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/net/dhcp/NyLPC_cDhcpClient.c@37:fc4b4fd6a649, 2013-06-19 (annotated)

Committer:
nyatla
Date:
Wed Jun 19 09:33:01 2013 +0000
Revision:
37:fc4b4fd6a649
Child:
56:d38b6ce8c63b
update; MiMic Core r263; add mDNS service,DHCP client,APIPA client

Who changed what in which revision?

UserRevisionLine numberNew 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)2011-2013 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_cDhcpClient.h"
nyatla 37:fc4b4fd6a649 27 #include <stdio.h>
nyatla 37:fc4b4fd6a649 28 #include <string.h>
nyatla 37:fc4b4fd6a649 29
nyatla 37:fc4b4fd6a649 30 struct NyLPC_TDhcpHeader
nyatla 37:fc4b4fd6a649 31 {
nyatla 37:fc4b4fd6a649 32 NyLPC_TUInt8 op;
nyatla 37:fc4b4fd6a649 33 NyLPC_TUInt8 htype;
nyatla 37:fc4b4fd6a649 34 NyLPC_TUInt8 hlen;
nyatla 37:fc4b4fd6a649 35 NyLPC_TUInt8 hops;
nyatla 37:fc4b4fd6a649 36 NyLPC_TUInt32 xid;
nyatla 37:fc4b4fd6a649 37 NyLPC_TUInt16 secs;
nyatla 37:fc4b4fd6a649 38 NyLPC_TUInt16 flags;
nyatla 37:fc4b4fd6a649 39 NyLPC_TUInt32 ciaddr;
nyatla 37:fc4b4fd6a649 40 NyLPC_TUInt32 yiaddr;
nyatla 37:fc4b4fd6a649 41 NyLPC_TUInt32 siaddr;
nyatla 37:fc4b4fd6a649 42 NyLPC_TUInt32 giaddr;
nyatla 37:fc4b4fd6a649 43 struct{
nyatla 37:fc4b4fd6a649 44 struct NyLPC_TEthAddr emac;
nyatla 37:fc4b4fd6a649 45 NyLPC_TChar padding[10];
nyatla 37:fc4b4fd6a649 46 }chaddr;
nyatla 37:fc4b4fd6a649 47 NyLPC_TChar sname[64];
nyatla 37:fc4b4fd6a649 48 NyLPC_TChar file[128];
nyatla 37:fc4b4fd6a649 49 }PACK_STRUCT_END;
nyatla 37:fc4b4fd6a649 50
nyatla 37:fc4b4fd6a649 51 #define NyLPC_TDhcpHeader_BOOTREQUEST 1
nyatla 37:fc4b4fd6a649 52 #define NyLPC_TDhcpHeader_BOOTREPLY 2
nyatla 37:fc4b4fd6a649 53
nyatla 37:fc4b4fd6a649 54 #define DHCP_OPT_ID_ROUTER 3
nyatla 37:fc4b4fd6a649 55 #define DHCP_OPT_ID_SERVER_ID 54
nyatla 37:fc4b4fd6a649 56 #define DHCP_OPT_ID_NETMASK 1
nyatla 37:fc4b4fd6a649 57 #define DHCP_OPT_ID_MESSAGETYPE 53
nyatla 37:fc4b4fd6a649 58
nyatla 37:fc4b4fd6a649 59
nyatla 37:fc4b4fd6a649 60
nyatla 37:fc4b4fd6a649 61 /**
nyatla 37:fc4b4fd6a649 62 * DHCPパケットから32bit値を読み出す。
nyatla 37:fc4b4fd6a649 63 * @return
nyatla 37:fc4b4fd6a649 64 * ネットワークオーダー
nyatla 37:fc4b4fd6a649 65 */
