mirror of
git://source.winehq.org/git/wine.git
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928 lines
30 KiB
C
928 lines
30 KiB
C
/*
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* Server-side socket management
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*
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* Copyright (C) 1999 Marcus Meissner, Ove Kåven
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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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* FIXME: we use read|write access in all cases. Shouldn't we depend that
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* on the access of the current handle?
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*/
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#include "config.h"
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#include <assert.h>
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#include <fcntl.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 <stdlib.h>
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#include <errno.h>
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#ifdef HAVE_SYS_ERRNO_H
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# include <sys/errno.h>
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#endif
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#include <sys/time.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_IOCTL_H
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#include <sys/ioctl.h>
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#endif
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#ifdef HAVE_SYS_FILIO_H
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# include <sys/filio.h>
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#endif
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#include <time.h>
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#include <unistd.h>
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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 "winternl.h"
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#include "process.h"
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#include "file.h"
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#include "handle.h"
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#include "thread.h"
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#include "request.h"
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#include "user.h"
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/* To avoid conflicts with the Unix socket headers. Plus we only need a few
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* macros anyway.
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*/
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#define USE_WS_PREFIX
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#include "winsock2.h"
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struct sock
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{
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struct object obj; /* object header */
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struct fd *fd; /* socket file descriptor */
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unsigned int state; /* status bits */
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unsigned int mask; /* event mask */
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unsigned int hmask; /* held (blocked) events */
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unsigned int pmask; /* pending events */
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unsigned int flags; /* socket flags */
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int polling; /* is socket being polled? */
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unsigned short type; /* socket type */
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unsigned short family; /* socket family */
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struct event *event; /* event object */
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user_handle_t window; /* window to send the message to */
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unsigned int message; /* message to send */
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obj_handle_t wparam; /* message wparam (socket handle) */
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int errors[FD_MAX_EVENTS]; /* event errors */
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struct sock *deferred; /* socket that waits for a deferred accept */
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struct list read_q; /* queue for asynchronous reads */
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struct list write_q; /* queue for asynchronous writes */
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};
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static void sock_dump( struct object *obj, int verbose );
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static int sock_signaled( struct object *obj, struct thread *thread );
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static struct fd *sock_get_fd( struct object *obj );
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static unsigned int sock_map_access( struct object *obj, unsigned int access );
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static void sock_destroy( struct object *obj );
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static int sock_get_poll_events( struct fd *fd );
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static void sock_poll_event( struct fd *fd, int event );
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static enum server_fd_type sock_get_info( struct fd *fd, int *flags );
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static void sock_queue_async( struct fd *fd, const async_data_t *data, int type, int count );
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static void sock_cancel_async( struct fd *fd );
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static int sock_get_error( int err );
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static void sock_set_error(void);
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static const struct object_ops sock_ops =
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{
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sizeof(struct sock), /* size */
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sock_dump, /* dump */
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add_queue, /* add_queue */
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remove_queue, /* remove_queue */
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sock_signaled, /* signaled */
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no_satisfied, /* satisfied */
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no_signal, /* signal */
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sock_get_fd, /* get_fd */
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sock_map_access, /* map_access */
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no_lookup_name, /* lookup_name */
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no_open_file, /* open_file */
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fd_close_handle, /* close_handle */
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sock_destroy /* destroy */
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};
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static const struct fd_ops sock_fd_ops =
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{
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sock_get_poll_events, /* get_poll_events */
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sock_poll_event, /* poll_event */
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no_flush, /* flush */
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sock_get_info, /* get_file_info */
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sock_queue_async, /* queue_async */
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sock_cancel_async /* cancel_async */
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};
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/* Permutation of 0..FD_MAX_EVENTS - 1 representing the order in which
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* we post messages if there are multiple events. Used to send
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* messages. The problem is if there is both a FD_CONNECT event and,
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* say, an FD_READ event available on the same socket, we want to
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* notify the app of the connect event first. Otherwise it may
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* discard the read event because it thinks it hasn't connected yet.
