2001-07-10 19:16:49 +00:00
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/*
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* Server-side pipe management
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*
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* Copyright (C) 1998 Alexandre Julliard
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2001-08-23 23:29:20 +00:00
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* Copyright (C) 2001 Mike McCormack
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*
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2002-03-09 23:29:33 +00:00
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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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2001-08-23 23:29:20 +00:00
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* TODO:
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2003-05-15 04:22:45 +00:00
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* message mode
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2001-07-10 19:16:49 +00:00
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*/
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#include "config.h"
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2002-04-26 19:05:15 +00:00
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#include "wine/port.h"
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2001-07-10 19:16:49 +00:00
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#include <assert.h>
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#include <fcntl.h>
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/time.h>
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#include <sys/types.h>
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2003-02-11 22:27:13 +00:00
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#ifdef HAVE_SYS_SOCKET_H
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2001-07-10 19:16:49 +00:00
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#include <sys/socket.h>
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2003-02-11 22:27:13 +00:00
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#endif
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2001-07-10 19:16:49 +00:00
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#include <time.h>
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#include <unistd.h>
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#include "winbase.h"
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2003-01-30 00:26:44 +00:00
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#include "file.h"
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2001-07-10 19:16:49 +00:00
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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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2001-08-23 23:29:20 +00:00
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enum pipe_state
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{
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ps_none,
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ps_idle_server,
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ps_wait_open,
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ps_connected_server,
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2003-05-15 04:22:45 +00:00
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ps_wait_disconnect,
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ps_disconnected_server,
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ps_wait_connect
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};
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struct wait_info
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{
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struct thread *thread;
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void *func;
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void *overlapped;
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2001-08-23 23:29:20 +00:00
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};
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2001-07-10 19:16:49 +00:00
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struct named_pipe;
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2003-05-15 04:22:45 +00:00
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struct pipe_server
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{
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struct object obj;
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struct fd *fd;
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enum pipe_state state;
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struct pipe_client *client;
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struct named_pipe *pipe;
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struct pipe_server *next;
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struct pipe_server *prev;
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struct timeout_user *flush_poll;
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struct event *event;
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struct wait_info wait;
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};
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struct pipe_client
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{
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struct object obj;
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struct fd *fd;
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struct pipe_server *server;
