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 #ifdef __cplusplus 44 extern "C" { 45 #endif 46 47 #if LWIP_MDNS_RESPONDER 48 49 /* Domain struct and methods - visible for unit tests */ 50 51 #define MDNS_DOMAIN_MAXLEN 256 52 #define MDNS_READNAME_ERROR 0xFFFF 53 54 struct mdns_domain { 55 /* Encoded domain name */ 56 u8_t name[MDNS_DOMAIN_MAXLEN]; 57 /* Total length of domain name, including zero */ 58 u16_t length; 59 /* Set if compression of this domain is not allowed */ 60 u8_t skip_compression; 61 }; 62 63 err_t mdns_domain_add_label(struct mdns_domain *domain, const char *label, u8_t len); 64 u16_t mdns_readname(struct pbuf *p, u16_t offset, struct mdns_domain *domain); 65 int mdns_domain_eq(struct mdns_domain *a, struct mdns_domain *b); 66 u16_t mdns_compress_domain(struct pbuf *pbuf, u16_t *offset, struct mdns_domain *domain); 67 68 #endif /* LWIP_MDNS_RESPONDER */ 69 70 #ifdef __cplusplus 71 } 72 #endif 73 74 #endif /* LWIP_HDR_MDNS_PRIV_H */ 75