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*/
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static const int event_bitorder[FD_MAX_EVENTS] =
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{
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FD_CONNECT_BIT,
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FD_ACCEPT_BIT,
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FD_OOB_BIT,
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FD_WRITE_BIT,
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FD_READ_BIT,
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FD_CLOSE_BIT,
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6, 7, 8, 9 /* leftovers */
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};
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/* Flags that make sense only for SOCK_STREAM sockets */
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#define STREAM_FLAG_MASK ((unsigned int) (FD_CONNECT | FD_ACCEPT | FD_WINE_LISTENING | FD_WINE_CONNECTED))
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typedef enum {
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SOCK_SHUTDOWN_ERROR = -1,
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SOCK_SHUTDOWN_EOF = 0,
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SOCK_SHUTDOWN_POLLHUP = 1
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} sock_shutdown_t;
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static sock_shutdown_t sock_shutdown_type = SOCK_SHUTDOWN_ERROR;
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static sock_shutdown_t sock_check_pollhup(void)
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{
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sock_shutdown_t ret = SOCK_SHUTDOWN_ERROR;
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int fd[2], n;
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struct pollfd pfd;
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char dummy;
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if ( socketpair( AF_UNIX, SOCK_STREAM, 0, fd ) ) goto out;
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if ( shutdown( fd[0], 1 ) ) goto out;
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pfd.fd = fd[1];
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pfd.events = POLLIN;
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pfd.revents = 0;
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n = poll( &pfd, 1, 0 );
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if ( n != 1 ) goto out; /* error or timeout */
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if ( pfd.revents & POLLHUP )
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ret = SOCK_SHUTDOWN_POLLHUP;
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else if ( pfd.revents & POLLIN &&
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read( fd[1], &dummy, 1 ) == 0 )
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ret = SOCK_SHUTDOWN_EOF;
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out:
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close( fd[0] );
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close( fd[1] );
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return ret;
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}
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void sock_init(void)
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{
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sock_shutdown_type = sock_check_pollhup();
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switch ( sock_shutdown_type )
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{
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case SOCK_SHUTDOWN_EOF:
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if (debug_level) fprintf( stderr, "sock_init: shutdown() causes EOF\n" );
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break;
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case SOCK_SHUTDOWN_POLLHUP:
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if (debug_level) fprintf( stderr, "sock_init: shutdown() causes POLLHUP\n" );
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break;
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default:
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fprintf( stderr, "sock_init: ERROR in sock_check_pollhup()\n" );
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sock_shutdown_type = SOCK_SHUTDOWN_EOF;
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}
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}
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static int sock_reselect( struct sock *sock )
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{
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int ev = sock_get_poll_events( sock->fd );
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if (debug_level)
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fprintf(stderr,"sock_reselect(%p): new mask %x\n", sock, ev);
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if (!sock->polling) /* FIXME: should find a better way to do this */
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{
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/* previously unconnected socket, is this reselect supposed to connect it? */
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if (!(sock->state & ~FD_WINE_NONBLOCKING)) return 0;
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/* ok, it is, attach it to the wineserver's main poll loop */
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sock->polling = 1;
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}
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/* update condition mask */
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set_fd_events( sock->fd, ev );
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return ev;
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}
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/* After POLLHUP is received, the socket will no longer be in the main select loop.