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struct wait_info wait;
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};
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struct connect_wait
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{
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struct wait_info wait;
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struct connect_wait *next;
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2001-07-10 19:16:49 +00:00
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};
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struct named_pipe
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{
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struct object obj; /* object header */
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unsigned int pipemode;
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unsigned int maxinstances;
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unsigned int outsize;
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unsigned int insize;
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unsigned int timeout;
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2003-05-15 04:22:45 +00:00
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unsigned int instances;
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struct pipe_server *servers;
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struct connect_wait *connect_waiters;
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2001-07-10 19:16:49 +00:00
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};
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static void named_pipe_dump( struct object *obj, int verbose );
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2003-05-15 04:22:45 +00:00
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static void named_pipe_destroy( struct object *obj );
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2001-07-10 19:16:49 +00:00
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static const struct object_ops named_pipe_ops =
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{
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sizeof(struct named_pipe), /* size */
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named_pipe_dump, /* dump */
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no_add_queue, /* add_queue */
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NULL, /* remove_queue */
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NULL, /* signaled */
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NULL, /* satisfied */
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no_get_fd, /* get_fd */
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named_pipe_destroy /* destroy */
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};
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2003-05-15 04:22:45 +00:00
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/* common to clients and servers */
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static int pipe_end_get_poll_events( struct fd *fd );
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static int pipe_end_get_info( struct fd *fd,
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struct get_file_info_reply *reply, int *flags );
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/* server end functions */
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static void pipe_server_dump( struct object *obj, int verbose );
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static struct fd *pipe_server_get_fd( struct object *obj );
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static void pipe_server_destroy( struct object *obj);
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static int pipe_server_flush( struct fd *fd, struct event **event );
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static const struct object_ops pipe_server_ops =
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{
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sizeof(struct pipe_server), /* size */
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pipe_server_dump, /* dump */
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default_fd_add_queue, /* add_queue */
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default_fd_remove_queue, /* remove_queue */
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default_fd_signaled, /* signaled */
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no_satisfied, /* satisfied */
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pipe_server_get_fd, /* get_fd */
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pipe_server_destroy /* destroy */
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};
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static const struct fd_ops pipe_server_fd_ops =
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{
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pipe_end_get_poll_events, /* get_poll_events */
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default_poll_event, /* poll_event */
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pipe_server_flush, /* flush */
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pipe_end_get_info, /* get_file_info */
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no_queue_async /* queue_async */
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};
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2003-02-19 00:33:32 +00:00
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2003-05-15 04:22:45 +00:00
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/* client end functions */
