diff options
Diffstat (limited to 'perl-install/partition_table.pm')
| -rw-r--r-- | perl-install/partition_table.pm | 707 |
1 files changed, 0 insertions, 707 deletions
diff --git a/perl-install/partition_table.pm b/perl-install/partition_table.pm deleted file mode 100644 index 05cb5e5f1..000000000 --- a/perl-install/partition_table.pm +++ /dev/null @@ -1,707 +0,0 @@ -package partition_table; # $Id$ - -#use diagnostics; -#use strict; -#use vars qw(@ISA %EXPORT_TAGS @EXPORT_OK @important_types @important_types2 @fields2save); - -@ISA = qw(Exporter); -%EXPORT_TAGS = ( - types => [ qw(type2name type2fs name2type fs2type isExtended isExt2 isReiserfs isXfs isTrueFS isSwap isDos isWin isFat isSunOS isOtherAvailableFS isPrimary isNfs isSupermount isLVM isRAID isMDRAID isLVMBased isHFS isNT isMountableRW isNonMountable isApplePartMap isLoopback isApple isAppleBootstrap) ], -); -@EXPORT_OK = map { @$_ } values %EXPORT_TAGS; - - -use common qw(:common :system :functional); -use partition_table_raw; -use log; - -if (arch() =~ /ppc/) { - @important_types = ('Linux native', 'Linux swap', 'Apple HFS Partition', 'Apple Bootstrap'); -} else { - @important_types = ('Linux native', 'Linux swap', if_(arch() =~ /i.86/, 'ReiserFS', 'DOS FAT16', 'Win98 FAT32')); -} -@important_types2 = ('Linux RAID', 'Linux Logical Volume Manager partition'); - -@fields2save = qw(primary extended totalsectors isDirty needKernelReread); - -@bad_types = ('Empty', 'DOS 3.3+ Extended Partition', 'Win95: Extended partition, LBA-mapped', 'Linux extended partition'); - -my %types = ( - 0x0 => 'Empty', -arch() =~ /^ppc/ ? ( - 0x401 => 'Apple Partition', - 0x401 => 'Apple Bootstrap', - 0x402 => 'Apple HFS Partition', -) : arch() =~ /^i.86/ ? ( - 0x183 => 'ReiserFS', - 0x283 => 'XFS', -) : arch() =~ /^sparc/ ? ( - 0x1 => 'SunOS boot', - 0x2 => 'SunOS root', - 0x3 => 'SunOS swap', - 0x4 => 'SunOS usr', - 0x5 => 'Whole disk', - 0x6 => 'SunOS stand', - 0x7 => 'SunOS var', - 0x8 => 'SunOS home', -) : ( - 0x1 => 'DOS 12-bit FAT', - 0x2 => 'XENIX root', - 0x3 => 'XENIX /usr', - 0x4 => 'DOS 16-bit FAT (up to 32M)', - 0x5 => 'DOS 3.3+ Extended Partition', - 0x6 => 'DOS FAT16', - 0x7 => 'NTFS (or HPFS)', - 0x8 => 'OS/2 (v1.0-1.3 only) / AIX boot partition / SplitDrive / Commodore DOS / DELL partition spanning multiple drives / QNX 1.x and 2.x ("qny")', -), - 0x9 => 'AIX data partition / Coherent filesystem / QNX 1.x and 2.x ("qnz")', - 0xa => 'OS/2 Boot Manager / Coherent swap partition / OPUS', - 0xb => 'Win98 FAT32', - 0xc => 'Win98 FAT32, LBA-mapped', - 0xe => 'Win95: DOS 16-bit FAT, LBA-mapped', - 0xf => 'Win95: Extended partition, LBA-mapped', - 0x10 => 'OPUS (?)', - 0x11 => 'Hidden DOS 12-bit FAT', - 0x12 => 'Compaq/HP config partition', - 0x14 => 'Hidden DOS 16-bit FAT <32M', - 0x16 => 'Hidden DOS 16-bit FAT >=32M', - 0x17 => 'Hidden IFS (e.g., HPFS)', - 0x18 => 'AST Windows swapfile', - 0x1b => 'Hidden WIN95 OSR2 32-bit FAT', - 0x1c => 'Hidden WIN95 OSR2 32-bit FAT, LBA-mapped', - 0x1e => 'Hidden FAT95', - 0x22 => 'Used for Oxygen Extended Partition Table