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ptyfs.h revision 1.7.4.1
      1  1.7.4.1     skrll /*	$NetBSD: ptyfs.h,v 1.7.4.1 2009/04/28 07:36:53 skrll Exp $	*/
      2      1.1  jdolecek 
      3      1.1  jdolecek /*
      4      1.1  jdolecek  * Copyright (c) 1993
      5      1.1  jdolecek  *	The Regents of the University of California.  All rights reserved.
      6      1.1  jdolecek  *
      7      1.1  jdolecek  * This code is derived from software contributed to Berkeley by
      8      1.1  jdolecek  * Jan-Simon Pendry.
      9      1.1  jdolecek  *
     10      1.1  jdolecek  * Redistribution and use in source and binary forms, with or without
     11      1.1  jdolecek  * modification, are permitted provided that the following conditions
     12      1.1  jdolecek  * are met:
     13      1.1  jdolecek  * 1. Redistributions of source code must retain the above copyright
     14      1.1  jdolecek  *    notice, this list of conditions and the following disclaimer.
     15      1.1  jdolecek  * 2. Redistributions in binary form must reproduce the above copyright
     16      1.1  jdolecek  *    notice, this list of conditions and the following disclaimer in the
     17      1.1  jdolecek  *    documentation and/or other materials provided with the distribution.
     18      1.1  jdolecek  * 3. Neither the name of the University nor the names of its contributors
     19      1.1  jdolecek  *    may be used to endorse or promote products derived from this software
     20      1.1  jdolecek  *    without specific prior written permission.
     21      1.1  jdolecek  *
     22      1.1  jdolecek  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     23      1.1  jdolecek  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     24      1.1  jdolecek  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     25      1.1  jdolecek  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     26      1.1  jdolecek  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     27      1.1  jdolecek  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     28      1.1  jdolecek  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     29      1.1  jdolecek  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     30      1.1  jdolecek  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     31      1.1  jdolecek  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     32      1.1  jdolecek  * SUCH DAMAGE.
     33      1.1  jdolecek  *
     34      1.1  jdolecek  *	@(#)procfs.h	8.9 (Berkeley) 5/14/95
     35      1.1  jdolecek  */
     36      1.1  jdolecek 
     37      1.1  jdolecek /*
     38      1.1  jdolecek  * Copyright (c) 1993 Jan-Simon Pendry
     39      1.1  jdolecek  *
     40      1.1  jdolecek  * This code is derived from software contributed to Berkeley by
     41      1.1  jdolecek  * Jan-Simon Pendry.
     42      1.1  jdolecek  *
     43      1.1  jdolecek  * Redistribution and use in source and binary forms, with or without
     44      1.1  jdolecek  * modification, are permitted provided that the following conditions
     45      1.1  jdolecek  * are met:
     46      1.1  jdolecek  * 1. Redistributions of source code must retain the above copyright
     47      1.1  jdolecek  *    notice, this list of conditions and the following disclaimer.
     48      1.1  jdolecek  * 2. Redistributions in binary form must reproduce the above copyright
     49      1.1  jdolecek  *    notice, this list of conditions and the following disclaimer in the
     50      1.1  jdolecek  *    documentation and/or other materials provided with the distribution.
     51      1.1  jdolecek  * 3. All advertising materials mentioning features or use of this software
     52      1.1  jdolecek  *    must display the following acknowledgement:
     53      1.1  jdolecek  *	This product includes software developed by the University of
     54      1.1  jdolecek  *	California, Berkeley and its contributors.
     55      1.1  jdolecek  * 4. Neither the name of the University nor the names of its contributors
     56      1.1  jdolecek  *    may be used to endorse or promote products derived from this software
     57      1.1  jdolecek  *    without specific prior written permission.
     58      1.1  jdolecek  *
     59      1.1  jdolecek  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     60      1.1  jdolecek  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     61      1.1  jdolecek  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     62      1.1  jdolecek  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     63      1.1  jdolecek  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     64      1.1  jdolecek  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     65      1.1  jdolecek  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     66      1.1  jdolecek  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     67      1.1  jdolecek  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     68      1.1  jdolecek  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     69      1.1  jdolecek  * SUCH DAMAGE.
     70      1.1  jdolecek  *
     71      1.1  jdolecek  *	@(#)procfs.h	8.9 (Berkeley) 5/14/95
     72      1.1  jdolecek  */
     73      1.1  jdolecek 
     74      1.5  christos #ifndef _FS_PTYFS_PTYFS_H_
     75      1.5  christos #define _FS_PTYFS_PTYFS_H_
     76      1.5  christos 
     77      1.1  jdolecek #ifdef _KERNEL
     78      1.1  jdolecek /*
     79      1.1  jdolecek  * The different types of node in a ptyfs filesystem
     80      1.1  jdolecek  */
     81      1.1  jdolecek typedef enum {
     82      1.1  jdolecek 	PTYFSpts,	/* The slave side of a pty */
     83      1.1  jdolecek 	PTYFSptc,	/* The controlling side of a pty */
     84      1.1  jdolecek 	PTYFSroot,	/* the filesystem root */
     85      1.1  jdolecek } ptyfstype;
     86      1.1  jdolecek 
     87      1.1  jdolecek /*
     88      1.1  jdolecek  * control data for the proc file system.