nyatla 37:fc4b4fd6a649 66 static NyLPC_TBool getUInt32Option(const NyLPC_TUInt8* i_buf,NyLPC_TUInt16 len,NyLPC_TUInt8 i_id,NyLPC_TUInt32* o_v)
nyatla 37:fc4b4fd6a649 67 {
nyatla 37:fc4b4fd6a649 68 const NyLPC_TUInt8* p=i_buf+sizeof(struct NyLPC_TDhcpHeader)+4;
nyatla 37:fc4b4fd6a649 69 while(*p!=0x00 && p<(i_buf+len-5)){
nyatla 37:fc4b4fd6a649 70 if(*p==i_id){
nyatla 37:fc4b4fd6a649 71 if(*(p+1)==4){
nyatla 37:fc4b4fd6a649 72 *o_v=*((NyLPC_TUInt32*)(p+2));
nyatla 37:fc4b4fd6a649 73 return NyLPC_TBool_TRUE;
nyatla 37:fc4b4fd6a649 74 }
nyatla 37:fc4b4fd6a649 75 }else{
nyatla 37:fc4b4fd6a649 76 p+=(*(p+1))+2;
nyatla 37:fc4b4fd6a649 77 }
nyatla 37:fc4b4fd6a649 78 }
nyatla 37:fc4b4fd6a649 79 return NyLPC_TBool_FALSE;
nyatla 37:fc4b4fd6a649 80 }
nyatla 37:fc4b4fd6a649 81 static NyLPC_TBool getUInt8Option(const NyLPC_TUInt8* i_buf,NyLPC_TUInt16 len,NyLPC_TUInt8 i_id,NyLPC_TUInt8* o_v)
nyatla 37:fc4b4fd6a649 82 {
nyatla 37:fc4b4fd6a649 83 const NyLPC_TUInt8* p=i_buf+sizeof(struct NyLPC_TDhcpHeader)+4;
nyatla 37:fc4b4fd6a649 84 while(*p!=0x00 && p<(i_buf+len-5)){
nyatla 37:fc4b4fd6a649 85 if(*p==i_id){
nyatla 37:fc4b4fd6a649 86 if(*(p+1)==1){
nyatla 37:fc4b4fd6a649 87 *o_v=*(p+2);
nyatla 37:fc4b4fd6a649 88 return NyLPC_TBool_TRUE;
nyatla 37:fc4b4fd6a649 89 }
nyatla 37:fc4b4fd6a649 90 }else{
nyatla 37:fc4b4fd6a649 91 p+=(*(p+1))+2;
nyatla 37:fc4b4fd6a649 92 }
nyatla 37:fc4b4fd6a649 93 }
nyatla 37:fc4b4fd6a649 94 return NyLPC_TBool_FALSE;
nyatla 37:fc4b4fd6a649 95 }
nyatla 37:fc4b4fd6a649 96 static NyLPC_TBool NyLPC_TDhcpHeader_parseDHCPOFFER(const NyLPC_TUInt8* i_buf,NyLPC_TUInt16 i_len,NyLPC_TUInt32 i_xid,NyLPC_TcIPv4Config_t* result)
nyatla 37:fc4b4fd6a649 97 {
nyatla 37:fc4b4fd6a649 98 struct NyLPC_TDhcpHeader* p=(struct NyLPC_TDhcpHeader*)i_buf;
nyatla 37:fc4b4fd6a649 99 //XIDのチェック
nyatla 37:fc4b4fd6a649 100 if(p->xid!=NyLPC_HTONL(i_xid)){
nyatla 37:fc4b4fd6a649 101 return NyLPC_TBool_FALSE;
nyatla 37:fc4b4fd6a649 102 }
nyatla 37:fc4b4fd6a649 103 //サーバ情報をIPへ保存
nyatla 37:fc4b4fd6a649 104 if(!getUInt32Option(i_buf,i_len,DHCP_OPT_ID_SERVER_ID,&result->ip_addr.v)){
nyatla 37:fc4b4fd6a649 105 return NyLPC_TBool_FALSE;
nyatla 37:fc4b4fd6a649 106 }
nyatla 37:fc4b4fd6a649 107 return NyLPC_TBool_TRUE;
nyatla 37:fc4b4fd6a649 108 }
nyatla 37:fc4b4fd6a649 109
