[1765] | 1 | /*
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| 2 | * Copyright (c) 1987, 1988 Regents of the University of California.
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | * 1. Redistributions of source code must retain the above copyright
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| 9 | * notice, this list of conditions and the following disclaimer.
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| 10 | * 2. Redistributions in binary form must reproduce the above copyright
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| 11 | * notice, this list of conditions and the following disclaimer in the
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| 12 | * documentation and/or other materials provided with the distribution.
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| 13 | * 3. All advertising materials mentioning features or use of this software
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| 14 | * must display the following acknowledgment:
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| 15 | * This product includes software developed by the University of
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| 16 | * California, Berkeley and its contributors.
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| 17 | * 4. Neither the name of the University nor the names of its contributors
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| 18 | * may be used to endorse or promote products derived from this software
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| 19 | * without specific prior written permission.
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| 20 | *
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| 21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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| 22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| 24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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| 25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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| 27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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| 29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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| 30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 31 | * SUCH DAMAGE.
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| 32 | */
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| 33 |
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[2725] | 34 | #if ENABLE_FEATURE_OSF_LABEL
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[1765] | 35 |
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| 36 | #ifndef BSD_DISKMAGIC
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| 37 | #define BSD_DISKMAGIC ((uint32_t) 0x82564557)
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| 38 | #endif
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| 39 |
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| 40 | #ifndef BSD_MAXPARTITIONS
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| 41 | #define BSD_MAXPARTITIONS 16
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| 42 | #endif
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| 43 |
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| 44 | #define BSD_LINUX_BOOTDIR "/usr/ucb/mdec"
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| 45 |
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[3232] | 46 | #if defined(__alpha__) \
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| 47 | || defined(__powerpc__) \
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| 48 | || defined(__ia64__) \
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[1765] | 49 | || defined(__hppa__)
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[2725] | 50 | # define BSD_LABELSECTOR 0
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| 51 | # define BSD_LABELOFFSET 64
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[1765] | 52 | #else
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[3232] | 53 | # define BSD_LABELSECTOR 1
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| 54 | # define BSD_LABELOFFSET 0
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[1765] | 55 | #endif
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| 56 |
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| 57 | #define BSD_BBSIZE 8192 /* size of boot area, with label */
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| 58 | #define BSD_SBSIZE 8192 /* max size of fs superblock */
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| 59 |
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| 60 | struct xbsd_disklabel {
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| 61 | uint32_t d_magic; /* the magic number */
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| 62 | int16_t d_type; /* drive type */
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| 63 | int16_t d_subtype; /* controller/d_type specific */
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| 64 | char d_typename[16]; /* type name, e.g. "eagle" */
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[2725] | 65 | char d_packname[16]; /* pack identifier */
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| 66 | /* disk geometry: */
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[1765] | 67 | uint32_t d_secsize; /* # of bytes per sector */
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| 68 | uint32_t d_nsectors; /* # of data sectors per track */
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| 69 | uint32_t d_ntracks; /* # of tracks per cylinder */
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| 70 | uint32_t d_ncylinders; /* # of data cylinders per unit */
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| 71 | uint32_t d_secpercyl; /* # of data sectors per cylinder */
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| 72 | uint32_t d_secperunit; /* # of data sectors per unit */
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| 73 | /*
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| 74 | * Spares (bad sector replacements) below
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| 75 | * are not counted in d_nsectors or d_secpercyl.
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| 76 | * Spare sectors are assumed to be physical sectors
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| 77 | * which occupy space at the end of each track and/or cylinder.
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| 78 | */
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| 79 | uint16_t d_sparespertrack; /* # of spare sectors per track */
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| 80 | uint16_t d_sparespercyl; /* # of spare sectors per cylinder */
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| 81 | /*
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| 82 | * Alternate cylinders include maintenance, replacement,
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| 83 | * configuration description areas, etc.
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| 84 | */
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| 85 | uint32_t d_acylinders; /* # of alt. cylinders per unit */
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| 86 |
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[2725] | 87 | /* hardware characteristics: */
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[1765] | 88 | /*
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| 89 | * d_interleave, d_trackskew and d_cylskew describe perturbations
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| 90 | * in the media format used to compensate for a slow controller.
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| 91 | * Interleave is physical sector interleave, set up by the formatter
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| 92 | * or controller when formatting. When interleaving is in use,
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| 93 | * logically adjacent sectors are not physically contiguous,
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| 94 | * but instead are separated by some number of sectors.
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| 95 | * It is specified as the ratio of physical sectors traversed
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| 96 | * per logical sector. Thus an interleave of 1:1 implies contiguous
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| 97 | * layout, while 2:1 implies that logical sector 0 is separated
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| 98 | * by one sector from logical sector 1.
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| 99 | * d_trackskew is the offset of sector 0 on track N
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| 100 | * relative to sector 0 on track N-1 on the same cylinder.
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| 101 | * Finally, d_cylskew is the offset of sector 0 on cylinder N
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| 102 | * relative to sector 0 on cylinder N-1.
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| 103 | */
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| 104 | uint16_t d_rpm; /* rotational speed */
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| 105 | uint16_t d_interleave; /* hardware sector interleave */
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| 106 | uint16_t d_trackskew; /* sector 0 skew, per track */
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| 107 | uint16_t d_cylskew; /* sector 0 skew, per cylinder */
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| 108 | uint32_t d_headswitch; /* head switch time, usec */
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| 109 | uint32_t d_trkseek; /* track-to-track seek, usec */
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| 110 | uint32_t d_flags; /* generic flags */
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| 111 | #define NDDATA 5
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| 112 | uint32_t d_drivedata[NDDATA]; /* drive-type specific information */
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| 113 | #define NSPARE 5
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| 114 | uint32_t d_spare[NSPARE]; /* reserved for future use */
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| 115 | uint32_t d_magic2; /* the magic number (again) */
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| 116 | uint16_t d_checksum; /* xor of data incl. partitions */
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[2725] | 117 | /* filesystem and partition information: */
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[1765] | 118 | uint16_t d_npartitions; /* number of partitions in following */
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| 119 | uint32_t d_bbsize; /* size of boot area at sn0, bytes */
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| 120 | uint32_t d_sbsize; /* max size of fs superblock, bytes */
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[2725] | 121 | struct xbsd_partition { /* the partition table */
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[1765] | 122 | uint32_t p_size; /* number of sectors in partition */
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| 123 | uint32_t p_offset; /* starting sector */
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| 124 | uint32_t p_fsize; /* filesystem basic fragment size */
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| 125 | uint8_t p_fstype; /* filesystem type, see below */
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| 126 | uint8_t p_frag; /* filesystem fragments per block */
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| 127 | uint16_t p_cpg; /* filesystem cylinders per group */
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| 128 | } d_partitions[BSD_MAXPARTITIONS]; /* actually may be more */
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| 129 | };
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| 130 |
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| 131 | /* d_type values: */
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| 132 | #define BSD_DTYPE_SMD 1 /* SMD, XSMD; VAX hp/up */
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| 133 | #define BSD_DTYPE_MSCP 2 /* MSCP */
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| 134 | #define BSD_DTYPE_DEC 3 /* other DEC (rk, rl) */
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| 135 | #define BSD_DTYPE_SCSI 4 /* SCSI */
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| 136 | #define BSD_DTYPE_ESDI 5 /* ESDI interface */
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| 137 | #define BSD_DTYPE_ST506 6 /* ST506 etc. */
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| 138 | #define BSD_DTYPE_HPIB 7 /* CS/80 on HP-IB */
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| 139 | #define BSD_DTYPE_HPFL 8 /* HP Fiber-link */
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| 140 | #define BSD_DTYPE_FLOPPY 10 /* floppy */
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| 141 |
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| 142 | /* d_subtype values: */
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| 143 | #define BSD_DSTYPE_INDOSPART 0x8 /* is inside dos partition */
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| 144 | #define BSD_DSTYPE_DOSPART(s) ((s) & 3) /* dos partition number */
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| 145 | #define BSD_DSTYPE_GEOMETRY 0x10 /* drive params in label */
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| 146 |
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| 147 | static const char *const xbsd_dktypenames[] = {
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| 148 | "unknown",
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| 149 | "SMD",
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| 150 | "MSCP",
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| 151 | "old DEC",
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| 152 | "SCSI",
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| 153 | "ESDI",
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| 154 | "ST506",
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| 155 | "HP-IB",
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| 156 | "HP-FL",
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| 157 | "type 9",
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| 158 | "floppy",
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| 159 | 0
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| 160 | };
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| 161 |
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| 162 |
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| 163 | /*
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| 164 | * Filesystem type and version.
