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cyclone_tcp/netbios/nbns_common.h@0:8918a71cdbe9, 2017-02-04 (annotated)

Committer:
Sergunb
Date:
Sat Feb 04 18:15:49 2017 +0000
Revision:
0:8918a71cdbe9
nothing else

Who changed what in which revision?

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Sergunb 0:8918a71cdbe9 1 /**
Sergunb 0:8918a71cdbe9 2 * @file nbns_common.h
Sergunb 0:8918a71cdbe9 3 * @brief Functions common to NBNS client and NBNS responder
Sergunb 0:8918a71cdbe9 4 *
Sergunb 0:8918a71cdbe9 5 * @section License
Sergunb 0:8918a71cdbe9 6 *
Sergunb 0:8918a71cdbe9 7 * Copyright (C) 2010-2017 Oryx Embedded SARL. All rights reserved.
Sergunb 0:8918a71cdbe9 8 *
Sergunb 0:8918a71cdbe9 9 * This file is part of CycloneTCP Open.
Sergunb 0:8918a71cdbe9 10 *
Sergunb 0:8918a71cdbe9 11 * This program is free software; you can redistribute it and/or
Sergunb 0:8918a71cdbe9 12 * modify it under the terms of the GNU General Public License
Sergunb 0:8918a71cdbe9 13 * as published by the Free Software Foundation; either version 2
Sergunb 0:8918a71cdbe9 14 * of the License, or (at your option) any later version.
Sergunb 0:8918a71cdbe9 15 *
Sergunb 0:8918a71cdbe9 16 * This program is distributed in the hope that it will be useful,
Sergunb 0:8918a71cdbe9 17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
Sergunb 0:8918a71cdbe9 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
Sergunb 0:8918a71cdbe9 19 * GNU General Public License for more details.
Sergunb 0:8918a71cdbe9 20 *
Sergunb 0:8918a71cdbe9 21 * You should have received a copy of the GNU General Public License
Sergunb 0:8918a71cdbe9 22 * along with this program; if not, write to the Free Software Foundation,
Sergunb 0:8918a71cdbe9 23 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Sergunb 0:8918a71cdbe9 24 *
Sergunb 0:8918a71cdbe9 25 * @author Oryx Embedded SARL (www.oryx-embedded.com)
Sergunb 0:8918a71cdbe9 26 * @version 1.7.6
Sergunb 0:8918a71cdbe9 27 **/
Sergunb 0:8918a71cdbe9 28
Sergunb 0:8918a71cdbe9 29 #ifndef _NBNS_COMMON_H
Sergunb 0:8918a71cdbe9 30 #define _NBNS_COMMON_H
Sergunb 0:8918a71cdbe9 31
Sergunb 0:8918a71cdbe9 32 //Dependencies
Sergunb 0:8918a71cdbe9 33 #include "core/net.h"
Sergunb 0:8918a71cdbe9 34 #include "dns/dns_common.h"
Sergunb 0:8918a71cdbe9 35
Sergunb 0:8918a71cdbe9 36 //Default TTL value for NBNS resource records
Sergunb 0:8918a71cdbe9 37 #ifndef NBNS_DEFAULT_RESOURCE_RECORD_TTL
Sergunb 0:8918a71cdbe9 38 #define NBNS_DEFAULT_RESOURCE_RECORD_TTL 120
Sergunb 0:8918a71cdbe9 39 #elif (NBNS_DEFAULT_RESOURCE_RECORD_TTL < 1)
Sergunb 0:8918a71cdbe9 40 #error NBNS_DEFAULT_RESOURCE_RECORD_TTL parameter is not valid
Sergunb 0:8918a71cdbe9 41 #endif
Sergunb 0:8918a71cdbe9 42
Sergunb 0:8918a71cdbe9 43 //NBNS port number
Sergunb 0:8918a71cdbe9 44 #define NBNS_PORT 137
Sergunb 0:8918a71cdbe9 45
Sergunb 0:8918a71cdbe9 46 //Macro definition
Sergunb 0:8918a71cdbe9 47 #define NBNS_ENCODE_H(c) ('A' + (((c) >> 4) & 0x0F))
Sergunb 0:8918a71cdbe9 48 #define NBNS_ENCODE_L(c) ('A' + ((c) & 0x0F))
Sergunb 0:8918a71cdbe9 49
Sergunb 0:8918a71cdbe9 50
Sergunb 0:8918a71cdbe9 51 /**
Sergunb 0:8918a71cdbe9 52 * @brief NBNS flags
Sergunb 0:8918a71cdbe9 53 **/
Sergunb 0:8918a71cdbe9 54
Sergunb 0:8918a71cdbe9 55 typedef enum
Sergunb 0:8918a71cdbe9 56 {
Sergunb 0:8918a71cdbe9 57 NBNS_ONT_BNODE = 0x0000,
Sergunb 0:8918a71cdbe9 58 NBNS_ONT_PNODE = 0x2000,
Sergunb 0:8918a71cdbe9 59 NBNS_ONT_MNODE = 0x4000,
Sergunb 0:8918a71cdbe9 60 NBNS_G_UNIQUE = 0x0000,
Sergunb 0:8918a71cdbe9 61 NBNS_G_GROUP = 0x8000
