1545 lines
50 KiB
C
1545 lines
50 KiB
C
/*
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* Wine server communication
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*
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* Copyright (C) 1998 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "config.h"
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#include "wine/port.h"
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#include <assert.h>
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#include <ctype.h>
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#ifdef HAVE_DIRENT_H
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# include <dirent.h>
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#endif
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#include <errno.h>
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#include <fcntl.h>
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#ifdef HAVE_LWP_H
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#include <lwp.h>
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#endif
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#ifdef HAVE_PTHREAD_NP_H
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# include <pthread_np.h>
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#endif
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#include <signal.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <string.h>
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#include <sys/types.h>
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#ifdef HAVE_SYS_SOCKET_H
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# include <sys/socket.h>
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#endif
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#ifdef HAVE_SYS_WAIT_H
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#include <sys/wait.h>
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#endif
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#ifdef HAVE_SYS_UN_H
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#include <sys/un.h>
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#endif
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#ifdef HAVE_SYS_MMAN_H
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#include <sys/mman.h>
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#endif
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#ifdef HAVE_SYS_PRCTL_H
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# include <sys/prctl.h>
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#endif
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#ifdef HAVE_SYS_STAT_H
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# include <sys/stat.h>
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#endif
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#ifdef HAVE_SYS_SYSCALL_H
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# include <sys/syscall.h>
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#endif
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#ifdef HAVE_SYS_UIO_H
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#include <sys/uio.h>
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#endif
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#ifdef HAVE_SYS_UCONTEXT_H
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# include <sys/ucontext.h>
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#endif
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#ifdef HAVE_SYS_THR_H
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#include <sys/thr.h>
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#endif
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#include "ntstatus.h"
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#define WIN32_NO_STATUS
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#include "windef.h"
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#include "winnt.h"
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#include "wine/library.h"
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#include "wine/server.h"
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#include "wine/debug.h"
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#include "ntdll_misc.h"
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WINE_DEFAULT_DEBUG_CHANNEL(server);
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/* Some versions of glibc don't define this */
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#ifndef SCM_RIGHTS
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#define SCM_RIGHTS 1
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#endif
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#ifndef MSG_CMSG_CLOEXEC
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#define MSG_CMSG_CLOEXEC 0
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#endif
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#define SOCKETNAME "socket" /* name of the socket file */
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#define LOCKNAME "lock" /* name of the lock file */
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#ifdef __i386__
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static const enum cpu_type client_cpu = CPU_x86;
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#elif defined(__x86_64__)
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static const enum cpu_type client_cpu = CPU_x86_64;
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#elif defined(__powerpc__)
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static const enum cpu_type client_cpu = CPU_POWERPC;
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#elif defined(__arm__)
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static const enum cpu_type client_cpu = CPU_ARM;
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#elif defined(__aarch64__)
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static const enum cpu_type client_cpu = CPU_ARM64;
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#else
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#error Unsupported CPU
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#endif
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unsigned int server_cpus = 0;
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BOOL is_wow64 = FALSE;
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timeout_t server_start_time = 0; /* time of server startup */
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sigset_t server_block_set; /* signals to block during server calls */
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static int fd_socket = -1; /* socket to exchange file descriptors with the server */
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static pid_t server_pid;
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static RTL_CRITICAL_SECTION fd_cache_section;
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static RTL_CRITICAL_SECTION_DEBUG critsect_debug =
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{
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0, 0, &fd_cache_section,
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{ &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
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0, 0, { (DWORD_PTR)(__FILE__ ": fd_cache_section") }
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};
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static RTL_CRITICAL_SECTION fd_cache_section = { &critsect_debug, -1, 0, 0, 0, 0 };
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/* atomically exchange a 64-bit value */
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static inline LONG64 interlocked_xchg64( LONG64 *dest, LONG64 val )
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{
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#ifdef _WIN64
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return (LONG64)interlocked_xchg_ptr( (void **)dest, (void *)val );
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#else
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LONG64 tmp = *dest;
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while (interlocked_cmpxchg64( dest, val, tmp ) != tmp) tmp = *dest;
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return tmp;
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#endif
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}
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#ifdef __GNUC__
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static void fatal_error( const char *err, ... ) __attribute__((noreturn, format(printf,1,2)));
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static void fatal_perror( const char *err, ... ) __attribute__((noreturn, format(printf,1,2)));
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static void server_connect_error( const char *serverdir ) __attribute__((noreturn));
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#endif
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/* die on a fatal error; use only during initialization */
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static void fatal_error( const char *err, ... )
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{
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va_list args;
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va_start( args, err );
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fprintf( stderr, "wine: " );
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vfprintf( stderr, err, args );
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va_end( args );
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exit(1);
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}
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/* die on a fatal error; use only during initialization */
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static void fatal_perror( const char *err, ... )
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{
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va_list args;
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va_start( args, err );
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fprintf( stderr, "wine: " );
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vfprintf( stderr, err, args );
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perror( " " );
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va_end( args );
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exit(1);
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}
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/***********************************************************************
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* server_protocol_error
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*/
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static DECLSPEC_NORETURN void server_protocol_error( const char *err, ... )
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{
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va_list args;
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va_start( args, err );
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fprintf( stderr, "wine client error:%x: ", GetCurrentThreadId() );
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vfprintf( stderr, err, args );
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va_end( args );
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abort_thread(1);
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}
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/***********************************************************************
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* server_protocol_perror
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*/
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static DECLSPEC_NORETURN void server_protocol_perror( const char *err )
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{
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fprintf( stderr, "wine client error:%x: ", GetCurrentThreadId() );
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perror( err );
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abort_thread(1);
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}
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/***********************************************************************
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* send_request
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*
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* Send a request to the server.