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static void pipe_client_dump( struct object *obj, int verbose );
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static struct fd *pipe_client_get_fd( struct object *obj );
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static void pipe_client_destroy( struct object *obj );
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static int pipe_client_flush( struct fd *fd, struct event **event );
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2001-07-10 19:16:49 +00:00
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2003-05-15 04:22:45 +00:00
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static const struct object_ops pipe_client_ops =
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2001-07-10 19:16:49 +00:00
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{
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2003-05-15 04:22:45 +00:00
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sizeof(struct pipe_client), /* size */
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pipe_client_dump, /* dump */
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2003-01-30 00:26:44 +00:00
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default_fd_add_queue, /* add_queue */
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default_fd_remove_queue, /* remove_queue */
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default_fd_signaled, /* signaled */
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2001-07-10 19:16:49 +00:00
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no_satisfied, /* satisfied */
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2003-05-15 04:22:45 +00:00
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pipe_client_get_fd, /* get_fd */
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pipe_client_destroy /* destroy */
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2003-01-30 00:26:44 +00:00
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};
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2003-05-15 04:22:45 +00:00
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static const struct fd_ops pipe_client_fd_ops =
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2003-01-30 00:26:44 +00:00
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{
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2003-05-15 04:22:45 +00:00
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pipe_end_get_poll_events, /* get_poll_events */
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2001-07-10 19:16:49 +00:00
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default_poll_event, /* poll_event */
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2003-05-15 04:22:45 +00:00
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pipe_client_flush, /* flush */
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pipe_end_get_info, /* get_file_info */
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2003-01-30 00:26:44 +00:00
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no_queue_async /* queue_async */
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2001-07-10 19:16:49 +00:00
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};
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static void named_pipe_dump( struct object *obj, int verbose )
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{
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2003-05-15 04:22:45 +00:00
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struct named_pipe *pipe = (struct named_pipe *) obj;
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2001-07-10 19:16:49 +00:00
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assert( obj->ops == &named_pipe_ops );
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fprintf( stderr, "named pipe %p\n" ,pipe);
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}
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2003-05-15 04:22:45 +00:00
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static void pipe_server_dump( struct object *obj, int verbose )
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{
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struct pipe_server *server = (struct pipe_server *) obj;
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assert( obj->ops == &pipe_server_ops );
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fprintf( stderr, "named pipe server %p (state %d)\n",
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server, server->state );
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}
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static void pipe_client_dump( struct object *obj, int verbose )
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2001-07-10 19:16:49 +00:00
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{
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2003-05-15 04:22:45 +00:00
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struct pipe_client *client = (struct pipe_client *) obj;
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assert( obj->ops == &pipe_server_ops );
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fprintf( stderr, "named pipe client %p (server state %d)\n",
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client, client->server->state );
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2001-07-10 19:16:49 +00:00
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}
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static void named_pipe_destroy( struct object *obj)
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{
