Re: [iptables PATCH v2 08/24] nft: Fetch only chains in nft_chain_list_get()

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On Wed, Sep 25, 2019 at 11:25:49PM +0200, Phil Sutter wrote:
> @@ -2238,6 +2259,8 @@ nft_rule_find(struct nft_handle *h, struct nftnl_chain *c, void *data, int rulen
>  	struct nftnl_rule_iter *iter;
>  	bool found = false;
>  
> +	fetch_rule_cache(h, c);

fetch_rule_cache() does not perform any cache consistency check. This
function is good to be called from nft_build_cache() path. However, if
you call it away from it, you have to be sure the cache you are ending
up with is consistency. There are several netlink dump operations in a
row in fetch_rule_cache(), this is likely to happen I'm afraid.



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