Ryo Iizuka / libMiMic

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。

/media/uploads/nyatla/libmimic-sdk.png

※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 programHttpClientSamlpe

A http client 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

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.

/media/uploads/nyatla/libmimic-sdk.png

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 programHttpClientSamlpe

A http client 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

core/netif/NyLPC_NetIf_ip_types.c@109:18f12ac01097, 2014-11-19 (annotated)

Committer:
nyatla
Date:
Wed Nov 19 14:45:17 2014 +0000
Revision:
109:18f12ac01097
new MiMicIP API;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nyatla 109:18f12ac01097 1 /*********************************************************************************
nyatla 109:18f12ac01097 2 * PROJECT: MiMic
nyatla 109:18f12ac01097 3 * --------------------------------------------------------------------------------
nyatla 109:18f12ac01097 4 *
nyatla 109:18f12ac01097 5 * This file is part of MiMic
nyatla 109:18f12ac01097 6 * Copyright (C)2011 Ryo Iizuka
nyatla 109:18f12ac01097 7 *
nyatla 109:18f12ac01097 8 * MiMic is free software: you can redistribute it and/or modify
nyatla 109:18f12ac01097 9 * it under the terms of the GNU Lesser General Public License as published
nyatla 109:18f12ac01097 10 * by　the Free Software Foundation, either version 3 of the　License, or
nyatla 109:18f12ac01097 11 * (at your option) any later version.
nyatla 109:18f12ac01097 12 *
nyatla 109:18f12ac01097 13 * This program is distributed in the hope that it will be useful,
nyatla 109:18f12ac01097 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
nyatla 109:18f12ac01097 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
nyatla 109:18f12ac01097 16 * GNU General Public License for more details.
nyatla 109:18f12ac01097 17 *
nyatla 109:18f12ac01097 18 * You should have received a copy of the GNU Lesser General Public License
nyatla 109:18f12ac01097 19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
nyatla 109:18f12ac01097 20 *
nyatla 109:18f12ac01097 21 * For further information please contact.
nyatla 109:18f12ac01097 22 * http://nyatla.jp/
nyatla 109:18f12ac01097 23 * <airmail(at)ebony.plala.or.jp> or <nyatla(at)nyatla.jp>
nyatla 109:18f12ac01097 24 *
nyatla 109:18f12ac01097 25 *
nyatla 109:18f12ac01097 26 * Parts of this file were leveraged from uIP:
nyatla 109:18f12ac01097 27 *
nyatla 109:18f12ac01097 28 * Copyright (c) 2001-2003, Adam Dunkels.
nyatla 109:18f12ac01097 29 * All rights reserved.
nyatla 109:18f12ac01097 30 *
nyatla 109:18f12ac01097 31 * Redistribution and use in source and binary forms, with or without
nyatla 109:18f12ac01097 32 * modification, are permitted provided that the following conditions
nyatla 109:18f12ac01097 33 * are met:
nyatla 109:18f12ac01097 34 * 1. Redistributions of source code must retain the above copyright
nyatla 109:18f12ac01097 35 * notice, this list of conditions and the following disclaimer.
nyatla 109:18f12ac01097 36 * 2. Redistributions in binary form must reproduce the above copyright
nyatla 109:18f12ac01097 37 * notice, this list of conditions and the following disclaimer in the
nyatla 109:18f12ac01097 38 * documentation and/or other materials provided with the distribution.
nyatla 109:18f12ac01097 39 * 3. The name of the author may not be used to endorse or promote
nyatla 109:18f12ac01097 40 * products derived from this software without specific prior
nyatla 109:18f12ac01097 41 * written permission.
