2 * Copyright (C) 2014 John Crispin <blogic@openwrt.org>
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
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.
19 #define FLAG_RESPONSE 0x8000
20 #define FLAG_AUTHORATIVE 0x0400
23 #define TYPE_PTR 0x000C
24 #define TYPE_TXT 0x0010
25 #define TYPE_AAAA 0x001c
26 #define TYPE_SRV 0x0021
27 #define TYPE_ANY 0x00ff
29 #define IS_COMPRESSED(x) ((x & 0xc0) == 0xc0)
31 #define MCAST_ADDR "224.0.0.251"
32 #define MCAST_PORT 5353
34 #define CLASS_FLUSH 0x8000
35 #define CLASS_IN 0x0001
37 #define MAX_NAME_LEN 8096
38 #define MAX_DATA_LEN 8096
40 #define C_DNS_SD "_services._dns-sd._udp.local"
55 } __attribute__((packed
, aligned(2)));
62 } __attribute__((packed
, aligned(2)));
67 } __attribute__((packed
, aligned(2)));
71 extern char rdata_buffer
[MAX_DATA_LEN
+ 1];
73 void dns_send_question(struct interface
*iface
, const char *question
, int type
);
74 void dns_init_answer(void);
75 void dns_add_answer(int type
, const uint8_t *rdata
, uint16_t rdlength
);
76 void dns_send_answer(struct interface
*iface
, const char *answer
);
77 const char* dns_type_string(uint16_t type
);
78 void dns_handle_packet(struct interface
*iface
, uint8_t *buf
, int len
);