[apple/xnu.git] / bsd / miscfs / fdesc / fdesc.h

/*
 * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
/*
 * Copyright (c) 1992, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software donated to Berkeley by
 * Jan-Simon Pendry.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *	@(#)fdesc.h	8.6 (Berkeley) 8/20/94
 *
 * #Id: fdesc.h,v 1.8 1993/04/06 15:28:33 jsp Exp #
 */
#ifndef __FDESC_FDESC_H__
#define __FDESC_FDESC_H__

#include  <sys/appleapiopts.h>

#ifdef __APPLE_API_PRIVATE
#ifdef KERNEL
struct fdescmount {
	struct vnode	*f_root;	/* Root node */
};

#define FD_ROOT		2
#define FD_DEVFD	3
#define FD_STDIN	4
#define FD_STDOUT	5
#define FD_STDERR	6
#define FD_DESC		8
#define FD_MAX		12

typedef enum {
	Froot,
	Fdevfd,
	Fdesc,
	Flink,
} fdntype;

struct fdescnode {
	LIST_ENTRY(fdescnode) fd_hash;	/* Hash list */
	struct vnode	*fd_vnode;	/* Back ptr to vnode */
	fdntype		fd_type;	/* Type of this node */
	unsigned	fd_fd;		/* Fd to be dup'ed */
	char		*fd_link;	/* Link to fd/n */
	int		fd_ix;		/* filesystem index */
};

#define VFSTOFDESC(mp)	((struct fdescmount *)((mp)->mnt_data))
#define	VTOFDESC(vp) ((struct fdescnode *)(vp)->v_data)

extern int fdesc_init __P((struct vfsconf *));
extern int fdesc_root __P((struct mount *, struct vnode **));
extern int fdesc_allocvp __P((fdntype, int, struct mount *, struct vnode **));
extern int (**fdesc_vnodeop_p)(void *);
extern struct vfsops fdesc_vfsops;
#endif /* KERNEL */
#endif /* __APPLE_API_PRIVATE */
#endif /* __FDESC_FDESC_H__ */
Commit	Line	Data
1c79356b	1	/*
9bccf70c	2	* Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
1c79356b A	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
	6	* The contents of this file constitute Original Code as defined in and
	7	* are subject to the Apple Public Source License Version 1.1 (the
	8	* "License"). You may not use this file except in compliance with the
	9	* License. Please obtain a copy of the License at
	10	* http://www.apple.com/publicsource and read it before using this file.
	11	*
	12	* This Original Code and all software distributed under the License are
	13	* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	14	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	15	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
	17	* License for the specific language governing rights and limitations
	18	* under the License.
	19	*
	20	* @APPLE_LICENSE_HEADER_END@
	21	*/
	22	/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
	23	/*
	24	* Copyright (c) 1992, 1993
	25	* The Regents of the University of California. All rights reserved.
	26	*
	27	* This code is derived from software donated to Berkeley by
	28	* Jan-Simon Pendry.
	29	*
	30	* Redistribution and use in source and binary forms, with or without
	31	* modification, are permitted provided that the following conditions
	32	* are met:
	33	* 1. Redistributions of source code must retain the above copyright
	34	* notice, this list of conditions and the following disclaimer.
	35	* 2. Redistributions in binary form must reproduce the above copyright
	36	* notice, this list of conditions and the following disclaimer in the
	37	* documentation and/or other materials provided with the distribution.
	38	* 3. All advertising materials mentioning features or use of this software
	39	* must display the following acknowledgement:
	40	* This product includes software developed by the University of
	41	* California, Berkeley and its contributors.
	42	* 4. Neither the name of the University nor the names of its contributors
	43	* may be used to endorse or promote products derived from this software
	44	* without specific prior written permission.
	45	*
	46	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	47	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	48	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	49	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	50	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	51	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	52	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	53	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	54	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	55	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	56	* SUCH DAMAGE.
	57	*
	58	* @(#)fdesc.h 8.6 (Berkeley) 8/20/94
	59	*
	60	* #Id: fdesc.h,v 1.8 1993/04/06 15:28:33 jsp Exp #
	61	*/
9bccf70c A	62	#ifndef __FDESC_FDESC_H__
9bccf70c A	63	#define __FDESC_FDESC_H__
1c79356b	64
9bccf70c A	65	#include <sys/appleapiopts.h>
	66
	67	#ifdef __APPLE_API_PRIVATE
1c79356b A	68	#ifdef KERNEL
	69	struct fdescmount {
	70	struct vnode f_root; / Root node */
	71	};
	72
	73	#define FD_ROOT 2
	74	#define FD_DEVFD 3
	75	#define FD_STDIN 4
	76	#define FD_STDOUT 5
	77	#define FD_STDERR 6
1c79356b A	78	#define FD_DESC 8
	79	#define FD_MAX 12
	80
	81	typedef enum {
	82	Froot,
	83	Fdevfd,
	84	Fdesc,
	85	Flink,
1c79356b A	86	} fdntype;
	87
	88	struct fdescnode {
	89	LIST_ENTRY(fdescnode) fd_hash; /* Hash list */
	90	struct vnode fd_vnode; / Back ptr to vnode */
	91	fdntype fd_type; /* Type of this node */
	92	unsigned fd_fd; /* Fd to be dup'ed */
	93	char fd_link; / Link to fd/n */
	94	int fd_ix; /* filesystem index */
	95	};
	96
	97	#define VFSTOFDESC(mp) ((struct fdescmount *)((mp)->mnt_data))
	98	#define VTOFDESC(vp) ((struct fdescnode *)(vp)->v_data)
	99
1c79356b A	100	extern int fdesc_init __P((struct vfsconf *));
	101	extern int fdesc_root __P((struct mount , struct vnode *));
	102	extern int fdesc_allocvp __P((fdntype, int, struct mount , struct vnode *));
	103	extern int (*fdesc_vnodeop_p)(void );
	104	extern struct vfsops fdesc_vfsops;
	105	#endif /* KERNEL */
9bccf70c A	106	#endif /* __APPLE_API_PRIVATE */
9bccf70c A	107	#endif /* __FDESC_FDESC_H__ */