nyatla 109:18f12ac01097 42 *
nyatla 109:18f12ac01097 43 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
nyatla 109:18f12ac01097 44 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
nyatla 109:18f12ac01097 45 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
nyatla 109:18f12ac01097 46 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
nyatla 109:18f12ac01097 47 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
nyatla 109:18f12ac01097 48 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
nyatla 109:18f12ac01097 49 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
nyatla 109:18f12ac01097 50 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
nyatla 109:18f12ac01097 51 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
nyatla 109:18f12ac01097 52 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
nyatla 109:18f12ac01097 53 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
nyatla 109:18f12ac01097 54 */
nyatla 109:18f12ac01097 55 #include "NyLPC_NetIf_ip_types.h"
nyatla 109:18f12ac01097 56
nyatla 109:18f12ac01097 57
nyatla 109:18f12ac01097 58
nyatla 109:18f12ac01097 59 const struct NyLPC_TIPv4Addr NyLPC_TIPv4Addr_ZERO={0x00000000};
nyatla 109:18f12ac01097 60 const struct NyLPC_TIPv4Addr NyLPC_TIPv4Addr_ALL ={0xffffffff};
nyatla 109:18f12ac01097 61 const struct NyLPC_TIPv4Addr NyLPC_TIPv4Addr_BROADCAST = { 0xffffffff };
nyatla 109:18f12ac01097 62 const struct NyLPC_TIPv4Addr NyLPC_TIPv4Addr_MULTICAST = NyLPC_TIPv4Addr_pack(224,0,0,0);
nyatla 109:18f12ac01097 63 const struct NyLPC_TIPv4Addr NyLPC_TIPv4Addr_MULTICAST_MASK = NyLPC_TIPv4Addr_pack(224,0,0,0);
nyatla 109:18f12ac01097 64 const struct NyLPC_TIPv4Addr NyLPC_TIPv4Addr_APIPA_MASK = NyLPC_TIPv4Addr_pack(255,255,0,0);
nyatla 109:18f12ac01097 65
nyatla 109:18f12ac01097 66 NyLPC_TInt16 NyLPC_TIPv4Addr_toString(const struct NyLPC_TIPv4Addr* i_ip,NyLPC_TChar* i_buf)
nyatla 109:18f12ac01097 67 {
nyatla 109:18f12ac01097 68 NyLPC_TUInt32 ip;
nyatla 109:18f12ac01097 69 NyLPC_TChar* p=i_buf;
nyatla 109:18f12ac01097 70 NyLPC_TUInt8 v;
nyatla 109:18f12ac01097 71 NyLPC_TInt8 l;
nyatla 109:18f12ac01097 72 //IPをホストオーダーにする。
nyatla 109:18f12ac01097 73 ip=NyLPC_NTOHL(i_ip->v);
nyatla 109:18f12ac01097 74 for(l=3;l>=0;l--){
nyatla 109:18f12ac01097 75 v=(ip>>(8*l))&0xff;
nyatla 109:18f12ac01097 76 if(v>=100){
nyatla 109:18f12ac01097 77 *p=(v/100)+'0';
nyatla 109:18f12ac01097 78 p++;
nyatla 109:18f12ac01097 79 }
nyatla 109:18f12ac01097 80 if(v>=10){
nyatla 109:18f12ac01097 81 *p=((v%100)/10)+'0';
nyatla 109:18f12ac01097 82 p++;
nyatla 109:18f12ac01097 83 }
nyatla 109:18f12ac01097 84 *p=(v%10)+'0';
nyatla 109:18f12ac01097 85 *(p+1)='.';
nyatla 109:18f12ac01097 86 p+=2;
nyatla 109:18f12ac01097 87 }
nyatla 109:18f12ac01097 88 *(p-1)='\0';
nyatla 109:18f12ac01097 89 return p-i_buf-1;
nyatla 109:18f12ac01097 90 }
nyatla 109:18f12ac01097 91
nyatla 109:18f12ac01097 92
nyatla 109:18f12ac01097 93 NyLPC_TUInt16 NyLPC_uip_chksum(NyLPC_TUInt16 sum, const NyLPC_TUInt8 *data, NyLPC_TUInt16 len)
nyatla 109:18f12ac01097 94 {
nyatla 109:18f12ac01097 95 NyLPC_TUInt16 t;
nyatla 109:18f12ac01097 96 const NyLPC_TUInt8 *dataptr;