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2003-05-15 04:22:45 +00:00
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struct named_pipe *pipe = (struct named_pipe *) obj;
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assert( !pipe->servers );
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assert( !pipe->instances );
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2001-07-10 19:16:49 +00:00
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}
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2003-05-15 04:22:45 +00:00
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static void notify_waiter( struct wait_info *wait, unsigned int status )
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2001-11-07 20:14:45 +00:00
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{
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2003-05-15 04:22:45 +00:00
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if( wait->thread && wait->func && wait->overlapped )
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2001-11-07 20:14:45 +00:00
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{
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/* queue a system APC, to notify a waiting thread */
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2003-05-15 04:22:45 +00:00
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thread_queue_apc( wait->thread, NULL, wait->func, APC_ASYNC,
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1, wait->overlapped, (void *)status, NULL );
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2001-11-07 20:14:45 +00:00
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}
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2003-05-15 04:22:45 +00:00
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if( wait->thread ) release_object( wait->thread );
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wait->thread = NULL;
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}
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static void set_waiter( struct wait_info *wait, void *func, void *ov )
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{
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wait->thread = (struct thread *) grab_object( current );
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wait->func = func;
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wait->overlapped = ov;
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2001-11-07 20:14:45 +00:00
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}
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2003-05-15 04:22:45 +00:00
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static void notify_connect_waiters( struct named_pipe *pipe )
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2003-02-19 00:33:32 +00:00
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{
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2003-05-15 04:22:45 +00:00
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struct connect_wait *cw, **x = &pipe->connect_waiters;
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while( *x )
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{
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cw = *x;
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notify_waiter( &cw->wait, STATUS_SUCCESS );
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release_object( pipe );
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*x = cw->next;
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free( cw );
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}
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}
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static void queue_connect_waiter( struct named_pipe *pipe,
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void *func, void *overlapped )
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{
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struct connect_wait *waiter;
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2003-06-18 19:45:22 +00:00
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waiter = mem_alloc( sizeof(*waiter) );
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2003-05-15 04:22:45 +00:00
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if( waiter )
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{
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set_waiter( &waiter->wait, func, overlapped );
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waiter->next = pipe->connect_waiters;
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pipe->connect_waiters = waiter;
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grab_object( pipe );
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}
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}
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static struct fd *pipe_client_get_fd( struct object *obj )
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{
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struct pipe_client *client = (struct pipe_client *) obj;
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if( client->fd )
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return (struct fd *) grab_object( client->fd );
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2003-04-17 02:14:04 +00:00
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set_error( STATUS_PIPE_DISCONNECTED );
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return NULL;
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2003-02-19 00:33:32 +00:00
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}
