[Babel-users] babels bug with uninitialized data somewhere?

[Dave Taht]

lacking tools and clue I put up captures from the ethernet and wifi
interfaces that took place during a rejecting martian route episode.

the two captures are at: http://snapon.lab.bufferbloat.net/~cero2/babcap/


On Thu, Jun 26, 2014 at 3:03 PM, Dave Taht <dave.taht at gmail.com> wrote:
> On Thu, Jun 26, 2014 at 2:43 PM, Matthieu Boutier
> <boutier at pps.univ-paris-diderot.fr> wrote:
>>> Rejecting martian route to ::/0 from ::/128 through
>>> a221:b7ff:feac:e456:80:9601::.
>>
>> This log message comes from update_route, which is call when an update is received.  The martian route is the source address (::/128).
>>
>> Are you sure the problem is not in one of your config file, probably with a rule like
>>
>>     redistribute ... src-prefix ::/128
>>
>> or
>>
>>     in ... src-prefix ::/128
>>
>> If it's in the latter case, it is more interesting, since probably you would have to write:
>>
>>     in src-eq 128 allow
>>
>> which allow all (ipv6) routes with a prefix length of 128.
>
> There is no conf file.
>
> ./babeld -z3 eth0 wlan0 eth6
>
>>
>>> picking up unitialized data somewhere?
>>
>> Uninitialized at exactly 128 seems strange.
>
> Yes, but the constant change in the last few bits strongly implies something
> is getting corrupted somewhere.
>
> This network has 128 routes installed, and probably 5x that many feasible.
>
>> Since it's after when receiving packets, you should be able to see routes with ::/128 source prefix on tcpdump. (?)
>>
>>     http://git.wifi.pps.univ-paris-diderot.fr/?p=tcpdump-babels.git;a=summary
>
> OK, will look harder and get a dump. Various guesses at the right git
> clone url for the above failed, though... git clone... what?
>
> d at ida:~/git$ git clone
> http://git.wifi.pps.univ-paris-diderot.fr/projects/tcpdump-babels.git
> Cloning into 'tcpdump-babels'...
> fatal: repository
> 'http://git.wifi.pps.univ-paris-diderot.fr/projects/tcpdump-babels.git/'
> not found
> d at ida:~/git$ git clone
> http://git.wifi.pps.univ-paris-diderot.fr/tcpdump-babels.git
> Cloning into 'tcpdump-babels'...
> fatal: repository
> 'http://git.wifi.pps.univ-paris-diderot.fr/tcpdump-babels.git/' not
> found
> d at ida:~/git$ git clone http://git.wifi.pps.univ-paris-diderot.fr/tcpdump-babels
> Cloning into 'tcpdump-babels'...
> fatal: repository
> 'http://git.wifi.pps.univ-paris-diderot.fr/tcpdump-babels/' not found
> d at ida:~/git$ git clone
> http://git.wifi.pps.univ-paris-diderot.fr/projects/tcpdump-babels.git
> Cloning into 'tcpdump-babels'...
> fatal: repository
> 'http://git.wifi.pps.univ-paris-diderot.fr/projects/tcpdump-babels.git/'
> not found
>
>
>> Matthieu
>>
>
>
>
> --
> Dave Täht
>
> NSFW: https://w2.eff.org/Censorship/Internet_censorship_bills/russell_0296_indecent.article



-- 
Dave Täht

NSFW: https://w2.eff.org/Censorship/Internet_censorship_bills/russell_0296_indecent.article