Ryo Iizuka
This is Webservice SDK for mbed. LPCXpresso1769/LPC1768/FRDM-K64F/LPC4088
Dependents: MbedFileServer_1768MiniDK2 RedWireBridge IssueDebug_gcc MiMicRemoteMCU-for-Mbed ... more
libMiMic(MiMic library for mbed)は、WebService機能を提供するSDKです。 mbedでWebAPIに対応したネットワークデバイスを簡単に作ることが出来ます。
libMiMicはMiMic projectで開発しています。MiMic projectについてはこちらをご覧ください。 http://nyatla.jp/mimic/wp/
構成
libMiMicはmbedRTOS上で動作し、ユーザアプリケーションにAPIを提供します。コアAPIはC言語で記述されていますが、使用頻度の高いものについてはmbed向けのC++APIが準備されています。
※libMiMicはmbedの標準イーサネットドライバをしようしていません。
標準イーサネットドライバと同時に使用することはできません。
- MiMicIP - IPv4スタックです。レテンシとメモリ消費量を抑えたuipベースのライブラリです。
- ARP/ICMP/UDP/TCP - 基礎的なソケットAPIを提供します。APIは独自です。
- HTTP/1.1 Server - HTTP/1.1に対応したサーバです。マルチセッション・Chunked・持続性接続に対応しています。
- HTTP Modules - HTTP/1.1の機能モジュールです。以下のモジュールがあります。
- ROM file provider - ROMに格納したファイルイメージを公開します。
- File system provider - mbedファイルシステムを公開します。
- Onchip configuration - プログラムフラッシュを利用して設定を保存します。
- MiMicVM processor - RPCリクエスト(MiMicVM)を処理します。
- FileUpload - ファイルアップロードを受け取ります。
- URL decoder - HTTPリクエストを解析します。
- UPnP handler -UPnPメッセージを処理します。
- WebSocket - Websocketサーバです。
- mDNS - マルチキャストDNSサービスです。
- UPnP - UPnP/1.0の機能を提供します。UPnP handlerと協調して動作します。(現在はデバイス探索(SSDP)・デスクリプション(Description)のみ実装してあります。)
- DHCP/APIPA - ゼロコンフィギュレーション用のモジュールです。
- HTTP/1.1 Client
- mbed C++ class library - mbed向けのC++CPIです。C言語のものより簡単です。
対応機種
- mbed(mbed LPC1768)
- LPCXpresso1769
プログラム
Import programMiMicRemoteMCU-for-Mbed
MiMic RemoteMCU for mbed. This program provides MCU control API over REST API. It can control MCU from Javascript,PHP or any HTTP rest client directly. And, The application has self development environment.
Last commit 30 May 2014 by 
Ryo Iizuka
Import programMbedFileServer
The program publishes files at local directory and SD filesystem. It is a full-fledged webServer somewhat.
Last commit 15 Sep 2015 by Ryo Iizuka
サンプル
Import programMiMicSimpleHttpd
This is a simplest HTTP server made of libMiMic. It will echo back a request path.
Last commit 15 Sep 2015 by Ryo Iizuka
Import programUPnPBasicDevice
Simplest UPnP basic device example. This program to run UPnP basic device on the mbed.
Last commit 15 Sep 2015 by Ryo Iizuka
Import programWebSocketSample
MiMicSDK Websocket module sample program.
Last commit 15 Sep 2015 by Ryo Iizuka
Import programTcpSocketClientSamlpe
MiMicSDK Tcp client socket sample program.
Last commit 15 Sep 2015 by Ryo Iizuka
Import programUdpSocketSamlpe
Udp socket sample program. This program will send back the received packet.
Last commit 15 Sep 2015 by Ryo Iizuka
チュートリアル
- HTTPD解説
- UPnPデバイスの作り方
- MiMicRemoteMCUの紹介(pdf)
- MiMicRemoteMCUのマニュアル(pdf)
English
libMiMic(MiMic library for mbed) is SDK which provides Webservice functions. It can be created networking device easily using mbed.
See more MiMic information, See MiMic project website. http://nyatla.jp/mimic/wp/
Structure
libMiMic run on mbed RTOS and provides networking API to user application. This library has C++ class API for the mbed, and low-level C language API.
For WebService general, it can be written in a simple C + + API.
libMiMic does not have the standard Ethernet driver of mbed. It is not possible that will be used with the standard Ethernet driver.
- MiMicIP - IPv4 protocol stack. This is based uip which is reduced memory and latency.
- ARP / ICMP / UDP / TCP - Those are provide basic IP protocols.
- HTTP/1.1 Server - The Http server compatible HTTP/1.1. It supports multi-session, chunked transport, persistent connection.
- HTTP Modules - There are addon-module for HTTP server. The following modules.
- ROM file module - Publish the file images in ROM.
- File system module - Publish thefiles in mbed file system.
- Onchip configuration module - To save the network settings to the program flash via REST.
- MiMicVM module - To handle the (MiMicVM) RPC request.
- FileUpload module - Accept a file via HTTP POST.
- URL dedoce module - A versatility URL decoder.
- UPnP handle module - To handle UPnP messages.
- UPnP - This provides UPnP/1.0 device functions. It works together with UPnP handler.
- Websocket - websocket (version13) server
- mDNS Service - DNS-SD protocol server.
- UPnP - This provides UPnP/1.0 device functions which works with UPnP handler. (You have been implemented (SSDP) ? description only (Description) device search now.) It is a module zero configuration for - DHCP / APIPA. mbed C + + class library - C of mbed for + + is the CPI. It is simple than that of the C language.
- DHCP/APIPA - It support zero-cpnfigulation.
- mbed C++ class library. Almost APIs for Web applications are available.
- HTTP/1.1 Client
Supported target
- mbed(mbed LPC1768)
- LPCXpresso1769
Application
Import programMiMicRemoteMCU-for-Mbed
MiMic RemoteMCU for mbed. This program provides MCU control API over REST API. It can control MCU from Javascript,PHP or any HTTP rest client directly. And, The application has self development environment.
Last commit 30 May 2014 by Ryo Iizuka
Import programMbedFileServer
The program publishes files at local directory and SD filesystem. It is a full-fledged webServer somewhat.
Last commit 15 Sep 2015 by Ryo Iizuka
Sample
Import programMiMicSimpleHttpd
This is a simplest HTTP server made of libMiMic. It will echo back a request path.
Last commit 15 Sep 2015 by Ryo Iizuka
Import programUPnPBasicDevice
Simplest UPnP basic device example. This program to run UPnP basic device on the mbed.
Last commit 15 Sep 2015 by Ryo Iizuka
Import programWebSocketSample
MiMicSDK Websocket module sample program.
Last commit 15 Sep 2015 by Ryo Iizuka
Import programTcpSocketClientSamlpe
MiMicSDK Tcp client socket sample program.
Last commit 15 Sep 2015 by Ryo Iizuka
Import programUdpSocketSamlpe
Udp socket sample program. This program will send back the received packet.
Last commit 15 Sep 2015 by Ryo Iizuka
Tutorial
- HTTPD hello world.
- How to make own UPnP device.
- MiMicRemoteMCUの紹介(pdf)
- MiMicRemoteMCUのマニュアル(pdf)
core/net/mdns/NyLPC_cMDnsServer.c@110:257739f9b31e, 2015-03-15 (annotated)
- Committer:
- nyatla
- Date:
- Sun Mar 15 09:33:38 2015 +0000
- Revision:
- 110:257739f9b31e
- Parent:
- 109:18f12ac01097
51d1c88c8a56d6295311cfd20aa197a9cd650b2d; ????; NetworkInterface???????
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| nyatla | 37:fc4b4fd6a649 | 1 | /********************************************************************************* |
| nyatla | 37:fc4b4fd6a649 | 2 | * PROJECT: MiMic |
| nyatla | 37:fc4b4fd6a649 | 3 | * -------------------------------------------------------------------------------- |
| nyatla | 37:fc4b4fd6a649 | 4 | * |
| nyatla | 37:fc4b4fd6a649 | 5 | * This file is part of MiMic |
| nyatla | 37:fc4b4fd6a649 | 6 | * Copyright (C)2011 Ryo Iizuka |
| nyatla | 37:fc4b4fd6a649 | 7 | * |
| nyatla | 37:fc4b4fd6a649 | 8 | * MiMic is free software: you can redistribute it and/or modify |
| nyatla | 37:fc4b4fd6a649 | 9 | * it under the terms of the GNU Lesser General Public License as published |
| nyatla | 37:fc4b4fd6a649 | 10 | * by the Free Software Foundation, either version 3 of the License, or |
| nyatla | 37:fc4b4fd6a649 | 11 | * (at your option) any later version. |
| nyatla | 37:fc4b4fd6a649 | 12 | * |
| nyatla | 37:fc4b4fd6a649 | 13 | * This program is distributed in the hope that it will be useful, |
| nyatla | 37:fc4b4fd6a649 | 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| nyatla | 37:fc4b4fd6a649 | 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| nyatla | 37:fc4b4fd6a649 | 16 | * GNU General Public License for more details. |
| nyatla | 37:fc4b4fd6a649 | 17 | * |
| nyatla | 37:fc4b4fd6a649 | 18 | * You should have received a copy of the GNU Lesser General Public License |
| nyatla | 37:fc4b4fd6a649 | 19 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| nyatla | 37:fc4b4fd6a649 | 20 | * |
| nyatla | 37:fc4b4fd6a649 | 21 | * For further information please contact. |
| nyatla | 37:fc4b4fd6a649 | 22 | * http://nyatla.jp/ |
| nyatla | 37:fc4b4fd6a649 | 23 | * <airmail(at)ebony.plala.or.jp> or <nyatla(at)nyatla.jp> |
| nyatla | 37:fc4b4fd6a649 | 24 | * |
| nyatla | 37:fc4b4fd6a649 | 25 | *********************************************************************************/ |
| nyatla | 37:fc4b4fd6a649 | 26 | #include "NyLPC_cMDnsServer.h" |
| nyatla | 109:18f12ac01097 | 27 | #include "NyLPC_netif.h" |
| nyatla | 37:fc4b4fd6a649 | 28 | #include "NyLPC_http.h" |
| nyatla | 37:fc4b4fd6a649 | 29 | #include "NyLPC_utils.h" |
| nyatla | 37:fc4b4fd6a649 | 30 | #include <stdio.h> |
| nyatla | 37:fc4b4fd6a649 | 31 | #include <string.h> |
| nyatla | 37:fc4b4fd6a649 | 32 | |
| nyatla | 37:fc4b4fd6a649 | 33 | |
| nyatla | 37:fc4b4fd6a649 | 34 | /** |
| nyatla | 37:fc4b4fd6a649 | 35 | * mDNSのポート番号 |
| nyatla | 37:fc4b4fd6a649 | 36 | */ |
| nyatla | 37:fc4b4fd6a649 | 37 | #define MDNS_MCAST_PORT 5353 |
| nyatla | 103:853ddf4a1b81 | 38 | static const struct NyLPC_TIPv4Addr MDNS_MCAST_IPADDR = NyLPC_TIPv4Addr_pack(224, 0, 0, 251); |
| nyatla | 37:fc4b4fd6a649 | 39 | #define TIMEOUT_IN_MS 1000 |
| nyatla | 104:4f4781ecdc79 | 40 | #define NyLPC_TcMDns_RES_TTL (120) //120 |
| nyatla | 104:4f4781ecdc79 | 41 | #define NyLPC_TcMDns_STD_TTL (30*60) //(30min |
| nyatla | 37:fc4b4fd6a649 | 42 | |
| nyatla | 37:fc4b4fd6a649 | 43 | |
| nyatla | 37:fc4b4fd6a649 | 44 | struct NyLPC_TDnsHeader |
| nyatla | 37:fc4b4fd6a649 | 45 | { |
| nyatla | 37:fc4b4fd6a649 | 46 | NyLPC_TUInt16 id; |
| nyatla | 37:fc4b4fd6a649 | 47 | NyLPC_TUInt16 flag; |
| nyatla | 37:fc4b4fd6a649 | 48 | NyLPC_TUInt16 qd; |
| nyatla | 37:fc4b4fd6a649 | 49 | NyLPC_TUInt16 an; |
| nyatla | 37:fc4b4fd6a649 | 50 | NyLPC_TUInt16 ns; |
| nyatla | 37:fc4b4fd6a649 | 51 | NyLPC_TUInt16 ar; |
| nyatla | 37:fc4b4fd6a649 | 52 | }PACK_STRUCT_END; |
| nyatla | 37:fc4b4fd6a649 | 53 | |
| nyatla | 37:fc4b4fd6a649 | 54 | #define NyLPC_TDnsHeader_FLAG_MASK_QR 0x8000 |