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2003-05-15 04:22:45 +00:00
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static struct fd *pipe_server_get_fd( struct object *obj )
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{
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struct pipe_server *server = (struct pipe_server *) obj;
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switch(server->state)
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{
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case ps_connected_server:
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case ps_wait_disconnect:
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assert( server->fd );
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return (struct fd *) grab_object( server->fd );
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case ps_wait_open:
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case ps_idle_server:
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set_error( STATUS_PIPE_LISTENING );
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break;
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case ps_disconnected_server:
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case ps_wait_connect:
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set_error( STATUS_PIPE_DISCONNECTED );
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break;
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default:
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assert( 0 );
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}
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return NULL;
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}
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static void notify_empty( struct pipe_server *server )
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{
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if( !server->flush_poll )
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return;
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assert( server->state == ps_connected_server );
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assert( server->event );
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remove_timeout_user( server->flush_poll );
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server->flush_poll = NULL;
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set_event( server->event );
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release_object( server->event );
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server->event = NULL;
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}
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static void do_disconnect( struct pipe_server *server )
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{
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/* we may only have a server fd, if the client disconnected */
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if( server->client )
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{
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assert( server->client->server == server );
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assert( server->client->fd );
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release_object( server->client->fd );
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server->client->fd = NULL;
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}
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assert( server->fd );
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release_object( server->fd );
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server->fd = NULL;
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}
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static void pipe_server_destroy( struct object *obj)
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{
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struct pipe_server *server = (struct pipe_server *)obj;
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assert( obj->ops == &pipe_server_ops );
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if( server->fd )
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{
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notify_empty( server );
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do_disconnect( server );
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}
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if( server->client )
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{
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server->client->server = NULL;
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server->client = NULL;
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}
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notify_waiter( &server->wait, STATUS_HANDLES_CLOSED );
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assert( server->pipe->instances );
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server->pipe->instances--;
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|
|
|
|
|
|
|
/* remove server from pipe's server list */
|
|
|
|
if( server->next ) server->next->prev = server->prev;
|
|
|
|
if( server->prev ) server->prev->next = server->next;
|
|
|
|
else server->pipe->servers = server->next;
|
|
|
|
release_object( server->pipe );
|
|
|
|
}
|
|
|
|
|
|
|
|
static void pipe_client_destroy( struct object *obj)
|
2001-07-10 19:16:49 +00:00
|
|
|
{
|
2003-05-15 04:22:45 +00:00
|
|
|
struct pipe_client *client = (struct pipe_client *)obj;
|
|
|
|
struct pipe_server *server = client->server;
|