nyatla 109:18f12ac01097 97 const NyLPC_TUInt8 *last_byte;
nyatla 109:18f12ac01097 98
nyatla 109:18f12ac01097 99 dataptr = data;
nyatla 109:18f12ac01097 100 last_byte = data + len - 1;
nyatla 109:18f12ac01097 101
nyatla 109:18f12ac01097 102 while (dataptr < last_byte) { /* At least two more bytes */
nyatla 109:18f12ac01097 103 t = (dataptr[0] << 8) + dataptr[1];
nyatla 109:18f12ac01097 104 sum += t;
nyatla 109:18f12ac01097 105 if (sum < t) {
nyatla 109:18f12ac01097 106 sum++; /* carry */
nyatla 109:18f12ac01097 107 }
nyatla 109:18f12ac01097 108 dataptr += 2;
nyatla 109:18f12ac01097 109 }
nyatla 109:18f12ac01097 110
nyatla 109:18f12ac01097 111 if (dataptr == last_byte) {
nyatla 109:18f12ac01097 112 t = (dataptr[0] << 8) + 0;
nyatla 109:18f12ac01097 113 sum += t;
nyatla 109:18f12ac01097 114 if (sum < t) {
nyatla 109:18f12ac01097 115 sum++; /* carry */
nyatla 109:18f12ac01097 116 }
nyatla 109:18f12ac01097 117 }
nyatla 109:18f12ac01097 118
nyatla 109:18f12ac01097 119 /* Return sum in host byte order. */
nyatla 109:18f12ac01097 120 return sum;
nyatla 109:18f12ac01097 121 }
nyatla 109:18f12ac01097 122
nyatla 109:18f12ac01097 123 /*--------------------------------------------------------------------------------
nyatla 109:18f12ac01097 124 *
nyatla 109:18f12ac01097 125 * struct NyLPC_TEthernetIIHeader
nyatla 109:18f12ac01097 126 *
nyatla 109:18f12ac01097 127 *------------------------------------------------------------------------------*/
nyatla 109:18f12ac01097 128
nyatla 109:18f12ac01097 129 /**
nyatla 109:18f12ac01097 130 * Ethernetヘッダの内容を、ARPパケットの内容に一致するように書き換えます。
nyatla 109:18f12ac01097 131 * i_structの後方にあるものと仮定します。
nyatla 109:18f12ac01097 132 * 戻り値は、フレームの長さです。
nyatla 109:18f12ac01097 133 */
nyatla 109:18f12ac01097 134 NyLPC_TUInt16 NyLPC_TEthernetIIHeader_setArpTx(
nyatla 109:18f12ac01097 135 struct NyLPC_TEthernetIIHeader* i_struct,
nyatla 109:18f12ac01097 136 const struct NyLPC_TEthAddr* i_my_eth_addr)
nyatla 109:18f12ac01097 137 {
nyatla 109:18f12ac01097 138 struct NyLPC_TArpHeader* arph=(struct NyLPC_TArpHeader*)(((NyLPC_TUInt8*)i_struct)+sizeof(struct NyLPC_TEthernetIIHeader));
nyatla 109:18f12ac01097 139
nyatla 109:18f12ac01097 140 i_struct->type = NyLPC_HTONS(NyLPC_TEthernetIIHeader_TYPE_ARP);
nyatla 109:18f12ac01097 141 switch(arph->opcode){
nyatla 109:18f12ac01097 142 case NyLPC_HTONS(ARP_REPLY):
nyatla 109:18f12ac01097 143 memcpy(i_struct->src.addr, i_my_eth_addr->addr, 6);
nyatla 109:18f12ac01097 144 memcpy(i_struct->dest.addr, arph->dhwaddr.addr, 6);
nyatla 109:18f12ac01097 145 break;
nyatla 109:18f12ac01097 146 case NyLPC_HTONS(ARP_REQUEST):
nyatla 109:18f12ac01097 147 memset(i_struct->dest.addr, 0xff, 6);
nyatla 109:18f12ac01097 148 memcpy(i_struct->src.addr, i_my_eth_addr->addr, 6);
nyatla 109:18f12ac01097 149 break;
nyatla 109:18f12ac01097 150 }
nyatla 109:18f12ac01097 151 return sizeof(struct NyLPC_TEthernetIIHeader)+sizeof(struct NyLPC_TArpHeader);
nyatla 109:18f12ac01097 152 }
nyatla 109:18f12ac01097 153
nyatla 109:18f12ac01097 154 /**
nyatla 109:18f12ac01097 155 * イーサネットヘッダをIPv4向けにセットアップする。
nyatla 109:18f12ac01097 156 * 関数は、ペイロードをIPv4ヘッダとして、フレームサイズを計算する。
nyatla 109:18f12ac01097 157 */