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| 165 | * Used to interpret other filesystem-specific
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| 166 | * per-partition information.
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| 167 | */
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| 168 | #define BSD_FS_UNUSED 0 /* unused */
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| 169 | #define BSD_FS_SWAP 1 /* swap */
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| 170 | #define BSD_FS_V6 2 /* Sixth Edition */
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| 171 | #define BSD_FS_V7 3 /* Seventh Edition */
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| 172 | #define BSD_FS_SYSV 4 /* System V */
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| 173 | #define BSD_FS_V71K 5 /* V7 with 1K blocks (4.1, 2.9) */
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| 174 | #define BSD_FS_V8 6 /* Eighth Edition, 4K blocks */
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| 175 | #define BSD_FS_BSDFFS 7 /* 4.2BSD fast file system */
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| 176 | #define BSD_FS_BSDLFS 9 /* 4.4BSD log-structured file system */
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| 177 | #define BSD_FS_OTHER 10 /* in use, but unknown/unsupported */
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| 178 | #define BSD_FS_HPFS 11 /* OS/2 high-performance file system */
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| 179 | #define BSD_FS_ISO9660 12 /* ISO-9660 filesystem (cdrom) */
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| 180 | #define BSD_FS_ISOFS BSD_FS_ISO9660
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| 181 | #define BSD_FS_BOOT 13 /* partition contains bootstrap */
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| 182 | #define BSD_FS_ADOS 14 /* AmigaDOS fast file system */
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| 183 | #define BSD_FS_HFS 15 /* Macintosh HFS */
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| 184 | #define BSD_FS_ADVFS 16 /* Digital Unix AdvFS */
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| 185 |
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| 186 | /* this is annoying, but it's also the way it is :-( */
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| 187 | #ifdef __alpha__
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| 188 | #define BSD_FS_EXT2 8 /* ext2 file system */
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| 189 | #else
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| 190 | #define BSD_FS_MSDOS 8 /* MS-DOS file system */
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| 191 | #endif
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| 192 |
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| 193 | static const char *const xbsd_fstypes[] = {
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| 194 | "\x00" "unused", /* BSD_FS_UNUSED */
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| 195 | "\x01" "swap", /* BSD_FS_SWAP */
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| 196 | "\x02" "Version 6", /* BSD_FS_V6 */
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| 197 | "\x03" "Version 7", /* BSD_FS_V7 */
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| 198 | "\x04" "System V", /* BSD_FS_SYSV */
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| 199 | "\x05" "4.1BSD", /* BSD_FS_V71K */
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| 200 | "\x06" "Eighth Edition", /* BSD_FS_V8 */
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| 201 | "\x07" "4.2BSD", /* BSD_FS_BSDFFS */
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| 202 | #ifdef __alpha__
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| 203 | "\x08" "ext2", /* BSD_FS_EXT2 */
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| 204 | #else
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| 205 | "\x08" "MS-DOS", /* BSD_FS_MSDOS */
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| 206 | #endif
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| 207 | "\x09" "4.4LFS", /* BSD_FS_BSDLFS */
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| 208 | "\x0a" "unknown", /* BSD_FS_OTHER */
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| 209 | "\x0b" "HPFS", /* BSD_FS_HPFS */
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| 210 | "\x0c" "ISO-9660", /* BSD_FS_ISO9660 */
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| 211 | "\x0d" "boot", /* BSD_FS_BOOT */
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| 212 | "\x0e" "ADOS", /* BSD_FS_ADOS */
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| 213 | "\x0f" "HFS", /* BSD_FS_HFS */
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| 214 | "\x10" "AdvFS", /* BSD_FS_ADVFS */
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| 215 | NULL
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| 216 | };
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| 217 |
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| 218 |
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| 219 | /*
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| 220 | * flags shared by various drives:
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| 221 | */
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| 222 | #define BSD_D_REMOVABLE 0x01 /* removable media */
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| 223 | #define BSD_D_ECC 0x02 /* supports ECC */
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| 224 | #define BSD_D_BADSECT 0x04 /* supports bad sector forw. */
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| 225 | #define BSD_D_RAMDISK 0x08 /* disk emulator */
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| 226 | #define BSD_D_CHAIN 0x10 /* can do back-back transfers */
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| 227 | #define BSD_D_DOSPART 0x20 /* within MSDOS partition */
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| 228 |
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| 229 | /*
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| 230 | Changes:
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| 231 | 19990319 - Arnaldo Carvalho de Melo <acme@conectiva.com.br> - i18n/nls
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| 232 |
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| 233 | 20000101 - David Huggins-Daines <dhuggins@linuxcare.com> - Better
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| 234 | support for OSF/1 disklabels on Alpha.