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This function is used to signal pending events nevertheless */
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static void sock_try_event( struct sock *sock, int event )
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{
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event = check_fd_events( sock->fd, event );
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if (event)
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{
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if ( debug_level ) fprintf( stderr, "sock_try_event: %x\n", event );
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sock_poll_event( sock->fd, event );
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}
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}
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/* wake anybody waiting on the socket event or send the associated message */
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static void sock_wake_up( struct sock *sock, int pollev )
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{
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unsigned int events = sock->pmask & sock->mask;
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int i;
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int async_active = 0;
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if ( sock->flags & WSA_FLAG_OVERLAPPED )
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{
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if ( pollev & (POLLIN|POLLPRI) && !list_empty( &sock->read_q ))
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{
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if (debug_level) fprintf( stderr, "activating read queue for socket %p\n", sock );
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async_terminate_head( &sock->read_q, STATUS_ALERTED );
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async_active = 1;
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}
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if ( pollev & POLLOUT && !list_empty( &sock->write_q ))
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{
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if (debug_level) fprintf( stderr, "activating write queue for socket %p\n", sock );
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async_terminate_head( &sock->write_q, STATUS_ALERTED );
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async_active = 1;
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}
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}
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/* Do not signal events if there are still pending asynchronous IO requests */
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/* We need this to delay FD_CLOSE events until all pending overlapped requests are processed */
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if ( !events || async_active ) return;
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if (sock->event)
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{
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if (debug_level) fprintf(stderr, "signalling events %x ptr %p\n", events, sock->event );
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set_event( sock->event );
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}
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if (sock->window)
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{
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if (debug_level) fprintf(stderr, "signalling events %x win %p\n", events, sock->window );
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for (i = 0; i < FD_MAX_EVENTS; i++)
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{
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int event = event_bitorder[i];
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if (sock->pmask & (1 << event))
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{
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unsigned int lparam = (1 << event) | (sock->errors[event] << 16);
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post_message( sock->window, sock->message, (unsigned long)sock->wparam, lparam );
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}
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}
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sock->pmask = 0;
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sock_reselect( sock );
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}
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}
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static inline int sock_error( struct fd *fd )
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{
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unsigned int optval = 0, optlen;
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optlen = sizeof(optval);
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getsockopt( get_unix_fd(fd), SOL_SOCKET, SO_ERROR, (void *) &optval, &optlen);
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return optval ? sock_get_error(optval) : 0;
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}
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static void sock_poll_event( struct fd *fd, int event )
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{
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struct sock *sock = get_fd_user( fd );
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int hangup_seen = 0;
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assert( sock->obj.ops == &sock_ops );
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if (debug_level)
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fprintf(stderr, "socket %p select event: %x\n", sock, event);
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if (sock->state & FD_CONNECT)
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{
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/* connecting */
