Date: Thu, 29 Jul 2010 23:56:43 GMT From: Hans-Werner Braun <hwb@ucsd.edu> To: freebsd-gnats-submit@FreeBSD.org Subject: misc/149086: Generic multicast join failure in 8.1 Message-ID: <201007292356.o6TNuhKe081626@www.freebsd.org> Resent-Message-ID: <201007300000.o6U009VG075003@freefall.freebsd.org>
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>Number: 149086 >Category: misc >Synopsis: Generic multicast join failure in 8.1 >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Fri Jul 30 00:00:09 UTC 2010 >Closed-Date: >Last-Modified: >Originator: Hans-Werner Braun >Release: 8.1-RELEASE >Organization: UC San Diego >Environment: FreeBSD mcr.hpwren.ucsd.edu 8.1-RELEASE FreeBSD 8.1-RELEASE #0: Thu Jul 29 09:50:21 PDT 2010 hwb@mcr.hpwren.ucsd.edu:/usr/src/sys/amd64/compile/MCR amd64 >Description: A perl program that I used in previous FreeBSD releases does not work any more. Specifically from tcpdump outputs it does not send the join request to the router. The program: #!/usr/local/bin/perl use Socket; $PORT=$ARGV[0]; $PATTERN=$ARGV[1]; $SERVER=$ARGV[2]; if($PORT eq ""){ printf"Syntax: mcaststream.pl port {pattern} {multicastaddress}\n"; exit; } if($SERVER eq ""){$SERVER="233.7.117.79";} $|=1; $IP_ADD_MEMBERSHIP=12; ($name, $aliases, $type, $len, $SERVERIP) = gethostbyname($SERVER); $sockaddr = 'S n a4 x8'; socket(S, PF_INET,SOCK_DGRAM,UDP_PROTO)||die("$!"); setsockopt(S, SOL_SOCKET, SO_REUSEPORT, 1)||die("$!"); $us = pack($sockaddr, 2, $PORT, pack("C4", 0,0,0,0)); bind(S, $us)||die("$!"); setsockopt(S, 0, $IP_ADD_MEMBERSHIP, $SERVERIP."\0\0\0\0")||die("$!"); while($theiraddr=recv(S,$BUF,1024,0)){ ($junk, $junk, $sourceaddr, $junk) = unpack($sockaddr, $theiraddr); $theirip=join('.',unpack('C4', $sourceaddr)); if($BUF =~ $PATTERN){ printf"$theirip\t$BUF"; } } >How-To-Repeat: The above program sends no traffic out of the Ethernet interface (specifically the join request). >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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