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| 235 | Also fixed unaligned accesses in alpha_bootblock_checksum()
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| 236 | */
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| 237 |
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| 238 | #define FREEBSD_PARTITION 0xa5
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| 239 | #define NETBSD_PARTITION 0xa9
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| 240 |
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| 241 | static void xbsd_delete_part(void);
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| 242 | static void xbsd_new_part(void);
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| 243 | static void xbsd_write_disklabel(void);
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| 244 | static int xbsd_create_disklabel(void);
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| 245 | static void xbsd_edit_disklabel(void);
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| 246 | static void xbsd_write_bootstrap(void);
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| 247 | static void xbsd_change_fstype(void);
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| 248 | static int xbsd_get_part_index(int max);
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| 249 | static int xbsd_check_new_partition(int *i);
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| 250 | static void xbsd_list_types(void);
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| 251 | static uint16_t xbsd_dkcksum(struct xbsd_disklabel *lp);
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| 252 | static int xbsd_initlabel(struct partition *p);
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| 253 | static int xbsd_readlabel(struct partition *p);
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| 254 | static int xbsd_writelabel(struct partition *p);
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| 255 |
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| 256 | #if defined(__alpha__)
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| 257 | static void alpha_bootblock_checksum(char *boot);
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| 258 | #endif
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| 259 |
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| 260 | #if !defined(__alpha__)
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| 261 | static int xbsd_translate_fstype(int linux_type);
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| 262 | static void xbsd_link_part(void);
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| 263 | static struct partition *xbsd_part;
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| 264 | static int xbsd_part_index;
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| 265 | #endif
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| 266 |
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| 267 |
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| 268 | /* Group big globals data and allocate it in one go */
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| 269 | struct bsd_globals {
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| 270 | /* We access this through a uint64_t * when checksumming */
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| 271 | /* hopefully xmalloc gives us required alignment */
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| 272 | char disklabelbuffer[BSD_BBSIZE];
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| 273 | struct xbsd_disklabel xbsd_dlabel;
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| 274 | };
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| 275 |
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| 276 | static struct bsd_globals *bsd_globals_ptr;
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| 277 |
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| 278 | #define disklabelbuffer (bsd_globals_ptr->disklabelbuffer)
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| 279 | #define xbsd_dlabel (bsd_globals_ptr->xbsd_dlabel)
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| 280 |
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| 281 |
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| 282 | /* Code */
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| 283 |
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| 284 | #define bsd_cround(n) \
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| 285 | (display_in_cyl_units ? ((n)/xbsd_dlabel.d_secpercyl) + 1 : (n))
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| 286 |
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| 287 | /*
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| 288 | * Test whether the whole disk has BSD disk label magic.
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| 289 | *
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| 290 | * Note: often reformatting with DOS-type label leaves the BSD magic,
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| 291 | * so this does not mean that there is a BSD disk label.
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| 292 | */
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| 293 | static int
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| 294 | check_osf_label(void)
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| 295 | {
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| 296 | if (xbsd_readlabel(NULL) == 0)
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| 297 | return 0;
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| 298 | return 1;
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| 299 | }
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| 300 |
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| 301 | static int
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| 302 | bsd_trydev(const char * dev)
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| 303 | {
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| 304 | if (xbsd_readlabel(NULL) == 0)
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| 305 | return -1;
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| 306 | printf("\nBSD label for device: %s\n", dev);
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| 307 | xbsd_print_disklabel(0);
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| 308 | return 0;
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| 309 | }
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| 310 |
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| 311 | static void
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| 312 | bsd_menu(void)
