Date: Sun, 3 Sep 2000 11:46:25 -0700 (PDT) From: huntting@glarp.com To: freebsd-gnats-submit@FreeBSD.org Subject: kern/21016: IPV6_JOIN_GROUP doesnt work for mapped IPv4 multicast addresses Message-ID: <20000903184625.9B58E37B43C@hub.freebsd.org>
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>Number: 21016 >Category: kern >Synopsis: IPV6_JOIN_GROUP doesnt work for mapped IPv4 multicast addresses >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sun Sep 03 11:50:00 PDT 2000 >Closed-Date: >Last-Modified: >Originator: Brad Huntting >Release: 4.1 >Organization: Qwest Comm >Environment: FreeBSD hunkular.glarp.com 4.1-RELEASE FreeBSD 4.1-RELEASE #0: Sat Aug 26 16:48:20 MDT 2000 root@hunkular.glarp.com:/usr/src/sys/compile/HUNKULAR i386 >Description: When passed a v4 mapped multicast address (e.g. ::ffff:239.255.24.23), setsockopt(IPV6_JOIN_GROUP) returns EINVAL. Part of the problem stems from the fact that the IN6_IS_ADDR_MULTICAST() macro in <netinet6/in6.h> does not recognise V4 mapped addresses. Should it? And should setsockopt(IPV6_JOIN_GROUP) work on v4 mapped addresses? If you aggree that it should, let me know and I will patch the include file and the kernel accordingly. thanx, brad >How-To-Repeat: Try to use setsockopt(IPV6_JOIN_GROUP) on a v4 mapped multicast address. >Fix: I just want to make sure that this is a bug and not a feature before I go and "fix" it. Please let me know ASAP as I have a deadline to meet. >Release-Note: >Audit-Trail: >Unformatted: To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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