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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2017-03-26 10:52:39 +00:00
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* Copyright 2016 Jacek Caban for CodeWeavers
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2001-08-23 23:29:20 +00:00
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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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2006-05-18 12:49:52 +00:00
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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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 <string.h>
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2003-09-05 23:08:26 +00:00
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#include <stdarg.h>
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2001-07-10 19:16:49 +00:00
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#include <stdio.h>
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#include <stdlib.h>
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2005-11-28 16:32:54 +00:00
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#include "ntstatus.h"
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#define WIN32_NO_STATUS
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2003-09-05 23:08:26 +00:00
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#include "windef.h"
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2005-06-08 19:11:46 +00:00
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#include "winternl.h"
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2007-04-16 12:51:29 +00:00
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#include "winioctl.h"
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2001-07-10 19:16:49 +00:00
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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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2014-11-12 10:25:23 +00:00
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#include "security.h"
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2018-04-11 12:32:56 +00:00
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#include "process.h"
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2001-07-10 19:16:49 +00:00
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struct named_pipe;
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2017-03-21 12:03:03 +00:00
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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 13:51:06 +00:00
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struct pipe_end
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2003-05-15 04:22:45 +00:00
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{
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2005-02-03 10:48:23 +00:00
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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 13:51:06 +00:00
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unsigned int flags; /* pipe flags */
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2018-08-08 20:00:32 +00:00
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unsigned int state; /* pipe state */
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2018-08-16 13:10:33 +00:00
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struct named_pipe *pipe;
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2017-03-15 22:25:25 +00:00
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struct pipe_end *connection; /* the other end of the pipe */
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2018-04-11 12:32:56 +00:00
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process_id_t client_pid; /* process that created the client */
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process_id_t server_pid; /* process that created the server */
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2017-03-15 22:25:31 +00:00
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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 12:03:03 +00:00
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struct list message_queue;
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2017-07-04 13:26:19 +00:00
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struct async_queue read_q; /* read queue */
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struct async_queue write_q; /* write queue */
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2017-02-22 13:51:06 +00:00
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};
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struct pipe_server
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{
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2018-11-23 14:13:24 +00:00
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struct pipe_end pipe_end; /* common header for both pipe ends */
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2019-03-11 16:03:23 +00:00
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struct list entry; /* entry in named pipe listeners list */
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2005-06-08 19:11:46 +00:00
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unsigned int options; /* pipe options */
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2018-08-17 15:41:01 +00:00
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struct async_queue listen_q; /* listen queue */
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2003-05-15 04:22:45 +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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{
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struct object obj; /* object header */
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2018-11-23 14:13:07 +00:00
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int message_mode;
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2011-09-26 11:57:15 +00:00
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unsigned int sharing;
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2001-07-10 19:16:49 +00:00
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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 04:22:45 +00:00
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unsigned int instances;
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2007-04-17 18:08:59 +00:00
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timeout_t timeout;
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2019-03-11 16:03:23 +00:00
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struct list listeners; /* list of servers listening on this pipe */
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2017-07-04 13:26:19 +00:00
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struct async_queue waiters; /* list of clients waiting to connect */
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2001-07-10 19:16:49 +00:00
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};
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2005-12-05 12:09:35 +00:00
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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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struct namespace *pipes; /* named pipe namespace */
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};
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2018-10-29 14:49:47 +00:00
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struct named_pipe_device_file
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{
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struct object obj; /* object header */
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struct fd *fd; /* pseudo-fd for ioctls */
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struct named_pipe_device *device; /* named pipe device */
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};
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2001-07-10 19:16:49 +00:00
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static void named_pipe_dump( struct object *obj, int verbose );
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2005-12-12 15:46:17 +00:00
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static unsigned int named_pipe_map_access( struct object *obj, unsigned int access );
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2020-11-25 18:42:44 +00:00
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static WCHAR *named_pipe_get_full_name( struct object *obj, data_size_t *ret_len );
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2016-02-04 12:08:02 +00:00
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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 15:47:46 +00:00
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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 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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2021-02-04 12:44:18 +00:00
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&no_type, /* type */
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2001-07-10 19:16:49 +00:00
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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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2005-04-24 17:35:52 +00:00
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no_signal, /* signal */
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2001-07-10 19:16:49 +00:00
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no_get_fd, /* get_fd */
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2005-12-12 15:46:17 +00:00
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named_pipe_map_access, /* map_access */
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2007-10-03 12:10:37 +00:00