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*/
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static unsigned int send_request( const struct __server_request_info *req )
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{
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unsigned int i;
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int ret;
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if (!req->u.req.request_header.request_size)
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{
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if ((ret = write( ntdll_get_thread_data()->request_fd, &req->u.req,
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sizeof(req->u.req) )) == sizeof(req->u.req)) return STATUS_SUCCESS;
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}
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else
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{
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struct iovec vec[__SERVER_MAX_DATA+1];
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vec[0].iov_base = (void *)&req->u.req;
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vec[0].iov_len = sizeof(req->u.req);
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for (i = 0; i < req->data_count; i++)
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{
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vec[i+1].iov_base = (void *)req->data[i].ptr;
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vec[i+1].iov_len = req->data[i].size;
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}
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if ((ret = writev( ntdll_get_thread_data()->request_fd, vec, i+1 )) ==
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req->u.req.request_header.request_size + sizeof(req->u.req)) return STATUS_SUCCESS;
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}
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if (ret >= 0) server_protocol_error( "partial write %d\n", ret );
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if (errno == EPIPE) abort_thread(0);
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if (errno == EFAULT) return STATUS_ACCESS_VIOLATION;
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server_protocol_perror( "write" );
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}
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/***********************************************************************
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* read_reply_data
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*
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* Read data from the reply buffer; helper for wait_reply.
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*/
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static void read_reply_data( void *buffer, size_t size )
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{
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int ret;
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for (;;)
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{
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if ((ret = read( ntdll_get_thread_data()->reply_fd, buffer, size )) > 0)
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{
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if (!(size -= ret)) return;
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buffer = (char *)buffer + ret;
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continue;
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}
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if (!ret) break;
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if (errno == EINTR) continue;
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if (errno == EPIPE) break;
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server_protocol_perror("read");
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}
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/* the server closed the connection; time to die... */
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abort_thread(0);
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}
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/***********************************************************************
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* wait_reply
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*
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* Wait for a reply from the server.
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*/
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static inline unsigned int wait_reply( struct __server_request_info *req )
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{
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read_reply_data( &req->u.reply, sizeof(req->u.reply) );
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if (req->u.reply.reply_header.reply_size)
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read_reply_data( req->reply_data, req->u.reply.reply_header.reply_size );
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return req->u.reply.reply_header.error;
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}
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/***********************************************************************
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* server_call_unlocked
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*/
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unsigned int server_call_unlocked( void *req_ptr )
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{
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struct __server_request_info * const req = req_ptr;
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unsigned int ret;
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if ((ret = send_request( req ))) return ret;
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return wait_reply( req );
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}
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/***********************************************************************
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* wine_server_call (NTDLL.@)
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*
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* Perform a server call.
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*
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* PARAMS
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* req_ptr [I/O] Function dependent data
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*
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* RETURNS
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* Depends on server function being called, but usually an NTSTATUS code.
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*
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* NOTES
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* Use the SERVER_START_REQ and SERVER_END_REQ to help you fill out the
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* server request structure for the particular call. E.g:
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*| SERVER_START_REQ( event_op )
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*| {
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*| req->handle = handle;
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*| req->op = SET_EVENT;
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*| ret = wine_server_call( req );
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*| }
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*| SERVER_END_REQ;
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*/
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unsigned int wine_server_call( void *req_ptr )
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{
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sigset_t old_set;
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unsigned int ret;
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pthread_sigmask( SIG_BLOCK, &server_block_set, &old_set );
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ret = server_call_unlocked( req_ptr );
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pthread_sigmask( SIG_SETMASK, &old_set, NULL );
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return ret;
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}
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/***********************************************************************
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* server_enter_uninterrupted_section
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*/
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void server_enter_uninterrupted_section( RTL_CRITICAL_SECTION *cs, sigset_t *sigset )
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{
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pthread_sigmask( SIG_BLOCK, &server_block_set, sigset );
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RtlEnterCriticalSection( cs );
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}
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/***********************************************************************
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* server_leave_uninterrupted_section
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*/
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void server_leave_uninterrupted_section( RTL_CRITICAL_SECTION *cs, sigset_t *sigset )
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{
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RtlLeaveCriticalSection( cs );
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pthread_sigmask( SIG_SETMASK, sigset, NULL );
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}
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/***********************************************************************
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* wait_select_reply
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*
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* Wait for a reply on the waiting pipe of the current thread.
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*/
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static int wait_select_reply( void *cookie )
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{
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int signaled;
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struct wake_up_reply reply;
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for (;;)
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{
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int ret;
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ret = read( ntdll_get_thread_data()->wait_fd[0], &reply, sizeof(reply) );
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if (ret == sizeof(reply))
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{
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if (!reply.cookie) abort_thread( reply.signaled ); /* thread got killed */
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if (wine_server_get_ptr(reply.cookie) == cookie) return reply.signaled;
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/* we stole another reply, wait for the real one */
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signaled = wait_select_reply( cookie );
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/* and now put the wrong one back in the pipe */
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for (;;)
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{
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ret = write( ntdll_get_thread_data()->wait_fd[1], &reply, sizeof(reply) );
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if (ret == sizeof(reply)) break;
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if (ret >= 0) server_protocol_error( "partial wakeup write %d\n", ret );
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if (errno == EINTR) continue;
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server_protocol_perror("wakeup write");
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}
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return signaled;
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}
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if (ret >= 0) server_protocol_error( "partial wakeup read %d\n", ret );
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if (errno == EINTR) continue;
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server_protocol_perror("wakeup read");
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}
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}
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/***********************************************************************
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* invoke_apc
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*
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* Invoke a single APC. Return TRUE if a user APC has been run.