by ekstazya@sprint.ca.', - 0x24 => 'NEC DOS 3.x', - 0x38 => 'THEOS ver 3.2 2gb partition', - 0x39 => 'THEOS ver 4 spanned partition', - 0x3a => 'THEOS ver 4 4gb partition', - 0x3b => 'THEOS ver 4 extended partition', - 0x3c => 'PartitionMagic recovery partition', - 0x40 => 'Venix 80286', - 0x41 => 'Linux/MINIX (sharing disk with DRDOS) / Personal RISC Boot / PPC PReP (Power PC Reference Platform) Boot', - 0x42 => 'Linux swap (sharing disk with DRDOS) / SFS (Secure Filesystem) / W2K marker', - 0x43 => 'Linux native (sharing disk with DRDOS)', - 0x45 => 'EUMEL/Elan', - 0x46 => 'EUMEL/Elan 0x46', - 0x47 => 'EUMEL/Elan 0x47', - 0x48 => 'EUMEL/Elan 0x48', - 0x4d => 'QNX4.x', - 0x4e => 'QNX4.x 2nd part', - 0x4f => 'QNX4.x 3rd part / Oberon partition', - 0x50 => 'OnTrack Disk Manager (older versions) RO', - 0x51 => 'OnTrack Disk Manager RW (DM6 Aux1) / Novell', - 0x52 => 'CP/M / Microport SysV/AT', - 0x53 => 'Disk Manager 6.0 Aux3', - 0x54 => 'Disk Manager 6.0 Dynamic Drive Overlay', - 0x55 => 'EZ-Drive', - 0x56 => 'Golden Bow VFeature Partitioned Volume. / DM converted to EZ-BIOS', - 0x57 => 'DrivePro', - 0x5c => 'Priam EDisk', - 0x61 => 'SpeedStor', - 0x63 => 'Unix System V (SCO, ISC Unix, UnixWare, ...), Mach, GNU Hurd', - 0x64 => 'PC-ARMOUR protected partition / Novell Netware 2.xx', - 0x65 => 'Novell Netware 3.xx or 4.xx', - 0x67 => 'Novell', - 0x68 => 'Novell 0x68', - 0x69 => 'Novell 0x69', - 0x70 => 'DiskSecure Multi-Boot', - 0x75 => 'IBM PC/IX', - 0x80 => 'MINIX until 1.4a', - 0x81 => 'MINIX since 1.4b, early Linux / Mitac disk manager', - 0x82 => 'Linux swap', - 0x83 => 'Linux native', - 0x84 => 'OS/2 hidden C: drive / Hibernation partition', - 0x85 => 'Linux extended partition', - 0x86 => 'Old Linux RAID partition superblock / NTFS volume set', - 0x87 => 'NTFS volume set', - 0x8a => 'Linux Kernel Partition (used by AiR-BOOT)', - 0x8e => 'Linux Logical Volume Manager partition', - 0x93 => 'Amoeba', - 0x94 => 'Amoeba bad block table', - 0x99 => 'DCE376 logical drive', - 0xa0 => 'IBM Thinkpad hibernation partition / Phoenix NoteBIOS Power Management "Save-to-Disk" partition', - 0xa5 => 'BSD/386, 386BSD, NetBSD, FreeBSD', - 0xa6 => 'OpenBSD', - 0xa7 => 'NEXTSTEP', - 0xa9 => 'NetBSD', - 0xaa => 'Olivetti Fat 12 1.44Mb Service Partition', - 0xb7 => 'BSDI filesystem', - 0xb8 => 'BSDI swap partition', - 0xbe => 'Solaris boot partition', - 0xc0 => 'CTOS / REAL/32 secure small partition', - 0xc1 => 'DRDOS/secured (FAT-12)', - 0xc4 => 'DRDOS/secured (FAT-16, < 32M)', - 0xc6 => 'DRDOS/secured (FAT-16, >= 32M) / Windows NT corrupted FAT16 volume/stripe set', - 0xc7 => 'Windows NT corrupted NTFS volume/stripe set / Syrinx boot', - 0xcb => 'reserved for DRDOS/secured (FAT32)', - 0xcc => 'reserved for DRDOS/secured (FAT32, LBA)', - 0xcd => 'CTOS Memdump?', - 0xce => 'reserved for DRDOS/secured (FAT16, LBA)', - 0xd0 => 'REAL/32 secure big partition', - 0xd1 => 'Old Multiuser DOS secured FAT12', - 0xd4 => 'Old Multiuser DOS secured FAT16 <32M', - 0xd5 => 'Old Multiuser DOS secured extended partition', - 0xd6 => 'Old Multiuser