netdev - bridge interface initial carrier state

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-next>] [day] [month] [year] [list]

Message-ID: <1360612915.8633.6.camel@dcbw.foobar.com>
Date:	Mon, 11 Feb 2013 14:01:55 -0600
From:	Dan Williams <dcbw@...hat.com>
To:	netdev@...r.kernel.org
Subject: bridge interface initial carrier state

Hi,

I'm wondering if the initial carrier state of 'on' is intentional for a
bridge without ports; immediately after adding ports, the carrier is
recalculated and depends on the combined state of each port's carrier
and STP forwarding state.  So a userspace program attempting to decide
whether the bridge was usable or not has to look at both (a) how many
ports are available and (b) bridge carrier state, instead of just
looking at the bridge carrier state.

Dan

--
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