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default_get_sd, /* get_sd */
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default_set_sd, /* set_sd */
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2020-11-25 18:42:44 +00:00
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named_pipe_get_full_name, /* get_full_name */
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2005-11-22 14:55:42 +00:00
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no_lookup_name, /* lookup_name */
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2016-02-04 12:08:02 +00:00
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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 15:47:46 +00:00
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named_pipe_open_file, /* open_file */
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2019-03-25 13:37:09 +00:00
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no_kernel_obj_list, /* get_kernel_obj_list */
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2005-06-09 15:39:52 +00:00
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no_close_handle, /* close_handle */
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2001-07-10 19:16:49 +00:00
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named_pipe_destroy /* destroy */
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};
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2017-03-15 22:25:42 +00:00
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/* common server and client pipe end functions */
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2018-08-17 15:41:30 +00:00
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static void pipe_end_destroy( struct object *obj );
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2017-04-24 13:18:14 +00:00
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static enum server_fd_type pipe_end_get_fd_type( struct fd *fd );
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2017-10-09 12:28:46 +00:00
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static struct fd *pipe_end_get_fd( struct object *obj );
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2018-08-16 13:10:55 +00:00
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static struct security_descriptor *pipe_end_get_sd( struct object *obj );
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static int pipe_end_set_sd( struct object *obj, const struct security_descriptor *sd,
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unsigned int set_info );
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2020-09-22 14:56:58 +00:00
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static WCHAR *pipe_end_get_full_name( struct object *obj, data_size_t *len );
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2017-06-26 10:17:36 +00:00
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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 10:18:23 +00:00
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static int pipe_end_write( struct fd *fd, struct async *async_data, file_pos_t pos );
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2017-10-04 13:18:53 +00:00
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static int pipe_end_flush( struct fd *fd, struct async *async );
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2021-09-03 00:08:50 +00:00
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static void pipe_end_get_volume_info( struct fd *fd, struct async *async, unsigned int info_class );
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2017-03-21 12:03:26 +00:00
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static void pipe_end_reselect_async( struct fd *fd, struct async_queue *queue );
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2018-10-15 11:40:36 +00:00
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static void pipe_end_get_file_info( struct fd *fd, obj_handle_t handle, unsigned int info_class );
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2017-03-15 22:25:42 +00:00
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2003-05-15 04:22:45 +00:00
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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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2020-11-25 18:42:45 +00:00
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static struct object *pipe_server_lookup_name( struct object *obj, struct unicode_str *name,
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unsigned int attr, struct object *root );
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static struct object *pipe_server_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 04:22:45 +00:00
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static void pipe_server_destroy( struct object *obj);
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2017-06-26 10:20:10 +00:00
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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 04:22:45 +00:00
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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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2021-02-04 12:44:18 +00:00
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&file_type, /* type */
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2003-05-15 04:22:45 +00:00
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pipe_server_dump, /* dump */
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2007-04-04 17:39:29 +00:00
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add_queue, /* add_queue */
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remove_queue, /* remove_queue */
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2003-05-15 04:22:45 +00:00
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default_fd_signaled, /* signaled */
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no_satisfied, /* satisfied */
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2005-04-24 17:35:52 +00:00
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no_signal, /* signal */
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2017-10-09 12:28:46 +00:00
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pipe_end_get_fd, /* get_fd */
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2021-02-05 11:10:44 +00:00
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default_map_access, /* map_access */
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2018-08-16 13:10:55 +00:00
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pipe_end_get_sd, /* get_sd */
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pipe_end_set_sd, /* set_sd */
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2020-09-22 14:56:58 +00:00
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pipe_end_get_full_name, /* get_full_name */
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2020-11-25 18:42:45 +00:00
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pipe_server_lookup_name, /* lookup_name */
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2016-02-04 12:07:19 +00:00
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no_link_name, /* link_name */
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NULL, /* unlink_name */
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2020-11-25 18:42:45 +00:00
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pipe_server_open_file, /* open_file */
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2019-03-25 13:37:09 +00:00
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no_kernel_obj_list, /* get_kernel_obj_list */
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2021-03-23 04:04:30 +00:00
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no_close_handle, /* close_handle */
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2003-05-15 04:22:45 +00:00
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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 15:07:27 +00:00
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default_fd_get_poll_events, /* get_poll_events */
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2003-05-15 04:22:45 +00:00
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default_poll_event, /* poll_event */
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2017-04-24 13:18:14 +00:00
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pipe_end_get_fd_type, /* get_fd_type */
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2017-03-23 14:42:03 +00:00
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pipe_end_read, /* read */
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2017-03-21 12:03:39 +00:00
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pipe_end_write, /* write */
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2017-10-04 13:18:53 +00:00
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pipe_end_flush, /* flush */
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2018-08-16 13:11:08 +00:00
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pipe_end_get_file_info, /* get_file_info */
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2017-10-02 14:42:24 +00:00
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pipe_end_get_volume_info, /* get_volume_info */
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2007-04-16 12:51:29 +00:00
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pipe_server_ioctl, /* ioctl */
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2017-10-05 12:29:54 +00:00
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no_fd_queue_async, /* queue_async */
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2017-03-21 12:03:26 +00:00
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pipe_end_reselect_async /* reselect_async */
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2003-05-15 04:22:45 +00:00
