2001-07-10 21:16:49 +02:00
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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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2001-08-24 01:29:20 +02:00
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* Copyright (C) 2001 Mike McCormack
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2017-03-26 12:52:39 +02:00
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* Copyright 2016 Jacek Caban for CodeWeavers
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2001-08-24 01:29:20 +02:00
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*
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2002-03-10 00:29:33 +01:00
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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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2006-05-18 14:49:52 +02:00
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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2001-07-10 21:16:49 +02:00
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*/
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#include "config.h"
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2002-04-26 21:05:15 +02:00
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#include "wine/port.h"
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2001-07-10 21:16:49 +02:00
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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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2003-09-06 01:08:26 +02:00
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#include <stdarg.h>
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2001-07-10 21:16:49 +02:00
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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 23:27:13 +01:00
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#ifdef HAVE_SYS_SOCKET_H
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2001-07-10 21:16:49 +02:00
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#include <sys/socket.h>
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2003-02-11 23:27:13 +01:00
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#endif
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2001-07-10 21:16:49 +02:00
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#include <time.h>
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#include <unistd.h>
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2005-03-04 13:38:36 +01:00
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#ifdef HAVE_POLL_H
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#include <poll.h>
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#endif
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2001-07-10 21:16:49 +02:00
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2005-11-28 17:32:54 +01:00
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#include "ntstatus.h"
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#define WIN32_NO_STATUS
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2003-09-06 01:08:26 +02:00
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#include "windef.h"
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2005-06-08 21:11:46 +02:00
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#include "winternl.h"
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2007-04-16 14:51:29 +02:00
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#include "winioctl.h"
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2001-07-10 21:16:49 +02:00
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2003-01-30 01:26:44 +01:00
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#include "file.h"
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2001-07-10 21:16:49 +02:00
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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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2014-11-12 11:25:23 +01:00
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#include "security.h"
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2001-07-10 21:16:49 +02:00
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2001-08-24 01:29:20 +02:00
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enum pipe_state
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{
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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 06:22:45 +02:00
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ps_wait_disconnect,
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ps_wait_connect
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};
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2001-07-10 21:16:49 +02:00
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struct named_pipe;
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2017-03-21 13:03:03 +01:00
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struct pipe_message
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{
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struct list entry; /* entry in message queue */
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data_size_t read_pos; /* already read bytes */
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struct iosb *iosb; /* message iosb */
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struct async *async; /* async of pending write */
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};
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2017-02-22 14:51:06 +01:00
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struct pipe_end
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2003-05-15 06:22:45 +02:00
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{
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2005-02-03 11:48:23 +01:00
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struct object obj; /* object header */
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struct fd *fd; /* pipe file descriptor */
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2017-02-22 14:51:06 +01:00
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unsigned int flags; /* pipe flags */
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2017-03-15 23:25:25 +01:00
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struct pipe_end *connection; /* the other end of the pipe */
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2017-03-15 23:25:31 +01:00
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data_size_t buffer_size;/* size of buffered data that doesn't block caller */
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2017-03-21 13:03:03 +01:00
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struct list message_queue;
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2017-03-23 15:41:43 +01:00
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struct async_queue *read_q; /* read queue */
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2017-03-21 13:03:26 +01:00
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struct async_queue *write_q; /* write queue */
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2017-02-22 14:51:06 +01:00
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};
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struct pipe_server
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{
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struct pipe_end pipe_end; /* common header for pipe_client and pipe_server */
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2007-04-18 16:26:37 +02:00
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struct fd *ioctl_fd; /* file descriptor for ioctls when not connected */
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2005-02-03 11:48:23 +01:00
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struct list entry; /* entry in named pipe servers list */
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enum pipe_state state; /* server state */
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struct pipe_client *client; /* client that this server is connected to */
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2003-05-15 06:22:45 +02:00
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struct named_pipe *pipe;
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struct timeout_user *flush_poll;
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2005-06-08 21:11:46 +02:00
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unsigned int options; /* pipe options */
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2003-05-15 06:22:45 +02:00
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};
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struct pipe_client
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{
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2017-02-22 14:51:06 +01:00
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struct pipe_end pipe_end; /* common header for pipe_client and pipe_server */
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2005-02-03 11:48:23 +01:00
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struct pipe_server *server; /* server that this client is connected to */
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2005-06-08 21:11:46 +02:00
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unsigned int flags; /* file flags */
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2001-07-10 21:16:49 +02:00
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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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2005-04-18 16:57:04 +02:00
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unsigned int flags;
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2011-09-26 13:57:15 +02:00
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unsigned int sharing;
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2001-07-10 21:16:49 +02:00
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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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2003-05-15 06:22:45 +02:00
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unsigned int instances;
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2007-04-17 20:08:59 +02:00
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timeout_t timeout;
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2005-02-03 11:48:23 +01:00
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struct list servers; /* list of servers using this pipe */
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2007-04-02 20:09:29 +02:00
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struct async_queue *waiters; /* list of clients waiting to connect */
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2001-07-10 21:16:49 +02:00
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};
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2005-12-05 13:09:35 +01:00
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struct named_pipe_device
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{
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struct object obj; /* object header */
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2005-12-12 14:30:06 +01:00
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struct fd *fd; /* pseudo-fd for ioctls */
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2005-12-05 13:09:35 +01:00
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struct namespace *pipes; /* named pipe namespace */
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};
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2001-07-10 21:16:49 +02:00
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static void named_pipe_dump( struct object *obj, int verbose );
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2005-12-12 16:46:17 +01:00
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static unsigned int named_pipe_map_access( struct object *obj, unsigned int access );
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2016-02-04 13:08:02 +01:00
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static int named_pipe_link_name( struct object *obj, struct object_name *name, struct object *parent );
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2007-03-22 16:47:46 +01:00
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static struct object *named_pipe_open_file( struct object *obj, unsigned int access,
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unsigned int sharing, unsigned int options );
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2003-05-15 06:22:45 +02:00
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static void named_pipe_destroy( struct object *obj );
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2001-07-10 21:16:49 +02:00