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| 313 | {
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| 314 | puts("Command Action");
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| 315 | puts("d\tdelete a BSD partition");
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| 316 | puts("e\tedit drive data");
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| 317 | puts("i\tinstall bootstrap");
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| 318 | puts("l\tlist known filesystem types");
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| 319 | puts("n\tadd a new BSD partition");
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| 320 | puts("p\tprint BSD partition table");
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| 321 | puts("q\tquit without saving changes");
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| 322 | puts("r\treturn to main menu");
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| 323 | puts("s\tshow complete disklabel");
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| 324 | puts("t\tchange a partition's filesystem id");
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| 325 | puts("u\tchange units (cylinders/sectors)");
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| 326 | puts("w\twrite disklabel to disk");
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| 327 | #if !defined(__alpha__)
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| 328 | puts("x\tlink BSD partition to non-BSD partition");
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| 329 | #endif
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| 330 | }
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| 331 |
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| 332 | #if !defined(__alpha__)
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| 333 | static int
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| 334 | hidden(int type)
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| 335 | {
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| 336 | return type ^ 0x10;
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| 337 | }
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| 338 |
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| 339 | static int
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| 340 | is_bsd_partition_type(int type)
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| 341 | {
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| 342 | return (type == FREEBSD_PARTITION ||
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| 343 | type == hidden(FREEBSD_PARTITION) ||
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| 344 | type == NETBSD_PARTITION ||
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| 345 | type == hidden(NETBSD_PARTITION));
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| 346 | }
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| 347 | #endif
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| 348 |
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| 349 | static void
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| 350 | bsd_select(void)
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| 351 | {
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| 352 | #if !defined(__alpha__)
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| 353 | int t, ss;
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| 354 | struct partition *p;
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| 355 |
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| 356 | for (t = 0; t < 4; t++) {
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| 357 | p = get_part_table(t);
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| 358 | if (p && is_bsd_partition_type(p->sys_ind)) {
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| 359 | xbsd_part = p;
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| 360 | xbsd_part_index = t;
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| 361 | ss = get_start_sect(xbsd_part);
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| 362 | if (ss == 0) {
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| 363 | printf("Partition %s has invalid starting sector 0\n",
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| 364 | partname(disk_device, t+1, 0));
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| 365 | return;
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| 366 | }
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[2725] | 367 | printf("Reading disklabel of %s at sector %u\n",
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[1765] | 368 | partname(disk_device, t+1, 0), ss + BSD_LABELSECTOR);
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[3621] | 369 | if (xbsd_readlabel(xbsd_part) == 0) {
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[1765] | 370 | if (xbsd_create_disklabel() == 0)
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| 371 | return;
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| 372 | break;
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[3621] | 373 | }
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[1765] | 374 | }
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| 375 | }
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| 376 |
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| 377 | if (t == 4) {
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| 378 | printf("There is no *BSD partition on %s\n", disk_device);
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| 379 | return;
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| 380 | }
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| 381 |
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| 382 | #elif defined(__alpha__)
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| 383 |
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| 384 | if (xbsd_readlabel(NULL) == 0)
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| 385 | if (xbsd_create_disklabel() == 0)
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| 386 | exit(EXIT_SUCCESS);
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| 387 |
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| 388 | #endif
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| 389 |
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| 390 | while (1) {
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[2725] | 391 | bb_putchar('\n');
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[1765] | 392 | switch (tolower(read_nonempty("BSD disklabel command (m for help): "))) {
|
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| 393 | case 'd':