DOS secured FAT16 >=32M', - 0xd8 => 'CP/M-86', - 0xdb => 'Digital Research CP/M, Concurrent CP/M, Concurrent DOS / CTOS (Convergent Technologies OS -Unisys) / KDG Telemetry SCPU boot', - 0xdd => 'Hidden CTOS Memdump?', - 0xe1 => 'DOS access or SpeedStor 12-bit FAT extended partition', - 0xe3 => 'DOS R/O or SpeedStor', - 0xe4 => 'SpeedStor 16-bit FAT extended partition < 1024 cyl.', - 0xeb => 'BeOS', - 0xee => 'Indication that this legacy MBR is followed by an EFI header', - 0xef => 'Partition that contains an EFI file system', - 0xf1 => 'SpeedStor 0xf1', - 0xf2 => 'DOS 3.3+ secondary partition', - 0xf4 => 'SpeedStor large partition / Prologue single-volume partition', - 0xf5 => 'Prologue multi-volume partition', - 0xfd => 'Linux RAID', - 0xfe => 'SpeedStor > 1024 cyl. or LANstep / IBM PS/2 IML (Initial Microcode Load) partition, located at the end of the disk. / Windows NT Disk Administrator hidden partition / Linux Logical Volume Manager partition (old)', - 0xff => 'Xenix Bad Block Table', -); - -my %type2fs = ( -arch() =~ /^ppc/ ? ( - 0x07 => 'hpfs', -) : ( - 0x07 => 'ntfs', -), -arch() !~ /sparc/ ? ( - 0x01 => 'vfat', - 0x04 => 'vfat', - 0x05 => 'ignore', - 0x06 => 'vfat', -) : ( - 0x01 => 'ufs', - 0x02 => 'ufs', - 0x04 => 'ufs', - 0x06 => 'ufs', - 0x07 => 'ufs', - 0x08 => 'ufs', -), - 0x0b => 'vfat', - 0x0c => 'vfat', - 0x0e => 'vfat', - 0x1b => 'vfat', - 0x1c => 'vfat', - 0x1e => 'vfat', - 0x82 => 'swap', - 0x83 => 'ext2', - 0x183=> 'reiserfs', - 0x283=> 'xfs', - 0x401 => 'apple', - 0x402 => 'hfs', - nfs => 'nfs', #- hack -); - -my %types_rev = reverse %types; -my %fs2type = reverse %type2fs; - - -1; - -sub important_types { - my @l = (@important_types, if_($::expert, @important_types2, sort values %types)); - difference2(\@l, \@bad_types); -} - -sub type2name($) { $types{$_[0]} || $_[0] } -sub type2fs($) { $type2fs{$_[0]} } -sub fs2type($) { $fs2type{$_[0]} } -sub name2type($) { - local ($_) = @_; - /0x(.*)/ ? hex $1 : $types_rev{$_} || $_; -} - -sub isWholedisk($) { arch() =~ /^sparc/ && $_[0]{type} == 5 } -sub isExtended($) { arch() !~ /^sparc/ && ($_[0]{type} == 5 || $_[0]{type} == 0xf || $_[0]{type} == 0x85) } -sub isLVM($) { $_[0]{type} == 0x8e } -sub isRAID($) { $_[0]{type} == 0xfd } -sub isMDRAID { $_[0]{device} =~ /^md/ } -sub isLVMBased { $_[0]{LVMname} } -sub isSwap($) { $type2fs{$_[0]{type}} eq 'swap' } -sub isExt2($) { $type2fs{$_[0]{type}} eq 'ext2' } -sub isReiserfs($) { $type2fs{$_[0]{type}} eq 'reiserfs' } -sub isXfs($) { $type2fs{$_[0]{type}} eq 'xfs' } -sub isDos($) { arch() !~ /^sparc/ && $ {{ 1=>1, 4=>1, 6=>1 }}{$_[0]{type}} } -sub isWin($) { $ {{ 0xb=>1, 0xc=>1, 0xe=>1, 0x1b=>1, 0x1c=>1, 0x1e=>1 }}{$_[0]{type}} } -sub isFat($) { isDos($_[0]) || isWin($_[0]) } -sub isSunOS($) { arch() =~ /sparc/ && $ {{ 0x1=>1, 0x2=>1, 0x4=>1, 0x6=>1, 0x7=>1, 0x8=>1 }}{$_[0]{type}} } -sub isSolaris($) { 0; } #- hack to search for getting the difference ? TODO -sub isOtherAvailableFS($) { isFat($_[0]) || isSunOS($_[0]) } #- other OS that linux can access its filesystem -sub isNfs($) { $_[0]{type} eq 'nfs' } #- small hack -sub isNT($) { arch() !