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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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2017-06-26 10:20:10 +00:00
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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 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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2018-11-23 14:13:24 +00:00
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sizeof(struct pipe_end), /* size */
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2021-02-04 12:44:18 +00:00
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&file_type, /* type */
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2003-05-15 04:22:45 +00:00
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pipe_client_dump, /* dump */
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2007-04-04 17:39:29 +00:00
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add_queue, /* add_queue */
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remove_queue, /* remove_queue */
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2017-11-28 16:35:34 +00:00
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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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2005-04-24 17:35:52 +00:00
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no_signal, /* signal */
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2017-10-09 12:28:46 +00:00
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pipe_end_get_fd, /* get_fd */
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2021-02-05 11:10:44 +00:00
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default_map_access, /* map_access */
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2018-08-16 13:10:55 +00:00
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pipe_end_get_sd, /* get_sd */
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pipe_end_set_sd, /* set_sd */
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2020-09-22 14:56:58 +00:00
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pipe_end_get_full_name, /* get_full_name */
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2005-11-22 14:55:42 +00:00
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no_lookup_name, /* lookup_name */
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2016-02-04 12:07:19 +00:00
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no_link_name, /* link_name */
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NULL, /* unlink_name */
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2007-03-22 10:44:29 +00:00
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no_open_file, /* open_file */
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2019-03-25 13:37:09 +00:00
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no_kernel_obj_list, /* get_kernel_obj_list */
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2021-03-23 04:04:30 +00:00
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no_close_handle, /* close_handle */
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2018-08-17 15:41:30 +00:00
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pipe_end_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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{
|
2005-06-08 19:11:46 +00:00
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default_fd_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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2017-04-24 13:18:14 +00:00
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pipe_end_get_fd_type, /* get_fd_type */
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2017-03-23 14:42:03 +00:00
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pipe_end_read, /* read */
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2017-03-21 12:03:39 +00:00
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pipe_end_write, /* write */
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2017-10-04 13:18:53 +00:00
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pipe_end_flush, /* flush */
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2018-08-16 13:11:08 +00:00
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pipe_end_get_file_info, /* get_file_info */
|
2017-10-02 14:42:24 +00:00
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pipe_end_get_volume_info, /* get_volume_info */
|
2017-03-21 12:03:55 +00:00
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pipe_client_ioctl, /* ioctl */
|
2017-10-05 12:29:54 +00:00
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no_fd_queue_async, /* queue_async */
|
2017-03-21 12:03:26 +00:00
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pipe_end_reselect_async /* reselect_async */
|
2001-07-10 19:16:49 +00:00
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};
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2005-12-05 12:09:35 +00:00
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|
|
static void named_pipe_device_dump( struct object *obj, int verbose );
|
|
|
|
static struct object *named_pipe_device_lookup_name( struct object *obj,
|
2020-11-25 18:42:42 +00:00
|
|
|
struct unicode_str *name, unsigned int attr, struct object *root );
|
2007-03-22 10:52:40 +00:00
|
|
|
static struct object *named_pipe_device_open_file( struct object *obj, unsigned int access,
|
|
|
|
unsigned int sharing, unsigned int options );
|
2005-12-05 12:09:35 +00:00
|
|
|
static void named_pipe_device_destroy( struct object *obj );
|
|
|
|
|
|
|
|
static const struct object_ops named_pipe_device_ops =
|
|
|
|
{
|
|
|
|
sizeof(struct named_pipe_device), /* size */
|
2021-02-04 12:44:18 +00:00
|
|
|
&device_type, /* type */
|
2005-12-05 12:09:35 +00:00
|
|
|
named_pipe_device_dump, /* dump */
|
|
|
|
no_add_queue, /* add_queue */
|
|
|
|
NULL, /* remove_queue */
|
|
|
|
NULL, /* signaled */
|
|
|
|
no_satisfied, /* satisfied */
|
|
|
|
no_signal, /* signal */
|
2018-10-29 14:49:47 +00:00
|
|
|
no_get_fd, /* get_fd */
|
2021-02-05 11:10:44 +00:00
|
|
|
default_map_access, /* map_access */
|
2007-10-03 12:10:37 +00:00
|
|
|
default_get_sd, /* get_sd */
|
|
|
|
default_set_sd, /* set_sd */
|
2020-09-22 14:52:31 +00:00
|
|
|
default_get_full_name, /* get_full_name */
|
2005-12-05 12:09:35 +00:00
|
|
|
named_pipe_device_lookup_name, /* lookup_name */
|
2016-02-04 12:08:02 +00:00
|
|
|
directory_link_name, /* link_name */
|
|
|
|
default_unlink_name, /* unlink_name */
|
2007-03-22 10:52:40 +00:00
|
|
|
named_pipe_device_open_file, /* open_file */
|
2019-03-25 13:37:09 +00:00
|
|
|
no_kernel_obj_list, /* get_kernel_obj_list */
|
2018-10-29 14:49:47 +00:00
|
|
|
no_close_handle, /* close_handle */
|
2005-12-05 12:09:35 +00:00
|
|
|
named_pipe_device_destroy /* destroy */
|
|
|
|
};
|
|
|
|
|
2018-10-29 14:49:47 +00:00
|
|
|
static void named_pipe_device_file_dump( struct object *obj, int verbose );
|
|
|
|
static struct fd *named_pipe_device_file_get_fd( struct object *obj );
|
2020-09-22 14:56:58 +00:00
|
|
|
static WCHAR *named_pipe_device_file_get_full_name( struct object *obj, data_size_t *len );
|
2018-10-29 14:49:47 +00:00
|
|
|
static int named_pipe_device_ioctl( struct fd *fd, ioctl_code_t code, struct async *async );
|
|
|
|
static enum server_fd_type named_pipe_device_file_get_fd_type( struct fd *fd );
|
|
|
|
static void named_pipe_device_file_destroy( struct object *obj );
|
|
|
|
|
|
|
|
static const struct object_ops named_pipe_device_file_ops =
|
|
|
|
{
|
|
|
|
sizeof(struct named_pipe_device_file), /* size */
|
2021-02-04 12:44:18 +00:00
|
|
|
&file_type, /* type */
|
2018-10-29 14:49:47 +00:00
|
|
|
named_pipe_device_file_dump, /* dump */
|
|
|
|
add_queue, /* add_queue */
|
|
|
|
remove_queue, /* remove_queue */
|
|
|
|
default_fd_signaled, /* signaled */
|
|
|
|
no_satisfied, /* satisfied */
|
|
|
|
no_signal, /* signal */
|
|
|
|
named_pipe_device_file_get_fd, /* get_fd */
|
2021-02-05 11:10:44 +00:00
|
|
|
default_map_access, /* map_access */
|
2018-10-29 14:49:47 +00:00
|
|
|
default_get_sd, /* get_sd */
|
|
|
|
default_set_sd, /* set_sd */
|
2020-09-22 14:56:58 +00:00
|
|
|
named_pipe_device_file_get_full_name, /* get_full_name */
|
2018-10-29 14:49:47 +00:00
|
|
|
no_lookup_name, /* lookup_name */
|
|
|
|
no_link_name, /* link_name */
|
|
|
|
NULL, /* unlink_name */
|
|
|
|
no_open_file, /* open_file */
|
2019-03-25 13:37:09 +00:00
|
|
|
no_kernel_obj_list, /* get_kernel_obj_list */
|
2021-03-23 04:04:30 +00:00
|
|
|
no_close_handle, /* close_handle */
|
2018-10-29 14:49:47 +00:00
|
|
|
named_pipe_device_file_destroy /* destroy */
|
|
|
|
};
|
|
|
|
|
2005-12-12 13:30:06 +00:00
|
|
|
static const struct fd_ops named_pipe_device_fd_ops =
|
|
|
|
{
|
2018-10-29 14:49:47 +00:00
|
|
|
default_fd_get_poll_events, /* get_poll_events */
|
|
|
|
default_poll_event, /* poll_event */
|
|
|
|
named_pipe_device_file_get_fd_type, /* get_fd_type */
|
|
|
|
no_fd_read, /* read */
|
|
|
|
no_fd_write, /* write */
|
|
|
|
no_fd_flush, /* flush */
|
|
|
|
default_fd_get_file_info, /* get_file_info */
|
|
|
|
no_fd_get_volume_info, /* get_volume_info */
|
|
|
|
named_pipe_device_ioctl, /* ioctl */
|
|
|
|
default_fd_queue_async, /* queue_async */
|
|
|
|
default_fd_reselect_async /* reselect_async */
|
2005-12-12 13:30:06 +00:00
|
|
|
};
|
|
|
|
|
2001-07-10 19:16:49 +00:00
|
|
|
static void named_pipe_dump( struct object *obj, int verbose )
|
|
|
|
{
|
2016-01-21 12:08:56 +00:00
|
|
|
fputs( "Named pipe\n", stderr );
|
2001-07-10 19:16:49 +00:00
|
|
|
}
|
|
|
|
|
2005-12-12 15:46:17 +00:00
|
|
|
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);
|
|
|
|
}
|
|
|
|
|
2020-11-25 18:42:44 +00:00
|
|
|
static WCHAR *named_pipe_get_full_name( struct object *obj, data_size_t *ret_len )
|
|
|
|
{
|
|
|
|
WCHAR *ret;
