Ryo Iizuka / libMiMic

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Dependents:   MbedFileServer_1768MiniDK2 RedWireBridge IssueDebug_gcc MiMicRemoteMCU-for-Mbed ... more

core/uip/NyLPC_cIPv4.c@48:00d211aac2ec, 2013-08-07 (annotated)

Committer:
nyatla
Date:
Wed Aug 07 13:53:02 2013 +0000
Revision:
48:00d211aac2ec
Parent:
43:a182f2b5ff41
Child:
57:bc4330dfa62f
backup

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nyatla 0:142ee8b12fef 1 /*********************************************************************************
nyatla 0:142ee8b12fef 2 * PROJECT: MiMic
nyatla 0:142ee8b12fef 3 * --------------------------------------------------------------------------------
nyatla 0:142ee8b12fef 4 *
nyatla 0:142ee8b12fef 5 * This file is part of MiMic
nyatla 0:142ee8b12fef 6 * Copyright (C)2011 Ryo Iizuka
nyatla 0:142ee8b12fef 7 *
nyatla 0:142ee8b12fef 8 * MiMic is free software: you can redistribute it and/or modify
nyatla 0:142ee8b12fef 9 * it under the terms of the GNU Lesser General Public License as published
nyatla 0:142ee8b12fef 10 * by　the Free Software Foundation, either version 3 of the　License, or
nyatla 0:142ee8b12fef 11 * (at your option) any later version.
nyatla 0:142ee8b12fef 12 *
nyatla 0:142ee8b12fef 13 * This program is distributed in the hope that it will be useful,
nyatla 0:142ee8b12fef 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
nyatla 0:142ee8b12fef 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
nyatla 0:142ee8b12fef 16 * GNU General Public License for more details.
nyatla 0:142ee8b12fef 17 *
nyatla 0:142ee8b12fef 18 * You should have received a copy of the GNU Lesser General Public License
nyatla 0:142ee8b12fef 19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
nyatla 0:142ee8b12fef 20 *
nyatla 0:142ee8b12fef 21 * For further information please contact.
nyatla 0:142ee8b12fef 22 * http://nyatla.jp/
nyatla 0:142ee8b12fef 23 * <airmail(at)ebony.plala.or.jp> or <nyatla(at)nyatla.jp>
nyatla 0:142ee8b12fef 24 *
nyatla 0:142ee8b12fef 25 *
nyatla 0:142ee8b12fef 26 * Parts of this file were leveraged from uIP:
nyatla 0:142ee8b12fef 27 *
nyatla 0:142ee8b12fef 28 * Copyright (c) 2001-2003, Adam Dunkels.
nyatla 0:142ee8b12fef 29 * All rights reserved.
nyatla 0:142ee8b12fef 30 *
nyatla 0:142ee8b12fef 31 * Redistribution and use in source and binary forms, with or without
nyatla 0:142ee8b12fef 32 * modification, are permitted provided that the following conditions
nyatla 0:142ee8b12fef 33 * are met:
nyatla 0:142ee8b12fef 34 * 1. Redistributions of source code must retain the above copyright
nyatla 0:142ee8b12fef 35 * notice, this list of conditions and the following disclaimer.
nyatla 0:142ee8b12fef 36 * 2. Redistributions in binary form must reproduce the above copyright
nyatla 0:142ee8b12fef 37 * notice, this list of conditions and the following disclaimer in the
nyatla 0:142ee8b12fef 38 * documentation and/or other materials provided with the distribution.
nyatla 0:142ee8b12fef 39 * 3. The name of the author may not be used to endorse or promote
nyatla 0:142ee8b12fef 40 * products derived from this software without specific prior
nyatla 0:142ee8b12fef 41 * written permission.