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*/
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static BOOL invoke_apc( const apc_call_t *call, apc_result_t *result )
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{
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BOOL user_apc = FALSE;
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SIZE_T size;
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void *addr;
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memset( result, 0, sizeof(*result) );
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switch (call->type)
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{
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case APC_NONE:
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break;
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case APC_USER:
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{
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void (WINAPI *func)(ULONG_PTR,ULONG_PTR,ULONG_PTR) = wine_server_get_ptr( call->user.func );
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func( call->user.args[0], call->user.args[1], call->user.args[2] );
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user_apc = TRUE;
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break;
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}
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case APC_TIMER:
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{
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void (WINAPI *func)(void*, unsigned int, unsigned int) = wine_server_get_ptr( call->timer.func );
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func( wine_server_get_ptr( call->timer.arg ),
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(DWORD)call->timer.time, (DWORD)(call->timer.time >> 32) );
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user_apc = TRUE;
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break;
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}
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case APC_ASYNC_IO:
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{
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IO_STATUS_BLOCK *iosb = wine_server_get_ptr( call->async_io.sb );
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NTSTATUS (**user)(void *, IO_STATUS_BLOCK *, NTSTATUS) = wine_server_get_ptr( call->async_io.user );
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result->type = call->type;
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result->async_io.status = (*user)( user, iosb, call->async_io.status );
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if (result->async_io.status != STATUS_PENDING)
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result->async_io.total = iosb->Information;
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break;
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}
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case APC_VIRTUAL_ALLOC:
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result->type = call->type;
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addr = wine_server_get_ptr( call->virtual_alloc.addr );
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size = call->virtual_alloc.size;
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if ((ULONG_PTR)addr == call->virtual_alloc.addr && size == call->virtual_alloc.size)
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{
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result->virtual_alloc.status = NtAllocateVirtualMemory( NtCurrentProcess(), &addr,
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call->virtual_alloc.zero_bits, &size,
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call->virtual_alloc.op_type,
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call->virtual_alloc.prot );
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result->virtual_alloc.addr = wine_server_client_ptr( addr );
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result->virtual_alloc.size = size;
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}
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else result->virtual_alloc.status = STATUS_WORKING_SET_LIMIT_RANGE;
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break;
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case APC_VIRTUAL_FREE:
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result->type = call->type;
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addr = wine_server_get_ptr( call->virtual_free.addr );
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size = call->virtual_free.size;
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if ((ULONG_PTR)addr == call->virtual_free.addr && size == call->virtual_free.size)
|
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{
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result->virtual_free.status = NtFreeVirtualMemory( NtCurrentProcess(), &addr, &size,
|
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call->virtual_free.op_type );
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result->virtual_free.addr = wine_server_client_ptr( addr );
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result->virtual_free.size = size;
|
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}
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else result->virtual_free.status = STATUS_INVALID_PARAMETER;
|
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break;
|