|
---|
| 394 | xbsd_delete_part();
|
---|
| 395 | break;
|
---|
| 396 | case 'e':
|
---|
| 397 | xbsd_edit_disklabel();
|
---|
| 398 | break;
|
---|
| 399 | case 'i':
|
---|
| 400 | xbsd_write_bootstrap();
|
---|
| 401 | break;
|
---|
| 402 | case 'l':
|
---|
| 403 | xbsd_list_types();
|
---|
| 404 | break;
|
---|
| 405 | case 'n':
|
---|
| 406 | xbsd_new_part();
|
---|
| 407 | break;
|
---|
| 408 | case 'p':
|
---|
| 409 | xbsd_print_disklabel(0);
|
---|
| 410 | break;
|
---|
| 411 | case 'q':
|
---|
[2725] | 412 | if (ENABLE_FEATURE_CLEAN_UP)
|
---|
| 413 | close_dev_fd();
|
---|
[1765] | 414 | exit(EXIT_SUCCESS);
|
---|
| 415 | case 'r':
|
---|
| 416 | return;
|
---|
| 417 | case 's':
|
---|
| 418 | xbsd_print_disklabel(1);
|
---|
| 419 | break;
|
---|
| 420 | case 't':
|
---|
| 421 | xbsd_change_fstype();
|
---|
| 422 | break;
|
---|
| 423 | case 'u':
|
---|
| 424 | change_units();
|
---|
| 425 | break;
|
---|
| 426 | case 'w':
|
---|
| 427 | xbsd_write_disklabel();
|
---|
| 428 | break;
|
---|
| 429 | #if !defined(__alpha__)
|
---|
| 430 | case 'x':
|
---|
| 431 | xbsd_link_part();
|
---|
| 432 | break;
|
---|
| 433 | #endif
|
---|
| 434 | default:
|
---|
| 435 | bsd_menu();
|
---|
| 436 | break;
|
---|
| 437 | }
|
---|
| 438 | }
|
---|
| 439 | }
|
---|
| 440 |
|
---|
| 441 | static void
|
---|
| 442 | xbsd_delete_part(void)
|
---|
| 443 | {
|
---|
| 444 | int i;
|
---|
| 445 |
|
---|
| 446 | i = xbsd_get_part_index(xbsd_dlabel.d_npartitions);
|
---|
| 447 | xbsd_dlabel.d_partitions[i].p_size = 0;
|
---|
| 448 | xbsd_dlabel.d_partitions[i].p_offset = 0;
|
---|
| 449 | xbsd_dlabel.d_partitions[i].p_fstype = BSD_FS_UNUSED;
|
---|
| 450 | if (xbsd_dlabel.d_npartitions == i + 1)
|
---|
| 451 | while (xbsd_dlabel.d_partitions[xbsd_dlabel.d_npartitions-1].p_size == 0)
|
---|
| 452 | xbsd_dlabel.d_npartitions--;
|
---|
| 453 | }
|
---|
| 454 |
|
---|
| 455 | static void
|
---|
| 456 | xbsd_new_part(void)
|
---|
| 457 | {
|
---|
| 458 | off_t begin, end;
|
---|
| 459 | char mesg[256];
|
---|
| 460 | int i;
|
---|
| 461 |
|
---|
| 462 | if (!xbsd_check_new_partition(&i))
|
---|
| 463 | return;
|
---|
| 464 |
|
---|
| 465 | #if !defined(__alpha__) && !defined(__powerpc__) && !defined(__hppa__)
|
---|
| 466 | begin = get_start_sect(xbsd_part);
|
---|
| 467 | end = begin + get_nr_sects(xbsd_part) - 1;
|
---|
| 468 | #else
|
---|
| 469 | begin = 0;
|
---|
| 470 | end = xbsd_dlabel.d_secperunit - 1;
|
---|
| 471 | #endif
|
---|
| 472 |
|
---|
| 473 | snprintf(mesg, sizeof(mesg), "First %s", str_units(SINGULAR));
|
---|
| 474 | begin = read_int(bsd_cround(begin), bsd_cround(begin), bsd_cround(end),
|
---|
| 475 | 0, mesg);
|
---|
| 476 |
|
---|
| 477 | if (display_in_cyl_units)
|
---|
| 478 | begin = (begin - 1) * xbsd_dlabel.d_secpercyl;
|
---|
| 479 |
|
---|
| 480 | snprintf(mesg, sizeof(mesg), "Last %s or +size or +sizeM or +sizeK",
|
---|
| 481 | str_units(SINGULAR));
|
---|
| 482 | end = read_int(bsd_cround(begin), bsd_cround(end), bsd_cround(end),
|
---|
| 483 | bsd_cround(begin), mesg);
|
---|
| 484 |
|
---|
| 485 | if (display_in_cyl_units)
|
---|
| 486 | end = end * xbsd_dlabel.d_secpercyl - 1;
|
---|
| 487 |
|
---|
| 488 | xbsd_dlabel.d_partitions[i].p_size = end - begin + 1;
|
---|
| 489 | xbsd_dlabel.d_partitions[i].p_offset = begin;
|
---|
| 490 | xbsd_dlabel.d_partitions[i].p_fstype = BSD_FS_UNUSED;
|
---|
| 491 | }
|
---|
| 492 |
|
---|
| 493 | static void
|
---|
| 494 | xbsd_print_disklabel(int show_all)
|
---|
| 495 | {
|
---|
| 496 | struct xbsd_disklabel *lp = &xbsd_dlabel;
|
---|
| 497 | struct xbsd_partition *pp;
|
---|
| 498 | int i, j;
|
---|
| 499 |
|
---|
| 500 | if (show_all) {
|
---|
[2725] | 501 | static const int d_masks[] = { BSD_D_REMOVABLE, BSD_D_ECC, BSD_D_BADSECT };
|
---|
| 502 |
|
---|
[1765] | 503 | #if defined(__alpha__)
|
---|
| 504 | printf("# %s:\n", disk_device);
|
---|
| 505 | #else
|
---|
| 506 | printf("# %s:\n", partname(disk_device, xbsd_part_index+1, 0));
|
---|
| 507 | #endif
|
---|
| 508 | if ((unsigned) lp->d_type < ARRAY_SIZE(xbsd_dktypenames)-1)
|
---|
| 509 | printf("type: %s\n", xbsd_dktypenames[lp->d_type]);
|
---|
| 510 | else
|
---|
[2725] | 511 | printf("type: %u\n", lp->d_type);
|
---|
[1765] | 512 | printf("disk: %.*s\n", (int) sizeof(lp->d_typename), lp->d_typename);
|
---|
| 513 | printf("label: %.*s\n", (int) sizeof(lp->d_packname), lp->d_packname);
|
---|
[2725] | 514 | printf("flags: ");
|
---|
| 515 | print_flags_separated(d_masks, "removable\0""ecc\0""badsect\0", lp->d_flags, " ");
|
---|
| 516 | bb_putchar('\n');
|
---|
[1765] | 517 | /* On various machines the fields of *lp are short/int/long */
|
---|
| 518 | /* In order to avoid problems, we cast them all to long. */
|
---|
[2725] | 519 | printf("bytes/sector: %lu\n", (long) lp->d_secsize);
|
---|
| 520 | printf("sectors/track: %lu\n", (long) lp->d_nsectors);
|
---|
| 521 | printf("tracks/cylinder: %lu\n", (long) lp->d_ntracks);
|
---|
| 522 | printf("sectors/cylinder: %lu\n", (long) lp->d_secpercyl);
|
---|
| 523 | printf("cylinders: %lu\n", (long) lp->d_ncylinders);
|
---|
| 524 | printf("rpm: %u\n", lp->d_rpm);
|
---|
| 525 | printf("interleave: %u\n", lp->d_interleave);
|
---|
| 526 | printf("trackskew: %u\n", lp->d_trackskew);
|
---|
| 527 | printf("cylinderskew: %u\n", lp->d_cylskew);
|
---|
| 528 | printf("headswitch: %lu\t\t# milliseconds\n",
|
---|
[1765] | 529 | (long) lp->d_headswitch);
|
---|
[2725] | 530 | printf("track-to-track seek: %lu\t# milliseconds\n",
|
---|
[1765] | 531 | (long) lp->d_trkseek);
|
---|
| 532 | printf("drivedata: ");
|
---|
| 533 | for (i = NDDATA - 1; i >= 0; i--)
|
---|
| 534 | if (lp->d_drivedata[i])
|
---|
| 535 | break;
|
---|
| 536 | if (i < 0)
|
---|
| 537 | i = 0;
|
---|
| 538 | for (j = 0; j <= i; j++)
|
---|
[2725] | 539 | printf("%lu ", (long) lp->d_drivedata[j]);
|
---|
[1765] | 540 | }
|
---|
[2725] | 541 | printf("\n%u partitions:\n", lp->d_npartitions);
|
---|
[1765] | 542 | printf("# start end size fstype [fsize bsize cpg]\n");
|
---|
| 543 | pp = lp->d_partitions;
|
---|
| 544 | for (i = 0; i < lp->d_npartitions; i++, pp++) {
|
---|
| 545 | if (pp->p_size) {
|
---|
| 546 | if (display_in_cyl_units && lp->d_secpercyl) {
|
---|
[2725] | 547 | printf(" %c: %8lu%c %8lu%c %8lu%c ",
|
---|
[1765] | 548 | 'a' + i,
|
---|
[2725] | 549 | (unsigned long) pp->p_offset / lp->d_secpercyl + 1,
|
---|
[1765] | 550 | (pp->p_offset % lp->d_secpercyl) ? '*' : ' ',
|
---|
[2725] | 551 | (unsigned long) (pp->p_offset + pp->p_size + lp->d_secpercyl - 1) / lp->d_secpercyl,
|
---|
[1765] | 552 | ((pp->p_offset + pp->p_size) % lp->d_secpercyl) ? '*' : ' ',
|
---|
| 553 | (long) pp->p_size / lp->d_secpercyl,