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if (event & POLLOUT)
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{
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/* we got connected */
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sock->state |= FD_WINE_CONNECTED|FD_READ|FD_WRITE;
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sock->state &= ~FD_CONNECT;
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sock->pmask |= FD_CONNECT;
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sock->errors[FD_CONNECT_BIT] = 0;
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if (debug_level)
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fprintf(stderr, "socket %p connection success\n", sock);
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}
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else if (event & (POLLERR|POLLHUP))
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{
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/* we didn't get connected? */
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sock->state &= ~FD_CONNECT;
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sock->pmask |= FD_CONNECT;
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sock->errors[FD_CONNECT_BIT] = sock_error( fd );
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if (debug_level)
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fprintf(stderr, "socket %p connection failure\n", sock);
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}
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}
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else if (sock->state & FD_WINE_LISTENING)
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{
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/* listening */
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if (event & POLLIN)
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{
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/* incoming connection */
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sock->pmask |= FD_ACCEPT;
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sock->errors[FD_ACCEPT_BIT] = 0;
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sock->hmask |= FD_ACCEPT;
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}
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else if (event & (POLLERR|POLLHUP))
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{
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/* failed incoming connection? */
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sock->pmask |= FD_ACCEPT;
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sock->errors[FD_ACCEPT_BIT] = sock_error( fd );
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sock->hmask |= FD_ACCEPT;
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}
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}
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else
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{
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/* normal data flow */
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if ( sock->type == SOCK_STREAM && ( event & POLLIN ) )
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{
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char dummy;
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int nr;
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/* Linux 2.4 doesn't report POLLHUP if only one side of the socket
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* has been closed, so we need to check for it explicitly here */
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nr = recv( get_unix_fd( fd ), &dummy, 1, MSG_PEEK );
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if ( nr > 0 )
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{
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/* incoming data */
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sock->pmask |= FD_READ;
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sock->hmask |= (FD_READ|FD_CLOSE);
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sock->errors[FD_READ_BIT] = 0;
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if (debug_level)
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fprintf(stderr, "socket %p is readable\n", sock );
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}
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else if ( nr == 0 )
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hangup_seen = 1;
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else
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{
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/* EAGAIN can happen if an async recv() falls between the server's poll()
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call and the invocation of this routine */
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if ( errno == EAGAIN )
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event &= ~POLLIN;
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else
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{
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if ( debug_level )
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fprintf( stderr, "recv error on socket %p: %d\n", sock, errno );
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event = POLLERR;
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}
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}
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}
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else if ( sock_shutdown_type == SOCK_SHUTDOWN_POLLHUP && (event & POLLHUP) )
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{
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hangup_seen = 1;
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}
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else if ( event & POLLIN ) /* POLLIN for non-stream socket */
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{
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sock->pmask |= FD_READ;
