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@ -57,11 +57,17 @@ sub send_rcv {
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print("local port $lport sending to $sendtoip:$sendtoport... ");
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my $pkt = join('',map(rand,1..10));
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send($sendfd, $pkt, 0, sockaddr_in($sendtoport, inet_aton($sendtoip))) or die;
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my $inc;
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alarm(5);
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my $addr = recv($recvfd, $inc, length($pkt), 0);
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alarm(0);
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$inc eq $pkt or die;
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my ($inc, $addr);
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{
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local $SIG{ALRM} = sub {
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print("timeout!\n");
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return;
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};
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alarm(1);
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$addr = recv($recvfd, $inc, length($pkt), 0);
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alarm(0);
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}
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$inc eq $pkt or print("did NOT receive packet\n"), return;
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my ($port, $ip) = sockaddr_in($addr);
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$laddr = getsockname($recvfd);
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($lport, $lip) = sockaddr_in($laddr);
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@ -144,182 +150,221 @@ brk();
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my @forward = ('A', 'B', $lp1, $lp2, $client1, $client2, $fromtag, $totag);
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my @backward = ('B', 'A', $lp2, $lp1, $client2, $client1, $totag, $fromtag);
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my ($src, $dst, $p1, $p2, $c1, $c2, $ft, $tt);
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for my $case (0 .. 3) {
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my $sub;
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if ($case == 0) {
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$sub = sub { ; };
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}
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elsif ($case == 1) {
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$sub = sub {
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print("\tchanging ports on client 1\n");
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($client1, $lp1) = udp_sock();
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};
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}
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elsif ($case == 2) {
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$sub = sub {
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print("\tchanging ports on client 2\n");
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($client2, $lp2) = udp_sock();
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};
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}
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elsif ($case == 3) {
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$sub = sub {
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print("\tchanging ports on client 1 and 2\n");
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($client1, $lp1) = udp_sock();
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($client2, $lp2) = udp_sock();
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};
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}
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for my $tuple (\@forward, \@backward) {
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($src, $dst, $p1, $p2, $c1, $c2, $ft, $tt) = @$tuple;
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print("\n\n\n");
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print("re-invite coming from $src with no intermediate traffic\n");
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print("$src tells $dst: send RTP to $p1\n");
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brk();
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my ($mpip1, $mpport1) = sim_rq($callid, $local_ip, $p1, $ft);
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print("mediaproxy: tell $dst to send to $mpport1 instead of $p1\n");
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brk();
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my @forward = ('A', 'B', \$lp1, \$lp2, \$client1, \$client2, $fromtag, $totag);
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my @backward = ('B', 'A', \$lp2, \$lp1, \$client2, \$client1, $totag, $fromtag);
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my ($src, $dst, $p1, $p2, $c1, $c2, $ft, $tt);
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print("$dst tells $src: send RTP to $p2\n");
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brk();
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my ($mpip2, $mpport2) = sim_lk($callid, $local_ip, $p2, $ft, $tt);
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print("mediaproxy: tell $src to send to $mpport2 instead of $p2\n");
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brk();
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send_rcv4($c2, $mpip1, $mpport1, $c1, $mpip2, $mpport2);
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brk();
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}
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for my $tuple (\@forward, \@backward) {
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($src, $dst, $p1, $p2, $c1, $c2, $ft, $tt) = @$tuple;
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$sub->();
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print("\n\n\n");
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print("re-invite coming from $src with no intermediate traffic\n");
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print("$src tells $dst: send RTP to $$p1\n");
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brk();
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my ($mpip1, $mpport1) = sim_rq($callid, $local_ip, $$p1, $ft);
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print("mediaproxy: tell $dst to send to $mpport1 instead of $$p1\n");
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brk();
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print("$dst tells $src: send RTP to $$p2\n");
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brk();
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my ($mpip2, $mpport2) = sim_lk($callid, $local_ip, $$p2, $ft, $tt);
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print("mediaproxy: tell $src to send to $mpport2 instead of $$p2\n");
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brk();
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send_rcv4($$c2, $mpip1, $mpport1, $$c1, $mpip2, $mpport2);
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brk();
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}
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for my $tuple (\@forward, \@backward) {