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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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2007-12-05 18:16:42 +01:00
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no_get_type, /* get_type */
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2001-07-10 21:16:49 +02:00
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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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2005-04-24 19:35:52 +02:00
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no_signal, /* signal */
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2001-07-10 21:16:49 +02:00
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no_get_fd, /* get_fd */
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2005-12-12 16:46:17 +01:00
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named_pipe_map_access, /* map_access */
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2007-10-03 14:10:37 +02:00
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default_get_sd, /* get_sd */
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default_set_sd, /* set_sd */
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2005-11-22 15:55:42 +01:00
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no_lookup_name, /* lookup_name */
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2016-02-04 13:08:02 +01:00
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named_pipe_link_name, /* link_name */
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default_unlink_name, /* unlink_name */
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2007-03-22 16:47:46 +01:00
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named_pipe_open_file, /* open_file */
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2005-06-09 17:39:52 +02:00
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no_close_handle, /* close_handle */
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2001-07-10 21:16:49 +02:00
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named_pipe_destroy /* destroy */
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};
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2017-03-15 23:25:42 +01:00
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/* common server and client pipe end functions */
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2017-04-24 15:18:14 +02:00
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static enum server_fd_type pipe_end_get_fd_type( struct fd *fd );
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2017-06-26 12:17:36 +02:00
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static int pipe_end_read( struct fd *fd, struct async *async, file_pos_t pos );
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2017-06-26 12:18:23 +02:00
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static int pipe_end_write( struct fd *fd, struct async *async_data, file_pos_t pos );
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2017-03-15 23:25:42 +01:00
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static void pipe_end_queue_async( struct fd *fd, struct async *async, int type, int count );
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2017-03-21 13:03:26 +01:00
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static void pipe_end_reselect_async( struct fd *fd, struct async_queue *queue );
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2017-03-15 23:25:42 +01:00
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2003-05-15 06:22:45 +02:00
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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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2017-06-26 12:20:20 +02:00
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static int pipe_server_flush( struct fd *fd, struct async *async );
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2017-06-26 12:20:10 +02:00
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static int pipe_server_ioctl( struct fd *fd, ioctl_code_t code, struct async *async );
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2003-05-15 06:22:45 +02:00
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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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2007-12-05 18:16:42 +01:00
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no_get_type, /* get_type */
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2007-04-04 19:39:29 +02:00
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add_queue, /* add_queue */
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remove_queue, /* remove_queue */
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2003-05-15 06:22:45 +02:00
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default_fd_signaled, /* signaled */
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no_satisfied, /* satisfied */
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2005-04-24 19:35:52 +02:00
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no_signal, /* signal */
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2003-05-15 06:22:45 +02:00
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pipe_server_get_fd, /* get_fd */
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2007-10-02 14:20:15 +02:00
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default_fd_map_access, /* map_access */
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2007-10-03 14:10:37 +02:00
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default_get_sd, /* get_sd */
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default_set_sd, /* set_sd */
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2005-11-22 15:55:42 +01:00
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no_lookup_name, /* lookup_name */
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2016-02-04 13:07:19 +01:00
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no_link_name, /* link_name */
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NULL, /* unlink_name */
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2007-03-22 11:44:29 +01:00
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no_open_file, /* open_file */
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2006-11-02 20:52:22 +01:00
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fd_close_handle, /* close_handle */
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2003-05-15 06:22:45 +02:00
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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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2007-04-10 17:07:27 +02:00
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default_fd_get_poll_events, /* get_poll_events */
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2003-05-15 06:22:45 +02:00
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default_poll_event, /* poll_event */
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2017-04-24 15:18:14 +02:00
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pipe_end_get_fd_type, /* get_fd_type */
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2017-03-23 15:42:03 +01:00
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pipe_end_read, /* read */
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2017-03-21 13:03:39 +01:00
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pipe_end_write, /* write */
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2015-05-05 05:17:45 +02:00
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pipe_server_flush, /* flush */
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2007-04-16 14:51:29 +02:00
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pipe_server_ioctl, /* ioctl */
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2017-03-15 23:25:42 +01:00
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pipe_end_queue_async, /* queue_async */
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2017-03-21 13:03:26 +01:00
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pipe_end_reselect_async /* reselect_async */
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2003-05-15 06:22:45 +02:00
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};
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2003-02-19 01:33:32 +01:00
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2003-05-15 06:22:45 +02:00
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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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2013-08-26 11:55:04 +02:00
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static int pipe_client_signaled( struct object *obj, struct wait_queue_entry *entry );
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2003-05-15 06:22:45 +02:00
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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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2017-06-26 12:20:20 +02:00
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static int pipe_client_flush( struct fd *fd, struct async *async );
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2017-06-26 12:20:10 +02:00
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static int pipe_client_ioctl( struct fd *fd, ioctl_code_t code, struct async *async );
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2001-07-10 21:16:49 +02:00
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2003-05-15 06:22:45 +02:00
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static const struct object_ops pipe_client_ops =
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2001-07-10 21:16:49 +02:00
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{
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2003-05-15 06:22:45 +02:00
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sizeof(struct pipe_client), /* size */
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pipe_client_dump, /* dump */
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2007-12-05 18:16:42 +01:00
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no_get_type, /* get_type */
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2007-04-04 19:39:29 +02:00
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add_queue, /* add_queue */
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remove_queue, /* remove_queue */
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2009-06-09 12:11:05 +02:00
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pipe_client_signaled, /* signaled */
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2001-07-10 21:16:49 +02:00
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no_satisfied, /* satisfied */
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2005-04-24 19:35:52 +02:00
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no_signal, /* signal */
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2003-05-15 06:22:45 +02:00
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pipe_client_get_fd, /* get_fd */
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2007-10-02 14:20:15 +02:00
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default_fd_map_access, /* map_access */
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2007-10-03 14:10:37 +02:00
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default_get_sd, /* get_sd */
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default_set_sd, /* set_sd */
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2005-11-22 15:55:42 +01:00
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no_lookup_name, /* lookup_name */
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2016-02-04 13:07:19 +01:00
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no_link_name, /* link_name */
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NULL, /* unlink_name */
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2007-03-22 11:44:29 +01:00
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no_open_file, /* open_file */
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2006-11-02 20:52:22 +01:00
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fd_close_handle, /* close_handle */
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2003-05-15 06:22:45 +02:00
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pipe_client_destroy /* destroy */
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2003-01-30 01:26:44 +01:00
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};
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2003-05-15 06:22:45 +02:00
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static const struct fd_ops pipe_client_fd_ops =
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2003-01-30 01:26:44 +01:00
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{
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2005-06-08 21:11:46 +02:00