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sock->hmask |= (FD_READ|FD_CLOSE);
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sock->errors[FD_READ_BIT] = 0;
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if (debug_level)
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fprintf(stderr, "socket %p is readable\n", sock );
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}
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if (event & POLLOUT)
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{
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sock->pmask |= FD_WRITE;
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sock->hmask |= FD_WRITE;
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sock->errors[FD_WRITE_BIT] = 0;
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if (debug_level)
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fprintf(stderr, "socket %p is writable\n", sock);
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}
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if (event & POLLPRI)
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{
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sock->pmask |= FD_OOB;
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sock->hmask |= FD_OOB;
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sock->errors[FD_OOB_BIT] = 0;
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if (debug_level)
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fprintf(stderr, "socket %p got OOB data\n", sock);
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}
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/* According to WS2 specs, FD_CLOSE is only delivered when there is
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no more data to be read (i.e. hangup_seen = 1) */
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else if ( hangup_seen && (sock->state & (FD_READ|FD_WRITE) ))
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{
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sock->errors[FD_CLOSE_BIT] = sock_error( fd );
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if ( (event & POLLERR) || ( sock_shutdown_type == SOCK_SHUTDOWN_EOF && (event & POLLHUP) ))
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sock->state &= ~FD_WRITE;
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sock->pmask |= FD_CLOSE;
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sock->hmask |= FD_CLOSE;
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if (debug_level)
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fprintf(stderr, "socket %p aborted by error %d, event: %x - removing from select loop\n",
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sock, sock->errors[FD_CLOSE_BIT], event);
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}
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}
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if ( sock->pmask & FD_CLOSE || event & (POLLERR|POLLHUP) )
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{
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if ( debug_level )
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fprintf( stderr, "removing socket %p from select loop\n", sock );
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set_fd_events( sock->fd, -1 );
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}
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else
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sock_reselect( sock );
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/* wake up anyone waiting for whatever just happened */
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if ( sock->pmask & sock->mask || sock->flags & WSA_FLAG_OVERLAPPED ) sock_wake_up( sock, event );
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/* if anyone is stupid enough to wait on the socket object itself,
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* maybe we should wake them up too, just in case? */
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wake_up( &sock->obj, 0 );
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}
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static void sock_dump( struct object *obj, int verbose )
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{
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struct sock *sock = (struct sock *)obj;
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assert( obj->ops == &sock_ops );
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printf( "Socket fd=%p, state=%x, mask=%x, pending=%x, held=%x\n",
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sock->fd, sock->state,
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sock->mask, sock->pmask, sock->hmask );
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}
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static int sock_signaled( struct object *obj, struct thread *thread )
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{
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struct sock *sock = (struct sock *)obj;
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assert( obj->ops == &sock_ops );
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return check_fd_events( sock->fd, sock_get_poll_events( sock->fd ) ) != 0;
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}
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static unsigned int sock_map_access( struct object *obj, unsigned int access )
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{
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if (access & GENERIC_READ) access |= FILE_GENERIC_READ;
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if (access & GENERIC_WRITE) access |= FILE_GENERIC_WRITE;
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if (access & GENERIC_EXECUTE) access |= FILE_GENERIC_EXECUTE;
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if (access & GENERIC_ALL) access |= FILE_ALL_ACCESS;
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return access & ~(GENERIC_READ | GENERIC_WRITE | GENERIC_EXECUTE | GENERIC_ALL);
