1 /* 2 * Copyright (c) 1992, 1993 3 * The Regents of the University of California. All rights reserved. 4 * Copyright (c) 2000 5 * Poul-Henning Kamp. All rights reserved. 6 * 7 * This code is derived from software donated to Berkeley by 8 * Jan-Simon Pendry. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)kernfs.h 8.6 (Berkeley) 3/29/95 32 * From: FreeBSD: src/sys/miscfs/kernfs/kernfs.h 1.14 33 * 34 * $FreeBSD$ 35 */ 36 37 #ifdef _KERNEL 38 39 #ifdef DEVFS_INTERN 40 41 #define NDEVINO 1024 42 43 MALLOC_DECLARE(M_DEVFS); 44 45 struct devfs_dirent { 46 int de_inode; 47 int de_flags; 48 #define DE_ORPHAN 0x1 49 #define DE_DOT 0x2 50 #define DE_DOTDOT 0x4 51 struct dirent *de_dirent; 52 TAILQ_ENTRY(devfs_dirent) de_list; 53 TAILQ_HEAD(, devfs_dirent) de_dlist; 54 struct devfs_dirent *de_dir; 55 int de_links; 56 mode_t de_mode; 57 uid_t de_uid; 58 gid_t de_gid; 59 struct timespec de_atime; 60 struct timespec de_mtime; 61 struct timespec de_ctime; 62 struct vnode *de_vnode; 63 char * de_symlink; 64 }; 65 66 struct devfs_node { 67 struct kern_target *kf_kt; 68 }; 69 70 struct devfs_mount { 71 struct vnode *dm_root; /* Root node */ 72 struct devfs_dirent *dm_rootdir; 73 struct devfs_dirent *dm_basedir; 74 unsigned dm_generation; 75 struct devfs_dirent *dm_dirent[NDEVINO]; 76 #define DE_DELETED ((struct devfs_dirent *)&devfs_inot[0]) 77 int dm_inode; 78 }; 79 80 81 extern dev_t devfs_inot[NDEVINO]; 82 extern int devfs_nino; 83 extern unsigned devfs_generation; 84 85 86 #define VFSTODEVFS(mp) ((struct devfs_mount *)((mp)->mnt_data)) 87 88 extern vop_t **devfs_vnodeop_p; 89 extern vop_t **devfs_specop_p; 90 91 int devfs_allocv __P((struct devfs_dirent *de, struct mount *mp, struct vnode **vpp, struct proc *p)); 92 struct devfs_dirent * devfs_find __P((struct devfs_dirent *dd, const char *name, int namelen)); 93 int devfs_populate __P((struct devfs_mount *dm)); 94 struct devfs_dirent * devfs_newdirent __P((char *name, int namelen)); 95 void devfs_purge __P((struct devfs_dirent *dd)); 96 struct devfs_dirent * devfs_vmkdir __P((char *name, int namelen, 97 struct devfs_dirent *dotdot)); 98 #endif /* DEVFS_INTERN */ 99 #endif /* _KERNEL */ 100