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Annotation of XNU/bsd/include/protocols/dumprestore.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * The contents of this file constitute Original Code as defined in and
        !             7:  * are subject to the Apple Public Source License Version 1.1 (the
        !             8:  * "License").  You may not use this file except in compliance with the
        !             9:  * License.  Please obtain a copy of the License at
        !            10:  * http://www.apple.com/publicsource and read it before using this file.
        !            11:  * 
        !            12:  * This Original Code and all software distributed under the License are
        !            13:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            14:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            15:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            16:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            17:  * License for the specific language governing rights and limitations
        !            18:  * under the License.
        !            19:  * 
        !            20:  * @APPLE_LICENSE_HEADER_END@
        !            21:  */
        !            22: /*
        !            23:  * Copyright (c) 1980, 1993
        !            24:  *     The Regents of the University of California.  All rights reserved.
        !            25:  * (c) UNIX System Laboratories, Inc.
        !            26:  * All or some portions of this file are derived from material licensed
        !            27:  * to the University of California by American Telephone and Telegraph
        !            28:  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
        !            29:  * the permission of UNIX System Laboratories, Inc.
        !            30:  *
        !            31:  * Redistribution and use in source and binary forms, with or without
        !            32:  * modification, are permitted provided that the following conditions
        !            33:  * are met:
        !            34:  * 1. Redistributions of source code must retain the above copyright
        !            35:  *    notice, this list of conditions and the following disclaimer.
        !            36:  * 2. Redistributions in binary form must reproduce the above copyright
        !            37:  *    notice, this list of conditions and the following disclaimer in the
        !            38:  *    documentation and/or other materials provided with the distribution.
        !            39:  * 3. All advertising materials mentioning features or use of this software
        !            40:  *    must display the following acknowledgement:
        !            41:  *     This product includes software developed by the University of
        !            42:  *     California, Berkeley and its contributors.
        !            43:  * 4. Neither the name of the University nor the names of its contributors
        !            44:  *    may be used to endorse or promote products derived from this software
        !            45:  *    without specific prior written permission.
        !            46:  *
        !            47:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            48:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            49:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            50:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            51:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            52:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            53:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            54:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            55:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            56:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            57:  * SUCH DAMAGE.
        !            58:  *
        !            59:  *     @(#)dumprestore.h       8.2 (Berkeley) 1/21/94
        !            60:  */
        !            61: 
        !            62: #ifndef _DUMPRESTORE_H_
        !            63: #define _DUMPRESTORE_H_
        !            64: 
        !            65: /*
        !            66:  * TP_BSIZE is the size of file blocks on the dump tapes.
        !            67:  * Note that TP_BSIZE must be a multiple of DEV_BSIZE.
        !            68:  *
        !            69:  * NTREC is the number of TP_BSIZE blocks that are written
        !            70:  * in each tape record. HIGHDENSITYTREC is the number of
        !            71:  * TP_BSIZE blocks that are written in each tape record on
        !            72:  * 6250 BPI or higher density tapes.
        !            73:  *
        !            74:  * TP_NINDIR is the number of indirect pointers in a TS_INODE
        !            75:  * or TS_ADDR record. Note that it must be a power of two.
        !            76:  */
        !            77: #define TP_BSIZE       1024
        !            78: #define NTREC          10
        !            79: #define HIGHDENSITYTREC        32
        !            80: #define TP_NINDIR      (TP_BSIZE/2)
        !            81: #define LBLSIZE                16
        !            82: #define NAMELEN                64
        !            83: 
        !            84: #define OFS_MAGIC      (int)60011
        !            85: #define NFS_MAGIC      (int)60012
        !            86: #define CHECKSUM       (int)84446
        !            87: 
        !            88: union u_spcl {
        !            89:        char dummy[TP_BSIZE];
        !            90:        struct  s_spcl {
        !            91:                long    c_type;             /* record type (see below) */
        !            92:                time_t  c_date;             /* date of this dump */
        !            93:                time_t  c_ddate;            /* date of previous dump */
        !            94:                long    c_volume;           /* dump volume number */
        !            95:                daddr_t c_tapea;            /* logical block of this record */
        !            96:                ino_t   c_inumber;          /* number of inode */
        !            97:                long    c_magic;            /* magic number (see above) */
        !            98:                long    c_checksum;         /* record checksum */
        !            99:                struct  dinode  c_dinode;   /* ownership and mode of inode */
        !           100:                long    c_count;            /* number of valid c_addr entries */
        !           101:                char    c_addr[TP_NINDIR];  /* 1 => data; 0 => hole in inode */
        !           102:                char    c_label[LBLSIZE];   /* dump label */
        !           103:                long    c_level;            /* level of this dump */
        !           104:                char    c_filesys[NAMELEN]; /* name of dumpped file system */
        !           105:                char    c_dev[NAMELEN];     /* name of dumpped device */
        !           106:                char    c_host[NAMELEN];    /* name of dumpped host */
        !           107:                long    c_flags;            /* additional information */
        !           108:                long    c_firstrec;         /* first record on volume */
        !           109:                long    c_spare[32];        /* reserved for future uses */
        !           110:        } s_spcl;
        !           111: };
        !           112: 
        !           113: /*
        !           114:  * special record types
        !           115:  */
        !           116: #define TS_TAPE        1       /* dump tape header */
        !           117: #define TS_INODE       2       /* beginning of file record */
        !           118: #define TS_ADDR        4       /* continuation of file record */
        !           119: #define TS_BITS        3       /* map of inodes on tape */
        !           120: #define TS_CLRI        6       /* map of inodes deleted since last dump */
        !           121: #define TS_END         5       /* end of volume marker */
        !           122: 
        !           123: /*
        !           124:  * flag values
        !           125:  */
        !           126: #define DR_NEWHEADER   0x0001  /* new format tape header */
        !           127: #define DR_NEWINODEFMT 0x0002  /* new format inodes on tape */
        !           128: 
        !           129: #define        DUMPOUTFMT      "%-16s %c %s"           /* for printf */
        !           130:                                                /* name, level, ctime(date) */
        !           131: #define        DUMPINFMT       "%16s %c %[^\n]\n"      /* inverse for scanf */
        !           132: 
        !           133: #endif /* !_DUMPRESTORE_H_ */

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