~ /^sparc/ && $_[0]{type} == 0x7 } -sub isSupermount($) { $_[0]{type} eq 'supermount' } -sub isHFS($) { $type2fs{$_[0]{type}} eq 'hfs' } -sub isApple($) { $type2fs{$_[0]{type}} eq 'apple' && defined $_[0]{isDriver} } -sub isAppleBootstrap($) { $type2fs{$_[0]{type}} eq 'apple' && defined $_[0]{isBoot} } -sub isHiddenMacPart { defined $_[0]{isMap} } -sub isLoopback { defined $_[0]{loopback_file} } -sub isTrueFS { isExt2($_[0]) || isReiserfs($_[0]) || isXfs($_[0]) } -sub isMountableRW { isTrueFS($_[0]) || isOtherAvailableFS($_[0]) } -sub isNonMountable { isRAID($_[0]) || isLVM($_[0]) } - -sub isPrimary($$) { - my ($part, $hd) = @_; - foreach (@{$hd->{primary}{raw}}) { $part eq $_ and return 1; } - 0; -} - -sub adjustStartAndEnd($$) { - my ($hd, $part) = @_; - - $hd->adjustStart($part); - $hd->adjustEnd($part); -} - -sub verifyNotOverlap($$) { - my ($a, $b) = @_; - $a->{start} + $a->{size} <= $b->{start} || $b->{start} + $b->{size} <= $a->{start}; -} -sub verifyInside($$) { - my ($a, $b) = @_; - $b->{start} <= $a->{start} && $a->{start} + $a->{size} <= $b->{start} + $b->{size}; -} - -sub verifyParts_ { - foreach my $i (@_) { - foreach (@_) { - next if !$i || !$_ || $i == $_ || isWholedisk($i) || isExtended($i); #- avoid testing twice for simplicity :-) - if (isWholedisk($_)) { - verifyInside($i, $_) or - cdie sprintf("partition sector #$i->{start} (%s) is not inside whole disk (%s)!", - formatXiB($i->{size}, 512), formatXiB($_->{size}, 512)); - } elsif (isExtended($_)) { - verifyNotOverlap($i, $_) or - log::l(sprintf("warning partition sector #$i->{start} (%s) is overlapping with extended partition!", - formatXiB($i->{size}, 512))); #- only warning for this one is acceptable - } else { - verifyNotOverlap($i, $_) or - cdie sprintf("partitions sector #$i->{start} (%s) and sector #$_->{start} (%s) are overlapping!", - formatXiB($i->{size}, 512), formatXiB($_->{size}, 512)); - } - } - } -} -sub verifyParts($) { - my ($hd) = @_; - verifyParts_(get_normal_parts($hd)); -} -sub verifyPrimary($) { - my ($pt) = @_; - $_->{start} > 0 || arch() =~ /^sparc/ || die "partition must NOT start at sector 0" foreach @{$pt->{normal}}; - verifyParts_(@{$pt->{normal}}, $pt->{extended}); -} - -sub assign_device_numbers($) { - my ($hd) = @_; - - my $i = 1; - $_->{device} = $hd->{prefix} . $i++ foreach @{$hd->{primary}{raw}}, - map { $_->{normal} } @{$hd->{extended} || []}; - - #- try to figure what the windobe drive letter could be! - # - #- first verify there's at least one primary dos partition, otherwise it - #- means it is a secondary disk and all will be false :( - my ($c, @others) = grep { isFat($_) } @{$hd->{primary}{normal}}; - - $i = ord 'C'; - $c->{device_windobe} = chr($i++) if $c; - $_->{device_windobe} = chr($i++) foreach grep { isFat($_) } map { $_->{normal} } @{$hd->{extended}}; - $_->{device_windobe} = chr($i++) foreach @others; -} - -sub remove_empty_extended($) { - my ($hd) = @_; - my $last = $hd->{primary}{extended} or return; - @{$hd->{extended}} = grep { - if ($_->{normal}) { - $last = $_; - } else { - %{$last->{extended}} = $_->{extended} ? %{$_->{extended}} : (); - } - $_->{normal}; - } @{$hd->{extended}}; - adjust_main_extended($hd); -} - -sub adjust_main_extended($) { - my ($hd) = @_; - - if (!is_empty_array_ref $hd->{extended}) { - my ($l, @l) = @{$hd->{extended}}; - - # the first is a special case, must recompute its real size - my $start = round_down($l->{normal}{start} - 1, $hd->{geom}{sectors}); - my $end = $l->{normal}{start} + $l->{normal}{size}; - my $only_linux = 1; my $has_win_lba = 0; - foreach (map $_->{normal}, $l, @l) { - $start = min($start, $_->{start}); - $end = max($end, $_->{start} + $_->{size}); - $only_linux &&= isTrueFS($_) || isSwap($_); - $has_win_lba ||= $_->{type} == 0xc || $_->{type} == 0xe; - } - $l->{start} = $hd->{primary}{extended}{start} = $start; - $l->{size} = $hd->{primary}{extended}{size} = $end - $start; - $hd->{primary}{extended}{type} = $only_linux ? 0x85 : $has_win_lba ? 0xf : 0x5 if !$::expert; - } - unless (@{$hd->{extended} || []} || !$hd->{primary}{extended}) { - %{$hd->{primary}{extended}} = (); #- modify the raw entry - delete $hd->{primary}{extended}; - } - verifyParts($hd); #- verify everything is all right -} - -sub adjust_local_extended($$) { - my ($hd, $part) = @_; - - foreach (@{$hd->{extended} || []}) { - $_->{normal} == $part or next; - $_->{size} = $part->{size} + $part->{start} - $_->{start}; - last; - } -} - -sub get_normal_parts($) { - my ($hd) = @_; - - #- HACK !! - $hd->{raid} and return grep {$_} @{$hd->{raid}}; - $hd->{loopback} and return grep {$_} @{$hd->{loopback}}; - - @{$hd->{primary}{normal} || []}, map { $_->{normal} } @{$hd->{extended} || []} -} - -sub get_holes($) { - my ($hd) = @_; - - my $start = arch() eq "alpha" ? 2048 : 1; - - map { - my $current = $start; - $start = $_->{start} + $_->{size}; - { start => $current, size => $_->{start} - $current } - } sort { $a->{start} <=> $b->{start} } grep { !isWholedisk($_) } get_normal_parts($hd), { start => $hd->{totalsectors}, size => 0 }; -} - - -sub read_one($$) { - my ($hd, $sector) = @_; - my ($pt, $info); - - #- it can be safely considered that the first sector is used to probe the partition table - #- but other sectors (typically for extended partition ones) have to match this type! - if (!$sector) { - my @parttype = arch() =~ /^sparc/ ? ('sun', 'bsd', 'unknown') : ('dos', 'bsd', 'sun', 'mac', 'unknown'); - foreach ('empty', @parttype) { - /unknown/ and die "unknown partition table format"; - eval { - require("partition_table_$_.pm"); - bless $hd, "partition_table_$_"; - ($pt, $info) = $hd->read($sector); - log::l("found a $_ partition table on $hd->{file} at sector $sector"); - }; - $@ or last; - } - } else { - #- keep current blessed object for that, this means it is neccessary to read sector 0 before. - ($pt, $info) = $hd->read($sector); - } - - my @extended = $hd->hasExtended ? grep { isExtended($_) } @$pt : (); - my @normal = grep { $_->{size} && $_->{type} && !isExtended($_) } @$pt; - - @extended > 1 and die "more than one extended