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}
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|
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static int sock_get_poll_events( struct fd *fd )
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|
{
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struct sock *sock = get_fd_user( fd );
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unsigned int mask = sock->mask & sock->state & ~sock->hmask;
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int ev = 0;
|
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|
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assert( sock->obj.ops == &sock_ops );
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|
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if (sock->state & FD_CONNECT)
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/* connecting, wait for writable */
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return POLLOUT;
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if (sock->state & FD_WINE_LISTENING)
|
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/* listening, wait for readable */
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return (sock->hmask & FD_ACCEPT) ? 0 : POLLIN;
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|
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if (mask & (FD_READ) || (sock->flags & WSA_FLAG_OVERLAPPED && !list_empty( &sock->read_q )))
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ev |= POLLIN | POLLPRI;
|
|
if (mask & FD_WRITE || (sock->flags & WSA_FLAG_OVERLAPPED && !list_empty( &sock->write_q )))
|
|
ev |= POLLOUT;
|
|
/* We use POLLIN with 0 bytes recv() as FD_CLOSE indication for stream sockets. */
|
|
if ( sock->type == SOCK_STREAM && ( sock->mask & ~sock->hmask & FD_CLOSE) )
|
|
ev |= POLLIN;
|
|
|
|
return ev;
|
|
}
|
|
|
|
static enum server_fd_type sock_get_info( struct fd *fd, int *flags )
|
|
{
|
|
struct sock *sock = get_fd_user( fd );
|
|
assert( sock->obj.ops == &sock_ops );
|
|
|
|
*flags = FD_FLAG_AVAILABLE;
|
|
if (sock->flags & WSA_FLAG_OVERLAPPED) *flags |= FD_FLAG_OVERLAPPED;
|
|
if ( sock->type != SOCK_STREAM || sock->state & FD_WINE_CONNECTED )
|
|
{
|
|
if ( !(sock->state & FD_READ ) ) *flags |= FD_FLAG_RECV_SHUTDOWN;
|
|
if ( !(sock->state & FD_WRITE ) ) *flags |= FD_FLAG_SEND_SHUTDOWN;
|
|
}
|
|
return FD_TYPE_SOCKET;
|
|
}
|
|
|
|
static void sock_queue_async( struct fd *fd, const async_data_t *data, int type, int count )
|
|
{
|
|
struct sock *sock = get_fd_user( fd );
|
|
struct list *queue;
|
|
int pollev;
|
|
|
|
assert( sock->obj.ops == &sock_ops );
|
|
|
|
if ( !(sock->flags & WSA_FLAG_OVERLAPPED) )
|
|
{
|
|
set_error( STATUS_INVALID_HANDLE );
|
|
return;
|
|
}
|
|
|
|
switch (type)
|
|
{
|
|
case ASYNC_TYPE_READ:
|
|
queue = &sock->read_q;
|
|
sock->hmask &= ~FD_CLOSE;
|
|
break;
|
|
case ASYNC_TYPE_WRITE:
|
|
queue = &sock->write_q;
|
|
break;
|
|
default:
|
|
set_error( STATUS_INVALID_PARAMETER );
|
|
return;
|
|
}
|
|
|
|
if ( ( !( sock->state & FD_READ ) && type == ASYNC_TYPE_READ ) ||
|
|
( !( sock->state & FD_WRITE ) && type == ASYNC_TYPE_WRITE ) )
|
|
{
|
|
set_error( STATUS_PIPE_DISCONNECTED );
|
|
}
|
|
else
|
|
{
|
|
if (!create_async( current, NULL, queue, data )) return;
|
|
set_error( STATUS_PENDING );
|
|
}
|
|
|
|
pollev = sock_reselect( sock );
|
|
if ( pollev ) sock_try_event( sock, pollev );
|
|
}
|
|
|
|
static void sock_cancel_async( struct fd *fd )
|
|
{
|
|
struct sock *sock = get_fd_user( fd );
|
|
assert( sock->obj.ops == &sock_ops );
|
|
|
|
async_terminate_queue( &sock->read_q, STATUS_CANCELLED );
|
|
async_terminate_queue( &sock->write_q, STATUS_CANCELLED );
|
|
}
|
|
|
|
static struct fd *sock_get_fd( struct object *obj )
|
|
{
|
|
struct sock *sock = (struct sock *)obj;
|
|
return (struct fd *)grab_object( sock->fd );
|
|
}
|
|
|
|
static void sock_destroy( struct object *obj )
|
|
{
|
|
struct sock *sock = (struct sock *)obj;
|
|
assert( obj->ops == &sock_ops );
|
|
|
|
/* FIXME: special socket shutdown stuff? */
|
|
|
|
if ( sock->deferred )
|
|
release_object( sock->deferred );
|
|
|
|
if ( sock->flags & WSA_FLAG_OVERLAPPED )
|
|
{
|
|
async_terminate_queue( &sock->read_q, STATUS_CANCELLED );
|
|
async_terminate_queue( &sock->write_q, STATUS_CANCELLED );
|
|
}
|
|
if (sock->event) release_object( sock->event );
|
|
if (sock->fd)
|
|
{
|
|
/* shut the socket down to force pending poll() calls in the client to return */
|
|
shutdown( get_unix_fd(sock->fd), SHUT_RDWR );
|
|
release_object( sock->fd );
|
|
}
|
|
}
|
|
|
|
/* create a new and unconnected socket */
|
|
static struct object *create_socket( int family, int type, int protocol, unsigned int flags )
|
|
{
|
|
struct sock *sock;
|
|
int sockfd;
|
|
|
|
sockfd = socket( family, type, protocol );
|
|
if (debug_level)
|
|
fprintf(stderr,"socket(%d,%d,%d)=%d\n",family,type,protocol,sockfd);
|
|
if (sockfd == -1)
|
|
{
|
|
sock_set_error();
|
|
return NULL;
|
|
}
|
|
fcntl(sockfd, F_SETFL, O_NONBLOCK); /* make socket nonblocking */
|
|
if (!(sock = alloc_object( &sock_ops )))
|
|
{
|
|
close( sockfd );
|
|
return NULL;
|
|
}
|
|
sock->state = (type != SOCK_STREAM) ? (FD_READ|FD_WRITE) : 0;
|
|
sock->mask = 0;
|
|
sock->hmask = 0;
|
|
sock->pmask = 0;
|
|
sock->polling = 0;
|
|
sock->flags = flags;
|
|
sock->type = type;
|
|
sock->family = family;
|
|
sock->event = NULL;
|
|
sock->window = 0;
|
|
sock->message = 0;
|
|
sock->wparam = 0;
|
|
sock->deferred = NULL;
|
|
if (!(sock->fd = create_anonymous_fd( &sock_fd_ops, sockfd, &sock->obj )))
|
|
{
|
|
release_object( sock );
|
|
return NULL;
|
|
}
|
|
list_init( &sock->read_q );
|
|
list_init( &sock->write_q );
|
|
sock_reselect( sock );
|
|
clear_error();
|
|
return &sock->obj;
|
|
}
|
|
|
|
/* accept a socket (creates a new fd) */
|
|
static struct sock *accept_socket( obj_handle_t handle )
|
|
{
|
|
struct sock *acceptsock;
|
|
struct sock *sock;
|
|
int acceptfd;
|
|
struct sockaddr saddr;
|
|
|
|
sock = (struct sock *)get_handle_obj( current->process, handle, FILE_READ_DATA, &sock_ops );
