/* $NetBSD: ptyfs.h,v 1.16 2020/11/27 14:43:57 christos Exp $ */ /* * Copyright (c) 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed 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. 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. * * @(#)procfs.h 8.9 (Berkeley) 5/14/95 */ /* * Copyright (c) 1993 Jan-Simon Pendry * * This code is derived from software contributed 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. * * @(#)procfs.h 8.9 (Berkeley) 5/14/95 */ #ifndef _FS_PTYFS_PTYFS_H_ #define _FS_PTYFS_PTYFS_H_ #ifdef _KERNEL /* * The different types of node in a ptyfs filesystem */ typedef enum { PTYFSpts, /* The slave side of a pty */ PTYFSptc, /* The controlling side of a pty */ PTYFSroot, /* the filesystem root */ } ptyfstype; /* * control data for the proc file system. */ struct ptyfskey { ptyfstype ptk_type; /* type of ptyfs node */ int ptk_pty; /* the pty index */ }; struct ptyfsnode { SLIST_ENTRY(ptyfsnode) ptyfs_hash; /* hash chain */ struct ptyfskey ptyfs_key; #define ptyfs_type ptyfs_key.ptk_type #define ptyfs_pty ptyfs_key.ptk_pty u_long ptyfs_fileno; /* unique file id */ int ptyfs_status; /* status flag for times */ #define PTYFS_ACCESS 1 #define PTYFS_MODIFY 2 #define PTYFS_CHANGE 4 /* Attribute information */ uid_t ptyfs_uid; gid_t ptyfs_gid; mode_t ptyfs_mode; int ptyfs_flags; struct timespec ptyfs_ctime, ptyfs_mtime, ptyfs_atime, ptyfs_birthtime; }; struct ptyfsmount { kmutex_t pmnt_lock; TAILQ_ENTRY(ptyfsmount) pmnt_le; struct mount *pmnt_mp; gid_t pmnt_gid; mode_t pmnt_mode; int pmnt_flags; int pmnt_bitmap_size; uint8_t *pmnt_bitmap; }; #define VFSTOPTY(mp) ((struct ptyfsmount *)(mp)->mnt_data) #endif /* _KERNEL */ struct ptyfs_args { int version; gid_t gid; mode_t mode; int flags; }; #define PTYFS_ARGSVERSION 2 /* * Kernel stuff follows */ #ifdef _KERNEL #define UIO_MX 32 #define PTYFS_FILENO(type, pty) \ ((type == PTYFSroot) ? 2 : \ ((((pty) + 1) * 2 + (((type) == PTYFSpts) ? 1 : 2)))) #define PTYFS_MAKEDEV(ptyfs) \ pty_makedev((ptyfs)->ptyfs_type == PTYFSpts ? 't' : 'p', (ptyfs)->ptyfs_pty) #define PTYFS_ITIMES(ptyfs, acc, mod, cre) \ while ((ptyfs)->ptyfs_status & (PTYFS_ACCESS|PTYFS_CHANGE|PTYFS_MODIFY)) \ ptyfs_itimes(ptyfs, acc, mod, cre) /* * Convert between ptyfsnode vnode */ #define VTOPTYFS(vp) ((struct ptyfsnode *)(vp)->v_data) void ptyfs_set_active(struct mount *, int); void ptyfs_clr_active(struct mount *, int); int ptyfs_next_active(struct mount *, int); int ptyfs_allocvp(struct mount *, struct vnode **, ptyfstype, int); void ptyfs_hashinit(void); void ptyfs_hashdone(void); struct ptyfsnode *ptyfs_get_node(ptyfstype, int); void ptyfs_itimes(struct ptyfsnode *, const struct timespec *, const struct timespec *, const struct timespec *); extern int (**ptyfs_vnodeop_p)(void *); extern struct vfsops ptyfs_vfsops; int ptyfs_root(struct mount *, int, struct vnode **); #endif /* _KERNEL */ #endif /* _FS_PTYFS_PTYFS_H_ */
