On 08.05.2013 10:51, Dave Taht wrote:
One thing that bugs me about hacks and workarounds like this is that
Linux (as well as openwrt) are intensely mutable systems, and it's
totally possible to improve linux rather than limp around in userspace.
I have long disliked the ip rule system in its primary use prior to now
(vpns), as buggy, arbitrary, and subject to race conditions, so if a
better api and methods for injecting/managing source address dependent
routing information could be designed I'm pretty sure there would be
much enthusiasm across the vpn, mptcp/sctp, and routing worlds for
getting it into linux itself.
Hmm I must admit I'm wondering about this for the OpenWrt stack as well.
We have switched to RA-Handling in userspace for similar reasons already
so I guess it's only the next logical step to create separate routing
tables for each upstream interface to do source-based routing and filter
out ULA-traffic on this layer instead of through iptables.
Having one central userspace management daemon for routing and address /
prefix delegation in general might not be the best or cleanest solution
in the end but I guess there is no better way right now.
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