nyatla 37:fc4b4fd6a649 110 static NyLPC_TBool NyLPC_TDhcpHeader_parseDHCPACK(const NyLPC_TUInt8* i_buf,NyLPC_TUInt16 i_len,NyLPC_TUInt32 i_xid,NyLPC_TcIPv4Config_t* result)
nyatla 37:fc4b4fd6a649 111 {
nyatla 37:fc4b4fd6a649 112 struct NyLPC_TDhcpHeader* p=(struct NyLPC_TDhcpHeader*)i_buf;
nyatla 37:fc4b4fd6a649 113 //XIDのチェック
nyatla 37:fc4b4fd6a649 114 if(p->xid!=NyLPC_HTONL(i_xid)){
nyatla 37:fc4b4fd6a649 115 return NyLPC_TBool_FALSE;
nyatla 37:fc4b4fd6a649 116 }
nyatla 37:fc4b4fd6a649 117 if(!getUInt32Option(i_buf,i_len,DHCP_OPT_ID_ROUTER,&result->dr_addr.v)){
nyatla 37:fc4b4fd6a649 118 result->dr_addr=NyLPC_TIPv4Addr_ZERO;
nyatla 37:fc4b4fd6a649 119 }
nyatla 37:fc4b4fd6a649 120 if(!getUInt32Option(i_buf,i_len,DHCP_OPT_ID_NETMASK,&result->netmask.v)){
nyatla 37:fc4b4fd6a649 121 result->netmask=NyLPC_TIPv4Addr_ZERO;
nyatla 37:fc4b4fd6a649 122 }
nyatla 37:fc4b4fd6a649 123 result->ip_addr.v=p->yiaddr;
nyatla 37:fc4b4fd6a649 124 return NyLPC_TBool_TRUE;
nyatla 37:fc4b4fd6a649 125 }
nyatla 37:fc4b4fd6a649 126
nyatla 37:fc4b4fd6a649 127 static void NyLPC_TDhcpHeader_setDHCPDISCOVER(char* i_buf,NyLPC_TUInt32 i_xid,const struct NyLPC_TEthAddr* emac,NyLPC_TUInt16* o_len)
nyatla 37:fc4b4fd6a649 128 {
nyatla 37:fc4b4fd6a649 129 struct NyLPC_TDhcpHeader* p=(struct NyLPC_TDhcpHeader*)i_buf;
nyatla 37:fc4b4fd6a649 130 memset(i_buf,0,sizeof(struct NyLPC_TDhcpHeader));
nyatla 37:fc4b4fd6a649 131 p->op=NyLPC_TDhcpHeader_BOOTREQUEST;
nyatla 37:fc4b4fd6a649 132 p->htype=1;
nyatla 37:fc4b4fd6a649 133 p->hlen=6;
nyatla 37:fc4b4fd6a649 134 p->xid=NyLPC_HTONL(i_xid);
nyatla 37:fc4b4fd6a649 135 p->chaddr.emac=*emac;
nyatla 37:fc4b4fd6a649 136 memcpy(i_buf+sizeof(struct NyLPC_TDhcpHeader),
nyatla 37:fc4b4fd6a649 137 "\x63\x82\x53\x63" //4
nyatla 37:fc4b4fd6a649 138 "\x35\x01\x01" //3 MESSAGE TYPE
nyatla 37:fc4b4fd6a649 139 "\x37\x03\x01\x03\x06" //5 REQUEST LIST(1,3,6)
nyatla 37:fc4b4fd6a649 140 "\x3d\x07\x00\x00\x00\x00\x00\x00\x10" //9 CLIENT INDIFIRE
nyatla 37:fc4b4fd6a649 141 "\xff",4+3+5+9+1);
nyatla 37:fc4b4fd6a649 142 //emacの上書き
nyatla 37:fc4b4fd6a649 143 memcpy((i_buf+sizeof(struct NyLPC_TDhcpHeader)+4+3+5+2),emac->addr,6);
nyatla 37:fc4b4fd6a649 144 //送信するパケットの長さ
nyatla 37:fc4b4fd6a649 145 *o_len=sizeof(struct NyLPC_TDhcpHeader)+4+3+5+9+1;