nyatla 0:142ee8b12fef 42 *
nyatla 0:142ee8b12fef 43 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
nyatla 0:142ee8b12fef 44 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
nyatla 0:142ee8b12fef 45 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
nyatla 0:142ee8b12fef 46 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
nyatla 0:142ee8b12fef 47 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
nyatla 0:142ee8b12fef 48 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
nyatla 0:142ee8b12fef 49 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
nyatla 0:142ee8b12fef 50 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
nyatla 0:142ee8b12fef 51 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
nyatla 0:142ee8b12fef 52 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
nyatla 0:142ee8b12fef 53 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
nyatla 0:142ee8b12fef 54 */
nyatla 0:142ee8b12fef 55 #include "NyLPC_stdlib.h"
nyatla 37:fc4b4fd6a649 56 #include "NyLPC_uip.h"
nyatla 0:142ee8b12fef 57 #include "NyLPC_cIPv4.h"
nyatla 0:142ee8b12fef 58 #include "NyLPC_cIPv4Payload_protected.h"
nyatla 0:142ee8b12fef 59 #include "NyLPC_cTcpSocket_protected.h"
nyatla 37:fc4b4fd6a649 60 #include "NyLPC_cUdpSocket_protected.h"
nyatla 0:142ee8b12fef 61 #include "NyLPC_cTcpListener_protected.h"
nyatla 0:142ee8b12fef 62 #include "NyLPC_cIPv4IComp_protected.h"
nyatla 0:142ee8b12fef 63 #include "NyLPC_cUipService_protected.h"
nyatla 0:142ee8b12fef 64
nyatla 0:142ee8b12fef 65
nyatla 0:142ee8b12fef 66
nyatla 0:142ee8b12fef 67 /****************************************************
nyatla 0:142ee8b12fef 68 * Socketテーブルに関する宣言
nyatla 0:142ee8b12fef 69 ***************************************************/
nyatla 0:142ee8b12fef 70
nyatla 37:fc4b4fd6a649 71 #define cSocketTbl_initialize(i_inst,buf) NyLPC_cPtrTbl_initialize(i_inst,buf,NyLPC_cIPv4_MAX_SOCKET)
nyatla 37:fc4b4fd6a649 72 #define cSocketTbl_finalize(i_inst)
nyatla 0:142ee8b12fef 73
nyatla 0:142ee8b12fef 74 /**
nyatla 37:fc4b4fd6a649 75 * 条件に一致する、アクティブなTCPソケットオブジェクトを取得します。
nyatla 0:142ee8b12fef 76 * この関数は、ローカルIPが一致していると仮定して検索をします。
nyatla 0:142ee8b12fef 77 * @param i_rip
nyatla 0:142ee8b12fef 78 * リモートIPアドレスを指定します。
nyatla 0:142ee8b12fef 79 */
nyatla 37:fc4b4fd6a649 80 static NyLPC_TcTcpSocket_t* cSocketTbl_getMatchTcpSocket(
nyatla 0:142ee8b12fef 81 NyLPC_TcPtrTbl_t* i_inst,
nyatla 0:142ee8b12fef 82 NyLPC_TUInt16 i_lport,
nyatla 0:142ee8b12fef 83 struct NyLPC_TIPv4Addr i_rip,
nyatla 0:142ee8b12fef 84 NyLPC_TUInt16 i_rport)
nyatla 0:142ee8b12fef 85 {
nyatla 37:fc4b4fd6a649 86 NyLPC_TcBaseSocket_t** p=(NyLPC_TcBaseSocket_t**)(i_inst->buf);
nyatla 37:fc4b4fd6a649 87 NyLPC_TcTcpSocket_t* tp;
nyatla 37:fc4b4fd6a649 88 int i;
nyatla 37:fc4b4fd6a649 89 //一致するポートを検索
nyatla 37:fc4b4fd6a649 90 for(i=i_inst->size-1;i>=0;i--){
nyatla 37:fc4b4fd6a649 91 if(p[i]==NULL || p[i]->_typeid!=NyLPC_TcBaseSocket_TYPEID_TCP_SOCK){
nyatla 37:fc4b4fd6a649 92 continue;
nyatla 37:fc4b4fd6a649 93 }
nyatla 37:fc4b4fd6a649 94 tp=(NyLPC_TcTcpSocket_t*)p[i];
nyatla 37:fc4b4fd6a649 95 if(tp->tcpstateflags==UIP_CLOSED){
nyatla 37:fc4b4fd6a649 96 continue;
nyatla 37:fc4b4fd6a649 97 }
nyatla 37:fc4b4fd6a649 98 //パラメータの一致チェック
nyatla 37:fc4b4fd6a649 99 if(i_lport!=tp->uip_connr.lport || i_rport!= tp->uip_connr.rport || i_rip.v!=tp->uip_connr.ripaddr.v)
nyatla 37:fc4b4fd6a649 100 {
nyatla 37:fc4b4fd6a649 101 continue;
nyatla 37:fc4b4fd6a649 102 }
nyatla 37:fc4b4fd6a649 103 return tp;
nyatla 37:fc4b4fd6a649 104 }
nyatla 37:fc4b4fd6a649 105 return NULL;
nyatla 37:fc4b4fd6a649 106 }
nyatla 37:fc4b4fd6a649 107 static NyLPC_TcUdpSocket_t* cSocketTbl_getMatchUdpSocket(
nyatla 37:fc4b4fd6a649 108 NyLPC_TcPtrTbl_t* i_inst,
nyatla 37:fc4b4fd6a649 109 NyLPC_TUInt16 i_lport)
nyatla 37:fc4b4fd6a649 110 {