|
|
if (!sock)
|
|
return NULL;
|
|
|
|
if ( sock->deferred )
|
|
{
|
|
acceptsock = sock->deferred;
|
|
sock->deferred = NULL;
|
|
}
|
|
else
|
|
{
|
|
|
|
/* Try to accept(2). We can't be safe that this an already connected socket
|
|
* or that accept() is allowed on it. In those cases we will get -1/errno
|
|
* return.
|
|
*/
|
|
unsigned int slen = sizeof(saddr);
|
|
acceptfd = accept( get_unix_fd(sock->fd), &saddr, &slen);
|
|
if (acceptfd==-1)
|
|
{
|
|
sock_set_error();
|
|
release_object( sock );
|
|
return NULL;
|
|
}
|
|
if (!(acceptsock = alloc_object( &sock_ops )))
|
|
{
|
|
close( acceptfd );
|
|
release_object( sock );
|
|
return NULL;
|
|
}
|
|
|
|
/* newly created socket gets the same properties of the listening socket */
|
|
fcntl(acceptfd, F_SETFL, O_NONBLOCK); /* make socket nonblocking */
|
|
acceptsock->state = FD_WINE_CONNECTED|FD_READ|FD_WRITE;
|
|
if (sock->state & FD_WINE_NONBLOCKING)
|
|
acceptsock->state |= FD_WINE_NONBLOCKING;
|
|
acceptsock->mask = sock->mask;
|
|
acceptsock->hmask = 0;
|
|
acceptsock->pmask = 0;
|
|
acceptsock->polling = 0;
|
|
acceptsock->type = sock->type;
|
|
acceptsock->family = sock->family;
|
|
acceptsock->event = NULL;
|
|
acceptsock->window = sock->window;
|
|
acceptsock->message = sock->message;
|
|
acceptsock->wparam = 0;
|
|
if (sock->event) acceptsock->event = (struct event *)grab_object( sock->event );
|
|
acceptsock->flags = sock->flags;
|
|
acceptsock->deferred = NULL;
|
|
if (!(acceptsock->fd = create_anonymous_fd( &sock_fd_ops, acceptfd, &acceptsock->obj )))
|
|
{
|
|
release_object( acceptsock );
|
|
release_object( sock );
|
|
return NULL;
|
|
}
|
|
list_init( &acceptsock->read_q );
|
|
list_init( &acceptsock->write_q );
|
|
}
|
|
clear_error();
|
|
sock->pmask &= ~FD_ACCEPT;
|
|
sock->hmask &= ~FD_ACCEPT;
|
|
sock_reselect( sock );
|
|
release_object( sock );
|
|
return acceptsock;
|
|
}
|
|
|
|
/* set the last error depending on errno */
|
|
static int sock_get_error( int err )
|
|
{
|
|
switch (err)
|
|
{
|
|
case EINTR: return WSAEINTR;
|
|
case EBADF: return WSAEBADF;
|
|
case EPERM:
|
|
case EACCES: return WSAEACCES;
|
|
case EFAULT: return WSAEFAULT;
|
|
case EINVAL: return WSAEINVAL;
|
|
case EMFILE: return WSAEMFILE;
|
|
case EWOULDBLOCK: return WSAEWOULDBLOCK;
|
|
case EINPROGRESS: return WSAEINPROGRESS;
|
|
case EALREADY: return WSAEALREADY;
|
|
case ENOTSOCK: return WSAENOTSOCK;
|
|
case EDESTADDRREQ: return WSAEDESTADDRREQ;
|
|
case EMSGSIZE: return WSAEMSGSIZE;
|
|
case EPROTOTYPE: return WSAEPROTOTYPE;
|
|
case ENOPROTOOPT: return WSAENOPROTOOPT;
|
|
case EPROTONOSUPPORT: return WSAEPROTONOSUPPORT;
|
|
case ESOCKTNOSUPPORT: return WSAESOCKTNOSUPPORT;
|
|
case EOPNOTSUPP: return WSAEOPNOTSUPP;
|
|
case EPFNOSUPPORT: return WSAEPFNOSUPPORT;
|
|
case EAFNOSUPPORT: return WSAEAFNOSUPPORT;
|
|
case EADDRINUSE: return WSAEADDRINUSE;
|
|
case EADDRNOTAVAIL: return WSAEADDRNOTAVAIL;
|
|
case ENETDOWN: return WSAENETDOWN;
|
|
case ENETUNREACH: return WSAENETUNREACH;
|
|
case ENETRESET: return WSAENETRESET;
|
|
case ECONNABORTED: return WSAECONNABORTED;
|
|
case EPIPE:
|
|
case ECONNRESET: return WSAECONNRESET;
|
|
case ENOBUFS: return WSAENOBUFS;
|
|
case EISCONN: return WSAEISCONN;
|
|
case ENOTCONN: return WSAENOTCONN;
|
|
case ESHUTDOWN: return WSAESHUTDOWN;
|
|
case ETOOMANYREFS: return WSAETOOMANYREFS;
|
|
case ETIMEDOUT: return WSAETIMEDOUT;
|
|
case ECONNREFUSED: return WSAECONNREFUSED;
|
|
case ELOOP: return WSAELOOP;
|
|
case ENAMETOOLONG: return WSAENAMETOOLONG;
|
|
case EHOSTDOWN: return WSAEHOSTDOWN;
|
|
case EHOSTUNREACH: return WSAEHOSTUNREACH;
|
|
case ENOTEMPTY: return WSAENOTEMPTY;
|
|
#ifdef EPROCLIM
|
|
case EPROCLIM: return WSAEPROCLIM;
|
|
#endif
|
|
#ifdef EUSERS
|
|
case EUSERS: return WSAEUSERS;
|
|
#endif
|
|
#ifdef EDQUOT
|
|
case EDQUOT: return WSAEDQUOT;
|
|
#endif
|
|
#ifdef ESTALE
|
|
case ESTALE: return WSAESTALE;
|
|
#endif
|
|
#ifdef EREMOTE
|
|
case EREMOTE: return WSAEREMOTE;
|
|
#endif
|
|
default: errno=err; perror("sock_set_error"); return WSAEFAULT;
|
|
}
|
|
}
|
|
|
|
/* set the last error depending on errno */
|
|
static void sock_set_error(void)
|
|
{
|
|
set_error( sock_get_error( errno ) );
|
|
}
|
|
|
|
/* create a socket */
|
|
DECL_HANDLER(create_socket)
|
|
{
|
|
struct object *obj;
|
|
|
|
reply->handle = 0;
|
|
if ((obj = create_socket( req->family, req->type, req->protocol, req->flags )) != NULL)
|
|
{
|
|
reply->handle = alloc_handle( current->process, obj, req->access, req->attributes );
|
|
release_object( obj );
|
|
}
|
|
}
|
|
|
|
/* accept a socket */
|
|
DECL_HANDLER(accept_socket)
|
|
{
|
|
struct sock *sock;
|
|
|
|
reply->handle = 0;
|
|
if ((sock = accept_socket( req->lhandle )) != NULL)
|
|
{
|
|
reply->handle = alloc_handle( current->process, &sock->obj, req->access, req->attributes );
|
|
sock->wparam = reply->handle; /* wparam for message is the socket handle */
|
|
sock_reselect( sock );
|
|
release_object( &sock->obj );
|
|
}
|
|
}
|
|
|
|
/* set socket event parameters */
|
|
DECL_HANDLER(set_socket_event)
|
|
{
|
|
struct sock *sock;
|
|
struct event *old_event;
|
|
int pollev;
|
|
|
|
if (!(sock = (struct sock *)get_handle_obj( current->process, req->handle,
|
|
FILE_WRITE_ATTRIBUTES, &sock_ops))) return;
|
|
old_event = sock->event;
|
|
sock->mask = req->mask;
|
|
sock->hmask &= ~req->mask; /* re-enable held events */
|
|
sock->event = NULL;
|
|
sock->window = req->window;
|
|
sock->message = req->msg;
|
|
sock->wparam = req->handle; /* wparam is the socket handle */
|
|
if (req->event) sock->event = get_event_obj( current->process, req->event, EVENT_MODIFY_STATE );
|
|
|
|
if (debug_level && sock->event) fprintf(stderr, "event ptr: %p\n", sock->event);
|
|
|
|
pollev = sock_reselect( sock );
|
|
if ( pollev ) sock_try_event( sock, pollev );
|
|
|
|
if (sock->mask)
|
|
sock->state |= FD_WINE_NONBLOCKING;
|
|
|
|
/* if a network event is pending, signal the event object
|
|
it is possible that FD_CONNECT or FD_ACCEPT network events has happened
|
|
before a WSAEventSelect() was done on it.
