158 lines
5.5 KiB
C
158 lines
5.5 KiB
C
/* $NetBSD: ptyfs.h,v 1.3 2004/12/16 05:30:18 atatat Exp $ */
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/*
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* Copyright (c) 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Jan-Simon Pendry.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)procfs.h 8.9 (Berkeley) 5/14/95
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*/
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/*
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* Copyright (c) 1993 Jan-Simon Pendry
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*
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* This code is derived from software contributed to Berkeley by
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* Jan-Simon Pendry.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)procfs.h 8.9 (Berkeley) 5/14/95
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*/
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#ifdef _KERNEL
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/*
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* The different types of node in a ptyfs filesystem
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*/
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typedef enum {
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PTYFSpts, /* The slave side of a pty */
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PTYFSptc, /* The controlling side of a pty */
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PTYFSroot, /* the filesystem root */
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} ptyfstype;
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/*
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* control data for the proc file system.
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*/
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struct ptyfsnode {
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LIST_ENTRY(ptyfsnode) ptyfs_hash; /* hash chain */
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struct vnode *ptyfs_vnode; /* vnode associated with this ptyfsnode */
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ptyfstype ptyfs_type; /* type of ptyfs node */
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int ptyfs_pty; /* the pty index */
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u_long ptyfs_fileno; /* unique file id */
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int ptyfs_flag; /* status flag for times */
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#define PTYFS_ACCESS 1
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#define PTYFS_MODIFY 2
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#define PTYFS_CHANGE 4
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/* Attribute information */
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uid_t ptyfs_uid;
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gid_t ptyfs_gid;
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mode_t ptyfs_mode;
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int ptyfs_flags;
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struct timespec ptyfs_ctime, ptyfs_mtime, ptyfs_atime, ptyfs_birthtime;
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};
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struct ptyfsmount {
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gid_t pmnt_gid;
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mode_t pmnt_mode;
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};
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#define VFSTOPTY(mp) ((struct ptyfsmount *)(mp)->mnt_data)
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#endif /* _KERNEL */
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struct ptyfs_args {
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int version;
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gid_t gid;
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mode_t mode;
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};
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#define PTYFS_ARGSVERSION 1
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/*
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* Kernel stuff follows
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*/
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#ifdef _KERNEL
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#define UIO_MX 32
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#define PTYFS_FILENO(pty, type) \
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((type == PTYFSroot) ? 2 : \
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((((pty) + 1) * 2 + (((type) == PTYFSpts) ? 1 : 2))))
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#define PTYFS_MAKEDEV(ptyfs) \
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pty_makedev((ptyfs)->ptyfs_type == PTYFSpts ? 't' : 'p', (ptyfs)->ptyfs_pty)
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/*
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* Convert between ptyfsnode vnode
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*/
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#define VTOPTYFS(vp) ((struct ptyfsnode *)(vp)->v_data)
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#define PTYFSTOV(ptyfs) ((ptyfs)->ptyfs_vnode)
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int ptyfs_freevp(struct vnode *);
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int ptyfs_allocvp(struct mount *, struct vnode **, ptyfstype, int,
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struct proc *);
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void ptyfs_hashinit(void);
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void ptyfs_hashreinit(void);
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void ptyfs_hashdone(void);
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extern int (**ptyfs_vnodeop_p)(void *);
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extern struct vfsops ptyfs_vfsops;
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int ptyfs_root(struct mount *, struct vnode **);
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#ifdef SYSCTL_SETUP_PROTO
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SYSCTL_SETUP_PROTO(sysctl_vfs_ptyfs_setup);
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#endif /* SYSCTL_SETUP_PROTO */
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#endif /* _KERNEL */
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