nyatla 37:fc4b4fd6a649 111 NyLPC_TcBaseSocket_t** p=(NyLPC_TcBaseSocket_t**)(i_inst->buf);
nyatla 37:fc4b4fd6a649 112 NyLPC_TcUdpSocket_t* tp;
nyatla 37:fc4b4fd6a649 113 int i;
nyatla 37:fc4b4fd6a649 114 //一致するポートを検索
nyatla 37:fc4b4fd6a649 115 for(i=i_inst->size-1;i>=0;i--){
nyatla 37:fc4b4fd6a649 116 if(p[i]==NULL || p[i]->_typeid!=NyLPC_TcBaseSocket_TYPEID_UDP_SOCK){
nyatla 37:fc4b4fd6a649 117 continue;
nyatla 37:fc4b4fd6a649 118 }
nyatla 37:fc4b4fd6a649 119 tp=(NyLPC_TcUdpSocket_t*)p[i];
nyatla 37:fc4b4fd6a649 120 //パラメータの一致チェック
nyatla 48:00d211aac2ec 121 if(i_lport==tp->uip_udp_conn.lport){
nyatla 48:00d211aac2ec 122 //unicast
nyatla 48:00d211aac2ec 123 return tp;
nyatla 37:fc4b4fd6a649 124 }
nyatla 37:fc4b4fd6a649 125 }
nyatla 37:fc4b4fd6a649 126 return NULL;
nyatla 37:fc4b4fd6a649 127 }
nyatla 37:fc4b4fd6a649 128 static NyLPC_TcUdpSocket_t* cSocketTbl_getMatchMulticastUdpSocket(
nyatla 37:fc4b4fd6a649 129 NyLPC_TcPtrTbl_t* i_inst,
nyatla 37:fc4b4fd6a649 130 struct NyLPC_TIPv4Addr* i_mcast_ip,
nyatla 37:fc4b4fd6a649 131 NyLPC_TUInt16 i_lport)
nyatla 37:fc4b4fd6a649 132 {
nyatla 37:fc4b4fd6a649 133 NyLPC_TcBaseSocket_t** p=(NyLPC_TcBaseSocket_t**)(i_inst->buf);
nyatla 37:fc4b4fd6a649 134 NyLPC_TcUdpSocket_t* tp;
nyatla 37:fc4b4fd6a649 135 int i;
nyatla 37:fc4b4fd6a649 136 //一致するポートを検索
nyatla 37:fc4b4fd6a649 137 for(i=i_inst->size-1;i>=0;i--){
nyatla 37:fc4b4fd6a649 138 if(p[i]==NULL || p[i]->_typeid!=NyLPC_TcBaseSocket_TYPEID_UDP_SOCK){
nyatla 37:fc4b4fd6a649 139 continue;
nyatla 37:fc4b4fd6a649 140 }
nyatla 37:fc4b4fd6a649 141 tp=(NyLPC_TcUdpSocket_t*)p[i];
nyatla 37:fc4b4fd6a649 142 //パラメータの一致チェック
nyatla 48:00d211aac2ec 143 if(i_lport!=tp->uip_udp_conn.lport || (!NyLPC_TIPv4Addr_isEqual(i_mcast_ip,&(tp->uip_udp_conn.mcastaddr))))
nyatla 37:fc4b4fd6a649 144 {
nyatla 37:fc4b4fd6a649 145 continue;
nyatla 37:fc4b4fd6a649 146 }
nyatla 37:fc4b4fd6a649 147 return tp;
nyatla 37:fc4b4fd6a649 148 }
nyatla 37:fc4b4fd6a649 149 return NULL;
nyatla 37:fc4b4fd6a649 150 }
nyatla 37:fc4b4fd6a649 151
nyatla 37:fc4b4fd6a649 152 /**
nyatla 43:a182f2b5ff41 153 * i_port番号に一致するリスナを返します。
nyatla 37:fc4b4fd6a649 154 */
nyatla 43:a182f2b5ff41 155 static NyLPC_TcTcpListener_t* cSocketTbl_getListenerByPeerPort(NyLPC_TcPtrTbl_t* i_inst,NyLPC_TUInt16 i_port)
nyatla 37:fc4b4fd6a649 156 {
nyatla 37:fc4b4fd6a649 157 NyLPC_TcBaseSocket_t** p=(NyLPC_TcBaseSocket_t**)(i_inst->buf);
nyatla 37:fc4b4fd6a649 158 NyLPC_TcTcpListener_t* lp;
nyatla 0:142ee8b12fef 159 int i;
nyatla 0:142ee8b12fef 160 //一致するポートを検索して、acceptをコールする。
nyatla 0:142ee8b12fef 161 for(i=i_inst->size-1;i>=0;i--){
nyatla 37:fc4b4fd6a649 162 if(p[i]==NULL || p[i]->_typeid!=NyLPC_TcBaseSocket_TYPEID_TCP_LISTENER){
nyatla 0:142ee8b12fef 163 continue;
nyatla 0:142ee8b12fef 164 }
nyatla 37:fc4b4fd6a649 165 lp=(NyLPC_TcTcpListener_t*)p[i];
nyatla 43:a182f2b5ff41 166 if(lp->_port!=i_port){
nyatla 0:142ee8b12fef 167 continue;
nyatla 0:142ee8b12fef 168 }
nyatla 37:fc4b4fd6a649 169 return lp;
nyatla 0:142ee8b12fef 170 }
nyatla 0:142ee8b12fef 171 return NULL;
nyatla 0:142ee8b12fef 172 }
nyatla 37:fc4b4fd6a649 173
nyatla 0:142ee8b12fef 174 /**
nyatla 0:142ee8b12fef 175 * テーブルにある有効なソケットのperiodicをすべて呼び出します。
nyatla 0:142ee8b12fef 176 */
nyatla 0:142ee8b12fef 177 static void cSocketTbl_callPeriodic(
nyatla 0:142ee8b12fef 178 NyLPC_TcPtrTbl_t* i_inst)
nyatla 0:142ee8b12fef 179 {
nyatla 37:fc4b4fd6a649 180 NyLPC_TcBaseSocket_t** p=(NyLPC_TcBaseSocket_t**)(i_inst->buf);
nyatla 37:fc4b4fd6a649 181 int i;
nyatla 37:fc4b4fd6a649 182 for(i=i_inst->size-1;i>=0;i--){
nyatla 37:fc4b4fd6a649 183 if(p[i]==NULL){
nyatla 37:fc4b4fd6a649 184 continue;
nyatla 37:fc4b4fd6a649 185 }
nyatla 37:fc4b4fd6a649 186 switch(p[i]->_typeid){
nyatla 37:fc4b4fd6a649 187 case NyLPC_TcBaseSocket_TYPEID_TCP_SOCK:
nyatla 37:fc4b4fd6a649 188 //downcast!