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($src, $dst, $p1, $p2, $c1, $c2, $ft, $tt) = @$tuple;
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print("\n\n\n");
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print("re-invite coming from $src with intermediate traffic from $dst to the new port only\n");
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print("$src tells $dst: send RTP to $p1\n");
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brk();
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my ($mpip1, $mpport1) = sim_rq($callid, $local_ip, $p1, $ft);
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print("mediaproxy: tell $dst to send to $mpport1 instead of $p1\n");
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brk();
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for (1 .. 4) {
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send_rcv_brk($c2, $mpip1, $mpport1, $c1);
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}
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print("$dst tells $src: send RTP to $p2\n");
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brk();
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my ($mpip2, $mpport2) = sim_lk($callid, $local_ip, $p2, $ft, $tt);
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print("mediaproxy: tell $src to send to $mpport2 instead of $p2\n");
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brk();
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send_rcv4($c2, $mpip1, $mpport1, $c1, $mpip2, $mpport2);
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brk();
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for my $tuple (\@forward, \@backward) {
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($src, $dst, $p1, $p2, $c1, $c2, $ft, $tt) = @$tuple;
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$sub->();
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print("\n\n\n");
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print("re-invite coming from $src with intermediate traffic from $dst to the new port only\n");
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print("$src tells $dst: send RTP to $$p1\n");
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brk();
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my ($mpip1, $mpport1) = sim_rq($callid, $local_ip, $$p1, $ft);
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print("mediaproxy: tell $dst to send to $mpport1 instead of $$p1\n");
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brk();
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for (1 .. 4) {
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send_rcv_brk($$c2, $mpip1, $mpport1, $$c1);
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}
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print("\n\n\n");
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print("re-invite coming from $src with intermediate traffic from both sides to both old and new ports\n");
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print("$dst tells $src: send RTP to $$p2\n");
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brk();
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print("$src tells $dst: send RTP to $p1\n");
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brk();
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my ($mpip2, $mpport2) = sim_lk($callid, $local_ip, $$p2, $ft, $tt);
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print("mediaproxy: tell $src to send to $mpport2 instead of $$p2\n");
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brk();
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my ($mpip3, $mpport3) = sim_rq($callid, $local_ip, $p1, $ft);
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print("mediaproxy: tell $dst to send to $mpport3 instead of $p1\n");
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brk();
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send_rcv4($$c2, $mpip1, $mpport1, $$c1, $mpip2, $mpport2);
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send_rcv4($c2, $mpip1, $mpport1, $c1, $mpip2, $mpport2);
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print("switching to new port...\n");
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send_rcv4($c2, $mpip3, $mpport3, $c1, $mpip2, $mpport2);
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brk();
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print("$dst tells $src: send RTP to $p2\n");
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brk();
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my ($mpip4, $mpport4) = sim_lk($callid, $local_ip, $p2, $ft, $tt);
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print("mediaproxy: tell $src to send to $mpport4 instead of $p2\n");
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brk();
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send_rcv4($c2, $mpip3, $mpport3, $c1, $mpip2, $mpport2);
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print("switching to new port...\n");
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send_rcv4($c2, $mpip3, $mpport3, $c1, $mpip4, $mpport4);
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brk();
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$sub->();
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print("\n\n\n");
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print("re-invite coming from $src with intermediate traffic from both sides to both old and new ports\n");
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print("$src tells $dst: send RTP to $$p1\n");
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brk();
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my ($mpip3, $mpport3) = sim_rq($callid, $local_ip, $$p1, $ft);
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print("mediaproxy: tell $dst to send to $mpport3 instead of $$p1\n");
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brk();
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send_rcv4($$c2, $mpip1, $mpport1, $$c1, $mpip2, $mpport2);
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print("switching to new port...\n");
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send_rcv4($$c2, $mpip3, $mpport3, $$c1, $mpip2, $mpport2);
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print("\n\n\n");
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print("re-invite coming from $src with intermediate traffic from $dst only to both old and new ports\n");
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print("$dst tells $src: send RTP to $$p2\n");
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brk();
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print("$src tells $dst: send RTP to $p1\n");
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brk();
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my ($mpip4, $mpport4) = sim_lk($callid, $local_ip, $$p2, $ft, $tt);
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print("mediaproxy: tell $src to send to $mpport4 instead of $$p2\n");
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brk();
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my ($mpip5, $mpport5) = sim_rq($callid, $local_ip, $p1, $ft);
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print("mediaproxy: tell $dst to send to $mpport5 instead of $p1\n");
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brk();
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send_rcv4($$c2, $mpip3, $mpport3, $$c1, $mpip2, $mpport2);
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print("switching to new port...\n");
