netfilter: ipset: send nonzero skbinfo extensions only
Do not send zero valued skbinfo extensions to userspace at listing. Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
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@ -335,13 +335,17 @@ ip_set_get_skbinfo(struct ip_set_skbinfo *skbinfo,
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static inline bool
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ip_set_put_skbinfo(struct sk_buff *skb, struct ip_set_skbinfo *skbinfo)
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{
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return nla_put_net64(skb, IPSET_ATTR_SKBMARK,
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/* Send nonzero parameters only */
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return ((skbinfo->skbmark || skbinfo->skbmarkmask) &&
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nla_put_net64(skb, IPSET_ATTR_SKBMARK,
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cpu_to_be64((u64)skbinfo->skbmark << 32 |
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skbinfo->skbmarkmask)) ||
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skbinfo->skbmarkmask))) ||
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(skbinfo->skbprio &&
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nla_put_net32(skb, IPSET_ATTR_SKBPRIO,
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cpu_to_be32(skbinfo->skbprio)) ||
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cpu_to_be32(skbinfo->skbprio))) ||
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(skbinfo->skbqueue &&
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nla_put_net16(skb, IPSET_ATTR_SKBQUEUE,
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cpu_to_be16(skbinfo->skbqueue));
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cpu_to_be16(skbinfo->skbqueue)));
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}
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