nyatla 109:18f12ac01097 158 NyLPC_TUInt16 NyLPC_TEthernetIIHeader_setIPv4Tx(
nyatla 109:18f12ac01097 159 struct NyLPC_TEthernetIIHeader* i_eth,
nyatla 109:18f12ac01097 160 const struct NyLPC_TEthAddr* i_src_eth_addr,
nyatla 109:18f12ac01097 161 const struct NyLPC_TEthAddr* i_dest_eth_addr)
nyatla 109:18f12ac01097 162 {
nyatla 109:18f12ac01097 163 struct NyLPC_TIPv4Header* iph=(struct NyLPC_TIPv4Header*)(((NyLPC_TUInt8*)i_eth)+sizeof(struct NyLPC_TEthernetIIHeader));
nyatla 109:18f12ac01097 164
nyatla 109:18f12ac01097 165 i_eth->type = NyLPC_HTONS(NyLPC_TEthernetIIHeader_TYPE_IP);
nyatla 109:18f12ac01097 166 /* Build an ethernet header. */
nyatla 109:18f12ac01097 167 memcpy(i_eth->dest.addr,i_dest_eth_addr, 6);
nyatla 109:18f12ac01097 168 memcpy(i_eth->src.addr, i_src_eth_addr->addr, 6);
nyatla 109:18f12ac01097 169
nyatla 109:18f12ac01097 170
nyatla 109:18f12ac01097 171 //IPフラグメントに応じたサイズ計算
nyatla 109:18f12ac01097 172 switch(iph->proto){
nyatla 109:18f12ac01097 173 case UIP_PROTO_TCP:
nyatla 109:18f12ac01097 174 return sizeof(struct NyLPC_TEthernetIIHeader)+NyLPC_htons(iph->len16);
nyatla 109:18f12ac01097 175 case UIP_PROTO_UDP:
nyatla 109:18f12ac01097 176 return sizeof(struct NyLPC_TEthernetIIHeader)+NyLPC_htons(iph->len16);
nyatla 109:18f12ac01097 177 case UIP_PROTO_ICMP:
nyatla 109:18f12ac01097 178 return sizeof(struct NyLPC_TEthernetIIHeader)+NyLPC_htons(iph->len16);
nyatla 109:18f12ac01097 179 }
nyatla 109:18f12ac01097 180 return 0;
nyatla 109:18f12ac01097 181 }
nyatla 109:18f12ac01097 182 /*--------------------------------------------------------------------------------
nyatla 109:18f12ac01097 183 *
nyatla 109:18f12ac01097 184 * struct NyLPC_TIPv4Header
nyatla 109:18f12ac01097 185 *
nyatla 109:18f12ac01097 186 *------------------------------------------------------------------------------*/
nyatla 109:18f12ac01097 187
nyatla 109:18f12ac01097 188 /**
nyatla 109:18f12ac01097 189 * based on uip_ipchksum
nyatla 109:18f12ac01097 190 */
nyatla 109:18f12ac01097 191 NyLPC_TUInt16 NyLPC_TIPv4Header_makeIpChecksum(const struct NyLPC_TIPv4Header* ip_header)
nyatla 109:18f12ac01097 192 {
nyatla 109:18f12ac01097 193 NyLPC_TUInt16 sum;
nyatla 109:18f12ac01097 194 sum = NyLPC_uip_chksum(0, (const NyLPC_TUInt8 *)ip_header,NyLPC_TIPv4Header_getHeaderLength(ip_header));
nyatla 109:18f12ac01097 195 return (sum == 0) ? 0xffff : NyLPC_htons(sum);
nyatla 109:18f12ac01097 196 }
nyatla 109:18f12ac01097 197
nyatla 109:18f12ac01097 198
nyatla 109:18f12ac01097 199
nyatla 109:18f12ac01097 200 NyLPC_TBool NyLPC_TIPv4Header_isCorrectIpCheckSum(const struct NyLPC_TIPv4Header* ip_header)
nyatla 109:18f12ac01097 201 {
nyatla 109:18f12ac01097 202 return (NyLPC_TIPv4Header_makeIpChecksum(ip_header)==0xffff);
nyatla 109:18f12ac01097 203 }
nyatla 109:18f12ac01097 204
nyatla 109:18f12ac01097 205 NyLPC_TBool NyLPC_cIPv4Packet_isCorrectTcpCheckSum(const struct NyLPC_TIPv4Header* ip_header)
nyatla 109:18f12ac01097 206 {
nyatla 109:18f12ac01097 207 return (NyLPC_TIPv4Header_makeTcpChecksum(ip_header) == 0xffff);
nyatla 109:18f12ac01097 208 }
nyatla 109:18f12ac01097 209
nyatla 109:18f12ac01097 210
nyatla 109:18f12ac01097 211
nyatla 109:18f12ac01097 212