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default_fd_get_poll_events, /* get_poll_events */
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2001-07-10 21:16:49 +02:00
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default_poll_event, /* poll_event */
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2017-04-24 15:18:14 +02:00
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pipe_end_get_fd_type, /* get_fd_type */
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2017-03-23 15:42:03 +01:00
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pipe_end_read, /* read */
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2017-03-21 13:03:39 +01:00
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pipe_end_write, /* write */
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2015-05-05 05:17:45 +02:00
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pipe_client_flush, /* flush */
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2017-03-21 13:03:55 +01:00
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pipe_client_ioctl, /* ioctl */
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2017-03-15 23:25:42 +01:00
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pipe_end_queue_async, /* queue_async */
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2017-03-21 13:03:26 +01:00
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pipe_end_reselect_async /* reselect_async */
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2001-07-10 21:16:49 +02:00
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};
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2005-12-05 13:09:35 +01:00
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static void named_pipe_device_dump( struct object *obj, int verbose );
|
2007-12-05 18:16:42 +01:00
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static struct object_type *named_pipe_device_get_type( struct object *obj );
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2005-12-12 14:30:06 +01:00
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static struct fd *named_pipe_device_get_fd( struct object *obj );
|
2005-12-05 13:09:35 +01:00
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static struct object *named_pipe_device_lookup_name( struct object *obj,
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struct unicode_str *name, unsigned int attr );
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2007-03-22 11:52:40 +01:00
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static struct object *named_pipe_device_open_file( struct object *obj, unsigned int access,
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|
|
unsigned int sharing, unsigned int options );
|
2005-12-05 13:09:35 +01:00
|
|
|
static void named_pipe_device_destroy( struct object *obj );
|
2007-04-10 22:26:23 +02:00
|
|
|
static enum server_fd_type named_pipe_device_get_fd_type( struct fd *fd );
|
2017-06-26 12:20:10 +02:00
|
|
|
static int named_pipe_device_ioctl( struct fd *fd, ioctl_code_t code, struct async *async );
|
2005-12-05 13:09:35 +01:00
|
|
|
|
|
|
|
static const struct object_ops named_pipe_device_ops =
|
|
|
|
{
|
|
|
|
sizeof(struct named_pipe_device), /* size */
|
|
|
|
named_pipe_device_dump, /* dump */
|
2007-12-05 18:16:42 +01:00
|
|
|
named_pipe_device_get_type, /* get_type */
|
2005-12-05 13:09:35 +01:00
|
|
|
no_add_queue, /* add_queue */
|
|
|
|
NULL, /* remove_queue */
|
|
|
|
NULL, /* signaled */
|
|
|
|
no_satisfied, /* satisfied */
|
|
|
|
no_signal, /* signal */
|
2005-12-12 14:30:06 +01:00
|
|
|
named_pipe_device_get_fd, /* get_fd */
|
2007-04-18 16:32:31 +02:00
|
|
|
no_map_access, /* map_access */
|
2007-10-03 14:10:37 +02:00
|
|
|
default_get_sd, /* get_sd */
|
|
|
|
default_set_sd, /* set_sd */
|
2005-12-05 13:09:35 +01:00
|
|
|
named_pipe_device_lookup_name, /* lookup_name */
|
2016-02-04 13:08:02 +01:00
|
|
|
directory_link_name, /* link_name */
|
|
|
|
default_unlink_name, /* unlink_name */
|
2007-03-22 11:52:40 +01:00
|
|
|
named_pipe_device_open_file, /* open_file */
|
2006-11-02 20:52:22 +01:00
|
|
|
fd_close_handle, /* close_handle */
|
2005-12-05 13:09:35 +01:00
|
|
|
named_pipe_device_destroy /* destroy */
|
|
|
|
};
|
|
|
|
|
2005-12-12 14:30:06 +01:00
|
|
|
static const struct fd_ops named_pipe_device_fd_ops =
|
|
|
|
{
|
2005-12-13 12:00:11 +01:00
|
|
|
default_fd_get_poll_events, /* get_poll_events */
|
|
|
|
default_poll_event, /* poll_event */
|
2007-04-10 22:26:23 +02:00
|
|
|
named_pipe_device_get_fd_type, /* get_fd_type */
|
2015-05-05 05:17:45 +02:00
|
|
|
no_fd_read, /* read */
|
|
|
|
no_fd_write, /* write */
|
|
|
|
no_fd_flush, /* flush */
|
2007-04-17 22:07:07 +02:00
|
|
|
named_pipe_device_ioctl, /* ioctl */
|
2005-12-13 12:00:11 +01:00
|
|
|
default_fd_queue_async, /* queue_async */
|
2016-12-01 12:10:34 +01:00
|
|
|
default_fd_reselect_async /* reselect_async */
|
2005-12-12 14:30:06 +01:00
|
|
|
};
|
|
|
|
|
2017-03-23 15:42:25 +01:00
|
|
|
/* Returns if we handle I/O via server calls. Currently message-mode pipes are handled this way. */
|
2017-03-15 23:25:38 +01:00
|
|
|
static int use_server_io( struct pipe_end *pipe_end )
|
|
|
|
{
|
2017-03-23 15:42:25 +01:00
|
|
|
return pipe_end->flags & NAMED_PIPE_MESSAGE_STREAM_WRITE;
|
2017-03-15 23:25:38 +01:00
|
|
|
}
|
|
|
|
|
2001-07-10 21:16:49 +02:00
|
|
|
static void named_pipe_dump( struct object *obj, int verbose )
|
|
|
|
{
|
2016-01-21 13:08:56 +01:00
|
|
|
fputs( "Named pipe\n", stderr );
|
2001-07-10 21:16:49 +02:00
|
|
|
}
|
|
|
|
|
2005-12-12 16:46:17 +01:00
|
|
|
static unsigned int named_pipe_map_access( struct object *obj, unsigned int access )
|
|
|
|
{
|
|
|
|
if (access & GENERIC_READ) access |= STANDARD_RIGHTS_READ;
|
|
|
|
if (access & GENERIC_WRITE) access |= STANDARD_RIGHTS_WRITE | FILE_CREATE_PIPE_INSTANCE;
|
|
|
|
if (access & GENERIC_EXECUTE) access |= STANDARD_RIGHTS_EXECUTE;
|
|
|
|
if (access & GENERIC_ALL) access |= STANDARD_RIGHTS_ALL;
|
|
|
|
return access & ~(GENERIC_READ | GENERIC_WRITE | GENERIC_EXECUTE | GENERIC_ALL);
|
|
|
|
}
|
|
|
|
|
2003-05-15 06:22:45 +02:00
|
|
|
static void pipe_server_dump( struct object *obj, int verbose )
|
|
|
|
{
|
|
|
|
struct pipe_server *server = (struct pipe_server *) obj;
|
|
|
|
assert( obj->ops == &pipe_server_ops );
|
2005-02-03 11:48:23 +01:00
|
|
|
fprintf( stderr, "Named pipe server pipe=%p state=%d\n", server->pipe, server->state );
|
2003-05-15 06:22:45 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
static void pipe_client_dump( struct object *obj, int verbose )
|
2001-07-10 21:16:49 +02:00
|
|
|
{
|
2003-05-15 06:22:45 +02:00
|
|
|
struct pipe_client *client = (struct pipe_client *) obj;
|
2005-02-03 11:48:23 +01:00
|
|
|
assert( obj->ops == &pipe_client_ops );
|
|
|
|
fprintf( stderr, "Named pipe client server=%p\n", client->server );
|
2001-07-10 21:16:49 +02:00
|
|
|
}
|
|
|
|
|
2013-08-26 11:55:04 +02:00
|
|
|
static int pipe_client_signaled( struct object *obj, struct wait_queue_entry *entry )
|
2009-06-09 12:11:05 +02:00
|
|
|
{
|
|
|
|
struct pipe_client *client = (struct pipe_client *) obj;
|
|
|
|
|
2017-02-22 14:51:06 +01:00
|
|
|
return client->pipe_end.fd && is_fd_signaled(client->pipe_end.fd);
|
2009-06-09 12:11:05 +02:00
|
|
|
}
|
|
|
|
|
2005-02-03 11:48:23 +01:00
|
|
|
static void named_pipe_destroy( struct object *obj)
|
|
|
|
{
|
|
|
|
struct named_pipe *pipe = (struct named_pipe *) obj;
|
|
|
|
|
|
|
|
assert( list_empty( &pipe->servers ) );
|
|
|
|
assert( !pipe->instances );
|
2007-04-03 19:36:07 +02:00
|
|
|
free_async_queue( pipe->waiters );
|
2003-05-15 06:22:45 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
static struct fd *pipe_client_get_fd( struct object *obj )
|
|
|
|
{
|
|
|
|
struct pipe_client *client = (struct pipe_client *) obj;
|
2017-02-22 14:51:06 +01:00
|
|
|
if (client->pipe_end.fd)
|
|
|
|
return (struct fd *) grab_object( client->pipe_end.fd );
|
2003-04-17 04:14:04 +02:00
|
|
|
set_error( STATUS_PIPE_DISCONNECTED );
|
|
|
|
return NULL;
|
2003-02-19 01:33:32 +01:00
|
|
|
}
|
|
|
|
|
2007-04-18 16:26:37 +02:00
|
|
|
static void set_server_state( struct pipe_server *server, enum pipe_state state )
|
2003-05-15 06:22:45 +02:00
|
|
|
{
|
2007-04-18 16:26:37 +02:00
|
|
|
server->state = state;
|
2003-05-15 06:22:45 +02:00
|
|
|
|
2007-04-18 16:26:37 +02:00
|
|
|
switch(state)
|
2003-05-15 06:22:45 +02:00
|
|
|
{
|
|
|
|
case ps_connected_server:
|
|
|
|
case ps_wait_disconnect:
|
2017-02-22 14:51:06 +01:00
|
|
|
assert( server->pipe_end.fd );
|
2007-04-18 16:26:37 +02:00
|
|
|
break;
|
2003-05-15 06:22:45 +02:00
|
|
|
case ps_wait_open:
|
|
|
|
case ps_idle_server:
|
2017-02-22 14:51:06 +01:00
|
|
|
assert( !server->pipe_end.fd );
|
2007-04-18 16:26:37 +02:00
|
|
|
set_no_fd_status( server->ioctl_fd, STATUS_PIPE_LISTENING );
|
2003-05-15 06:22:45 +02:00
|
|
|
break;
|
|
|
|
case ps_wait_connect:
|
2017-02-22 14:51:06 +01:00
|
|
|
assert( !server->pipe_end.fd );
|
2007-04-18 16:26:37 +02:00
|
|
|
set_no_fd_status( server->ioctl_fd, STATUS_PIPE_DISCONNECTED );
|
2003-05-15 06:22:45 +02:00
|
|
|
break;
|
|
|
|
}
|
2007-04-18 16:26:37 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
static struct fd *pipe_server_get_fd( struct object *obj )
|
|
|
|
{
|
|
|
|
struct pipe_server *server = (struct pipe_server *) obj;
|
|
|
|
|
2017-02-22 14:51:06 +01:00
|
|
|
return (struct fd *)grab_object( server->pipe_end.fd ? server->pipe_end.fd : server->ioctl_fd );
|
2003-05-15 06:22:45 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void notify_empty( struct pipe_server *server )
|
|
|
|
{
|
2005-06-10 21:54:46 +02:00
|
|
|
if (!server->flush_poll)
|
2003-05-15 06:22:45 +02:00
|
|
|
return;
|
|
|
|
assert( server->state == ps_connected_server );
|
|
|
|
remove_timeout_user( server->flush_poll );
|
|
|
|
server->flush_poll = NULL;
|
2017-02-22 14:51:06 +01:00
|
|
|
fd_async_wake_up( server->pipe_end.fd, ASYNC_TYPE_WAIT, STATUS_SUCCESS );
|
2003-05-15 06:22:45 +02:00
|
|
|
}
|
|
|
|
|
2017-03-21 13:03:26 +01:00
|
|
|
static void wake_message( struct pipe_message *message )
|
|
|
|
{
|
|
|
|
struct async *async = message->async;
|
|
|
|
|
|
|
|
message->async = NULL;
|
|
|
|
message->iosb->status = STATUS_SUCCESS;
|
|
|
|
message->iosb->result = message->iosb->in_size;
|
|
|
|
if (async)
|
|
|
|
{
|
|
|
|
async_terminate( async, message->iosb->result ? STATUS_ALERTED : STATUS_SUCCESS );
|
|
|
|
release_object( async );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2017-03-21 13:03:03 +01:00
|
|
|
static void free_message( struct pipe_message *message )
|
|
|
|
{
|
|
|
|
list_remove( &message->entry );
|
|
|
|
if (message->iosb) release_object( message->iosb );
|
|
|
|
free( message );
|
|
|
|
}
|
|
|
|
|
2017-03-15 23:25:25 +01:00
|
|
|
static void pipe_end_disconnect( struct pipe_end *pipe_end, unsigned int status )
|
|
|
|
{
|
|
|
|
struct pipe_end *connection = pipe_end->connection;
|
|
|
|
|
|
|
|
pipe_end->connection = NULL;
|
|
|
|
|
2017-03-21 13:03:12 +01:00
|
|
|
if (use_server_io( pipe_end ))
|
|
|
|
{
|
|
|
|
struct pipe_message *message, *next;
|
|
|
|
struct async *async;
|
|
|
|
if (pipe_end->fd) fd_async_wake_up( pipe_end->fd, ASYNC_TYPE_WAIT, status );
|
2017-03-23 15:41:43 +01:00
|
|
|
async_wake_up( pipe_end->read_q, status );
|
2017-03-21 13:03:12 +01:00
|
|
|
LIST_FOR_EACH_ENTRY_SAFE( message, next, &pipe_end->message_queue, struct pipe_message, entry )
|
|
|
|
{
|
|
|
|
async = message->async;
|
|
|
|
if (async || status == STATUS_PIPE_DISCONNECTED) free_message( message );
|
|
|
|
if (!async) continue;
|
|
|
|
async_terminate( async, status );
|
|
|
|
release_object( async );
|
|
|
|
}
|
|
|
|
if (status == STATUS_PIPE_DISCONNECTED) set_fd_signaled( pipe_end->fd, 0 );
|
|
|
|
}
|
2017-03-15 23:25:25 +01:00
|
|
|
if (connection)
|
|
|
|
{
|
|
|
|
connection->connection = NULL;
|
|
|
|
pipe_end_disconnect( connection, status );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2003-05-15 06:22:45 +02:00
|
|
|
static void do_disconnect( struct pipe_server *server )
|
|
|
|
{
|
|
|
|
/* we may only have a server fd, if the client disconnected */
|
2005-06-10 21:54:46 +02:00
|
|
|
if (server->client)
|
2003-05-15 06:22:45 +02:00
|
|
|
{
|
|
|
|
assert( server->client->server == server );
|
2017-02-22 14:51:06 +01:00
|
|
|
assert( server->client->pipe_end.fd );
|
2017-03-23 15:42:13 +01:00
|
|
|
if (!use_server_io( &server->pipe_end ))
|
|
|
|
{
|
|
|
|
release_object( server->client->pipe_end.fd );
|
|
|
|
server->client->pipe_end.fd = NULL;
|
|
|
|
}
|
2003-05-15 06:22:45 +02:00
|
|
|
}
|
2017-02-22 14:51:06 +01:00
|
|
|
assert( server->pipe_end.fd );
|
2017-03-15 23:25:38 +01:00
|
|
|
if (!use_server_io( &server->pipe_end ))
|
|
|
|
shutdown( get_unix_fd( server->pipe_end.fd ), SHUT_RDWR );
|
2017-02-22 14:51:06 +01:00
|
|
|
release_object( server->pipe_end.fd );
|
|
|
|
server->pipe_end.fd = NULL;
|
