Annotation of XNU/bsd/include/protocols/dumprestore.h, revision 1.1.1.1

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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