|
---|
| 554 | (pp->p_size % lp->d_secpercyl) ? '*' : ' '
|
---|
| 555 | );
|
---|
| 556 | } else {
|
---|
[2725] | 557 | printf(" %c: %8lu %8lu %8lu ",
|
---|
[1765] | 558 | 'a' + i,
|
---|
| 559 | (long) pp->p_offset,
|
---|
| 560 | (long) pp->p_offset + pp->p_size - 1,
|
---|
| 561 | (long) pp->p_size
|
---|
| 562 | );
|
---|
| 563 | }
|
---|
| 564 |
|
---|
| 565 | if ((unsigned) pp->p_fstype < ARRAY_SIZE(xbsd_fstypes)-1)
|
---|
| 566 | printf("%8.8s", xbsd_fstypes[pp->p_fstype]);
|
---|
| 567 | else
|
---|
| 568 | printf("%8x", pp->p_fstype);
|
---|
| 569 |
|
---|
| 570 | switch (pp->p_fstype) {
|
---|
| 571 | case BSD_FS_UNUSED:
|
---|
[2725] | 572 | printf(" %5lu %5lu %5.5s ",
|
---|
[1765] | 573 | (long) pp->p_fsize, (long) pp->p_fsize * pp->p_frag, "");
|
---|
| 574 | break;
|
---|
| 575 | case BSD_FS_BSDFFS:
|
---|
[2725] | 576 | printf(" %5lu %5lu %5u ",
|
---|
[1765] | 577 | (long) pp->p_fsize, (long) pp->p_fsize * pp->p_frag, pp->p_cpg);
|
---|
| 578 | break;
|
---|
| 579 | default:
|
---|
| 580 | printf("%22.22s", "");
|
---|
| 581 | break;
|
---|
| 582 | }
|
---|
[2725] | 583 | bb_putchar('\n');
|
---|
[1765] | 584 | }
|
---|
| 585 | }
|
---|
| 586 | }
|
---|
| 587 |
|
---|
| 588 | static void
|
---|
| 589 | xbsd_write_disklabel(void)
|
---|
| 590 | {
|
---|
| 591 | #if defined(__alpha__)
|
---|
| 592 | printf("Writing disklabel to %s\n", disk_device);
|
---|
| 593 | xbsd_writelabel(NULL);
|
---|
| 594 | #else
|
---|
| 595 | printf("Writing disklabel to %s\n",
|
---|
| 596 | partname(disk_device, xbsd_part_index + 1, 0));
|
---|
| 597 | xbsd_writelabel(xbsd_part);
|
---|
| 598 | #endif
|
---|
| 599 | reread_partition_table(0); /* no exit yet */
|
---|
| 600 | }
|
---|
| 601 |
|
---|
| 602 | static int
|
---|
| 603 | xbsd_create_disklabel(void)
|
---|
| 604 | {
|
---|
| 605 | char c;
|
---|
| 606 |
|
---|
| 607 | #if defined(__alpha__)
|
---|
| 608 | printf("%s contains no disklabel\n", disk_device);
|
---|
| 609 | #else
|
---|
| 610 | printf("%s contains no disklabel\n",
|
---|
| 611 | partname(disk_device, xbsd_part_index + 1, 0));
|
---|
| 612 | #endif
|
---|
| 613 |
|
---|
| 614 | while (1) {
|
---|
| 615 | c = read_nonempty("Do you want to create a disklabel? (y/n) ");
|
---|
[2725] | 616 | if ((c|0x20) == 'y') {
|
---|
[1765] | 617 | if (xbsd_initlabel(
|
---|
| 618 | #if defined(__alpha__) || defined(__powerpc__) || defined(__hppa__) || \
|
---|
| 619 | defined(__s390__) || defined(__s390x__)
|
---|
| 620 | NULL
|
---|
| 621 | #else
|
---|
| 622 | xbsd_part
|
---|
| 623 | #endif
|
---|
[2725] | 624 | ) == 1) {
|
---|
[1765] | 625 | xbsd_print_disklabel(1);
|
---|
| 626 | return 1;
|
---|
[2725] | 627 | }
|
---|
[1765] | 628 | return 0;
|
---|
[2725] | 629 | }
|
---|
| 630 | if ((c|0x20) == 'n')
|
---|
| 631 | return 0;
|
---|
[1765] | 632 | }
|
---|
| 633 | }
|
---|
| 634 |
|
---|
| 635 | static int
|
---|
| 636 | edit_int(int def, const char *mesg)
|
---|
| 637 | {
|
---|
[2725] | 638 | mesg = xasprintf("%s (%u): ", mesg, def);
|
---|
[1765] | 639 | do {
|
---|
| 640 | if (!read_line(mesg))
|
---|
| 641 | goto ret;
|
---|
| 642 | } while (!isdigit(*line_ptr));
|
---|
| 643 | def = atoi(line_ptr);
|
---|
| 644 | ret:
|
---|
| 645 | free((char*)mesg);
|
---|
| 646 | return def;
|
---|
| 647 | }
|
---|
| 648 |
|
---|
| 649 | static void
|
---|
| 650 | xbsd_edit_disklabel(void)
|
---|
| 651 | {
|
---|
| 652 | struct xbsd_disklabel *d;
|
---|
| 653 |
|
---|
| 654 | d = &xbsd_dlabel;
|
---|
| 655 |
|
---|
| 656 | #if defined(__alpha__) || defined(__ia64__)
|
---|
| 657 | d->d_secsize = edit_int(d->d_secsize , "bytes/sector");
|
---|
| 658 | d->d_nsectors = edit_int(d->d_nsectors , "sectors/track");
|
---|
| 659 | d->d_ntracks = edit_int(d->d_ntracks , "tracks/cylinder");
|
---|
| 660 | d->d_ncylinders = edit_int(d->d_ncylinders , "cylinders");
|
---|
| 661 | #endif
|
---|
| 662 |
|
---|
| 663 | /* d->d_secpercyl can be != d->d_nsectors * d->d_ntracks */
|
---|
| 664 | while (1) {
|
---|
| 665 | d->d_secpercyl = edit_int(d->d_nsectors * d->d_ntracks,
|
---|
| 666 | "sectors/cylinder");
|
---|
| 667 | if (d->d_secpercyl <= d->d_nsectors * d->d_ntracks)
|
---|
| 668 | break;
|
---|
| 669 |
|
---|
| 670 | printf("Must be <= sectors/track * tracks/cylinder (default)\n");
|
---|
| 671 | }
|
---|
| 672 | d->d_rpm = edit_int(d->d_rpm , "rpm");
|
---|
| 673 | d->d_interleave = edit_int(d->d_interleave, "interleave");
|
---|
| 674 | d->d_trackskew = edit_int(d->d_trackskew , "trackskew");
|
---|
| 675 | d->d_cylskew = edit_int(d->d_cylskew , "cylinderskew");
|
---|
| 676 | d->d_headswitch = edit_int(d->d_headswitch, "headswitch");
|
---|
| 677 | d->d_trkseek = edit_int(d->d_trkseek , "track-to-track seek");
|
---|
| 678 |
|
---|
| 679 | d->d_secperunit = d->d_secpercyl * d->d_ncylinders;
|
---|
| 680 | }
|
---|
| 681 |
|
---|
| 682 | static int
|
---|
| 683 | xbsd_get_bootstrap(char *path, void *ptr, int size)
|
---|
| 684 | {
|
---|
| 685 | int fdb;
|
---|
| 686 |
|
---|
[2725] | 687 | fdb = open_or_warn(path, O_RDONLY);
|
---|
[1765] | 688 | if (fdb < 0) {
|
---|
| 689 | return 0;
|
---|
| 690 | }
|
---|
[2725] | 691 | if (full_read(fdb, ptr, size) < 0) {
|
---|
| 692 | bb_simple_perror_msg(path);
|
---|
[1765] | 693 | close(fdb);
|
---|
| 694 | return 0;
|
---|
| 695 | }
|
---|
| 696 | printf(" ... %s\n", path);
|
---|
| 697 | close(fdb);
|
---|
| 698 | return 1;
|
---|
| 699 | }
|
---|
| 700 |
|
---|
| 701 | static void
|
---|
| 702 | sync_disks(void)
|
---|
| 703 | {
|
---|
| 704 | printf("Syncing disks\n");
|
---|
| 705 | sync();
|
---|
| 706 | /* sleep(4); What? */
|
---|
| 707 | }
|
---|
| 708 |
|
---|
| 709 | static void
|
---|
| 710 | xbsd_write_bootstrap(void)
|
---|
| 711 | {
|
---|
| 712 | char path[MAXPATHLEN];
|
---|
| 713 | const char *bootdir = BSD_LINUX_BOOTDIR;
|
---|
| 714 | const char *dkbasename;
|
---|
| 715 | struct xbsd_disklabel dl;
|
---|
| 716 | char *d, *p, *e;
|
---|
| 717 | int sector;
|
---|
| 718 |
|
---|
| 719 | if (xbsd_dlabel.d_type == BSD_DTYPE_SCSI)
|
---|
| 720 | dkbasename = "sd";
|
---|
| 721 | else
|
---|
| 722 | dkbasename = "wd";
|
---|
| 723 |
|
---|
| 724 | snprintf(path, sizeof(path), "Bootstrap: %sboot -> boot%s (%s): ",
|
---|
| 725 | dkbasename, dkbasename, dkbasename);
|
---|
| 726 | if (read_line(path)) {
|
---|
| 727 | dkbasename = line_ptr;
|
---|
| 728 | }
|
---|
| 729 | snprintf(path, sizeof(path), "%s/%sboot", bootdir, dkbasename);
|
---|
| 730 | if (!xbsd_get_bootstrap(path, disklabelbuffer, (int) xbsd_dlabel.d_secsize))
|
---|
| 731 | return;
|
---|
| 732 |
|
---|
| 733 | /* We need a backup of the disklabel (xbsd_dlabel might have changed). */
|
---|
| 734 | d = &disklabelbuffer[BSD_LABELSECTOR * SECTOR_SIZE];
