1/**
2 * @file
3 * MDNS responder private definitions
4 */
5
6 /*
7 * Copyright (c) 2015 Verisure Innovation AB
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without modification,
11 * are permitted provided that the following conditions are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright notice,
14 *    this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright notice,
16 *    this list of conditions and the following disclaimer in the documentation
17 *    and/or other materials provided with the distribution.
18 * 3. The name of the author may not be used to endorse or promote products
19 *    derived from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
22 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
23 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
24 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
25 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
26 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
29 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
30 * OF SUCH DAMAGE.
31 *
32 * This file is part of the lwIP TCP/IP stack.
33 *
34 * Author: Erik Ekman <erik@kryo.se>
35 *
36 */
37#ifndef LWIP_HDR_MDNS_PRIV_H
38#define LWIP_HDR_MDNS_PRIV_H
39
40#include "lwip/apps/mdns_opts.h"
41#include "lwip/pbuf.h"
42
43#if LWIP_MDNS_RESPONDER
44
45/* Domain struct and methods - visible for unit tests */
46
47#define MDNS_DOMAIN_MAXLEN 256
48#define MDNS_READNAME_ERROR 0xFFFF
49
50struct mdns_domain {
51  /* Encoded domain name */
52  u8_t name[MDNS_DOMAIN_MAXLEN];
53  /* Total length of domain name, including zero */
54  u16_t length;
55  /* Set if compression of this domain is not allowed */
56  u8_t skip_compression;
57};
58
59err_t mdns_domain_add_label(struct mdns_domain *domain, const char *label, u8_t len);
60u16_t mdns_readname(struct pbuf *p, u16_t offset, struct mdns_domain *domain);
61int mdns_domain_eq(struct mdns_domain *a, struct mdns_domain *b);
62u16_t mdns_compress_domain(struct pbuf *pbuf, u16_t *offset, struct mdns_domain *domain);
63
64#endif /* LWIP_MDNS_RESPONDER */
65
66#endif /* LWIP_HDR_MDNS_PRIV_H */
67