diff options
Diffstat (limited to 'perl-install/fsedit.pm')
| -rw-r--r-- | perl-install/fsedit.pm | 335 |
1 files changed, 0 insertions, 335 deletions
diff --git a/perl-install/fsedit.pm b/perl-install/fsedit.pm deleted file mode 100644 index c4e43e148..000000000 --- a/perl-install/fsedit.pm +++ /dev/null @@ -1,335 +0,0 @@ -package fsedit; - -use diagnostics; -use strict; - -#-###################################################################################### -#- misc imports -#-###################################################################################### -use common qw(:common :constant :functional); -use partition_table qw(:types); -use partition_table_raw; -use Data::Dumper; -use devices; -use log; - -#-##################################################################################### -#- Globals -#-##################################################################################### -my @suggestions = ( - { mntpoint => "/boot", minsize => 10 << 11, size => 16 << 11, type => 0x83 }, - { mntpoint => "/", minsize => 50 << 11, size => 100 << 11, type => 0x83 }, - { mntpoint => "swap", minsize => 30 << 11, size => 60 << 11, type => 0x82 }, - { mntpoint => "/usr", minsize => 200 << 11, size => 600 << 11, type => 0x83 }, - { mntpoint => "/home", minsize => 50 << 11, size => 200 << 11, type => 0x83 }, - { mntpoint => "/var", minsize => 200 << 11, size => 250 << 11, type => 0x83 }, - { mntpoint => "/tmp", minsize => 50 << 11, size => 100 << 11, type => 0x83 }, - { mntpoint => "/mnt/iso", minsize => 700 << 11, size => 800 << 11, type => 0x83 }, -); -my @suggestions_mntpoints = qw(/mnt/dos); - - -#-###################################################################################### -#- Functions -#-###################################################################################### -sub suggestions_mntpoint($) { - my ($hds) = @_; - sort grep { !/swap/ && !has_mntpoint($_, $hds) } - (@suggestions_mntpoints, map { $_->{mntpoint} } @suggestions); -} - -sub hds($$) { - my ($drives, $flags) = @_; - my @hds; - my $rc; - - foreach (@$drives) { - my $file = devices::make($_->{device}); - - my $hd = partition_table_raw::get_geometry($file) or die _("An error occurred while getting the geometry of block device %s: %s", $file, "$!"); - $hd = { (%$_, %$hd) }; - $hd->{file} = $file; - $hd->{prefix} = $hd->{device}; - # for RAID arrays of format c0d0p1 - $hd->{prefix} .= "p" if $hd->{prefix} =~ m,(rd|ida)/,; - - eval { partition_table::read($hd, $flags->{clearall}) }; - if ($@) { - cdie($@) unless $flags->{eraseBadPartitions}; - partition_table_raw::zero_MBR($hd); - } - push @hds, $hd; - } - [ @hds ]; -} - -sub get_fstab(@) { - map { partition_table::get_normal_parts($_) } @_; -} - -sub get_root($) { - my ($fstab) = @_; - $_->{mntpoint} eq "/" and return $_ foreach @$fstab; - undef; -} -sub get_root_ { get_root([ get_fstab(@{$_[0]}) ]) } - -sub suggest_part($$$;$) { - my ($hd, $part, $hds, $suggestions) = @_; - $suggestions ||= \@suggestions; - foreach (@$suggestions) { $_->{minsize} ||= $_->{size} } - - my $has_swap = grep { isSwap($_) } get_fstab(@$hds); - - my ($best, $second) = - grep { $part->{size} >= $_->{minsize} } - grep { ! has_mntpoint($_->{mntpoint}, $hds) || isSwap($_) && !