     89      1.1  jdolecek  */
     90      1.1  jdolecek struct ptyfsnode {
     91      1.1  jdolecek 	LIST_ENTRY(ptyfsnode) ptyfs_hash;	/* hash chain */
     92      1.1  jdolecek 	struct vnode	*ptyfs_vnode;	/* vnode associated with this ptyfsnode */
     93      1.1  jdolecek 	ptyfstype	ptyfs_type;	/* type of ptyfs node */
     94      1.1  jdolecek 	int		ptyfs_pty;	/* the pty index */
     95      1.1  jdolecek 	u_long		ptyfs_fileno;	/* unique file id */
     96      1.1  jdolecek 	int		ptyfs_flag;	/* status flag for times */
     97      1.1  jdolecek #define	PTYFS_ACCESS	1
     98      1.1  jdolecek #define	PTYFS_MODIFY	2
     99      1.1  jdolecek #define	PTYFS_CHANGE	4
    100      1.1  jdolecek 	/* Attribute information */
    101      1.1  jdolecek 	uid_t		ptyfs_uid;
    102      1.1  jdolecek 	gid_t		ptyfs_gid;
    103      1.1  jdolecek 	mode_t		ptyfs_mode;
    104      1.1  jdolecek 	int		ptyfs_flags;
    105      1.1  jdolecek 	struct timespec	ptyfs_ctime, ptyfs_mtime, ptyfs_atime, ptyfs_birthtime;
    106      1.1  jdolecek };
    107      1.1  jdolecek 
    108      1.2  christos struct ptyfsmount {
    109      1.2  christos 	gid_t pmnt_gid;
    110      1.2  christos 	mode_t pmnt_mode;
    111  1.7.4.1     skrll 	int pmnt_flags;
    112      1.2  christos };
    113      1.2  christos 
    114      1.2  christos #define VFSTOPTY(mp)	((struct ptyfsmount *)(mp)->mnt_data)
    115      1.2  christos 
    116      1.1  jdolecek #endif /* _KERNEL */
    117      1.1  jdolecek 
    118      1.2  christos struct ptyfs_args {
    119      1.2  christos 	int version;
    120      1.2  christos 	gid_t gid;
    121      1.2  christos 	mode_t mode;
    122  1.7.4.1     skrll 	int flags;
    123      1.2  christos };
    124      1.2  christos 
    125  1.7.4.1     skrll #define PTYFS_ARGSVERSION	2
    126  1.7.4.1     skrll 
    127  1.7.4.1     skrll #define PTYFSMNT_CHROOT		0x01
    128  1.7.4.1     skrll 
    129  1.7.4.1     skrll #define PTYFSMNT_BITS "\177\20" \
    130  1.7.4.1     skrll     "b\00chroot\0"
    131      1.2  christos 
    132      1.1  jdolecek /*
    133      1.1  jdolecek  * Kernel stuff follows
    134      1.1  jdolecek  */
    135      1.1  jdolecek #ifdef _KERNEL
    136      1.1  jdolecek 
    137      1.1  jdolecek #define UIO_MX 32
    138      1.1  jdolecek 
    139      1.1  jdolecek #define PTYFS_FILENO(pty, type) \
    140      1.3    atatat     ((type == PTYFSroot) ? 2 : \
    141      1.3    atatat      ((((pty) + 1) * 2 + (((type) == PTYFSpts) ? 1 : 2))))
    142      1.1  jdolecek 
    143      1.1  jdolecek #define PTYFS_MAKEDEV(ptyfs) \
    144      1.1  jdolecek     pty_makedev((ptyfs)->ptyfs_type == PTYFSpts ? 't' : 'p', (ptyfs)->ptyfs_pty)
    145      1.1  jdolecek 
    146      1.4  christos #define PTYFS_ITIMES(ptyfs, acc, mod, cre) \
    147      1.4  christos    while ((ptyfs)->ptyfs_flag & (PTYFS_ACCESS|PTYFS_CHANGE|PTYFS_MODIFY)) \
    148      1.4  christos 	ptyfs_itimes(ptyfs, acc, mod, cre)
    149      1.1  jdolecek /*
    150      1.1  jdolecek  * Convert between ptyfsnode vnode
    151      1.1  jdolecek  */
    152      1.1  jdolecek #define VTOPTYFS(vp)	((struct ptyfsnode *)(vp)->v_data)
    153      1.1  jdolecek #define PTYFSTOV(ptyfs)	((ptyfs)->ptyfs_vnode)
    154      1.1  jdolecek 
    155      1.1  jdolecek int ptyfs_freevp(struct vnode *);
    156      1.1  jdolecek int ptyfs_allocvp(struct mount *, struct vnode **, ptyfstype, int,
    157      1.6  christos     struct lwp *);
    158      1.1  jdolecek void ptyfs_hashinit(void);
    159      1.1  jdolecek void ptyfs_hashreinit(void);
    160      1.1  jdolecek void ptyfs_hashdone(void);
    161      1.4  christos void ptyfs_itimes(struct ptyfsnode *, const struct timespec *,
    162      1.4  christos     const struct timespec *, const struct timespec *);
    163      1.1  jdolecek 
    164      1.1  jdolecek extern int (**ptyfs_vnodeop_p)(void *);
    165      1.1  jdolecek extern struct vfsops ptyfs_vfsops;
    166      1.1  jdolecek 
    167      1.1  jdolecek int	ptyfs_root(struct mount *, struct vnode **);
    168      1.1  jdolecek 
    169      1.1  jdolecek #endif /* _KERNEL */
    170      1.5  christos #endif /* _FS_PTYFS_PTYFS_H_ */
    171