2003-05-15 06:22:45 +02:00
|
|
|
}
|
|
|
|
|
2017-03-21 13:03:03 +01:00
|
|
|
static void pipe_end_destroy( struct pipe_end *pipe_end )
|
|
|
|
{
|
|
|
|
struct pipe_message *message;
|
|
|
|
|
|
|
|
while (!list_empty( &pipe_end->message_queue ))
|
|
|
|
{
|
|
|
|
message = LIST_ENTRY( list_head(&pipe_end->message_queue), struct pipe_message, entry );
|
|
|
|
assert( !message->async );
|
|
|
|
free_message( message );
|
|
|
|
}
|
2017-03-21 13:03:26 +01:00
|
|
|
|
2017-03-23 15:41:43 +01:00
|
|
|
free_async_queue( pipe_end->read_q );
|
2017-03-21 13:03:26 +01:00
|
|
|
free_async_queue( pipe_end->write_q );
|
2017-03-21 13:03:03 +01:00
|
|
|
}
|
|
|
|
|
2003-05-15 06:22:45 +02:00
|
|
|
static void pipe_server_destroy( struct object *obj)
|
|
|
|
{
|
|
|
|
struct pipe_server *server = (struct pipe_server *)obj;
|
|
|
|
|
|
|
|
assert( obj->ops == &pipe_server_ops );
|
|
|
|
|
2017-03-15 23:25:25 +01:00
|
|
|
pipe_end_disconnect( &server->pipe_end, STATUS_PIPE_BROKEN );
|
|
|
|
|
2017-02-22 14:51:06 +01:00
|
|
|
if (server->pipe_end.fd)
|
2003-05-15 06:22:45 +02:00
|
|
|
{
|
|
|
|
notify_empty( server );
|
|
|
|
do_disconnect( server );
|
|
|
|
}
|
|
|
|
|
2017-03-21 13:03:03 +01:00
|
|
|
pipe_end_destroy( &server->pipe_end );
|
2005-06-10 21:54:46 +02:00
|
|
|
if (server->client)
|
2003-05-15 06:22:45 +02:00
|
|
|
{
|
|
|
|
server->client->server = NULL;
|
|
|
|
server->client = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
assert( server->pipe->instances );
|
|
|
|
server->pipe->instances--;
|
|
|
|
|
2007-04-18 16:26:37 +02:00
|
|
|
if (server->ioctl_fd) release_object( server->ioctl_fd );
|
2005-02-03 11:48:23 +01:00
|
|
|
list_remove( &server->entry );
|
2003-05-15 06:22:45 +02:00
|
|
|
release_object( server->pipe );
|
|
|
|
}
|
|
|
|
|
|
|
|
static void pipe_client_destroy( struct object *obj)
|
2001-07-10 21:16:49 +02:00
|
|
|
{
|
2003-05-15 06:22:45 +02:00
|
|
|
struct pipe_client *client = (struct pipe_client *)obj;
|
|
|
|
struct pipe_server *server = client->server;
|
2001-07-10 21:16:49 +02:00
|
|
|
|
2003-05-15 06:22:45 +02:00
|
|
|
assert( obj->ops == &pipe_client_ops );
|
2001-07-10 21:16:49 +02:00
|
|
|
|
2017-03-15 23:25:25 +01:00
|
|
|
pipe_end_disconnect( &client->pipe_end, STATUS_PIPE_BROKEN );
|
|
|
|
|
2005-06-10 21:54:46 +02:00
|
|
|
if (server)
|
2001-08-24 01:29:20 +02:00
|
|
|
{
|
2003-05-15 06:22:45 +02:00
|
|
|
notify_empty( server );
|
|
|
|
|
2005-06-10 21:54:46 +02:00
|
|
|
switch(server->state)
|
2001-08-24 01:29:20 +02:00
|
|
|
{
|
|
|
|
case ps_connected_server:
|
2003-05-15 06:22:45 +02:00
|
|
|
/* Don't destroy the server's fd here as we can't
|
|
|
|
do a successful flush without it. */
|
2007-04-18 16:26:37 +02:00
|
|
|
set_server_state( server, ps_wait_disconnect );
|
2001-08-24 01:29:20 +02:00
|
|
|
break;
|
2005-02-03 11:48:23 +01:00
|
|
|
case ps_idle_server:
|
|
|
|
case ps_wait_open:
|
|
|
|
case ps_wait_disconnect:
|
|
|
|
case ps_wait_connect:
|
2003-05-15 06:22:45 +02:00
|
|
|
assert( 0 );
|
2001-08-24 01:29:20 +02:00
|
|
|
}
|
2003-05-15 06:22:45 +02:00
|
|
|
assert( server->client );
|
|
|
|
server->client = NULL;
|
|
|
|
client->server = NULL;
|
2001-08-24 01:29:20 +02:00
|
|
|
}
|
2017-03-21 13:03:03 +01:00
|
|
|
|
|
|
|
pipe_end_destroy( &client->pipe_end );
|
2017-02-22 14:51:06 +01:00
|
|
|
if (client->pipe_end.fd) release_object( client->pipe_end.fd );
|
2003-02-19 01:33:32 +01:00
|
|
|
}
|
|
|
|
|
2005-12-05 13:09:35 +01:00
|
|
|
static void named_pipe_device_dump( struct object *obj, int verbose )
|
|
|
|
{
|
2016-01-21 13:08:56 +01:00
|
|
|
fputs( "Named pipe device\n", stderr );
|
2005-12-05 13:09:35 +01:00
|
|
|
}
|
|
|
|
|
2007-12-05 18:16:42 +01:00
|
|
|
static struct object_type *named_pipe_device_get_type( struct object *obj )
|
|
|
|
{
|
|
|
|
static const WCHAR name[] = {'D','e','v','i','c','e'};
|
|
|
|
static const struct unicode_str str = { name, sizeof(name) };
|
|
|
|
return get_object_type( &str );
|
|
|
|
}
|
|
|
|
|
2005-12-12 14:30:06 +01:00
|
|
|
static struct fd *named_pipe_device_get_fd( struct object *obj )
|
|
|
|
{
|
|
|
|
struct named_pipe_device *device = (struct named_pipe_device *)obj;
|
2005-12-13 11:22:28 +01:00
|
|
|
return (struct fd *)grab_object( device->fd );
|
2005-12-12 14:30:06 +01:00
|
|
|
}
|
|
|
|
|
2005-12-05 13:09:35 +01:00
|
|
|
static struct object *named_pipe_device_lookup_name( struct object *obj, struct unicode_str *name,
|
|
|
|
unsigned int attr )
|
|
|
|
{
|
|
|
|
struct named_pipe_device *device = (struct named_pipe_device*)obj;
|
|
|
|
struct object *found;
|
|
|
|
|
|
|
|
assert( obj->ops == &named_pipe_device_ops );
|
|
|
|
assert( device->pipes );
|
|
|
|
|
2016-02-09 12:16:27 +01:00
|
|
|
if (!name) return NULL; /* open the device itself */
|
|
|
|
|
2005-12-05 13:09:35 +01:00
|
|
|
if ((found = find_object( device->pipes, name, attr | OBJ_CASE_INSENSITIVE )))
|
|
|
|
name->len = 0;
|
|
|
|
|
|
|
|
return found;
|
|
|
|
}
|
|
|
|
|
2007-03-22 11:52:40 +01:00
|
|
|
static struct object *named_pipe_device_open_file( struct object *obj, unsigned int access,
|
|
|
|
unsigned int sharing, unsigned int options )
|
|
|
|
{
|
|
|
|
return grab_object( obj );
|
|
|
|
}
|
|
|
|
|
2005-12-05 13:09:35 +01:00
|
|
|
static void named_pipe_device_destroy( struct object *obj )
|
|
|
|
{
|
|
|
|
struct named_pipe_device *device = (struct named_pipe_device*)obj;
|
|
|
|
assert( obj->ops == &named_pipe_device_ops );
|
2005-12-12 14:30:06 +01:00
|
|
|
if (device->fd) release_object( device->fd );
|
2006-10-09 23:34:36 +02:00
|
|
|
free( device->pipes );
|
2005-12-05 13:09:35 +01:00
|
|
|
}
|
|
|
|
|
2007-04-10 22:26:23 +02:00
|
|
|
static enum server_fd_type named_pipe_device_get_fd_type( struct fd *fd )
|
2005-12-13 12:00:11 +01:00
|
|
|
{
|
2006-11-20 14:14:04 +01:00
|
|
|
return FD_TYPE_DEVICE;
|
2005-12-13 12:00:11 +01:00
|
|
|
}
|
|
|
|
|
2016-07-18 08:34:08 +02:00
|
|
|
struct object *create_named_pipe_device( struct object *root, const struct unicode_str *name )
|
2005-12-05 13:09:35 +01:00
|
|
|
{
|
|
|
|
struct named_pipe_device *dev;
|
|
|
|
|
2016-02-12 14:57:33 +01:00
|
|
|
if ((dev = create_named_object( root, &named_pipe_device_ops, name, 0, NULL )) &&
|
2005-12-05 13:09:35 +01:00
|
|
|
get_error() != STATUS_OBJECT_NAME_EXISTS)
|
|
|
|
{
|
2005-12-12 14:30:06 +01:00
|
|
|
dev->pipes = NULL;
|
2007-05-03 16:07:30 +02:00
|
|
|
if (!(dev->fd = alloc_pseudo_fd( &named_pipe_device_fd_ops, &dev->obj, 0 )) ||
|
2005-12-12 14:30:06 +01:00
|
|
|
!(dev->pipes = create_namespace( 7 )))
|
2005-12-05 13:09:35 +01:00
|
|
|
{
|
|
|
|
release_object( dev );
|
|
|
|
dev = NULL;
|
|
|
|
}
|
|
|
|
}
|
2016-07-18 08:34:08 +02:00
|
|
|
return &dev->obj;
|
2005-12-05 13:09:35 +01:00
|
|
|
}
|
|
|
|
|
2003-05-15 06:22:45 +02:00
|
|
|
static int pipe_data_remaining( struct pipe_server *server )
|
|
|
|
{
|
|
|
|
struct pollfd pfd;
|
|
|
|
int fd;
|
|
|
|
|
|
|
|
assert( server->client );
|
|
|
|
|
2017-03-15 23:25:38 +01:00
|
|
|
if (use_server_io( &server->pipe_end ))
|
2017-03-21 13:03:03 +01:00
|
|
|
return !list_empty( &server->client->pipe_end.message_queue );
|
2017-03-15 23:25:38 +01:00
|
|
|
|
2017-02-22 14:51:06 +01:00
|
|
|
fd = get_unix_fd( server->client->pipe_end.fd );
|
2005-06-10 21:54:46 +02:00
|
|
|
if (fd < 0)
|
2003-05-15 06:22:45 +02:00
|
|
|
return 0;
|
|
|
|
pfd.fd = fd;
|
|
|
|
pfd.events = POLLIN;
|
|
|
|
pfd.revents = 0;
|
|
|
|
|
2005-06-10 21:54:46 +02:00
|
|
|
if (0 > poll( &pfd, 1, 0 ))
|
2003-05-15 06:22:45 +02:00
|
|
|
return 0;
|
|
|
|
|
|
|
|
return pfd.revents&POLLIN;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void check_flushed( void *arg )
|
|
|
|
{
|
|
|
|
struct pipe_server *server = (struct pipe_server*) arg;
|
|
|
|
|
2005-06-10 21:54:46 +02:00
|
|
|
if (pipe_data_remaining( server ))
|
2003-05-15 06:22:45 +02:00
|
|
|
{
|
2007-04-17 20:08:59 +02:00
|
|
|
server->flush_poll = add_timeout_user( -TICKS_PER_SEC / 10, check_flushed, server );
|
2003-05-15 06:22:45 +02:00
|
|
|
}
|
|
|
|
else
|
2004-07-15 20:59:58 +02:00
|
|
|
{
|
|
|
|
server->flush_poll = NULL;
|
2017-02-22 14:51:06 +01:00
|
|
|
fd_async_wake_up( server->pipe_end.fd, ASYNC_TYPE_WAIT, STATUS_SUCCESS );
|
2004-07-15 20:59:58 +02:00
|
|
|
}
|
2003-05-15 06:22:45 +02:00
|
|
|
}
|
|
|
|
|
2017-06-26 12:20:20 +02:00
|
|
|
static int pipe_end_flush( struct pipe_end *pipe_end, struct async *async )
|
2017-02-22 14:51:17 +01:00
|
|
|
{
|
2017-03-26 12:52:50 +02:00
|
|
|
if (use_server_io( pipe_end ) && (!pipe_end->connection || list_empty( &pipe_end->connection->message_queue )))
|
2017-06-26 12:20:20 +02:00
|
|
|
return 1;
|
2017-03-26 12:52:50 +02:00
|
|
|
|
2017-02-22 14:51:17 +01:00
|
|
|
if (!fd_queue_async( pipe_end->fd, async, ASYNC_TYPE_WAIT )) return 0;
|
|
|
|
|
2017-06-26 12:20:20 +02:00
|
|
|
set_error( STATUS_PENDING );
|
|
|
|
return 1;
|
2017-02-22 14:51:17 +01:00
|
|
|
}
|
|
|
|
|
2017-06-26 12:20:20 +02:00
|
|
|
static int pipe_server_flush( struct fd *fd, struct async *async )
|
2003-05-15 06:22:45 +02:00
|
|
|
{
|
|
|
|
struct pipe_server *server = get_fd_user( fd );
|
2017-02-22 14:51:17 +01:00
|
|
|
obj_handle_t handle;
|
2003-05-15 06:22:45 +02:00
|
|
|
|
2017-06-26 12:20:20 +02:00
|
|
|
if (!server || server->state != ps_connected_server) return 1;
|
2003-05-15 06:22:45 +02:00
|
|
|
|
2017-06-26 12:20:20 +02:00
|
|
|
if (!pipe_data_remaining( server )) return 1;
|
2003-05-15 06:22:45 +02:00
|
|
|
|
2017-04-12 13:54:56 +02:00
|
|
|
handle = pipe_end_flush( &server->pipe_end, async );
|
2017-02-22 14:51:17 +01:00
|
|
|
|
|
|
|
/* there's no unix way to be alerted when a pipe becomes empty, so resort to polling */
|
2017-03-15 23:25:38 +01:00
|
|
|
if (handle && !use_server_io( &server->pipe_end ) && !server->flush_poll)
|
2017-02-22 14:51:17 +01:00
|
|
|
server->flush_poll = add_timeout_user( -TICKS_PER_SEC / 10, check_flushed, server );
|
2015-05-05 05:23:08 +02:00
|
|
|
return handle;
|
2003-05-15 06:22:45 +02:00
|
|
|
}
|
|
|
|
|
2017-06-26 12:20:20 +02:00
|
|
|
static int pipe_client_flush( struct fd *fd, struct async *async )
|
2003-05-15 06:22:45 +02:00
|
|
|
{
|
2017-03-26 12:52:50 +02:00
|
|
|
struct pipe_end *pipe_end = get_fd_user( fd );
|
|
|
|
/* FIXME: Support byte mode. */
|
2017-06-26 12:20:20 +02:00
|
|
|
return use_server_io( pipe_end ) ? pipe_end_flush( pipe_end, async ) : 1;
|
2003-05-15 06:22:45 +02:00
|
|
|
}
|
|
|
|
|
2017-03-23 15:41:43 +01:00
|
|
|
static void message_queue_read( struct pipe_end *pipe_end, struct iosb *iosb )
|
|
|
|
{
|
|
|
|
struct pipe_message *message;
|
|
|
|
|
2017-03-26 12:52:39 +02:00
|
|
|
if (pipe_end->flags & NAMED_PIPE_MESSAGE_STREAM_READ)
|
2017-03-23 15:41:43 +01:00
|
|
|
{
|
2017-03-26 12:52:39 +02:00
|
|
|
message = LIST_ENTRY( list_head(&pipe_end->message_queue), struct pipe_message, entry );
|
|
|
|
iosb->out_size = min( iosb->out_size, message->iosb->in_size - message->read_pos );
|
|
|
|
iosb->status = message->read_pos + iosb->out_size < message->iosb->in_size
|
|
|
|
? STATUS_BUFFER_OVERFLOW : STATUS_SUCCESS;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
data_size_t avail = 0;
|
|
|
|
LIST_FOR_EACH_ENTRY( message, &pipe_end->message_queue, struct pipe_message, entry )
|
|
|
|
{
|
|
|
|
avail += message->iosb->in_size - message->read_pos;
|
|
|
|
if (avail >= iosb->out_size) break;
|
|
|
|
}
|
|
|
|
iosb->out_size = min( iosb->out_size, avail );
|
|
|
|
iosb->status = STATUS_SUCCESS;
|
2017-03-23 15:41:43 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
message = LIST_ENTRY( list_head(&pipe_end->message_queue), struct pipe_message, entry );
|
|
|
|
if (!message->read_pos && message->iosb->in_size == iosb->out_size) /* fast path */
|
|
|
|
{
|
|
|
|
iosb->out_data = message->iosb->in_data;
|
|
|
|
message->iosb->in_data = NULL;
|
|
|
|
wake_message( message );
|
|
|
|
free_message( message );
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
data_size_t write_pos = 0, writing;
|
|
|
|
char *buf = NULL;
|
|
|
|
|
|
|
|
if (iosb->out_size && !(buf = iosb->out_data = malloc( iosb->out_size )))
|
|
|
|
{
|
|
|
|
iosb->out_size = 0;
|
|
|
|
iosb->status = STATUS_NO_MEMORY;
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
do
|
|
|
|
{
|
|
|
|
message = LIST_ENTRY( list_head(&pipe_end->message_queue), struct pipe_message, entry );
|
|
|
|
writing = min( iosb->out_size - write_pos, message->iosb->in_size - message->read_pos );
|
|
|
|
if (writing) memcpy( buf + write_pos, (const char *)message->iosb->in_data + message->read_pos, writing );
|
|
|
|
write_pos += writing;
|
|
|
|
message->read_pos += writing;
|
|
|
|
if (message->read_pos == message->iosb->in_size)
|
|
|
|
{
|
|
|
|
wake_message(message);
|
|
|
|
free_message(message);
|
|
|
|
}
|
|
|
|
} while (write_pos < iosb->out_size);
|
|
|
|
}
|
|
|
|
iosb->result = iosb->out_size;
|
|
|
|
}
|
|
|
|
|
2017-03-21 13:03:26 +01:00
|
|
|
/* We call async_terminate in our reselect implementation, which causes recursive reselect.