| nyatla | 37:fc4b4fd6a649 | 55 | #define NyLPC_TDnsHeader_FLAG_MASK_OPCODE 0x7800 |
| nyatla | 37:fc4b4fd6a649 | 56 | #define NyLPC_TDnsHeader_FLAG_MASK_AA 0x0400 |
| nyatla | 37:fc4b4fd6a649 | 57 | #define NyLPC_TDnsHeader_FLAG_MASK_TC 0x0200 |
| nyatla | 37:fc4b4fd6a649 | 58 | #define NyLPC_TDnsHeader_FLAG_MASK_RD 0x0100 |
| nyatla | 37:fc4b4fd6a649 | 59 | #define NyLPC_TDnsHeader_FLAG_MASK_RA 0x0080 |
| nyatla | 37:fc4b4fd6a649 | 60 | #define NyLPC_TDnsHeader_FLAG_MASK_Z 0x0070 |
| nyatla | 37:fc4b4fd6a649 | 61 | #define NyLPC_TDnsHeader_FLAG_MASK_RECODE 0x000F |
| nyatla | 37:fc4b4fd6a649 | 62 | |
| nyatla | 37:fc4b4fd6a649 | 63 | struct NyLPC_TDnsQuestion |
| nyatla | 37:fc4b4fd6a649 | 64 | { |
| nyatla | 98:6284ce9a0476 | 65 | const char* buf; //Questionパケットの先頭 |
| nyatla | 98:6284ce9a0476 | 66 | NyLPC_TUInt16 buf_len; //パケット長さ |
| nyatla | 37:fc4b4fd6a649 | 67 | NyLPC_TUInt16 qtype; |
| nyatla | 37:fc4b4fd6a649 | 68 | NyLPC_TUInt16 qclass; |
| nyatla | 98:6284ce9a0476 | 69 | NyLPC_TInt16 qname_pos;//Qnameの開始位置 |
| nyatla | 37:fc4b4fd6a649 | 70 | }; |
| nyatla | 98:6284ce9a0476 | 71 | |
| nyatla | 37:fc4b4fd6a649 | 72 | #define NyLPC_TDnsQuestion_QTYPR_A 1 |
| nyatla | 37:fc4b4fd6a649 | 73 | #define NyLPC_TDnsQuestion_QTYPR_NS 2 |
| nyatla | 37:fc4b4fd6a649 | 74 | #define NyLPC_TDnsQuestion_QTYPR_CNAME 5 |
| nyatla | 37:fc4b4fd6a649 | 75 | #define NyLPC_TDnsQuestion_QTYPR_SOA 6 |
| nyatla | 37:fc4b4fd6a649 | 76 | #define NyLPC_TDnsQuestion_QTYPR_PTR 12 |
| nyatla | 37:fc4b4fd6a649 | 77 | #define NyLPC_TDnsQuestion_QTYPR_MX 15 |
| nyatla | 37:fc4b4fd6a649 | 78 | #define NyLPC_TDnsQuestion_QTYPR_TXT 16 |
| nyatla | 37:fc4b4fd6a649 | 79 | #define NyLPC_TDnsQuestion_QTYPR_ANY 255 |
| nyatla | 102:41a5e92e0a8e | 80 | #define NyLPC_TDnsQuestion_QTYPR_AAAA 28 |
| nyatla | 102:41a5e92e0a8e | 81 | #define NyLPC_TDnsQuestion_QTYPR_NSEC 47 |
| nyatla | 37:fc4b4fd6a649 | 82 | #define NyLPC_TDnsQuestion_QCLASS_IN 1 |
| nyatla | 37:fc4b4fd6a649 | 83 | #define NyLPC_TDnsQuestion_QCLASS_CH 3 |
| nyatla | 37:fc4b4fd6a649 | 84 | #define NyLPC_TDnsQuestion_QCLASS_HS 4 |
| nyatla | 37:fc4b4fd6a649 | 85 | #define NyLPC_TDnsQuestion_QTYPR_SRV 33 |
| nyatla | 101:5022828ace54 | 86 | #define NyLPC_TDnsQuestion_QCLASS_CACHE_FLUSH 0x8000 |
| nyatla | 101:5022828ace54 | 87 | |
| nyatla | 37:fc4b4fd6a649 | 88 | |
| nyatla | 37:fc4b4fd6a649 | 89 | /************************************************** |
| nyatla | 103:853ddf4a1b81 | 90 | * TLabelCache |
| nyatla | 103:853ddf4a1b81 | 91 | **************************************************/ |
| nyatla | 98:6284ce9a0476 | 92 | /** |
| nyatla | 98:6284ce9a0476 | 93 | * nameフィールドの文字列圧縮を解除して圧縮後のテキストポインタを返します。 |
| nyatla | 98:6284ce9a0476 | 94 | */ |
| nyatla | 98:6284ce9a0476 | 95 | static const char* getExtractNamePos(const char* i_packet_buf, const char* i_spos) |
| nyatla | 37:fc4b4fd6a649 | 96 | { |
| nyatla | 103:853ddf4a1b81 | 97 | NyLPC_TUInt8 limit = 0; |
| nyatla | 98:6284ce9a0476 | 98 | const char* s = i_spos;// question->buf + pos;//クエリの解析位置 |
| nyatla | 98:6284ce9a0476 | 99 | for (;;){ |
| nyatla | 98:6284ce9a0476 | 100 | switch (*(const NyLPC_TUInt8*)s){ |
| nyatla | 98:6284ce9a0476 | 101 | case 0x00: |
| nyatla | 98:6284ce9a0476 | 102 | //queryが先に終了に到達するのはおかしい。 |
| nyatla | 98:6284ce9a0476 | 103 | return NULL; |
| nyatla | 98:6284ce9a0476 | 104 | case 0xc0: |
| nyatla | 98:6284ce9a0476 | 105 | s = i_packet_buf + *((const NyLPC_TUInt8*)s + 1);//参照先にジャンプ |
| nyatla | 103:853ddf4a1b81 | 106 | if (i_spos <= s){ |
| nyatla | 98:6284ce9a0476 | 107 | //後方参照ならエラー |
| nyatla | 98:6284ce9a0476 | 108 | return NULL; |
| nyatla | 98:6284ce9a0476 | 109 | } |
| nyatla | 98:6284ce9a0476 | 110 | limit++; |
| nyatla | 98:6284ce9a0476 | 111 | if (limit > 32){ |
| nyatla | 98:6284ce9a0476 | 112 | return NULL; |
| nyatla | 98:6284ce9a0476 | 113 | } |
| nyatla | 98:6284ce9a0476 | 114 | continue; |
| nyatla | 98:6284ce9a0476 | 115 | default: |
| nyatla | 98:6284ce9a0476 | 116 | break; |
| nyatla | 98:6284ce9a0476 | 117 | } |
| nyatla | 98:6284ce9a0476 | 118 | break; |
| nyatla | 98:6284ce9a0476 | 119 | } |
| nyatla | 98:6284ce9a0476 | 120 | return s; |
| nyatla | 98:6284ce9a0476 | 121 | } |
| nyatla | 98:6284ce9a0476 | 122 | |
| nyatla | 98:6284ce9a0476 | 123 | /** |
| nyatla | 103:853ddf4a1b81 | 124 | * 展開しない圧縮文字列の長さを返す |
| nyatla | 103:853ddf4a1b81 | 125 | */ |
| nyatla | 101:5022828ace54 | 126 | static NyLPC_TInt16 sizeofCompressName(const char* i_str) |
| nyatla | 37:fc4b4fd6a649 | 127 | { |
| nyatla | 98:6284ce9a0476 | 128 | NyLPC_TInt16 l = 0; |
| nyatla | 98:6284ce9a0476 | 129 | NyLPC_TUInt8 c; |
| nyatla | 98:6284ce9a0476 | 130 | for (;;){ |
| nyatla | 98:6284ce9a0476 | 131 | c = (NyLPC_TUInt8)*(i_str + l); |
| nyatla | 98:6284ce9a0476 | 132 | switch (c){ |
| nyatla | 98:6284ce9a0476 | 133 | case 0xc0: |
| nyatla | 98:6284ce9a0476 | 134 | return l + 2; |
| nyatla | 98:6284ce9a0476 | 135 | case 0x00: |
| nyatla | 98:6284ce9a0476 | 136 | return l + 1; |
| nyatla | 98:6284ce9a0476 | 137 | } |
| nyatla | 98:6284ce9a0476 | 138 | l += c + 1; |
| nyatla | 98:6284ce9a0476 | 139 | } |
| nyatla | 37:fc4b4fd6a649 | 140 | } |
| nyatla | 98:6284ce9a0476 | 141 | /** |
| nyatla | 103:853ddf4a1b81 | 142 | * @return |
| nyatla | 103:853ddf4a1b81 | 143 | * 圧縮するとtrue i_nameは2文字に圧縮される。 |
| nyatla | 103:853ddf4a1b81 | 144 | */ |
| nyatla | 98:6284ce9a0476 | 145 | static NyLPC_TBool compressNameB(char* i_packet, NyLPC_TUInt16 i_spos, NyLPC_TUInt16 i_name_pos) |
| nyatla | 37:fc4b4fd6a649 | 146 | { |
| nyatla | 98:6284ce9a0476 | 147 | NyLPC_TUInt16 ret; |
| nyatla | 98:6284ce9a0476 | 148 | const char* p; //プロトコル文字列の解析開始位置 |
| nyatla | 98:6284ce9a0476 | 149 | const char* s = i_packet + i_spos; //クエリの解析位置 |
| nyatla | 98:6284ce9a0476 | 150 | const char* s2; |
| nyatla | 98:6284ce9a0476 | 151 | |
| nyatla | 98:6284ce9a0476 | 152 | //Protocol |
| nyatla | 98:6284ce9a0476 | 153 | for (;;){ |
| nyatla | 98:6284ce9a0476 | 154 | //0xc0参照の解決 |
| nyatla | 98:6284ce9a0476 | 155 | s = getExtractNamePos(i_packet, s); |
| nyatla | 98:6284ce9a0476 | 156 | if (s == NULL){ |
| nyatla | 98:6284ce9a0476 | 157 | //一致しない |
| nyatla | 98:6284ce9a0476 | 158 | return 0; |
| nyatla | 98:6284ce9a0476 | 159 | } |
| nyatla | 98:6284ce9a0476 | 160 | for (;;){ |
| nyatla | 98:6284ce9a0476 | 161 | //検索位置のドメインを遡る |
| nyatla | 103:853ddf4a1b81 | 162 | if (*s == *(i_packet + i_name_pos)){ |
| nyatla | 98:6284ce9a0476 | 163 | //先頭一致 |
| nyatla | 98:6284ce9a0476 | 164 | p = i_packet + i_name_pos; |
| nyatla | 98:6284ce9a0476 | 165 | s2 = getExtractNamePos(i_packet, s); |
| nyatla | 98:6284ce9a0476 | 166 | ret = (NyLPC_TUInt16)(s2 - i_packet); |
| nyatla | 98:6284ce9a0476 | 167 | for (;;){ |
| nyatla | 98:6284ce9a0476 | 168 | //一致判定 |
| nyatla | 98:6284ce9a0476 | 169 | if (s2 == NULL){ |
| nyatla | 98:6284ce9a0476 | 170 | break; |
| nyatla | 98:6284ce9a0476 | 171 | } |
| nyatla | 98:6284ce9a0476 | 172 | |
| nyatla | 98:6284ce9a0476 | 173 | if (memcmp(p, s2, (*(NyLPC_TUInt8*)s2 + 1)) != 0){ |
| nyatla | 98:6284ce9a0476 | 174 | //不一致 |
| nyatla | 98:6284ce9a0476 | 175 | break; |
| nyatla | 98:6284ce9a0476 | 176 | } |
| nyatla | 98:6284ce9a0476 | 177 | //検出位置の移動 |
| nyatla | 98:6284ce9a0476 | 178 | p += (*(NyLPC_TUInt8*)s2) + 1; |
| nyatla | 98:6284ce9a0476 | 179 | s2 += (*(NyLPC_TUInt8*)s2) + 1; |
| nyatla | 98:6284ce9a0476 | 180 | if (*p == 0 && *s2 == 0){ |
| nyatla | 98:6284ce9a0476 | 181 | //charで扱ってるクライアントのコケ防止 |
| nyatla | 103:853ddf4a1b81 | 182 | if (ret>0xff){ |
| nyatla | 98:6284ce9a0476 | 183 | return 0; |
| nyatla | 98:6284ce9a0476 | 184 | } |
| nyatla | 98:6284ce9a0476 | 185 | *(i_packet + i_name_pos + 0) = 0xc0; |
| nyatla | 98:6284ce9a0476 | 186 | *(i_packet + i_name_pos + 1) = (NyLPC_TUInt8)ret; |
| nyatla | 98:6284ce9a0476 | 187 | return ret; |
| nyatla | 98:6284ce9a0476 | 188 | } |
| nyatla | 98:6284ce9a0476 | 189 | s2 = getExtractNamePos(i_packet, s2); |
| nyatla | 37:fc4b4fd6a649 | 190 | } |
| nyatla | 98:6284ce9a0476 | 191 | } |
| nyatla | 98:6284ce9a0476 | 192 | //一致しない->検索パターンの次のフラグメントを調べる |
| nyatla | 98:6284ce9a0476 | 193 | s += (*(NyLPC_TUInt8*)s) + 1; |
| nyatla | 98:6284ce9a0476 | 194 | break; |
| nyatla | 98:6284ce9a0476 | 195 | } |
| nyatla | 37:fc4b4fd6a649 | 196 | } |
| nyatla | 98:6284ce9a0476 | 197 | } |
| nyatla | 98:6284ce9a0476 | 198 | /** |
| nyatla | 103:853ddf4a1b81 | 199 | * mDNSパケットからi_nameを検索する。 |
| nyatla | 103:853ddf4a1b81 | 200 | * i_targetはi_packetに含まれ、NULL終端されていること |
| nyatla | 103:853ddf4a1b81 | 201 | * @return 0 圧縮失敗/その他:圧縮後のパケットサイズ |
| nyatla | 103:853ddf4a1b81 | 202 | * |
| nyatla | 103:853ddf4a1b81 | 203 | */ |
| nyatla | 103:853ddf4a1b81 | 204 | static NyLPC_TUInt16 compressNameA(char* i_packet, NyLPC_TUInt16 i_name_start, NyLPC_TUInt16 i_name_pos) |
| nyatla | 98:6284ce9a0476 | 205 | { |
| nyatla | 98:6284ce9a0476 | 206 | NyLPC_TUInt16 s = 12; |
| nyatla | 98:6284ce9a0476 | 207 | for (;;){ |
| nyatla | 98:6284ce9a0476 | 208 | if (i_name_start <= s){ |
| nyatla | 98:6284ce9a0476 | 209 | //圧縮対象文字列に到達 |
| nyatla | 98:6284ce9a0476 | 210 | return 0; |
| nyatla | 98:6284ce9a0476 | 211 | } |
| nyatla | 98:6284ce9a0476 | 212 | //i_targetとAnswer文字列が等しいか確認 |
| nyatla | 98:6284ce9a0476 | 213 | if (compressNameB(i_packet, s, i_name_pos)){ |
| nyatla | 98:6284ce9a0476 | 214 | return i_name_pos + 2; |
| nyatla | 98:6284ce9a0476 | 215 | } |
| nyatla | 98:6284ce9a0476 | 216 | // |
| nyatla | 103:853ddf4a1b81 | 217 | s += sizeofCompressName(i_packet + s); |
| nyatla | 103:853ddf4a1b81 | 218 | s += 2 + 2 + 4 + 2; |
| nyatla | 103:853ddf4a1b81 | 219 | if (i_name_start <= s){ |
| nyatla | 103:853ddf4a1b81 | 220 | //圧縮対象文字列に到達 |
| nyatla | 103:853ddf4a1b81 | 221 | return 0; |
| nyatla | 98:6284ce9a0476 | 222 | } |
| nyatla | 103:853ddf4a1b81 | 223 | // //データは圧縮ポインタにしない方がいいらしい。 |