|
|
|
|
|
|
|
|
if (!(ret = default_get_full_name( obj, ret_len )))
|
|
|
|
set_error( STATUS_OBJECT_PATH_INVALID );
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2003-05-15 04:22:45 +00:00
|
|
|
static void pipe_server_dump( struct object *obj, int verbose )
|
|
|
|
{
|
|
|
|
struct pipe_server *server = (struct pipe_server *) obj;
|
|
|
|
assert( obj->ops == &pipe_server_ops );
|
2018-08-17 15:41:17 +00:00
|
|
|
fprintf( stderr, "Named pipe server pipe=%p state=%d\n", server->pipe_end.pipe,
|
|
|
|
server->pipe_end.state );
|
2003-05-15 04:22:45 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static void pipe_client_dump( struct object *obj, int verbose )
|
2001-07-10 19:16:49 +00:00
|
|
|
{
|
2018-11-23 14:13:24 +00:00
|
|
|
struct pipe_end *client = (struct pipe_end *) obj;
|
2005-02-03 10:48:23 +00:00
|
|
|
assert( obj->ops == &pipe_client_ops );
|
2018-11-23 14:13:24 +00:00
|
|
|
fprintf( stderr, "Named pipe client server=%p\n", client->connection );
|
2001-07-10 19:16:49 +00:00
|
|
|
}
|
|
|
|
|
2005-02-03 10:48:23 +00:00
|
|
|
static void named_pipe_destroy( struct object *obj)
|
|
|
|
{
|
|
|
|
struct named_pipe *pipe = (struct named_pipe *) obj;
|
|
|
|
|
2019-03-11 16:03:23 +00:00
|
|
|
assert( list_empty( &pipe->listeners ) );
|
2005-02-03 10:48:23 +00:00
|
|
|
assert( !pipe->instances );
|
2017-07-04 13:26:19 +00:00
|
|
|
free_async_queue( &pipe->waiters );
|
2003-05-15 04:22:45 +00:00
|
|
|
}
|
|
|
|
|
2017-10-09 12:28:46 +00:00
|
|
|
static struct fd *pipe_end_get_fd( struct object *obj )
|
2003-05-15 04:22:45 +00:00
|
|
|
{
|
2017-10-09 12:28:46 +00:00
|
|
|
struct pipe_end *pipe_end = (struct pipe_end *) obj;
|
|
|
|
return (struct fd *) grab_object( pipe_end->fd );
|
2003-02-19 00:33:32 +00:00
|
|
|
}
|
|
|
|
|
2018-03-28 20:46:32 +00:00
|
|
|
static struct pipe_message *queue_message( struct pipe_end *pipe_end, struct iosb *iosb )
|
|
|
|
{
|
|
|
|
struct pipe_message *message;
|
|
|
|
|
|
|
|
if (!(message = mem_alloc( sizeof(*message) ))) return NULL;
|
|
|
|
message->iosb = (struct iosb *)grab_object( iosb );
|
|
|
|
message->async = NULL;
|
|
|
|
message->read_pos = 0;
|
|
|
|
list_add_tail( &pipe_end->message_queue, &message->entry );
|
|
|
|
return message;
|
|
|
|
}
|
|
|
|
|
2019-10-16 12:50:34 +00:00
|
|
|
static void wake_message( struct pipe_message *message, data_size_t result )
|
2017-03-21 12:03:26 +00:00
|
|
|
{
|
|
|
|
struct async *async = message->async;
|
|
|
|
|
|
|
|
message->async = NULL;
|
2018-03-28 20:46:27 +00:00
|
|
|
if (!async) return;
|
|
|
|
|
2021-09-01 22:28:38 +00:00
|
|
|
async_request_complete( async, STATUS_SUCCESS, result, 0, NULL );
|
2018-03-28 20:46:27 +00:00
|
|
|
release_object( async );
|
2017-03-21 12:03:26 +00:00
|
|
|
}
|
|
|
|
|
2017-03-21 12:03:03 +00:00
|
|
|
static void free_message( struct pipe_message *message )
|
|
|
|
{
|
|
|
|
list_remove( &message->entry );
|
|
|
|
if (message->iosb) release_object( message->iosb );
|
|
|
|
free( message );
|
|
|
|
}
|
|
|
|
|
2017-03-15 22:25:25 +00:00
|
|
|
static void pipe_end_disconnect( struct pipe_end *pipe_end, unsigned int status )
|
|
|
|
{
|
|
|
|
struct pipe_end *connection = pipe_end->connection;
|
2017-10-05 12:30:12 +00:00
|
|
|
struct pipe_message *message, *next;
|
|
|
|
struct async *async;
|
2017-03-15 22:25:25 +00:00
|
|
|
|
|
|
|
pipe_end->connection = NULL;
|
|
|
|
|
2018-08-08 20:00:32 +00:00
|
|
|
pipe_end->state = status == STATUS_PIPE_DISCONNECTED
|
|
|
|
? FILE_PIPE_DISCONNECTED_STATE : FILE_PIPE_CLOSING_STATE;
|
2017-11-28 16:35:34 +00:00
|
|
|
fd_async_wake_up( pipe_end->fd, ASYNC_TYPE_WAIT, status );
|
2017-10-05 12:30:12 +00:00
|
|
|
async_wake_up( &pipe_end->read_q, status );
|
|
|
|
LIST_FOR_EACH_ENTRY_SAFE( message, next, &pipe_end->message_queue, struct pipe_message, entry )
|
2017-03-21 12:03:12 +00:00
|
|
|
{
|
2017-10-05 12:30:12 +00:00
|
|
|
async = message->async;
|
|
|
|
if (async || status == STATUS_PIPE_DISCONNECTED) free_message( message );
|
|
|
|
if (!async) continue;
|
|
|
|
async_terminate( async, status );
|
|
|
|
release_object( async );
|
2017-03-21 12:03:12 +00:00
|
|
|
}
|
2017-10-05 12:30:12 +00:00
|
|
|
if (status == STATUS_PIPE_DISCONNECTED) set_fd_signaled( pipe_end->fd, 0 );
|
|
|
|
|
2017-03-15 22:25:25 +00:00
|
|
|
if (connection)
|
|
|
|
{
|
|
|
|
connection->connection = NULL;
|
|
|
|
pipe_end_disconnect( connection, status );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2018-08-17 15:41:30 +00:00
|
|
|
static void pipe_end_destroy( struct object *obj )
|
2017-03-21 12:03:03 +00:00
|
|
|
{
|
2018-08-17 15:41:30 +00:00
|
|
|
struct pipe_end *pipe_end = (struct pipe_end *)obj;
|
2017-03-21 12:03:03 +00:00
|
|
|
struct pipe_message *message;
|
|
|
|
|
2018-08-17 15:41:30 +00:00
|
|
|
pipe_end_disconnect( pipe_end, STATUS_PIPE_BROKEN );
|
|
|
|
|
2017-03-21 12:03:03 +00:00
|
|
|
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 12:03:26 +00:00
|
|
|
|
2017-07-04 13:26:19 +00:00
|
|
|
free_async_queue( &pipe_end->read_q );
|
|
|
|
free_async_queue( &pipe_end->write_q );
|
2017-10-09 12:28:46 +00:00
|
|
|
if (pipe_end->fd) release_object( pipe_end->fd );
|
2018-08-16 13:10:33 +00:00
|
|
|
if (pipe_end->pipe) release_object( pipe_end->pipe );
|
2017-03-21 12:03:03 +00:00
|
|
|
}
|
|
|
|
|
2020-11-25 18:42:45 +00:00
|
|
|
static struct object *pipe_server_lookup_name( struct object *obj, struct unicode_str *name,
|
|
|
|
unsigned int attr, struct object *root )
|
|
|
|
{
|
|
|
|
if (name && name->len)
|
|
|
|
set_error( STATUS_OBJECT_NAME_INVALID );
|
|
|
|
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct object *pipe_server_open_file( struct object *obj, unsigned int access,
|
|
|
|
unsigned int sharing, unsigned int options )
|
|
|
|
{
|
|
|
|
struct pipe_server *server = (struct pipe_server *)obj;
|
|
|
|
|
|
|
|
return server->pipe_end.pipe->obj.ops->open_file( &server->pipe_end.pipe->obj, access, sharing, options );
|
|
|
|
}
|
|
|
|
|
2018-08-17 15:41:30 +00:00
|
|
|
static void pipe_server_destroy( struct object *obj )
|
2003-05-15 04:22:45 +00:00
|
|
|
{
|
|
|
|
struct pipe_server *server = (struct pipe_server *)obj;
|
2018-08-16 13:10:33 +00:00
|
|
|
struct named_pipe *pipe = server->pipe_end.pipe;
|
2003-05-15 04:22:45 +00:00
|
|
|
|
|
|
|
assert( obj->ops == &pipe_server_ops );
|
|
|
|
|
2018-08-16 13:10:33 +00:00
|
|
|
assert( pipe->instances );
|
|
|
|
if (!--pipe->instances) unlink_named_object( &pipe->obj );
|
2019-03-11 16:03:23 +00:00
|
|
|
if (server->pipe_end.state == FILE_PIPE_LISTENING_STATE)
|
|
|
|
list_remove( &server->entry );
|
2018-08-16 13:10:33 +00:00
|
|
|
|
2018-08-17 15:41:01 +00:00
|
|
|
free_async_queue( &server->listen_q );
|
2018-08-17 15:41:30 +00:00
|
|
|
pipe_end_destroy( obj );
|
2003-02-19 00:33:32 +00:00
|
|
|
}
|
|
|
|
|
2005-12-05 12:09:35 +00:00
|
|
|
static void named_pipe_device_dump( struct object *obj, int verbose )
|
|
|
|
{
|
2016-01-21 12:08:56 +00:00
|
|
|
fputs( "Named pipe device\n", stderr );
|
2005-12-05 12:09:35 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static struct object *named_pipe_device_lookup_name( struct object *obj, struct unicode_str *name,
|
2020-11-25 18:42:42 +00:00
|
|
|
unsigned int attr, struct object *root )
|
2005-12-05 12:09:35 +00:00
|
|
|
{
|
|
|
|
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 11:16:27 +00:00
|
|
|
if (!name) return NULL; /* open the device itself */
|
|
|
|
|
2005-12-05 12:09:35 +00:00
|
|
|
if ((found = find_object( device->pipes, name, attr | OBJ_CASE_INSENSITIVE )))
|
|
|
|
name->len = 0;
|
|
|
|
|
|
|
|
return found;
|
|
|
|
}
|
|
|
|
|
2007-03-22 10:52:40 +00:00
|
|
|
static struct object *named_pipe_device_open_file( struct object *obj, unsigned int access,
|
|
|
|
unsigned int sharing, unsigned int options )
|
|
|
|
{
|
2018-10-29 14:49:47 +00:00
|
|
|
struct named_pipe_device_file *file;
|
|
|
|
|
|
|
|
if (!(file = alloc_object( &named_pipe_device_file_ops ))) return NULL;
|
|
|
|
file->device = (struct named_pipe_device *)grab_object( obj );
|
|
|
|
if (!(file->fd = alloc_pseudo_fd( &named_pipe_device_fd_ops, obj, options )))
|
|
|
|
{
|
|
|
|
release_object( file );
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
allow_fd_caching( file->fd );
|
|
|
|
return &file->obj;
|
2007-03-22 10:52:40 +00:00
|
|
|
}
|
|
|
|
|
2005-12-05 12:09:35 +00:00
|
|
|
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 );
|
2006-10-09 21:34:36 +00:00
|
|
|
free( device->pipes );
|
2005-12-05 12:09:35 +00:00
|
|
|
}
|
|
|
|
|
2020-09-23 09:32:47 +00:00
|
|
|
struct object *create_named_pipe_device( struct object *root, const struct unicode_str *name,
|
|
|
|
unsigned int attr, const struct security_descriptor *sd )
|
2005-12-05 12:09:35 +00:00
|
|
|
{
|
|
|
|
struct named_pipe_device *dev;
|
|
|
|
|
2020-09-23 09:32:47 +00:00
|
|
|
if ((dev = create_named_object( root, &named_pipe_device_ops, name, attr, sd )) &&
|
2005-12-05 12:09:35 +00:00
|
|
|
get_error() != STATUS_OBJECT_NAME_EXISTS)
|
|
|
|
{
|
2005-12-12 13:30:06 +00:00
|
|
|
dev->pipes = NULL;
|
2018-10-29 14:49:47 +00:00
|
|
|
if (!(dev->pipes = create_namespace( 7 )))
|
2005-12-05 12:09:35 +00:00
|
|
|
{
|
|
|
|
release_object( dev );
|
|
|
|
dev = NULL;
|
|
|
|
}
|
|
|
|
}
|
2016-07-18 06:34:08 +00:00
|
|
|
return &dev->obj;
|
2005-12-05 12:09:35 +00:00
|
|
|
}
|
|
|
|
|
2018-10-29 14:49:47 +00:00
|
|
|
static void named_pipe_device_file_dump( struct object *obj, int verbose )
|
|
|
|
{
|
|
|
|
struct named_pipe_device_file *file = (struct named_pipe_device_file *)obj;
|
|
|
|
|
|
|
|
fprintf( stderr, "File on named pipe device %p\n", file->device );
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct fd *named_pipe_device_file_get_fd( struct object *obj )
|
|
|
|
{
|
|
|
|
struct named_pipe_device_file *file = (struct named_pipe_device_file *)obj;
|
|
|
|
return (struct fd *)grab_object( file->fd );
|
|