2001-07-10 19:16:49 +00:00
|
|
|
|
2003-05-15 04:22:45 +00:00
|
|
|
assert( obj->ops == &pipe_client_ops );
|
2001-07-10 19:16:49 +00:00
|
|
|
|
2003-05-15 04:22:45 +00:00
|
|
|
notify_waiter( &client->wait, STATUS_HANDLES_CLOSED );
|
2001-11-07 20:14:45 +00:00
|
|
|
|
2003-05-15 04:22:45 +00:00
|
|
|
if( server )
|
2001-08-23 23:29:20 +00:00
|
|
|
{
|
2003-05-15 04:22:45 +00:00
|
|
|
notify_empty( server );
|
|
|
|
|
|
|
|
switch( server->state )
|
2001-08-23 23:29:20 +00:00
|
|
|
{
|
|
|
|
case ps_connected_server:
|
2003-05-15 04:22:45 +00:00
|
|
|
/* Don't destroy the server's fd here as we can't
|
|
|
|
do a successful flush without it. */
|
|
|
|
server->state = ps_wait_disconnect;
|
|
|
|
release_object( client->fd );
|
|
|
|
client->fd = NULL;
|
2001-08-23 23:29:20 +00:00
|
|
|
break;
|
2003-05-15 04:22:45 +00:00
|
|
|
case ps_disconnected_server:
|
|
|
|
server->state = ps_wait_connect;
|
2001-08-23 23:29:20 +00:00
|
|
|
break;
|
|
|
|
default:
|
2003-05-15 04:22:45 +00:00
|
|
|
assert( 0 );
|
2001-08-23 23:29:20 +00:00
|
|
|
}
|
2003-05-15 04:22:45 +00:00
|
|
|
assert( server->client );
|
|
|
|
server->client = NULL;
|
|
|
|
client->server = NULL;
|
2001-08-23 23:29:20 +00:00
|
|
|
}
|
2003-05-15 04:22:45 +00:00
|
|
|
assert( !client->fd );
|
2003-02-19 00:33:32 +00:00
|
|
|
}
|
|
|
|
|
2003-05-15 04:22:45 +00:00
|
|
|
static int pipe_end_get_poll_events( struct fd *fd )
|
2003-02-19 00:33:32 +00:00
|
|
|
{
|
|
|
|
return POLLIN | POLLOUT; /* FIXME */
|
2001-07-10 19:16:49 +00:00
|
|
|
}
|
|
|
|
|
2003-05-15 04:22:45 +00:00
|
|
|
static int pipe_data_remaining( struct pipe_server *server )
|
|
|
|
{
|
|
|
|
struct pollfd pfd;
|
|
|
|
int fd;
|
|
|
|
|
|
|
|
assert( server->client );
|
|
|
|
|
|
|
|
fd = get_unix_fd( server->client->fd );
|
|
|
|
if( fd < 0 )
|
|
|
|
return 0;
|
|
|
|
pfd.fd = fd;
|
|
|
|
pfd.events = POLLIN;
|
|
|
|
pfd.revents = 0;
|
|
|
|
|
|
|
|
if( 0 > poll( &pfd, 1, 0 ) )
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
return pfd.revents&POLLIN;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void check_flushed( void *arg )
|
|
|
|
{
|
|
|
|
struct pipe_server *server = (struct pipe_server*) arg;
|
|
|
|
|
|
|
|
assert( server->event );
|
|
|
|
if( pipe_data_remaining( server ) )
|
|
|
|
{
|
|
|
|
struct timeval tv;
|
|
|
|
|
|
|
|
gettimeofday( &tv, 0 );
|
|
|
|
add_timeout( &tv, 100 );
|
|
|
|
server->flush_poll = add_timeout_user( &tv, check_flushed, server );
|
|
|
|
}
|
|
|
|
else
|
|
|
|
notify_empty( server );
|
|
|
|
}
|
|
|
|
|
|
|
|
static int pipe_server_flush( struct fd *fd, struct event **event )
|
|
|
|
{
|
|
|
|
struct pipe_server *server = get_fd_user( fd );
|
|
|
|
|
|
|
|
if( !server )
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
if( server->state != ps_connected_server )
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
/* FIXME: if multiple threads flush the same pipe,
|
|
|
|
maybe should create a list of processes to notify */
|
|
|
|
if( server->flush_poll )
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
if( pipe_data_remaining( server ) )
|
|
|
|
{
|
|
|
|
struct timeval tv;
|
|
|
|
|
|
|
|
/* this kind of sux -
|
|
|
|
there's no unix way to be alerted when a pipe becomes empty */
|
|
|
|
server->event = create_event( NULL, 0, 0, 0 );
|
|
|
|
if( !server->event )
|
|
|
|
return 0;
|
|
|
|
gettimeofday( &tv, 0 );
|
|
|
|
add_timeout( &tv, 100 );
|
|
|
|
server->flush_poll = add_timeout_user( &tv, check_flushed, server );
|
|
|
|
*event = server->event;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int pipe_client_flush( struct fd *fd, struct event **event )
|
|
|
|
{
|
|
|
|
/* FIXME: what do we have to do for this? */
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int pipe_end_get_info( struct fd *fd,
|
|
|
|
struct get_file_info_reply *reply, int *flags )
|
2001-10-05 19:45:45 +00:00
|
|
|
{
|
2001-11-30 18:46:42 +00:00
|
|
|
if (reply)
|
2001-10-05 19:45:45 +00:00
|
|
|
{
|
2001-11-30 18:46:42 +00:00
|
|
|
reply->type = FILE_TYPE_PIPE;
|
|
|
|
reply->attr = 0;
|
|
|
|
reply->access_time = 0;
|
|
|
|
reply->write_time = 0;
|
|
|
|
reply->size_high = 0;
|
|
|
|
reply->size_low = 0;
|
|
|
|
reply->links = 0;
|
|
|
|
reply->index_high = 0;
|
|
|
|
reply->index_low = 0;
|
|
|
|
reply->serial = 0;
|
2001-10-05 19:45:45 +00:00
|
|
|
}
|
2002-01-09 20:30:51 +00:00
|
|
|
*flags = 0;
|
2001-10-05 19:45:45 +00:00
|
|
|
return FD_TYPE_DEFAULT;
|
|
|
|
}
|
|
|
|
|
2001-07-10 19:16:49 +00:00
|
|
|
static struct named_pipe *create_named_pipe( const WCHAR *name, size_t len )
|
|
|
|
{
|
|
|
|
struct named_pipe *pipe;
|
|
|
|
|
2003-05-15 04:22:45 +00:00
|
|
|
pipe = create_named_object( sync_namespace, &named_pipe_ops, name, len );
|
|
|
|
if( pipe )
|
2001-07-10 19:16:49 +00:00
|
|
|
{
|
2003-05-15 04:22:45 +00:00
|
|
|
if( get_error() != STATUS_OBJECT_NAME_COLLISION )
|
2001-07-10 19:16:49 +00:00
|
|
|
{
|
|
|
|
/* initialize it if it didn't already exist */
|
2003-05-15 04:22:45 +00:00
|
|
|
pipe->servers = 0;
|
|
|
|
pipe->instances = 0;
|
|
|
|
pipe->connect_waiters = NULL;
|
2001-07-10 19:16:49 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
return pipe;
|
|
|
|
}
|
|
|
|
|
2003-02-19 00:33:32 +00:00
|
|
|
static struct named_pipe *open_named_pipe( const WCHAR *name, size_t len )
|
|
|
|
{
|
|
|
|
struct object *obj;
|
|
|
|
|
|
|
|
if ((obj = find_object( sync_namespace, name, len )))
|
|
|
|
{
|
|
|
|
if (obj->ops == &named_pipe_ops) return (struct named_pipe *)obj;
|
|
|
|
release_object( obj );
|
|
|
|
set_error( STATUS_OBJECT_TYPE_MISMATCH );
|
|
|
|
}
|
|
|
|
else set_error( STATUS_OBJECT_NAME_NOT_FOUND );
|
|
|
|
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
