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Annotation of Net2/miscfs/kernfs/kernfs.h, revision 1.1.1.2

1.1       root        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:  *
1.1.1.2 ! root       36:  *     kernfs.h,v 1.4 1993/05/28 16:47:02 cgd Exp
1.1       root       37:  */
                     38: 
                     39: #ifdef KERNEL
                     40: struct kernfs_mount {
                     41:        struct vnode    *kf_root;       /* Root node */
                     42: };
                     43: 
                     44: struct kernfs_node {
1.1.1.2 ! root       45:        struct kernfs_target *kf_kt;
1.1       root       46: };
                     47: 
1.1.1.2 ! root       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: 
1.1       root       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;
1.1.1.2 ! root       91: 
        !            92: struct kernfs_target kernfs_targets[];
        !            93: #define KERNFS_TARGET_ROOT     0
        !            94: 
1.1       root       95: #endif /* KERNEL */

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