|
|
|
|
* We're not interested in such reselect calls, so we ignore them. */
|
|
|
|
static int ignore_reselect;
|
|
|
|
|
2017-03-23 15:41:43 +01:00
|
|
|
static void reselect_write_queue( struct pipe_end *pipe_end );
|
|
|
|
|
|
|
|
static void reselect_read_queue( struct pipe_end *pipe_end )
|
|
|
|
{
|
|
|
|
struct async *async;
|
|
|
|
struct iosb *iosb;
|
|
|
|
int read_done = 0;
|
|
|
|
|
|
|
|
ignore_reselect = 1;
|
|
|
|
while (!list_empty( &pipe_end->message_queue) && (async = find_pending_async( pipe_end->read_q )))
|
|
|
|
{
|
|
|
|
iosb = async_get_iosb( async );
|
|
|
|
message_queue_read( pipe_end, iosb );
|
|
|
|
async_terminate( async, iosb->result ? STATUS_ALERTED : iosb->status );
|
|
|
|
release_object( async );
|
|
|
|
release_object( iosb );
|
|
|
|
read_done = 1;
|
|
|
|
}
|
|
|
|
ignore_reselect = 0;
|
|
|
|
|
|
|
|
if (pipe_end->connection)
|
|
|
|
{
|
|
|
|
if (list_empty( &pipe_end->message_queue ))
|
|
|
|
fd_async_wake_up( pipe_end->connection->fd, ASYNC_TYPE_WAIT, STATUS_SUCCESS );
|
|
|
|
else if (read_done)
|
|
|
|
reselect_write_queue( pipe_end->connection );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2017-03-21 13:03:26 +01:00
|
|
|
static void reselect_write_queue( struct pipe_end *pipe_end )
|
|
|
|
{
|
|
|
|
struct pipe_message *message, *next;
|
|
|
|
struct pipe_end *reader = pipe_end->connection;
|
|
|
|
data_size_t avail = 0;
|
|
|
|
|
|
|
|
if (!reader) return;
|
|
|
|
|
|
|
|
ignore_reselect = 1;
|
|
|
|
|
|
|
|
LIST_FOR_EACH_ENTRY_SAFE( message, next, &reader->message_queue, struct pipe_message, entry )
|
|
|
|
{
|
|
|
|
if (message->async && message->iosb->status != STATUS_PENDING)
|
|
|
|
{
|
|
|
|
release_object( message->async );
|
|
|
|
message->async = NULL;
|
|
|
|
free_message( message );
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
avail += message->iosb->in_size - message->read_pos;
|
|
|
|
if (message->iosb->status == STATUS_PENDING && (avail <= reader->buffer_size || !message->iosb->in_size))
|
|
|
|
wake_message( message );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
ignore_reselect = 0;
|
2017-03-23 15:42:03 +01:00
|
|
|
reselect_read_queue( reader );
|
|
|
|
}
|
|
|
|
|
2017-06-26 12:17:36 +02:00
|
|
|
static int pipe_end_read( struct fd *fd, struct async *async, file_pos_t pos )
|
2017-03-23 15:42:03 +01:00
|
|
|
{
|
|
|
|
struct pipe_end *pipe_end = get_fd_user( fd );
|
|
|
|
|
2017-04-12 13:54:35 +02:00
|
|
|
if (!use_server_io( pipe_end )) return no_fd_read( fd, async, pos );
|
2017-03-23 15:42:03 +01:00
|
|
|
|
|
|
|
if (!pipe_end->connection && list_empty( &pipe_end->message_queue ))
|
|
|
|
{
|
|
|
|
set_error( STATUS_PIPE_BROKEN );
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!pipe_end->read_q && !(pipe_end->read_q = create_async_queue( fd ))) return 0;
|
|
|
|
|
|
|
|
queue_async( pipe_end->read_q, async );
|
|
|
|
reselect_read_queue( pipe_end );
|
|
|
|
set_error( STATUS_PENDING );
|
2017-06-26 12:17:36 +02:00
|
|
|
return 1;
|
2017-03-21 13:03:26 +01:00
|
|
|
}
|
|
|
|
|
2017-06-26 12:18:23 +02:00
|
|
|
static int pipe_end_write( struct fd *fd, struct async *async, file_pos_t pos )
|
2017-03-21 13:03:39 +01:00
|
|
|
{
|
|
|
|
struct pipe_end *write_end = get_fd_user( fd );
|
|
|
|
struct pipe_end *read_end = write_end->connection;
|
|
|
|
struct pipe_message *message;
|
|
|
|
|
2017-04-12 13:54:45 +02:00
|
|
|
if (!use_server_io( write_end )) return no_fd_write( fd, async, pos );
|
2017-03-21 13:03:39 +01:00
|
|
|
|
|
|
|
if (!read_end)
|
|
|
|
{
|
|
|
|
set_error( STATUS_PIPE_DISCONNECTED );
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!write_end->write_q && !(write_end->write_q = create_async_queue( fd ))) return 0;
|
|
|
|
|
2017-06-26 12:18:23 +02:00
|
|
|
if (!(message = mem_alloc( sizeof(*message) ))) return 0;
|
2017-03-21 13:03:39 +01:00
|
|
|
message->async = (struct async *)grab_object( async );
|
|
|
|
message->iosb = async_get_iosb( async );
|
|
|
|
message->read_pos = 0;
|
|
|
|
list_add_tail( &read_end->message_queue, &message->entry );
|
|
|
|
|
|
|
|
queue_async( write_end->write_q, async );
|
|
|
|
reselect_write_queue( write_end );
|
|
|
|
set_error( STATUS_PENDING );
|
2017-06-26 12:18:23 +02:00
|
|
|
return 1;
|
2017-03-21 13:03:39 +01:00
|
|
|
}
|
|
|
|
|
2017-03-15 23:25:42 +01:00
|
|
|
static void pipe_end_queue_async( struct fd *fd, struct async *async, int type, int count )
|
|
|
|
{
|
|
|
|
struct pipe_end *pipe_end = get_fd_user( fd );
|
|
|
|
if (use_server_io( pipe_end )) no_fd_queue_async( fd, async, type, count );
|
|
|
|
else default_fd_queue_async( fd, async, type, count );
|
|
|
|
}
|
|
|
|
|
2017-03-21 13:03:26 +01:00
|
|
|
static void pipe_end_reselect_async( struct fd *fd, struct async_queue *queue )
|
|
|
|
{
|
|
|
|
struct pipe_end *pipe_end = get_fd_user( fd );
|
|
|
|
|
|
|
|
if (ignore_reselect) return;
|
|
|
|
|
|
|
|
if (!use_server_io( pipe_end ))
|
|
|
|
default_fd_reselect_async( fd, queue );
|
|
|
|
else if (pipe_end->write_q && pipe_end->write_q == queue)
|
|
|
|
reselect_write_queue( pipe_end );
|
2017-03-23 15:41:43 +01:00
|
|
|
else if (pipe_end->read_q && pipe_end->read_q == queue)
|
|
|
|
reselect_read_queue( pipe_end );
|
2017-03-21 13:03:26 +01:00
|
|
|
}
|
|
|
|
|
2005-06-08 21:11:46 +02:00
|
|
|
static inline int is_overlapped( unsigned int options )
|
2001-10-05 21:45:45 +02:00
|
|
|
{
|
2005-06-08 21:11:46 +02:00
|
|
|
return !(options & (FILE_SYNCHRONOUS_IO_ALERT | FILE_SYNCHRONOUS_IO_NONALERT));
|
|
|
|
}
|
|
|
|
|
2017-04-24 15:18:14 +02:00
|
|
|
static enum server_fd_type pipe_end_get_fd_type( struct fd *fd )
|
2005-06-08 21:11:46 +02:00
|
|
|
{
|
2006-11-20 14:14:04 +01:00
|
|
|
return FD_TYPE_PIPE;
|
2001-10-05 21:45:45 +02:00
|
|
|
}
|
|
|
|
|
2017-06-26 12:20:10 +02:00
|
|
|
static int pipe_end_peek( struct pipe_end *pipe_end )
|
2017-03-21 13:03:55 +01:00
|
|
|
{
|
|
|
|
unsigned reply_size = get_reply_max_size();
|
|
|
|
FILE_PIPE_PEEK_BUFFER *buffer;
|
|
|
|
struct pipe_message *message;
|
|
|
|
data_size_t avail = 0;
|
2017-05-21 15:53:51 +02:00
|
|
|
data_size_t message_length = 0;
|
2017-03-21 13:03:55 +01:00
|
|
|
|
|
|
|
if (!use_server_io( pipe_end ))
|
|
|
|
{
|
|
|
|
set_error( STATUS_NOT_SUPPORTED );
|
2017-06-26 12:20:10 +02:00
|
|
|
return 0;
|
2017-03-21 13:03:55 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
if (reply_size < offsetof( FILE_PIPE_PEEK_BUFFER, Data ))
|
|
|
|
{
|
|
|
|
set_error( STATUS_INFO_LENGTH_MISMATCH );
|
2017-06-26 12:20:10 +02:00
|
|
|
return 0;
|
2017-03-21 13:03:55 +01:00
|
|
|
}
|
|
|
|
reply_size -= offsetof( FILE_PIPE_PEEK_BUFFER, Data );
|
|
|
|
|
|
|
|
LIST_FOR_EACH_ENTRY( message, &pipe_end->message_queue, struct pipe_message, entry )
|
|
|
|
avail += message->iosb->in_size - message->read_pos;
|
|
|
|
|
|
|
|
if (avail)
|
|
|
|
{
|
|
|
|
message = LIST_ENTRY( list_head(&pipe_end->message_queue), struct pipe_message, entry );
|
2017-05-21 15:53:51 +02:00
|
|
|
message_length = message->iosb->in_size - message->read_pos;
|
|
|
|
reply_size = min( reply_size, message_length );
|
2017-03-21 13:03:55 +01:00
|
|
|
}
|
|
|
|
else reply_size = 0;
|
|
|
|
|
2017-06-26 12:20:10 +02:00
|
|
|
if (!(buffer = set_reply_data_size( offsetof( FILE_PIPE_PEEK_BUFFER, Data[reply_size] )))) return 0;
|
2017-03-21 13:03:55 +01:00
|
|
|
buffer->NamedPipeState = 0; /* FIXME */
|
|
|
|
buffer->ReadDataAvailable = avail;
|
|
|
|
buffer->NumberOfMessages = 0; /* FIXME */
|
2017-05-21 15:53:51 +02:00
|
|
|
buffer->MessageLength = message_length;
