sizeof(req->u.req); for (i = 0; i < req->data_count; i++) { vec[i+1].iov_base = (void *)req->data[i].ptr; vec[i+1].iov_len = req->data[i].size; } if ((ret = writev( ntdll_get_thread_data()->request_fd, vec, i+1 )) == req->u.req.request_header.request_size + sizeof(req->u.req)) return; } if (ret >= 0) server_protocol_error( "partial write %d\n", ret ); if (errno == EPIPE) server_abort_thread(0); server_protocol_perror( "write" ); } /*********************************************************************** * read_reply_data * * Read data from the reply buffer; helper for wait_reply. */ static void read_reply_data( void *buffer, size_t size ) { int ret; for (;;) { if ((ret = read( ntdll_get_thread_data()->reply_fd, buffer, size )) > 0) { if (!(size -= ret)) return; buffer = (char *)buffer + ret; continue; } if (!ret) break; if (errno == EINTR) continue; if (errno == EPIPE) break; server_protocol_perror("read"); } /* the server closed the connection; time to die... */ server_abort_thread(0); } /*********************************************************************** * wait_reply * * Wait for a reply from the server. */ static inline void wait_reply( struct __server_request_info *req ) { read_reply_data( &req->u.reply, sizeof(req->u.reply) ); if (req->u.reply.reply_header.reply_size) read_reply_data( req->reply_data, req->u.reply.reply_header.reply_size ); } /*********************************************************************** * wine_server_call (NTDLL.@) * * Perform a server call. * * PARAMS * req_ptr [I/O] Function dependent data * * RETURNS * Depends on server function being called, but usually an NTSTATUS code. * * NOTES * Use the SERVER_START_REQ and SERVER_END_REQ to help you fill out the * server request structure for the particular call. E.g: *| SERVER_START_REQ( event_op ) *| { *| req->handle = handle; *| req->op = SET_EVENT; *| ret = wine_server_call( req ); *| } *| SERVER_END_REQ; */ unsigned int wine_server_call( void *req_ptr ) { struct __server_request_info * const req = req_ptr; sigset_t old_set; pthread_functions.sigprocmask( SIG_BLOCK, &server_block_set, &old_set ); send_request( req ); wait_reply( req ); pthread_functions.sigprocmask( SIG_SETMASK, &old_set, NULL ); return req->u.reply.reply_header.error; } /*********************************************************************** * server_enter_uninterrupted_section */ void server_enter_uninterrupted_section( RTL_CRITICAL_SECTION *cs, sigset_t *sigset ) { pthread_functions.sigprocmask( SIG_BLOCK, &server_block_set, sigset ); RtlEnterCriticalSection( cs ); } /*********************************************************************** * server_leave_uninterrupted_section */ void server_leave_uninterrupted_section( RTL_CRITICAL_SECTION *cs, sigset_t *sigset ) { RtlLeaveCriticalSection( cs ); pthread_functions.sigprocmask( SIG_SETMASK, sigset, NULL ); } /*********************************************************************** * wine_server_send_fd (NTDLL.