From mboxrd@z Thu Jan 1 00:00:00 1970 From: syedk Subject: Re: Splitter Date: 23 Mar 2004 17:08:20 +0530 Sender: linux-c-programming-owner@vger.kernel.org Message-ID: <1080041902.7454.54.camel@one.test.com> References: Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Id: Content-Type: text/plain; charset="us-ascii" To: "K.Anantha Kiran" Cc: Jad Saklawi , linux-c-programming@vger.kernel.org you can look into dev_queue_xmit(sk_buff) function in net/core/dev.c sk_buff->dev has the information abt the device (can be any interface registered using register_netdevice() for that matter)... dev_queue_xmit just transfers the sk_buff for the device for delivery.... I feel the best way to solve your problem would be use NF_IP_PRE_ROUTING hook of netfilter by which u get all packets ( even before any routing decisions has been made : that is what u wanted RIGHT??) and then call dev_queue_xmit function by setting the sk_buff->dev as whatever interface u wish to redirect.... I hope this would help.... Best regards syed sk On Tue, 2004-03-23 at 15:09, K.Anantha Kiran wrote: > Hi, > Thanks a lot for ur guidance. > I am following the same files(i mean NET directory).But i am facing > following problem. > " where the output interface variable (rtable->key->oif) is changed to > the index of interface through which packet has to go out. In the function > /net/route.c ip_route_input_slow() they are setting it to 0 what is it > mean. > > When a packet has to be put on to an interface what are the fields > will it use to decide that( in skbuff structure). > > Thanks > regards, > K. Anantha kiran > > > On Mon, 22 Mar 2004, Jad Saklawi wrote: > > > Date: Mon, 22 Mar 2004 09:41:22 +0200 > > From: Jad Saklawi > > To: K.Anantha Kiran > > Cc: linux-c-programming@vger.kernel.org > > Subject: Re: Splitter > > > > K.Anantha Kiran wrote: > > > > >Hi, > > > Thanks for ur suggetsion. > > > But we are not clear about the sentece "re invent the loop". > > > Can u give clear explanantion about the "iptables" solution. > > > IMP: Our machine should not work like a router.I should be able to decide > > >to which interface i want to redirect to , on the fly for each packet > > >using a HASH like functions. > > > > > > > > It`s your choice then, check out net/core/dev.c net/core/dv.c > > net/ipv4/tcp_input.c net/ipv4/tcp_output.c net/ethernet/eth.c You have > > to take a look at the whole net directory and modify accordingly. I > > doubt you will be able to do any thing. Any way good luck!!! > > > > Greets, > > Jad > > > > - > To unsubscribe from this list: send the line "unsubscribe linux-c-programming" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html