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|
#!/usr/bin/perl
# Start a KVM machine and run a number of tests against it.
# Copyright (C) 2005-2008 Jelmer Vernooij <jelmer@samba.org>
# Published under the GNU GPL, v3 or later.
package Kvm;
use strict;
use Cwd qw(abs_path);
use FindBin qw($RealBin);
use POSIX;
sub new($$$$) {
my ($classname, $dc_image, $vdesocket) = @_;
my $self = {
dc_image => $dc_image,
vdesocket => $vdesocket,
};
bless $self;
return $self;
}
sub write_kvm_ifup($$$)
{
my ($self, $path, $ip_prefix) = @_;
open(SCRIPT, ">$path/kvm-ifup");
print SCRIPT <<__EOF__;
#!/bin/sh
PREFIX=$ip_prefix
/sbin/ifconfig \$1 \$PREFIX.1 up
cat <<EOF>$path/udhcpd.conf
interface \$1
start \$PREFIX.20
end \$PREFIX.20
max_leases 1
lease_file $path/udhcpd.leases
pidfile $path/udhcpd.pid
EOF
touch $path/udhcpd.leases
/usr/sbin/udhcpd $path/udhcpd.conf
exit 0
__EOF__
close(SCRIPT);
chmod(0755, "$path/kvm-ifup");
return ("$path/kvm-ifup", "$path/udhcpd.pid", "$ip_prefix.20");
}
sub teardown_env($$)
{
my ($self, $envvars) = @_;
print "Killing kvm instance $envvars->{KVM_PID}\n";
kill 9, $envvars->{KVM_PID};
if (defined($envvars->{DHCPD_PID})) {
print "Killing dhcpd instance $envvars->{DHCPD_PID}\n";
kill 9, $envvars->{DHCPD_PID};
}
return 0;
}
sub getlog_env($$)
{
my ($self, $envvars) = @_;
return "";
}
sub check_env($$)
{
my ($self, $envvars) = @_;
# FIXME: Check whether $self->{pid} is still running
return 1;
}
sub read_pidfile($)
{
my ($path) = @_;
open(PID, $path);
<PID> =~ /([0-9]+)/;
my ($pid) = $1;
close(PID);
return $pid;
}
sub start($$$)
{
my ($self, $path, $image) = @_;
my $pidfile = "$path/kvm.pid";
my $opts = (defined($ENV{KVM_OPTIONS})?$ENV{KVM_OPTIONS}:"-nographic");
if (defined($ENV{KVM_SNAPSHOT})) {
$opts .= " -loadvm $ENV{KVM_SNAPSHOT}";
}
my $netopts;
my $dhcp_pid;
my $ip_address;
if ($self->{vdesocket}) {
$netopts = "vde,socket=$self->{vdesocket}";
} else {
my $ifup_script, $dhcpd_pidfile;
($ifup_script, $dhcpd_pidfile, $ip_address) = $self->write_kvm_ifup($path, "192.168.9");
$netopts = "tap,script=$ifup_script";
$dhcp_pid = read_pidfile($dhcpd_pidfile);
}
system("kvm -name \"Samba 4 Test Subject\" $opts -monitor unix:$path/kvm.monitor,server,nowait -daemonize -pidfile $pidfile -snapshot $image -net nic -net $netopts");
return (read_pidfile($pidfile), $dhcp_pid, $ip_address);
}
sub setup_env($$$)
{
my ($self, $envname, $path) = @_;
if ($envname eq "dc") {
($self->{dc_pid}, $self->{dc_dhcpd_pid}, $self->{dc_ip}) = $self->start($path, $self->{dc_image});
sub choose_var($$) {
my ($name, $default) = @_;
return defined($ENV{"KVM_DC_$name"})?$ENV{"KVM_DC_$name"}:$default;
}
if ($envname eq "dc") {
return {
KVM_PID => $self->{dc_pid},
DHCPD_PID => $self->{dc_dhcpd_pid},
USERNAME => choose_var("USERNAME", "Administrator"),
PASSWORD => choose_var("PASSWORD", "penguin"),
DOMAIN => choose_var("DOMAIN", "SAMBA"),
REALM => choose_var("REALM", "SAMBA"),
SERVER => choose_var("SERVER", "DC"),
SERVER_IP => $self->{dc_ip},
NETBIOSNAME => choose_var("NETBIOSNAME", "DC"),
NETBIOSALIAS => choose_var("NETBIOSALIAS", "DC"),
};
} else {
return undef;
}
} else {
return undef;
}
}
1;
|