nyatla 109:18f12ac01097 213 /**
nyatla 109:18f12ac01097 214 * TCPチェックサムを計算します。
nyatla 109:18f12ac01097 215 * ペイロードはIPヘッダの後方に連続して存在する物と仮定します。
nyatla 109:18f12ac01097 216 * i_lenは、ペイロード長さ
nyatla 109:18f12ac01097 217 */
nyatla 109:18f12ac01097 218 NyLPC_TUInt16 NyLPC_TIPv4Header_makeTcpChecksum(
nyatla 109:18f12ac01097 219 const struct NyLPC_TIPv4Header* i_iph)
nyatla 109:18f12ac01097 220 {
nyatla 109:18f12ac01097 221 NyLPC_TUInt16 sum;
nyatla 109:18f12ac01097 222 NyLPC_TUInt16 iph_len=NyLPC_TIPv4Header_getHeaderLength(i_iph);
nyatla 109:18f12ac01097 223 NyLPC_TUInt16 len = NyLPC_ntohs((i_iph)->len16)- iph_len;
nyatla 109:18f12ac01097 224 NyLPC_ArgAssert(i_iph!=NULL);
nyatla 109:18f12ac01097 225 /*TCP疑似ヘッダ部分*/
nyatla 109:18f12ac01097 226 /* IP protocol and length fields. This addition cannot carry. */
nyatla 109:18f12ac01097 227 sum = len + i_iph->proto;
nyatla 109:18f12ac01097 228 /* Sum IP source and destination addresses. */
nyatla 109:18f12ac01097 229 sum = NyLPC_uip_chksum(sum, (NyLPC_TUInt8 *) &(i_iph->srcipaddr), 2 * sizeof(struct NyLPC_TIPv4Addr));
nyatla 109:18f12ac01097 230 /* Sum TCP header and data. */
nyatla 109:18f12ac01097 231 sum = NyLPC_uip_chksum(sum, (((NyLPC_TUInt8 *)(i_iph))+iph_len),len);
nyatla 109:18f12ac01097 232 // sum = chksum(sum, &uip_buf[UIP_IPH_LEN + UIP_LLH_LEN], i_len_of_data);
nyatla 109:18f12ac01097 233 return (sum == 0) ? 0xffff : NyLPC_htons(sum);
nyatla 109:18f12ac01097 234 }
nyatla 109:18f12ac01097 235
nyatla 109:18f12ac01097 236 static NyLPC_TUInt16 pid=0x3939;
nyatla 109:18f12ac01097 237 /**
nyatla 109:18f12ac01097 238 * IPヘッダを送信パケット用に設定する。
nyatla 109:18f12ac01097 239 * ipid16にはコールされるたびに新しい値を設定する。
nyatla 109:18f12ac01097 240 * ipcecksumには0を設定する。
nyatla 109:18f12ac01097 241 * この関数は、パケットサイズ,ローカルIP/リモートIPの設定はしない。
nyatla 109:18f12ac01097 242 */
nyatla 109:18f12ac01097 243 void NyLPC_TIPv4Header_writeTxIpHeader(
nyatla 109:18f12ac01097 244 struct NyLPC_TIPv4Header* i_struct,
nyatla 109:18f12ac01097 245 NyLPC_TUInt8 i_proto)
nyatla 109:18f12ac01097 246 {
nyatla 109:18f12ac01097 247 //IPパケットのセット
nyatla 109:18f12ac01097 248 i_struct->proto=i_proto;
nyatla 109:18f12ac01097 249 i_struct->ttl = UIP_DEFAULT_IP_TTL;
nyatla 109:18f12ac01097 250 i_struct->tos = 0;
nyatla 109:18f12ac01097 251 i_struct->ipid16=(pid++);
nyatla 109:18f12ac01097 252 i_struct->ipoffset=0;//NyLPC_HTONS(0|0x4000);
nyatla 109:18f12ac01097 253 i_struct->ipchksum = 0;
nyatla 109:18f12ac01097 254 }
nyatla 109:18f12ac01097 255 /*--------------------------------------------------------------------------------
nyatla 109:18f12ac01097 256 *
nyatla 109:18f12ac01097 257 * struct NyLPC_TIPv6Header
nyatla 109:18f12ac01097 258 *
nyatla 109:18f12ac01097 259 *------------------------------------------------------------------------------*/
nyatla 109:18f12ac01097 260 #define IPV6_HEADER_SIZE 40
nyatla 109:18f12ac01097 261 /**
nyatla 109:18f12ac01097 262 * IPヘッダーを作って埋める関数
nyatla 109:18f12ac01097 263 */
nyatla 109:18f12ac01097 264 void NyLPC_TIPv6Header_setSendHeader(
nyatla 109:18f12ac01097 265 struct NyLPC_TIPv6Header* i_iph,
nyatla 109:18f12ac01097 266 uip_ip6addr_t i_src,
nyatla 109:18f12ac01097 267 uip_ip6addr_t i_dest,
