Re: RFC: Disable defered bridge hooks by default

[Patrick McHardy <kaber@trash.net>]

bdschuym@pandora.be wrote:
>>----- Oorspronkelijk bericht -----
>>Van: Patrick McHardy [mailto:kaber@trash.net]
>>
>>This is the latest version. Fixed the crash and added a
>>runtime warning to the physdev match and on-the-fly activation
>>when needed, so we don't need the sysctls. Works fine in
>>a few simple tests, if there are no further objections
>>I'll submit this version.
> 
> 
> I'd add something like the code below on top of your patch. That way no false warnings are given if the user specifies she only wants to look at bridged packets.
> 
> --- net/netfilter/xt_physdev.c.old	2006-07-07 12:11:44.000000000 +0200
> +++ net/netfilter/xt_physdev.c	2006-07-07 12:14:14.000000000 +0200
> @@ -114,7 +114,9 @@ checkentry(const char *tablename,
>  	    info->bitmask & ~XT_PHYSDEV_OP_MASK)
>  		return 0;
>  	if (brnf_deferred_hooks == 0 && info->bitmask & XT_PHYSDEV_OP_OUT &&
> -	    hook_mask & ((1 << NF_IP_LOCAL_OUT) | (1 << NF_IP_FORWARD))) {
> +	    hook_mask & ((1 << NF_IP_LOCAL_OUT) | (1 << NF_IP_FORWARD)) &&
> +	    (!(info->bitmask & XT_PHYSDEV_OP_BRIDGED) ||
> +	       info->invert & XT_PHYSDEV_OP_BRIDGED)) {
>  		printk(KERN_WARNING "physdev match: using --physdev-out in the "
>  		       "OUTPUT or FORWARD chain is deprecated and breaks other "
>  		       "things, it will be removed in January 2007. See "

Right, I forgot about that, will add and also update the text.