netdev - Re: [PATCH net-next] net: ipmr: add support for passing full packet on wrong vif

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 for Android: free password hash cracker in your pocket

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

Date:   Fri, 13 Jul 2018 14:21:27 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     nikolay@...ulusnetworks.com
Cc:     netdev@...r.kernel.org, sharpd@...ulusnetworks.com
Subject: Re: [PATCH net-next] net: ipmr: add support for passing full
 packet on wrong vif

From: Nikolay Aleksandrov <nikolay@...ulusnetworks.com>
Date: Fri, 13 Jul 2018 12:16:43 +0300

> This patch adds support for IGMPMSG_WRVIFWHOLE which is used to pass
> full packet and real vif id when the incoming interface is wrong.
> While the RP and FHR are setting up state we need to be sending the
> registers encapsulated with all the data inside otherwise we lose it.
> The RP then decapsulates it and forwards it to the interested parties.
> Currently with WRONGVIF we can only be sending empty register packets
> and will lose that data.
> This behaviour can be enabled by using MRT_PIM with
> val == IGMPMSG_WRVIFWHOLE. This doesn't prevent IGMPMSG_WRONGVIF from
> happening, it happens in addition to it, also it is controlled by the same
> throttling parameters as WRONGVIF (i.e. 1 packet per 3 seconds currently).
> Both messages are generated to keep backwards compatibily and avoid
> breaking someone who was enabling MRT_PIM with val == 4, since any
> positive val is accepted and treated the same.
> 
> Signed-off-by: Nikolay Aleksandrov <nikolay@...ulusnetworks.com>

Applied.