1# $FreeBSD$ 2 3use strict; 4use warnings; 5use Test::More tests => 19; 6use Fcntl qw(:DEFAULT :seek); 7 8use constant BLK => 512; 9use constant BLKS_PER_MB => 2048; 10 11my $unit; 12END { system "mdconfig -du$unit" if defined $unit }; 13 14sub setsize { 15 my ($partszMB, $unitszMB) = @_; 16 17 open my $fd, "|-", "bsdlabel -R md$unit /dev/stdin" or die; 18 print $fd "a: ", ($partszMB * BLKS_PER_MB), " 0 4.2BSD 1024 8192\n"; 19 print $fd "c: ", ($unitszMB * BLKS_PER_MB), " 0 unused 0 0\n"; 20 close $fd; 21} 22 23sub fill { 24 my ($start, $size, $content) = @_; 25 26 my $content512 = $content x (int(512 / length $content) + 1); 27 substr($content512, 512) = ""; 28 sysopen my $fd, "/dev/md$unit", O_RDWR or die "/dev/md$unit: $!"; 29 seek($fd, $start * BLK, SEEK_SET); 30 while ($size) { 31 syswrite($fd, $content512) == 512 or die "write: $!"; 32 $size--; 33 } 34} 35 36SKIP: { 37 skip "Cannot test without UID 0", 19 if $<; 38 39 chomp(my $md = `mdconfig -s40m`); 40 like($md, qr/^md\d+$/, "Created $md with size 40m") or die; 41 $unit = substr $md, 2; 42 43 for my $type (1..2) { 44 45 initialise: { 46 ok(setsize(10, 40), "Sized ${md}a to 10m"); 47 system "newfs -O $type -U ${md}a >/dev/null"; 48 is($?, 0, "Initialised the filesystem on ${md}a as UFS$type"); 49 chomp(my @out = `fsck -tufs -y ${md}a`); 50 ok(!grep(/MODIFIED/, @out), "fsck says ${md}a is clean, " . 51 scalar(@out) . " lines of output"); 52 } 53 54 extend20_zeroed: { 55 ok(setsize(20, 40), "Sized ${md}a to 20m"); 56 diag "Filling the extent with zeros"; 57 fill(10 * BLKS_PER_MB, 10 * BLKS_PER_MB, chr(0)); 58 my $out = `growfs -y ${md}a`; 59 is($?, 0, "Extended the filesystem on ${md}a") or print $out; 60 61 my ($unallocated) = $out =~ m{\d+ sectors cannot be allocated}; 62 fill(30 * BLKS_PER_MB - $unallocated, $unallocated, chr(0)) 63 if $unallocated; 64 65 chomp(my @out = `fsck -tufs -y ${md}a`); 66 ok(!grep(/MODIFIED/, @out), "fsck says ${md}a is clean, " . 67 scalar(@out) . " lines of output"); 68 } 69 70 extend30_garbaged: { 71 ok(setsize(30, 40), "Sized ${md}a to 30m"); 72 diag "Filling the extent with garbage"; 73 fill(20 * BLKS_PER_MB, 10 * BLKS_PER_MB, chr(0xaa) . chr(0x55)); 74 my $out = `growfs -y ${md}a`; 75 is($?, 0, "Extended the filesystem on ${md}a") or print $out; 76 77 my ($unallocated) = $out =~ m{\d+ sectors cannot be allocated}; 78 fill(30 * BLKS_PER_MB - $unallocated, $unallocated, chr(0)) 79 if $unallocated; 80 81 chomp(my @out = `fsck -tufs -y ${md}a`); 82 ok(!grep(/MODIFIED/, @out), "fsck says ${md}a is clean, " . 83 scalar(@out) . " lines of output"); 84 } 85 } 86 87 system "mdconfig -du$unit"; 88 undef $unit; 89} 90