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# -*- perl -*-
#
# INetSim::Dummy::UDP - A dummy UDP server
#
# (c)2008-2010 Matthias Eckert, Thomas Hungenberg
#
# Version 0.4 (2010-04-12)
#
# For history/changelog see bottom of this file.
#
#############################################################
package INetSim::Dummy::UDP;
use strict;
use warnings;
use base qw(INetSim::Dummy);
sub configure_hook {
my $self = shift;
$self->{server}->{host} = &INetSim::Config::getConfigParameter("Default_BindAddress"); # bind to address
$self->{server}->{port} = &INetSim::Config::getConfigParameter("Dummy_UDP_BindPort"); # bind to port
$self->{server}->{proto} = 'udp'; # UDP protocol
$self->{server}->{user} = &INetSim::Config::getConfigParameter("Default_RunAsUser"); # user to run as
$self->{server}->{group} = &INetSim::Config::getConfigParameter("Default_RunAsGroup"); # group to run as
$self->{server}->{setsid} = 0; # do not daemonize
$self->{server}->{no_client_stdout} = 1; # do not attach client to STDOUT
$self->{server}->{log_level} = 0; # do not log anything
# $self->{server}->{udp_recv_len} = 1024; # default is 4096
$self->{servicename} = &INetSim::Config::getConfigParameter("Dummy_UDP_ServiceName");
$self->{max_childs} = &INetSim::Config::getConfigParameter("Default_MaxChilds");
}
sub pre_loop_hook {
my $self = shift;
$0 = "inetsim_$self->{servicename}";
&INetSim::Log::MainLog("started (PID $$)", $self->{servicename});
}
sub pre_server_close_hook {
my $self = shift;
&INetSim::Log::MainLog("stopped (PID $$)", $self->{servicename});
}
sub fatal_hook {
my $self = shift;
&INetSim::Log::MainLog("failed!", $self->{servicename});
exit 0;
}
sub process_request {
my $self = shift;
my $client = $self->{server}->{client};
my $rhost = $self->{server}->{peeraddr};
my $rport = $self->{server}->{peerport};
my $stat_success = 0;
&INetSim::Log::SubLog("[$rhost:$rport] connect", $self->{servicename}, $$);
if ($self->{server}->{numchilds} >= $self->{max_childs}) {
print $client "Maximum number of connections ($self->{max_childs}) exceeded.\n";
&INetSim::Log::SubLog("[$rhost:$rport] Connection refused - maximum number of connections ($self->{max_childs}) exceeded.", $self->{servicename}, $$);
}
else {
my $recvmsg = $self->{server}->{udp_data};
$recvmsg =~ s/^[\r\n]+//g;
$recvmsg =~ s/[\r\n]+$//g;
if ($recvmsg ne "") {
&INetSim::Log::SubLog("[$rhost:$rport] recv: " . $recvmsg, $self->{servicename}, $$);
$stat_success = 1;
}
}
&INetSim::Log::SubLog("[$rhost:$rport] disconnect", $self->{servicename}, $$);
&INetSim::Log::SubLog("[$rhost:$rport] stat: $stat_success", $self->{servicename}, $$);
}
1;
#############################################################
#
# History:
#
# Version 0.4 (2010-04-12) me
# - do not filter non-printable characters because it's already
# implemented in the log module
#
# Version 0.3 (2009-10-28) me
# - improved some code parts
# - added logging of status
#
# Version 0.2 (2008-08-27) me
# - added logging of process id
#
# Version 0.1 (2008-03-06) me
# - initial version
#
#############################################################
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