On Wed, 9 Jul 2003, Brooks Davis wrote:
> On Wed, Jul 09, 2003 at 03:23:52PM -0400, [EMAIL PROTECTED] wrote: > > Hi guys, > > > > My first attempts at hacking FreeBSD kernel code has not been very fruitful, so > > I'm hoping someone with more experience and knowhow might be able to point out > > the mistakes that I'm making. > > > > Firstly, let me explain what I'm trying to do. I'm currently working on a > > University project that performs some type of transformation (compression, > > security, string replacement, etc) on packets as they pass through the system. > > The current setup has the FreeBSD machine configured as a router, and the > > transformation is performed on packets that are routed. This is done via divert > > sockets and everything is fine and dandy, we're getting great results from this > > setup. > > > > However, what we want to do next is to have the machine setup as a ethernet > > bridge instead, and the transformation is to be performed on the bridged > > packets. Unfortunately, as most of you probably know, divert sockets do not > > work with bridges as of yet. > > Since you are paying the price of pulling all packets into userland > anyway, I'd suggest you just do the bridging in userland. You can use > bpf to send and recieve packets on each interface and then bridge and > process them in your application. I did this a while back and the whole > thing took about 1400 lines of code. Unfortunalty, I can't release the > code, but it only took a few hours to write and debug the bridging part. how come no-one knows about netgraph.. the framework designed to do exactly this? :-) It's only been in use for 6 years.. _______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "[EMAIL PROTECTED]"