nyatla 37:fc4b4fd6a649 189 NyLPC_cTcpSocket_periodic((NyLPC_TcTcpSocket_t*)(p[i]));
nyatla 37:fc4b4fd6a649 190 break;
nyatla 37:fc4b4fd6a649 191 case NyLPC_TcBaseSocket_TYPEID_UDP_SOCK:
nyatla 37:fc4b4fd6a649 192 NyLPC_cUdpSocket_periodic((NyLPC_TcUdpSocket_t*)(p[i]));
nyatla 37:fc4b4fd6a649 193 break;
nyatla 37:fc4b4fd6a649 194 default:
nyatla 37:fc4b4fd6a649 195 continue;
nyatla 37:fc4b4fd6a649 196 }
nyatla 37:fc4b4fd6a649 197 }
nyatla 37:fc4b4fd6a649 198 }
nyatla 37:fc4b4fd6a649 199
nyatla 37:fc4b4fd6a649 200 /**
nyatla 37:fc4b4fd6a649 201 * テーブルにある有効なソケットのstartを全て呼び出します。
nyatla 37:fc4b4fd6a649 202 */
nyatla 37:fc4b4fd6a649 203 static void cSocketTbl_callSocketStart(
nyatla 37:fc4b4fd6a649 204 NyLPC_TcPtrTbl_t* i_inst,
nyatla 37:fc4b4fd6a649 205 const NyLPC_TcIPv4Config_t* i_cfg)
nyatla 37:fc4b4fd6a649 206 {
nyatla 37:fc4b4fd6a649 207 NyLPC_TcBaseSocket_t** p=(NyLPC_TcBaseSocket_t**)(i_inst->buf);
nyatla 0:142ee8b12fef 208 int i;
nyatla 0:142ee8b12fef 209 for(i=i_inst->size-1;i>=0;i--){
nyatla 0:142ee8b12fef 210 if(p[i]==NULL){
nyatla 0:142ee8b12fef 211 continue;
nyatla 0:142ee8b12fef 212 }
nyatla 37:fc4b4fd6a649 213 switch(p[i]->_typeid){
nyatla 37:fc4b4fd6a649 214 case NyLPC_TcBaseSocket_TYPEID_UDP_SOCK:
nyatla 37:fc4b4fd6a649 215 NyLPC_cUdpSocket_startService((NyLPC_TcUdpSocket_t*)(p[i]),i_cfg);
nyatla 37:fc4b4fd6a649 216 break;
nyatla 37:fc4b4fd6a649 217 case NyLPC_TcBaseSocket_TYPEID_TCP_SOCK:
nyatla 37:fc4b4fd6a649 218 NyLPC_cTcpSocket_startService((NyLPC_TcTcpSocket_t*)(p[i]),i_cfg);
nyatla 37:fc4b4fd6a649 219 break;
nyatla 37:fc4b4fd6a649 220 default:
nyatla 37:fc4b4fd6a649 221 continue;
nyatla 37:fc4b4fd6a649 222 }
nyatla 0:142ee8b12fef 223 }
nyatla 0:142ee8b12fef 224 }
nyatla 37:fc4b4fd6a649 225 /**
nyatla 37:fc4b4fd6a649 226 * テーブルにある有効なソケットのstartを全て呼び出します。
nyatla 37:fc4b4fd6a649 227 */
nyatla 37:fc4b4fd6a649 228 static void cSocketTbl_callSocketStop(
nyatla 37:fc4b4fd6a649 229 NyLPC_TcPtrTbl_t* i_inst)
nyatla 37:fc4b4fd6a649 230 {
nyatla 37:fc4b4fd6a649 231 NyLPC_TcBaseSocket_t** p=(NyLPC_TcBaseSocket_t**)(i_inst->buf);
nyatla 37:fc4b4fd6a649 232 int i;
nyatla 37:fc4b4fd6a649 233 for(i=i_inst->size-1;i>=0;i--){
nyatla 37:fc4b4fd6a649 234 if(p[i]==NULL){
nyatla 37:fc4b4fd6a649 235 continue;
nyatla 37:fc4b4fd6a649 236 }
nyatla 37:fc4b4fd6a649 237 switch(p[i]->_typeid){
nyatla 37:fc4b4fd6a649 238 case NyLPC_TcBaseSocket_TYPEID_UDP_SOCK:
nyatla 37:fc4b4fd6a649 239 NyLPC_cUdpSocket_stopService((NyLPC_TcUdpSocket_t*)(p[i]));
