1 /* 2 * Copyright (c) 1990, 1992 Jan-Simon Pendry 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Jan-Simon Pendry. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * $Id: kernfs.h,v 1.4 1993/05/28 16:47:02 cgd Exp $ 37 */ 38 39 #ifdef KERNEL 40 struct kernfs_mount { 41 struct vnode *kf_root; /* Root node */ 42 }; 43 44 struct kernfs_node { 45 struct kernfs_target *kf_kt; 46 }; 47 48 #define KSTRING 256 /* Largest I/O available via this filesystem */ 49 #define UIO_MX 32 50 51 struct kernfs_target { 52 char *kt_name; 53 void *kt_data; 54 #define KTT_NULL 1 55 #define KTT_TIME 5 56 #define KTT_INT 17 57 #define KTT_STRING 31 58 #define KTT_HOSTNAME 47 59 #define KTT_AVENRUN 53 60 int kt_tag; 61 #define KTM_RO_PERMS (S_IRUSR|S_IRGRP|S_IROTH) 62 #define KTM_RW_PERMS (S_IWUSR|S_IRUSR|S_IRGRP|S_IWGRP| \ 63 S_IROTH|S_IWOTH) 64 #define KTM_DIR_PERMS (S_IRUSR|S_IXUSR|S_IRGRP|S_IXGRP| \ 65 S_IROTH|S_IXOTH) 66 #define KTM_MASK_PERMS (~(S_IWGRP|S_IWOTH)) 67 u_short kt_maxperms; 68 int kt_vtype; 69 u_short kt_perms; 70 uid_t kt_uid; 71 gid_t kt_gid; 72 }; 73 74 #define DIR_TARGET(name, data, tag, perms) \ 75 { name, data, tag, /*max*/perms, VDIR, perms & KTM_MASK_PERMS, 0, 0 }, 76 #define REG_TARGET(name, data, tag, perms) \ 77 { name, data, tag, /*max*/perms, VREG, perms & KTM_MASK_PERMS, 0, 0 }, 78 #define BLK_TARGET(name, data, tag, perms) \ 79 { name, data, tag, /*max*/perms, VBLK, perms & KTM_MASK_PERMS, 0, 0 }, 80 #define CHR_TARGET(name, data, tag, perms) \ 81 { name, data, tag, /*max*/perms, VCHR, perms & KTM_MASK_PERMS, 0, 0 }, 82 83 84 #define VFSTOKERNFS(mp) ((struct kernfs_mount *)((mp)->mnt_data)) 85 #define VTOKERN(vp) ((struct kernfs_node *)(vp)->v_data) 86 87 extern struct vnodeops kernfs_vnodeops; 88 extern struct vfsops kernfs_vfsops; 89 90 extern struct vnode *rrootdevvp; 91 92 struct kernfs_target kernfs_targets[]; 93 #define KERNFS_TARGET_ROOT 0 94 95 #endif /* KERNEL */ 96