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Commit 314ddca3 authored by Florian Westphal's avatar Florian Westphal
Browse files

netfilter: ebt_limit: add CONFIG_COMPAT support 



ebt_limit structure is larger on 64 bit systems due
to "long" type used in the (kernel-only) data section.

Setting .compatsize is enough in this case, these values
have no meaning in userspace.

Signed-off-by: default avatarFlorian Westphal <fwestphal@astaro.com>
parent 90b89af7

net/bridge/netfilter/ebt_limit.c

+16 −0
Original line number Diff line number Diff line
@@ -84,6 +84,19 @@ static bool ebt_limit_mt_check(const struct xt_mtchk_param *par) 
	return true;

}





#ifdef CONFIG_COMPAT

/*

 * no conversion function needed --

 * only avg/burst have meaningful values in userspace.

 */

struct ebt_compat_limit_info {

	compat_uint_t avg, burst;

	compat_ulong_t prev;

	compat_uint_t credit, credit_cap, cost;

};

#endif



static struct xt_match ebt_limit_mt_reg __read_mostly = {

	.name		= "limit",

	.revision	= 0,
@@ -91,6 +104,9 @@ static struct xt_match ebt_limit_mt_reg __read_mostly = { 
	.match		= ebt_limit_mt,

	.checkentry	= ebt_limit_mt_check,

	.matchsize	= sizeof(struct ebt_limit_info),

#ifdef CONFIG_COMPAT

	.compatsize	= sizeof(struct ebt_compat_limit_info),

#endif

	.me		= THIS_MODULE,

};