nyatla 37:fc4b4fd6a649 240 break;
nyatla 37:fc4b4fd6a649 241 case NyLPC_TcBaseSocket_TYPEID_TCP_SOCK:
nyatla 37:fc4b4fd6a649 242 NyLPC_cTcpSocket_stopService((NyLPC_TcTcpSocket_t*)(p[i]));
nyatla 37:fc4b4fd6a649 243 break;
nyatla 37:fc4b4fd6a649 244 default:
nyatla 37:fc4b4fd6a649 245 continue;
nyatla 37:fc4b4fd6a649 246 }
nyatla 37:fc4b4fd6a649 247 }
nyatla 37:fc4b4fd6a649 248 }
nyatla 37:fc4b4fd6a649 249
nyatla 37:fc4b4fd6a649 250 /****************************************************
nyatla 37:fc4b4fd6a649 251 * NyLPC_cIPv4
nyatla 37:fc4b4fd6a649 252 ***************************************************/
nyatla 0:142ee8b12fef 253
nyatla 0:142ee8b12fef 254 /**
nyatla 0:142ee8b12fef 255 * Static関数
nyatla 0:142ee8b12fef 256 */
nyatla 0:142ee8b12fef 257
nyatla 0:142ee8b12fef 258 static NyLPC_TBool tcp_rx(
nyatla 0:142ee8b12fef 259 NyLPC_TcIPv4_t* i_inst,
nyatla 0:142ee8b12fef 260 NyLPC_TcIPv4Payload_t* i_ipp);
nyatla 37:fc4b4fd6a649 261 static NyLPC_TBool udp_rx(
nyatla 37:fc4b4fd6a649 262 NyLPC_TcIPv4_t* i_inst,
nyatla 37:fc4b4fd6a649 263 NyLPC_TcIPv4Payload_t* i_ipp);
nyatla 0:142ee8b12fef 264
nyatla 0:142ee8b12fef 265 /**
nyatla 0:142ee8b12fef 266 * See Header file.
nyatla 0:142ee8b12fef 267 */
nyatla 0:142ee8b12fef 268 void NyLPC_cIPv4_initialize(
nyatla 0:142ee8b12fef 269 NyLPC_TcIPv4_t* i_inst)
nyatla 0:142ee8b12fef 270 {
nyatla 0:142ee8b12fef 271 //内部テーブルの初期化
nyatla 0:142ee8b12fef 272 cSocketTbl_initialize(&(i_inst->_socket_tbl),(void**)(i_inst->_socket_array_buf));
nyatla 0:142ee8b12fef 273 //instanceの初期化
nyatla 37:fc4b4fd6a649 274 NyLPC_cMutex_initialize(&(i_inst->_sock_mutex));
nyatla 37:fc4b4fd6a649 275 NyLPC_cMutex_initialize(&(i_inst->_listener_mutex));
nyatla 0:142ee8b12fef 276 i_inst->_ref_config=NULL;
nyatla 0:142ee8b12fef 277 return;
nyatla 0:142ee8b12fef 278 }
nyatla 0:142ee8b12fef 279
nyatla 0:142ee8b12fef 280 /**
nyatla 0:142ee8b12fef 281 * See header file.
nyatla 0:142ee8b12fef 282 */
nyatla 0:142ee8b12fef 283 void NyLPC_cIPv4_finalize(
nyatla 0:142ee8b12fef 284 NyLPC_TcIPv4_t* i_inst)
nyatla 0:142ee8b12fef 285 {
nyatla 37:fc4b4fd6a649 286 cSocketTbl_finalize(&(i_inst->_socket_tbl));
nyatla 37:fc4b4fd6a649 287 NyLPC_cMutex_finalize(&(i_inst->_sock_mutex));
nyatla 37:fc4b4fd6a649 288 NyLPC_cMutex_finalize(&(i_inst->_listener_mutex));
nyatla 0:142ee8b12fef 289 return;
nyatla 0:142ee8b12fef 290 }
nyatla 0:142ee8b12fef 291
nyatla 0:142ee8b12fef 292 /**
nyatla 0:142ee8b12fef 293 * See header file.