|
|
}
|
|
|
|
|
2020-09-22 14:56:58 +00:00
|
|
|
static WCHAR *named_pipe_device_file_get_full_name( struct object *obj, data_size_t *len )
|
|
|
|
{
|
|
|
|
struct named_pipe_device_file *file = (struct named_pipe_device_file *)obj;
|
|
|
|
return file->device->obj.ops->get_full_name( &file->device->obj, len );
|
|
|
|
}
|
|
|
|
|
2018-10-29 14:49:47 +00:00
|
|
|
static enum server_fd_type named_pipe_device_file_get_fd_type( struct fd *fd )
|
|
|
|
{
|
|
|
|
return FD_TYPE_DEVICE;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void named_pipe_device_file_destroy( struct object *obj )
|
|
|
|
{
|
|
|
|
struct named_pipe_device_file *file = (struct named_pipe_device_file*)obj;
|
|
|
|
assert( obj->ops == &named_pipe_device_file_ops );
|
|
|
|
if (file->fd) release_object( file->fd );
|
|
|
|
release_object( file->device );
|
|
|
|
}
|
|
|
|
|
2017-10-04 13:18:53 +00:00
|
|
|
static int pipe_end_flush( struct fd *fd, struct async *async )
|
2003-05-15 04:22:45 +00:00
|
|
|
{
|
2017-10-04 13:18:53 +00:00
|
|
|
struct pipe_end *pipe_end = get_fd_user( fd );
|
2003-05-15 04:22:45 +00:00
|
|
|
|
2018-10-20 17:18:37 +00:00
|
|
|
if (!pipe_end->pipe)
|
|
|
|
{
|
|
|
|
set_error( STATUS_PIPE_DISCONNECTED );
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2017-10-04 13:18:53 +00:00
|
|
|
if (pipe_end->connection && !list_empty( &pipe_end->connection->message_queue ))
|
2004-07-15 18:59:58 +00:00
|
|
|
{
|
2017-10-04 13:18:53 +00:00
|
|
|
fd_queue_async( pipe_end->fd, async, ASYNC_TYPE_WAIT );
|
|
|
|
set_error( STATUS_PENDING );
|
2004-07-15 18:59:58 +00:00
|
|
|
}
|
2017-06-26 10:20:20 +00:00
|
|
|
return 1;
|
2017-02-22 13:51:17 +00:00
|
|
|
}
|
|
|
|
|
2018-10-15 11:40:36 +00:00
|
|
|
static void pipe_end_get_file_info( struct fd *fd, obj_handle_t handle, unsigned int info_class )
|
2017-12-21 15:12:12 +00:00
|
|
|
{
|
2018-08-16 13:11:08 +00:00
|
|
|
struct pipe_end *pipe_end = get_fd_user( fd );
|
|
|
|
struct named_pipe *pipe = pipe_end->pipe;
|
|
|
|
|
2017-12-21 15:12:12 +00:00
|
|
|
switch (info_class)
|
|
|
|
{
|
|
|
|
case FileNameInformation:
|
|
|
|
{
|
|
|
|
FILE_NAME_INFORMATION *name_info;
|
|
|
|
data_size_t name_len, reply_size;
|
|
|
|
const WCHAR *name;
|
|
|
|
|
|
|
|
if (get_reply_max_size() < sizeof(*name_info))
|
|
|
|
{
|
|
|
|
set_error( STATUS_INFO_LENGTH_MISMATCH );
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2018-08-16 13:10:33 +00:00
|
|
|
/* FIXME: We should be able to return on unlinked pipe */
|
2018-10-23 15:45:06 +00:00
|
|
|
if (!pipe || !(name = get_object_name( &pipe->obj, &name_len )))
|
2018-08-16 13:10:33 +00:00
|
|
|
{
|
|
|
|
set_error( STATUS_PIPE_DISCONNECTED );
|
|
|
|
return;
|
|
|
|
}
|
2018-10-23 15:45:06 +00:00
|
|
|
|
2017-12-21 15:12:12 +00:00
|
|
|
reply_size = offsetof( FILE_NAME_INFORMATION, FileName[name_len/sizeof(WCHAR) + 1] );
|
|
|
|
if (reply_size > get_reply_max_size())
|
|
|
|
{
|
|
|
|
reply_size = get_reply_max_size();
|
|
|
|
set_error( STATUS_BUFFER_OVERFLOW );
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!(name_info = set_reply_data_size( reply_size ))) return;
|
|
|
|
name_info->FileNameLength = name_len + sizeof(WCHAR);
|
|
|
|
name_info->FileName[0] = '\\';
|
|
|
|
reply_size -= offsetof( FILE_NAME_INFORMATION, FileName[1] );
|
|
|
|
if (reply_size) memcpy( &name_info->FileName[1], name, reply_size );
|
|
|
|
break;
|
|
|
|
}
|
2018-10-15 11:41:00 +00:00
|
|
|
case FilePipeInformation:
|
|
|
|
{
|
|
|
|
FILE_PIPE_INFORMATION *pipe_info;
|
|
|
|
|
|
|
|
if (!(get_handle_access( current->process, handle) & FILE_READ_ATTRIBUTES))
|
|
|
|
{
|
|
|
|
set_error( STATUS_ACCESS_DENIED );
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (get_reply_max_size() < sizeof(*pipe_info))
|
|
|
|
{
|
|
|
|
set_error( STATUS_INFO_LENGTH_MISMATCH );
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2018-10-23 15:45:06 +00:00
|
|
|
if (!pipe)
|
|
|
|
{
|
|
|
|
set_error( STATUS_PIPE_DISCONNECTED );
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2018-10-15 11:41:00 +00:00
|
|
|
if (!(pipe_info = set_reply_data_size( sizeof(*pipe_info) ))) return;
|
|
|
|
pipe_info->ReadMode = (pipe_end->flags & NAMED_PIPE_MESSAGE_STREAM_READ)
|
|
|
|
? FILE_PIPE_MESSAGE_MODE : FILE_PIPE_BYTE_STREAM_MODE;
|
|
|
|
pipe_info->CompletionMode = (pipe_end->flags & NAMED_PIPE_NONBLOCKING_MODE)
|
|
|
|
? FILE_PIPE_COMPLETE_OPERATION : FILE_PIPE_QUEUE_OPERATION;
|
|
|
|
break;
|
|
|
|
}
|
2018-10-15 11:40:36 +00:00
|
|
|
case FilePipeLocalInformation:
|
|
|
|
{
|
|
|
|
FILE_PIPE_LOCAL_INFORMATION *pipe_info;
|
|
|
|
|
|
|
|
if (!(get_handle_access( current->process, handle) & FILE_READ_ATTRIBUTES))
|
|
|
|
{
|
|
|
|
set_error( STATUS_ACCESS_DENIED );
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (get_reply_max_size() < sizeof(*pipe_info))
|
|
|
|
{
|
|
|
|
set_error( STATUS_INFO_LENGTH_MISMATCH );
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2018-10-23 15:45:06 +00:00
|
|
|
if (!pipe)
|
|
|
|
{
|
|
|
|
set_error( STATUS_PIPE_DISCONNECTED );
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2018-10-15 11:40:36 +00:00
|
|
|
if (!(pipe_info = set_reply_data_size( sizeof(*pipe_info) ))) return;
|
2018-11-23 14:13:07 +00:00
|
|
|
pipe_info->NamedPipeType = pipe->message_mode;
|
2018-10-15 11:40:36 +00:00
|
|
|
switch (pipe->sharing)
|
|
|
|
{
|
|
|
|
case FILE_SHARE_READ:
|
|
|
|
pipe_info->NamedPipeConfiguration = FILE_PIPE_OUTBOUND;
|
|
|
|
break;
|
|
|
|
case FILE_SHARE_WRITE:
|
|
|
|
pipe_info->NamedPipeConfiguration = FILE_PIPE_INBOUND;
|
|
|
|
break;
|
|
|
|
case FILE_SHARE_READ | FILE_SHARE_WRITE:
|
|
|
|
pipe_info->NamedPipeConfiguration = FILE_PIPE_FULL_DUPLEX;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
pipe_info->MaximumInstances = pipe->maxinstances;
|
|
|
|
pipe_info->CurrentInstances = pipe->instances;
|
|
|
|
pipe_info->InboundQuota = pipe->insize;
|
|
|
|
pipe_info->ReadDataAvailable = 0; /* FIXME */
|
|
|
|
pipe_info->OutboundQuota = pipe->outsize;
|
|
|
|
pipe_info->WriteQuotaAvailable = 0; /* FIXME */
|
2018-10-15 11:41:08 +00:00
|
|
|
pipe_info->NamedPipeState = pipe_end->state;
|
2018-10-15 11:40:36 +00:00
|
|
|
pipe_info->NamedPipeEnd = pipe_end->obj.ops == &pipe_server_ops
|
|
|
|
? FILE_PIPE_SERVER_END : FILE_PIPE_CLIENT_END;
|
|
|
|
break;
|
|
|
|
}
|
2017-12-21 15:12:12 +00:00
|
|
|
default:
|
2018-10-23 15:45:06 +00:00
|
|
|
default_fd_get_file_info( fd, handle, info_class );
|
2017-12-21 15:12:12 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2018-08-16 13:10:55 +00:00
|
|
|
static struct security_descriptor *pipe_end_get_sd( struct object *obj )
|
2018-02-26 18:25:08 +00:00
|
|
|
{
|
2018-08-16 13:10:55 +00:00
|
|
|
struct pipe_end *pipe_end = (struct pipe_end *) obj;
|
|
|
|
if (pipe_end->pipe) return default_get_sd( &pipe_end->pipe->obj );
|
2018-02-26 18:25:08 +00:00
|
|
|
set_error( STATUS_PIPE_DISCONNECTED );
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
2018-08-16 13:10:55 +00:00
|
|
|
static int pipe_end_set_sd( struct object *obj, const struct security_descriptor *sd,
|
|
|
|
unsigned int set_info )
|
2018-02-26 18:25:08 +00:00
|
|
|
{
|
2018-08-16 13:10:55 +00:00
|
|
|
struct pipe_end *pipe_end = (struct pipe_end *) obj;
|
|
|
|
if (pipe_end->pipe) return default_set_sd( &pipe_end->pipe->obj, sd, set_info );
|
2018-02-26 18:25:08 +00:00
|
|
|
set_error( STATUS_PIPE_DISCONNECTED );
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2020-09-22 14:56:58 +00:00
|
|
|
static WCHAR *pipe_end_get_full_name( struct object *obj, data_size_t *len )
|
|
|
|
{
|
|
|
|
struct pipe_end *pipe_end = (struct pipe_end *) obj;
|
|
|
|
return pipe_end->pipe->obj.ops->get_full_name( &pipe_end->pipe->obj, len );
|
|
|
|
}
|
|
|
|
|
2021-09-03 00:08:50 +00:00
|
|
|
static void pipe_end_get_volume_info( struct fd *fd, struct async *async, unsigned int info_class )
|
2017-10-02 14:42:24 +00:00
|
|
|
{
|
|
|
|
switch (info_class)
|
|
|
|
{
|
|
|
|
case FileFsDeviceInformation:
|
|
|
|
{
|
|
|
|
static const FILE_FS_DEVICE_INFORMATION device_info =
|
|
|
|
{
|
|
|
|
FILE_DEVICE_NAMED_PIPE,
|
|
|
|
FILE_DEVICE_ALLOW_APPCONTAINER_TRAVERSAL
|
|
|
|
};
|
|
|
|
if (get_reply_max_size() >= sizeof(device_info))
|
|
|
|
set_reply_data( &device_info, sizeof(device_info) );
|
|
|
|
else
|
|
|
|
set_error( STATUS_BUFFER_TOO_SMALL );
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
default:
|
|
|
|
set_error( STATUS_NOT_IMPLEMENTED );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2021-09-01 22:28:40 +00:00
|
|
|
static void message_queue_read( struct pipe_end *pipe_end, struct async *async )
|
2017-03-23 14:41:43 +00:00
|
|
|
{
|
2021-09-01 22:28:40 +00:00
|
|
|
struct iosb *iosb = async_get_iosb( async );
|
|
|
|
unsigned int status = STATUS_SUCCESS;
|
2017-03-23 14:41:43 +00:00
|
|
|
struct pipe_message *message;
|
2021-09-01 22:28:40 +00:00
|
|
|
data_size_t out_size;
|
2017-03-23 14:41:43 +00:00
|
|
|
|
2017-03-26 10:52:39 +00:00
|
|
|
if (pipe_end->flags & NAMED_PIPE_MESSAGE_STREAM_READ)
|
2017-03-23 14:41:43 +00:00
|
|
|
{
|
2017-03-26 10:52:39 +00:00
|
|
|
message = LIST_ENTRY( list_head(&pipe_end->message_queue), struct pipe_message, entry );
|
2021-09-01 22:28:40 +00:00
|
|
|
out_size = min( iosb->out_size, message->iosb->in_size - message->read_pos );
|
|
|
|
|
|
|
|
if (message->read_pos + out_size < message->iosb->in_size)
|
|
|
|
status = STATUS_BUFFER_OVERFLOW;
|
2017-03-26 10:52:39 +00:00
|
|
|
}
|
|
|
|
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;
|
|
|
|
}
|
2021-09-01 22:28:40 +00:00
|
|
|
out_size = min( iosb->out_size, avail );
|
2017-03-23 14:41:43 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
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 */
|
|
|
|
{
|
2021-09-01 22:28:40 +00:00
|
|
|
async_request_complete( async, status, out_size, out_size, message->iosb->in_data );
|
2017-03-23 14:41:43 +00:00
|
|
|
message->iosb->in_data = NULL;