Sergunb 0:8918a71cdbe9 62 }DnsFlags;
Sergunb 0:8918a71cdbe9 63
Sergunb 0:8918a71cdbe9 64
Sergunb 0:8918a71cdbe9 65 //CodeWarrior or Win32 compiler?
Sergunb 0:8918a71cdbe9 66 #if defined(__CWCC__) || defined(_WIN32)
Sergunb 0:8918a71cdbe9 67 #pragma pack(push, 1)
Sergunb 0:8918a71cdbe9 68 #endif
Sergunb 0:8918a71cdbe9 69
Sergunb 0:8918a71cdbe9 70
Sergunb 0:8918a71cdbe9 71 /**
Sergunb 0:8918a71cdbe9 72 * @brief NBNS message header
Sergunb 0:8918a71cdbe9 73 **/
Sergunb 0:8918a71cdbe9 74
Sergunb 0:8918a71cdbe9 75 typedef __start_packed struct
Sergunb 0:8918a71cdbe9 76 {
Sergunb 0:8918a71cdbe9 77 uint16_t id; //0-1
Sergunb 0:8918a71cdbe9 78 #ifdef _CPU_BIG_ENDIAN
Sergunb 0:8918a71cdbe9 79 uint16_t qr : 1; //2
Sergunb 0:8918a71cdbe9 80 uint16_t opcode : 4;
Sergunb 0:8918a71cdbe9 81 uint16_t aa : 1;
Sergunb 0:8918a71cdbe9 82 uint16_t tc : 1;
Sergunb 0:8918a71cdbe9 83 uint16_t rd : 1;
Sergunb 0:8918a71cdbe9 84 uint16_t ra : 1; //3
Sergunb 0:8918a71cdbe9 85 uint16_t z : 2;
Sergunb 0:8918a71cdbe9 86 uint16_t b : 1;
Sergunb 0:8918a71cdbe9 87 uint16_t rcode : 4;
Sergunb 0:8918a71cdbe9 88 #else
Sergunb 0:8918a71cdbe9 89 uint16_t rd : 1; //2
Sergunb 0:8918a71cdbe9 90 uint16_t tc : 1;
Sergunb 0:8918a71cdbe9 91 uint16_t aa : 1;
Sergunb 0:8918a71cdbe9 92 uint16_t opcode : 4;
Sergunb 0:8918a71cdbe9 93 uint16_t qr : 1;
Sergunb 0:8918a71cdbe9 94 uint16_t rcode : 4; //3
Sergunb 0:8918a71cdbe9 95 uint16_t b : 1;
Sergunb 0:8918a71cdbe9 96 uint16_t z : 2;
Sergunb 0:8918a71cdbe9 97 uint16_t ra : 1;
Sergunb 0:8918a71cdbe9 98 #endif
Sergunb 0:8918a71cdbe9 99 uint16_t qdcount; //4-5
Sergunb 0:8918a71cdbe9 100 uint16_t ancount; //6-7
Sergunb 0:8918a71cdbe9 101 uint16_t nscount; //8-9
Sergunb 0:8918a71cdbe9 102 uint16_t arcount; //10-11
Sergunb 0:8918a71cdbe9 103 uint8_t questions[]; //12
Sergunb 0:8918a71cdbe9 104 } __end_packed NbnsHeader;
Sergunb 0:8918a71cdbe9 105
Sergunb 0:8918a71cdbe9 106
Sergunb 0:8918a71cdbe9 107 /**
Sergunb 0:8918a71cdbe9 108 * @brief NBNS address entry
Sergunb 0:8918a71cdbe9 109 **/
Sergunb 0:8918a71cdbe9 110
Sergunb 0:8918a71cdbe9 111 typedef __start_packed struct
Sergunb 0:8918a71cdbe9 112 {
Sergunb 0:8918a71cdbe9 113 uint16_t flags;
Sergunb 0:8918a71cdbe9 114 Ipv4Addr addr;
Sergunb 0:8918a71cdbe9 115 } __end_packed NbnsAddrEntry;
Sergunb 0:8918a71cdbe9 116
Sergunb 0:8918a71cdbe9 117
Sergunb 0:8918a71cdbe9 118 //CodeWarrior or Win32 compiler?
Sergunb 0:8918a71cdbe9 119 #if defined(__CWCC__) || defined(_WIN32)
Sergunb 0:8918a71cdbe9 120 #pragma pack(pop)
Sergunb 0:8918a71cdbe9 121 #endif
Sergunb 0:8918a71cdbe9 122
Sergunb 0:8918a71cdbe9 123
Sergunb 0:8918a71cdbe9 124 //NBNS related functions
Sergunb 0:8918a71cdbe9 125 error_t nbnsInit(NetInterface *interface);
Sergunb 0:8918a71cdbe9 126
Sergunb 0:8918a71cdbe9 127 void nbnsProcessMessage(NetInterface *interface, const IpPseudoHeader *pseudoHeader,
Sergunb 0:8918a71cdbe9 128 const UdpHeader *udpHeader, const NetBuffer *buffer, size_t offset, void *params);
Sergunb 0:8918a71cdbe9 129
Sergunb 0:8918a71cdbe9 130 size_t nbnsEncodeName(const char_t *src, uint8_t *dest);
Sergunb 0:8918a71cdbe9 131
Sergunb 0:8918a71cdbe9 132 size_t nbnsParseName(const NbnsHeader *message,
Sergunb 0:8918a71cdbe9 133 size_t length, size_t pos, char_t *dest);
Sergunb 0:8918a71cdbe9 134
Sergunb 0:8918a71cdbe9 135 bool_t nbnsCompareName(const NbnsHeader *message,
Sergunb 0:8918a71cdbe9 136 size_t length, size_t pos, const char_t *name);
Sergunb 0:8918a71cdbe9 137
Sergunb 0:8918a71cdbe9 138 #endif
Sergunb 0:8918a71cdbe9 139