| nyatla | 103:853ddf4a1b81 | 224 | // if (compressNameB(i_packet, s, i_name_pos)){ |
| nyatla | 103:853ddf4a1b81 | 225 | // return i_name_pos + 2; |
| nyatla | 103:853ddf4a1b81 | 226 | // } |
| nyatla | 103:853ddf4a1b81 | 227 | s += NyLPC_ntohs(*((NyLPC_TUInt16*)(i_packet + s - 2))); |
| nyatla | 98:6284ce9a0476 | 228 | } |
| nyatla | 98:6284ce9a0476 | 229 | } |
| nyatla | 98:6284ce9a0476 | 230 | /** |
| nyatla | 103:853ddf4a1b81 | 231 | * @return |
| nyatla | 103:853ddf4a1b81 | 232 | * 新しいi_packetの長さ |
| nyatla | 103:853ddf4a1b81 | 233 | */ |
| nyatla | 98:6284ce9a0476 | 234 | static NyLPC_TUInt16 compressName(char* i_packet, NyLPC_TUInt16 i_name_pos, NyLPC_TUInt16 i_name_len) |
| nyatla | 98:6284ce9a0476 | 235 | { |
| nyatla | 98:6284ce9a0476 | 236 | NyLPC_TUInt16 p; |
| nyatla | 98:6284ce9a0476 | 237 | NyLPC_TUInt16 s = i_name_pos; |
| nyatla | 98:6284ce9a0476 | 238 | for (;;){ |
| nyatla | 103:853ddf4a1b81 | 239 | p = compressNameA(i_packet, i_name_pos, s); |
| nyatla | 98:6284ce9a0476 | 240 | //i_targetとAnswer文字列が等しいか確認 |
| nyatla | 98:6284ce9a0476 | 241 | if (p != 0){ |
| nyatla | 98:6284ce9a0476 | 242 | return p; |
| nyatla | 98:6284ce9a0476 | 243 | } |
| nyatla | 98:6284ce9a0476 | 244 | s += (NyLPC_TUInt16)*(i_packet + s) + 1; |
| nyatla | 103:853ddf4a1b81 | 245 | if (*(i_packet + s) == 0){ |
| nyatla | 98:6284ce9a0476 | 246 | //圧縮対象文字列に到達 |
| nyatla | 98:6284ce9a0476 | 247 | return (i_name_len + i_name_pos); |
| nyatla | 98:6284ce9a0476 | 248 | } |
| nyatla | 98:6284ce9a0476 | 249 | } |
| nyatla | 37:fc4b4fd6a649 | 250 | } |
| nyatla | 37:fc4b4fd6a649 | 251 | |
| nyatla | 37:fc4b4fd6a649 | 252 | |
| nyatla | 37:fc4b4fd6a649 | 253 | |
| nyatla | 37:fc4b4fd6a649 | 254 | |
| nyatla | 37:fc4b4fd6a649 | 255 | |
| nyatla | 37:fc4b4fd6a649 | 256 | /** |
| nyatla | 37:fc4b4fd6a649 | 257 | * 受領可能なQuestionか確認する |
| nyatla | 37:fc4b4fd6a649 | 258 | * @return |
| nyatla | 37:fc4b4fd6a649 | 259 | * 受領可能なQuestionの数 |
| nyatla | 37:fc4b4fd6a649 | 260 | * |
| nyatla | 37:fc4b4fd6a649 | 261 | */ |
| nyatla | 98:6284ce9a0476 | 262 | static NyLPC_TUInt16 getNumberOfQuestion(const void* i_packet, NyLPC_TUInt16 i_len) |
| nyatla | 37:fc4b4fd6a649 | 263 | { |
| nyatla | 98:6284ce9a0476 | 264 | struct NyLPC_TDnsHeader* ptr = (struct NyLPC_TDnsHeader*)i_packet; |
| nyatla | 37:fc4b4fd6a649 | 265 | NyLPC_TUInt16 t; |
| nyatla | 98:6284ce9a0476 | 266 | if (i_len<sizeof(struct NyLPC_TDnsHeader)){ |
| nyatla | 37:fc4b4fd6a649 | 267 | return NyLPC_TBool_FALSE; |
| nyatla | 37:fc4b4fd6a649 | 268 | } |
| nyatla | 37:fc4b4fd6a649 | 269 | //questrionの確認 |
| nyatla | 37:fc4b4fd6a649 | 270 | //QR==0 && op==0 && tc=0 |
| nyatla | 98:6284ce9a0476 | 271 | t = NyLPC_ntohs(ptr->flag); |
| nyatla | 98:6284ce9a0476 | 272 | if (((t & NyLPC_TDnsHeader_FLAG_MASK_QR) != 0) && |
| nyatla | 98:6284ce9a0476 | 273 | ((t & NyLPC_TDnsHeader_FLAG_MASK_OPCODE) != 0) && |
| nyatla | 98:6284ce9a0476 | 274 | ((t & NyLPC_TDnsHeader_FLAG_MASK_TC) != 0)) |
| nyatla | 37:fc4b4fd6a649 | 275 | { |
| nyatla | 37:fc4b4fd6a649 | 276 | //this is response |
| nyatla | 37:fc4b4fd6a649 | 277 | return 0; |
| nyatla | 37:fc4b4fd6a649 | 278 | } |
| nyatla | 37:fc4b4fd6a649 | 279 | return NyLPC_ntohs(ptr->qd); |
| nyatla | 37:fc4b4fd6a649 | 280 | } |
| nyatla | 37:fc4b4fd6a649 | 281 | |
| nyatla | 98:6284ce9a0476 | 282 | /** |
| nyatla | 98:6284ce9a0476 | 283 | * [i_name].[i_protocol].localをquestionと比較します。i_nameは省略ができます。 |
| nyatla | 101:5022828ace54 | 284 | * i_nameはincasesensitiveです。 |
| nyatla | 98:6284ce9a0476 | 285 | * @return 等しい場合true |
| nyatla | 98:6284ce9a0476 | 286 | */ |
| nyatla | 98:6284ce9a0476 | 287 | static NyLPC_TBool NyLPC_TDnsQuestion_isEqualName(const struct NyLPC_TDnsQuestion* question, const char* i_name, const char* i_protocol) |
| nyatla | 37:fc4b4fd6a649 | 288 | { |
| nyatla | 98:6284ce9a0476 | 289 | NyLPC_TUInt8 tmp; |
| nyatla | 98:6284ce9a0476 | 290 | const char* p; //プロトコル文字列の解析開始位置 |
| nyatla | 98:6284ce9a0476 | 291 | const char* s = question->buf + (NyLPC_TUInt8)question->qname_pos; //クエリの解析位置 |
| nyatla | 98:6284ce9a0476 | 292 | |
| nyatla | 98:6284ce9a0476 | 293 | //Domain |
| nyatla | 98:6284ce9a0476 | 294 | if (i_name != NULL){ |
| nyatla | 98:6284ce9a0476 | 295 | //0xc0参照の解決 |
| nyatla | 98:6284ce9a0476 | 296 | s = getExtractNamePos(question->buf, s); |
| nyatla | 98:6284ce9a0476 | 297 | if (s == NULL){ |
| nyatla | 98:6284ce9a0476 | 298 | return NyLPC_TBool_FALSE; |
| nyatla | 98:6284ce9a0476 | 299 | } |
| nyatla | 98:6284ce9a0476 | 300 | tmp = (NyLPC_TUInt8)strlen(i_name); |
| nyatla | 101:5022828ace54 | 301 | if (tmp != *s || NyLPC_strnicmp(s + 1, i_name, tmp) != 0){ |
| nyatla | 98:6284ce9a0476 | 302 | return NyLPC_TBool_FALSE; |
| nyatla | 98:6284ce9a0476 | 303 | } |
| nyatla | 98:6284ce9a0476 | 304 | s += (*s) + 1; |
| nyatla | 103:853ddf4a1b81 | 305 | } |
| nyatla | 103:853ddf4a1b81 | 306 | else{ |
| nyatla | 98:6284ce9a0476 | 307 | s = question->buf + (NyLPC_TUInt8)question->qname_pos;//クエリの解析位置 |
| nyatla | 98:6284ce9a0476 | 308 | } |
| nyatla | 98:6284ce9a0476 | 309 | p = i_protocol; |
| nyatla | 98:6284ce9a0476 | 310 | //Protocol |
| nyatla | 98:6284ce9a0476 | 311 | for (;;){ |
| nyatla | 98:6284ce9a0476 | 312 | //0xc0参照の解決 |
| nyatla | 98:6284ce9a0476 | 313 | s = getExtractNamePos(question->buf, s); |
| nyatla | 98:6284ce9a0476 | 314 | if (s == NULL){ |
| nyatla | 98:6284ce9a0476 | 315 | return NyLPC_TBool_FALSE; |
| nyatla | 98:6284ce9a0476 | 316 | } |
| nyatla | 98:6284ce9a0476 | 317 | //SRVの末端到達 |
| nyatla | 98:6284ce9a0476 | 318 | if (*p == 0){ |
| nyatla | 98:6284ce9a0476 | 319 | if (question->buf + question->buf_len<s + 7 + 4){ |
| nyatla | 98:6284ce9a0476 | 320 | return NyLPC_TBool_FALSE; |
| nyatla | 98:6284ce9a0476 | 321 | } |
| nyatla | 98:6284ce9a0476 | 322 | return (memcmp("\5local\0", s, 7) == 0); |
| nyatla | 98:6284ce9a0476 | 323 | } |
| nyatla | 98:6284ce9a0476 | 324 | //有効サイズなら一致検出 |
| nyatla | 98:6284ce9a0476 | 325 | if (question->buf + question->buf_len<s + 1 + (NyLPC_TUInt8)*s + 4){ |
| nyatla | 98:6284ce9a0476 | 326 | return NyLPC_TBool_FALSE; |
| nyatla | 98:6284ce9a0476 | 327 | } |
| nyatla | 98:6284ce9a0476 | 328 | if (memcmp(p, s + 1, (NyLPC_TUInt8)*s) != 0){ |
| nyatla | 98:6284ce9a0476 | 329 | //不一致 |
| nyatla | 98:6284ce9a0476 | 330 | return NyLPC_TBool_FALSE; |
| nyatla | 98:6284ce9a0476 | 331 | } |
| nyatla | 98:6284ce9a0476 | 332 | //検出位置の移動 |
| nyatla | 98:6284ce9a0476 | 333 | p += (*s) + 1; |
| nyatla | 98:6284ce9a0476 | 334 | s += (*s) + 1; |
| nyatla | 98:6284ce9a0476 | 335 | } |
| nyatla | 98:6284ce9a0476 | 336 | } |
| nyatla | 98:6284ce9a0476 | 337 | |
| nyatla | 98:6284ce9a0476 | 338 | |
| nyatla | 98:6284ce9a0476 | 339 | static NyLPC_TUInt16 NyLPC_TDnsQuestion_parse(const char* i_packet, NyLPC_TUInt16 i_packet_len, NyLPC_TInt16 i_parse_start, struct NyLPC_TDnsQuestion* o_val) |
| nyatla | 98:6284ce9a0476 | 340 | { |
| nyatla | 37:fc4b4fd6a649 | 341 | NyLPC_TUInt16 i; |
| nyatla | 98:6284ce9a0476 | 342 | //解析開始位置を計算 |
| nyatla | 98:6284ce9a0476 | 343 | NyLPC_TUInt16 qlen = 0; |
| nyatla | 98:6284ce9a0476 | 344 | for (i = i_parse_start; i<i_packet_len - 4; i++){ |
| nyatla | 98:6284ce9a0476 | 345 | switch ((NyLPC_TUInt8)(*(i_packet + i))){ |
| nyatla | 98:6284ce9a0476 | 346 | case 0x00: |
| nyatla | 98:6284ce9a0476 | 347 | qlen++; |
| nyatla | 98:6284ce9a0476 | 348 | break; |
| nyatla | 98:6284ce9a0476 | 349 | case 0xc0: |
| nyatla | 103:853ddf4a1b81 | 350 | qlen += 2; |
| nyatla | 98:6284ce9a0476 | 351 | break; |
| nyatla | 98:6284ce9a0476 | 352 | default: |
| nyatla | 98:6284ce9a0476 | 353 | qlen++; |
| nyatla | 98:6284ce9a0476 | 354 | continue; |
| nyatla | 37:fc4b4fd6a649 | 355 | } |
| nyatla | 98:6284ce9a0476 | 356 | o_val->buf = i_packet; |
| nyatla | 98:6284ce9a0476 | 357 | o_val->buf_len = i_packet_len; |
| nyatla | 98:6284ce9a0476 | 358 | o_val->qname_pos = i_parse_start; |
| nyatla | 103:853ddf4a1b81 | 359 | o_val->qtype = NyLPC_ntohs(*(NyLPC_TUInt16*)(i_packet + i_parse_start + qlen)); |
| nyatla | 103:853ddf4a1b81 | 360 | o_val->qclass = NyLPC_ntohs(*(NyLPC_TUInt16*)(i_packet + i_parse_start + qlen + sizeof(NyLPC_TUInt16))); |
| nyatla | 98:6284ce9a0476 | 361 | return qlen + 4; |
| nyatla | 37:fc4b4fd6a649 | 362 | } |
| nyatla | 37:fc4b4fd6a649 | 363 | return 0; |
| nyatla | 37:fc4b4fd6a649 | 364 | } |
| nyatla | 37:fc4b4fd6a649 | 365 | |
| nyatla | 37:fc4b4fd6a649 | 366 | /** |
| nyatla | 37:fc4b4fd6a649 | 367 | * DNSレコードのPRTフィールドとDNSラベル文字列を比較する。 |
| nyatla | 37:fc4b4fd6a649 | 368 | */ |
| nyatla | 103:853ddf4a1b81 | 369 | static NyLPC_TInt16 NyLPC_TDnsRecord_getMatchPtrIdx(const struct NyLPC_TDnsRecord* i_struct, const struct NyLPC_TDnsQuestion* question) |
| nyatla | 37:fc4b4fd6a649 | 370 | { |
| nyatla | 37:fc4b4fd6a649 | 371 | NyLPC_TInt16 i; |
| nyatla | 103:853ddf4a1b81 | 372 | for (i = 0; i<i_struct->num_of_srv; i++){ |
| nyatla | 103:853ddf4a1b81 | 373 | if (NyLPC_TDnsQuestion_isEqualName(question, NULL, i_struct->srv[i].protocol)){ |
| nyatla | 37:fc4b4fd6a649 | 374 | return i; |
| nyatla | 37:fc4b4fd6a649 | 375 | } |
| nyatla | 37:fc4b4fd6a649 | 376 | } |
| nyatla | 37:fc4b4fd6a649 | 377 | return -1; |
| nyatla | 37:fc4b4fd6a649 | 378 | } |
| nyatla | 103:853ddf4a1b81 | 379 | static NyLPC_TInt16 NyLPC_TDnsRecord_getMatchSrvIdx(const struct NyLPC_TDnsRecord* i_struct, const struct NyLPC_TDnsQuestion* question) |
| nyatla | 37:fc4b4fd6a649 | 380 | { |
| nyatla | 37:fc4b4fd6a649 | 381 | NyLPC_TInt16 i; |
| nyatla | 103:853ddf4a1b81 | 382 | for (i = 0; i<i_struct->num_of_srv; i++){ |
| nyatla | 103:853ddf4a1b81 | 383 | if (NyLPC_TDnsQuestion_isEqualName(question, i_struct->name, i_struct->srv[i].protocol)){ |
| nyatla | 37:fc4b4fd6a649 | 384 | return i; |
| nyatla | 37:fc4b4fd6a649 | 385 | } |
| nyatla | 37:fc4b4fd6a649 | 386 | } |
| nyatla | 37:fc4b4fd6a649 | 387 | return -1; |
