add -4 and -6 options
[project/mdnsd.git] / cache.h
1 /*
2 * Copyright (C) 2014 John Crispin <blogic@openwrt.org>
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU Lesser General Public License version 2.1
6 * as published by the Free Software Foundation
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 */
13
14 #ifndef _CACHE_H__
15 #define _CACHE_H__
16
17 #include <libubox/avl.h>
18 #include <libubox/list.h>
19 #include <libubox/blob.h>
20
21 #include "dns.h"
22
23 struct cache_entry {
24 struct avl_node avl;
25
26 const char *entry;
27 const char *host;
28 uint32_t ttl;
29 time_t time;
30 };
31
32 struct cache_record {
33 struct avl_node avl;
34
35 const char *record;
36 uint16_t type;
37 uint32_t ttl;
38 int port;
39 const char *txt;
40 const uint8_t *rdata;
41 uint16_t rdlength;
42 time_t time;
43 };
44
45 extern struct avl_tree entries;
46
47 int cache_init(void);
48 void cache_scan(void);
49 void cache_cleanup(void);
50 void cache_answer(struct interface *iface, uint8_t *base, int blen,
51 char *name, struct dns_answer *a, uint8_t *rdata);
52 int cache_host_is_known(char *record);
53 char *cache_lookup_name(const char *key);
54 void cache_dump_records(struct blob_buf *buf, const char *name);
55
56 #endif