nyatla 109:18f12ac01097 268 NyLPC_TUInt8 i_proto,
nyatla 109:18f12ac01097 269 NyLPC_TUInt8 i_ttl,
nyatla 109:18f12ac01097 270 NyLPC_TUInt16 i_len)
nyatla 109:18f12ac01097 271 {
nyatla 109:18f12ac01097 272 i_iph->srcipaddr=i_src;
nyatla 109:18f12ac01097 273 i_iph->destipaddr=i_dest;
nyatla 109:18f12ac01097 274 i_iph->proto=i_proto;
nyatla 109:18f12ac01097 275 i_iph->ttl = i_ttl;
nyatla 109:18f12ac01097 276 i_iph->vtc = 0x60;
nyatla 109:18f12ac01097 277 i_iph->tcflow = 0x00;
nyatla 109:18f12ac01097 278 i_iph->flow = 0x00;
nyatla 109:18f12ac01097 279 i_iph->len16= NyLPC_htons(i_len - IPV6_HEADER_SIZE);
nyatla 109:18f12ac01097 280 return;
nyatla 109:18f12ac01097 281 }
nyatla 109:18f12ac01097 282
nyatla 109:18f12ac01097 283
nyatla 109:18f12ac01097 284 /**
nyatla 109:18f12ac01097 285 * チェックサムは、TCP疑似ヘッダから計算。
nyatla 109:18f12ac01097 286 * i_tcpiphの送信/受信アドレス、ProtocolID,DATAフィールドは有効であること。
nyatla 109:18f12ac01097 287 */
nyatla 109:18f12ac01097 288 NyLPC_TUInt16 NyLPC_TIPv6Header_makeTcpChecksum(
nyatla 109:18f12ac01097 289 struct NyLPC_TIPv6Header* i_iph,
nyatla 109:18f12ac01097 290 NyLPC_TUInt16 i_len)
nyatla 109:18f12ac01097 291 {
nyatla 109:18f12ac01097 292 NyLPC_TUInt16 sum;
nyatla 109:18f12ac01097 293 NyLPC_TUInt16 len;
nyatla 109:18f12ac01097 294 len = i_len;
nyatla 109:18f12ac01097 295 /*TCP疑似ヘッダ部分*/
nyatla 109:18f12ac01097 296 /* IP protocol and length fields. This addition cannot carry. */
nyatla 109:18f12ac01097 297 sum = len + i_iph->proto;
nyatla 109:18f12ac01097 298 /* Sum IP source and destination addresses. */
nyatla 109:18f12ac01097 299 sum = NyLPC_uip_chksum(sum, (NyLPC_TUInt8 *) &(i_iph->srcipaddr), 2 * sizeof(uip_ip6addr_t));
nyatla 109:18f12ac01097 300 /* Sum TCP header and data. */
nyatla 109:18f12ac01097 301 sum = NyLPC_uip_chksum(sum, (((NyLPC_TUInt8 *)(i_iph))+IPV6_HEADER_SIZE),len);
nyatla 109:18f12ac01097 302 // sum = chksum(sum, &uip_buf[UIP_IPH_LEN + UIP_LLH_LEN], i_len_of_data);
nyatla 109:18f12ac01097 303 return (sum == 0) ? 0xffff : NyLPC_htons(sum);
nyatla 109:18f12ac01097 304 }
nyatla 109:18f12ac01097 305
nyatla 109:18f12ac01097 306
nyatla 109:18f12ac01097 307
nyatla 109:18f12ac01097 308 /*--------------------------------------------------------------------------------
nyatla 109:18f12ac01097 309 *
nyatla 109:18f12ac01097 310 * struct NyLPC_TTcpHeader
nyatla 109:18f12ac01097 311 *
nyatla 109:18f12ac01097 312 *------------------------------------------------------------------------------*/
nyatla 109:18f12ac01097 313
nyatla 109:18f12ac01097 314
nyatla 109:18f12ac01097 315 /**
nyatla 109:18f12ac01097 316 * MMSオプションの値を返す。
nyatla 109:18f12ac01097 317 */
nyatla 109:18f12ac01097 318 NyLPC_TBool NyLPC_TTcpHeader_getTcpMmsOpt(
nyatla 109:18f12ac01097 319 const struct NyLPC_TTcpHeader* i_struct,NyLPC_TUInt16* o_val)
nyatla 109:18f12ac01097 320 {
nyatla 109:18f12ac01097 321 NyLPC_TUInt8* opt;
nyatla 109:18f12ac01097 322 opt=NyLPC_TTcpHeader_getTcpOptFragmentPtr(i_struct,TCP_OPT_MSS);
nyatla 109:18f12ac01097 323 if(opt!=NULL){
nyatla 109:18f12ac01097 324 if (*(opt+1) == TCP_OPT_MSS_LEN)
nyatla 109:18f12ac01097 325 {
nyatla 109:18f12ac01097 326 // An MSS option with the right option length.