| nyatla | 37:fc4b4fd6a649 | 388 | } |
| nyatla | 98:6284ce9a0476 | 389 | |
| nyatla | 37:fc4b4fd6a649 | 390 | |
| nyatla | 37:fc4b4fd6a649 | 391 | |
| nyatla | 37:fc4b4fd6a649 | 392 | /** |
| nyatla | 37:fc4b4fd6a649 | 393 | * '.'区切り文字列をDNS形式の[n]text[n]text\0へ変換する。 |
| nyatla | 37:fc4b4fd6a649 | 394 | * @return |
| nyatla | 37:fc4b4fd6a649 | 395 | * 変換後のデータブロックの長さin byte |
| nyatla | 37:fc4b4fd6a649 | 396 | * 終端の\0の長さを含みます。 |
| nyatla | 37:fc4b4fd6a649 | 397 | */ |
| nyatla | 103:853ddf4a1b81 | 398 | static NyLPC_TInt16 str2label(NyLPC_TChar* buf, const NyLPC_TChar* name) |
| nyatla | 37:fc4b4fd6a649 | 399 | { |
| nyatla | 37:fc4b4fd6a649 | 400 | //proto文字列の変換 |
| nyatla | 37:fc4b4fd6a649 | 401 | NyLPC_TChar* lp; |
| nyatla | 103:853ddf4a1b81 | 402 | const NyLPC_TChar* n = name; |
| nyatla | 103:853ddf4a1b81 | 403 | NyLPC_TChar* b = buf; |
| nyatla | 103:853ddf4a1b81 | 404 | while (*n != '\0'){ |
| nyatla | 103:853ddf4a1b81 | 405 | lp = b; |
| nyatla | 37:fc4b4fd6a649 | 406 | b++; |
| nyatla | 103:853ddf4a1b81 | 407 | for (; strchr(".\0", *n) == NULL;){ |
| nyatla | 103:853ddf4a1b81 | 408 | *b = *n; |
| nyatla | 37:fc4b4fd6a649 | 409 | b++; |
| nyatla | 37:fc4b4fd6a649 | 410 | n++; |
| nyatla | 37:fc4b4fd6a649 | 411 | } |
| nyatla | 103:853ddf4a1b81 | 412 | *lp = (char)(b - lp - 1); |
| nyatla | 103:853ddf4a1b81 | 413 | if (*n != '\0'){ |
| nyatla | 37:fc4b4fd6a649 | 414 | n++; |
| nyatla | 37:fc4b4fd6a649 | 415 | } |
| nyatla | 37:fc4b4fd6a649 | 416 | } |
| nyatla | 103:853ddf4a1b81 | 417 | *b = '\0'; |
| nyatla | 37:fc4b4fd6a649 | 418 | b++; |
| nyatla | 103:853ddf4a1b81 | 419 | return (NyLPC_TInt16)((int)b - (int)buf); |
| nyatla | 37:fc4b4fd6a649 | 420 | } |
| nyatla | 37:fc4b4fd6a649 | 421 | /** |
| nyatla | 102:41a5e92e0a8e | 422 | * query文字列をパケットに追記します。 |
| nyatla | 102:41a5e92e0a8e | 423 | * @return 出力したバイト数 |
| nyatla | 102:41a5e92e0a8e | 424 | */ |
| nyatla | 103:853ddf4a1b81 | 425 | static NyLPC_TInt16 query2label(char* i_packet, NyLPC_TInt16 i_spos, NyLPC_TInt16 obuflen, const struct NyLPC_TDnsQuestion* i_query) |
| nyatla | 37:fc4b4fd6a649 | 426 | { |
| nyatla | 102:41a5e92e0a8e | 427 | const char* n; |
| nyatla | 103:853ddf4a1b81 | 428 | NyLPC_TInt16 s = i_query->qname_pos; |
| nyatla | 103:853ddf4a1b81 | 429 | NyLPC_TInt16 l = 0;//出力した文字数 |
| nyatla | 103:853ddf4a1b81 | 430 | for (;;){ |
| nyatla | 103:853ddf4a1b81 | 431 | n = getExtractNamePos(i_query->buf, i_query->buf + s); |
| nyatla | 103:853ddf4a1b81 | 432 | if (n == NULL){ |
| nyatla | 103:853ddf4a1b81 | 433 | *(i_packet + i_spos + l) = 0; |
| nyatla | 103:853ddf4a1b81 | 434 | l++; |
| nyatla | 102:41a5e92e0a8e | 435 | break; |
| nyatla | 103:853ddf4a1b81 | 436 | } |
| nyatla | 103:853ddf4a1b81 | 437 | else{ |
| nyatla | 103:853ddf4a1b81 | 438 | memcpy(i_packet + i_spos + l, n, ((NyLPC_TUInt8)*n) + 1); |
| nyatla | 103:853ddf4a1b81 | 439 | l += ((NyLPC_TUInt8)*n) + 1; |
| nyatla | 103:853ddf4a1b81 | 440 | s = (NyLPC_TInt16)((int)n - (int)i_query->buf + ((NyLPC_TUInt8)*n) + 1); |
| nyatla | 103:853ddf4a1b81 | 441 | if (obuflen<i_spos + l + 1){ |
| nyatla | 102:41a5e92e0a8e | 442 | return 0; |
| nyatla | 102:41a5e92e0a8e | 443 | } |
| nyatla | 102:41a5e92e0a8e | 444 | } |
| nyatla | 37:fc4b4fd6a649 | 445 | } |
| nyatla | 103:853ddf4a1b81 | 446 | return l; |
| nyatla | 102:41a5e92e0a8e | 447 | } |
| nyatla | 102:41a5e92e0a8e | 448 | |
| nyatla | 37:fc4b4fd6a649 | 449 | |
| nyatla | 104:4f4781ecdc79 | 450 | static NyLPC_TInt16 writeSrvResourceHeader(char* i_packet, NyLPC_TInt16 i_spos, NyLPC_TInt16 buflen, const struct NyLPC_TDnsRecord* i_recode, NyLPC_TInt16 i_sid, NyLPC_TUInt16 i_type, NyLPC_TUInt16 i_class,NyLPC_TUInt16 i_ttl) |
| nyatla | 37:fc4b4fd6a649 | 451 | { |
| nyatla | 98:6284ce9a0476 | 452 | NyLPC_TInt16 s; |
| nyatla | 103:853ddf4a1b81 | 453 | NyLPC_TInt16 l = (NyLPC_TInt16)(1 + strlen(i_recode->name) + 1 + strlen(i_recode->srv[i_sid].protocol) + 1 + 5 + 1); |
| nyatla | 103:853ddf4a1b81 | 454 | if (buflen<i_spos + l + 2 + 2 + 4){ |
| nyatla | 37:fc4b4fd6a649 | 455 | return 0; |
| nyatla | 37:fc4b4fd6a649 | 456 | } |
| nyatla | 103:853ddf4a1b81 | 457 | s = str2label(i_packet + i_spos, i_recode->name) - 1; |
| nyatla | 103:853ddf4a1b81 | 458 | s += str2label(i_packet + i_spos + s, i_recode->srv[i_sid].protocol) - 1; |
| nyatla | 103:853ddf4a1b81 | 459 | s += str2label(i_packet + i_spos + s, "local"); |
| nyatla | 103:853ddf4a1b81 | 460 | l = compressName(i_packet, i_spos, s);//圧縮 |
| nyatla | 103:853ddf4a1b81 | 461 | (*(NyLPC_TUInt16*)(i_packet + l)) = NyLPC_HTONS(i_type); |
| nyatla | 103:853ddf4a1b81 | 462 | (*(NyLPC_TUInt16*)(i_packet + l + 2)) = NyLPC_HTONS(i_class); |
| nyatla | 104:4f4781ecdc79 | 463 | (*(NyLPC_TUInt32*)(i_packet + l + 4)) = NyLPC_HTONL(i_ttl); |
| nyatla | 103:853ddf4a1b81 | 464 | return l + 2 + 2 + 4; |
| nyatla | 37:fc4b4fd6a649 | 465 | } |
| nyatla | 37:fc4b4fd6a649 | 466 | |
| nyatla | 98:6284ce9a0476 | 467 | /** |
| nyatla | 103:853ddf4a1b81 | 468 | * パケットヘッダを書き込みます。 |
| nyatla | 103:853ddf4a1b81 | 469 | * @return パケットサイズ |
| nyatla | 103:853ddf4a1b81 | 470 | */ |
| nyatla | 103:853ddf4a1b81 | 471 | static NyLPC_TUInt16 setResponseHeader(char* i_packet, const struct NyLPC_TDnsHeader* i_in_dns_header, NyLPC_TUInt16 i_an_count, NyLPC_TUInt16 i_ns_count, NyLPC_TUInt16 i_ar_count) |
| nyatla | 37:fc4b4fd6a649 | 472 | { |
| nyatla | 103:853ddf4a1b81 | 473 | struct NyLPC_TDnsHeader* p = (struct NyLPC_TDnsHeader*)i_packet; |
| nyatla | 103:853ddf4a1b81 | 474 | if (i_in_dns_header != NULL){ |
| nyatla | 103:853ddf4a1b81 | 475 | memcpy(p, i_in_dns_header, sizeof(struct NyLPC_TDnsHeader)); |
| nyatla | 103:853ddf4a1b81 | 476 | p->flag = p->flag | NyLPC_HTONS(NyLPC_TDnsHeader_FLAG_MASK_QR | NyLPC_TDnsHeader_FLAG_MASK_AA); |
| nyatla | 103:853ddf4a1b81 | 477 | p->flag = p->flag & NyLPC_HTONS(~(NyLPC_TDnsHeader_FLAG_MASK_RECODE | NyLPC_TDnsHeader_FLAG_MASK_TC | NyLPC_TDnsHeader_FLAG_MASK_RA)); |
| nyatla | 37:fc4b4fd6a649 | 478 | } |
| nyatla | 103:853ddf4a1b81 | 479 | else{ |
| nyatla | 103:853ddf4a1b81 | 480 | p->flag = 0; |
| nyatla | 103:853ddf4a1b81 | 481 | p->id = 0; |
| nyatla | 103:853ddf4a1b81 | 482 | } |
| nyatla | 103:853ddf4a1b81 | 483 | p->qd = 0; |
| nyatla | 103:853ddf4a1b81 | 484 | p->an = NyLPC_HTONS(i_an_count); |
| nyatla | 103:853ddf4a1b81 | 485 | p->ns = NyLPC_HTONS(i_ns_count); |
| nyatla | 103:853ddf4a1b81 | 486 | p->ar = NyLPC_HTONS(i_ar_count); |
| nyatla | 37:fc4b4fd6a649 | 487 | return sizeof(struct NyLPC_TDnsHeader); |
| nyatla | 37:fc4b4fd6a649 | 488 | } |
| nyatla | 108:8dae2a2682e7 | 489 | static NyLPC_TUInt16 setAnnounceHeader(char* i_packet,NyLPC_TUInt16 i_an_count, NyLPC_TUInt16 i_ns_count, NyLPC_TUInt16 i_ar_count) |
| nyatla | 108:8dae2a2682e7 | 490 | { |
| nyatla | 108:8dae2a2682e7 | 491 | struct NyLPC_TDnsHeader* p = (struct NyLPC_TDnsHeader*)i_packet; |
| nyatla | 108:8dae2a2682e7 | 492 | p->id = 0; |
| nyatla | 108:8dae2a2682e7 | 493 | p->flag = NyLPC_HTONS(NyLPC_TDnsHeader_FLAG_MASK_QR | NyLPC_TDnsHeader_FLAG_MASK_AA); |
| nyatla | 108:8dae2a2682e7 | 494 | p->qd = 0; |
| nyatla | 108:8dae2a2682e7 | 495 | p->an = NyLPC_HTONS(i_an_count); |
| nyatla | 108:8dae2a2682e7 | 496 | p->ns = NyLPC_HTONS(i_ns_count); |
| nyatla | 108:8dae2a2682e7 | 497 | p->ar = NyLPC_HTONS(i_ar_count); |
| nyatla | 108:8dae2a2682e7 | 498 | return sizeof(struct NyLPC_TDnsHeader); |
| nyatla | 108:8dae2a2682e7 | 499 | } |
| nyatla | 104:4f4781ecdc79 | 500 | |
| nyatla | 104:4f4781ecdc79 | 501 | static NyLPC_TInt16 writeARecordData(char* i_packet, NyLPC_TInt16 i_spos,NyLPC_TInt16 obuflen,const struct NyLPC_TIPv4Addr* ip) |
| nyatla | 37:fc4b4fd6a649 | 502 | { |
| nyatla | 104:4f4781ecdc79 | 503 | NyLPC_TInt16 l=i_spos; |
| nyatla | 103:853ddf4a1b81 | 504 | (*(NyLPC_TUInt16*)(i_packet + l)) = NyLPC_HTONS(NyLPC_TDnsQuestion_QTYPR_A); |
| nyatla | 103:853ddf4a1b81 | 505 | (*(NyLPC_TUInt16*)(i_packet + l + 2)) = NyLPC_HTONS(NyLPC_TDnsQuestion_QCLASS_IN | NyLPC_TDnsQuestion_QCLASS_CACHE_FLUSH); |
| nyatla | 104:4f4781ecdc79 | 506 | (*(NyLPC_TUInt32*)(i_packet + l + 4)) = NyLPC_HTONL(NyLPC_TcMDns_RES_TTL); |
| nyatla | 103:853ddf4a1b81 | 507 | l += 2 + 2 + 4; |
| nyatla | 37:fc4b4fd6a649 | 508 | //A record header |
| nyatla | 103:853ddf4a1b81 | 509 | if (obuflen<l + 6){ |
| nyatla | 37:fc4b4fd6a649 | 510 | return 0; |
| nyatla | 37:fc4b4fd6a649 | 511 | } |
| nyatla | 37:fc4b4fd6a649 | 512 | //Aレコードを書く |
| nyatla | 37:fc4b4fd6a649 | 513 | //IPADDR |
| nyatla | 103:853ddf4a1b81 | 514 | (*(NyLPC_TUInt16*)(i_packet + l)) = NyLPC_HTONS(4); |
| nyatla | 103:853ddf4a1b81 | 515 | (*(NyLPC_TUInt32*)(i_packet + l + 2)) = ip->v; |
| nyatla | 104:4f4781ecdc79 | 516 | return l + 6;//NEXT_SPOS |
| nyatla | 104:4f4781ecdc79 | 517 | } |
| nyatla | 104:4f4781ecdc79 | 518 | /** |
| nyatla | 104:4f4781ecdc79 | 519 | * ドメイン名からAレコードレスポンスを書きだす。 |
| nyatla | 104:4f4781ecdc79 | 520 | */ |
| nyatla | 104:4f4781ecdc79 | 521 | static NyLPC_TInt16 writeARecord(char* i_packet, NyLPC_TInt16 i_spos, NyLPC_TInt16 obuflen, const NyLPC_TChar* i_name, const struct NyLPC_TIPv4Addr* ip) |
| nyatla | 104:4f4781ecdc79 | 522 | { |
| nyatla | 104:4f4781ecdc79 | 523 | //AnswerはAレコードのみ |
| nyatla | 104:4f4781ecdc79 | 524 | NyLPC_TInt16 s = 1 + (NyLPC_TInt16)strlen(i_name) + 1 + 5 + 1; |
| nyatla | 104:4f4781ecdc79 | 525 | if (obuflen<i_spos + s + 4 + 4){ |
| nyatla | 104:4f4781ecdc79 | 526 | return 0; |
| nyatla | 104:4f4781ecdc79 | 527 | } |
| nyatla | 104:4f4781ecdc79 | 528 | s = str2label(i_packet + i_spos, i_name) - 1; |
| nyatla | 104:4f4781ecdc79 | 529 | s += str2label(i_packet + i_spos + s, "local"); |
| nyatla | 104:4f4781ecdc79 | 530 | //レコード圧縮 |
| nyatla | 104:4f4781ecdc79 | 531 | s = compressName(i_packet, i_spos, s); |
| nyatla | 104:4f4781ecdc79 | 532 | return writeARecordData(i_packet,s,obuflen,ip); |
| nyatla | 37:fc4b4fd6a649 | 533 | } |