@) * * Send a file descriptor to the server. * * PARAMS * fd [I] file descriptor to send * * RETURNS * nothing */ void wine_server_send_fd( int fd ) { #ifndef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS struct cmsg_fd cmsg; #endif struct send_fd data; struct msghdr msghdr; struct iovec vec; int ret; vec.iov_base = (void *)&data; vec.iov_len = sizeof(data); msghdr.msg_name = NULL; msghdr.msg_namelen = 0; msghdr.msg_iov = &vec; msghdr.msg_iovlen = 1; #ifdef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS msghdr.msg_accrights = (void *)&fd; msghdr.msg_accrightslen = sizeof(fd); #else /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */ cmsg.header.len = sizeof(cmsg.header) + sizeof(fd); cmsg.header.level = SOL_SOCKET; cmsg.header.type = SCM_RIGHTS; cmsg.fd = fd; msghdr.msg_control = &cmsg; msghdr.msg_controllen = sizeof(cmsg.header) + sizeof(fd); msghdr.msg_flags = 0; #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */ data.tid = GetCurrentThreadId(); data.fd = fd; for (;;) { if ((ret = sendmsg( fd_socket, &msghdr, 0 )) == sizeof(data)) return; if (ret >= 0) server_protocol_error( "partial write %d\n", ret ); if (errno == EINTR) continue; if (errno == EPIPE) server_abort_thread(0); server_protocol_perror( "sendmsg" ); } } /*********************************************************************** * receive_fd * * Receive a file descriptor passed from the server. */ static int receive_fd( obj_handle_t *handle ) { struct iovec vec; int ret, fd; #ifdef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS struct msghdr msghdr; fd = -1; msghdr.msg_accrights = (void *)&fd; msghdr.msg_accrightslen = sizeof(fd); #else /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */ struct msghdr msghdr; struct cmsg_fd cmsg; cmsg.header.len = sizeof(cmsg.header) + sizeof(fd); cmsg.header.level = SOL_SOCKET; cmsg.header.type = SCM_RIGHTS; cmsg.fd = -1; msghdr.msg_control = &cmsg; msghdr.msg_controllen = sizeof(cmsg.header) + sizeof(fd); msghdr.msg_flags = 0; #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */ msghdr.msg_name = NULL; msghdr.msg_namelen = 0; msghdr.msg_iov = &vec; msghdr.msg_iovlen = 1; vec.iov_base = (void *)handle; vec.iov_len = sizeof(*handle); for (;;) { if ((ret = recvmsg( fd_socket, &msghdr, 0 )) > 0) { #ifndef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS fd = cmsg.fd; #endif if (fd != -1) fcntl( fd, F_SETFD, 1 ); /* set close on exec flag */ return fd; } if (!ret) break; if (errno == EINTR) continue; if (errno == EPIPE) break; server_protocol_perror("recvmsg"); } /* the server closed the connection; time to die... */ server_abort_thread(0); } /***********************************************************************/ /* fd cache support */ struct fd_cache_entry { int fd; enum server_fd_type type : 6; unsigned int access : 2; unsigned int options : 24; }; #define FD_CACHE_BLOCK_SIZE (65536 / sizeof(struct fd_cache_entry)) #define FD_CACHE_ENTRIES 128 static struct fd_cache_entry *fd_cache[FD_CACHE_ENTRIES]; static struct fd_cache_entry fd_cache_initial_block[FD_CACHE_BLOCK_SIZE]; static inline unsigned int handle_to_index( obj_handle_t handle, unsigned int *entry ) { unsigned long idx = ((unsigned long)handle >> 2) - 1; *entry = idx / FD_CACHE_BLOCK_SIZE; return idx % FD_CACHE_BLOCK_SIZE; } /*********************************************************************** * add_fd_to_cache * * Caller must hold fd_cache_section. */ static int add_fd_to_cache( obj_handle_t handle, int fd, enum server_fd_type type, unsigned int access, unsigned int options ) { unsigned int entry, idx = handle_to_index( handle, &entry ); int prev_fd; if (entry >= FD_CACHE_ENTRIES) { FIXME( "too many allocated handles, not caching %p\n", handle ); return 0; } if (!fd_cache[entry]) /* do we need to allocate a new block of entries? */ { if (!entry) fd_cache[0] = fd_cache_initial_block; else { void *ptr = wine_anon_mmap( NULL, FD_CACHE_BLOCK_SIZE * sizeof(struct fd_cache_entry), PROT_READ | PROT_WRITE, 0 ); if (ptr == MAP_FAILED) return 0; fd_cache[entry] = ptr; } } /* store fd+1 so that 0 can be used as the unset value */ prev_fd = interlocked_xchg( &fd_cache[entry][idx].fd, fd + 1 ) - 1; fd_cache[entry][idx].type = type; fd_cache[entry][idx].access = access; fd_cache[entry][idx].options = options; if (prev_fd != -1) close( prev_fd ); return 1; } /*********************************************************************** * get_cached_fd * * Caller must hold fd_cache_section. */ static inline int get_cached_fd( obj_handle_t handle, enum server_fd_type *type, unsigned int *access, unsigned int *options ) { unsigned int entry, idx = handle_to_index( handle, &entry ); int fd = -1; if (entry < FD_CACHE_ENTRIES && fd_cache[entry]) { fd = fd_cache[entry][idx].fd - 1; if (type) *type = fd_cache[entry][idx].type; if (access) *access = fd_cache[entry][idx].access; if (options) *options = fd_cache[entry][idx].options; } return fd; } /*********************************************************************** * server_remove_fd_from_cache */ int server_remove_fd_from_cache( obj_handle_t handle ) { unsigned int entry, idx = handle_to_index( handle, &entry ); int fd = -1; if (entry < FD_CACHE_ENTRIES && fd_cache[entry]) fd = interlocked_xchg( &fd_cache[entry][idx].fd, 0 ) - 1; return fd; } /*********************************************************************** * server_get_unix_fd * * The returned unix_fd should be closed iff needs_close is non-zero. */ int server_get_unix_fd( obj_handle_t handle, unsigned int wanted_access, int *unix_fd, int *needs_close, enum server_fd_type *type, unsigned int *options ) { sigset_t sigset; obj_handle_t fd_handle; int ret = 0, fd; unsigned int access; *unix_fd = -1; *needs_close = 0; wanted_access &= FILE_READ_DATA | FILE_WRITE_DATA; server_enter_uninterrupted_section( &fd_cache_section, &sigset ); fd = get_cached_fd( handle, type, &access, options ); if (fd != -1) goto done; SERVER_START_REQ( get_handle_fd ) { req->handle = handle; if (!(ret = wine_server_call( req ))) { if (type) *type = reply->type; if (options) *options = reply->options; access = reply->access; if ((fd = receive_fd( &fd_handle )) != -1) { assert( fd_handle == handle ); *needs_close = (reply->removable || !add_fd_to_cache( handle, fd, reply->type, reply->access, reply->options )); } else ret = STATUS_TOO_MANY_OPENED_FILES; } } SERVER_END_REQ; done: server_leave_uninterrupted_section( &fd_cache_section, &sigset ); if (!ret && ((access & wanted_access) != wanted_access)) { ret = STATUS_ACCESS_DENIED; if (*needs_close) close( fd ); } if (!ret) *unix_fd = fd; return ret; } /*********************************************************************** * wine_server_fd_to_handle (NTDLL.@) * * Allocate a file handle for a Unix file descriptor. * * PARAMS * fd [I] Unix file descriptor. * access [I] Win32 access flags. * attributes [I] Object attributes. * handle [O] Address where Wine file handle will be stored. * * RETURNS * NTSTATUS code */ int wine_server_fd_to_handle( int fd, unsigned int access, unsigned int attributes, obj_handle_t *handle ) { int ret; *handle = 0; wine_server_send_fd( fd ); SERVER_START_REQ( alloc_file_handle ) { req->access = access; req->attributes = attributes; req->fd = fd; if (!(ret = wine_server_call( req ))) *handle = reply->handle; } SERVER_END_REQ; return ret; } /*********************************************************************** * wine_server_handle_to_fd (NTDLL.