nyatla 37:fc4b4fd6a649 146 return;
nyatla 37:fc4b4fd6a649 147 }
nyatla 37:fc4b4fd6a649 148 static void NyLPC_TDhcpHeader_setDHCPREQUEST(char* i_buf,NyLPC_TUInt32 i_xid,const struct NyLPC_TIPv4Addr* i_sid,const struct NyLPC_TEthAddr* emac,NyLPC_TUInt16* o_len)
nyatla 37:fc4b4fd6a649 149 {
nyatla 37:fc4b4fd6a649 150 struct NyLPC_TDhcpHeader* p=(struct NyLPC_TDhcpHeader*)i_buf;
nyatla 37:fc4b4fd6a649 151 memset(i_buf,0,sizeof(struct NyLPC_TDhcpHeader));
nyatla 37:fc4b4fd6a649 152 p->op=NyLPC_TDhcpHeader_BOOTREQUEST;
nyatla 37:fc4b4fd6a649 153 p->htype=1;
nyatla 37:fc4b4fd6a649 154 p->hlen=6;
nyatla 37:fc4b4fd6a649 155 p->xid=NyLPC_HTONL(i_xid);
nyatla 37:fc4b4fd6a649 156 p->chaddr.emac=*emac;
nyatla 37:fc4b4fd6a649 157 memcpy(i_buf+sizeof(struct NyLPC_TDhcpHeader),
nyatla 37:fc4b4fd6a649 158 "\x63\x82\x53\x63" //4
nyatla 37:fc4b4fd6a649 159 "\x35\x01\x03" //3 MESSAGE TYPE
nyatla 37:fc4b4fd6a649 160 "\x37\x03\x01\x03\x06" //5 REQUEST LIST(1,3,6)
nyatla 37:fc4b4fd6a649 161 "\x3d\x07\x00\x00\x00\x00\x00\x00\x10" //9 CLIENT INDIFIRE
nyatla 37:fc4b4fd6a649 162 "\x36\x04\x00\x00\x00\x00" // 6 SERVER ID
nyatla 37:fc4b4fd6a649 163 "\xff",4+3+5+9+6+1);
nyatla 37:fc4b4fd6a649 164 //emacの上書き
nyatla 37:fc4b4fd6a649 165 memcpy((i_buf+sizeof(struct NyLPC_TDhcpHeader)+4+3+5+2),emac->addr,6);
nyatla 37:fc4b4fd6a649 166 //sidの上書き
nyatla 37:fc4b4fd6a649 167 memcpy((i_buf+sizeof(struct NyLPC_TDhcpHeader)+4+3+5+9+2),i_sid,4);
nyatla 37:fc4b4fd6a649 168 //送信するパケットの長さ
nyatla 37:fc4b4fd6a649 169 *o_len=sizeof(struct NyLPC_TDhcpHeader)+4+3+5+9+6+1;
nyatla 37:fc4b4fd6a649 170 return;
nyatla 37:fc4b4fd6a649 171 }
nyatla 37:fc4b4fd6a649 172
nyatla 37:fc4b4fd6a649 173
nyatla 37:fc4b4fd6a649 174
nyatla 37:fc4b4fd6a649 175 #define TcDhcpSock_ST_WAIT_OFFER 1
nyatla 37:fc4b4fd6a649 176 #define TcDhcpSock_ST_WAIT_OFFER_OK 2
nyatla 37:fc4b4fd6a649 177 #define TcDhcpSock_ST_WAIT_ACK 3
nyatla 37:fc4b4fd6a649 178 #define TcDhcpSock_ST_WAIT_ACK_OK 4
nyatla 37:fc4b4fd6a649 179 #define TcDhcpSock_ST_DONE_NG 3
nyatla 37:fc4b4fd6a649 180 #define TcDhcpSock_ST_DONE_OK 4
nyatla 37:fc4b4fd6a649 181
nyatla 37:fc4b4fd6a649 182
nyatla 37:fc4b4fd6a649 183
nyatla 37:fc4b4fd6a649 184