| nyatla | 102:41a5e92e0a8e | 534 | |
| nyatla | 101:5022828ace54 | 535 | /** |
| nyatla | 103:853ddf4a1b81 | 536 | * AレコードクエリからAレコードレスポンスを書きだす。 |
| nyatla | 103:853ddf4a1b81 | 537 | */ |
| nyatla | 103:853ddf4a1b81 | 538 | static NyLPC_TInt16 writeARecordByQuery(char* i_packet, NyLPC_TInt16 i_spos, NyLPC_TInt16 obuflen, const struct NyLPC_TDnsQuestion* i_query, const struct NyLPC_TIPv4Addr* ip) |
| nyatla | 101:5022828ace54 | 539 | { |
| nyatla | 104:4f4781ecdc79 | 540 | NyLPC_TInt16 s = query2label(i_packet, i_spos, obuflen, i_query); |
| nyatla | 103:853ddf4a1b81 | 541 | if (s == 0){ |
| nyatla | 102:41a5e92e0a8e | 542 | return 0; |
| nyatla | 101:5022828ace54 | 543 | } |
| nyatla | 101:5022828ace54 | 544 | //レコード圧縮 |
| nyatla | 104:4f4781ecdc79 | 545 | s = compressName(i_packet, i_spos, s); |
| nyatla | 104:4f4781ecdc79 | 546 | return writeARecordData(i_packet,s,obuflen,ip); |
| nyatla | 101:5022828ace54 | 547 | } |
| nyatla | 98:6284ce9a0476 | 548 | |
| nyatla | 104:4f4781ecdc79 | 549 | /* |
| nyatla | 104:4f4781ecdc79 | 550 | static NyLPC_TInt16 writeAAAARecordByQueryData(char* i_packet, NyLPC_TInt16 i_spos,NyLPC_TInt16 obuflen,const struct NyLPC_TIPv4Addr* ip) |
| nyatla | 102:41a5e92e0a8e | 551 | { |
| nyatla | 104:4f4781ecdc79 | 552 | NyLPC_TInt16 l=i_spos; |
| nyatla | 103:853ddf4a1b81 | 553 | (*(NyLPC_TUInt16*)(i_packet + l)) = NyLPC_HTONS(NyLPC_TDnsQuestion_QTYPR_AAAA); |
| nyatla | 103:853ddf4a1b81 | 554 | (*(NyLPC_TUInt16*)(i_packet + l + 2)) = NyLPC_HTONS(NyLPC_TDnsQuestion_QCLASS_IN | NyLPC_TDnsQuestion_QCLASS_CACHE_FLUSH); |
| nyatla | 104:4f4781ecdc79 | 555 | (*(NyLPC_TUInt32*)(i_packet + l + 4)) = NyLPC_HTONL(NyLPC_TcMDns_RES_TTL); |
| nyatla | 103:853ddf4a1b81 | 556 | l += 2 + 2 + 4; |
| nyatla | 102:41a5e92e0a8e | 557 | //A record header |
| nyatla | 103:853ddf4a1b81 | 558 | if (obuflen<l + 2 + 16){ |
| nyatla | 103:853ddf4a1b81 | 559 | return 0; |
| nyatla | 103:853ddf4a1b81 | 560 | } |
| nyatla | 103:853ddf4a1b81 | 561 | //AAAAレコードを書く |
| nyatla | 103:853ddf4a1b81 | 562 | //IPADDR |
| nyatla | 103:853ddf4a1b81 | 563 | (*(NyLPC_TUInt16*)(i_packet + l)) = NyLPC_HTONS(16); |
| nyatla | 103:853ddf4a1b81 | 564 | memset(i_packet + l + 2, 0, 10); |
| nyatla | 103:853ddf4a1b81 | 565 | (*(NyLPC_TUInt16*)(i_packet + l + 2 + 10)) = 0xffff; |
| nyatla | 103:853ddf4a1b81 | 566 | (*(NyLPC_TUInt32*)(i_packet + l + 2 + 12)) = ip->v; |
| nyatla | 103:853ddf4a1b81 | 567 | return l + 2 + 16; |
| nyatla | 104:4f4781ecdc79 | 568 | }*/ |
| nyatla | 104:4f4781ecdc79 | 569 | |
| nyatla | 104:4f4781ecdc79 | 570 | |
| nyatla | 103:853ddf4a1b81 | 571 | /** |
| nyatla | 103:853ddf4a1b81 | 572 | * AレコードクエリからAレコードレスポンスを書きだす。 |
| nyatla | 104:4f4781ecdc79 | 573 | *//* |
| nyatla | 104:4f4781ecdc79 | 574 | static NyLPC_TInt16 writeAAAARecordByQuery(char* i_packet, NyLPC_TInt16 i_spos, NyLPC_TInt16 obuflen, const struct NyLPC_TDnsQuestion* i_query, const struct NyLPC_TIPv4Addr* ip) |
| nyatla | 104:4f4781ecdc79 | 575 | { |
| nyatla | 104:4f4781ecdc79 | 576 | NyLPC_TInt16 s = query2label(i_packet, i_spos, obuflen, i_query); |
| nyatla | 104:4f4781ecdc79 | 577 | if (s == 0){ |
| nyatla | 104:4f4781ecdc79 | 578 | return 0; |
| nyatla | 104:4f4781ecdc79 | 579 | } |
| nyatla | 104:4f4781ecdc79 | 580 | //レコード圧縮 |
| nyatla | 104:4f4781ecdc79 | 581 | s = compressName(i_packet, i_spos, s); |
| nyatla | 104:4f4781ecdc79 | 582 | return writeAAAARecordByQueryData(i_packet,s,obuflen,ip); |
| nyatla | 104:4f4781ecdc79 | 583 | }*/ |
| nyatla | 104:4f4781ecdc79 | 584 | /** |
| nyatla | 104:4f4781ecdc79 | 585 | * AレコードクエリからAレコードレスポンスを書きだす。 |
| nyatla | 104:4f4781ecdc79 | 586 | *//* |
| nyatla | 103:853ddf4a1b81 | 587 | static NyLPC_TInt16 writeAAAARecord(char* i_packet, NyLPC_TInt16 i_spos, NyLPC_TInt16 obuflen, const NyLPC_TChar* i_name, const struct NyLPC_TIPv4Addr* ip) |
| nyatla | 103:853ddf4a1b81 | 588 | { |
| nyatla | 104:4f4781ecdc79 | 589 | NyLPC_TInt16 s = 1 + (NyLPC_TInt16)strlen(i_name) + 1 + 5 + 1; |
| nyatla | 104:4f4781ecdc79 | 590 | if (obuflen<i_spos + s + 4 + 4){ |
| nyatla | 103:853ddf4a1b81 | 591 | return 0; |
| nyatla | 103:853ddf4a1b81 | 592 | } |
| nyatla | 103:853ddf4a1b81 | 593 | s = str2label(i_packet + i_spos, i_name) - 1; |
| nyatla | 103:853ddf4a1b81 | 594 | s += str2label(i_packet + i_spos + s, "local"); |
| nyatla | 104:4f4781ecdc79 | 595 | //レコード圧縮 |
| nyatla | 104:4f4781ecdc79 | 596 | s = compressName(i_packet, i_spos, s); |
| nyatla | 104:4f4781ecdc79 | 597 | return writeAAAARecordByQueryData(i_packet,s,obuflen,ip); |
| nyatla | 104:4f4781ecdc79 | 598 | }*/ |
| nyatla | 103:853ddf4a1b81 | 599 | |
| nyatla | 104:4f4781ecdc79 | 600 | static NyLPC_TInt16 writeNSECRecordData(char* i_packet, NyLPC_TInt16 i_spos, NyLPC_TInt16 obuflen,NyLPC_TInt16 i_next_domain) |
| nyatla | 102:41a5e92e0a8e | 601 | { |
| nyatla | 104:4f4781ecdc79 | 602 | NyLPC_TInt16 l=i_spos; |
| nyatla | 103:853ddf4a1b81 | 603 | (*(NyLPC_TUInt16*)(i_packet + l)) = NyLPC_HTONS(NyLPC_TDnsQuestion_QTYPR_NSEC); |
| nyatla | 103:853ddf4a1b81 | 604 | (*(NyLPC_TUInt16*)(i_packet + l + 2)) = NyLPC_HTONS(NyLPC_TDnsQuestion_QCLASS_IN | NyLPC_TDnsQuestion_QCLASS_CACHE_FLUSH); |
| nyatla | 104:4f4781ecdc79 | 605 | (*(NyLPC_TUInt32*)(i_packet + l + 4)) = NyLPC_HTONL(NyLPC_TcMDns_RES_TTL); |
| nyatla | 103:853ddf4a1b81 | 606 | l += 2 + 2 + 4; |
| nyatla | 102:41a5e92e0a8e | 607 | //A record header |
| nyatla | 103:853ddf4a1b81 | 608 | if (obuflen<l + 2 + 2 + 6){ |
| nyatla | 102:41a5e92e0a8e | 609 | return 0; |
| nyatla | 102:41a5e92e0a8e | 610 | } |
| nyatla | 102:41a5e92e0a8e | 611 | //NSECレコードを書く |
| nyatla | 103:853ddf4a1b81 | 612 | *((NyLPC_TUInt16*)(i_packet + l)) = NyLPC_HTONS(2 + 6); |
| nyatla | 103:853ddf4a1b81 | 613 | l += 2; |
| nyatla | 103:853ddf4a1b81 | 614 | *(i_packet + l) = 0xc0; |
| nyatla | 104:4f4781ecdc79 | 615 | *(i_packet + l + 1) = (NyLPC_TUInt8)i_next_domain; |
| nyatla | 103:853ddf4a1b81 | 616 | l += 2; |
| nyatla | 103:853ddf4a1b81 | 617 | memcpy(i_packet + l, "\x00\x04\x00\x00\x00\x08", 6); |
| nyatla | 109:18f12ac01097 | 618 | return l + 6; |
| nyatla | 104:4f4781ecdc79 | 619 | } |
| nyatla | 104:4f4781ecdc79 | 620 | /** |
| nyatla | 104:4f4781ecdc79 | 621 | * NSECレコードレスポンスを書きだす。 |
| nyatla | 104:4f4781ecdc79 | 622 | * IPv6わからんし。 |
| nyatla | 104:4f4781ecdc79 | 623 | */ |
| nyatla | 104:4f4781ecdc79 | 624 | static NyLPC_TInt16 writeNSECRecord(char* i_packet, NyLPC_TInt16 i_spos, NyLPC_TInt16 obuflen, const NyLPC_TChar* i_name) |
| nyatla | 104:4f4781ecdc79 | 625 | { |
| nyatla | 104:4f4781ecdc79 | 626 | //AnswerはAレコードのみ |
| nyatla | 104:4f4781ecdc79 | 627 | NyLPC_TInt16 s = 1 + (NyLPC_TInt16)strlen(i_name) + 1 + 5 + 1; |
| nyatla | 104:4f4781ecdc79 | 628 | if (obuflen<i_spos + s + 4 + 4){ |
| nyatla | 104:4f4781ecdc79 | 629 | return 0; |
| nyatla | 104:4f4781ecdc79 | 630 | } |
| nyatla | 104:4f4781ecdc79 | 631 | s = str2label(i_packet + i_spos, i_name) - 1; |
| nyatla | 104:4f4781ecdc79 | 632 | s += str2label(i_packet + i_spos + s, "local"); |
| nyatla | 104:4f4781ecdc79 | 633 | //レコード圧縮 |
| nyatla | 104:4f4781ecdc79 | 634 | s = i_spos + s;//compressName(i_packet,i_spos,s); |
| nyatla | 104:4f4781ecdc79 | 635 | return writeNSECRecordData(i_packet,s,obuflen,i_spos); |
| nyatla | 102:41a5e92e0a8e | 636 | } |
| nyatla | 102:41a5e92e0a8e | 637 | /** |
| nyatla | 103:853ddf4a1b81 | 638 | * NSECレコードレスポンスを書きだす。 |
| nyatla | 103:853ddf4a1b81 | 639 | * IPv6わからんし。 |
| nyatla | 103:853ddf4a1b81 | 640 | */ |
| nyatla | 103:853ddf4a1b81 | 641 | static NyLPC_TInt16 writeNSECRecordByQuery(char* i_packet, NyLPC_TInt16 i_spos, NyLPC_TInt16 obuflen, const struct NyLPC_TDnsQuestion* i_query) |
| nyatla | 102:41a5e92e0a8e | 642 | { |
| nyatla | 102:41a5e92e0a8e | 643 | NyLPC_TInt16 s; |
| nyatla | 102:41a5e92e0a8e | 644 | //AnswerはAレコードのみ |
| nyatla | 103:853ddf4a1b81 | 645 | s = query2label(i_packet, i_spos, obuflen, i_query); |
| nyatla | 103:853ddf4a1b81 | 646 | if (s == 0){ |
| nyatla | 102:41a5e92e0a8e | 647 | return 0; |
| nyatla | 102:41a5e92e0a8e | 648 | } |
| nyatla | 102:41a5e92e0a8e | 649 | |
| nyatla | 102:41a5e92e0a8e | 650 | //レコード圧縮 |
| nyatla | 104:4f4781ecdc79 | 651 | s = i_spos + s; |
| nyatla | 103:853ddf4a1b81 | 652 | // l=compressName(i_packet,i_spos,s); |
| nyatla | 104:4f4781ecdc79 | 653 | return writeNSECRecordData(i_packet,s,obuflen,i_spos); |
| nyatla | 102:41a5e92e0a8e | 654 | } |
| nyatla | 104:4f4781ecdc79 | 655 | |
| nyatla | 106:dc0d65dbde48 | 656 | static NyLPC_TInt16 writeSdPtrRecord(const struct NyLPC_TMDnsServiceRecord* i_srvlec, char* i_packet, NyLPC_TInt16 i_spos, NyLPC_TInt16 obuflen) |
| nyatla | 37:fc4b4fd6a649 | 657 | { |
| nyatla | 103:853ddf4a1b81 | 658 | NyLPC_TInt16 l, s; |
| nyatla | 106:dc0d65dbde48 | 659 | NyLPC_TUInt16* rlen; |
| nyatla | 37:fc4b4fd6a649 | 660 | //Header |
| nyatla | 103:853ddf4a1b81 | 661 | // s=(NyLPC_TInt16)*(i_question->buf+i_question->qname_pos); |
| nyatla | 37:fc4b4fd6a649 | 662 | //Headerの長さチェック |
| nyatla | 103:853ddf4a1b81 | 663 | if (obuflen<i_spos + 30 + 2 + 2 + 4){ |
| nyatla | 37:fc4b4fd6a649 | 664 | return 0; |
| nyatla | 37:fc4b4fd6a649 | 665 | } |
| nyatla | 37:fc4b4fd6a649 | 666 | //Header書込み |
| nyatla | 103:853ddf4a1b81 | 667 | memcpy(i_packet + i_spos, "\x09_services\x07_dns-sd\x04_udp\x05local\x00", 30); |
| nyatla | 103:853ddf4a1b81 | 668 | s = compressName(i_packet, i_spos, 30); |
| nyatla | 103:853ddf4a1b81 | 669 | (*(NyLPC_TUInt16*)(i_packet + s)) = NyLPC_HTONS(NyLPC_TDnsQuestion_QTYPR_PTR); |
| nyatla | 103:853ddf4a1b81 | 670 | (*(NyLPC_TUInt16*)(i_packet + s + 2)) = NyLPC_HTONS(NyLPC_TDnsQuestion_QCLASS_IN); |
| nyatla | 104:4f4781ecdc79 | 671 | (*(NyLPC_TUInt32*)(i_packet + s + 4)) = NyLPC_HTONL(NyLPC_TcMDns_STD_TTL); |
| nyatla | 103:853ddf4a1b81 | 672 | l = s + 2 + 2 + 4; |
| nyatla | 37:fc4b4fd6a649 | 673 | |
| nyatla | 37:fc4b4fd6a649 | 674 | //Resourceの書込み |