@) * * Retrieve the file descriptor corresponding to a file handle. * * PARAMS * handle [I] Wine file handle. * access [I] Win32 file access rights requested. * unix_fd [O] Address where Unix file descriptor will be stored. * options [O] Address where the file open options will be stored. Optional. * * RETURNS * NTSTATUS code */ int wine_server_handle_to_fd( obj_handle_t handle, unsigned int access, int *unix_fd, unsigned int *options ) { int needs_close, ret = server_get_unix_fd( handle, access, unix_fd, &needs_close, NULL, options ); if (!ret && !needs_close) { if ((*unix_fd = dup(*unix_fd)) == -1) ret = FILE_GetNtStatus(); } return ret; } /*********************************************************************** * wine_server_release_fd (NTDLL.@) * * Release the Unix file descriptor returned by wine_server_handle_to_fd. * * PARAMS * handle [I] Wine file handle. * unix_fd [I] Unix file descriptor to release. * * RETURNS * nothing */ void wine_server_release_fd( obj_handle_t handle, int unix_fd ) { close( unix_fd ); } /*********************************************************************** * start_server * * Start a new wine server. */ static void start_server(void) { static int started; /* we only try once */ char *argv[3]; static char wineserver[] = "server/wineserver"; static char debug[] = "-d"; if (!started) { int status; int pid = fork(); if (pid == -1) fatal_perror( "fork" ); if (!pid) { argv[0] = wineserver; argv[1] = TRACE_ON(server) ? debug : NULL; argv[2] = NULL; wine_exec_wine_binary( argv[0], argv, getenv("WINESERVER") ); fatal_error( "could not exec wineserver\n" ); } waitpid( pid, &status, 0 ); status = WIFEXITED(status) ? WEXITSTATUS(status) : 1; if (status == 2) return; /* server lock held by someone else, will retry later */ if (status) exit(status); /* server failed */ started = 1; } } /*********************************************************************** * server_connect_error * * Try to display a meaningful explanation of why we couldn't connect * to the server. */ static void server_connect_error( const char *serverdir ) { int fd; struct flock fl; if ((fd = open( LOCKNAME, O_WRONLY )) == -1) fatal_error( "for some mysterious reason, the wine server never started.\n" ); fl.l_type = F_WRLCK; fl.l_whence = SEEK_SET; fl.l_start = 0; fl.l_len = 1; if (fcntl( fd, F_GETLK, &fl ) != -1) { if (fl.l_type == F_WRLCK) /* the file is locked */ fatal_error( "a wine server seems to be running, but I cannot connect to it.\n" " You probably need to kill that process (it might be pid %d).\n", (int)fl.l_pid ); fatal_error( "for some mysterious reason, the wine server failed to run.\n" ); } fatal_error( "the file system of '%s' doesn't support locks,\n" " and there is a 'socket' file in that directory that prevents wine from starting.\n" " You should make sure no wine server is running, remove that file and try again.