43 lines
992 B
C
43 lines
992 B
C
#ifndef _SMARTDNS_CACHE_H
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#define _SMARTDNS_CACHE_H
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#include "dns.h"
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#include "hashtable.h"
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#include "hash.h"
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#include "list.h"
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#include "atomic.h"
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struct dns_cache {
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struct hlist_node node;
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struct list_head list;
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atomic_t ref;
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char domain[DNS_MAX_CNAME_LEN];
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unsigned ttl;
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time_t insert_time;
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dns_type_t qtype;
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union {
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unsigned char ipv4_addr[DNS_RR_A_LEN];
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unsigned char ipv6_addr[DNS_RR_AAAA_LEN];
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unsigned char addr[0];
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};
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};
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int dns_cache_init(int size);
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int dns_cache_insert(char *domain, int ttl, dns_type_t qtype, unsigned char *addr, int addr_len);
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struct dns_cache *dns_cache_get(char *domain, dns_type_t qtype);
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void dns_cache_delete(struct dns_cache *dns_cache);
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void dns_cache_release(struct dns_cache *dns_cache);
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void dns_cache_update(struct dns_cache *dns_cache);
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void dns_cache_invalidate(void);
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int dns_cache_get_ttl(struct dns_cache *dns_cache);
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void dns_cache_destroy(void);
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#endif // !_SMARTDNS_CACHE_H
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