|
2019-10-16 12:50:34 +00:00
|
|
|
wake_message( message, message->iosb->in_size );
|
2017-03-23 14:41:43 +00:00
|
|
|
free_message( message );
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
data_size_t write_pos = 0, writing;
|
|
|
|
char *buf = NULL;
|
|
|
|
|
2021-09-01 22:28:40 +00:00
|
|
|
if (out_size && !(buf = malloc( out_size )))
|
2017-03-23 14:41:43 +00:00
|
|
|
{
|
2021-09-01 22:28:40 +00:00
|
|
|
async_terminate( async, STATUS_NO_MEMORY );
|
|
|
|
release_object( iosb );
|
2017-03-23 14:41:43 +00:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
do
|
|
|
|
{
|
|
|
|
message = LIST_ENTRY( list_head(&pipe_end->message_queue), struct pipe_message, entry );
|
2021-09-01 22:28:40 +00:00
|
|
|
writing = min( out_size - write_pos, message->iosb->in_size - message->read_pos );
|
2017-03-23 14:41:43 +00:00
|
|
|
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)
|
|
|
|
{
|
2019-10-16 12:50:34 +00:00
|
|
|
wake_message(message, message->iosb->in_size);
|
2017-03-23 14:41:43 +00:00
|
|
|
free_message(message);
|
|
|
|
}
|
2021-09-01 22:28:40 +00:00
|
|
|
} while (write_pos < out_size);
|
|
|
|
|
|
|
|
async_request_complete( async, status, out_size, out_size, buf );
|
2017-03-23 14:41:43 +00:00
|
|
|
}
|
2021-09-01 22:28:40 +00:00
|
|
|
|
|
|
|
release_object( iosb );
|
2017-03-23 14:41:43 +00:00
|
|
|
}
|
|
|
|
|
2017-03-21 12:03:26 +00:00
|
|
|
/* 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 14:41:43 +00:00
|
|
|
static void reselect_write_queue( struct pipe_end *pipe_end );
|
|
|
|
|
2019-10-16 12:50:18 +00:00
|
|
|
static void reselect_read_queue( struct pipe_end *pipe_end, int reselect_write )
|
2017-03-23 14:41:43 +00:00
|
|
|
{
|
|
|
|
struct async *async;
|
|
|
|
|
|
|
|
ignore_reselect = 1;
|
2017-07-04 13:26:19 +00:00
|
|
|
while (!list_empty( &pipe_end->message_queue ) && (async = find_pending_async( &pipe_end->read_q )))
|
2017-03-23 14:41:43 +00:00
|
|
|
{
|
2021-09-01 22:28:40 +00:00
|
|
|
message_queue_read( pipe_end, async );
|
2017-03-23 14:41:43 +00:00
|
|
|
release_object( async );
|
2019-10-16 12:50:18 +00:00
|
|
|
reselect_write = 1;
|
2017-03-23 14:41:43 +00:00
|
|
|
}
|
|
|
|
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 );
|
2019-10-16 12:50:18 +00:00
|
|
|
else if (reselect_write)
|
2017-03-23 14:41:43 +00:00
|
|
|
reselect_write_queue( pipe_end->connection );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2017-03-21 12:03:26 +00:00
|
|
|
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;
|
2018-03-28 20:46:27 +00:00
|
|
|
if (message->async && (avail <= reader->buffer_size || !message->iosb->in_size))
|
2019-10-16 12:50:34 +00:00
|
|
|
{
|
|
|
|
wake_message( message, message->iosb->in_size );
|
|
|
|
}
|
|
|
|
else if (message->async && (pipe_end->flags & NAMED_PIPE_NONBLOCKING_MODE))
|
|
|
|
{
|
|
|
|
wake_message( message, message->read_pos );
|
|
|
|
free_message( message );
|
|
|
|
}
|
2017-03-21 12:03:26 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
ignore_reselect = 0;
|
2019-10-16 12:50:18 +00:00
|
|
|
reselect_read_queue( reader, 0 );
|
2017-03-23 14:42:03 +00:00
|
|
|
}
|
|
|
|
|
2017-06-26 10:17:36 +00:00
|
|
|
static int pipe_end_read( struct fd *fd, struct async *async, file_pos_t pos )
|
2017-03-23 14:42:03 +00:00
|
|
|
{
|
|
|
|
struct pipe_end *pipe_end = get_fd_user( fd );
|
|
|
|
|
2018-08-08 20:00:48 +00:00
|
|
|
switch (pipe_end->state)
|
2017-03-23 14:42:03 +00:00
|
|
|
{
|
2018-08-08 20:00:48 +00:00
|
|
|
case FILE_PIPE_CONNECTED_STATE:
|
2019-10-16 12:50:02 +00:00
|
|
|
if ((pipe_end->flags & NAMED_PIPE_NONBLOCKING_MODE) && list_empty( &pipe_end->message_queue ))
|
|
|
|
{
|
|
|
|
set_error( STATUS_PIPE_EMPTY );
|
|
|
|
return 0;
|
|
|
|
}
|
2018-08-08 20:00:48 +00:00
|
|
|
break;
|
|
|
|
case FILE_PIPE_DISCONNECTED_STATE:
|
|
|
|
set_error( STATUS_PIPE_DISCONNECTED );
|
|
|
|
return 0;
|
|
|
|
case FILE_PIPE_LISTENING_STATE:
|
|
|
|
set_error( STATUS_PIPE_LISTENING );
|
|
|
|
return 0;
|
|
|
|
case FILE_PIPE_CLOSING_STATE:
|
|
|
|
if (!list_empty( &pipe_end->message_queue )) break;
|
2017-03-23 14:42:03 +00:00
|
|
|
set_error( STATUS_PIPE_BROKEN );
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2017-07-04 13:26:19 +00:00
|
|
|
queue_async( &pipe_end->read_q, async );
|
2019-10-16 12:50:18 +00:00
|
|
|
reselect_read_queue( pipe_end, 0 );
|
2017-03-23 14:42:03 +00:00
|
|
|
set_error( STATUS_PENDING );
|
2017-06-26 10:17:36 +00:00
|
|
|
return 1;
|
2017-03-21 12:03:26 +00:00
|
|
|
}
|
|
|
|
|
2017-06-26 10:18:23 +00:00
|
|
|
static int pipe_end_write( struct fd *fd, struct async *async, file_pos_t pos )
|
2017-03-21 12:03:39 +00:00
|
|
|
{
|
2018-03-28 20:46:32 +00:00
|
|
|
struct pipe_end *pipe_end = get_fd_user( fd );
|
2017-03-21 12:03:39 +00:00
|
|
|
struct pipe_message *message;
|
2018-03-28 20:46:32 +00:00
|
|
|
struct iosb *iosb;
|
2017-03-21 12:03:39 +00:00
|
|
|
|
2018-08-08 20:00:55 +00:00
|
|
|
switch (pipe_end->state)
|
2017-03-21 12:03:39 +00:00
|
|
|
{
|
2018-08-08 20:00:55 +00:00
|
|
|
case FILE_PIPE_CONNECTED_STATE:
|
|
|
|
break;
|
|
|
|
case FILE_PIPE_DISCONNECTED_STATE:
|
2017-03-21 12:03:39 +00:00
|
|
|
set_error( STATUS_PIPE_DISCONNECTED );
|
|
|
|
return 0;
|
2018-08-08 20:00:55 +00:00
|
|
|
case FILE_PIPE_LISTENING_STATE:
|
|
|
|
set_error( STATUS_PIPE_LISTENING );
|
|
|
|
return 0;
|
|
|
|
case FILE_PIPE_CLOSING_STATE:
|
|
|
|
set_error( STATUS_PIPE_CLOSING );
|
|
|
|
return 0;
|
2017-03-21 12:03:39 +00:00
|
|
|
}
|
|
|
|
|
2018-11-23 14:13:07 +00:00
|
|
|
if (!pipe_end->pipe->message_mode && !get_req_data_size()) return 1;
|
2017-10-04 13:18:02 +00:00
|
|
|
|
2018-03-28 20:46:32 +00:00
|
|
|
iosb = async_get_iosb( async );
|
|
|
|
message = queue_message( pipe_end->connection, iosb );
|
|
|
|
release_object( iosb );
|
|
|
|
if (!message) return 0;
|
2017-03-21 12:03:39 +00:00
|
|
|
|
2018-03-28 20:46:32 +00:00
|
|
|
message->async = (struct async *)grab_object( async );
|
|
|
|
queue_async( &pipe_end->write_q, async );
|
2019-10-16 12:50:18 +00:00
|
|
|
reselect_read_queue( pipe_end->connection, 1 );
|
2017-03-21 12:03:39 +00:00
|
|
|
set_error( STATUS_PENDING );
|
2017-06-26 10:18:23 +00:00
|
|
|
return 1;
|
2017-03-21 12:03:39 +00:00
|
|
|
}
|
|
|
|
|
2017-03-21 12:03:26 +00:00
|
|
|
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;
|
|
|
|
|
2017-10-05 12:30:12 +00:00
|
|
|
if (&pipe_end->write_q == queue)
|
2017-03-21 12:03:26 +00:00
|
|
|
reselect_write_queue( pipe_end );
|
2017-07-04 13:26:19 +00:00
|
|
|
else if (&pipe_end->read_q == queue)
|
2019-10-16 12:50:18 +00:00
|
|
|
reselect_read_queue( pipe_end, 0 );
|
2017-03-21 12:03:26 +00:00
|
|
|
}
|
|
|
|
|
2017-04-24 13:18:14 +00:00
|
|
|
static enum server_fd_type pipe_end_get_fd_type( struct fd *fd )
|
2005-06-08 19:11:46 +00:00
|
|
|
{
|
2006-11-20 13:14:04 +00:00
|
|
|
return FD_TYPE_PIPE;
|
2001-10-05 19:45:45 +00:00
|
|
|
}
|
|
|
|
|
2017-06-26 10:20:10 +00:00
|
|
|
static int pipe_end_peek( struct pipe_end *pipe_end )
|
2017-03-21 12:03:55 +00:00
|
|
|
{
|
|
|
|
unsigned reply_size = get_reply_max_size();
|
|
|
|
FILE_PIPE_PEEK_BUFFER *buffer;
|
|
|
|
struct pipe_message *message;
|
|
|
|
data_size_t avail = 0;
|
2017-05-21 13:53:51 +00:00
|
|
|
data_size_t message_length = 0;
|
2017-03-21 12:03:55 +00:00
|
|
|
|
|
|
|
if (reply_size < offsetof( FILE_PIPE_PEEK_BUFFER, Data ))
|
|
|
|
{
|
|
|
|
set_error( STATUS_INFO_LENGTH_MISMATCH );
|
2017-06-26 10:20:10 +00:00
|
|
|
return 0;
|
2017-03-21 12:03:55 +00:00
|
|
|
}
|
|
|
|
reply_size -= offsetof( FILE_PIPE_PEEK_BUFFER, Data );
|
|
|
|
|
2018-08-08 20:00:41 +00:00
|
|
|
switch (pipe_end->state)
|
2017-10-04 13:17:35 +00:00
|
|
|
{
|
2018-08-08 20:00:41 +00:00
|
|
|
case FILE_PIPE_CONNECTED_STATE:
|
|
|
|
break;
|
|
|
|
case FILE_PIPE_CLOSING_STATE:
|
|
|
|
if (!list_empty( &pipe_end->message_queue )) break;
|
2017-10-04 13:17:35 +00:00
|
|
|
set_error( STATUS_PIPE_BROKEN );
|
|
|
|
return 0;
|
2018-08-08 20:00:41 +00:00
|
|
|
default:
|
2018-10-20 17:18:37 +00:00
|
|
|
set_error( pipe_end->pipe ? STATUS_INVALID_PIPE_STATE : STATUS_PIPE_DISCONNECTED );
|
2018-08-08 20:00:41 +00:00
|
|
|
return 0;
|
2017-10-04 13:17:35 +00:00
|
|
|
}
|
|
|
|
|
2017-03-21 12:03:55 +00:00
|
|
|
LIST_FOR_EACH_ENTRY( message, &pipe_end->message_queue, struct pipe_message, entry )
|
|
|
|
avail += message->iosb->in_size - message->read_pos;
|
2017-10-04 13:17:52 +00:00
|
|
|
reply_size = min( reply_size, avail );
|
2017-03-21 12:03:55 +00:00
|
|
|
|
2018-11-23 14:13:07 +00:00
|
|
|
if (avail && pipe_end->pipe->message_mode)
|
2017-03-21 12:03:55 +00:00
|
|
|
{
|
|
|
|
message = LIST_ENTRY( list_head(&pipe_end->message_queue), struct pipe_message, entry );
|
2017-05-21 13:53:51 +00:00
|
|
|
message_length = message->iosb->in_size - message->read_pos;
|
|
|
|
reply_size = min( reply_size, message_length );
|
2017-03-21 12:03:55 +00:00
|
|
|
}
|
|
|
|
|
2017-06-26 10:20:10 +00:00
|
|
|
if (!(buffer = set_reply_data_size( offsetof( FILE_PIPE_PEEK_BUFFER, Data[reply_size] )))) return 0;
|
2018-08-08 20:00:32 +00:00
|
|
|
buffer->NamedPipeState = pipe_end->state;
|
2017-03-21 12:03:55 +00:00
|
|
|
buffer->ReadDataAvailable = avail;
|
|
|
|
buffer->NumberOfMessages = 0; /* FIXME */
|
2017-05-21 13:53:51 +00:00
|
|
|
buffer->MessageLength = message_length;
|
2017-10-04 13:17:52 +00:00
|
|
|
|
|
|
|
if (reply_size)
|
|
|
|
{
|
|
|
|
data_size_t write_pos = 0, writing;
|
|
|
|
LIST_FOR_EACH_ENTRY( message, &pipe_end->message_queue, struct pipe_message, entry )
|
|
|
|
{
|
|
|
|
writing = min( reply_size - write_pos, message->iosb->in_size - message->read_pos );
|
|
|
|
memcpy( buffer->Data + write_pos, (const char *)message->iosb->in_data + message->read_pos,
|
|
|
|
writing );
|
|
|
|
write_pos += writing;
|
|
|
|
if (write_pos == reply_size) break;
|
|
|
|
}
|
|
|
|
}
|
2018-10-20 17:18:06 +00:00
|
|
|
if (message_length > reply_size) set_error( STATUS_BUFFER_OVERFLOW );