partition"; - - $_->{rootDevice} = $hd->{device} foreach @normal, @extended; - { raw => $pt, extended => $extended[0], normal => \@normal, info => $info }; -} - -sub read($;$) { - my ($hd, $clearall) = @_; - if ($clearall) { - partition_table_raw::zero_MBR_and_dirty($hd); - return 1; - } - my $pt = read_one($hd, 0) or return 0; - $hd->{primary} = $pt; - undef $hd->{extended}; - verifyPrimary($pt); - eval { - $pt->{extended} and read_extended($hd, $pt->{extended}) || return 0; - }; die "extended partition: $@" if $@; - - assign_device_numbers($hd); - remove_empty_extended($hd); - 1; -} - -sub read_extended { - my ($hd, $extended) = @_; - - my $pt = read_one($hd, $extended->{start}) or return 0; - $pt = { %$extended, %$pt }; - - push @{$hd->{extended}}, $pt; - @{$hd->{extended}} > 100 and die "oops, seems like we're looping here :( (or you have more than 100 extended partitions!)"; - - @{$pt->{normal}} <= 1 or die "more than one normal partition in extended partition"; - @{$pt->{normal}} >= 1 or cdie "no normal partition in extended partition"; - $pt->{normal} = $pt->{normal}[0]; - #- in case of extended partitions, the start sector is local to the partition or to the first extended_part! - $pt->{normal}{start} += $pt->{start}; - - #- the following verification can broke an existing partition table that is - #- correctly read by fdisk or cfdisk. maybe the extended partition can be - #- recomputed to get correct size. - if (!verifyInside($pt->{normal}, $extended)) { - $extended->{size} = $pt->{normal}{start} + $pt->{normal}{size}; - verifyInside($pt->{normal}, $extended) or die "partition $pt->{normal}{device} is not inside its extended partition"; - } - - if ($pt->{extended}) { - $pt->{extended}{start} += $hd->{primary}{extended}{start}; - read_extended($hd, $pt->{extended}) or return 0; - } - 1; -} - -# write the partition table -sub write($) { - my ($hd) = @_; - $hd->{isDirty} or return; - - #- set first primary partition active if no primary partitions are marked as active. - for ($hd->{primary}{raw}) { - (grep { $_->{local_start} = $_->{start}; $_->{active} ||= 0 } @$_) or $_->[0]{active} = 0x80; - } - - #- last chance for verification, this make sure if an error is detected, - #- it will never be writed back on partition table. - verifyParts($hd); - - $hd->write(0, $hd->{primary}{raw}, $hd->{primary}{info}) or die "writing of partition table failed"; - - #- should be fixed but a extended exist with no real extended partition, that blanks mbr! - if (arch() !~ /^sparc/) { - foreach (@{$hd->{extended}}) { - # in case of extended partitions, the start sector must be local to the partition - $_->{normal}{local_start} = $_->{normal}{start} - $_->{start}; - $_->{extended} and $_->{extended}{local_start} = $_->{extended}{start} - $hd->{primary}{extended}{start}; - - $hd->write($_->{start}, $_->{raw}) or die "writing of partition table failed"; - } - } - $hd->{isDirty} = 0; - $hd->{hasBeenDirty} = 1; #- used in undo (to know if undo should believe isDirty or not) - - #- now sync disk and re-read the partition table - if ($hd->{needKernelReread}) { - sync(); - $hd->kernel_read; - $hd->{needKernelReread} = 0; - } -} - -sub active($$) { - my ($hd, $part) = @_; - - $_->{active} = 0 foreach @{$hd->{primary}{normal}}; - $part->{active} = 0x80; - $hd->{isDirty} = 1; -} - - -# remove a normal partition from hard drive hd -sub remove($$) { - my ($hd, $part) = @_; - my $i; - - #- first search it in the primary partitions - $i = 0; foreach (@{$hd->{primary}{normal}}) { - if ($_ eq $part) { - splice(@{$hd->{primary}{normal}}, $i, 1); - %$_ = (); #- blank it - - return $hd->{isDirty} = $hd->{needKernelReread} = 1; - } - $i++; - } - - my ($first, $second, $third) = map { $_->{normal} } @{$hd->{extended} || []}; - if ($third && $first eq $part) { - die "Can't handle removing hda5 when hda6 is not the second partition" if $second->{start} > $third->{start}; - } - - #- otherwise search it in extended partitions - foreach (@{$hd->{extended} || []}) { - $_->{normal} eq $part or next; - - delete $_->{normal}; #- remove it - remove_empty_extended($hd); - - return $hd->{isDirty} = $hd->{needKernelReread} = 1; - } - 0; -} - -# create of partition at starting at `start', of size `size' and of type `type' (nice comment, uh?) -sub add_primary($$) { - my ($hd, $part) = @_; - - { - local $hd->{primary}{normal}; #- save it to fake an addition of $part, that way add_primary do not modify $hd if it fails - push @{$hd->{primary}{normal}}, $part; - adjust_main_extended($hd); #- verify - raw_add($hd->{primary}{raw}, $part); - } - push @{$hd->{primary}{normal}}, $part; #- really do it -} - -sub add_extended { - arch() =~ /^sparc/ and die _("Extended partition not supported on this platform"); - - my ($hd, $part, $extended_type) = @_; - $extended_type =~ s/Extended_?//; - - my $e = $hd->{primary}{extended}; - - if ($e && !verifyInside($part, $e)) { - #-die "sorry, can't add outside the main extended partition" unless $::unsafe; - my $end = $e->{start} + $e->{size}; - my $start = min($e->{start}, $part->{start}); - $end = max($end, $part->{start} + $part->{size}) - $start; - - { #- faking a resizing of the main extended partition to test for problems - local $e->{start} = $start; - local $e->{size} = $end - $start; - eval { verifyPrimary($hd->{primary}) }; - $@ and die -_("You have a hole in your partition table but I can't use it. -The only solution is to move your primary partitions to have the hole next to the extended partitions"); - } - } - - if ($e && $part->{start} < $e->{start}) { - my $l = first (@{$hd->{extended}}); - - #- the first is a special case, must recompute its real size - $l->{start} = round_down($l->{normal}{start} - 1, $hd->cylinder_size()); - $l->{size} = $l->{normal}{start} + $l->{normal}{size} - $l->{start}; - my $ext = { %$l }; - unshift @{$hd->{extended}}, { type => 5, raw => [ $part, $ext, {}, {} ], normal => $part, extended => $ext }; - #- size will be autocalculated :) - } else { - my ($ext, $ext_size) = is_empty_array_ref($hd->{extended}) ? - ($hd->{primary}, -1) : #- -1 size will be computed by adjust_main_extended - (top(@{$hd->{extended}}), $part->{size}); - my %ext = ( type => $extended_type || 5, start => $part->{start}, size => $ext_size ); - - raw_add($ext->{raw}, \%ext); - $ext->{extended} = \%ext; - push @{$hd->{extended}}, { %ext, raw => [ $part, {}, {}, {} ], normal => $part }; - } - $part->{start}++; $part->{size}--; #- let it start after the extended partition sector - adjustStartAndEnd($hd, $part); - - adjust_main_extended($hd); -} - -sub add($$;$$) { - my ($hd, $part, $primaryOrExtended, $forceNoAdjust) = @_; - - get_normal_parts($hd) >= ($hd->{device} =~ /^rd/ ? 7 : $hd->{device} =~ /^(sd|ida|cciss)/ ? 15 : 63) and cdie "maximum number of partitions handled by linux reached"; - - $part->{notFormatted} = 1; - $part->{isFormatted} = 0; - $part->{rootDevice} = $hd->{device}; - $hd->{isDirty} = $hd->{needKernelReread} = 1; - $part->{start} ||= 1 if arch() !~ /^sparc/; #- starting at sector 0 is not allowed - adjustStartAndEnd($hd, $part) unless $forceNoAdjust; - - my $e = $hd->{primary}{extended}; - my $nb_primaries = $hd->{device} =~ /^rd/ ? 3 : 1; - - if (arch() =~ /^sparc|ppc/ || - $primaryOrExtended eq 'Primary' || - $primaryOrExtended !~ /Extended/ && @{$hd->{primary}{normal} || []} < $nb_primaries) { - eval { add_primary($hd, $part) }; - return unless $@; - } - eval { add_extended($hd, $part, $primaryOrExtended) } if $hd->hasExtended; #- try adding extended - if ($@ || !$hd->hasExtended) { - eval { add_primary($hd, $part) }; - die $@ if $@; #- send the add extended error which should be better - } -} - -# search for the next partition -sub next($$) { - my ($hd, $part) = @_; - - first( - sort { $a->{start} <=> $b->{start} } - grep { $_->{start} >= $part->{start} + $part->{size} } - get_normal_parts($hd) - ); -} -sub next_start($$) { - my ($hd, $part) = @_; - my $next = &next($hd, $part); - $next ? $next->{start} : $hd->{totalsectors}; -} - -sub can_raw_add { - my ($hd) = @_; - $_->{size} || $_->{type} or return 1 foreach @{$hd->{primary}{raw}}; - 0; -} -sub raw_add { - my ($raw, $part) = @_; - - foreach (@$raw) { - $_->{size} || $_->{type} and next; - $_ = $part; - return; - } - die "raw_add: partition table already full"; -} - -sub load($$;$) { - my ($hd, $file, $force) = @_; - - local *F; - open F, $file or die _("Error reading file %s", $file); - - my $h; - { - local $/ = "\0"; - eval <F>; - } - $@ and die _("Restoring from file %s failed: %s", $file, $@); - - ref $h eq 'ARRAY' or die _("Bad backup file"); - - my %h; @h{@fields2save} = @$h; - - $h{totalsectors} == $hd->{totalsectors} or $force or cdie "bad totalsectors"; - - #- unsure we don't modify totalsectors - local $hd->{totalsectors}; - - @{$hd}{@fields2save} = @$h; - - delete @$_{qw(isMounted isFormatted notFormatted toFormat toFormatUnsure)} foreach get_normal_parts($hd); - $hd->{isDirty} = $hd->{needKernelReread} = 1; -} - -sub save($$) { - my ($hd, $file) = @_; - my @h = @{$hd}{@fields2save}; - local *F; - require Data::Dumper; - open F, ">$file" - and print F Data::Dumper->Dump([\@h], ['$h']), "\0" - or die _("Error writing to file %s", $file); -} |