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#!/usr/bin/perl
# Copyright (C) 2012 Red Hat Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
# Test adding maximum number of disks to the guest.
use strict;
use warnings;
use Sys::Guestfs;
my $errors = 0;
my $g = Sys::Guestfs->new ();
my $max_disks = $g->max_disks ();
printf "max_disks is %d\n", $max_disks;
# Create large number of disks.
my ($name, $i, $j);
for ($i = 0; $i < $max_disks; ++$i) {
$name = sprintf "test%d.img", $i;
#print "adding $name => /dev/sd", drive_name($i), "\n";
unlink $name;
open FILE, ">$name" or die "$name: $!";
truncate FILE, 1024*1024 or die "$name: truncate: $!";
close FILE or die "$name: $!";
$g->add_drive_opts ($name, format => "raw");
}
$g->launch ();
# Check the disks were added.
my @devices = $g->list_devices ();
if (@devices != $max_disks) {
print STDERR "$0: incorrect number of devices returned by \$g->list_devices:\n";
print STDERR "$0: \@devices = ", join (" ", @devices), "\n";
$errors++;
}
for ($i = 0; $i < $max_disks; ++$i) {
my $expected = drive_name ($i);
unless ($devices[$i] =~ m{/dev/.d$expected$}) {
print STDERR "$0: incorrect device name at index $i: ",
"expected /dev/sd$expected, but got $devices[$i]\n";
$errors++;
}
}
# Check device_index.
for ($i = 0; $i < $max_disks; ++$i) {
if ($i != $g->device_index ($devices[$i])) {
print STDERR "$0: incorrect device index for $devices[$i]\n";
$errors++;
}
}
# Put some data on each disk to check they are mountable, writable etc.
for ($i = 0; $i < $max_disks; ++$i) {
my $dev = $devices[$i];
$g->mkmountpoint ("/mp$i");
# To save time in the test, add 15 partitions to the first disk
# and last disks only, and 1 partition to every other disk. Note
# that 15 partitions is the max allowed by virtio-blk.
my $part;
if ($i == 0 || $i == $max_disks-1) {
$g->part_init ($dev, "gpt");
for ($j = 1; $j <= 14; ++$j) {
$g->part_add ($dev, "p", 64*$j, 64*$j+63);
}
$g->part_add ($dev, "p", 64*15, -64);
$part = $dev . "15";
}
else {
$g->part_disk ($dev, "mbr");
$part = $dev . "1";
}
$g->mkfs ("ext2", "$part");
$g->mount ("$part", "/mp$i");
$g->write ("/mp$i/disk$i", "This is disk #$i.\n");
}
for ($i = 0; $i < $max_disks; ++$i) {
if ($g->cat ("/mp$i/disk$i") ne "This is disk #$i.\n") {
print STDERR "$0: unexpected content in file /mp$i/disk$i\n";
$errors++;
}
}
# Enumerate and check partition names.
my @partitions = $g->list_partitions ();
if (@partitions != $max_disks + 14*2) {
print STDERR "$0: incorrect number of partitions returned by \$g->list_partitions:\n";
print STDERR "$0: \@partitions = ", join (" ", @partitions), "\n";
$errors++;
}
for ($i = 0, $j = 0; $i < $max_disks; ++$i) {
my $expected = drive_name ($i);
if ($i == 0 || $i == $max_disks-1) {
unless ($partitions[$j++] =~ m{/dev/.d${expected}1$} &&
$partitions[$j++] =~ m{/dev/.d${expected}2$} &&
$partitions[$j++] =~ m{/dev/.d${expected}3$} &&
$partitions[$j++] =~ m{/dev/.d${expected}4$} &&
$partitions[$j++] =~ m{/dev/.d${expected}5$} &&
$partitions[$j++] =~ m{/dev/.d${expected}6$} &&
$partitions[$j++] =~ m{/dev/.d${expected}7$} &&
$partitions[$j++] =~ m{/dev/.d${expected}8$} &&
$partitions[$j++] =~ m{/dev/.d${expected}9$} &&
$partitions[$j++] =~ m{/dev/.d${expected}10$} &&
$partitions[$j++] =~ m{/dev/.d${expected}11$} &&
$partitions[$j++] =~ m{/dev/.d${expected}12$} &&
$partitions[$j++] =~ m{/dev/.d${expected}13$} &&
$partitions[$j++] =~ m{/dev/.d${expected}14$} &&
$partitions[$j++] =~ m{/dev/.d${expected}15$}) {
print STDERR "$0: incorrect partition name at index $i\n";
$errors++;
}
} else {
unless ($partitions[$j++] =~ m{/dev/.d${expected}1$}) {
print STDERR "$0: incorrect partition name at index $i\n";
$errors++;
}
}
}
$g->umount_all ();
$g->close ();
for ($i = 0; $i < $max_disks; ++$i) {
$name = sprintf "test%d.img", $i;
unlink $name;
}
exit ($errors == 0 ? 0 : 1);
sub drive_name
{
my $index = shift;
my $prefix = "";
if ($index >= 26) {
$prefix = drive_name ($index/26 - 1);
}
$index %= 26;
return $prefix . chr (97 + $index);
}
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