|
2017-03-21 13:03:55 +01:00
|
|
|
if (reply_size) memcpy( buffer->Data, (const char *)message->iosb->in_data + message->read_pos, reply_size );
|
2017-06-26 12:20:10 +02:00
|
|
|
return 1;
|
2017-03-21 13:03:55 +01:00
|
|
|
}
|
|
|
|
|
2017-06-26 12:20:10 +02:00
|
|
|
static int pipe_server_ioctl( struct fd *fd, ioctl_code_t code, struct async *async )
|
2007-04-16 14:51:29 +02:00
|
|
|
{
|
|
|
|
struct pipe_server *server = get_fd_user( fd );
|
|
|
|
|
|
|
|
switch(code)
|
|
|
|
{
|
2007-04-18 16:26:37 +02:00
|
|
|
case FSCTL_PIPE_LISTEN:
|
|
|
|
switch(server->state)
|
|
|
|
{
|
|
|
|
case ps_idle_server:
|
|
|
|
case ps_wait_connect:
|
2017-02-22 14:50:49 +01:00
|
|
|
if (fd_queue_async( server->ioctl_fd, async, ASYNC_TYPE_WAIT ))
|
2007-04-18 16:26:37 +02:00
|
|
|
{
|
2007-05-03 17:44:05 +02:00
|
|
|
set_server_state( server, ps_wait_open );
|
2007-04-18 16:26:37 +02:00
|
|
|
if (server->pipe->waiters) async_wake_up( server->pipe->waiters, STATUS_SUCCESS );
|
|
|
|
set_error( STATUS_PENDING );
|
2017-06-26 12:20:10 +02:00
|
|
|
return 1;
|
2007-04-18 16:26:37 +02:00
|
|
|
}
|
|
|
|
break;
|
|
|
|
case ps_connected_server:
|
|
|
|
set_error( STATUS_PIPE_CONNECTED );
|
|
|
|
break;
|
|
|
|
case ps_wait_disconnect:
|
|
|
|
set_error( STATUS_NO_DATA_DETECTED );
|
|
|
|
break;
|
|
|
|
case ps_wait_open:
|
|
|
|
set_error( STATUS_INVALID_HANDLE );
|
|
|
|
break;
|
|
|
|
}
|
2007-05-03 17:43:18 +02:00
|
|
|
return 0;
|
2007-04-18 16:26:37 +02:00
|
|
|
|
2007-04-16 14:51:29 +02:00
|
|
|
case FSCTL_PIPE_DISCONNECT:
|
|
|
|
switch(server->state)
|
|
|
|
{
|
|
|
|
case ps_connected_server:
|
|
|
|
assert( server->client );
|
2017-02-22 14:51:06 +01:00
|
|
|
assert( server->client->pipe_end.fd );
|
2007-04-16 14:51:29 +02:00
|
|
|
|
|
|
|
notify_empty( server );
|
|
|
|
|
2016-10-20 21:31:50 +02:00
|
|
|
/* dump the client and server fds - client loses all waiting data */
|
2017-03-15 23:25:25 +01:00
|
|
|
pipe_end_disconnect( &server->pipe_end, STATUS_PIPE_DISCONNECTED );
|
2007-04-16 14:51:29 +02:00
|
|
|
do_disconnect( server );
|
2016-10-20 21:31:50 +02:00
|
|
|
server->client->server = NULL;
|
|
|
|
server->client = NULL;
|
|
|
|
set_server_state( server, ps_wait_connect );
|
2007-04-16 14:51:29 +02:00
|
|
|
break;
|
|
|
|
case ps_wait_disconnect:
|
|
|
|
assert( !server->client );
|
2017-03-15 23:25:25 +01:00
|
|
|
pipe_end_disconnect( &server->pipe_end, STATUS_PIPE_DISCONNECTED );
|
2007-04-16 14:51:29 +02:00
|
|
|
do_disconnect( server );
|
2007-04-18 16:26:37 +02:00
|
|
|
set_server_state( server, ps_wait_connect );
|
2007-04-16 14:51:29 +02:00
|
|
|
break;
|
|
|
|
case ps_idle_server:
|
|
|
|
case ps_wait_open:
|
2007-04-18 16:26:37 +02:00
|
|
|
set_error( STATUS_PIPE_LISTENING );
|
2017-06-26 12:20:10 +02:00
|
|
|
return 0;
|
2007-04-16 14:51:29 +02:00
|
|
|
case ps_wait_connect:
|
2007-04-18 16:26:37 +02:00
|
|
|
set_error( STATUS_PIPE_DISCONNECTED );
|
2017-06-26 12:20:10 +02:00
|
|
|
return 0;
|
2007-04-16 14:51:29 +02:00
|
|
|
}
|
2017-06-26 12:20:10 +02:00
|
|
|
return 1;
|
2007-04-18 16:26:37 +02:00
|
|
|
|
2017-03-21 13:03:55 +01:00
|
|
|
case FSCTL_PIPE_PEEK:
|
2017-06-26 12:20:10 +02:00
|
|
|
return pipe_end_peek( &server->pipe_end );
|
2017-03-21 13:03:55 +01:00
|
|
|
|
|
|
|
default:
|
2017-04-12 13:54:17 +02:00
|
|
|
return default_fd_ioctl( fd, code, async );
|
2017-03-21 13:03:55 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2017-06-26 12:20:10 +02:00
|
|
|
static int pipe_client_ioctl( struct fd *fd, ioctl_code_t code, struct async *async )
|
2017-03-21 13:03:55 +01:00
|
|
|
{
|
|
|
|
struct pipe_client *client = get_fd_user( fd );
|
|
|
|
|
|
|
|
switch(code)
|
|
|
|
{
|
|
|
|
case FSCTL_PIPE_PEEK:
|
2017-06-26 12:20:10 +02:00
|
|
|
return pipe_end_peek( &client->pipe_end );
|
2017-03-21 13:03:55 +01:00
|
|
|
|
2007-04-16 14:51:29 +02:00
|
|
|
default:
|
2017-04-12 13:54:17 +02:00
|
|
|
return default_fd_ioctl( fd, code, async );
|
2007-04-16 14:51:29 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2003-05-15 06:22:45 +02:00
|
|
|
static struct pipe_server *get_pipe_server_obj( struct process *process,
|
|
|
|
obj_handle_t handle, unsigned int access )
|
2001-07-10 21:16:49 +02:00
|
|
|
{
|
2003-05-15 06:22:45 +02:00
|
|
|
struct object *obj;
|
|
|
|
obj = get_handle_obj( process, handle, access, &pipe_server_ops );
|
|
|
|
return (struct pipe_server *) obj;
|
2001-07-10 21:16:49 +02:00
|
|
|
}
|
|
|
|
|
2017-03-15 23:25:31 +01:00
|
|
|
static void init_pipe_end( struct pipe_end *pipe_end, unsigned int pipe_flags, data_size_t buffer_size )
|
2017-02-22 14:51:06 +01:00
|
|
|
{
|
|
|
|
pipe_end->fd = NULL;
|
|
|
|
pipe_end->flags = pipe_flags;
|
2017-03-15 23:25:25 +01:00
|
|
|
pipe_end->connection = NULL;
|
2017-03-15 23:25:31 +01:00
|
|
|
pipe_end->buffer_size = buffer_size;
|
2017-03-23 15:41:43 +01:00
|
|
|
pipe_end->read_q = NULL;
|
2017-03-21 13:03:26 +01:00
|
|
|
pipe_end->write_q = NULL;
|
2017-03-21 13:03:03 +01:00
|
|
|
list_init( &pipe_end->message_queue );
|
2017-02-22 14:51:06 +01:00
|
|
|
}
|
|
|
|
|
2014-08-11 15:35:50 +02:00
|
|
|
static struct pipe_server *create_pipe_server( struct named_pipe *pipe, unsigned int options,
|
|
|
|
unsigned int pipe_flags )
|
2001-07-10 21:16:49 +02:00
|
|
|
{
|
2003-05-15 06:22:45 +02:00
|
|
|
struct pipe_server *server;
|
2001-07-10 21:16:49 +02:00
|
|
|
|
2003-05-15 06:22:45 +02:00
|
|
|
server = alloc_object( &pipe_server_ops );
|
2005-06-10 21:54:46 +02:00
|
|
|
if (!server)
|
2001-07-10 21:16:49 +02:00
|
|
|
return NULL;
|
|
|
|
|
2003-05-15 06:22:45 +02:00
|
|
|
server->pipe = pipe;
|
|
|
|
server->client = NULL;
|
|
|
|
server->flush_poll = NULL;
|
2005-06-08 21:11:46 +02:00
|
|
|
server->options = options;
|
2017-03-15 23:25:31 +01:00
|
|
|
init_pipe_end( &server->pipe_end, pipe_flags, pipe->insize );
|
2001-07-10 21:16:49 +02:00
|
|
|
|
2005-02-03 11:48:23 +01:00
|
|
|
list_add_head( &pipe->servers, &server->entry );
|
2003-05-15 06:22:45 +02:00
|
|
|
grab_object( pipe );
|
2017-02-22 14:51:06 +01:00
|
|
|
if (!(server->ioctl_fd = alloc_pseudo_fd( &pipe_server_fd_ops, &server->pipe_end.obj, options )))
|
2007-04-18 16:26:37 +02:00
|
|
|
{
|
|
|
|
release_object( server );
|
2007-05-08 21:13:14 +02:00
|
|
|
return NULL;
|
2007-04-18 16:26:37 +02:00
|
|
|
}
|
2016-12-02 13:37:59 +01:00
|
|
|
set_fd_signaled( server->ioctl_fd, 1 );
|
2007-04-18 16:26:37 +02:00
|
|
|
set_server_state( server, ps_idle_server );
|
2003-05-15 06:22:45 +02:00
|
|
|
return server;
|
2001-07-10 21:16:49 +02:00
|
|
|
}
|
|
|
|
|
2017-03-15 23:25:31 +01:00
|
|
|
static struct pipe_client *create_pipe_client( unsigned int flags, unsigned int pipe_flags, data_size_t buffer_size )
|
2001-07-10 21:16:49 +02:00
|
|
|
{
|
2003-05-15 06:22:45 +02:00
|
|
|
struct pipe_client *client;
|
2001-07-10 21:16:49 +02:00
|
|
|
|
2003-05-15 06:22:45 +02:00
|
|
|
client = alloc_object( &pipe_client_ops );
|
2005-06-10 21:54:46 +02:00
|
|
|
if (!client)
|
2003-05-15 06:22:45 +02:00
|
|
|
return NULL;
|
|
|
|
|
2006-06-07 21:11:59 +02:00
|
|
|
client->server = NULL;
|
2005-06-08 21:11:46 +02:00
|
|
|
client->flags = flags;
|
2017-03-15 23:25:31 +01:00
|
|
|
init_pipe_end( &client->pipe_end, pipe_flags, buffer_size );
|
2003-05-15 06:22:45 +02:00
|
|
|
|
|
|
|
return client;
|
|
|
|
}
|
|
|
|
|
2007-03-23 14:03:23 +01:00
|
|
|
static struct pipe_server *find_available_server( struct named_pipe *pipe )
|
2003-05-15 06:22:45 +02:00
|
|
|
{
|
2005-02-03 11:48:23 +01:00
|
|
|
struct pipe_server *server;
|