\n", serverdir ); } /*********************************************************************** * server_connect * * Attempt to connect to an existing server socket. * We need to be in the server directory already. */ static int server_connect( const char *serverdir ) { struct sockaddr_un addr; struct stat st; int s, slen, retry, fd_cwd; /* retrieve the current directory */ fd_cwd = open( ".", O_RDONLY ); if (fd_cwd != -1) fcntl( fd_cwd, F_SETFD, 1 ); /* set close on exec flag */ /* chdir to the server directory */ if (chdir( serverdir ) == -1) { if (errno != ENOENT) fatal_perror( "chdir to %s", serverdir ); start_server(); if (chdir( serverdir ) == -1) fatal_perror( "chdir to %s", serverdir ); } /* make sure we are at the right place */ if (stat( ".", &st ) == -1) fatal_perror( "stat %s", serverdir ); if (st.st_uid != getuid()) fatal_error( "'%s' is not owned by you\n", serverdir ); if (st.st_mode & 077) fatal_error( "'%s' must not be accessible by other users\n", serverdir ); for (retry = 0; retry < 6; retry++) { /* if not the first try, wait a bit to leave the previous server time to exit */ if (retry) { usleep( 100000 * retry * retry ); start_server(); if (lstat( SOCKETNAME, &st ) == -1) continue; /* still no socket, wait a bit more */ } else if (lstat( SOCKETNAME, &st ) == -1) /* check for an already existing socket */ { if (errno != ENOENT) fatal_perror( "lstat %s/%s", serverdir, SOCKETNAME ); start_server(); if (lstat( SOCKETNAME, &st ) == -1) continue; /* still no socket, wait a bit more */ } /* make sure the socket is sane (ISFIFO needed for Solaris) */ if (!S_ISSOCK(st.st_mode) && !S_ISFIFO(st.st_mode)) fatal_error( "'%s/%s' is not a socket\n", serverdir, SOCKETNAME ); if (st.st_uid != getuid()) fatal_error( "'%s/%s' is not owned by you\n", serverdir, SOCKETNAME ); /* try to connect to it */ addr.sun_family = AF_UNIX; strcpy( addr.sun_path, SOCKETNAME ); slen = sizeof(addr) - sizeof(addr.sun_path) + strlen(addr.sun_path) + 1; #ifdef HAVE_STRUCT_SOCKADDR_UN_SUN_LEN addr.sun_len = slen; #endif if ((s = socket( AF_UNIX, SOCK_STREAM, 0 )) == -1) fatal_perror( "socket" ); if (connect( s, (struct sockaddr *)&addr, slen ) != -1) { /* switch back to the starting directory */ if (fd_cwd != -1) { fchdir( fd_cwd ); close( fd_cwd ); } fcntl( s, F_SETFD, 1 ); /* set close on exec flag */ return s; } close( s ); } server_connect_error( serverdir ); } /*********************************************************************** * rm_rf * * Remove a directory and all its contents; helper for create_config_dir. */ static void rm_rf( const char *path ) { int err = errno; /* preserve errno */ DIR *dir; char *buffer, *p; struct stat st; struct dirent *de; if (!(buffer = malloc( strlen(path) + 256 + 1 ))) goto done; strcpy( buffer, path ); p = buffer + strlen(buffer); *p++ = '/'; if ((dir = opendir( path ))) { while ((de = readdir( dir ))) { if (!strcmp( de->d_name, "." ) || !strcmp( de->d_name, ".." )) continue; strcpy( p, de->d_name ); if (unlink( buffer ) != -1) continue; if (errno == EISDIR || (errno == EPERM && !lstat( buffer, &st ) && S_ISDIR(st.st_mode))) { /* recurse in the sub-directory */ rm_rf( buffer ); } } closedir( dir ); } free( buffer ); rmdir( path ); done: errno = err; } /*********************************************************************** * create_config_dir * * Create the wine configuration dir (~/.wine). */ static void create_config_dir(void) { const char *config_dir = wine_get_config_dir(); char *tmp_dir; int fd; pid_t pid, wret; if (!(tmp_dir = malloc( strlen(config_dir) + sizeof("-XXXXXX") ))) fatal_error( "out of memory\n" ); strcpy( tmp_dir, config_dir ); strcat( tmp_dir, "-XXXXXX" ); if ((fd = mkstemps( tmp_dir, 0 )) == -1) fatal_perror( "can't get temp file name for %s", config_dir ); close( fd ); unlink( tmp_dir ); if (mkdir( tmp_dir, 0777 ) == -1) fatal_perror( "cannot create temp dir %s", tmp_dir ); MESSAGE( "wine: creating configuration directory '%s'...