| nyatla | 103:853ddf4a1b81 | 675 | s = (NyLPC_TInt16)(1 + strlen(i_srvlec->protocol) + 1 + 5 + 1);//逆引き文字列の長さ(デリミタ×3+1) |
| nyatla | 103:853ddf4a1b81 | 676 | if (obuflen<s + l + 2){ |
| nyatla | 37:fc4b4fd6a649 | 677 | return 0; |
| nyatla | 37:fc4b4fd6a649 | 678 | } |
| nyatla | 106:dc0d65dbde48 | 679 | rlen=(NyLPC_TUInt16*)(i_packet + l); |
| nyatla | 103:853ddf4a1b81 | 680 | l += 2; |
| nyatla | 103:853ddf4a1b81 | 681 | s = str2label(i_packet + l, i_srvlec->protocol) - 1; |
| nyatla | 103:853ddf4a1b81 | 682 | s += str2label(i_packet + l + s, "local"); |
| nyatla | 103:853ddf4a1b81 | 683 | s = compressName(i_packet, l, s);//圧縮 |
| nyatla | 106:dc0d65dbde48 | 684 | *rlen = NyLPC_ntohs(s - l); |
| nyatla | 98:6284ce9a0476 | 685 | return s; |
| nyatla | 37:fc4b4fd6a649 | 686 | } |
| nyatla | 104:4f4781ecdc79 | 687 | |
| nyatla | 103:853ddf4a1b81 | 688 | static NyLPC_TInt16 writePtrRecord(const struct NyLPC_TDnsRecord* i_recode, NyLPC_TInt16 i_sid, char* i_packet, NyLPC_TInt16 i_spos, NyLPC_TInt16 obuflen) |
| nyatla | 37:fc4b4fd6a649 | 689 | { |
| nyatla | 103:853ddf4a1b81 | 690 | NyLPC_TInt16 l, s; |
| nyatla | 37:fc4b4fd6a649 | 691 | NyLPC_TUInt16* rlen; |
| nyatla | 37:fc4b4fd6a649 | 692 | //Header:開始文字数(1)+プレフィクス(n)+終端(1)+local(5)+1 |
| nyatla | 103:853ddf4a1b81 | 693 | s = (NyLPC_TInt16)(1 + strlen(i_recode->srv[i_sid].protocol) + 1 + 5 + 1); |
| nyatla | 37:fc4b4fd6a649 | 694 | //Headerの長さチェック |
| nyatla | 103:853ddf4a1b81 | 695 | if (obuflen<i_spos + s + 2 + 2 + 4){ |
| nyatla | 37:fc4b4fd6a649 | 696 | return 0; |
| nyatla | 37:fc4b4fd6a649 | 697 | } |
| nyatla | 37:fc4b4fd6a649 | 698 | //Header書込み |
| nyatla | 103:853ddf4a1b81 | 699 | s = str2label(i_packet + i_spos, i_recode->srv[i_sid].protocol) - 1; |
| nyatla | 103:853ddf4a1b81 | 700 | s += str2label(i_packet + i_spos + s, "local"); |
| nyatla | 103:853ddf4a1b81 | 701 | s = compressName(i_packet, i_spos, s); |
| nyatla | 103:853ddf4a1b81 | 702 | (*(NyLPC_TUInt16*)(i_packet + s)) = NyLPC_HTONS(NyLPC_TDnsQuestion_QTYPR_PTR); |
| nyatla | 103:853ddf4a1b81 | 703 | (*(NyLPC_TUInt16*)(i_packet + s + 2)) = NyLPC_HTONS(NyLPC_TDnsQuestion_QCLASS_IN); |
| nyatla | 104:4f4781ecdc79 | 704 | (*(NyLPC_TUInt32*)(i_packet + s + 4)) = NyLPC_HTONL(NyLPC_TcMDns_STD_TTL); |
| nyatla | 103:853ddf4a1b81 | 705 | l = s + 2 + 2 + 4; |
| nyatla | 37:fc4b4fd6a649 | 706 | |
| nyatla | 37:fc4b4fd6a649 | 707 | //Resourceの書込み |
| nyatla | 103:853ddf4a1b81 | 708 | s = (NyLPC_TInt16)(1 + strlen(i_recode->name) + 1 + strlen(i_recode->srv[i_sid].protocol) + 1 + 5 + 1);//逆引き文字列の長さ(デリミタ×3+1) |
| nyatla | 103:853ddf4a1b81 | 709 | if (obuflen<s + l + 2){ |
| nyatla | 37:fc4b4fd6a649 | 710 | return 0; |
| nyatla | 37:fc4b4fd6a649 | 711 | } |
| nyatla | 103:853ddf4a1b81 | 712 | rlen = (NyLPC_TUInt16*)(i_packet + l); |
| nyatla | 103:853ddf4a1b81 | 713 | l += 2; |
| nyatla | 103:853ddf4a1b81 | 714 | s = str2label(i_packet + l, i_recode->name) - 1; |
| nyatla | 103:853ddf4a1b81 | 715 | s += str2label(i_packet + l + s, i_recode->srv[i_sid].protocol) - 1; |
| nyatla | 103:853ddf4a1b81 | 716 | s += str2label(i_packet + l + s, "local"); |
| nyatla | 103:853ddf4a1b81 | 717 | s = compressName(i_packet, l, s);//圧縮 |
| nyatla | 103:853ddf4a1b81 | 718 | (*rlen) = NyLPC_ntohs(s - l); |
| nyatla | 98:6284ce9a0476 | 719 | return s; |
| nyatla | 37:fc4b4fd6a649 | 720 | } |
| nyatla | 37:fc4b4fd6a649 | 721 | |
| nyatla | 103:853ddf4a1b81 | 722 | static NyLPC_TInt16 writeSRVRecord(NyLPC_TcMDnsServer_t* i_inst, NyLPC_TInt16 i_sid, char* i_packet, NyLPC_TUInt16 i_spos, NyLPC_TInt16 obuflen) |
| nyatla | 37:fc4b4fd6a649 | 723 | { |
| nyatla | 103:853ddf4a1b81 | 724 | NyLPC_TInt16 l, s; |
| nyatla | 37:fc4b4fd6a649 | 725 | NyLPC_TUInt16* rlen; |
| nyatla | 37:fc4b4fd6a649 | 726 | |
| nyatla | 37:fc4b4fd6a649 | 727 | //SRV Record |
| nyatla | 104:4f4781ecdc79 | 728 | s = writeSrvResourceHeader(i_packet, i_spos, obuflen, i_inst->_ref_record, i_sid, NyLPC_TDnsQuestion_QTYPR_SRV, NyLPC_TDnsQuestion_QCLASS_IN | NyLPC_TDnsQuestion_QCLASS_CACHE_FLUSH,NyLPC_TcMDns_RES_TTL); |
| nyatla | 103:853ddf4a1b81 | 729 | if (s == 0){ |
| nyatla | 37:fc4b4fd6a649 | 730 | return 0; |
| nyatla | 37:fc4b4fd6a649 | 731 | } |
| nyatla | 37:fc4b4fd6a649 | 732 | |
| nyatla | 103:853ddf4a1b81 | 733 | l = (NyLPC_TInt16)(1 + strlen(i_inst->_ref_record->a) + 1 + 5 + 1);//逆引き文字列の長さ(デリミタ×3+1) |
| nyatla | 103:853ddf4a1b81 | 734 | if (obuflen<s + 8 + l){ |
| nyatla | 37:fc4b4fd6a649 | 735 | return 0; |
| nyatla | 37:fc4b4fd6a649 | 736 | } |
| nyatla | 37:fc4b4fd6a649 | 737 | //IPADDR |
| nyatla | 103:853ddf4a1b81 | 738 | rlen = (NyLPC_TUInt16*)(i_packet + s); |
| nyatla | 103:853ddf4a1b81 | 739 | (*(NyLPC_TUInt16*)(i_packet + s + 2)) = NyLPC_HTONS(0);//Priority |
| nyatla | 103:853ddf4a1b81 | 740 | (*(NyLPC_TUInt16*)(i_packet + s + 4)) = NyLPC_HTONS(0);//Weight |
| nyatla | 103:853ddf4a1b81 | 741 | (*(NyLPC_TUInt16*)(i_packet + s + 6)) = NyLPC_HTONS(i_inst->_ref_record->srv[i_sid].port);//PORT |
| nyatla | 103:853ddf4a1b81 | 742 | l = 4 * 2 + s; |
| nyatla | 103:853ddf4a1b81 | 743 | s = str2label(i_packet + l, i_inst->_ref_record->a) - 1; |
| nyatla | 103:853ddf4a1b81 | 744 | s += str2label(i_packet + l + s, "local"); |
| nyatla | 103:853ddf4a1b81 | 745 | s = compressName(i_packet, l, s);//圧縮 |
| nyatla | 103:853ddf4a1b81 | 746 | (*rlen) = NyLPC_HTONS(2 + 2 + 2 + (s - l)); |
| nyatla | 98:6284ce9a0476 | 747 | return s; |
| nyatla | 37:fc4b4fd6a649 | 748 | } |
| nyatla | 103:853ddf4a1b81 | 749 | static NyLPC_TInt16 writeTXTRecord(NyLPC_TcMDnsServer_t* i_inst, NyLPC_TInt16 i_sid, char* i_packet, NyLPC_TInt16 i_spos, NyLPC_TInt16 obuflen) |
| nyatla | 37:fc4b4fd6a649 | 750 | { |
| nyatla | 37:fc4b4fd6a649 | 751 | NyLPC_TInt16 ret; |
| nyatla | 37:fc4b4fd6a649 | 752 | NyLPC_TInt16 l; |
| nyatla | 37:fc4b4fd6a649 | 753 | //Answer |
| nyatla | 104:4f4781ecdc79 | 754 | ret = writeSrvResourceHeader(i_packet, i_spos, obuflen, i_inst->_ref_record, i_sid, NyLPC_TDnsQuestion_QTYPR_TXT, NyLPC_TDnsQuestion_QCLASS_IN | NyLPC_TDnsQuestion_QCLASS_CACHE_FLUSH,NyLPC_TcMDns_STD_TTL); |
| nyatla | 103:853ddf4a1b81 | 755 | if (ret == 0){ |
| nyatla | 37:fc4b4fd6a649 | 756 | return 0; |
| nyatla | 37:fc4b4fd6a649 | 757 | } |
| nyatla | 37:fc4b4fd6a649 | 758 | //name.proto.localを返す。 |
| nyatla | 103:853ddf4a1b81 | 759 | if (obuflen<ret + 2){ |
| nyatla | 37:fc4b4fd6a649 | 760 | return 0; |
| nyatla | 37:fc4b4fd6a649 | 761 | } |
| nyatla | 103:853ddf4a1b81 | 762 | (*(NyLPC_TUInt16*)(i_packet + ret)) = NyLPC_ntohs(0); |
| nyatla | 37:fc4b4fd6a649 | 763 | //proto.name.local. |
| nyatla | 103:853ddf4a1b81 | 764 | l = ret + 2; |
| nyatla | 37:fc4b4fd6a649 | 765 | return l; |
| nyatla | 37:fc4b4fd6a649 | 766 | } |
| nyatla | 37:fc4b4fd6a649 | 767 | |
| nyatla | 37:fc4b4fd6a649 | 768 | |
| nyatla | 37:fc4b4fd6a649 | 769 | |
| nyatla | 37:fc4b4fd6a649 | 770 | |
| nyatla | 37:fc4b4fd6a649 | 771 | |
| nyatla | 37:fc4b4fd6a649 | 772 | |
| nyatla | 37:fc4b4fd6a649 | 773 | static void sendAnnounse(NyLPC_TcMDnsServer_t* i_inst) |
| nyatla | 37:fc4b4fd6a649 | 774 | { |
| nyatla | 37:fc4b4fd6a649 | 775 | char* obuf; |
| nyatla | 37:fc4b4fd6a649 | 776 | NyLPC_TUInt16 obuflen; |
| nyatla | 98:6284ce9a0476 | 777 | NyLPC_TUInt16 l; |
| nyatla | 106:dc0d65dbde48 | 778 | int i,i2; |
| nyatla | 37:fc4b4fd6a649 | 779 | for(i2=0;i2<i_inst->_ref_record->num_of_srv;i2++){ |
| nyatla | 37:fc4b4fd6a649 | 780 | //Bufferの取得 |
| nyatla | 109:18f12ac01097 | 781 | obuf=NyLPC_iUdpSocket_allocSendBuf(i_inst->_socket,512,&obuflen,TIMEOUT_IN_MS); |
| nyatla | 37:fc4b4fd6a649 | 782 | if(obuf==NULL){ |
| nyatla | 37:fc4b4fd6a649 | 783 | return; |
| nyatla | 37:fc4b4fd6a649 | 784 | } |
| nyatla | 108:8dae2a2682e7 | 785 | l=setAnnounceHeader(obuf,1+i_inst->_ref_record->num_of_srv+4,0,0); |
| nyatla | 106:dc0d65dbde48 | 786 | //<Answer /> |
| nyatla | 106:dc0d65dbde48 | 787 | //PTR |
| nyatla | 98:6284ce9a0476 | 788 | l=writePtrRecord(i_inst->_ref_record,i2,obuf,l,obuflen); |
| nyatla | 106:dc0d65dbde48 | 789 | //SD-PTR |
| nyatla | 98:6284ce9a0476 | 790 | if(l<=0){ |
| nyatla | 37:fc4b4fd6a649 | 791 | NyLPC_OnErrorGoto(ERROR); |
| nyatla | 37:fc4b4fd6a649 | 792 | } |
| nyatla | 106:dc0d65dbde48 | 793 | for (i = 0; i<i_inst->_ref_record->num_of_srv; i++){ |
| nyatla | 106:dc0d65dbde48 | 794 | l = writeSdPtrRecord(&(i_inst->_ref_record->srv[i]), obuf, l, obuflen); |
| nyatla | 106:dc0d65dbde48 | 795 | if (l <= 0){ |
| nyatla | 106:dc0d65dbde48 | 796 | NyLPC_OnErrorGoto(ERROR); |
| nyatla | 106:dc0d65dbde48 | 797 | } |
| nyatla | 106:dc0d65dbde48 | 798 | } |
| nyatla | 106:dc0d65dbde48 | 799 | //<Additional/> |
| nyatla | 102:41a5e92e0a8e | 800 | //SRV |
| nyatla | 98:6284ce9a0476 | 801 | l=writeSRVRecord(i_inst,i2,obuf,l,obuflen); |
| nyatla | 98:6284ce9a0476 | 802 | if(l<=0){ |
| nyatla | 37:fc4b4fd6a649 | 803 | NyLPC_OnErrorGoto(ERROR); |
| nyatla | 37:fc4b4fd6a649 | 804 | } |
| nyatla | 102:41a5e92e0a8e | 805 | //TXT |
| nyatla | 98:6284ce9a0476 | 806 | l=writeTXTRecord(i_inst,i2,obuf,l,obuflen); |
| nyatla | 98:6284ce9a0476 | 807 | if(l<=0){ |
| nyatla | 37:fc4b4fd6a649 | 808 | NyLPC_OnErrorGoto(ERROR); |
| nyatla | 37:fc4b4fd6a649 | 809 | } |
| nyatla | 37:fc4b4fd6a649 | 810 | //Aレコード |
| nyatla | 109:18f12ac01097 | 811 | l=writeARecord(obuf,l,obuflen,i_inst->_ref_record->a,NyLPC_iUdpSocket_getSockIP(i_inst->_socket)); |
| nyatla | 98:6284ce9a0476 | 812 | if(l<=0){ |
| nyatla | 37:fc4b4fd6a649 | 813 | NyLPC_OnErrorGoto(ERROR); |
| nyatla | 37:fc4b4fd6a649 | 814 | } |
| nyatla | 104:4f4781ecdc79 | 815 | // //AAAAレコード |
| nyatla | 104:4f4781ecdc79 | 816 | // l=writeAAAARecord(obuf,l,obuflen,i_inst->_ref_record->a,&(i_inst->_super.uip_udp_conn.lipaddr)); |
| nyatla | 104:4f4781ecdc79 | 817 | // if(l<=0){ |
| nyatla | 104:4f4781ecdc79 | 818 | // NyLPC_OnErrorGoto(ERROR); |