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case APC_VIRTUAL_QUERY:
|
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{
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MEMORY_BASIC_INFORMATION info;
|
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result->type = call->type;
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addr = wine_server_get_ptr( call->virtual_query.addr );
|
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if ((ULONG_PTR)addr == call->virtual_query.addr)
|
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result->virtual_query.status = NtQueryVirtualMemory( NtCurrentProcess(),
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addr, MemoryBasicInformation, &info,
|
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sizeof(info), NULL );
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else
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result->virtual_query.status = STATUS_WORKING_SET_LIMIT_RANGE;
|
|
|
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if (result->virtual_query.status == STATUS_SUCCESS)
|
|
{
|
|
result->virtual_query.base = wine_server_client_ptr( info.BaseAddress );
|
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result->virtual_query.alloc_base = wine_server_client_ptr( info.AllocationBase );
|
|
result->virtual_query.size = info.RegionSize;
|
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result->virtual_query.prot = info.Protect;
|
|
result->virtual_query.alloc_prot = info.AllocationProtect;
|
|
result->virtual_query.state = info.State >> 12;
|
|
result->virtual_query.alloc_type = info.Type >> 16;
|
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}
|
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break;
|
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}
|
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case APC_VIRTUAL_PROTECT:
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result->type = call->type;
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addr = wine_server_get_ptr( call->virtual_protect.addr );
|
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size = call->virtual_protect.size;
|
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if ((ULONG_PTR)addr == call->virtual_protect.addr && size == call->virtual_protect.size)
|
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{
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result->virtual_protect.status = NtProtectVirtualMemory( NtCurrentProcess(), &addr, &size,
|
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call->virtual_protect.prot,
|
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&result->virtual_protect.prot );
|
|
result->virtual_protect.addr = wine_server_client_ptr( addr );
|
|
result->virtual_protect.size = size;
|
|
}
|
|
else result->virtual_protect.status = STATUS_INVALID_PARAMETER;
|
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break;
|
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case APC_VIRTUAL_FLUSH:
|
|
result->type = call->type;
|
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addr = wine_server_get_ptr( call->virtual_flush.addr );
|
|
size = call->virtual_flush.size;
|
|
if ((ULONG_PTR)addr == call->virtual_flush.addr && size == call->virtual_flush.size)
|
|
{
|
|
result->virtual_flush.status = NtFlushVirtualMemory( NtCurrentProcess(),
|
|
(const void **)&addr, &size, 0 );
|
|
result->virtual_flush.addr = wine_server_client_ptr( addr );
|
|
result->virtual_flush.size = size;
|
|
}
|
|
else result->virtual_flush.status = STATUS_INVALID_PARAMETER;
|
|
break;
|
|
case APC_VIRTUAL_LOCK:
|
|
result->type = call->type;
|
|
addr = wine_server_get_ptr( call->virtual_lock.addr );
|
|
size = call->virtual_lock.size;
|
|
if ((ULONG_PTR)addr == call->virtual_lock.addr && size == call->virtual_lock.size)
|
|
{
|
|
result->virtual_lock.status = NtLockVirtualMemory( NtCurrentProcess(), &addr, &size, 0 );
|
|
result->virtual_lock.addr = wine_server_client_ptr( addr );
|
|
result->virtual_lock.size = size;
|
|
}
|
|
else result->virtual_lock.status = STATUS_INVALID_PARAMETER;
|
|
break;
|
|
case APC_VIRTUAL_UNLOCK:
|
|
result->type = call->type;
|
|
addr = wine_server_get_ptr( call->virtual_unlock.addr );
|
|
size = call->virtual_unlock.size;
|
|
if ((ULONG_PTR)addr == call->virtual_unlock.addr && size == call->virtual_unlock.size)
|
|
{
|
|
result->virtual_unlock.status = NtUnlockVirtualMemory( NtCurrentProcess(), &addr, &size, 0 );
|
|
result->virtual_unlock.addr = wine_server_client_ptr( addr );
|
|
result->virtual_unlock.size = size;
|
|
}
|
|
else result->virtual_unlock.status = STATUS_INVALID_PARAMETER;
|
|
break;
|
|
case APC_MAP_VIEW:
|
|
result->type = call->type;
|
|
addr = wine_server_get_ptr( call->map_view.addr );
|
|
size = call->map_view.size;
|
|
if ((ULONG_PTR)addr == call->map_view.addr && size == call->map_view.size)
|
|
{
|
|
LARGE_INTEGER offset;
|
|
offset.QuadPart = call->map_view.offset;
|
|
result->map_view.status = NtMapViewOfSection( wine_server_ptr_handle(call->map_view.handle),
|
|
NtCurrentProcess(), &addr,
|
|
call->map_view.zero_bits, 0,
|
|
&offset, &size, ViewShare,
|
|
call->map_view.alloc_type, call->map_view.prot );
|
|
result->map_view.addr = wine_server_client_ptr( addr );
|
|
result->map_view.size = size;
|
|
}
|
|
else result->map_view.status = STATUS_INVALID_PARAMETER;
|
|
NtClose( wine_server_ptr_handle(call->map_view.handle) );
|
|
break;
|
|
case APC_UNMAP_VIEW:
|
|
result->type = call->type;
|
|
addr = wine_server_get_ptr( call->unmap_view.addr );
|
|
if ((ULONG_PTR)addr == call->unmap_view.addr)