\n", config_dir ); pid = fork(); if (pid == -1) { rmdir( tmp_dir ); fatal_perror( "fork" ); } if (!pid) { char *argv[6]; static char argv0[] = "tools/wineprefixcreate", argv1[] = "--quiet", argv2[] = "--wait", argv3[] = "--prefix"; argv[0] = argv0; argv[1] = argv1; argv[2] = argv2; argv[3] = argv3; argv[4] = tmp_dir; argv[5] = NULL; wine_exec_wine_binary( argv[0], argv, NULL ); rmdir( tmp_dir ); fatal_perror( "could not exec wineprefixcreate" ); } else { int status; while ((wret = waitpid( pid, &status, 0 )) != pid) { if (wret == -1 && errno != EINTR) fatal_perror( "wait4" ); } if (!WIFEXITED(status) || WEXITSTATUS(status)) { rm_rf( tmp_dir ); fatal_error( "wineprefixcreate failed while creating '%s'.\n", config_dir ); } } if (rename( tmp_dir, config_dir ) == -1) { rm_rf( tmp_dir ); if (errno != EEXIST && errno != ENOTEMPTY) fatal_perror( "rename '%s' to '%s'", tmp_dir, config_dir ); /* else it was probably created by a concurrent wine process */ } free( tmp_dir ); MESSAGE( "wine: '%s' created successfully.\n", config_dir ); } #ifdef __APPLE__ #include #include #include /* send our task port to the server */ static void send_server_task_port(void) { mach_port_t bootstrap_port, wineserver_port; kern_return_t kret; struct { mach_msg_header_t header; mach_msg_body_t body; mach_msg_port_descriptor_t task_port; } msg; if (task_get_bootstrap_port(mach_task_self(), &bootstrap_port) != KERN_SUCCESS) return; kret = bootstrap_look_up(bootstrap_port, (char*)wine_get_server_dir(), &wineserver_port); if (kret != KERN_SUCCESS) fatal_error( "cannot find the server port: 0x%08x\n", kret ); mach_port_deallocate(mach_task_self(), bootstrap_port); msg.header.msgh_bits = MACH_MSGH_BITS(MACH_MSG_TYPE_COPY_SEND, 0) | MACH_MSGH_BITS_COMPLEX; msg.header.msgh_size = sizeof(msg); msg.header.msgh_remote_port = wineserver_port; msg.header.msgh_local_port = MACH_PORT_NULL; msg.body.msgh_descriptor_count = 1; msg.task_port.name = mach_task_self(); msg.task_port.disposition = MACH_MSG_TYPE_COPY_SEND; msg.task_port.type = MACH_MSG_PORT_DESCRIPTOR; kret = mach_msg_send(&msg.header); if (kret != KERN_SUCCESS) server_protocol_error( "mach_msg_send failed: 0x%08x\n", kret ); mach_port_deallocate(mach_task_self(), wineserver_port); } #endif /* __APPLE__ */ /*********************************************************************** * server_init_process * * Start the server and create the initial socket pair. */ void server_init_process(void) { obj_handle_t dummy_handle; const char *env_socket = getenv( "WINESERVERSOCKET" ); if (env_socket) { fd_socket = atoi( env_socket ); if (fcntl( fd_socket, F_SETFD, 1 ) == -1) fatal_perror( "Bad server socket %d", fd_socket ); unsetenv( "WINESERVERSOCKET" ); } else { const char *server_dir = wine_get_server_dir(); if (!server_dir) /* this means the config dir doesn't exist */ { create_config_dir(); server_dir = wine_get_server_dir(); } /* connect to the server */ fd_socket = server_connect( server_dir ); } /* setup the signal mask */ sigemptyset( &server_block_set ); sigaddset( &server_block_set, SIGALRM ); sigaddset( &server_block_set, SIGIO ); sigaddset( &server_block_set, SIGINT ); sigaddset( &server_block_set, SIGHUP ); sigaddset( &server_block_set, SIGUSR1 ); sigaddset( &server_block_set, SIGUSR2 ); sigaddset( &server_block_set, SIGCHLD ); pthread_functions.sigprocmask( SIG_BLOCK, &server_block_set, NULL ); /* receive the first thread request fd on the main