netdev - Re: linux kernel's IPV6_MULTICAST_HOPS default is 64; should be 1?

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 4 May 2010 00:48:46 -0700
From:	David Stevens <dlstevens@...ibm.com>
To:	enh <enh@...gle.com>
Cc:	brian.haley@...com, David Miller <davem@...emloft.net>,
	netdev@...r.kernel.org, netdev-owner@...r.kernel.org
Subject: Re: linux kernel's IPV6_MULTICAST_HOPS default is 64; should be 1?

It's set to -1 by default, but the common code for unicast and
multicast in getsockopt is falling through to use the dst_entry.

I believe (though I haven't actually tried it recently) it actually
uses "1" for the default value for multicast; it just doesn't
report it correctly. It should distinguish multicast from unicast
in the <0 check in getsockopt.
                                        +-DLS

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html