|
|
result->unmap_view.status = NtUnmapViewOfSection( NtCurrentProcess(), addr );
|
|
else
|
|
result->unmap_view.status = STATUS_INVALID_PARAMETER;
|
|
break;
|
|
case APC_CREATE_THREAD:
|
|
{
|
|
CLIENT_ID id;
|
|
HANDLE handle;
|
|
SIZE_T reserve = call->create_thread.reserve;
|
|
SIZE_T commit = call->create_thread.commit;
|
|
void *func = wine_server_get_ptr( call->create_thread.func );
|
|
void *arg = wine_server_get_ptr( call->create_thread.arg );
|
|
|
|
result->type = call->type;
|
|
if (reserve == call->create_thread.reserve && commit == call->create_thread.commit &&
|
|
(ULONG_PTR)func == call->create_thread.func && (ULONG_PTR)arg == call->create_thread.arg)
|
|
{
|
|
result->create_thread.status = RtlCreateUserThread( NtCurrentProcess(), NULL,
|
|
call->create_thread.suspend, NULL,
|
|
reserve, commit, func, arg, &handle, &id );
|
|
result->create_thread.handle = wine_server_obj_handle( handle );
|
|
result->create_thread.tid = HandleToULong(id.UniqueThread);
|
|
}
|
|
else result->create_thread.status = STATUS_INVALID_PARAMETER;
|
|
break;
|
|
}
|
|
default:
|
|
server_protocol_error( "get_apc_request: bad type %d\n", call->type );
|
|
break;
|
|
}
|
|
return user_apc;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* server_select
|
|
*/
|
|
unsigned int server_select( const select_op_t *select_op, data_size_t size, UINT flags,
|
|
const LARGE_INTEGER *timeout )
|
|
{
|
|
unsigned int ret;
|
|
int cookie;
|
|
BOOL user_apc = FALSE;
|
|
obj_handle_t apc_handle = 0;
|
|
apc_call_t call;
|
|
apc_result_t result;
|
|
timeout_t abs_timeout = timeout ? timeout->QuadPart : TIMEOUT_INFINITE;
|
|
|
|
memset( &result, 0, sizeof(result) );
|
|
|
|
for (;;)
|
|
{
|
|
SERVER_START_REQ( select )
|
|
{
|
|
req->flags = flags;
|
|
req->cookie = wine_server_client_ptr( &cookie );
|
|
req->prev_apc = apc_handle;
|
|
req->timeout = abs_timeout;
|
|
wine_server_add_data( req, &result, sizeof(result) );
|
|
wine_server_add_data( req, select_op, size );
|
|
ret = wine_server_call( req );
|
|
abs_timeout = reply->timeout;
|
|
apc_handle = reply->apc_handle;
|
|
call = reply->call;
|
|
}
|
|
SERVER_END_REQ;
|
|
if (ret == STATUS_PENDING) ret = wait_select_reply( &cookie );
|
|
if (ret != STATUS_USER_APC) break;
|
|
if (invoke_apc( &call, &result ))
|
|
{
|
|
/* if we ran a user apc we have to check once more if additional apcs are queued,
|
|
* but we don't want to wait */
|
|
abs_timeout = 0;
|
|
user_apc = TRUE;
|
|
size = 0;
|
|
}
|
|
|
|
/* don't signal multiple times */
|
|
if (size >= sizeof(select_op->signal_and_wait) && select_op->op == SELECT_SIGNAL_AND_WAIT)
|
|
size = offsetof( select_op_t, signal_and_wait.signal );
|
|
}
|
|
|
|
if (ret == STATUS_TIMEOUT && user_apc) ret = STATUS_USER_APC;
|
|
|
|
/* A test on Windows 2000 shows that Windows always yields during
|
|
a wait, but a wait that is hit by an event gets a priority
|
|
boost as well. This seems to model that behavior the closest. */
|
|
if (ret == STATUS_TIMEOUT) NtYieldExecution();
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* server_queue_process_apc
|
|
*/
|
|
unsigned int server_queue_process_apc( HANDLE process, const apc_call_t *call, apc_result_t *result )
|
|
{
|
|
for (;;)
|
|
{
|
|
unsigned int ret;
|
|
HANDLE handle = 0;
|
|
BOOL self = FALSE;
|
|
|
|
SERVER_START_REQ( queue_apc )
|
|
{
|
|
req->handle = wine_server_obj_handle( process );
|
|
req->call = *call;
|
|
if (!(ret = wine_server_call( req )))
|
|
{
|
|
handle = wine_server_ptr_handle( reply->handle );
|
|
self = reply->self;
|
|
}
|
|
}
|
|
SERVER_END_REQ;
|
|
if (ret != STATUS_SUCCESS) return ret;
|
|
|
|
if (self)
|
|
{
|
|
invoke_apc( call, result );
|
|
}
|
|
else
|
|
{
|
|
NtWaitForSingleObject( handle, FALSE, NULL );
|
|
|
|
SERVER_START_REQ( get_apc_result )
|
|
{
|
|
req->handle = wine_server_obj_handle( handle );
|
|
if (!(ret = wine_server_call( req ))) *result = reply->result;
|
|
}
|
|
SERVER_END_REQ;
|
|
|
|
if (!ret && result->type == APC_NONE) continue; /* APC didn't run, try again */
|
|
}
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* wine_server_send_fd (NTDLL.@)
|
|
*
|
|
* Send a file descriptor to the server.
|
|
*
|
|
* PARAMS
|
|
* fd [I] file descriptor to send
|
|
*
|
|
* RETURNS
|
|
* nothing
|
|
*/
|
|
void CDECL wine_server_send_fd( int fd )
|
|
{
|
|
struct send_fd data;
|
|
struct msghdr msghdr;
|
|
struct iovec vec;
|
|
int ret;
|
|
|
|
#ifdef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
|
|
msghdr.msg_accrights = (void *)&fd;
|
|
msghdr.msg_accrightslen = sizeof(fd);
|
|
#else /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
|
|
char cmsg_buffer[256];
|
|
struct cmsghdr *cmsg;
|
|
msghdr.msg_control = cmsg_buffer;
|
|
msghdr.msg_controllen = sizeof(cmsg_buffer);
|
|
msghdr.msg_flags = 0;
|
|
cmsg = CMSG_FIRSTHDR( &msghdr );
|
|
cmsg->cmsg_len = CMSG_LEN( sizeof(fd) );
|
|
cmsg->cmsg_level = SOL_SOCKET;
|
|
cmsg->cmsg_type = SCM_RIGHTS;
|
|
*(int *)CMSG_DATA(cmsg) = fd;
|
|
msghdr.msg_controllen = cmsg->cmsg_len;
|
|
#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 *)&data;
|
|
vec.iov_len = sizeof(data);
|
|
|
|
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) 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;
|
|
struct msghdr msghdr;
|
|
int ret, fd = -1;
|
|
|
|
#ifdef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
|
|
msghdr.msg_accrights = (void *)&fd;
|
|
msghdr.msg_accrightslen = sizeof(fd);
|
|
#else /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
|
|
char cmsg_buffer[256];
|
|
msghdr.msg_control = cmsg_buffer;
|