$has_swap } - @$suggestions or return; - - $best = $second if - $best->{mntpoint} eq '/boot' && - $part->{start} + $best->{minsize} > 1024 * partition_table::cylinder_size($hd); #- if the empty slot is beyond the 1024th cylinder, no use having /boot - - defined $best or return; #- sorry no suggestion :( - - $part->{mntpoint} = $best->{mntpoint}; - $part->{type} = $best->{type}; - $part->{size} = min($part->{size}, $best->{size}); - 1; -} - - -#-sub partitionDrives { -#- -#- my $cmd = "/sbin/fdisk"; -#- -x $cmd or $cmd = "/usr/bin/fdisk"; -#- -#- my $drives = findDrivesPresent() or die "You don't have any hard drives available! You probably forgot to configure a SCSI controller."; -#- -#- foreach (@$drives) { -#- my $text = "/dev/" . $_->{device}; -#- $text .= " - SCSI ID " . $_->{id} if $_->{device} =~ /^sd/; -#- $text .= " - Model " . $_->{info}; -#- $text .= " array" if $_->{device} =~ /^c.d/; -#- -#- #- truncate at 50 columns for now -#- $text = substr $text, 0, 50; -#- } -#- #-TODO TODO -#-} - - -sub has_mntpoint($$) { - my ($mntpoint, $hds) = @_; - scalar grep { $mntpoint eq $_->{mntpoint} } get_fstab(@$hds); -} - -#- do this before modifying $part->{mntpoint} -#- $part->{mntpoint} should not be used here, use $mntpoint instead -sub check_mntpoint { - my ($mntpoint, $hd, $part, $hds) = @_; - - $mntpoint eq '' || isSwap($part) and return; - - local $_ = $mntpoint; - m|^/| or die _("Mount points must begin with a leading /"); -#- m|(.)/$| and die "The mount point $_ is illegal.\nMount points may not end with a /"; - - has_mntpoint($mntpoint, $hds) and die _("There is already a partition with mount point %s", $mntpoint); - - if ($part->{start} + $part->{size} > 1024 * partition_table::cylinder_size($hd)) { - die "/boot ending on cylinder > 1024" if $mntpoint eq "/boot"; - die "/ ending on cylinder > 1024" if $mntpoint eq "/" && !has_mntpoint("/boot", $hds); - } -} - -sub add($$$;$) { - my ($hd, $part, $hds, $options) = @_; - - isSwap($part) ? - ($part->{mntpoint} = 'swap') : - $options->{force} || check_mntpoint($part->{mntpoint}, $hd, $part, $hds); - - partition_table::add($hd, $part, $options->{primaryOrExtended}); -} - -sub removeFromList($$$) { - my ($start, $end, $list) = @_; - my $err = "error in removeFromList: removing an non-free block"; - - for (my $i = 0; $i < @$list; $i += 2) { - $start < $list->[$i] and die $err; - $start > $list->[$i + 1] and next; - - if ($start == $list->[$i]) { - $end > $list->[$i + 1] and die $err; - if ($end == $list->[$i + 1]) { - #- the free block is just the same size, removing it - splice(@$list, 0, 2); - } else { - #- the free block now start just after this block - $list->[$i] = $end; - } - } else { - $end <= $list->[$i + 1] or die $err; - if ($end < $list->[$i + 1]) { - splice(@$list, $i + 2, 0, $end, $list->[$i + 1]); - } - $list->[$i + 1] = $start; #- shorten the free block - } - return; - } -} - - -sub allocatePartitions($$) { - my ($hds, $to_add) = @_; - my %free_sectors = map { $_->{device} => [1, $_->{totalsectors} ] } @$hds; #- first sector is always occupied by the MBR - my $remove = sub { removeFromList($_[0]{start}, $_[0]->{start} + $_[0]->{size}, $free_sectors{$_[0]->{rootDevice}}) }; - my $success = 0; - - foreach (get_fstab(@$hds)) { &$remove($_); } - - FSTAB: foreach (@$to_add) { - my %e = %$_; - foreach my $hd (@$hds) { - my $v = $free_sectors{$hd->{device}}; - for (my $i = 0; $i < @$v; $i += 2) { - my $size = $v->[$i + 1] - $v->[$i]; - $e{size} > $size and next; - - if ($v->[$i] + $e{size} > 1024 * partition_table::cylinder_size($hd)) { - next if $e{mntpoint} eq "/boot" || - $e{mntpoint} eq "/" && !has_mntpoint("/boot", $hds); - } - $e{start} = $v->[$i]; - $e{rootDevice} = $hd->{device}; - partition_table::adjustStartAndEnd($hd, \%e); - &$remove(\%e); - partition_table::add($hd, \%e); - $success++; - next FSTAB; - } - } - log::ld("can't allocate partition $e{mntpoint} of size $e{size}, not enough room"); - } - $success; -} - -sub auto_allocate($;$) { - my ($hds, $suggestions) = @_; - allocatePartitions($hds, [ - grep { ! has_mntpoint($_->{mntpoint}, $hds) } - @{ $suggestions || \@suggestions } - ]); - map { partition_table::assign_device_numbers($_) } @$hds; -} - -sub undo_prepare($) { - my ($hds) = @_; - $Data::Dumper::Purity = 1; - foreach (@$hds) { - my @h = @{$_}{@partition_table::fields2save}; - push @{$_->{undo}}, Data::Dumper->Dump([\@h], ['$h']); - } -} -sub undo_forget($) { - my ($hds) = @_; - pop @{$_->{undo}} foreach @$hds; -} - -sub undo($) { - my ($hds) = @_; - foreach (@$hds) { - my $h; eval pop @{$_->{undo}} || next; - @{$_}{@partition_table::fields2save} = @$h; - - $_->{isDirty} = $_->{needKernelReread} = 1; - } -} - -sub move { - my ($hd, $part, $hd2, $sector2) = @_; - - my $part2 = { %$part }; - $part2->{start} = $sector2; - $part2->{size} += partition_table::cylinder_size($hd2) - 1; - partition_table::remove($hd, $part); - { - local ($part2->{notFormatted}, $part2->{isFormatted}); #- do not allow partition::add to change this - partition_table::add($hd2, $part2); - } - - return if $part2->{notFormatted} && !$part2->{isFormatted} || $::testing; - - local (*F, *G); - sysopen F, $hd->{file}, 0 or die ''; - sysopen G, $hd2->{file}, 2 or die _("Error opening %s for writing: %s", $hd2->{file}, "$!"); - - my $base = $part->{start}; - my $base2 = $part2->{start}; - my $step = 1 << 10; - if ($hd eq $hd2) { - $part->{start} == $part2->{start} and return; - $step = min($step, abs($part->{start} - $part2->{start})); - - if ($part->{start} < $part2->{start}) { - $base += $part->{size} - $step; - $base2 += $part->{size} - $step; - $step = -$step; - } - } - - my $f = sub { - c::lseek_sector(fileno(F), $base, 0) or die "seeking to sector $base failed on drive $hd->{device}"; - c::lseek_sector(fileno(G), $base2, 0) or die "seeking to sector $base2 failed on drive $hd2->{device}"; - - my $buf; - sysread F, $buf, $SECTORSIZE * abs($_[0]) or die ''; - syswrite G, $buf; - }; - - for (my $i = 0; $i < $part->{size} / abs($step); $i++, $base += $step, $base2 += $step) { - &$f($step); - } - if (my $v = $part->{size} % abs($step) * sign($step)) { - $base += $v; - $base2 += $v; - &$f($v); - } -} - -sub rescuept($) { - my ($hd) = @_; - my ($ext, @hd); - - my $dev = devices::make($hd->{device}); - open F, "rescuept $dev|"; - foreach (<F>) { - my ($st, $si, $id) = /start=\s*(\d+),\s*size=\s*(\d+),\s*Id=\s*(\d+)/ or next; - my $part = { start => $st, size => $si, type => hex($id) }; - if (isExtended($part)) { - $ext = $part; - } else { - push @hd, $part; - } - } - close F or die "rescuept failed"; - - partition_table_raw::zero_MBR($hd); - foreach (@hd) { - my $b = partition_table::verifyInside($_, $ext); - if ($b) { - $_->{start}--; - $_->{size}++; - } - local $b->{notFormatted}; - - partition_table::add($hd, $_, ($b ? 'Extended' : 'Primary'), 1); - } -} - -#-###################################################################################### -#- Wonderful perl :( -#-###################################################################################### -1; # |