|
---|
| 735 | memmove(&dl, d, sizeof(struct xbsd_disklabel));
|
---|
| 736 |
|
---|
| 737 | /* The disklabel will be overwritten by 0's from bootxx anyway */
|
---|
| 738 | memset(d, 0, sizeof(struct xbsd_disklabel));
|
---|
| 739 |
|
---|
| 740 | snprintf(path, sizeof(path), "%s/boot%s", bootdir, dkbasename);
|
---|
| 741 | if (!xbsd_get_bootstrap(path, &disklabelbuffer[xbsd_dlabel.d_secsize],
|
---|
| 742 | (int) xbsd_dlabel.d_bbsize - xbsd_dlabel.d_secsize))
|
---|
| 743 | return;
|
---|
| 744 |
|
---|
| 745 | e = d + sizeof(struct xbsd_disklabel);
|
---|
| 746 | for (p = d; p < e; p++)
|
---|
| 747 | if (*p) {
|
---|
| 748 | printf("Bootstrap overlaps with disk label!\n");
|
---|
| 749 | exit(EXIT_FAILURE);
|
---|
| 750 | }
|
---|
| 751 |
|
---|
| 752 | memmove(d, &dl, sizeof(struct xbsd_disklabel));
|
---|
| 753 |
|
---|
| 754 | #if defined(__powerpc__) || defined(__hppa__)
|
---|
| 755 | sector = 0;
|
---|
| 756 | #elif defined(__alpha__)
|
---|
| 757 | sector = 0;
|
---|
| 758 | alpha_bootblock_checksum(disklabelbuffer);
|
---|
| 759 | #else
|
---|
| 760 | sector = get_start_sect(xbsd_part);
|
---|
| 761 | #endif
|
---|
| 762 |
|
---|
[2725] | 763 | seek_sector(sector);
|
---|
| 764 | xwrite(dev_fd, disklabelbuffer, BSD_BBSIZE);
|
---|
[1765] | 765 |
|
---|
| 766 | #if defined(__alpha__)
|
---|
| 767 | printf("Bootstrap installed on %s\n", disk_device);
|
---|
| 768 | #else
|
---|
| 769 | printf("Bootstrap installed on %s\n",
|
---|
| 770 | partname(disk_device, xbsd_part_index+1, 0));
|
---|
| 771 | #endif
|
---|
| 772 |
|
---|
| 773 | sync_disks();
|
---|
| 774 | }
|
---|
| 775 |
|
---|
| 776 | static void
|
---|
| 777 | xbsd_change_fstype(void)
|
---|
| 778 | {
|
---|
| 779 | int i;
|
---|
| 780 |
|
---|
| 781 | i = xbsd_get_part_index(xbsd_dlabel.d_npartitions);
|
---|
| 782 | xbsd_dlabel.d_partitions[i].p_fstype = read_hex(xbsd_fstypes);
|
---|
| 783 | }
|
---|
| 784 |
|
---|
| 785 | static int
|
---|
| 786 | xbsd_get_part_index(int max)
|
---|
| 787 | {
|
---|
| 788 | char prompt[sizeof("Partition (a-%c): ") + 16];
|
---|
| 789 | char l;
|
---|
| 790 |
|
---|
| 791 | snprintf(prompt, sizeof(prompt), "Partition (a-%c): ", 'a' + max - 1);
|
---|
| 792 | do
|
---|
| 793 | l = tolower(read_nonempty(prompt));
|
---|
| 794 | while (l < 'a' || l > 'a' + max - 1);
|
---|
| 795 | return l - 'a';
|
---|
| 796 | }
|
---|
| 797 |
|
---|
| 798 | static int
|
---|
| 799 | xbsd_check_new_partition(int *i)
|
---|
| 800 | {
|
---|
| 801 | /* room for more? various BSD flavours have different maxima */
|
---|
| 802 | if (xbsd_dlabel.d_npartitions == BSD_MAXPARTITIONS) {
|
---|
| 803 | int t;
|
---|
| 804 |
|
---|
| 805 | for (t = 0; t < BSD_MAXPARTITIONS; t++)
|
---|
| 806 | if (xbsd_dlabel.d_partitions[t].p_size == 0)
|
---|
| 807 | break;
|
---|
| 808 |
|
---|
| 809 | if (t == BSD_MAXPARTITIONS) {
|
---|
| 810 | printf("The maximum number of partitions has been created\n");
|
---|
| 811 | return 0;
|
---|
| 812 | }
|
---|
| 813 | }
|
---|
| 814 |
|
---|
| 815 | *i = xbsd_get_part_index(BSD_MAXPARTITIONS);
|
---|
| 816 |
|
---|
| 817 | if (*i >= xbsd_dlabel.d_npartitions)
|
---|
| 818 | xbsd_dlabel.d_npartitions = (*i) + 1;
|
---|
| 819 |
|
---|
| 820 | if (xbsd_dlabel.d_partitions[*i].p_size != 0) {
|
---|
| 821 | printf("This partition already exists\n");
|
---|
| 822 | return 0;
|
---|
| 823 | }
|
---|
| 824 |
|
---|
| 825 | return 1;
|
---|
| 826 | }
|
---|
| 827 |
|
---|
| 828 | static void
|
---|
| 829 | xbsd_list_types(void)
|
---|
| 830 | {
|
---|
| 831 | list_types(xbsd_fstypes);
|
---|
| 832 | }
|
---|
| 833 |
|
---|
| 834 | static uint16_t
|
---|
| 835 | xbsd_dkcksum(struct xbsd_disklabel *lp)
|
---|
| 836 | {
|
---|
| 837 | uint16_t *start, *end;
|
---|
| 838 | uint16_t sum = 0;
|
---|
| 839 |
|
---|
| 840 | start = (uint16_t *) lp;
|
---|
| 841 | end = (uint16_t *) &lp->d_partitions[lp->d_npartitions];
|
---|
| 842 | while (start < end)
|
---|
| 843 | sum ^= *start++;
|
---|
| 844 | return sum;
|
---|
| 845 | }
|
---|
| 846 |
|
---|
| 847 | static int
|
---|
| 848 | xbsd_initlabel(struct partition *p)
|
---|
| 849 | {
|
---|
| 850 | struct xbsd_disklabel *d = &xbsd_dlabel;
|
---|
| 851 | struct xbsd_partition *pp;
|
---|
| 852 |
|
---|
| 853 | get_geometry();
|
---|
| 854 | memset(d, 0, sizeof(struct xbsd_disklabel));
|
---|
| 855 |
|
---|
| 856 | d->d_magic = BSD_DISKMAGIC;
|
---|
| 857 |
|
---|
[3621] | 858 | if (is_prefixed_with(disk_device, "/dev/sd"))
|
---|
[1765] | 859 | d->d_type = BSD_DTYPE_SCSI;
|
---|
| 860 | else
|
---|
| 861 | d->d_type = BSD_DTYPE_ST506;
|
---|
| 862 |
|
---|
| 863 | #if !defined(__alpha__)
|
---|
| 864 | d->d_flags = BSD_D_DOSPART;
|
---|
| 865 | #else
|
---|
| 866 | d->d_flags = 0;
|
---|
| 867 | #endif
|
---|
| 868 | d->d_secsize = SECTOR_SIZE; /* bytes/sector */
|
---|
[2725] | 869 | d->d_nsectors = g_sectors; /* sectors/track */
|
---|
| 870 | d->d_ntracks = g_heads; /* tracks/cylinder (heads) */
|
---|
| 871 | d->d_ncylinders = g_cylinders;
|
---|
| 872 | d->d_secpercyl = g_sectors * g_heads;/* sectors/cylinder */
|
---|
[1765] | 873 | if (d->d_secpercyl == 0)
|
---|
| 874 | d->d_secpercyl = 1; /* avoid segfaults */
|
---|
| 875 | d->d_secperunit = d->d_secpercyl * d->d_ncylinders;
|
---|
| 876 |
|
---|
| 877 | d->d_rpm = 3600;
|
---|
| 878 | d->d_interleave = 1;
|
---|
| 879 | d->d_trackskew = 0;
|
---|
| 880 | d->d_cylskew = 0;
|
---|
| 881 | d->d_headswitch = 0;
|
---|
| 882 | d->d_trkseek = 0;
|
---|
| 883 |
|
---|
| 884 | d->d_magic2 = BSD_DISKMAGIC;
|
---|
| 885 | d->d_bbsize = BSD_BBSIZE;
|
---|
| 886 | d->d_sbsize = BSD_SBSIZE;
|
---|
| 887 |
|
---|
| 888 | #if !defined(__alpha__)
|
---|
| 889 | d->d_npartitions = 4;
|
---|
| 890 | pp = &d->d_partitions[2]; /* Partition C should be NetBSD partition */
|
---|
| 891 |
|
---|
| 892 | pp->p_offset = get_start_sect(p);
|
---|
| 893 | pp->p_size = get_nr_sects(p);
|
---|
| 894 | pp->p_fstype = BSD_FS_UNUSED;
|
---|
| 895 | pp = &d->d_partitions[3]; /* Partition D should be whole disk */
|
---|
| 896 |
|
---|
| 897 | pp->p_offset = 0;
|
---|
| 898 | pp->p_size = d->d_secperunit;
|
---|
| 899 | pp->p_fstype = BSD_FS_UNUSED;
|
---|
| 900 | #else
|
---|
| 901 | d->d_npartitions = 3;
|
---|
[3232] | 902 | pp = &d->d_partitions[2]; /* Partition C should be the whole disk */
|
---|
[1765] | 903 | pp->p_offset = 0;
|
---|
| 904 | pp->p_size = d->d_secperunit;
|
---|
| 905 | pp->p_fstype = BSD_FS_UNUSED;
|
---|
| 906 | #endif
|
---|
| 907 |
|
---|
| 908 | return 1;
|
---|
| 909 | }
|
---|
| 910 |
|
---|
| 911 | /*
|
---|
| 912 | * Read a xbsd_disklabel from sector 0 or from the starting sector of p.
|
---|
| 913 | * If it has the right magic, return 1.