nyatla 0:142ee8b12fef 294 */
nyatla 0:142ee8b12fef 295 void NyLPC_cIPv4_start(
nyatla 0:142ee8b12fef 296 NyLPC_TcIPv4_t* i_inst,
nyatla 0:142ee8b12fef 297 const NyLPC_TcIPv4Config_t* i_ref_configlation)
nyatla 0:142ee8b12fef 298 {
nyatla 0:142ee8b12fef 299 NyLPC_ArgAssert(i_ref_configlation!=NULL);
nyatla 0:142ee8b12fef 300 //リストの初期化、ここでするべき？しないべき？
nyatla 0:142ee8b12fef 301 i_inst->_ref_config=i_ref_configlation;
nyatla 37:fc4b4fd6a649 302 //configulationのアップデートを登録されてるソケットに通知
nyatla 37:fc4b4fd6a649 303 cSocketTbl_callSocketStart(&(i_inst->_socket_tbl),i_ref_configlation);
nyatla 0:142ee8b12fef 304 return;
nyatla 0:142ee8b12fef 305 }
nyatla 0:142ee8b12fef 306
nyatla 0:142ee8b12fef 307 /**
nyatla 0:142ee8b12fef 308 * See header file.
nyatla 0:142ee8b12fef 309 */
nyatla 0:142ee8b12fef 310 void NyLPC_cIPv4_stop(
nyatla 0:142ee8b12fef 311 NyLPC_TcIPv4_t* i_inst)
nyatla 0:142ee8b12fef 312 {
nyatla 37:fc4b4fd6a649 313 cSocketTbl_callSocketStop(&(i_inst->_socket_tbl));
nyatla 0:142ee8b12fef 314 i_inst->_ref_config=NULL;
nyatla 0:142ee8b12fef 315 return;
nyatla 0:142ee8b12fef 316 }
nyatla 0:142ee8b12fef 317
nyatla 0:142ee8b12fef 318 /**
nyatla 0:142ee8b12fef 319 * See header file.
nyatla 0:142ee8b12fef 320 */
nyatla 0:142ee8b12fef 321 NyLPC_TBool NyLPC_cIPv4_addSocket(
nyatla 0:142ee8b12fef 322 NyLPC_TcIPv4_t* i_inst,
nyatla 37:fc4b4fd6a649 323 NyLPC_TcBaseSocket_t* i_sock)
nyatla 0:142ee8b12fef 324 {
nyatla 0:142ee8b12fef 325 //当面、stop中しか成功しない。
nyatla 0:142ee8b12fef 326 NyLPC_Assert(!NyLPC_cUipService_isRun());
nyatla 0:142ee8b12fef 327 return NyLPC_cPtrTbl_add(&(i_inst->_socket_tbl),i_sock)>=0;
nyatla 0:142ee8b12fef 328 }
nyatla 0:142ee8b12fef 329
nyatla 0:142ee8b12fef 330 /**
nyatla 0:142ee8b12fef 331 * See header file.
nyatla 0:142ee8b12fef 332 */
nyatla 0:142ee8b12fef 333 NyLPC_TBool NyLPC_cIPv4_removeSocket(
nyatla 0:142ee8b12fef 334 NyLPC_TcIPv4_t* i_inst,
nyatla 37:fc4b4fd6a649 335 NyLPC_TcBaseSocket_t* i_sock)
nyatla 0:142ee8b12fef 336 {
nyatla 0:142ee8b12fef 337 NyLPC_TInt16 i;
nyatla 0:142ee8b12fef 338 NyLPC_Assert(!NyLPC_cUipService_isRun());
nyatla 0:142ee8b12fef 339 i=NyLPC_cPtrTbl_getIndex(&(i_inst->_socket_tbl),i_sock);
nyatla 0:142ee8b12fef 340 if(i>=0){
nyatla 0:142ee8b12fef 341 NyLPC_cPtrTbl_remove(&(i_inst->_socket_tbl),i);
nyatla 0:142ee8b12fef 342 return NyLPC_TBool_TRUE;
nyatla 0:142ee8b12fef 343 }
nyatla 0:142ee8b12fef 344 return NyLPC_TBool_FALSE;
nyatla 0:142ee8b12fef 345 }
nyatla 0:142ee8b12fef 346
nyatla 0:142ee8b12fef 347
nyatla 0:142ee8b12fef 348 #define IS_START(i_inst) ((i_inst)->_ref_config!=NULL)
nyatla 0:142ee8b12fef 349
nyatla 0:142ee8b12fef 350 /**
nyatla 0:142ee8b12fef 351 * 稼動時に、1s置きに呼び出す関数です。
nyatla 0:142ee8b12fef 352 */
nyatla 0:142ee8b12fef 353 void NyLPC_cIPv4_periodec(NyLPC_TcIPv4_t* i_inst)
nyatla 0:142ee8b12fef 354 {
nyatla 0:142ee8b12fef 355 cSocketTbl_callPeriodic(&(i_inst->_socket_tbl));
