BIRD 2.0.2 segfaulting

[Ondrej Zajicek]

On Mon, Nov 05, 2018 at 08:47:36AM +0700, Clemens Schrimpe wrote:
> Hello -
> 
> just wanted to report a little (easily reproducable) problem: I’m experimenting with BIRD 2.0.2 on a lab-router (Ubiquiti Edgerouter, MIPS platform) and RPKI. 
> 
> In my attempts to examine ROA tables more closely I entered „show route table r4 all“ into birdc and bird immediately segfaulted and died.

Hello

Does it crash without 'all'? Works for me:

bird> show route table rtab4
Table rtab4:
212.1.128.0/19-19 AS9105  [rpki1 13:28:00.854] * (150)
213.129.152.0/21-21 AS47834  [rpki1 13:28:00.851] * (150)
202.3.160.0/20-24 AS17408  [rpki1 13:28:00.786] * (150)
88.132.72.0/21-21 AS35311  [rpki1 13:28:00.841] * (150)
157.100.182.0/24-24 AS27947  [rpki1 13:28:00.839] * (150)
...

Attached patch should fix the crash.


> Is there any „official“ way to examine the contents of ROA tables other than „eval roa_check(r4, 186.255.72.0/24, 204777)“?

Currently ROA has to be specified as a whole, including maxlen and ASN,
not just its prefix. Confusingly, it uses slightly different syntax
to enter ROAs and to print ROAs:

bird> show route 212.1.128.0/19 max 19 as 9105 table rtab4
Table rtab4:
212.1.128.0/19-19 AS9105  [rpki1 13:28:00.854] * (150)

-- 
Elen sila lumenn' omentielvo

Ondrej 'Santiago' Zajicek (email: santiago at crfreenet.org)
OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net)
"To err is human -- to blame it on a computer is even more so."
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