| nyatla | 104:4f4781ecdc79 | 819 | // } |
| nyatla | 102:41a5e92e0a8e | 820 | //NSEC |
| nyatla | 102:41a5e92e0a8e | 821 | l=writeNSECRecord(obuf,l,obuflen,i_inst->_ref_record->a); |
| nyatla | 102:41a5e92e0a8e | 822 | if(l<=0){ |
| nyatla | 102:41a5e92e0a8e | 823 | NyLPC_OnErrorGoto(ERROR); |
| nyatla | 102:41a5e92e0a8e | 824 | } |
| nyatla | 109:18f12ac01097 | 825 | if(!NyLPC_iUdpSocket_psend(i_inst->_socket,&MDNS_MCAST_IPADDR,MDNS_MCAST_PORT,obuf,l)){ |
| nyatla | 37:fc4b4fd6a649 | 826 | NyLPC_OnErrorGoto(ERROR); |
| nyatla | 37:fc4b4fd6a649 | 827 | } |
| nyatla | 37:fc4b4fd6a649 | 828 | } |
| nyatla | 37:fc4b4fd6a649 | 829 | return; |
| nyatla | 37:fc4b4fd6a649 | 830 | ERROR: |
| nyatla | 109:18f12ac01097 | 831 | NyLPC_iUdpSocket_releaseSendBuf(i_inst->_socket,obuf); |
| nyatla | 37:fc4b4fd6a649 | 832 | return; |
| nyatla | 37:fc4b4fd6a649 | 833 | } |
| nyatla | 37:fc4b4fd6a649 | 834 | |
| nyatla | 37:fc4b4fd6a649 | 835 | |
| nyatla | 98:6284ce9a0476 | 836 | |
| nyatla | 103:853ddf4a1b81 | 837 | static void sendReply2(NyLPC_TcMDnsServer_t* i_inst, const struct NyLPC_TDnsHeader* i_dns_header, const struct NyLPC_TDnsQuestion* q) |
| nyatla | 37:fc4b4fd6a649 | 838 | { |
| nyatla | 37:fc4b4fd6a649 | 839 | NyLPC_TInt16 ptr_recode; |
| nyatla | 37:fc4b4fd6a649 | 840 | NyLPC_TInt16 i2; |
| nyatla | 37:fc4b4fd6a649 | 841 | char* obuf; |
| nyatla | 37:fc4b4fd6a649 | 842 | NyLPC_TUInt16 obuflen; |
| nyatla | 98:6284ce9a0476 | 843 | NyLPC_TUInt16 l; |
| nyatla | 37:fc4b4fd6a649 | 844 | //パケットヘッダの生成 |
| nyatla | 103:853ddf4a1b81 | 845 | switch (q->qtype){ |
| nyatla | 37:fc4b4fd6a649 | 846 | case NyLPC_TDnsQuestion_QTYPR_SRV: |
| nyatla | 103:853ddf4a1b81 | 847 | // |
| nyatla | 103:853ddf4a1b81 | 848 | ptr_recode = NyLPC_TDnsRecord_getMatchSrvIdx(i_inst->_ref_record, q); |
| nyatla | 103:853ddf4a1b81 | 849 | if (ptr_recode<0){ |
| nyatla | 37:fc4b4fd6a649 | 850 | goto DROP; |
| nyatla | 37:fc4b4fd6a649 | 851 | } |
| nyatla | 37:fc4b4fd6a649 | 852 | //Bufferの取得 |
| nyatla | 109:18f12ac01097 | 853 | obuf = NyLPC_iUdpSocket_allocSendBuf(i_inst->_socket, 512, &obuflen, 0); |
| nyatla | 103:853ddf4a1b81 | 854 | if (obuf == NULL){ |
| nyatla | 37:fc4b4fd6a649 | 855 | goto DROP; |
| nyatla | 37:fc4b4fd6a649 | 856 | } |
| nyatla | 103:853ddf4a1b81 | 857 | //SRV,(TXT,A,AAAA,NSEC) |
| nyatla | 104:4f4781ecdc79 | 858 | l = setResponseHeader(obuf, i_dns_header, 1, 0, 3); |
| nyatla | 103:853ddf4a1b81 | 859 | l = writeSRVRecord(i_inst, ptr_recode, obuf, l, obuflen); |
| nyatla | 103:853ddf4a1b81 | 860 | if (l <= 0){ |
| nyatla | 37:fc4b4fd6a649 | 861 | NyLPC_OnErrorGoto(ERROR); |
| nyatla | 37:fc4b4fd6a649 | 862 | } |
| nyatla | 103:853ddf4a1b81 | 863 | l = writeTXTRecord(i_inst, ptr_recode, obuf, l, obuflen); |
| nyatla | 103:853ddf4a1b81 | 864 | if (l <= 0){ |
| nyatla | 37:fc4b4fd6a649 | 865 | NyLPC_OnErrorGoto(ERROR); |
| nyatla | 37:fc4b4fd6a649 | 866 | } |
| nyatla | 37:fc4b4fd6a649 | 867 | //Aレコード |
| nyatla | 109:18f12ac01097 | 868 | l = writeARecord(obuf, l, obuflen, i_inst->_ref_record->a, NyLPC_iUdpSocket_getSockIP(i_inst->_socket)); |
| nyatla | 103:853ddf4a1b81 | 869 | if (l <= 0){ |
| nyatla | 103:853ddf4a1b81 | 870 | NyLPC_OnErrorGoto(ERROR); |
| nyatla | 103:853ddf4a1b81 | 871 | } |
| nyatla | 104:4f4781ecdc79 | 872 | // //AAAAレコード |
| nyatla | 104:4f4781ecdc79 | 873 | // l = writeAAAARecord(obuf, l, obuflen, i_inst->_ref_record->a, &(i_inst->_super.uip_udp_conn.lipaddr)); |
| nyatla | 104:4f4781ecdc79 | 874 | // if (l <= 0){ |
| nyatla | 104:4f4781ecdc79 | 875 | // NyLPC_OnErrorGoto(ERROR); |
| nyatla | 104:4f4781ecdc79 | 876 | // } |
| nyatla | 102:41a5e92e0a8e | 877 | //NSEC |
| nyatla | 103:853ddf4a1b81 | 878 | l = writeNSECRecord(obuf, l, obuflen, i_inst->_ref_record->a); |
| nyatla | 103:853ddf4a1b81 | 879 | if (l <= 0){ |
| nyatla | 102:41a5e92e0a8e | 880 | NyLPC_OnErrorGoto(ERROR); |
| nyatla | 103:853ddf4a1b81 | 881 | } |
| nyatla | 102:41a5e92e0a8e | 882 | break; |
| nyatla | 104:4f4781ecdc79 | 883 | /* case NyLPC_TDnsQuestion_QTYPR_AAAA: |
| nyatla | 102:41a5e92e0a8e | 884 | //自分宛？(name.local) |
| nyatla | 103:853ddf4a1b81 | 885 | if (!NyLPC_TDnsQuestion_isEqualName(q, i_inst->_ref_record->a, "")){ |
| nyatla | 102:41a5e92e0a8e | 886 | goto DROP; |
| nyatla | 102:41a5e92e0a8e | 887 | } |
| nyatla | 102:41a5e92e0a8e | 888 | //Bufferの取得 |
| nyatla | 103:853ddf4a1b81 | 889 | obuf = NyLPC_cUdpSocket_allocSendBuf(&(i_inst->_super), 512, &obuflen, 0); |
| nyatla | 103:853ddf4a1b81 | 890 | if (obuf == NULL){ |
| nyatla | 102:41a5e92e0a8e | 891 | goto DROP; |
| nyatla | 102:41a5e92e0a8e | 892 | } |
| nyatla | 102:41a5e92e0a8e | 893 | //Headerのコピー |
| nyatla | 103:853ddf4a1b81 | 894 | //AAAA,(A,NSEC) |
| nyatla | 103:853ddf4a1b81 | 895 | l = setResponseHeader(obuf, i_dns_header, 1, 0, 2); |
| nyatla | 102:41a5e92e0a8e | 896 | //AAAAレコード |
| nyatla | 103:853ddf4a1b81 | 897 | l = writeAAAARecordByQuery(obuf, l, obuflen, q, &(i_inst->_super.uip_udp_conn.lipaddr)); |
| nyatla | 103:853ddf4a1b81 | 898 | if (l <= 0){ |
| nyatla | 103:853ddf4a1b81 | 899 | NyLPC_OnErrorGoto(ERROR); |
| nyatla | 103:853ddf4a1b81 | 900 | } |
| nyatla | 103:853ddf4a1b81 | 901 | //Aレコードのみ |
| nyatla | 103:853ddf4a1b81 | 902 | l = writeARecordByQuery(obuf, l, obuflen, q, &(i_inst->_super.uip_udp_conn.lipaddr)); |
| nyatla | 103:853ddf4a1b81 | 903 | if (l <= 0){ |
| nyatla | 102:41a5e92e0a8e | 904 | NyLPC_OnErrorGoto(ERROR); |
| nyatla | 102:41a5e92e0a8e | 905 | } |
| nyatla | 102:41a5e92e0a8e | 906 | //NSEC |
| nyatla | 103:853ddf4a1b81 | 907 | l = writeNSECRecordByQuery(obuf, l, obuflen, q); |
| nyatla | 103:853ddf4a1b81 | 908 | if (l <= 0){ |
| nyatla | 102:41a5e92e0a8e | 909 | NyLPC_OnErrorGoto(ERROR); |
| nyatla | 102:41a5e92e0a8e | 910 | } |
| nyatla | 104:4f4781ecdc79 | 911 | break;*/ |
| nyatla | 37:fc4b4fd6a649 | 912 | case NyLPC_TDnsQuestion_QTYPR_A: |
| nyatla | 37:fc4b4fd6a649 | 913 | //自分宛？(name.local) |
| nyatla | 103:853ddf4a1b81 | 914 | if (!NyLPC_TDnsQuestion_isEqualName(q, i_inst->_ref_record->a, "")){ |
| nyatla | 37:fc4b4fd6a649 | 915 | goto DROP; |
| nyatla | 37:fc4b4fd6a649 | 916 | } |
| nyatla | 37:fc4b4fd6a649 | 917 | //Bufferの取得 |
| nyatla | 109:18f12ac01097 | 918 | obuf = NyLPC_iUdpSocket_allocSendBuf(i_inst->_socket, 512, &obuflen, 0); |
| nyatla | 103:853ddf4a1b81 | 919 | if (obuf == NULL){ |
| nyatla | 37:fc4b4fd6a649 | 920 | goto DROP; |
| nyatla | 37:fc4b4fd6a649 | 921 | } |
| nyatla | 37:fc4b4fd6a649 | 922 | //Headerのコピー |
| nyatla | 103:853ddf4a1b81 | 923 | l = setResponseHeader(obuf, i_dns_header, 1, 0, 1); |
| nyatla | 103:853ddf4a1b81 | 924 | //A、(NSEC |
| nyatla | 109:18f12ac01097 | 925 | l = writeARecordByQuery(obuf, l, obuflen, q, NyLPC_iUdpSocket_getSockIP(i_inst->_socket)); |
| nyatla | 103:853ddf4a1b81 | 926 | if (l <= 0){ |
| nyatla | 37:fc4b4fd6a649 | 927 | NyLPC_OnErrorGoto(ERROR); |
| nyatla | 37:fc4b4fd6a649 | 928 | } |
| nyatla | 103:853ddf4a1b81 | 929 | l = writeNSECRecordByQuery(obuf, l, obuflen, q); |
| nyatla | 103:853ddf4a1b81 | 930 | if (l <= 0){ |
| nyatla | 102:41a5e92e0a8e | 931 | NyLPC_OnErrorGoto(ERROR); |
| nyatla | 103:853ddf4a1b81 | 932 | } |
| nyatla | 37:fc4b4fd6a649 | 933 | break; |
| nyatla | 37:fc4b4fd6a649 | 934 | case NyLPC_TDnsQuestion_QTYPR_PTR: |
| nyatla | 98:6284ce9a0476 | 935 | //_service._dns-sd._udpかどうか |
| nyatla | 103:853ddf4a1b81 | 936 | if (NyLPC_TDnsQuestion_isEqualName(q, NULL, "_services._dns-sd._udp")){ |
| nyatla | 37:fc4b4fd6a649 | 937 | //Bufferの取得 |
| nyatla | 109:18f12ac01097 | 938 | obuf = NyLPC_iUdpSocket_allocSendBuf(i_inst->_socket, 512, &obuflen, 0); |
| nyatla | 103:853ddf4a1b81 | 939 | if (obuf == NULL){ |
| nyatla | 37:fc4b4fd6a649 | 940 | goto DROP; |
| nyatla | 37:fc4b4fd6a649 | 941 | } |
| nyatla | 103:853ddf4a1b81 | 942 | l = setResponseHeader(obuf, i_dns_header, i_inst->_ref_record->num_of_srv, 0, 0); |
| nyatla | 103:853ddf4a1b81 | 943 | for (i2 = 0; i2<i_inst->_ref_record->num_of_srv; i2++){ |
| nyatla | 106:dc0d65dbde48 | 944 | l = writeSdPtrRecord(&(i_inst->_ref_record->srv[i2]), obuf, l, obuflen); |
| nyatla | 103:853ddf4a1b81 | 945 | if (l <= 0){ |
| nyatla | 37:fc4b4fd6a649 | 946 | NyLPC_OnErrorGoto(ERROR); |
| nyatla | 37:fc4b4fd6a649 | 947 | } |
| nyatla | 37:fc4b4fd6a649 | 948 | } |
| nyatla | 103:853ddf4a1b81 | 949 | } |
| nyatla | 103:853ddf4a1b81 | 950 | else{ |
| nyatla | 37:fc4b4fd6a649 | 951 | //自分宛？(proto.local) |
| nyatla | 103:853ddf4a1b81 | 952 | ptr_recode = NyLPC_TDnsRecord_getMatchPtrIdx(i_inst->_ref_record, q); |
| nyatla | 103:853ddf4a1b81 | 953 | if (ptr_recode<0){ |
| nyatla | 37:fc4b4fd6a649 | 954 | goto DROP; |
| nyatla | 37:fc4b4fd6a649 | 955 | } |
| nyatla | 37:fc4b4fd6a649 | 956 | //Bufferの取得 |
| nyatla | 109:18f12ac01097 | 957 | obuf = NyLPC_iUdpSocket_allocSendBuf(i_inst->_socket, 512, &obuflen, 0); |
| nyatla | 103:853ddf4a1b81 | 958 | if (obuf == NULL){ |
| nyatla | 37:fc4b4fd6a649 | 959 | goto DROP; |
| nyatla | 37:fc4b4fd6a649 | 960 | } |
| nyatla | 104:4f4781ecdc79 | 961 | l = setResponseHeader(obuf, i_dns_header, 1, 0, 4); |
| nyatla | 103:853ddf4a1b81 | 962 | l = writePtrRecord(i_inst->_ref_record, ptr_recode, obuf, l, obuflen); |
| nyatla | 103:853ddf4a1b81 | 963 | if (l <= 0){ |
| nyatla | 37:fc4b4fd6a649 | 964 | NyLPC_OnErrorGoto(ERROR); |
| nyatla | 37:fc4b4fd6a649 | 965 | } |
| nyatla | 103:853ddf4a1b81 | 966 | //SRV |
| nyatla | 103:853ddf4a1b81 | 967 | l = writeSRVRecord(i_inst, ptr_recode, obuf, l, obuflen); |
| nyatla | 103:853ddf4a1b81 | 968 | if (l <= 0){ |
| nyatla | 37:fc4b4fd6a649 | 969 | NyLPC_OnErrorGoto(ERROR); |
| nyatla | 37:fc4b4fd6a649 | 970 | } |
| nyatla | 103:853ddf4a1b81 | 971 | //TXT |
| nyatla | 103:853ddf4a1b81 | 972 | l = writeTXTRecord(i_inst, ptr_recode, obuf, l, obuflen); |
| nyatla | 103:853ddf4a1b81 | 973 | if (l <= 0){ |
| nyatla | 37:fc4b4fd6a649 | 974 | NyLPC_OnErrorGoto(ERROR); |