nyatla 0:142ee8b12fef 356 }
nyatla 0:142ee8b12fef 357
nyatla 0:142ee8b12fef 358
nyatla 0:142ee8b12fef 359 /**
nyatla 0:142ee8b12fef 360 * IPv4ペイロードを処理する関数。
nyatla 0:142ee8b12fef 361 * この関数は、パケット受信タスクから実行します。
nyatla 0:142ee8b12fef 362 * @param i_rx
nyatla 0:142ee8b12fef 363 * 先頭ポインタ。
nyatla 0:142ee8b12fef 364 * @return
nyatla 0:142ee8b12fef 365 * TRUEなら、i_rxに応答パケットをセットして返します。
nyatla 0:142ee8b12fef 366 */
nyatla 0:142ee8b12fef 367 NyLPC_TBool NyLPC_cIPv4_rx(NyLPC_TcIPv4_t* i_inst,void* i_rx,NyLPC_TUInt16 i_rx_size)
nyatla 0:142ee8b12fef 368 {
nyatla 0:142ee8b12fef 369 NyLPC_TcUipService_t* inst=_NyLPC_TcUipService_inst;
nyatla 0:142ee8b12fef 370 NyLPC_TcIPv4Payload_t ipv4;
nyatla 0:142ee8b12fef 371 //NOT開始状態なら受け付けないよ。
nyatla 0:142ee8b12fef 372 if(!IS_START(i_inst)){
nyatla 0:142ee8b12fef 373 NyLPC_OnErrorGoto(ERROR_DROP);
nyatla 0:142ee8b12fef 374 }
nyatla 0:142ee8b12fef 375
nyatla 0:142ee8b12fef 376 NyLPC_cIPv4Payload_initialize(&ipv4);
nyatla 0:142ee8b12fef 377 //IPフラグメントを読出し用にセットする。
nyatla 0:142ee8b12fef 378 if(!NyLPC_cIPv4Payload_setRxBuf(&ipv4,i_rx,i_rx_size))
nyatla 0:142ee8b12fef 379 {
nyatla 0:142ee8b12fef 380 NyLPC_OnErrorGoto(ERROR_DROP);
nyatla 0:142ee8b12fef 381 }
nyatla 0:142ee8b12fef 382 switch(ipv4.header->proto)
nyatla 0:142ee8b12fef 383 {
nyatla 0:142ee8b12fef 384 case UIP_PROTO_TCP:
nyatla 0:142ee8b12fef 385 //TCP受信処理
nyatla 0:142ee8b12fef 386 return tcp_rx(i_inst,&ipv4);
nyatla 0:142ee8b12fef 387 case UIP_PROTO_UDP:
nyatla 37:fc4b4fd6a649 388 //UDP処理
nyatla 37:fc4b4fd6a649 389 udp_rx(i_inst,&ipv4);//r
nyatla 37:fc4b4fd6a649 390 return NyLPC_TBool_FALSE;
nyatla 0:142ee8b12fef 391 case UIP_PROTO_ICMP:
nyatla 0:142ee8b12fef 392 if(!NyLPC_cIPv4IComp_rx(&(inst->_icomp),&ipv4)){
nyatla 0:142ee8b12fef 393 NyLPC_OnErrorGoto(ERROR_DROP);
nyatla 0:142ee8b12fef 394 }
nyatla 0:142ee8b12fef 395 return NyLPC_TBool_TRUE;
nyatla 0:142ee8b12fef 396 }
nyatla 0:142ee8b12fef 397 return NyLPC_TBool_FALSE;
nyatla 0:142ee8b12fef 398 ERROR_DROP:
nyatla 0:142ee8b12fef 399 return NyLPC_TBool_FALSE;
nyatla 0:142ee8b12fef 400 }
nyatla 0:142ee8b12fef 401
nyatla 0:142ee8b12fef 402
nyatla 0:142ee8b12fef 403 /**********************************************************************
nyatla 0:142ee8b12fef 404 *
nyatla 0:142ee8b12fef 405 * public function
nyatla 0:142ee8b12fef 406 *
nyatla 0:142ee8b12fef 407 **********************************************************************/
nyatla 0:142ee8b12fef 408
nyatla 0:142ee8b12fef 409
nyatla 0:142ee8b12fef 410 static NyLPC_TBool tcp_rx(
nyatla 0:142ee8b12fef 411 NyLPC_TcIPv4_t* i_inst,
nyatla 0:142ee8b12fef 412 NyLPC_TcIPv4Payload_t* i_ipp)
nyatla 0:142ee8b12fef 413 {
nyatla 0:142ee8b12fef 414 NyLPC_TcTcpSocket_t* sock;
nyatla 0:142ee8b12fef 415 NyLPC_TcTcpListener_t* listener;
nyatla 0:142ee8b12fef 416
nyatla 0:142ee8b12fef 417 //自分自身のIPに対する呼び出し？