|
2017-06-26 10:20:10 +00:00
|
|
|
return 1;
|
2017-03-21 12:03:55 +00:00
|
|
|
}
|
|
|
|
|
2018-03-28 20:46:38 +00:00
|
|
|
static int pipe_end_transceive( struct pipe_end *pipe_end, struct async *async )
|
|
|
|
{
|
|
|
|
struct pipe_message *message;
|
|
|
|
struct iosb *iosb;
|
|
|
|
|
2018-08-08 20:01:02 +00:00
|
|
|
if (!pipe_end->connection)
|
2018-03-28 20:46:38 +00:00
|
|
|
{
|
2018-10-20 17:18:37 +00:00
|
|
|
set_error( pipe_end->pipe ? STATUS_INVALID_PIPE_STATE : STATUS_PIPE_DISCONNECTED );
|
2018-03-28 20:46:38 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2018-11-23 14:13:07 +00:00
|
|
|
if (!(pipe_end->flags & NAMED_PIPE_MESSAGE_STREAM_READ))
|
2018-03-28 20:46:38 +00:00
|
|
|
{
|
2018-08-08 20:01:02 +00:00
|
|
|
set_error( STATUS_INVALID_READ_MODE );
|
2018-03-28 20:46:38 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* not allowed if we already have read data buffered */
|
|
|
|
if (!list_empty( &pipe_end->message_queue ))
|
|
|
|
{
|
|
|
|
set_error( STATUS_PIPE_BUSY );
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
iosb = async_get_iosb( async );
|
|
|
|
/* ignore output buffer copy transferred because of METHOD_NEITHER */
|
|
|
|
iosb->in_size -= iosb->out_size;
|
|
|
|
/* transaction never blocks on write, so just queue a message without async */
|
|
|
|
message = queue_message( pipe_end->connection, iosb );
|
|
|
|
release_object( iosb );
|
|
|
|
if (!message) return 0;
|
2019-10-16 12:50:18 +00:00
|
|
|
reselect_read_queue( pipe_end->connection, 0 );
|
2018-03-28 20:46:38 +00:00
|
|
|
|
|
|
|
queue_async( &pipe_end->read_q, async );
|
2019-10-16 12:50:18 +00:00
|
|
|
reselect_read_queue( pipe_end, 0 );
|
2018-03-28 20:46:38 +00:00
|
|
|
set_error( STATUS_PENDING );
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
2018-04-11 12:32:56 +00:00
|
|
|
static int pipe_end_get_connection_attribute( struct pipe_end *pipe_end )
|
|
|
|
{
|
|
|
|
const char *attr = get_req_data();
|
|
|
|
data_size_t value_size, attr_size = get_req_data_size();
|
|
|
|
void *value;
|
|
|
|
|
|
|
|
if (attr_size == sizeof("ClientProcessId") && !memcmp( attr, "ClientProcessId", attr_size ))
|
|
|
|
{
|
|
|
|
value = &pipe_end->client_pid;
|
|
|
|
value_size = sizeof(pipe_end->client_pid);
|
|
|
|
}
|
|
|
|
else if (attr_size == sizeof("ServerProcessId") && !memcmp( attr, "ServerProcessId", attr_size ))
|
|
|
|
{
|
|
|
|
value = &pipe_end->server_pid;
|
|
|
|
value_size = sizeof(pipe_end->server_pid);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
set_error( STATUS_ILLEGAL_FUNCTION );
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (get_reply_max_size() < value_size)
|
|
|
|
{
|
|
|
|
set_error( STATUS_INFO_LENGTH_MISMATCH );
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
set_reply_data( value, value_size );
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
2018-03-28 20:46:38 +00:00
|
|
|
static int pipe_end_ioctl( struct pipe_end *pipe_end, ioctl_code_t code, struct async *async )
|
|
|
|
{
|
|
|
|
switch(code)
|
|
|
|
{
|
2018-04-11 12:32:56 +00:00
|
|
|
case FSCTL_PIPE_GET_CONNECTION_ATTRIBUTE:
|
|
|
|
return pipe_end_get_connection_attribute( pipe_end );
|
|
|
|
|
2018-03-28 20:46:38 +00:00
|
|
|
case FSCTL_PIPE_PEEK:
|
|
|
|
return pipe_end_peek( pipe_end );
|
|
|
|
|
|
|
|
case FSCTL_PIPE_TRANSCEIVE:
|
|
|
|
return pipe_end_transceive( pipe_end, async );
|
|
|
|
|
|
|
|
default:
|
|
|
|
return default_fd_ioctl( pipe_end->fd, code, async );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2017-06-26 10:20:10 +00:00
|
|
|
static int pipe_server_ioctl( struct fd *fd, ioctl_code_t code, struct async *async )
|
2007-04-16 12:51:29 +00:00
|
|
|
{
|
|
|
|
struct pipe_server *server = get_fd_user( fd );
|
|
|
|
|
|
|
|
switch(code)
|
|
|
|
{
|
2007-04-18 14:26:37 +00:00
|
|
|
case FSCTL_PIPE_LISTEN:
|
2018-08-17 15:40:44 +00:00
|
|
|
switch(server->pipe_end.state)
|
2007-04-18 14:26:37 +00:00
|
|
|
{
|
2018-08-17 15:40:44 +00:00
|
|
|
case FILE_PIPE_LISTENING_STATE:
|
2019-03-11 16:03:23 +00:00
|
|
|
break;
|
2018-08-17 15:40:44 +00:00
|
|
|
case FILE_PIPE_DISCONNECTED_STATE:
|
2019-03-11 16:03:23 +00:00
|
|
|
server->pipe_end.state = FILE_PIPE_LISTENING_STATE;
|
|
|
|
list_add_tail( &server->pipe_end.pipe->listeners, &server->entry );
|
2007-04-18 14:26:37 +00:00
|
|
|
break;
|
2018-08-17 15:40:44 +00:00
|
|
|
case FILE_PIPE_CONNECTED_STATE:
|
|
|
|
set_error( STATUS_PIPE_CONNECTED );
|
|
|
|
return 0;
|
|
|
|
case FILE_PIPE_CLOSING_STATE:
|
|
|
|
set_error( STATUS_PIPE_CLOSING );
|
|
|
|
return 0;
|
2007-04-18 14:26:37 +00:00
|
|
|
}
|
2018-08-17 15:40:44 +00:00
|
|
|
|
2019-10-16 12:50:45 +00:00
|
|
|
if (server->pipe_end.flags & NAMED_PIPE_NONBLOCKING_MODE)
|
|
|
|
{
|
|
|
|
set_error( STATUS_PIPE_LISTENING );
|
|
|
|
return 0;
|
|
|
|
}
|
2018-08-17 15:41:01 +00:00
|
|
|
queue_async( &server->listen_q, async );
|
2018-08-17 15:40:44 +00:00
|
|
|
async_wake_up( &server->pipe_end.pipe->waiters, STATUS_SUCCESS );
|
|
|
|
set_error( STATUS_PENDING );
|
|
|
|
return 1;
|
2007-04-18 14:26:37 +00:00
|
|
|
|
2007-04-16 12:51:29 +00:00
|
|
|
case FSCTL_PIPE_DISCONNECT:
|
2018-08-17 15:40:55 +00:00
|
|
|
switch(server->pipe_end.state)
|
2007-04-16 12:51:29 +00:00
|
|
|
{
|
2018-08-17 15:40:55 +00:00
|
|
|
case FILE_PIPE_CONNECTED_STATE:
|
2018-08-16 13:10:33 +00:00
|
|
|
/* dump the client connection - all data is lost */
|
2018-08-17 15:40:55 +00:00
|
|
|
assert( server->pipe_end.connection );
|
2018-08-16 13:10:33 +00:00
|
|
|
release_object( server->pipe_end.connection->pipe );
|
|
|
|
server->pipe_end.connection->pipe = NULL;
|
2007-04-16 12:51:29 +00:00
|
|
|
break;
|
2018-08-17 15:40:55 +00:00
|
|
|
case FILE_PIPE_CLOSING_STATE:
|
2007-04-16 12:51:29 +00:00
|
|
|
break;
|
2018-08-17 15:40:55 +00:00
|
|
|
case FILE_PIPE_LISTENING_STATE:
|
2007-04-18 14:26:37 +00:00
|
|
|
set_error( STATUS_PIPE_LISTENING );
|
2017-06-26 10:20:10 +00:00
|
|
|
return 0;
|
2018-08-17 15:40:55 +00:00
|
|
|
case FILE_PIPE_DISCONNECTED_STATE:
|
2007-04-18 14:26:37 +00:00
|
|
|
set_error( STATUS_PIPE_DISCONNECTED );
|
2017-06-26 10:20:10 +00:00
|
|
|
return 0;
|
2007-04-16 12:51:29 +00:00
|
|
|
}
|
2018-08-17 15:40:55 +00:00
|
|
|
|
|
|
|
pipe_end_disconnect( &server->pipe_end, STATUS_PIPE_DISCONNECTED );
|
2017-06-26 10:20:10 +00:00
|
|
|
return 1;
|
2007-04-18 14:26:37 +00:00
|
|
|
|
2020-07-10 05:57:07 +00:00
|
|
|
case FSCTL_PIPE_IMPERSONATE:
|
|
|
|
if (current->process->token) /* FIXME: use the client token */
|
|
|
|
{
|
|
|
|
struct token *token;
|
2020-09-22 22:31:15 +00:00
|
|
|
if (!(token = token_duplicate( current->process->token, 0, SecurityImpersonation, NULL, NULL, 0, NULL, 0 )))
|
2020-07-10 05:57:07 +00:00
|
|
|
return 0;
|
|
|
|
if (current->token) release_object( current->token );
|
|
|
|
current->token = token;
|
|
|
|
}
|
|
|
|
return 1;
|
|
|
|
|
2017-03-21 12:03:55 +00:00
|
|
|
default:
|
2018-03-28 20:46:38 +00:00
|
|
|
return pipe_end_ioctl( &server->pipe_end, code, async );
|
2017-03-21 12:03:55 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2017-06-26 10:20:10 +00:00
|
|
|
static int pipe_client_ioctl( struct fd *fd, ioctl_code_t code, struct async *async )
|
2017-03-21 12:03:55 +00:00
|
|
|
{
|
2018-11-23 14:13:24 +00:00
|
|
|
struct pipe_end *client = get_fd_user( fd );
|
2017-03-21 12:03:55 +00:00
|
|
|
|
|
|
|
switch(code)
|
|
|
|
{
|
2017-10-10 16:40:43 +00:00
|
|
|
case FSCTL_PIPE_LISTEN:
|
|
|
|
set_error( STATUS_ILLEGAL_FUNCTION );
|
|
|
|
return 0;
|
|
|
|
|
2007-04-16 12:51:29 +00:00
|
|
|
default:
|
2018-11-23 14:13:24 +00:00
|
|
|
return pipe_end_ioctl( client, code, async );
|
2007-04-16 12:51:29 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2018-08-16 13:10:33 +00:00
|
|
|
static void init_pipe_end( struct pipe_end *pipe_end, struct named_pipe *pipe,
|
|
|
|
unsigned int pipe_flags, data_size_t buffer_size )
|
2017-02-22 13:51:06 +00:00
|
|
|
{
|
2018-08-16 13:10:33 +00:00
|
|
|
pipe_end->pipe = (struct named_pipe *)grab_object( pipe );
|
2017-02-22 13:51:06 +00:00
|
|
|
pipe_end->fd = NULL;
|
|
|
|
pipe_end->flags = pipe_flags;
|
2017-03-15 22:25:25 +00:00
|
|
|
pipe_end->connection = NULL;
|
2017-03-15 22:25:31 +00:00
|
|
|
pipe_end->buffer_size = buffer_size;
|
2017-07-04 13:26:19 +00:00
|
|
|
init_async_queue( &pipe_end->read_q );
|
|
|
|
init_async_queue( &pipe_end->write_q );
|
2017-03-21 12:03:03 +00:00
|
|
|
list_init( &pipe_end->message_queue );
|
2017-02-22 13:51:06 +00:00
|
|
|
}
|
|
|
|
|
2014-08-11 13:35:50 +00:00
|
|
|
static struct pipe_server *create_pipe_server( struct named_pipe *pipe, unsigned int options,
|
|
|
|
unsigned int pipe_flags )
|
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 );
|
2005-06-10 19:54:46 +00:00
|
|
|
if (!server)
|
2001-07-10 19:16:49 +00:00
|
|
|
return NULL;
|
|
|
|
|
2005-06-08 19:11:46 +00:00
|
|
|
server->options = options;
|
2018-08-16 13:10:33 +00:00
|
|
|
init_pipe_end( &server->pipe_end, pipe, pipe_flags, pipe->insize );
|
2018-08-08 20:00:32 +00:00
|
|
|
server->pipe_end.state = FILE_PIPE_LISTENING_STATE;
|
2018-04-11 12:32:56 +00:00
|
|
|
server->pipe_end.server_pid = get_process_id( current->process );
|
2018-11-23 14:13:32 +00:00
|
|
|
init_async_queue( &server->listen_q );
|
2001-07-10 19:16:49 +00:00
|
|
|
|
2019-03-11 16:03:23 +00:00
|
|
|
list_add_tail( &pipe->listeners, &server->entry );
|
2017-10-09 12:28:46 +00:00
|
|
|
if (!(server->pipe_end.fd = alloc_pseudo_fd( &pipe_server_fd_ops, &server->pipe_end.obj, options )))
|
2007-04-18 14:26:37 +00:00
|
|
|
{
|
|
|
|
release_object( server );
|
2007-05-08 19:13:14 +00:00
|
|
|
return NULL;
|
2007-04-18 14:26:37 +00:00
|
|
|
}
|
2018-08-08 20:01:20 +00:00
|
|
|
allow_fd_caching( server->pipe_end.fd );
|
2017-10-09 12:28:46 +00:00
|
|
|
set_fd_signaled( server->pipe_end.fd, 1 );
|
2019-03-11 16:03:33 +00:00
|
|
|
async_wake_up( &pipe->waiters, STATUS_SUCCESS );
|
