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|
#!/usr/bin/perl
#############################################################################
#
# - UAS listens
# - UAC calls UAS
# - UAS accepts call
# - UAC sends some data to UAS
# - after some time UAS re-invites UAC
# - UAC accepts
# - UAS sends some data to UAC
# - after a while UAC hangs up
#
#############################################################################
use strict;
use warnings;
use Test::More tests => 17;
do './testlib.pl' || do './t/testlib.pl' || die "no testlib";
use Net::SIP ':all';
my ($csock,$caddr) = create_socket();
my ($ssock,$saddr) = create_socket();
# start UAS
my $uas = fork_sub( 'uas',$ssock,$caddr,$saddr );
fd_grep_ok( 'Listening',$uas );
# start UAC once UAS is ready
my $uac = fork_sub( 'uac',$csock,$caddr,$saddr );
fd_grep_ok( 'Started',$uac );
fd_grep_ok( 'Call accepted',$uas );
# first RTP from UAC to UAS
fd_grep_ok( 'Start RTP', $uac );
fd_grep_ok( 'RTP#50#', $uac );
fd_grep_ok( 'got rtp packet#50', $uas );
# then re-invite
fd_grep_ok( 'Starting ReInvite', $uas );
fd_grep_ok( 'Got ReInvite', $uac );
# RTP from UAS to UAC
fd_grep_ok( 'Start RTP', $uas );
fd_grep_ok( 'RTP#50#', $uas );
fd_grep_ok( 'got rtp packet#50', $uac );
# BYE from UAC
fd_grep_ok( 'Send BYE',$uac );
fd_grep_ok( 'Got RTP',$uas );
fd_grep_ok( 'Received BYE',$uas );
fd_grep_ok( 'BYE done',$uac );
killall();
#############################################################################
# UAC
#############################################################################
sub uac {
my ($lsock,$laddr,$peer) = @_;
my $ua = Simple->new(
leg => $lsock,
from => "sip:me\@$laddr",
);
print "Started\n";
# call and transfer data until I get reinvite
# then change RTP handling to recv_echo and stop after 50 packets
my ($reinvite,$stop_rtp50);
my $switch_media_on_reinvite = sub {
my ($ok,$call) = @_;
DEBUG( "switch media" );
$call->set_param(
init_media => $call->rtp( 'recv_echo', [ \&_recv_rtp, \( my $i=0 ), \$stop_rtp50 ] ),
);
$reinvite = 1;
};
my $call = $ua->invite( "sip:me\@$peer",
init_media => $ua->rtp( 'send_recv', [ \&_send_rtp, \( my $i = 0) ] ),
cb_established => $switch_media_on_reinvite,
clear_sdp => 1, # don't reuse sockets from last RTP session
) || die;
# wait for reinvite done
$ua->loop( 10,\$reinvite );
$reinvite || die;
print "Got ReInvite\n";
# wait until 50 packets received from the new connection
$ua->loop( 5,\$stop_rtp50 );
# and bye
print "Send BYE\n";
$call->bye( cb_final => \( my $bye_ok ));
$ua->loop( 10,\$bye_ok );
print "BYE done\n" if $bye_ok;
}
#############################################################################
# UAS
#############################################################################
sub uas {
my ($lsock,$laddr,$peer) = @_;
my $ua = Simple->new(
leg => $lsock,
from => "sip:me\@$laddr",
);
# accept call and send some data, set $stop once
# the call was established
my $stop = 0;
my $stop_rtp50 = 0;
my $call;
my $init_media_recv = sub {
(undef,$call) = @_;
DEBUG( "accepted call" );
$call->set_param( init_media =>
$call->rtp( 'recv_echo', [ \&_recv_rtp, \( my $i=0 ), \$stop_rtp50 ],-1 )
);
$stop = 1;
};
$ua->listen( cb_established => $init_media_recv );
print "Listening\n";
$ua->loop( \$stop );
print "Call accepted\n";
# wait until I got 50 packets
$ua->loop( \$stop_rtp50 );
# Reinvite and send data until I get BYE
print "Starting ReInvite\n";
my $bytes = 0;
my $write_bytes = sub { $bytes += length($_[0]) };
my $recv_bye = 0;
my $init_media_send = sub {
my ($ok,$call) = @_;
DEBUG( "init media because re-invite was $ok" );
$stop = 1;
$ok eq 'OK' or die;
$call->set_param(
init_media => $call->rtp(
'send_recv',
[ \&_send_rtp, \( my $i=0 ) ],
1,
$write_bytes
),
recv_bye => \$recv_bye,
);
};
$stop = 0;
$call->reinvite(
clear_sdp => 1,
cb_final => $init_media_send,
);
# wait until INVITE succeeds
$ua->loop( 10,\$stop );
print "ReInvite succeeded\n" if $stop eq 'OK';
print "ReInvite FAILED\n" if $stop eq 'FAIL';
# wait until I got BYE
$ua->loop( 10, \$recv_bye );
print "Got RTP\n" if $bytes;
print "Received BYE\n" if $recv_bye;
# make sure the reply for the BYE makes it on the wire
$ua->loop(1);
}
sub _send_rtp {
my $iref = shift;
$$iref++;
if ( $$iref == 1 ) {
print "Start RTP\n";
} elsif ( $$iref % 50 == 0 ) {
# log after each seconds
print "RTP#$$iref#\n";
}
#DEBUG( "send packet $$iref" );
return "0123456789" x 16;
}
sub _recv_rtp {
my ($iref,$stopvar,$payload) = @_;
$$iref++;
#DEBUG( 50,"got data $$iref" );
if ( $$iref == 50 ) {
print "got rtp packet#50\n";
$$stopvar = 1;
}
}
|