|
|
(when dealing with Asynchronous socket) */
|
|
if (sock->pmask & sock->mask) sock_wake_up( sock, pollev );
|
|
|
|
if (old_event) release_object( old_event ); /* we're through with it */
|
|
release_object( &sock->obj );
|
|
}
|
|
|
|
/* get socket event parameters */
|
|
DECL_HANDLER(get_socket_event)
|
|
{
|
|
struct sock *sock;
|
|
|
|
sock = (struct sock *)get_handle_obj( current->process, req->handle, FILE_READ_ATTRIBUTES, &sock_ops );
|
|
if (!sock)
|
|
{
|
|
reply->mask = 0;
|
|
reply->pmask = 0;
|
|
reply->state = 0;
|
|
set_error( WSAENOTSOCK );
|
|
return;
|
|
}
|
|
reply->mask = sock->mask;
|
|
reply->pmask = sock->pmask;
|
|
reply->state = sock->state;
|
|
set_reply_data( sock->errors, min( get_reply_max_size(), sizeof(sock->errors) ));
|
|
|
|
if (req->service)
|
|
{
|
|
if (req->c_event)
|
|
{
|
|
struct event *cevent = get_event_obj( current->process, req->c_event,
|
|
EVENT_MODIFY_STATE );
|
|
if (cevent)
|
|
{
|
|
reset_event( cevent );
|
|
release_object( cevent );
|
|
}
|
|
}
|
|
sock->pmask = 0;
|
|
sock_reselect( sock );
|
|
}
|
|
release_object( &sock->obj );
|
|
}
|
|
|
|
/* re-enable pending socket events */
|
|
DECL_HANDLER(enable_socket_event)
|
|
{
|
|
struct sock *sock;
|
|
int pollev;
|
|
|
|
if (!(sock = (struct sock*)get_handle_obj( current->process, req->handle,
|
|
FILE_WRITE_ATTRIBUTES, &sock_ops)))
|
|
return;
|
|
|
|
sock->pmask &= ~req->mask; /* is this safe? */
|
|
sock->hmask &= ~req->mask;
|
|
if ( req->mask & FD_READ )
|
|
sock->hmask &= ~FD_CLOSE;
|
|
sock->state |= req->sstate;
|
|
sock->state &= ~req->cstate;
|
|
if ( sock->type != SOCK_STREAM ) sock->state &= ~STREAM_FLAG_MASK;
|
|
|
|
pollev = sock_reselect( sock );
|
|
if ( pollev ) sock_try_event( sock, pollev );
|
|
|
|
release_object( &sock->obj );
|
|
}
|
|
|
|
DECL_HANDLER(set_socket_deferred)
|
|
{
|
|
struct sock *sock, *acceptsock;
|
|
|
|
sock=(struct sock *)get_handle_obj( current->process, req->handle, FILE_WRITE_ATTRIBUTES, &sock_ops );
|
|
if ( !sock )
|
|
{
|
|
set_error( WSAENOTSOCK );
|
|
return;
|
|
}
|
|
acceptsock = (struct sock *)get_handle_obj( current->process, req->deferred, 0, &sock_ops );
|
|
if ( !acceptsock )
|
|
{
|
|
release_object( sock );
|
|
set_error( WSAENOTSOCK );
|
|
return;
|
|
}
|
|
sock->deferred = acceptsock;
|
|
release_object( sock );
|
|
}
|