2003-05-15 04:22:45 +00:00
|
|
|
return server;
|
2001-07-10 19:16:49 +00:00
|
|
|
}
|
|
|
|
|
2018-11-23 14:13:24 +00:00
|
|
|
static struct pipe_end *create_pipe_client( struct named_pipe *pipe, data_size_t buffer_size, unsigned int options )
|
2001-07-10 19:16:49 +00:00
|
|
|
{
|
2018-11-23 14:13:24 +00:00
|
|
|
struct pipe_end *client;
|
2001-07-10 19:16:49 +00:00
|
|
|
|
2003-05-15 04:22:45 +00:00
|
|
|
client = alloc_object( &pipe_client_ops );
|
2005-06-10 19:54:46 +00:00
|
|
|
if (!client)
|
2003-05-15 04:22:45 +00:00
|
|
|
return NULL;
|
|
|
|
|
2018-11-23 14:13:24 +00:00
|
|
|
init_pipe_end( client, pipe, 0, buffer_size );
|
|
|
|
client->state = FILE_PIPE_CONNECTED_STATE;
|
|
|
|
client->client_pid = get_process_id( current->process );
|
2003-05-15 04:22:45 +00:00
|
|
|
|
2018-11-23 14:13:24 +00:00
|
|
|
client->fd = alloc_pseudo_fd( &pipe_client_fd_ops, &client->obj, options );
|
|
|
|
if (!client->fd)
|
2017-10-04 13:18:40 +00:00
|
|
|
{
|
|
|
|
release_object( client );
|
|
|
|
return NULL;
|
|
|
|
}
|
2018-11-23 14:13:24 +00:00
|
|
|
allow_fd_caching( client->fd );
|
|
|
|
set_fd_signaled( client->fd, 1 );
|
2017-10-04 13:18:40 +00:00
|
|
|
|
2003-05-15 04:22:45 +00:00
|
|
|
return client;
|
|
|
|
}
|
|
|
|
|
2016-02-04 12:08:02 +00:00
|
|
|
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 15:47:46 +00:00
|
|
|
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;
|
2018-11-23 14:13:24 +00:00
|
|
|
struct pipe_end *client;
|
2011-09-29 09:20:50 +00:00
|
|
|
unsigned int pipe_sharing;
|
2007-03-22 15:47:46 +00:00
|
|
|
|
2019-03-11 16:03:23 +00:00
|
|
|
if (list_empty( &pipe->listeners ))
|
2007-03-22 15:47:46 +00:00
|
|
|
{
|
|
|
|
set_error( STATUS_PIPE_NOT_AVAILABLE );
|
|
|
|
return NULL;
|
|
|
|
}
|
2019-03-11 16:03:23 +00:00
|
|
|
server = LIST_ENTRY( list_head( &pipe->listeners ), struct pipe_server, entry );
|
2007-03-22 15:47:46 +00:00
|
|
|
|
2018-08-16 13:11:48 +00:00
|
|
|
pipe_sharing = pipe->sharing;
|
2011-09-29 09:20:50 +00:00
|
|
|
if (((access & GENERIC_READ) && !(pipe_sharing & FILE_SHARE_READ)) ||
|
|
|
|
((access & GENERIC_WRITE) && !(pipe_sharing & FILE_SHARE_WRITE)))
|
|
|
|
{
|
|
|
|
set_error( STATUS_ACCESS_DENIED );
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
2018-11-23 14:13:24 +00:00
|
|
|
if ((client = create_pipe_client( pipe, pipe->outsize, options )))
|
2007-03-22 15:47:46 +00:00
|
|
|
{
|
2018-08-17 15:41:01 +00:00
|
|
|
async_wake_up( &server->listen_q, STATUS_SUCCESS );
|
2018-08-08 20:00:32 +00:00
|
|
|
server->pipe_end.state = FILE_PIPE_CONNECTED_STATE;
|
2018-11-23 14:13:24 +00:00
|
|
|
server->pipe_end.connection = client;
|
|
|
|
client->connection = &server->pipe_end;
|
|
|
|
server->pipe_end.client_pid = client->client_pid;
|
|
|
|
client->server_pid = server->pipe_end.server_pid;
|
2019-03-11 16:03:23 +00:00
|
|
|
list_remove( &server->entry );
|
2007-03-22 15:47:46 +00:00
|
|
|
}
|
2018-11-23 14:13:24 +00:00
|
|
|
return &client->obj;
|
2007-03-22 15:47:46 +00:00
|
|
|
}
|
|
|
|
|
2017-06-26 10:20:10 +00:00
|
|
|
static int named_pipe_device_ioctl( struct fd *fd, ioctl_code_t code, struct async *async )
|
2007-04-17 20:07:07 +00:00
|
|
|
{
|
|
|
|
struct named_pipe_device *device = get_fd_user( fd );
|
|
|
|
|
|
|
|
switch(code)
|
|
|
|
{
|
|
|
|
case FSCTL_PIPE_WAIT:
|
|
|
|
{
|
2015-05-05 03:02:59 +00:00
|
|
|
const FILE_PIPE_WAIT_FOR_BUFFER *buffer = get_req_data();
|
|
|
|
data_size_t size = get_req_data_size();
|
2007-04-17 20:07:07 +00:00
|
|
|
struct named_pipe *pipe;
|
|
|
|
struct unicode_str name;
|
2017-02-15 21:12:28 +00:00
|
|
|
timeout_t when;
|
2007-04-17 20:07:07 +00:00
|
|
|
|
|
|
|
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 15:43:18 +00:00
|
|
|
return 0;
|
2007-04-17 20:07:07 +00:00
|
|
|
}
|
|
|
|
name.str = buffer->Name;
|
|
|
|
name.len = (buffer->NameLength / sizeof(WCHAR)) * sizeof(WCHAR);
|
2016-02-08 05:30:07 +00:00
|
|
|
if (!(pipe = open_named_object( &device->obj, &named_pipe_ops, &name, 0 ))) return 0;
|
|
|
|
|
2019-03-11 16:03:23 +00:00
|
|
|
if (list_empty( &pipe->listeners ))
|
2007-04-17 20:07:07 +00:00
|
|
|
{
|
2017-07-04 13:26:19 +00:00
|
|
|
queue_async( &pipe->waiters, async );
|
2017-02-15 21:12:59 +00:00
|
|
|
when = buffer->TimeoutSpecified ? buffer->Timeout.QuadPart : pipe->timeout;
|
|
|
|
async_set_timeout( async, when, STATUS_IO_TIMEOUT );
|
|
|
|
set_error( STATUS_PENDING );
|
2007-04-17 20:07:07 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
release_object( pipe );
|
2019-03-11 16:03:23 +00:00
|
|
|
return 1;
|
2007-04-17 20:07:07 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
default:
|
2017-04-12 11:54:17 +00:00
|
|
|
return default_fd_ioctl( fd, code, async );
|
2007-04-17 20:07:07 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
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;
|
2005-11-18 16:31:18 +00:00
|
|
|
struct unicode_str name;
|
2016-02-12 12:00:41 +00:00
|
|
|
struct object *root;
|
2014-11-12 10:25:23 +00:00
|
|
|
const struct security_descriptor *sd;
|
2016-02-01 05:57:37 +00:00
|
|
|
const struct object_attributes *objattr = get_req_object_attributes( &sd, &name, &root );
|
2016-01-15 09:15:31 +00:00
|
|
|
|
|
|
|
if (!objattr) return;
|
2001-07-10 19:16:49 +00:00
|
|
|
|
2011-10-12 12:50:40 +00:00
|
|
|
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 11:57:38 +00:00
|
|
|
{
|
2016-04-26 01:34:58 +00:00
|
|
|
if (root) release_object( root );
|
2011-09-26 11:57:38 +00:00
|
|
|
set_error( STATUS_INVALID_PARAMETER );
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2016-02-01 05:57:37 +00:00
|
|
|
if (!name.len) /* pipes need a root directory even without a name */
|
|
|
|
{
|
|
|
|
if (!objattr->rootdir)
|
|
|
|
{
|
|
|
|
set_error( STATUS_OBJECT_PATH_SYNTAX_BAD );
|
|
|
|
return;
|
|
|
|
}
|
2020-11-25 18:42:43 +00:00
|
|
|
if (!(root = get_handle_obj( current->process, objattr->rootdir, 0, NULL ))) return;
|
2016-02-01 05:57:37 +00:00
|
|
|
}
|
2005-12-05 12:09:35 +00:00
|
|
|
|
2016-02-12 13:57:33 +00:00
|
|
|
pipe = create_named_object( root, &named_pipe_ops, &name, objattr->attributes | OBJ_OPENIF, NULL );
|
2005-12-05 12:09:35 +00:00
|
|
|
|
|
|
|
if (root) release_object( root );
|
|
|
|
if (!pipe) return;
|
2001-07-10 19:16:49 +00:00
|
|
|
|
2005-11-21 16:27:03 +00:00
|
|
|
if (get_error() != STATUS_OBJECT_NAME_EXISTS)
|
2001-08-27 19:03:42 +00:00
|
|
|
{
|
2005-12-05 12:09:35 +00:00
|
|
|
/* initialize it if it didn't already exist */
|
|
|
|
pipe->instances = 0;
|
2017-07-04 13:26:19 +00:00
|
|
|
init_async_queue( &pipe->waiters );
|
2019-03-11 16:03:23 +00:00
|
|
|
list_init( &pipe->listeners );
|
2001-08-27 19:03:42 +00:00
|
|
|
pipe->insize = req->insize;
|
|
|
|
pipe->outsize = req->outsize;
|
|
|
|
pipe->maxinstances = req->maxinstances;
|
|
|
|
pipe->timeout = req->timeout;
|
2018-11-23 14:13:07 +00:00
|
|
|
pipe->message_mode = (req->flags & NAMED_PIPE_MESSAGE_STREAM_WRITE) != 0;
|
2011-09-26 11:57:15 +00:00
|
|
|
pipe->sharing = req->sharing;
|
2018-02-26 18:25:08 +00:00
|
|
|
if (sd) default_set_sd( &pipe->obj, sd, OWNER_SECURITY_INFORMATION |
|
|
|
|
GROUP_SECURITY_INFORMATION |
|
|
|
|
DACL_SECURITY_INFORMATION |
|
|
|
|
SACL_SECURITY_INFORMATION );
|
2001-08-27 19:03:42 +00:00
|
|
|
}
|
2003-05-15 04:22:45 +00:00
|
|
|
else
|
|
|
|
{
|
2005-06-10 19:54:46 +00:00
|
|
|
if (pipe->maxinstances <= pipe->instances)
|
2003-05-15 04:22:45 +00:00
|
|
|
{
|
2005-11-01 21:37:30 +00:00
|
|
|
set_error( STATUS_INSTANCE_NOT_AVAILABLE );
|
2003-05-15 04:22:45 +00:00
|
|
|
release_object( pipe );
|
|
|
|
return;
|
|
|
|
}
|
2011-09-26 11:57:29 +00:00
|
|
|
if (pipe->sharing != req->sharing)
|
2003-05-15 04:22:45 +00:00
|
|
|
{
|
|
|
|
set_error( STATUS_ACCESS_DENIED );
|
|
|
|
release_object( pipe );
|
|
|
|
return;
|
|
|
|
}
|
2006-05-26 10:10:11 +00:00
|
|
|
clear_error(); /* clear the name collision */
|
2003-05-15 04:22:45 +00:00
|
|
|
}
|
2001-08-27 19:03:42 +00:00
|
|
|
|
2014-08-11 13:35:50 +00:00
|
|
|
server = create_pipe_server( pipe, req->options, req->flags );
|
2005-06-10 19:54:46 +00:00
|
|
|
if (server)
|
2001-07-10 19:16:49 +00:00
|
|
|
{
|
2016-01-15 08:53:34 +00:00
|
|
|
reply->handle = alloc_handle( current->process, server, req->access, objattr->attributes );
|
2018-08-16 13:11:48 +00:00
|
|
|
pipe->instances++;
|
2003-05-15 04:22:45 +00:00
|
|
|
release_object( server );
|
2001-07-10 19:16:49 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
release_object( pipe );
|
|
|
|
}
|
|
|
|
|
2014-08-11 15:06:49 +00:00
|
|
|
DECL_HANDLER(set_named_pipe_info)
|
|
|
|
{
|
2018-08-16 13:11:32 +00:00
|
|
|
struct pipe_end *pipe_end;
|
2014-08-11 15:06:49 +00:00
|
|
|
|
2018-08-16 13:11:32 +00:00
|
|
|
pipe_end = (struct pipe_end *)get_handle_obj( current->process, req->handle,
|
|
|
|
FILE_WRITE_ATTRIBUTES, &pipe_server_ops );
|
|
|
|
if (!pipe_end)
|
2014-08-11 15:06:49 +00:00
|
|
|
{
|
|
|
|
if (get_error() != STATUS_OBJECT_TYPE_MISMATCH)
|
|
|
|
return;
|
|
|
|
|
|
|
|
clear_error();
|
2018-08-16 13:11:32 +00:00
|
|
|
pipe_end = (struct pipe_end *)get_handle_obj( current->process, req->handle,
|
|
|
|
0, &pipe_client_ops );
|
|
|
|
if (!pipe_end) return;
|
2014-08-11 15:06:49 +00:00
|
|
|
}
|
|
|
|
|
2018-11-23 14:12:35 +00:00
|
|
|
if (!pipe_end->pipe)
|
|
|
|
{
|
|
|
|
set_error( STATUS_PIPE_DISCONNECTED );
|
|
|
|
}
|
|
|
|
else if ((req->flags & ~(NAMED_PIPE_MESSAGE_STREAM_READ | NAMED_PIPE_NONBLOCKING_MODE)) ||
|
2018-11-23 14:13:07 +00:00
|
|
|
((req->flags & NAMED_PIPE_MESSAGE_STREAM_READ) && !pipe_end->pipe->message_mode))
|
2014-08-11 15:06:49 +00:00
|
|
|
{
|
|
|
|
set_error( STATUS_INVALID_PARAMETER );
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
2018-11-23 14:13:07 +00:00
|
|
|
pipe_end->flags = req->flags;
|
2014-08-11 15:06:49 +00:00
|
|
|
}
|
|
|
|
|
2018-08-16 13:11:32 +00:00
|
|
|
release_object( pipe_end );
|
2014-08-11 15:06:49 +00:00
|
|
|
}
|