nyatla 109:18f12ac01097 327 *o_val = ((NyLPC_TUInt16) (*(opt+2)) << 8) | (NyLPC_TUInt16) (*(opt + 3));
nyatla 109:18f12ac01097 328 //And we are done processing options.
nyatla 109:18f12ac01097 329 return NyLPC_TBool_TRUE;
nyatla 109:18f12ac01097 330 }
nyatla 109:18f12ac01097 331 }
nyatla 109:18f12ac01097 332 return NyLPC_TBool_FALSE;
nyatla 109:18f12ac01097 333 }
nyatla 109:18f12ac01097 334
nyatla 109:18f12ac01097 335 #define DEFAULT_TCP_HEADER_LEN 20
nyatla 109:18f12ac01097 336 /**
nyatla 109:18f12ac01097 337 * TCPフラグメントのポインタを返す。
nyatla 109:18f12ac01097 338 */
nyatla 109:18f12ac01097 339 NyLPC_TUInt8* NyLPC_TTcpHeader_getTcpOptFragmentPtr(
nyatla 109:18f12ac01097 340 const struct NyLPC_TTcpHeader* i_struct,
nyatla 109:18f12ac01097 341 NyLPC_TUInt8 i_opt_id)
nyatla 109:18f12ac01097 342 {
nyatla 109:18f12ac01097 343 NyLPC_TUInt8 opt;
nyatla 109:18f12ac01097 344 int c;
nyatla 109:18f12ac01097 345 NyLPC_TUInt8* opt_buf=((NyLPC_TUInt8*)(i_struct+1));
nyatla 109:18f12ac01097 346
nyatla 109:18f12ac01097 347 /* Parse the TCP MSS option, if present. */
nyatla 109:18f12ac01097 348 if ((i_struct->tcpoffset & 0xf0) > 0x50){
nyatla 109:18f12ac01097 349 for (c = 0; c < ((i_struct->tcpoffset >> 4) - 5) << 2;)
nyatla 109:18f12ac01097 350 {
nyatla 109:18f12ac01097 351 opt=opt_buf[c];
nyatla 109:18f12ac01097 352 if(opt==i_opt_id){
nyatla 109:18f12ac01097 353 return opt_buf+c;//found!
nyatla 109:18f12ac01097 354 }
nyatla 109:18f12ac01097 355 switch(opt)
nyatla 109:18f12ac01097 356 {
nyatla 109:18f12ac01097 357 case TCP_OPT_NOOP:
nyatla 109:18f12ac01097 358 continue;//NOP option.
nyatla 109:18f12ac01097 359 case TCP_OPT_END:
nyatla 109:18f12ac01097 360 return NULL;//End of options.
nyatla 109:18f12ac01097 361 default:
nyatla 109:18f12ac01097 362 // All other options have a length field, so that we easily can skip past them.
nyatla 109:18f12ac01097 363 if (opt_buf[1 + c] == 0) {
nyatla 109:18f12ac01097 364 // If the length field is zero, the options are malformed and we don't process them further.