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send_rcv4($$c2, $mpip3, $mpport3, $$c1, $mpip4, $mpport4);
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for (1 .. 4) {
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send_rcv_brk($c2, $mpip3, $mpport3, $c1);
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}
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print("switching to new port...\n");
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for (1 .. 4) {
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send_rcv_brk($c2, $mpip5, $mpport5, $c1);
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}
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brk();
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print("$dst tells $src: send RTP to $p2\n");
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brk();
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my ($mpip6, $mpport6) = sim_lk($callid, $local_ip, $p2, $ft, $tt);
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print("mediaproxy: tell $src to send to $mpport6 instead of $p2\n");
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brk();
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for (1 .. 4) {
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send_rcv_brk($c2, $mpip5, $mpport5, $c1);
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}
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send_rcv4($c2, $mpip5, $mpport5, $c1, $mpip6, $mpport6);
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brk();
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$sub->();
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print("\n\n\n");
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print("re-invite coming from $src with intermediate traffic from $dst only to both old and new ports\n");
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print("$src tells $dst: send RTP to $$p1\n");
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brk();
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my ($mpip5, $mpport5) = sim_rq($callid, $local_ip, $$p1, $ft);
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print("mediaproxy: tell $dst to send to $mpport5 instead of $$p1\n");
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brk();
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for (1 .. 4) {
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send_rcv_brk($$c2, $mpip3, $mpport3, $$c1);
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}
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print("switching to new port...\n");
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for (1 .. 4) {
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send_rcv_brk($$c2, $mpip5, $mpport5, $$c1);
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}
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print("$dst tells $src: send RTP to $$p2\n");
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brk();
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print("\n\n\n");
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print("re-invite coming from $src with intermediate traffic from $src only to both old and new ports\n");
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my ($mpip6, $mpport6) = sim_lk($callid, $local_ip, $$p2, $ft, $tt);
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print("mediaproxy: tell $src to send to $mpport6 instead of $$p2\n");
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brk();
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print("$src tells $dst: send RTP to $p1\n");
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brk();
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for (1 .. 4) {
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send_rcv_brk($$c2, $mpip5, $mpport5, $$c1);
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}
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my ($mpip7, $mpport7) = sim_rq($callid, $local_ip, $p1, $ft);
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print("mediaproxy: tell $dst to send to $mpport7 instead of $p1\n");
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brk();
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send_rcv4($$c2, $mpip5, $mpport5, $$c1, $mpip6, $mpport6);
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for (1 .. 4) {
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send_rcv_brk($c1, $mpip6, $mpport6, $c2);
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}
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brk();
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print("$dst tells $src: send RTP to $p2\n");
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brk();
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my ($mpip8, $mpport8) = sim_lk($callid, $local_ip, $p2, $ft, $tt);
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print("mediaproxy: tell $src to send to $mpport8 instead of $p2\n");
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brk();
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for (1 .. 4) {
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send_rcv_brk($c1, $mpip6, $mpport6, $c2);
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}
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print("switching to new port...\n");
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for (1 .. 4) {
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send_rcv_brk($c1, $mpip8, $mpport8, $c2);
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}
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send_rcv4($c2, $mpip7, $mpport7, $c1, $mpip8, $mpport8);
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brk();
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$sub->();
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print("\n\n\n");
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print("re-invite coming from $src with intermediate traffic from $src only to both old and new ports\n");
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print("$src tells $dst: send RTP to $$p1\n");
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brk();
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my ($mpip7, $mpport7) = sim_rq($callid, $local_ip, $$p1, $ft);
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print("mediaproxy: tell $dst to send to $mpport7 instead of $$p1\n");
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|
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|
|
brk();
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|
|
for (1 .. 4) {
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|
send_rcv_brk($$c1, $mpip6, $mpport6, $$c2);
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}
|
|
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|
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|
|
print("$dst tells $src: send RTP to $$p2\n");
|
|
|
|
|
brk();
|
|
|
|
|
|
|
|
|
|
my ($mpip8, $mpport8) = sim_lk($callid, $local_ip, $$p2, $ft, $tt);
|
|
|
|
|
print("mediaproxy: tell $src to send to $mpport8 instead of $$p2\n");
|
|
|
|
|
brk();
|
|
|
|
|
|
|
|
|
|
for (1 .. 4) {
|
|
|
|
|
send_rcv_brk($$c1, $mpip6, $mpport6, $$c2);
|
|
|
|
|
}
|
|
|
|
|
print("switching to new port...\n");
|
|
|
|
|
for (1 .. 4) {
|
|
|
|
|
send_rcv_brk($$c1, $mpip8, $mpport8, $$c2);
|
|
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|
|
}
|
|
|
|
|
|
|
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|
|
send_rcv4($$c2, $mpip7, $mpport7, $$c1, $mpip8, $mpport8);
|
|
|
|
|
|
|
|
|
|
brk();
|
|
|
|
|
}
|
|
|
|
|
}
|
|
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