nyatla 37:fc4b4fd6a649 185 #define DHCP_OPT_ID_MESSAGETYPE_ACK 5
nyatla 37:fc4b4fd6a649 186 #define DHCP_OPT_ID_MESSAGETYPE_OFFER 2
nyatla 37:fc4b4fd6a649 187
nyatla 37:fc4b4fd6a649 188 static NyLPC_TBool onPacket(NyLPC_TcUdpSocket_t* i_inst,const void* i_buf,const struct NyLPC_TIPv4RxInfo* i_info);
nyatla 37:fc4b4fd6a649 189
nyatla 37:fc4b4fd6a649 190 /**
nyatla 37:fc4b4fd6a649 191 * DHCPソケットを作成します。
nyatla 37:fc4b4fd6a649 192 */
nyatla 37:fc4b4fd6a649 193 NyLPC_TBool NyLPC_cDhcpClient_initialize(NyLPC_TcDhcpClient_t* i_inst)
nyatla 37:fc4b4fd6a649 194 {
nyatla 37:fc4b4fd6a649 195 if(!NyLPC_cUdpSocket_initialize(&(i_inst->super),68,NULL,0)){
nyatla 37:fc4b4fd6a649 196 return NyLPC_TBool_FALSE;
nyatla 37:fc4b4fd6a649 197 }
nyatla 37:fc4b4fd6a649 198 NyLPC_cUdpSocket_setBroadcast(&(i_inst->super));
nyatla 37:fc4b4fd6a649 199 NyLPC_cUdpSocket_setOnRxHandler(&(i_inst->super),onPacket);
nyatla 37:fc4b4fd6a649 200 return NyLPC_TBool_TRUE;
nyatla 37:fc4b4fd6a649 201 }
nyatla 37:fc4b4fd6a649 202 void NyLPC_cDhcpClient_finalize(NyLPC_TcDhcpClient_t* i_inst)
nyatla 37:fc4b4fd6a649 203 {
nyatla 37:fc4b4fd6a649 204 NyLPC_cUdpSocket_finalize(&(i_inst->super));
nyatla 37:fc4b4fd6a649 205 }
nyatla 37:fc4b4fd6a649 206 #define TIMEOUT_SOCKAPI_MS 1000
nyatla 37:fc4b4fd6a649 207 #define TIMEOUT_RECVMSG_MS 3000
nyatla 37:fc4b4fd6a649 208
nyatla 37:fc4b4fd6a649 209 /**
nyatla 37:fc4b4fd6a649 210 * ネットワークを更新します。
nyatla 37:fc4b4fd6a649 211 * emac/default_mssを設定したネットワークが必要です。
nyatla 37:fc4b4fd6a649 212 */
nyatla 37:fc4b4fd6a649 213 static NyLPC_TBool NyLPC_cDhcpClient_dhcpRequest(NyLPC_TcDhcpClient_t* i_sock,NyLPC_TcIPv4Config_t* i_result)
nyatla 37:fc4b4fd6a649 214 {
nyatla 37:fc4b4fd6a649 215 char* buf;
nyatla 37:fc4b4fd6a649 216 NyLPC_TcStopwatch_t sw;
nyatla 37:fc4b4fd6a649 217 NyLPC_TUInt16 s;
nyatla 37:fc4b4fd6a649 218 NyLPC_TInt16 hint=sizeof(struct NyLPC_TDhcpHeader)+128;
nyatla 37:fc4b4fd6a649 219 i_sock->txid+=(*(NyLPC_TUInt16*)(&(i_result->eth_mac.addr[2])))+(*(NyLPC_TUInt16*)(&(i_result->eth_mac.addr[4])));
nyatla 37:fc4b4fd6a649 220 i_sock->_result=i_result;
nyatla 37:fc4b4fd6a649 221 buf=NyLPC_cUdpSocket_allocSendBuf(&i_sock->super,hint,&s,TIMEOUT_SOCKAPI_MS);
nyatla 37:fc4b4fd6a649 222 if(buf==NULL || s<hint){
nyatla 37:fc4b4fd6a649 223 return NyLPC_TBool_FALSE;