nyatla 109:18f12ac01097 365 NyLPC_OnErrorGoto(ERROR_INVALID_OPTION);
nyatla 109:18f12ac01097 366 }
nyatla 109:18f12ac01097 367 c += opt_buf[1 + c];
nyatla 109:18f12ac01097 368 }
nyatla 109:18f12ac01097 369 }
nyatla 109:18f12ac01097 370 }
nyatla 109:18f12ac01097 371 ERROR_INVALID_OPTION:
nyatla 109:18f12ac01097 372 return NULL;
nyatla 109:18f12ac01097 373 }
nyatla 109:18f12ac01097 374 /*
nyatla 109:18f12ac01097 375 * Optionパラメタを書きだす。
nyatla 109:18f12ac01097 376 */
nyatla 109:18f12ac01097 377 void NyLPC_TTcpHeader_setMmsOpt(NyLPC_TUInt8* i_opt_addr,NyLPC_TUInt16 i_mms)
nyatla 109:18f12ac01097 378 {
nyatla 109:18f12ac01097 379 i_opt_addr[0] = TCP_OPT_MSS;
nyatla 109:18f12ac01097 380 i_opt_addr[1] = TCP_OPT_MSS_LEN;
nyatla 109:18f12ac01097 381 i_opt_addr[2] = (i_mms) / 256;
nyatla 109:18f12ac01097 382 i_opt_addr[3] = (i_mms) & 255;
nyatla 109:18f12ac01097 383 return;
nyatla 109:18f12ac01097 384 }
nyatla 109:18f12ac01097 385
nyatla 109:18f12ac01097 386
nyatla 109:18f12ac01097 387 NyLPC_TUInt16 NyLPC_TTcpHeader_getHeaderLength(const struct NyLPC_TTcpHeader* ip_header)
nyatla 109:18f12ac01097 388 {
nyatla 109:18f12ac01097 389 return (ip_header->tcpoffset>>4)*4;
nyatla 109:18f12ac01097 390 }
nyatla 109:18f12ac01097 391 /*--------------------------------------------------------------------------------
nyatla 109:18f12ac01097 392 *
nyatla 109:18f12ac01097 393 * struct NyLPC_TUdpHeader
nyatla 109:18f12ac01097 394 *
nyatla 109:18f12ac01097 395 *------------------------------------------------------------------------------*/
nyatla 109:18f12ac01097 396
nyatla 109:18f12ac01097 397
nyatla 109:18f12ac01097 398
nyatla 109:18f12ac01097 399 /*--------------------------------------------------------------------------------
nyatla 109:18f12ac01097 400 *
nyatla 109:18f12ac01097 401 * struct NyLPC_TArpHeader
nyatla 109:18f12ac01097 402 *
nyatla 109:18f12ac01097 403 *------------------------------------------------------------------------------*/
nyatla 109:18f12ac01097 404 /**
nyatla 109:18f12ac01097 405 * i_req_addrを問い合わせるARP_REQUESTを生成します。
nyatla 109:18f12ac01097 406 */
nyatla 109:18f12ac01097 407 void NyLPC_TArpHeader_setArpRequest(
nyatla 109:18f12ac01097 408 struct NyLPC_TArpHeader* i_struct,
nyatla 109:18f12ac01097 409 const struct NyLPC_TIPv4Addr i_saddr,
nyatla 109:18f12ac01097 410 const struct NyLPC_TEthAddr* i_srceth,
nyatla 109:18f12ac01097 411 const struct NyLPC_TIPv4Addr* i_req_addr)
nyatla 109:18f12ac01097 412 {
nyatla 109:18f12ac01097 413 memset(i_struct->dhwaddr.addr, 0x00, 6);
nyatla 109:18f12ac01097 414 memcpy(i_struct->shwaddr.addr, i_srceth, 6);
nyatla 109:18f12ac01097 415 i_struct->dipaddr=*i_req_addr;
nyatla 109:18f12ac01097 416 i_struct->sipaddr=i_saddr;
nyatla 109:18f12ac01097 417 i_struct->opcode = NyLPC_HTONS(ARP_REQUEST); /* ARP request. */
nyatla 109:18f12ac01097 418 i_struct->hwtype = NyLPC_HTONS(ARP_HWTYPE_ETH);
nyatla 109:18f12ac01097 419 i_struct->protocol = NyLPC_HTONS(NyLPC_TEthernetIIHeader_TYPE_IP);
nyatla 109:18f12ac01097 420 i_struct->hwlen = 6;
nyatla 109:18f12ac01097 421 i_struct->protolen = 4;
nyatla 109:18f12ac01097 422 return;
nyatla 109:18f12ac01097 423 }
nyatla 109:18f12ac01097 424
nyatla 109:18f12ac01097 425 /*--------------------------------------------------------------------------------
nyatla 109:18f12ac01097 426 *
nyatla 109:18f12ac01097 427 * class IPv4Route
nyatla 109:18f12ac01097 428 *
nyatla 109:18f12ac01097 429 *------------------------------------------------------------------------------*/
nyatla 109:18f12ac01097 430
nyatla 109:18f12ac01097 431
nyatla 109:18f12ac01097 432