netdev - RE: [PATCH net] netpoll: fix rx_hook() interface by passing the skb

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: <AE90C24D6B3A694183C094C60CF0A2F6026B739B@saturn3.aculab.com>
Date:	Tue, 22 Oct 2013 10:09:00 +0100
From:	"David Laight" <David.Laight@...LAB.COM>
To:	"Antonio Quartulli" <antonio@...hcoding.com>,
	"David S. Miller" <davem@...emloft.net>
Cc:	<netdev@...r.kernel.org>
Subject: RE: [PATCH net] netpoll: fix rx_hook() interface by passing the skb

> Subject: [PATCH net] netpoll: fix rx_hook() interface by passing the skb
> 
> Right now skb->data is passed to rx_hook() even if the skb
> has not been linearised and without giving rx_hook() a way
> to linearise it.
> 
> Change the rx_hook() interface and make it accept the skb
> as argument. In this way users implementing rx_hook() can
> perform all the needed operations to properly (and safely)
> access the skb data.
...
> -	void (*rx_hook)(struct netpoll *, int, char *, int);
> +	void (*rx_hook)(struct netpoll *np, struct sk_buff *skb, int offset);

You can't do that change without changing the way that hooks are registered
so that any existing modules will fail to register their hooks.

	David



--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html