nyatla 37:fc4b4fd6a649 224 }
nyatla 37:fc4b4fd6a649 225 NyLPC_TDhcpHeader_setDHCPDISCOVER(buf,i_sock->txid,&i_sock->_result->eth_mac,&s);
nyatla 37:fc4b4fd6a649 226 i_sock->_status=TcDhcpSock_ST_WAIT_OFFER;
nyatla 37:fc4b4fd6a649 227 if(!NyLPC_cUdpSocket_psend(&i_sock->super,&NyLPC_TIPv4Addr_BROADCAST,67,buf,s)){
nyatla 37:fc4b4fd6a649 228 NyLPC_cUdpSocket_releaseSendBuf(&i_sock->super,buf);
nyatla 37:fc4b4fd6a649 229 return NyLPC_TBool_FALSE;
nyatla 37:fc4b4fd6a649 230 }
nyatla 37:fc4b4fd6a649 231 NyLPC_cStopwatch_initialize(&sw);
nyatla 37:fc4b4fd6a649 232 NyLPC_cStopwatch_startExpire(&sw,TIMEOUT_RECVMSG_MS);
nyatla 37:fc4b4fd6a649 233 while(i_sock->_status==TcDhcpSock_ST_WAIT_OFFER){
nyatla 37:fc4b4fd6a649 234 if(NyLPC_cStopwatch_isExpired(&sw)){
nyatla 37:fc4b4fd6a649 235 return NyLPC_TBool_FALSE;
nyatla 37:fc4b4fd6a649 236 }
nyatla 37:fc4b4fd6a649 237 }
nyatla 37:fc4b4fd6a649 238 //レスポンスのチェック
nyatla 37:fc4b4fd6a649 239 if(i_sock->_status!=TcDhcpSock_ST_WAIT_OFFER_OK)
nyatla 37:fc4b4fd6a649 240 {
nyatla 37:fc4b4fd6a649 241 return NyLPC_TBool_FALSE;
nyatla 37:fc4b4fd6a649 242 }
nyatla 37:fc4b4fd6a649 243 buf=NyLPC_cUdpSocket_allocSendBuf(&i_sock->super,hint,&s,TIMEOUT_SOCKAPI_MS);
nyatla 37:fc4b4fd6a649 244 if(buf==NULL || s<hint){
nyatla 37:fc4b4fd6a649 245 return NyLPC_TBool_FALSE;
nyatla 37:fc4b4fd6a649 246 }
nyatla 37:fc4b4fd6a649 247 NyLPC_TDhcpHeader_setDHCPREQUEST(buf,i_sock->txid,&(i_sock->_result->ip_addr),&i_sock->_result->eth_mac,&s);
nyatla 37:fc4b4fd6a649 248 i_sock->_status=TcDhcpSock_ST_WAIT_ACK;
nyatla 37:fc4b4fd6a649 249 if(!NyLPC_cUdpSocket_psend(&i_sock->super,&NyLPC_TIPv4Addr_BROADCAST,67,buf,s)){
nyatla 37:fc4b4fd6a649 250 NyLPC_cUdpSocket_releaseSendBuf(&i_sock->super,buf);
nyatla 37:fc4b4fd6a649 251 return NyLPC_TBool_FALSE;
nyatla 37:fc4b4fd6a649 252 }
nyatla 37:fc4b4fd6a649 253 NyLPC_cStopwatch_startExpire(&sw,TIMEOUT_RECVMSG_MS);
nyatla 37:fc4b4fd6a649 254 while(i_sock->_status==TcDhcpSock_ST_WAIT_ACK){
nyatla 37:fc4b4fd6a649 255 if(NyLPC_cStopwatch_isExpired(&sw)){
nyatla 37:fc4b4fd6a649 256 return NyLPC_TBool_FALSE;
nyatla 37:fc4b4fd6a649 257 }
nyatla 37:fc4b4fd6a649 258 }
nyatla 37:fc4b4fd6a649 259 //レスポンスのチェック