2003-05-15 06:22:45 +02:00
|
|
|
|
2008-02-04 21:18:34 +01:00
|
|
|
/* look for pipe servers that are listening */
|
2005-02-03 11:48:23 +01:00
|
|
|
LIST_FOR_EACH_ENTRY( server, &pipe->servers, struct pipe_server, entry )
|
|
|
|
{
|
2008-02-04 21:18:34 +01:00
|
|
|
if (server->state == ps_wait_open)
|
2005-02-03 11:48:23 +01:00
|
|
|
return (struct pipe_server *)grab_object( server );
|
|
|
|
}
|
2008-02-04 21:18:34 +01:00
|
|
|
|
|
|
|
/* fall back to pipe servers that are idle */
|
|
|
|
LIST_FOR_EACH_ENTRY( server, &pipe->servers, struct pipe_server, entry )
|
|
|
|
{
|
|
|
|
if (server->state == ps_idle_server)
|
|
|
|
return (struct pipe_server *)grab_object( server );
|
|
|
|
}
|
|
|
|
|
2005-02-03 11:48:23 +01:00
|
|
|
return NULL;
|
2001-07-10 21:16:49 +02:00
|
|
|
}
|
|
|
|
|
2016-02-04 13:08:02 +01:00
|
|
|
static int named_pipe_link_name( struct object *obj, struct object_name *name, struct object *parent )
|
|
|
|
{
|
|
|
|
struct named_pipe_device *dev = (struct named_pipe_device *)parent;
|
|
|
|
|
|
|
|
if (parent->ops != &named_pipe_device_ops)
|
|
|
|
{
|
|
|
|
set_error( STATUS_OBJECT_NAME_INVALID );
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
namespace_add( dev->pipes, name );
|
|
|
|
name->parent = grab_object( parent );
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
2007-03-22 16:47:46 +01:00
|
|
|
static struct object *named_pipe_open_file( struct object *obj, unsigned int access,
|
|
|
|
unsigned int sharing, unsigned int options )
|
|
|
|
{
|
|
|
|
struct named_pipe *pipe = (struct named_pipe *)obj;
|
|
|
|
struct pipe_server *server;
|
|
|
|
struct pipe_client *client;
|
2011-09-29 11:20:50 +02:00
|
|
|
unsigned int pipe_sharing;
|
2007-03-22 16:47:46 +01:00
|
|
|
int fds[2];
|
|
|
|
|
2007-03-23 14:03:23 +01:00
|
|
|
if (!(server = find_available_server( pipe )))
|
2007-03-22 16:47:46 +01:00
|
|
|
{
|
|
|
|
set_error( STATUS_PIPE_NOT_AVAILABLE );
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
2011-09-29 11:20:50 +02:00
|
|
|
pipe_sharing = server->pipe->sharing;
|
|
|
|
if (((access & GENERIC_READ) && !(pipe_sharing & FILE_SHARE_READ)) ||
|
|
|
|
((access & GENERIC_WRITE) && !(pipe_sharing & FILE_SHARE_WRITE)))
|
|
|
|
{
|
|
|
|
set_error( STATUS_ACCESS_DENIED );
|
|
|
|
release_object( server );
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
2017-03-15 23:25:31 +01:00
|
|
|
if ((client = create_pipe_client( options, pipe->flags, pipe->outsize )))
|
2007-03-22 16:47:46 +01:00
|
|
|
{
|
2017-03-15 23:25:38 +01:00
|
|
|
if (use_server_io( &server->pipe_end ))
|
|
|
|
{
|
|
|
|
client->pipe_end.fd = alloc_pseudo_fd( &pipe_client_fd_ops, &client->pipe_end.obj, options );
|
|
|
|
if (client->pipe_end.fd)
|
|
|
|
{
|
|
|
|
set_fd_signaled( client->pipe_end.fd, 1 );
|
|
|
|
server->pipe_end.fd = (struct fd *)grab_object( server->ioctl_fd );
|
|
|
|
set_no_fd_status( server->ioctl_fd, STATUS_BAD_DEVICE_TYPE );
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
release_object( client );
|
|
|
|
client = NULL;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else if (!socketpair( PF_UNIX, SOCK_STREAM, 0, fds ))
|
2007-03-22 16:47:46 +01:00
|
|
|
{
|
2017-02-22 14:51:06 +01:00
|
|
|
assert( !server->pipe_end.fd );
|
2007-03-22 16:47:46 +01:00
|
|
|
|
|
|
|
/* for performance reasons, only set nonblocking mode when using
|
|
|
|
* overlapped I/O. Otherwise, we will be doing too much busy
|
|
|
|
* looping */
|
2007-04-18 16:26:37 +02:00
|
|
|
if (is_overlapped( options )) fcntl( fds[1], F_SETFL, O_NONBLOCK );
|
|
|
|
if (is_overlapped( server->options )) fcntl( fds[0], F_SETFL, O_NONBLOCK );
|
2007-03-22 16:47:46 +01:00
|
|
|
|
|
|
|
if (pipe->insize)
|
|
|
|
{
|
|
|
|
setsockopt( fds[0], SOL_SOCKET, SO_RCVBUF, &pipe->insize, sizeof(pipe->insize) );
|
|
|
|
setsockopt( fds[1], SOL_SOCKET, SO_RCVBUF, &pipe->insize, sizeof(pipe->insize) );
|
|
|
|
}
|
|
|
|
if (pipe->outsize)
|
|
|
|
{
|
|
|
|
setsockopt( fds[0], SOL_SOCKET, SO_SNDBUF, &pipe->outsize, sizeof(pipe->outsize) );
|
|
|
|
setsockopt( fds[1], SOL_SOCKET, SO_SNDBUF, &pipe->outsize, sizeof(pipe->outsize) );
|
|
|
|
}
|
|
|
|
|
2017-02-22 14:51:06 +01:00
|
|
|
client->pipe_end.fd = create_anonymous_fd( &pipe_client_fd_ops, fds[1], &client->pipe_end.obj, options );
|
|
|
|
server->pipe_end.fd = create_anonymous_fd( &pipe_server_fd_ops, fds[0], &server->pipe_end.obj, server->options );
|
|
|
|
if (client->pipe_end.fd && server->pipe_end.fd)
|
2007-03-22 16:47:46 +01:00
|
|
|
{
|
2017-02-22 14:51:06 +01:00
|
|
|
fd_copy_completion( server->ioctl_fd, server->pipe_end.fd );
|
2007-03-22 16:47:46 +01:00
|
|
|
}
|
2007-04-18 16:26:37 +02:00
|
|
|
else
|
|
|
|
{
|
|
|
|
release_object( client );
|
|
|
|
client = NULL;
|
|
|
|
}
|
2007-03-22 16:47:46 +01:00
|
|
|
}
|
|
|
|
else
|
2007-04-18 16:26:37 +02:00
|
|
|
{
|
2007-03-22 16:47:46 +01:00
|
|
|
file_set_error();
|
2007-04-18 16:26:37 +02:00
|
|
|
release_object( client );
|
|
|
|
client = NULL;
|
|
|
|
}
|
2017-03-15 23:25:25 +01:00
|
|
|
if (client)
|
|
|
|
{
|
2017-03-15 23:25:38 +01:00
|
|
|
allow_fd_caching( client->pipe_end.fd );
|
|
|
|
allow_fd_caching( server->pipe_end.fd );
|
|
|
|
if (server->state == ps_wait_open)
|
|
|
|
fd_async_wake_up( server->ioctl_fd, ASYNC_TYPE_WAIT, STATUS_SUCCESS );
|
|
|
|
set_server_state( server, ps_connected_server );
|
|
|
|
server->client = client;
|
|
|
|
client->server = server;
|
2017-03-15 23:25:25 +01:00
|
|
|
server->pipe_end.connection = &client->pipe_end;
|
|
|
|
client->pipe_end.connection = &server->pipe_end;
|
|
|
|
}
|
2007-03-22 16:47:46 +01:00
|
|
|
}
|
|
|
|
release_object( server );
|
2017-02-22 14:51:06 +01:00
|
|
|
return &client->pipe_end.obj;
|
2007-03-22 16:47:46 +01:00
|
|
|
}
|
|
|
|
|
2017-06-26 12:20:10 +02:00
|
|
|
static int named_pipe_device_ioctl( struct fd *fd, ioctl_code_t code, struct async *async )
|
2007-04-17 22:07:07 +02:00
|
|
|
{
|
|
|
|
struct named_pipe_device *device = get_fd_user( fd );
|
|
|
|
|
|
|
|
switch(code)
|
|
|
|
{
|
|
|
|
case FSCTL_PIPE_WAIT:
|
|
|
|
{
|
2015-05-05 05:02:59 +02:00
|
|
|
const FILE_PIPE_WAIT_FOR_BUFFER *buffer = get_req_data();
|
|
|
|
data_size_t size = get_req_data_size();
|
2007-04-17 22:07:07 +02:00
|
|
|
struct named_pipe *pipe;
|
|
|
|
struct pipe_server *server;
|
|
|
|
struct unicode_str name;
|
2017-02-15 22:12:28 +01:00
|
|
|
timeout_t when;
|
2007-04-17 22:07:07 +02:00
|
|
|
|
|
|
|
if (size < sizeof(*buffer) ||
|
|
|
|
size < FIELD_OFFSET(FILE_PIPE_WAIT_FOR_BUFFER, Name[buffer->NameLength/sizeof(WCHAR)]))
|
|
|
|
{
|
|
|
|
set_error( STATUS_INVALID_PARAMETER );
|
2007-05-03 17:43:18 +02:00
|
|
|
return 0;
|
2007-04-17 22:07:07 +02:00
|
|
|
}
|
|
|
|
name.str = buffer->Name;
|
|
|
|
name.len = (buffer->NameLength / sizeof(WCHAR)) * sizeof(WCHAR);
|
2016-02-08 06:30:07 +01:00
|
|
|
if (!(pipe = open_named_object( &device->obj, &named_pipe_ops, &name, 0 ))) return 0;
|
|
|
|
|
2007-04-17 22:07:07 +02:00
|
|
|
if (!(server = find_available_server( pipe )))
|
|
|
|
{
|
2017-06-30 15:07:54 +02:00
|
|
|
if (!pipe->waiters && !(pipe->waiters = create_async_queue( fd ))) goto done;
|
2007-05-03 17:44:32 +02:00
|
|
|
|
2017-02-15 22:12:59 +01:00
|
|
|
queue_async( pipe->waiters, async );
|
|
|
|
when = buffer->TimeoutSpecified ? buffer->Timeout.QuadPart : pipe->timeout;
|
|
|
|
async_set_timeout( async, when, STATUS_IO_TIMEOUT );
|
2017-06-26 12:20:10 +02:00
|
|
|
release_object( pipe );
|
2017-02-15 22:12:59 +01:00
|
|
|
set_error( STATUS_PENDING );
|
2017-06-26 12:20:10 +02:00
|
|
|
return 1;
