netfilter: hashlimit: move rateinfo initialization to helper
followup patch would bloat main match function too much. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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1 changed files with 10 additions and 5 deletions
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@ -407,6 +407,15 @@ static void rateinfo_recalc(struct dsthash_ent *dh, unsigned long now)
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dh->rateinfo.prev = now;
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}
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static void rateinfo_init(struct dsthash_ent *dh,
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struct xt_hashlimit_htable *hinfo)
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{
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dh->rateinfo.prev = jiffies;
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dh->rateinfo.credit = user2credits(hinfo->cfg.avg * hinfo->cfg.burst);
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dh->rateinfo.cost = user2credits(hinfo->cfg.avg);
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dh->rateinfo.credit_cap = dh->rateinfo.credit;
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}
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static inline __be32 maskl(__be32 a, unsigned int l)
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{
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return l ? htonl(ntohl(a) & ~0 << (32 - l)) : 0;
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@ -531,11 +540,7 @@ hashlimit_mt(const struct sk_buff *skb, struct xt_action_param *par)
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goto hotdrop;
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}
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dh->expires = jiffies + msecs_to_jiffies(hinfo->cfg.expire);
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dh->rateinfo.prev = jiffies;
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dh->rateinfo.credit = user2credits(hinfo->cfg.avg *
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hinfo->cfg.burst);
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dh->rateinfo.credit_cap = dh->rateinfo.credit;
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dh->rateinfo.cost = user2credits(hinfo->cfg.avg);
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rateinfo_init(dh, hinfo);
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} else {
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/* update expiration timeout */
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dh->expires = now + msecs_to_jiffies(hinfo->cfg.expire);
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