nyatla 37:fc4b4fd6a649 260 if(i_sock->_status!=TcDhcpSock_ST_WAIT_ACK_OK)
nyatla 37:fc4b4fd6a649 261 {
nyatla 37:fc4b4fd6a649 262 return NyLPC_TBool_FALSE;
nyatla 37:fc4b4fd6a649 263 }
nyatla 37:fc4b4fd6a649 264 return NyLPC_TBool_TRUE;
nyatla 37:fc4b4fd6a649 265 }
nyatla 37:fc4b4fd6a649 266
nyatla 37:fc4b4fd6a649 267 /**
nyatla 37:fc4b4fd6a649 268 * NyLPC_TcIPv4Config_tをDHCPで更新します。
nyatla 37:fc4b4fd6a649 269 * この関数をコールする時は、サービスは停止中でなければなりません。
nyatla 37:fc4b4fd6a649 270 * @param i_cfg
nyatla 37:fc4b4fd6a649 271 * 更新するi_cfg構造体。
nyatla 37:fc4b4fd6a649 272 * emac,default_mssは設定済である必要があります。他のフィールド値は不定で構いません。
nyatla 37:fc4b4fd6a649 273 * 更新されるフィールドは、ip,netmast,default_rootの3つです。
nyatla 37:fc4b4fd6a649 274 * @return
nyatla 37:fc4b4fd6a649 275 * 更新に成功した場合TRUE
nyatla 37:fc4b4fd6a649 276 */
nyatla 37:fc4b4fd6a649 277 NyLPC_TBool NyLPC_cDhcpClient_requestAddr(NyLPC_TcDhcpClient_t* i_inst,NyLPC_TcIPv4Config_t* i_cfg,NyLPC_TInt16 i_repeat)
nyatla 37:fc4b4fd6a649 278 {
nyatla 37:fc4b4fd6a649 279 NyLPC_TInt16 i;
nyatla 37:fc4b4fd6a649 280 NyLPC_TBool ret=NyLPC_TBool_FALSE;
nyatla 37:fc4b4fd6a649 281 NyLPC_TcIPv4Config_t c2;
nyatla 37:fc4b4fd6a649 282 //工場出荷時設定でリセットしてIPを0に
nyatla 37:fc4b4fd6a649 283 NyLPC_cIPv4Config_initialzeCopy(&c2,i_cfg);
nyatla 37:fc4b4fd6a649 284 NyLPC_cIPv4Config_setIp(&c2,&NyLPC_TIPv4Addr_ZERO,&NyLPC_TIPv4Addr_ZERO);
nyatla 37:fc4b4fd6a649 285 NyLPC_cIPv4Config_setDefaultRoute(&c2,&NyLPC_TIPv4Addr_ZERO);
nyatla 37:fc4b4fd6a649 286 //netを開始
nyatla 37:fc4b4fd6a649 287 NyLPC_cUipService_start(&c2);
nyatla 37:fc4b4fd6a649 288 for(i=i_repeat-1;i>=0;i--){
nyatla 37:fc4b4fd6a649 289 ret=NyLPC_cDhcpClient_dhcpRequest(i_inst,i_cfg);
nyatla 37:fc4b4fd6a649 290 if(ret){
nyatla 37:fc4b4fd6a649 291 break;
nyatla 37:fc4b4fd6a649 292 }
nyatla 37:fc4b4fd6a649 293 }
nyatla 37:fc4b4fd6a649 294 NyLPC_cUipService_stop();
nyatla 37:fc4b4fd6a649 295 NyLPC_cIPv4Config_finalize(&c2);
nyatla 37:fc4b4fd6a649 296 return ret;
nyatla 37:fc4b4fd6a649 297 }
nyatla 37:fc4b4fd6a649 298
nyatla 37:fc4b4fd6a649 299
nyatla 37:fc4b4fd6a649 300
nyatla 37:fc4b4fd6a649 301 static NyLPC_TBool onPacket(NyLPC_TcUdpSocket_t* i_inst,const void* i_buf,const struct NyLPC_TIPv4RxInfo* i_info)
nyatla 37:fc4b4fd6a649 302 {
nyatla 37:fc4b4fd6a649 303 NyLPC_TUInt8 mt;//message type
