linux-kernel - tcp/ip stack question

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 7 Jun 2007 05:50:06 -0700
From:	"kernel coder" <lhrkernelcoder@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: tcp/ip stack question

hi,
       I am recieveing the packet on eth1 and want to send it through eth2.

I've written code in netif_recieve_skb function .This code changes the
mac header in sk_buff structure so that it can be send through other
interface card.But when i call ip_dev_find fucntion to get the second
interface structure ,NULL is returned.I checked the ip of second
ethernet card  and it was similar to one passed to ip_dev_find
fucntion,then why NULL is being returned?

Actually if i get the correct dev structure from ip_dev_find fucntion
then i'll assign that dev structure to current skbuff->dev  and call
dev_queue_xmit fucntion,so that it transmitted through second
interface card.Is mine approach correct?

shahzad
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/