|
---|
| 914 | */
|
---|
| 915 | static int
|
---|
| 916 | xbsd_readlabel(struct partition *p)
|
---|
| 917 | {
|
---|
| 918 | struct xbsd_disklabel *d;
|
---|
| 919 | int t, sector;
|
---|
| 920 |
|
---|
| 921 | if (!bsd_globals_ptr)
|
---|
| 922 | bsd_globals_ptr = xzalloc(sizeof(*bsd_globals_ptr));
|
---|
| 923 |
|
---|
| 924 | d = &xbsd_dlabel;
|
---|
| 925 |
|
---|
| 926 | /* p is used only to get the starting sector */
|
---|
| 927 | #if !defined(__alpha__)
|
---|
| 928 | sector = (p ? get_start_sect(p) : 0);
|
---|
| 929 | #else
|
---|
| 930 | sector = 0;
|
---|
| 931 | #endif
|
---|
| 932 |
|
---|
[2725] | 933 | seek_sector(sector);
|
---|
| 934 | if (BSD_BBSIZE != full_read(dev_fd, disklabelbuffer, BSD_BBSIZE))
|
---|
[1765] | 935 | fdisk_fatal(unable_to_read);
|
---|
| 936 |
|
---|
| 937 | memmove(d, &disklabelbuffer[BSD_LABELSECTOR * SECTOR_SIZE + BSD_LABELOFFSET],
|
---|
[3232] | 938 | sizeof(struct xbsd_disklabel));
|
---|
[1765] | 939 |
|
---|
| 940 | if (d->d_magic != BSD_DISKMAGIC || d->d_magic2 != BSD_DISKMAGIC)
|
---|
| 941 | return 0;
|
---|
| 942 |
|
---|
| 943 | for (t = d->d_npartitions; t < BSD_MAXPARTITIONS; t++) {
|
---|
| 944 | d->d_partitions[t].p_size = 0;
|
---|
| 945 | d->d_partitions[t].p_offset = 0;
|
---|
| 946 | d->d_partitions[t].p_fstype = BSD_FS_UNUSED;
|
---|
| 947 | }
|
---|
| 948 |
|
---|
| 949 | if (d->d_npartitions > BSD_MAXPARTITIONS)
|
---|
[2725] | 950 | printf("Warning: too many partitions (%u, maximum is %u)\n",
|
---|
[1765] | 951 | d->d_npartitions, BSD_MAXPARTITIONS);
|
---|
| 952 | return 1;
|
---|
| 953 | }
|
---|
| 954 |
|
---|
| 955 | static int
|
---|
| 956 | xbsd_writelabel(struct partition *p)
|
---|
| 957 | {
|
---|
| 958 | struct xbsd_disklabel *d = &xbsd_dlabel;
|
---|
| 959 | unsigned int sector;
|
---|
| 960 |
|
---|
| 961 | #if !defined(__alpha__) && !defined(__powerpc__) && !defined(__hppa__)
|
---|
| 962 | sector = get_start_sect(p) + BSD_LABELSECTOR;
|
---|
| 963 | #else
|
---|
[2725] | 964 | (void)p; /* silence warning */
|
---|
[1765] | 965 | sector = BSD_LABELSECTOR;
|
---|
| 966 | #endif
|
---|
| 967 |
|
---|
| 968 | d->d_checksum = 0;
|
---|
| 969 | d->d_checksum = xbsd_dkcksum(d);
|
---|
| 970 |
|
---|
| 971 | /* This is necessary if we want to write the bootstrap later,
|
---|
| 972 | otherwise we'd write the old disklabel with the bootstrap.
|
---|
| 973 | */
|
---|
| 974 | memmove(&disklabelbuffer[BSD_LABELSECTOR * SECTOR_SIZE + BSD_LABELOFFSET],
|
---|
| 975 | d, sizeof(struct xbsd_disklabel));
|
---|
| 976 |
|
---|
| 977 | #if defined(__alpha__) && BSD_LABELSECTOR == 0
|
---|
| 978 | alpha_bootblock_checksum(disklabelbuffer);
|
---|
[2725] | 979 | seek_sector(0);
|
---|
| 980 | xwrite(dev_fd, disklabelbuffer, BSD_BBSIZE);
|
---|
[1765] | 981 | #else
|
---|
[2725] | 982 | seek_sector(sector);
|
---|
| 983 | lseek(dev_fd, BSD_LABELOFFSET, SEEK_CUR);
|
---|
| 984 | xwrite(dev_fd, d, sizeof(*d));
|
---|
[1765] | 985 | #endif
|
---|
| 986 | sync_disks();
|
---|
| 987 | return 1;
|
---|
| 988 | }
|
---|
| 989 |
|
---|
| 990 |
|
---|
| 991 | #if !defined(__alpha__)
|
---|
| 992 | static int
|
---|
| 993 | xbsd_translate_fstype(int linux_type)
|
---|
| 994 | {
|
---|
| 995 | switch (linux_type) {
|
---|
| 996 | case 0x01: /* DOS 12-bit FAT */
|
---|
| 997 | case 0x04: /* DOS 16-bit <32M */
|
---|
| 998 | case 0x06: /* DOS 16-bit >=32M */
|
---|
| 999 | case 0xe1: /* DOS access */
|
---|
| 1000 | case 0xe3: /* DOS R/O */
|
---|
| 1001 | case 0xf2: /* DOS secondary */
|
---|
| 1002 | return BSD_FS_MSDOS;
|
---|
| 1003 | case 0x07: /* OS/2 HPFS */
|
---|
| 1004 | return BSD_FS_HPFS;
|
---|
| 1005 | default:
|
---|
| 1006 | return BSD_FS_OTHER;
|
---|
| 1007 | }
|
---|
| 1008 | }
|
---|
| 1009 |
|
---|
| 1010 | static void
|
---|
| 1011 | xbsd_link_part(void)
|
---|
| 1012 | {
|
---|
| 1013 | int k, i;
|
---|
| 1014 | struct partition *p;
|
---|
| 1015 |
|
---|
[2725] | 1016 | k = get_partition(1, g_partitions);
|
---|
[1765] | 1017 |
|
---|
| 1018 | if (!xbsd_check_new_partition(&i))
|
---|
| 1019 | return;
|
---|
| 1020 |
|
---|
| 1021 | p = get_part_table(k);
|
---|
| 1022 |
|
---|
| 1023 | xbsd_dlabel.d_partitions[i].p_size = get_nr_sects(p);
|
---|
| 1024 | xbsd_dlabel.d_partitions[i].p_offset = get_start_sect(p);
|
---|
| 1025 | xbsd_dlabel.d_partitions[i].p_fstype = xbsd_translate_fstype(p->sys_ind);
|
---|
| 1026 | }
|
---|
| 1027 | #endif
|
---|
| 1028 |
|
---|
| 1029 | #if defined(__alpha__)
|
---|
| 1030 | static void
|
---|
| 1031 | alpha_bootblock_checksum(char *boot)
|
---|
| 1032 | {
|
---|
| 1033 | uint64_t *dp, sum;
|
---|
| 1034 | int i;
|
---|
| 1035 |
|
---|
| 1036 | dp = (uint64_t *)boot;
|
---|
| 1037 | sum = 0;
|
---|
| 1038 | for (i = 0; i < 63; i++)
|
---|
| 1039 | sum += dp[i];
|
---|
| 1040 | dp[63] = sum;
|
---|
| 1041 | }
|
---|
| 1042 | #endif /* __alpha__ */
|
---|
| 1043 |
|
---|
| 1044 | /* Undefine 'global' tricks */
|
---|
| 1045 | #undef disklabelbuffer
|
---|
| 1046 | #undef xbsd_dlabel
|
---|
| 1047 |
|
---|
| 1048 | #endif /* OSF_LABEL */
|
---|