linux-kernel - Re: [PATCH v4 1/5] net: Add support for hardware-offloaded encapsulation

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

Message-ID: <CAMAG_ee6xW4EnzPFt=_5+NL2+LuyUjxd52Xc242inYm2+Yhg7g@mail.gmail.com>
Date:	Mon, 10 Dec 2012 12:04:15 +0200
From:	saeed bishara <saeed.bishara@...il.com>
To:	Joseph Gasparakis <joseph.gasparakis@...el.com>
Cc:	davem@...emloft.net, shemminger@...tta.com, chrisw@...s-sol.org,
	gospo@...hat.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, dmitry@...adcom.com,
	bhutchings@...arflare.com,
	Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@...el.com>,
	Alexander Duyck <alexander.h.duyck@...el.com>
Subject: Re: [PATCH v4 1/5] net: Add support for hardware-offloaded encapsulation

> +static inline struct iphdr *inner_ip_hdr(const struct sk_buff *skb)
> +{
> +       return (struct iphdr *)skb_inner_network_header(skb);
> +}

Hi,
I'm a little bit bothered because of those inner_ functions, what
about the following approach:
1. the skb will have a new state, that state can be outer (normal
mode) and inner.
2. when you change the state to inner, all the helper functions such
as ip_hdr will return the innter header.

that's ofcourse the API side. the implementation may still use the
fields you added to the skb.

what you think?
saeed
--
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/