|
msghdr.msg_controllen = sizeof(cmsg_buffer);
|
|
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, MSG_CMSG_CLOEXEC )) > 0)
|
|
{
|
|
#ifndef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
|
|
struct cmsghdr *cmsg;
|
|
for (cmsg = CMSG_FIRSTHDR( &msghdr ); cmsg; cmsg = CMSG_NXTHDR( &msghdr, cmsg ))
|
|
{
|
|
if (cmsg->cmsg_level != SOL_SOCKET) continue;
|
|
if (cmsg->cmsg_type == SCM_RIGHTS) fd = *(int *)CMSG_DATA(cmsg);
|
|
#ifdef SCM_CREDENTIALS
|
|
else if (cmsg->cmsg_type == SCM_CREDENTIALS)
|
|
{
|
|
struct ucred *ucred = (struct ucred *)CMSG_DATA(cmsg);
|
|
server_pid = ucred->pid;
|
|
}
|
|
#endif
|
|
}
|
|
#endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
|
|
if (fd != -1) fcntl( fd, F_SETFD, FD_CLOEXEC ); /* in case MSG_CMSG_CLOEXEC is not supported */
|
|
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... */
|
|
abort_thread(0);
|
|
}
|
|
|
|
|
|
/***********************************************************************/
|
|
/* fd cache support */
|
|
|
|
union fd_cache_entry
|
|
{
|
|
LONG64 data;
|
|
struct
|
|
{
|
|
int fd;
|
|
enum server_fd_type type : 5;
|
|
unsigned int access : 3;
|
|
unsigned int options : 24;
|
|
} s;
|
|
};
|
|
|
|
C_ASSERT( sizeof(union fd_cache_entry) == sizeof(LONG64) );
|
|
|
|
#define FD_CACHE_BLOCK_SIZE (65536 / sizeof(union fd_cache_entry))
|
|
#define FD_CACHE_ENTRIES 128
|
|
|
|
static union fd_cache_entry *fd_cache[FD_CACHE_ENTRIES];
|
|
static union fd_cache_entry fd_cache_initial_block[FD_CACHE_BLOCK_SIZE];
|
|
|
|
static inline unsigned int handle_to_index( HANDLE handle, unsigned int *entry )
|
|
{
|
|
unsigned int idx = (wine_server_obj_handle(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 BOOL add_fd_to_cache( HANDLE handle, int fd, enum server_fd_type type,
|
|
unsigned int access, unsigned int options )
|
|
{
|
|
unsigned int entry, idx = handle_to_index( handle, &entry );
|
|
union fd_cache_entry cache;
|
|
|
|
if (entry >= FD_CACHE_ENTRIES)
|
|
{
|
|
FIXME( "too many allocated handles, not caching %p\n", handle );
|
|
return FALSE;
|
|
}
|
|
|
|
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(union fd_cache_entry),
|
|
PROT_READ | PROT_WRITE, 0 );
|
|
if (ptr == MAP_FAILED) return FALSE;
|
|
fd_cache[entry] = ptr;
|
|
}
|
|
}
|
|
|
|
/* store fd+1 so that 0 can be used as the unset value */
|
|
cache.s.fd = fd + 1;
|
|
cache.s.type = type;
|
|
cache.s.access = access;
|
|
cache.s.options = options;
|
|
cache.data = interlocked_xchg64( &fd_cache[entry][idx].data, cache.data );
|
|
assert( !cache.s.fd );
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* get_cached_fd
|
|
*/
|
|
static inline NTSTATUS get_cached_fd( HANDLE handle, int *fd, enum server_fd_type *type,
|
|
unsigned int *access, unsigned int *options )
|
|
{
|
|
unsigned int entry, idx = handle_to_index( handle, &entry );
|
|
union fd_cache_entry cache;
|
|
|
|
if (entry >= FD_CACHE_ENTRIES || !fd_cache[entry]) return STATUS_INVALID_HANDLE;
|
|
|
|
cache.data = interlocked_cmpxchg64( &fd_cache[entry][idx].data, 0, 0 );
|
|
if (!cache.data) return STATUS_INVALID_HANDLE;
|
|
|
|
/* if fd type is invalid, fd stores an error value */
|
|
if (cache.s.type == FD_TYPE_INVALID) return cache.s.fd - 1;
|
|
|
|
*fd = cache.s.fd - 1;
|
|
if (type) *type = cache.s.type;
|
|
if (access) *access = cache.s.access;
|
|
if (options) *options = cache.s.options;
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* server_remove_fd_from_cache
|
|
*/
|
|
int server_remove_fd_from_cache( HANDLE handle )
|
|
{
|
|
unsigned int entry, idx = handle_to_index( handle, &entry );
|
|
int fd = -1;
|
|
|
|
if (entry < FD_CACHE_ENTRIES && fd_cache[entry])
|
|
{
|
|
union fd_cache_entry cache;
|
|
cache.data = interlocked_xchg64( &fd_cache[entry][idx].data, 0 );
|
|
if (cache.s.type != FD_TYPE_INVALID) fd = cache.s.fd - 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( HANDLE 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, fd = -1;
|
|
unsigned int access = 0;
|
|
|
|
*unix_fd = -1;
|
|
*needs_close = 0;
|
|
wanted_access &= FILE_READ_DATA | FILE_WRITE_DATA | FILE_APPEND_DATA;
|
|
|
|
ret = get_cached_fd( handle, &fd, type, &access, options );
|
|
if (ret != STATUS_INVALID_HANDLE) goto done;
|
|
|
|
server_enter_uninterrupted_section( &fd_cache_section, &sigset );
|
|
ret = get_cached_fd( handle, &fd, type, &access, options );
|
|
if (ret == STATUS_INVALID_HANDLE)
|
|
{
|
|
SERVER_START_REQ( get_handle_fd )
|
|
{
|
|
req->handle = wine_server_obj_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( wine_server_ptr_handle(fd_handle) == handle );
|
|
*needs_close = (!reply->cacheable ||
|
|
!add_fd_to_cache( handle, fd, reply->type,
|
|
reply->access, reply->options ));
|
|
}
|
|
else ret = STATUS_TOO_MANY_OPENED_FILES;
|
|
}
|
|
else if (reply->cacheable)
|
|
{
|
|
add_fd_to_cache( handle, ret, FD_TYPE_INVALID, 0, 0 );
|
|
}
|
|
}
|
|
SERVER_END_REQ;
|
|
}
|
|
server_leave_uninterrupted_section( &fd_cache_section, &sigset );
|
|
|
|
done:
|
|
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 CDECL wine_server_fd_to_handle( int fd, unsigned int access, unsigned int attributes, HANDLE *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 = wine_server_ptr_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 CDECL wine_server_handle_to_fd( HANDLE 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 CDECL wine_server_release_fd( HANDLE handle, int unix_fd )
|
|
{
|
|
close( unix_fd );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* server_pipe
|
|
*
|
|
* Create a pipe for communicating with the server.