socket */ ntdll_get_thread_data()->request_fd = receive_fd( &dummy_handle ); #ifdef __APPLE__ send_server_task_port(); #endif } /*********************************************************************** * server_init_process_done */ NTSTATUS server_init_process_done(void) { PEB *peb = NtCurrentTeb()->Peb; IMAGE_NT_HEADERS *nt = RtlImageNtHeader( peb->ImageBaseAddress ); NTSTATUS status; /* Install signal handlers; this cannot be done earlier, since we cannot * send exceptions to the debugger before the create process event that * is sent by REQ_INIT_PROCESS_DONE. * We do need the handlers in place by the time the request is over, so * we set them up here. If we segfault between here and the server call * something is very wrong... */ if (!SIGNAL_Init()) exit(1); /* Signal the parent process to continue */ SERVER_START_REQ( init_process_done ) { req->module = peb->ImageBaseAddress; req->entry = (char *)peb->ImageBaseAddress + nt->OptionalHeader.AddressOfEntryPoint; req->gui = (nt->OptionalHeader.Subsystem != IMAGE_SUBSYSTEM_WINDOWS_CUI); status = wine_server_call( req ); } SERVER_END_REQ; pthread_functions.sigprocmask( SIG_UNBLOCK, &server_block_set, NULL ); return status; } /*********************************************************************** * server_init_thread * * Send an init thread request. Return 0 if OK. */ size_t server_init_thread( int unix_pid, int unix_tid, void *entry_point ) { int version, ret; int reply_pipe[2]; struct sigaction sig_act; size_t info_size; sig_act.sa_handler = SIG_IGN; sig_act.sa_flags = 0; sigemptyset( &sig_act.sa_mask ); /* ignore SIGPIPE so that we get an EPIPE error instead */ sigaction( SIGPIPE, &sig_act, NULL ); /* automatic child reaping to avoid zombies */ #ifdef SA_NOCLDWAIT sig_act.sa_flags |= SA_NOCLDWAIT; #endif sigaction( SIGCHLD, &sig_act, NULL ); /* create the server->client communication pipes */ if (pipe( reply_pipe ) == -1) server_protocol_perror( "pipe" ); if (pipe( ntdll_get_thread_data()->wait_fd ) == -1) server_protocol_perror( "pipe" ); wine_server_send_fd( reply_pipe[1] ); wine_server_send_fd( ntdll_get_thread_data()->wait_fd[1] ); ntdll_get_thread_data()->reply_fd = reply_pipe[0]; close( reply_pipe[1] ); /* set close on exec flag */ fcntl( ntdll_get_thread_data()->reply_fd, F_SETFD, 1 ); fcntl( ntdll_get_thread_data()->wait_fd[0], F_SETFD, 1 ); fcntl( ntdll_get_thread_data()->wait_fd[1], F_SETFD, 1 ); SERVER_START_REQ( init_thread ) { req->unix_pid = unix_pid; req->unix_tid = unix_tid; req->teb = NtCurrentTeb(); req->peb = NtCurrentTeb()->Peb; req->entry = entry_point; req->ldt_copy = &wine_ldt_copy; req->reply_fd = reply_pipe[1]; req->wait_fd = ntdll_get_thread_data()->wait_fd[1]; req->debug_level = (TRACE_ON(server) != 0); ret = wine_server_call( req ); NtCurrentTeb()->ClientId.UniqueProcess = (HANDLE)reply->pid; NtCurrentTeb()->ClientId.UniqueThread = (HANDLE)reply->tid; info_size = reply->info_size; version = reply->version; server_start_time = reply->server_start; } SERVER_END_REQ; if (ret) server_protocol_error( "init_thread failed with status %x\n", ret ); if (version != SERVER_PROTOCOL_VERSION) server_protocol_error( "version mismatch %d/%d.\n" "Your %s binary was not upgraded correctly,\n" "or you have an older one somewhere in your PATH.\n" "Or maybe the wrong wineserver is still running?\n", version, SERVER_PROTOCOL_VERSION, (version > SERVER_PROTOCOL_VERSION) ? "wine" : "wineserver" ); return info_size; }