|
2007-04-17 22:07:07 +02:00
|
|
|
}
|
|
|
|
else release_object( server );
|
|
|
|
|
2007-05-03 17:44:32 +02:00
|
|
|
done:
|
2007-04-17 22:07:07 +02:00
|
|
|
release_object( pipe );
|
2017-06-26 12:20:10 +02:00
|
|
|
return 0;
|
2007-04-17 22:07:07 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
default:
|
2017-04-12 13:54:17 +02:00
|
|
|
return default_fd_ioctl( fd, code, async );
|
2007-04-17 22:07:07 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2001-07-10 21:16:49 +02:00
|
|
|
DECL_HANDLER(create_named_pipe)
|
|
|
|
{
|
|
|
|
struct named_pipe *pipe;
|
2003-05-15 06:22:45 +02:00
|
|
|
struct pipe_server *server;
|
2005-11-18 17:31:18 +01:00
|
|
|
struct unicode_str name;
|
2016-02-12 13:00:41 +01:00
|
|
|
struct object *root;
|
2014-11-12 11:25:23 +01:00
|
|
|
const struct security_descriptor *sd;
|
2016-02-01 06:57:37 +01:00
|
|
|
const struct object_attributes *objattr = get_req_object_attributes( &sd, &name, &root );
|
2016-01-15 10:15:31 +01:00
|
|
|
|
|
|
|
if (!objattr) return;
|
2001-07-10 21:16:49 +02:00
|
|
|
|
2011-10-12 14:50:40 +02:00
|
|
|
if (!req->sharing || (req->sharing & ~(FILE_SHARE_READ | FILE_SHARE_WRITE)) ||
|
|
|
|
(!(req->flags & NAMED_PIPE_MESSAGE_STREAM_WRITE) && (req->flags & NAMED_PIPE_MESSAGE_STREAM_READ)))
|
2011-09-26 13:57:38 +02:00
|
|
|
{
|
2016-04-26 03:34:58 +02:00
|
|
|
if (root) release_object( root );
|
2011-09-26 13:57:38 +02:00
|
|
|
set_error( STATUS_INVALID_PARAMETER );
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2016-02-01 06:57:37 +01:00
|
|
|
if (!name.len) /* pipes need a root directory even without a name */
|
|
|
|
{
|
|
|
|
if (!objattr->rootdir)
|
|
|
|
{
|
|
|
|
set_error( STATUS_OBJECT_PATH_SYNTAX_BAD );
|
|
|
|
return;
|
|
|
|
}
|
2016-02-12 13:00:41 +01:00
|
|
|
if (!(root = get_directory_obj( current->process, objattr->rootdir ))) return;
|
2016-02-01 06:57:37 +01:00
|
|
|
}
|
2005-12-05 13:09:35 +01:00
|
|
|
|
2016-02-12 14:57:33 +01:00
|
|
|
pipe = create_named_object( root, &named_pipe_ops, &name, objattr->attributes | OBJ_OPENIF, NULL );
|
2005-12-05 13:09:35 +01:00
|
|
|
|
|
|
|
if (root) release_object( root );
|
|
|
|
if (!pipe) return;
|
2001-07-10 21:16:49 +02:00
|
|
|
|
2005-11-21 17:27:03 +01:00
|
|
|
if (get_error() != STATUS_OBJECT_NAME_EXISTS)
|
2001-08-27 21:03:42 +02:00
|
|
|
{
|
2005-12-05 13:09:35 +01:00
|
|
|
/* initialize it if it didn't already exist */
|
|
|
|
pipe->instances = 0;
|
2007-04-02 20:09:29 +02:00
|
|
|
pipe->waiters = NULL;
|
2005-12-05 13:09:35 +01:00
|
|
|
list_init( &pipe->servers );
|
2001-08-27 21:03:42 +02:00
|
|
|
pipe->insize = req->insize;
|
|
|
|
pipe->outsize = req->outsize;
|
|
|
|
pipe->maxinstances = req->maxinstances;
|
|
|
|
pipe->timeout = req->timeout;
|
2014-08-11 15:35:50 +02:00
|
|
|
pipe->flags = req->flags & NAMED_PIPE_MESSAGE_STREAM_WRITE;
|
2011-09-26 13:57:15 +02:00
|
|
|
pipe->sharing = req->sharing;
|
2001-08-27 21:03:42 +02:00
|
|
|
}
|
2003-05-15 06:22:45 +02:00
|
|
|
else
|
|
|
|
{
|
2005-06-10 21:54:46 +02:00
|
|
|
if (pipe->maxinstances <= pipe->instances)
|
2003-05-15 06:22:45 +02:00
|
|
|
{
|
2005-11-01 22:37:30 +01:00
|
|
|
set_error( STATUS_INSTANCE_NOT_AVAILABLE );
|
2003-05-15 06:22:45 +02:00
|
|
|
release_object( pipe );
|
|
|
|
return;
|
|
|
|
}
|
2011-09-26 13:57:29 +02:00
|
|
|
if (pipe->sharing != req->sharing)
|
2003-05-15 06:22:45 +02:00
|
|
|
{
|
|
|
|
set_error( STATUS_ACCESS_DENIED );
|
|
|
|
release_object( pipe );
|
|
|
|
return;
|
|
|
|
}
|
2006-05-26 12:10:11 +02:00
|
|
|
clear_error(); /* clear the name collision */
|
2003-05-15 06:22:45 +02:00
|
|
|
}
|
2001-08-27 21:03:42 +02:00
|
|
|
|
2014-08-11 15:35:50 +02:00
|
|
|
server = create_pipe_server( pipe, req->options, req->flags );
|
2005-06-10 21:54:46 +02:00
|
|
|
if (server)
|
2001-07-10 21:16:49 +02:00
|
|
|
{
|
2016-01-15 09:53:34 +01:00
|
|
|
reply->handle = alloc_handle( current->process, server, req->access, objattr->attributes );
|
2003-05-15 06:22:45 +02:00
|
|
|
server->pipe->instances++;
|
2017-02-22 14:51:06 +01:00
|
|
|
if (sd) default_set_sd( &server->pipe_end.obj, sd, OWNER_SECURITY_INFORMATION |
|
|
|
|
GROUP_SECURITY_INFORMATION |
|
|
|
|
DACL_SECURITY_INFORMATION |
|
|
|
|
SACL_SECURITY_INFORMATION );
|
2003-05-15 06:22:45 +02:00
|
|
|
release_object( server );
|
2001-07-10 21:16:49 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
release_object( pipe );
|
|
|
|
}
|
|
|
|
|
2001-08-27 21:03:42 +02:00
|
|
|
DECL_HANDLER(get_named_pipe_info)
|
|
|
|
{
|
2003-05-15 06:22:45 +02:00
|
|
|
struct pipe_server *server;
|
2006-05-26 12:10:11 +02:00
|
|
|
struct pipe_client *client = NULL;
|
2001-08-27 21:03:42 +02:00
|
|
|
|
2006-05-26 12:10:11 +02:00
|
|
|
server = get_pipe_server_obj( current->process, req->handle, FILE_READ_ATTRIBUTES );
|
2005-06-10 21:54:46 +02:00
|
|
|
if (!server)
|
2006-05-26 12:10:11 +02:00
|
|
|
{
|
2011-09-29 11:20:42 +02:00
|
|
|
if (get_error() != STATUS_OBJECT_TYPE_MISMATCH)
|
|
|
|
return;
|
|
|
|
|
2006-05-26 12:10:11 +02:00
|
|
|
clear_error();
|
|
|
|
client = (struct pipe_client *)get_handle_obj( current->process, req->handle,
|
2011-09-29 11:20:42 +02:00
|
|
|
0, &pipe_client_ops );
|
2006-05-26 12:10:11 +02:00
|
|
|
if (!client) return;
|
|
|
|
server = client->server;
|
|
|
|
}
|
2001-08-27 21:03:42 +02:00
|
|
|
|
2017-02-22 14:51:06 +01:00
|
|
|
reply->flags = client ? client->pipe_end.flags : server->pipe_end.flags;
|
2015-11-23 07:23:45 +01:00
|
|
|
if (server)
|
|
|
|
{
|
|
|
|
reply->sharing = server->pipe->sharing;
|
|
|
|
reply->maxinstances = server->pipe->maxinstances;
|
|
|
|
reply->instances = server->pipe->instances;
|
|
|
|
reply->insize = server->pipe->insize;
|
|
|
|
reply->outsize = server->pipe->outsize;
|
|
|
|
}
|
2001-08-27 21:03:42 +02:00
|
|
|
|
2006-05-26 12:10:11 +02:00
|
|
|
if (client)
|
|
|
|
release_object(client);
|
|
|
|
else
|
|
|
|
{
|
|
|
|
reply->flags |= NAMED_PIPE_SERVER_END;
|
|
|
|
release_object(server);
|
|
|
|
}
|
2001-08-27 21:03:42 +02:00
|
|
|
}
|
2014-08-11 17:06:49 +02:00
|
|
|
|
|
|
|
DECL_HANDLER(set_named_pipe_info)
|
|
|
|
{
|
|
|
|
struct pipe_server *server;
|
|
|
|
struct pipe_client *client = NULL;
|
|
|
|
|
|
|
|
server = get_pipe_server_obj( current->process, req->handle, FILE_WRITE_ATTRIBUTES );
|
|
|
|
if (!server)
|
|
|
|
{
|
|
|
|
if (get_error() != STATUS_OBJECT_TYPE_MISMATCH)
|
|
|
|
return;
|
|
|
|
|
|
|
|
clear_error();
|
|
|
|
client = (struct pipe_client *)get_handle_obj( current->process, req->handle,
|
|
|
|
0, &pipe_client_ops );
|
|
|
|
if (!client) return;
|
2015-11-23 07:24:07 +01:00
|
|
|
if (!(server = client->server))
|
|
|
|
{
|
|
|
|
release_object( client );
|
|
|
|
return;
|
|
|
|
}
|
2014-08-11 17:06:49 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
if ((req->flags & ~(NAMED_PIPE_MESSAGE_STREAM_READ | NAMED_PIPE_NONBLOCKING_MODE)) ||
|
|
|
|
((req->flags & NAMED_PIPE_MESSAGE_STREAM_READ) && !(server->pipe->flags & NAMED_PIPE_MESSAGE_STREAM_WRITE)))
|
|
|
|
{
|
|
|
|
set_error( STATUS_INVALID_PARAMETER );
|
|
|
|
}
|
|
|
|
else if (client)
|
|
|
|
{
|
2017-02-22 14:51:06 +01:00
|
|
|
client->pipe_end.flags = server->pipe->flags | req->flags;
|
2014-08-11 17:06:49 +02:00
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
2017-02-22 14:51:06 +01:00
|
|
|
server->pipe_end.flags = server->pipe->flags | req->flags;
|
2014-08-11 17:06:49 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
if (client)
|
|
|
|
release_object(client);
|
|
|
|
else
|
|
|
|
release_object(server);
|
|
|
|
}
|