[Colin@arena.co.nz: [Snort-devel] snort 1.7 and OpenBSD 2.6]

[Fyodor <fygrave_(_at_)_tigerteam_(_dot_)_net>]

Hello folks,

Just curious if there's a way to obtain an MTU value on OpenBSD prior 2.7 dynamically or
a static table lookup should be used instead. I checked out source tagged with OPENBSD_2_6, looks
like it is the only way. 


Any comments would be appreciated mucho :)

-Fyodor

----- Forwarded message from Colin Haxton <Colin_(_at_)_arena_(_dot_)_co_(_dot_)_nz> -----

From: Colin Haxton <Colin_(_at_)_arena_(_dot_)_co_(_dot_)_nz>
Date: Mon, 08 Jan 2001 13:37:36 +1300
To: Snort-dev <snort-devel_(_at_)_lists_(_dot_)_sourceforge_(_dot_)_net>
Subject: [Snort-devel] snort 1.7 and OpenBSD 2.6
X-Mailer: Mozilla 4.75 [en] (WinNT; U)

Hi all,

Snort seems to have a problem running on OpenBSD 2.6 where it won't
start due to not being able to work out the MTU value of the interface.

The OpenBSD site says that the SIOCGIFMTU/SIOCSIFMTU ioctl options were
not added until 2.7.  This makes the GetIfrMTU() function in snort.c not
to return a value so everything stops.

I got around the problem by returning the default Ethernet value
(ETHERNET_MTU). While this works for me there is probably a better fix
so I will leave it up to the cross-platform guru's out there.  :-)

I know that endless backwards compatibility is not feasible but as OBSD
2.6 is still _fairly_ recent I thought I would bring it up on the list
in case anyone else hits it.

Cheers,

Colin

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