|
|
*/
|
|
int server_pipe( int fd[2] )
|
|
{
|
|
int ret;
|
|
#ifdef HAVE_PIPE2
|
|
static BOOL have_pipe2 = TRUE;
|
|
|
|
if (have_pipe2)
|
|
{
|
|
if (!(ret = pipe2( fd, O_CLOEXEC ))) return ret;
|
|
if (errno == ENOSYS || errno == EINVAL) have_pipe2 = FALSE; /* don't try again */
|
|
}
|
|
#endif
|
|
if (!(ret = pipe( fd )))
|
|
{
|
|
fcntl( fd[0], F_SETFD, FD_CLOEXEC );
|
|
fcntl( fd[1], F_SETFD, FD_CLOEXEC );
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* start_server
|
|
*
|
|
* Start a new wine server.
|
|
*/
|
|
static void start_server(void)
|
|
{
|
|
static BOOL 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 = TRUE;
|
|
}
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* setup_config_dir
|
|
*
|
|
* Setup the wine configuration dir.
|
|
*/
|
|
static void setup_config_dir(void)
|
|
{
|
|
const char *p, *config_dir = wine_get_config_dir();
|
|
|
|
if (chdir( config_dir ) == -1)
|
|
{
|
|
if (errno != ENOENT) fatal_perror( "chdir to %s\n", config_dir );
|
|
|
|
if ((p = strrchr( config_dir, '/' )) && p != config_dir)
|
|
{
|
|
struct stat st;
|
|
char *tmp_dir;
|
|
|
|
if (!(tmp_dir = malloc( p + 1 - config_dir ))) fatal_error( "out of memory\n" );
|
|
memcpy( tmp_dir, config_dir, p - config_dir );
|
|
tmp_dir[p - config_dir] = 0;
|
|
if (!stat( tmp_dir, &st ) && st.st_uid != getuid())
|
|
fatal_error( "'%s' is not owned by you, refusing to create a configuration directory there\n",
|
|
tmp_dir );
|
|
free( tmp_dir );
|
|
}
|
|
|
|
mkdir( config_dir, 0777 );
|
|
if (chdir( config_dir ) == -1) fatal_perror( "chdir to %s\n", config_dir );
|
|
|
|
MESSAGE( "wine: created the configuration directory '%s'\n", config_dir );
|
|
}
|
|
|
|
if (mkdir( "dosdevices", 0777 ) == -1)
|
|
{
|
|
if (errno == EEXIST) return;
|
|
fatal_perror( "cannot create %s/dosdevices\n", config_dir );
|
|
}
|
|
|
|
/* create the drive symlinks */
|
|
|
|
mkdir( "drive_c", 0777 );
|
|
symlink( "../drive_c", "dosdevices/c:" );
|
|
symlink( "/", "dosdevices/z:" );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* 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(void)
|
|
{
|
|
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, FD_CLOEXEC );
|
|
|
|
setup_config_dir();
|
|
serverdir = wine_get_server_dir();
|
|
|
|
/* 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" );
|
|
#ifdef SO_PASSCRED
|
|
else
|
|
{
|
|
int enable = 1;
|
|
setsockopt( s, SOL_SOCKET, SO_PASSCRED, &enable, sizeof(enable) );
|
|
}
|
|
#endif
|
|
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, FD_CLOEXEC );
|
|
return s;
|
|
}
|
|
close( s );
|
|
}
|
|
server_connect_error( serverdir );
|
|
}
|
|
|
|
|
|
#ifdef __APPLE__
|
|
#include <mach/mach.h>
|
|
#include <mach/mach_error.h>
|
|
#include <servers/bootstrap.h>
|
|
|
|
/* 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__ */
|
|
|
|
|
|
/***********************************************************************
|
|
* get_unix_tid
|
|
*
|
|
* Retrieve the Unix tid to use on the server side for the current thread.
|
|
*/
|
|
static int get_unix_tid(void)
|
|
{
|
|
int ret = -1;
|
|
#ifdef HAVE_PTHREAD_GETTHREADID_NP
|
|
ret = pthread_getthreadid_np();
|
|
#elif defined(linux)
|
|
ret = syscall( __NR_gettid );
|
|
#elif defined(__sun)
|
|
ret = pthread_self();
|
|
#elif defined(__APPLE__)
|
|
ret = mach_thread_self();
|
|
mach_port_deallocate(mach_task_self(), ret);
|
|
#elif defined(__NetBSD__)
|
|
ret = _lwp_self();
|
|
#elif defined(__FreeBSD__)
|
|
long lwpid;
|
|
thr_self( &lwpid );
|
|
ret = lwpid;
|
|
#elif defined(__DragonFly__)
|
|
ret = lwp_gettid();
|
|
#endif
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* server_init_process
|
|
*
|
|
* Start the server and create the initial socket pair.