2003-05-15 04:22:45 +00:00
|
|
|
static struct pipe_server *get_pipe_server_obj( struct process *process,
|
|
|
|
obj_handle_t handle, unsigned int access )
|
2001-07-10 19:16:49 +00:00
|
|
|
{
|
2003-05-15 04:22:45 +00:00
|
|
|
struct object *obj;
|
|
|
|
obj = get_handle_obj( process, handle, access, &pipe_server_ops );
|
|
|
|
return (struct pipe_server *) obj;
|
2001-07-10 19:16:49 +00:00
|
|
|
}
|
|
|
|
|
2003-05-15 04:22:45 +00:00
|
|
|
static struct pipe_server *create_pipe_server( struct named_pipe *pipe )
|
2001-07-10 19:16:49 +00:00
|
|
|
{
|
2003-05-15 04:22:45 +00:00
|
|
|
struct pipe_server *server;
|
2001-07-10 19:16:49 +00:00
|
|
|
|
2003-05-15 04:22:45 +00:00
|
|
|
server = alloc_object( &pipe_server_ops );
|
|
|
|
if( !server )
|
2001-07-10 19:16:49 +00:00
|
|
|
return NULL;
|
|
|
|
|
2003-05-15 04:22:45 +00:00
|
|
|
server->fd = NULL;
|
|
|
|
server->pipe = pipe;
|
|
|
|
server->state = ps_none;
|
|
|
|
server->client = NULL;
|
|
|
|
server->flush_poll = NULL;
|
|
|
|
server->wait.thread = NULL;
|
2001-07-10 19:16:49 +00:00
|
|
|
|
2003-05-15 04:22:45 +00:00
|
|
|
/* add to list of pipe servers */
|
|
|
|
if ((server->next = pipe->servers)) server->next->prev = server;
|
|
|
|
server->prev = NULL;
|
|
|
|
pipe->servers = server;
|
2001-07-10 19:16:49 +00:00
|
|
|
|
2003-05-15 04:22:45 +00:00
|
|
|
grab_object( pipe );
|
2001-07-10 19:16:49 +00:00
|
|
|
|
2003-05-15 04:22:45 +00:00
|
|
|
return server;
|
2001-07-10 19:16:49 +00:00
|
|
|
}
|
|
|
|
|
2003-05-15 04:22:45 +00:00
|
|
|
static struct pipe_client *create_pipe_client( struct pipe_server *server )
|
2001-07-10 19:16:49 +00:00
|
|
|
{
|
2003-05-15 04:22:45 +00:00
|
|
|
struct pipe_client *client;
|
2001-07-10 19:16:49 +00:00
|
|
|
|
2003-05-15 04:22:45 +00:00
|
|
|
client = alloc_object( &pipe_client_ops );
|
|
|
|
if( !client )
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
client->fd = NULL;
|
|
|
|
client->server = server;
|
|
|
|
client->wait.thread = NULL;
|
|
|
|
|
|
|
|
return client;
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct pipe_server *find_server( struct named_pipe *pipe,
|
|
|
|
enum pipe_state state )
|
|
|
|
{
|
|
|
|
struct pipe_server *x;
|
|
|
|
|
|
|
|
for( x = pipe->servers; x; x = x->next )
|
|
|
|
if( x->state == state )
|
|
|
|
break;
|
2001-07-10 19:16:49 +00:00
|
|
|
|
2003-05-15 04:22:45 +00:00
|
|
|
if( !x )
|
2001-08-23 23:29:20 +00:00
|
|
|
return NULL;
|
|
|
|
|
2003-05-15 04:22:45 +00:00
|
|
|
return (struct pipe_server *) grab_object( x );
|
2001-07-10 19:16:49 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
DECL_HANDLER(create_named_pipe)
|
|
|
|
{
|
|
|
|
struct named_pipe *pipe;
|
2003-05-15 04:22:45 +00:00
|
|
|
struct pipe_server *server;
|
2001-07-10 19:16:49 +00:00
|
|
|
|
2001-11-30 18:46:42 +00:00
|
|
|
reply->handle = 0;
|
|
|
|
pipe = create_named_pipe( get_req_data(), get_req_data_size() );
|
2003-05-15 04:22:45 +00:00
|
|
|
if( !pipe )
|
2001-07-10 19:16:49 +00:00
|
|
|
return;
|
|
|
|
|
2003-05-15 04:22:45 +00:00
|
|
|
if( get_error() != STATUS_OBJECT_NAME_COLLISION )
|
2001-08-27 19:03:42 +00:00
|
|
|
{
|
|
|
|
pipe->insize = req->insize;
|
|
|
|
pipe->outsize = req->outsize;
|
|
|
|
pipe->maxinstances = req->maxinstances;
|
|
|
|
pipe->timeout = req->timeout;
|
|
|
|
pipe->pipemode = req->pipemode;
|
|
|
|
}
|
2003-05-15 04:22:45 +00:00
|
|
|
else
|
|
|
|
{
|
|
|
|
set_error( 0 ); /* clear the name collision */
|
|
|
|
if( pipe->maxinstances <= pipe->instances )
|
|
|
|
{
|
|
|
|
set_error( STATUS_PIPE_BUSY );
|
|
|
|
release_object( pipe );
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
if( ( pipe->maxinstances != req->maxinstances ) ||
|
|
|
|
( pipe->timeout != req->timeout ) ||
|
|
|
|
( pipe->pipemode != req->pipemode ) )
|
|
|
|
{
|
|
|
|
set_error( STATUS_ACCESS_DENIED );
|
|
|
|
release_object( pipe );
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
}
|
2001-08-27 19:03:42 +00:00
|
|
|
|
2003-05-15 04:22:45 +00:00
|
|
|
server = create_pipe_server( pipe );
|
|
|
|
if(server)
|
2001-07-10 19:16:49 +00:00
|
|
|
{
|
2003-05-15 04:22:45 +00:00
|
|
|
server->state = ps_idle_server;
|
|
|
|
reply->handle = alloc_handle( current->process, server,
|
|
|
|
GENERIC_READ|GENERIC_WRITE, 0 );
|
|
|
|
server->pipe->instances++;
|
|
|
|
release_object( server );
|
2001-07-10 19:16:49 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
release_object( pipe );
|
|
|
|
}
|
|
|
|
|
|
|
|
DECL_HANDLER(open_named_pipe)
|
|
|
|
{
|
2003-05-15 04:22:45 +00:00
|
|
|
struct pipe_server *server;
|
|
|
|
struct pipe_client *client;
|
2001-07-10 19:16:49 +00:00
|
|
|
struct named_pipe *pipe;
|
2003-05-15 04:22:45 +00:00
|
|
|
int fds[2];
|
2001-07-10 19:16:49 +00:00
|
|
|
|
2001-11-30 18:46:42 +00:00
|
|
|
reply->handle = 0;
|
2001-07-10 19:16:49 +00:00
|
|
|
|
2003-05-15 04:22:45 +00:00
|
|
|
pipe = open_named_pipe( get_req_data(), get_req_data_size() );
|
|
|
|
if ( !pipe )
|
2001-07-10 19:16:49 +00:00
|
|
|
{
|
2003-02-19 00:33:32 +00:00
|
|
|
set_error( STATUS_NO_SUCH_FILE );
|
|
|
|
return;
|
|
|
|
}
|
2003-05-15 04:22:45 +00:00
|
|
|
|
|
|
|
for( server = pipe->servers; server; server = server->next )
|
|
|
|
if( ( server->state==ps_idle_server ) ||
|
|
|
|
( server->state==ps_wait_open ) )
|
|
|
|
break;
|
|
|
|
release_object( pipe );
|
|
|
|
|
|
|
|
if ( !server )
|
2003-02-19 00:33:32 +00:00
|
|
|
{
|
|
|
|
set_error( STATUS_PIPE_NOT_AVAILABLE );
|
|
|
|
return;
|
|
|
|
}
|
2001-08-23 23:29:20 +00:00
|
|
|
|
2003-05-15 04:22:45 +00:00
|
|
|
client = create_pipe_client( server );
|
|
|
|
if( client )
|
|
|
|
{
|
|
|
|
if( !socketpair( PF_UNIX, SOCK_STREAM, 0, fds ) )
|
2001-07-10 19:16:49 +00:00
|
|
|
{
|
2003-05-15 04:22:45 +00:00