| nyatla | 37:fc4b4fd6a649 | 975 | } |
| nyatla | 37:fc4b4fd6a649 | 976 | //Aレコード |
| nyatla | 109:18f12ac01097 | 977 | l = writeARecord(obuf, l, obuflen, i_inst->_ref_record->a,NyLPC_iUdpSocket_getSockIP(i_inst->_socket)); |
| nyatla | 103:853ddf4a1b81 | 978 | if (l <= 0){ |
| nyatla | 37:fc4b4fd6a649 | 979 | NyLPC_OnErrorGoto(ERROR); |
| nyatla | 37:fc4b4fd6a649 | 980 | } |
| nyatla | 104:4f4781ecdc79 | 981 | // //AAAAレコード |
| nyatla | 104:4f4781ecdc79 | 982 | // l = writeAAAARecord(obuf, l, obuflen, i_inst->_ref_record->a, &(i_inst->_super.uip_udp_conn.lipaddr)); |
| nyatla | 104:4f4781ecdc79 | 983 | // if (l <= 0){ |
| nyatla | 104:4f4781ecdc79 | 984 | // NyLPC_OnErrorGoto(ERROR); |
| nyatla | 104:4f4781ecdc79 | 985 | // } |
| nyatla | 103:853ddf4a1b81 | 986 | //NSEC |
| nyatla | 103:853ddf4a1b81 | 987 | l = writeNSECRecord(obuf, l, obuflen, i_inst->_ref_record->a); |
| nyatla | 103:853ddf4a1b81 | 988 | if (l <= 0){ |
| nyatla | 102:41a5e92e0a8e | 989 | NyLPC_OnErrorGoto(ERROR); |
| nyatla | 102:41a5e92e0a8e | 990 | } |
| nyatla | 37:fc4b4fd6a649 | 991 | } |
| nyatla | 37:fc4b4fd6a649 | 992 | break; |
| nyatla | 37:fc4b4fd6a649 | 993 | case NyLPC_TDnsQuestion_QTYPR_TXT: |
| nyatla | 37:fc4b4fd6a649 | 994 | //自分宛？(proto.local) |
| nyatla | 103:853ddf4a1b81 | 995 | ptr_recode = NyLPC_TDnsRecord_getMatchSrvIdx(i_inst->_ref_record, q); |
| nyatla | 103:853ddf4a1b81 | 996 | if (ptr_recode<0){ |
| nyatla | 37:fc4b4fd6a649 | 997 | goto DROP; |
| nyatla | 37:fc4b4fd6a649 | 998 | } |
| nyatla | 37:fc4b4fd6a649 | 999 | //Bufferの取得 |
| nyatla | 109:18f12ac01097 | 1000 | obuf = NyLPC_iUdpSocket_allocSendBuf(i_inst->_socket, 512, &obuflen, 0); |
| nyatla | 104:4f4781ecdc79 | 1001 | l = setResponseHeader(obuf, i_dns_header, 1, 0, 2); |
| nyatla | 103:853ddf4a1b81 | 1002 | l = writeTXTRecord(i_inst, ptr_recode, obuf, l, obuflen); |
| nyatla | 103:853ddf4a1b81 | 1003 | if (l <= 0){ |
| nyatla | 37:fc4b4fd6a649 | 1004 | NyLPC_OnErrorGoto(ERROR); |
| nyatla | 37:fc4b4fd6a649 | 1005 | } |
| nyatla | 103:853ddf4a1b81 | 1006 | //A recoad |
| nyatla | 109:18f12ac01097 | 1007 | l = writeARecord(obuf, l, obuflen, i_inst->_ref_record->a,NyLPC_iUdpSocket_getSockIP(i_inst->_socket)); |
| nyatla | 103:853ddf4a1b81 | 1008 | if (l <= 0){ |
| nyatla | 37:fc4b4fd6a649 | 1009 | NyLPC_OnErrorGoto(ERROR); |
| nyatla | 37:fc4b4fd6a649 | 1010 | } |
| nyatla | 104:4f4781ecdc79 | 1011 | // //AAAAレコード |
| nyatla | 104:4f4781ecdc79 | 1012 | // l = writeAAAARecord(obuf, l, obuflen, i_inst->_ref_record->a, &(i_inst->_super.uip_udp_conn.lipaddr)); |
| nyatla | 104:4f4781ecdc79 | 1013 | // if (l <= 0){ |
| nyatla | 104:4f4781ecdc79 | 1014 | // NyLPC_OnErrorGoto(ERROR); |
| nyatla | 104:4f4781ecdc79 | 1015 | // } |
| nyatla | 103:853ddf4a1b81 | 1016 | //NSEC |
| nyatla | 103:853ddf4a1b81 | 1017 | l = writeNSECRecord(obuf, l, obuflen, i_inst->_ref_record->a); |
| nyatla | 103:853ddf4a1b81 | 1018 | if (l <= 0){ |
| nyatla | 102:41a5e92e0a8e | 1019 | NyLPC_OnErrorGoto(ERROR); |
| nyatla | 102:41a5e92e0a8e | 1020 | } |
| nyatla | 37:fc4b4fd6a649 | 1021 | break; |
| nyatla | 37:fc4b4fd6a649 | 1022 | default: |
| nyatla | 37:fc4b4fd6a649 | 1023 | goto DROP; |
| nyatla | 37:fc4b4fd6a649 | 1024 | } |
| nyatla | 109:18f12ac01097 | 1025 | if (!NyLPC_iUdpSocket_psend(i_inst->_socket, &MDNS_MCAST_IPADDR, MDNS_MCAST_PORT, obuf, l)){ |
| nyatla | 37:fc4b4fd6a649 | 1026 | NyLPC_OnErrorGoto(ERROR); |
| nyatla | 37:fc4b4fd6a649 | 1027 | } |
| nyatla | 37:fc4b4fd6a649 | 1028 | return; |
| nyatla | 37:fc4b4fd6a649 | 1029 | ERROR: |
| nyatla | 109:18f12ac01097 | 1030 | NyLPC_iUdpSocket_releaseSendBuf(i_inst->_socket, obuf); |
| nyatla | 37:fc4b4fd6a649 | 1031 | DROP: |
| nyatla | 37:fc4b4fd6a649 | 1032 | return; |
| nyatla | 37:fc4b4fd6a649 | 1033 | } |
| nyatla | 107:d4b14febb863 | 1034 | #define ST_INIT 1 //初期QUERY送信(省略) |
| nyatla | 107:d4b14febb863 | 1035 | #define ST_ANNOUNCE 2 //アナウンス |
| nyatla | 107:d4b14febb863 | 1036 | #define ST_WAIT 3 //待機 |
| nyatla | 107:d4b14febb863 | 1037 | |
| nyatla | 37:fc4b4fd6a649 | 1038 | |
| nyatla | 109:18f12ac01097 | 1039 | static NyLPC_TBool onPacket(NyLPC_TiUdpSocket_t* i_inst,const void* i_buf,const struct NyLPC_TIPv4RxInfo* i_info) |
| nyatla | 37:fc4b4fd6a649 | 1040 | { |
| nyatla | 98:6284ce9a0476 | 1041 | NyLPC_TUInt16 in_len; |
| nyatla | 37:fc4b4fd6a649 | 1042 | NyLPC_TUInt16 num_of_query; |
| nyatla | 37:fc4b4fd6a649 | 1043 | struct NyLPC_TDnsQuestion q; |
| nyatla | 37:fc4b4fd6a649 | 1044 | NyLPC_TUInt16 s; |
| nyatla | 37:fc4b4fd6a649 | 1045 | NyLPC_TInt16 i; |
| nyatla | 37:fc4b4fd6a649 | 1046 | |
| nyatla | 37:fc4b4fd6a649 | 1047 | if(i_info->peer_port!=MDNS_MCAST_PORT || !NyLPC_TIPv4Addr_isEqual(&MDNS_MCAST_IPADDR,&i_info->ip)){ |
| nyatla | 37:fc4b4fd6a649 | 1048 | return NyLPC_TBool_FALSE; |
| nyatla | 37:fc4b4fd6a649 | 1049 | } |
| nyatla | 37:fc4b4fd6a649 | 1050 | |
| nyatla | 98:6284ce9a0476 | 1051 | num_of_query=getNumberOfQuestion(i_buf,i_info->size); |
| nyatla | 37:fc4b4fd6a649 | 1052 | if(num_of_query==0){ |
| nyatla | 37:fc4b4fd6a649 | 1053 | goto DROP; |
| nyatla | 37:fc4b4fd6a649 | 1054 | } |
| nyatla | 98:6284ce9a0476 | 1055 | in_len=sizeof(struct NyLPC_TDnsHeader); |
| nyatla | 37:fc4b4fd6a649 | 1056 | for(i=0;i<num_of_query;i++){ |
| nyatla | 37:fc4b4fd6a649 | 1057 | //Queryのパース |
| nyatla | 98:6284ce9a0476 | 1058 | |
| nyatla | 98:6284ce9a0476 | 1059 | s=NyLPC_TDnsQuestion_parse(i_buf,i_info->size,in_len,&q); |
| nyatla | 37:fc4b4fd6a649 | 1060 | if(s==0){ |
| nyatla | 37:fc4b4fd6a649 | 1061 | goto DROP; |
| nyatla | 37:fc4b4fd6a649 | 1062 | } |
| nyatla | 98:6284ce9a0476 | 1063 | in_len+=s; |
| nyatla | 109:18f12ac01097 | 1064 | sendReply2((NyLPC_TcMDnsServer_t*)i_inst->_tag,(const struct NyLPC_TDnsHeader*)i_buf,&q); |
| nyatla | 37:fc4b4fd6a649 | 1065 | } |
| nyatla | 37:fc4b4fd6a649 | 1066 | //パケット処理終了 |
| nyatla | 37:fc4b4fd6a649 | 1067 | return NyLPC_TBool_FALSE; |
| nyatla | 37:fc4b4fd6a649 | 1068 | DROP: |
| nyatla | 37:fc4b4fd6a649 | 1069 | return NyLPC_TBool_FALSE; |
| nyatla | 37:fc4b4fd6a649 | 1070 | } |
| nyatla | 37:fc4b4fd6a649 | 1071 | |
| nyatla | 109:18f12ac01097 | 1072 | static void onPeriodic(NyLPC_TiUdpSocket_t* i_inst) |
| nyatla | 37:fc4b4fd6a649 | 1073 | { |
| nyatla | 109:18f12ac01097 | 1074 | NyLPC_TcMDnsServer_t* inst=(NyLPC_TcMDnsServer_t*)i_inst->_tag; |
| nyatla | 107:d4b14febb863 | 1075 | //Announce Timeout |
| nyatla | 107:d4b14febb863 | 1076 | if(NyLPC_cStopwatch_isExpired(&((NyLPC_TcMDnsServer_t*)inst)->_periodic_sw)){ |
| nyatla | 107:d4b14febb863 | 1077 | switch(inst->_state){ |
| nyatla | 107:d4b14febb863 | 1078 | case ST_WAIT: |
| nyatla | 107:d4b14febb863 | 1079 | inst->_state_val=0; |
| nyatla | 107:d4b14febb863 | 1080 | inst->_state=ST_ANNOUNCE;// set Announce status |
| nyatla | 107:d4b14febb863 | 1081 | case ST_ANNOUNCE: |
| nyatla | 107:d4b14febb863 | 1082 | //アナウンス |
| nyatla | 107:d4b14febb863 | 1083 | inst->_state_val++; |
| nyatla | 107:d4b14febb863 | 1084 | if(inst->_state_val<=3){ |
| nyatla | 107:d4b14febb863 | 1085 | sendAnnounse(((NyLPC_TcMDnsServer_t*)inst)); |
| nyatla | 107:d4b14febb863 | 1086 | NyLPC_cStopwatch_startExpire((&((NyLPC_TcMDnsServer_t*)inst)->_periodic_sw),1000); |
| nyatla | 107:d4b14febb863 | 1087 | }else{ |
| nyatla | 107:d4b14febb863 | 1088 | inst->_state=ST_WAIT; |
| nyatla | 107:d4b14febb863 | 1089 | //TTL(msec)*1000*80% |
| nyatla | 107:d4b14febb863 | 1090 | NyLPC_cStopwatch_startExpire((&((NyLPC_TcMDnsServer_t*)inst)->_periodic_sw),NyLPC_TcMDns_STD_TTL*1000*4/5); |
| nyatla | 107:d4b14febb863 | 1091 | } |
| nyatla | 107:d4b14febb863 | 1092 | } |
| nyatla | 37:fc4b4fd6a649 | 1093 | } |
| nyatla | 37:fc4b4fd6a649 | 1094 | } |
| nyatla | 37:fc4b4fd6a649 | 1095 | |
| nyatla | 37:fc4b4fd6a649 | 1096 | NyLPC_TBool NyLPC_cMDnsServer_initialize( |
| nyatla | 48:00d211aac2ec | 1097 | NyLPC_TcMDnsServer_t* i_inst,const struct NyLPC_TDnsRecord* i_ref_record) |
| nyatla | 37:fc4b4fd6a649 | 1098 | { |
| nyatla | 37:fc4b4fd6a649 | 1099 | NyLPC_cStopwatch_initialize(&(i_inst->_periodic_sw)); |
| nyatla | 37:fc4b4fd6a649 | 1100 | NyLPC_cStopwatch_startExpire(&(i_inst->_periodic_sw),1000); |
| nyatla | 110:257739f9b31e | 1101 | i_inst->_socket=NyLPC_cNet_createUdpSocketEx(MDNS_MCAST_PORT,NyLPC_TSocketType_UDP_NOBUF); |
| nyatla | 109:18f12ac01097 | 1102 | i_inst->_socket->_tag=i_inst; |
| nyatla | 109:18f12ac01097 | 1103 | NyLPC_iUdpSocket_setOnRxHandler(i_inst->_socket,onPacket); |
| nyatla | 109:18f12ac01097 | 1104 | NyLPC_iUdpSocket_setOnPeriodicHandler(i_inst->_socket,onPeriodic); |
| nyatla | 109:18f12ac01097 | 1105 | NyLPC_iUdpSocket_joinMulticast(i_inst->_socket,&MDNS_MCAST_IPADDR); |
| nyatla | 107:d4b14febb863 | 1106 | i_inst->_state=ST_WAIT; |
| nyatla | 107:d4b14febb863 | 1107 | i_inst->_state_val=0; |
| nyatla | 37:fc4b4fd6a649 | 1108 | i_inst->_ref_record=i_ref_record; |
| nyatla | 37:fc4b4fd6a649 | 1109 | return NyLPC_TBool_TRUE; |
| nyatla | 37:fc4b4fd6a649 | 1110 | } |
| nyatla | 37:fc4b4fd6a649 | 1111 | void NyLPC_cMDnsServer_finalize( |
| nyatla | 37:fc4b4fd6a649 | 1112 | NyLPC_TcMDnsServer_t* i_inst) |
| nyatla | 37:fc4b4fd6a649 | 1113 | { |
| nyatla | 109:18f12ac01097 | 1114 | NyLPC_iUdpSocket_finalize(i_inst->_socket); |
| nyatla | 37:fc4b4fd6a649 | 1115 | NyLPC_cStopwatch_finalize(&(i_inst->_periodic_sw)); |
| nyatla | 37:fc4b4fd6a649 | 1116 | } |
| nyatla | 37:fc4b4fd6a649 | 1117 | |
| nyatla | 37:fc4b4fd6a649 | 1118 | |
| nyatla | 37:fc4b4fd6a649 | 1119 |
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Repository details
| Type: | Library |
|---|---|
| Created: | 28 Mar 2013 |
| Imports: | 145 |
| Forks: | 1 |
| Commits: | 115 |
| Dependents: | 14 |
| Dependencies: | 0 |
| Followers: | 17 |
| Issues: | 5 |
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MiMic Webservice library