|
|
*/
|
|
void server_init_process(void)
|
|
{
|
|
obj_handle_t version;
|
|
const char *env_socket = getenv( "WINESERVERSOCKET" );
|
|
|
|
server_pid = -1;
|
|
if (env_socket)
|
|
{
|
|
fd_socket = atoi( env_socket );
|
|
if (fcntl( fd_socket, F_SETFD, FD_CLOEXEC ) == -1)
|
|
fatal_perror( "Bad server socket %d", fd_socket );
|
|
unsetenv( "WINESERVERSOCKET" );
|
|
}
|
|
else
|
|
{
|
|
const char *arch = getenv( "WINEARCH" );
|
|
|
|
if (arch && strcmp( arch, "win32" ) && strcmp( arch, "win64" ))
|
|
fatal_error( "WINEARCH set to invalid value '%s', it must be either win32 or win64.\n", arch );
|
|
|
|
fd_socket = server_connect();
|
|
}
|
|
|
|
/* 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_sigmask( SIG_BLOCK, &server_block_set, NULL );
|
|
|
|
/* receive the first thread request fd on the main socket */
|
|
ntdll_get_thread_data()->request_fd = receive_fd( &version );
|
|
|
|
#ifdef SO_PASSCRED
|
|
/* now that we hopefully received the server_pid, disable SO_PASSCRED */
|
|
{
|
|
int enable = 0;
|
|
setsockopt( fd_socket, SOL_SOCKET, SO_PASSCRED, &enable, sizeof(enable) );
|
|
}
|
|
#endif
|
|
|
|
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" );
|
|
#ifdef __APPLE__
|
|
send_server_task_port();
|
|
#endif
|
|
#if defined(__linux__) && defined(HAVE_PRCTL)
|
|
/* work around Ubuntu's ptrace breakage */
|
|
if (server_pid != -1) prctl( 0x59616d61 /* PR_SET_PTRACER */, server_pid );
|
|
#endif
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* server_init_process_done
|
|
*/
|
|
NTSTATUS server_init_process_done(void)
|
|
{
|
|
PEB *peb = NtCurrentTeb()->Peb;
|
|
IMAGE_NT_HEADERS *nt = RtlImageNtHeader( peb->ImageBaseAddress );
|
|
void *entry = (char *)peb->ImageBaseAddress + nt->OptionalHeader.AddressOfEntryPoint;
|
|
NTSTATUS status;
|
|
int suspend;
|
|
|
|
/* 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... */
|
|
signal_init_process();
|
|
|
|
/* Signal the parent process to continue */
|
|
SERVER_START_REQ( init_process_done )
|
|
{
|
|
req->module = wine_server_client_ptr( peb->ImageBaseAddress );
|
|
#ifdef __i386__
|
|
req->ldt_copy = wine_server_client_ptr( &wine_ldt_copy );
|
|
#endif
|
|
req->entry = wine_server_client_ptr( entry );
|
|
req->gui = (nt->OptionalHeader.Subsystem != IMAGE_SUBSYSTEM_WINDOWS_CUI);
|
|
status = wine_server_call( req );
|
|
suspend = reply->suspend;
|
|
}
|
|
SERVER_END_REQ;
|
|
|
|
if (!status) status = signal_start_process( entry, suspend );
|
|
return status;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* server_init_thread
|
|
*
|
|
* Send an init thread request. Return 0 if OK.
|
|
*/
|
|
size_t server_init_thread( void *entry_point )
|
|
{
|
|
static const char *cpu_names[] = { "x86", "x86_64", "PowerPC", "ARM", "ARM64" };
|
|
static const BOOL is_win64 = (sizeof(void *) > sizeof(int));
|
|
const char *arch = getenv( "WINEARCH" );
|
|
int 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 );
|
|
|
|
/* create the server->client communication pipes */
|
|
if (server_pipe( reply_pipe ) == -1) server_protocol_perror( "pipe" );
|
|
if (server_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] );
|
|
|
|
SERVER_START_REQ( init_thread )
|
|
{
|
|
req->unix_pid = getpid();
|
|
req->unix_tid = get_unix_tid();
|
|
req->teb = wine_server_client_ptr( NtCurrentTeb() );
|
|
req->entry = wine_server_client_ptr( entry_point );
|
|
req->reply_fd = reply_pipe[1];
|
|
req->wait_fd = ntdll_get_thread_data()->wait_fd[1];
|
|
req->debug_level = (TRACE_ON(server) != 0);
|
|
req->cpu = client_cpu;
|
|
ret = wine_server_call( req );
|
|
NtCurrentTeb()->ClientId.UniqueProcess = ULongToHandle(reply->pid);
|
|
NtCurrentTeb()->ClientId.UniqueThread = ULongToHandle(reply->tid);
|
|
info_size = reply->info_size;
|
|
server_start_time = reply->server_start;
|
|
server_cpus = reply->all_cpus;
|
|
}
|
|
SERVER_END_REQ;
|
|
|
|
is_wow64 = !is_win64 && (server_cpus & ((1 << CPU_x86_64) | (1 << CPU_ARM64))) != 0;
|
|
ntdll_get_thread_data()->wow64_redir = is_wow64;
|
|
|
|
switch (ret)
|
|
{
|
|
case STATUS_SUCCESS:
|
|
if (arch)
|
|
{
|
|
if (!strcmp( arch, "win32" ) && (is_win64 || is_wow64))
|
|
fatal_error( "WINEARCH set to win32 but '%s' is a 64-bit installation.\n",
|
|
wine_get_config_dir() );
|
|
if (!strcmp( arch, "win64" ) && !is_win64 && !is_wow64)
|
|
fatal_error( "WINEARCH set to win64 but '%s' is a 32-bit installation.\n",
|
|
wine_get_config_dir() );
|
|
}
|
|
return info_size;
|
|
case STATUS_INVALID_IMAGE_WIN_64:
|
|
fatal_error( "'%s' is a 32-bit installation, it cannot support 64-bit applications.\n",
|
|
wine_get_config_dir() );
|
|
case STATUS_NOT_SUPPORTED:
|
|
fatal_error( "'%s' is a 64-bit installation, it cannot be used with a 32-bit wineserver.\n",
|
|
wine_get_config_dir() );
|
|
case STATUS_INVALID_IMAGE_FORMAT:
|
|
fatal_error( "wineserver doesn't support the %s architecture\n", cpu_names[client_cpu] );
|
|
default:
|
|
server_protocol_error( "init_thread failed with status %x\n", ret );
|
|
}
|
|
}
|