|
|
|
assert( !client->fd );
|
|
|
|
assert( !server->fd );
|
|
|
|
client->fd = create_anonymous_fd( &pipe_server_fd_ops,
|
|
|
|
fds[1], &client->obj );
|
|
|
|
server->fd = create_anonymous_fd( &pipe_server_fd_ops,
|
|
|
|
fds[0], &server->obj );
|
|
|
|
if (client->fd && server->fd)
|
2001-07-10 19:16:49 +00:00
|
|
|
{
|
2003-05-15 04:22:45 +00:00
|
|
|
if( server->state == ps_wait_open )
|
|
|
|
notify_waiter( &server->wait, STATUS_SUCCESS );
|
|
|
|
assert( !server->wait.thread );
|
|
|
|
server->state = ps_connected_server;
|
|
|
|
server->client = client;
|
|
|
|
client->server = server;
|
|
|
|
reply->handle = alloc_handle( current->process, client,
|
2003-06-14 01:31:56 +00:00
|
|
|
req->access, req->inherit );
|
2001-07-10 19:16:49 +00:00
|
|
|
}
|
|
|
|
}
|
2003-05-15 04:22:45 +00:00
|
|
|
else
|
|
|
|
file_set_error();
|
2001-07-10 19:16:49 +00:00
|
|
|
|
2003-05-15 04:22:45 +00:00
|
|
|
release_object( client );
|
2003-02-19 00:33:32 +00:00
|
|
|
}
|
2001-07-10 19:16:49 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
DECL_HANDLER(connect_named_pipe)
|
|
|
|
{
|
2003-05-15 04:22:45 +00:00
|
|
|
struct pipe_server *server;
|
2001-07-10 19:16:49 +00:00
|
|
|
|
2003-05-15 04:22:45 +00:00
|
|
|
server = get_pipe_server_obj(current->process, req->handle, 0);
|
|
|
|
if(!server)
|
2001-07-10 19:16:49 +00:00
|
|
|
return;
|
|
|
|
|
2003-05-15 04:22:45 +00:00
|
|
|
switch( server->state )
|
2001-07-10 19:16:49 +00:00
|
|
|
{
|
2003-05-15 04:22:45 +00:00
|
|
|
case ps_idle_server:
|
|
|
|
case ps_wait_connect:
|
|
|
|
assert( !server->fd );
|
|
|
|
server->state = ps_wait_open;
|
|
|
|
set_waiter( &server->wait, req->func, req->overlapped );
|
|
|
|
notify_connect_waiters( server->pipe );
|
|
|
|
break;
|
|
|
|
case ps_connected_server:
|
|
|
|
assert( server->fd );
|
|
|
|
set_error( STATUS_PIPE_CONNECTED );
|
|
|
|
break;
|
|
|
|
case ps_disconnected_server:
|
|
|
|
set_error( STATUS_PIPE_BUSY );
|
|
|
|
break;
|
|
|
|
case ps_wait_disconnect:
|
|
|
|
set_error( STATUS_NO_DATA_DETECTED );
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
set_error( STATUS_INVALID_HANDLE );
|
|
|
|
break;
|
2001-08-23 23:29:20 +00:00
|
|
|
}
|
|
|
|
|
2003-05-15 04:22:45 +00:00
|
|
|
release_object(server);
|
2001-08-23 23:29:20 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
DECL_HANDLER(wait_named_pipe)
|
|
|
|
{
|
|
|
|
struct named_pipe *pipe;
|
2003-05-15 04:22:45 +00:00
|
|
|
struct pipe_server *server;
|
2001-08-23 23:29:20 +00:00
|
|
|
|
2003-02-19 00:33:32 +00:00
|
|
|
if (!(pipe = open_named_pipe( get_req_data(), get_req_data_size() )))
|
2001-08-23 23:29:20 +00:00
|
|
|
{
|
2003-02-19 00:33:32 +00:00
|
|
|
set_error( STATUS_PIPE_NOT_AVAILABLE );
|
|
|
|
return;
|
|
|
|
}
|
2003-05-15 04:22:45 +00:00
|
|
|
server = find_server( pipe, ps_wait_open );
|
|
|
|
if( server )
|
2003-02-19 00:33:32 +00:00
|
|
|
{
|
2003-05-15 04:22:45 +00:00
|
|
|
/* there's already a server waiting for a client to connect */
|
|
|
|
struct wait_info wait;
|
|
|
|
set_waiter( &wait, req->func, req->overlapped );
|
|
|
|
notify_waiter( &wait, STATUS_SUCCESS );
|
|
|
|
release_object( server );
|
2003-02-19 00:33:32 +00:00
|
|
|
}
|
|
|
|
else
|
2003-05-15 04:22:45 +00:00
|
|
|
queue_connect_waiter( pipe, req->func, req->overlapped );
|
2001-08-23 23:29:20 +00:00
|
|
|
|
2003-05-15 04:22:45 +00:00
|
|
|
release_object( pipe );
|
2001-08-23 23:29:20 +00:00
|
|
|
}
|
2001-07-10 19:16:49 +00:00
|
|
|
|
2001-08-23 23:29:20 +00:00
|
|
|
DECL_HANDLER(disconnect_named_pipe)
|
|
|
|
{
|
2003-05-15 04:22:45 +00:00
|
|
|
struct pipe_server *server;
|
2001-08-23 23:29:20 +00:00
|
|
|
|
2003-05-15 04:22:45 +00:00
|
|
|
reply->fd = -1;
|
|
|
|
server = get_pipe_server_obj( current->process, req->handle, 0 );
|
|
|
|
if( !server )
|
2001-08-23 23:29:20 +00:00
|
|
|
return;
|
2003-05-15 04:22:45 +00:00
|
|
|
switch( server->state )
|
2001-08-23 23:29:20 +00:00
|
|
|
{
|
2003-05-15 04:22:45 +00:00
|
|
|
case ps_connected_server:
|
|
|
|
assert( server->fd );
|
|
|
|
assert( server->client );
|
|
|
|
assert( server->client->fd );
|
|
|
|
|
|
|
|
notify_empty( server );
|
|
|
|
notify_waiter( &server->client->wait, STATUS_PIPE_DISCONNECTED );
|
|
|
|
|
|
|
|
/* Dump the client and server fds, but keep the pointers
|
|
|
|
around - client loses all waiting data */
|
|
|
|
server->state = ps_disconnected_server;
|
|
|
|
do_disconnect( server );
|
|
|
|
reply->fd = flush_cached_fd( current->process, req->handle );
|
|
|
|
break;
|
|
|
|
|
|
|
|
case ps_wait_disconnect:
|
|
|
|
assert( !server->client );
|
|
|
|
assert( server->fd );
|
|
|
|
do_disconnect( server );
|
|
|
|
server->state = ps_wait_connect;
|
|
|
|
reply->fd = flush_cached_fd( current->process, req->handle );
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
set_error( STATUS_PIPE_DISCONNECTED );
|
2001-08-23 23:29:20 +00:00
|
|
|
}
|
2003-05-15 04:22:45 +00:00
|
|
|
release_object( server );
|
2001-07-10 19:16:49 +00:00
|
|
|
}
|
2001-08-27 19:03:42 +00:00
|
|
|
|
|
|
|
DECL_HANDLER(get_named_pipe_info)
|
|
|
|
{
|
2003-05-15 04:22:45 +00:00
|
|
|
struct pipe_server *server;
|
2001-08-27 19:03:42 +00:00
|
|
|
|
2003-05-15 04:22:45 +00:00
|
|
|
server = get_pipe_server_obj( current->process, req->handle, 0 );
|
|
|
|
if(!server)
|
2001-08-27 19:03:42 +00:00
|
|
|
return;
|
|
|
|
|
2003-05-15 04:22:45 +00:00
|
|
|
reply->flags = server->pipe->pipemode;
|
|
|
|
reply->maxinstances = server->pipe->maxinstances;
|
|
|
|
reply->insize = server->pipe->insize;
|
|
|
|
reply->outsize = server->pipe->outsize;
|
2001-08-27 19:03:42 +00:00
|
|
|
|
2003-05-15 04:22:45 +00:00
|
|
|
release_object(server);
|
2001-08-27 19:03:42 +00:00
|
|
|
}
|