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DL6ER
45 lines
1.4 KiB
C
45 lines
1.4 KiB
C
/* Pi-hole: A black hole for Internet advertisements
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* (c) 2021 Pi-hole, LLC (https://pi-hole.net)
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* Network-wide ad blocking via your own hardware.
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*
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* FTL Engine
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* FTL cache_info prototypes
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*
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* This file is copyright under the latest version of the EUPL.
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* Please see LICENSE file for your rights under this license. */
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#ifndef CACHE_INFO_H
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#define CACHE_INFO_H
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struct cache_info {
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// <cache-size> is obvious
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int cache_size;
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// It means the resolver handled <cache-inserted> names lookups that
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// needed to be sent to upstream servers and that <cache-live-freed>
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// was thrown out of the cache before reaching the end of its
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// time-to-live, to make room for a newer name.
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// For <cache-live-freed>, smaller is better. New queries are always
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// cached. If the cache is full with entries which haven't reached
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// the end of their time-to-live, then the entry which hasn't been
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// looked up for the longest time is evicted.
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int cache_live_freed;
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int cache_inserted;
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// <valid> are cache entries with positive remaining TTL
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struct valid {
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int ipv4;
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int ipv6;
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int cname;
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int srv;
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int ds;
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int dnskey;
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int other;
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} valid;
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// <expired> cache entries (to be removed when space is needed)
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int expired;
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// <immortal> cache records never expire (e.g. from /etc/hosts)
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int immortal;
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};
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void get_dnsmasq_cache_info(struct cache_info *ci);
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#endif // CACHE_INFO_H
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