nyatla 37:fc4b4fd6a649 304 NyLPC_TcDhcpClient_t* inst=(NyLPC_TcDhcpClient_t*)i_inst;
nyatla 37:fc4b4fd6a649 305 struct NyLPC_TDhcpHeader* dnsh=(struct NyLPC_TDhcpHeader*)i_buf;
nyatla 37:fc4b4fd6a649 306 if(i_info->size<sizeof(struct NyLPC_TDhcpHeader)+1){
nyatla 37:fc4b4fd6a649 307 return NyLPC_TBool_FALSE;//DROP
nyatla 37:fc4b4fd6a649 308 }
nyatla 37:fc4b4fd6a649 309 switch(inst->_status)
nyatla 37:fc4b4fd6a649 310 {
nyatla 37:fc4b4fd6a649 311 case TcDhcpSock_ST_WAIT_ACK:
nyatla 37:fc4b4fd6a649 312 if(dnsh->op!=NyLPC_TDhcpHeader_BOOTREPLY){
nyatla 37:fc4b4fd6a649 313 return NyLPC_TBool_FALSE;
nyatla 37:fc4b4fd6a649 314 }
nyatla 37:fc4b4fd6a649 315 if(!getUInt8Option(i_buf,i_info->size,DHCP_OPT_ID_MESSAGETYPE,&mt)){
nyatla 37:fc4b4fd6a649 316 return NyLPC_TBool_FALSE;
nyatla 37:fc4b4fd6a649 317 }
nyatla 37:fc4b4fd6a649 318 if(mt!=DHCP_OPT_ID_MESSAGETYPE_ACK){
nyatla 37:fc4b4fd6a649 319 return NyLPC_TBool_FALSE;
nyatla 37:fc4b4fd6a649 320 }
nyatla 37:fc4b4fd6a649 321 if(!NyLPC_TDhcpHeader_parseDHCPACK(i_buf,i_info->size,inst->txid,inst->_result)){
nyatla 37:fc4b4fd6a649 322 return NyLPC_TBool_FALSE;
nyatla 37:fc4b4fd6a649 323 }
nyatla 37:fc4b4fd6a649 324 inst->_status=TcDhcpSock_ST_WAIT_ACK_OK;
nyatla 37:fc4b4fd6a649 325 break;
nyatla 37:fc4b4fd6a649 326 case TcDhcpSock_ST_WAIT_OFFER:
nyatla 37:fc4b4fd6a649 327 if(dnsh->op!=NyLPC_TDhcpHeader_BOOTREPLY){
nyatla 37:fc4b4fd6a649 328 return NyLPC_TBool_FALSE;
nyatla 37:fc4b4fd6a649 329 }
nyatla 37:fc4b4fd6a649 330 if(!getUInt8Option(i_buf,i_info->size,DHCP_OPT_ID_MESSAGETYPE,&mt)){
nyatla 37:fc4b4fd6a649 331 return NyLPC_TBool_FALSE;
nyatla 37:fc4b4fd6a649 332 }
nyatla 37:fc4b4fd6a649 333 if(mt!=DHCP_OPT_ID_MESSAGETYPE_OFFER){
nyatla 37:fc4b4fd6a649 334 return NyLPC_TBool_FALSE;
nyatla 37:fc4b4fd6a649 335 }
nyatla 37:fc4b4fd6a649 336 if(!NyLPC_TDhcpHeader_parseDHCPOFFER(i_buf,i_info->size,inst->txid,inst->_result)){
nyatla 37:fc4b4fd6a649 337 return NyLPC_TBool_FALSE;
nyatla 37:fc4b4fd6a649 338 }
nyatla 37:fc4b4fd6a649 339 inst->_status=TcDhcpSock_ST_WAIT_OFFER_OK;
nyatla 37:fc4b4fd6a649 340 break;
nyatla 37:fc4b4fd6a649 341 }
nyatla 37:fc4b4fd6a649 342 return NyLPC_TBool_FALSE;
nyatla 37:fc4b4fd6a649 343
nyatla 37:fc4b4fd6a649 344 }