nyatla 0:142ee8b12fef 418 if(!NyLPC_TIPv4Addr_isEqual(&(i_ipp->header->destipaddr),&(i_inst->_ref_config->ip_addr)))
nyatla 0:142ee8b12fef 419 {
nyatla 0:142ee8b12fef 420 //自分以外のパケットはドロップ
nyatla 0:142ee8b12fef 421 goto DROP;
nyatla 0:142ee8b12fef 422 }
nyatla 0:142ee8b12fef 423 //チェックサムの計算
nyatla 0:142ee8b12fef 424 if((NyLPC_TIPv4Header_makeTcpChecksum(i_ipp->header) != 0xffff))
nyatla 0:142ee8b12fef 425 {
nyatla 0:142ee8b12fef 426 //受信エラーのあるパケットはドロップ
nyatla 0:142ee8b12fef 427 goto DROP;
nyatla 0:142ee8b12fef 428 }
nyatla 37:fc4b4fd6a649 429 //アクティブなTCPソケットを探す。
nyatla 37:fc4b4fd6a649 430 sock=cSocketTbl_getMatchTcpSocket(&(i_inst->_socket_tbl),i_ipp->payload.tcp->destport,i_ipp->header->srcipaddr,i_ipp->payload.tcp->srcport);
nyatla 0:142ee8b12fef 431 if(sock!=NULL)
nyatla 0:142ee8b12fef 432 {
nyatla 0:142ee8b12fef 433 //既存の接続を処理
nyatla 0:142ee8b12fef 434 return NyLPC_cTcpSocket_parseRx(sock,i_ipp);
nyatla 0:142ee8b12fef 435
nyatla 0:142ee8b12fef 436 }else{
nyatla 0:142ee8b12fef 437 //未知の接続
nyatla 0:142ee8b12fef 438 if(!NyLPC_cPtrTbl_hasEmpty(&(i_inst->_socket_tbl))){
nyatla 0:142ee8b12fef 439 //ソケットテーブルが不十分。RST送信
nyatla 0:142ee8b12fef 440 NyLPC_cIPv4Payload_setTcpReverseRstAck(i_ipp);
nyatla 0:142ee8b12fef 441 return NyLPC_TBool_TRUE;
nyatla 0:142ee8b12fef 442 }
nyatla 0:142ee8b12fef 443 //このポートに対応したListenerを得る。
nyatla 37:fc4b4fd6a649 444 listener=cSocketTbl_getListenerByPeerPort(&(i_inst->_socket_tbl),i_ipp->payload.tcp->destport);
nyatla 0:142ee8b12fef 445 if(listener==NULL){
nyatla 0:142ee8b12fef 446 //Listen対象ではない。RST送信
nyatla 0:142ee8b12fef 447 NyLPC_cIPv4Payload_setTcpReverseRstAck(i_ipp);
nyatla 0:142ee8b12fef 448 return NyLPC_TBool_TRUE;
nyatla 0:142ee8b12fef 449 }
nyatla 0:142ee8b12fef 450 //リスナにソケットのバインドを依頼する。
nyatla 43:a182f2b5ff41 451 NyLPC_cTcpListener_synPacket(listener,i_ipp);
nyatla 0:142ee8b12fef 452 return NyLPC_TBool_FALSE;//LISTEN成功。送信データなし
nyatla 0:142ee8b12fef 453 }
nyatla 0:142ee8b12fef 454 return NyLPC_TBool_TRUE;
nyatla 0:142ee8b12fef 455 DROP:
nyatla 0:142ee8b12fef 456 return NyLPC_TBool_FALSE;
nyatla 0:142ee8b12fef 457 }
nyatla 0:142ee8b12fef 458
nyatla 0:142ee8b12fef 459
nyatla 0:142ee8b12fef 460
nyatla 37:fc4b4fd6a649 461 static NyLPC_TBool udp_rx(
nyatla 37:fc4b4fd6a649 462 NyLPC_TcIPv4_t* i_inst,
nyatla 37:fc4b4fd6a649 463 NyLPC_TcIPv4Payload_t* i_ipp)
nyatla 37:fc4b4fd6a649 464 {
nyatla 48:00d211aac2ec 465 NyLPC_TcUdpSocket_t* sock=NULL;
nyatla 48:00d211aac2ec 466 if(!NyLPC_TIPv4Addr_isEqual(&(i_ipp->header->destipaddr),&(i_inst->_ref_config->ip_addr)))
nyatla 48:00d211aac2ec 467 {
nyatla 48:00d211aac2ec 468 sock=cSocketTbl_getMatchUdpSocket(&(i_inst->_socket_tbl),i_ipp->payload.udp->destport);
nyatla 37:fc4b4fd6a649 469 }else{
nyatla 48:00d211aac2ec 470 if(NyLPC_TIPv4Addr_isEqualWithMask(&(i_ipp->header->destipaddr),&NyLPC_TIPv4Addr_MULTICAST,&NyLPC_TIPv4Addr_MULTICAST_MASK)){
nyatla 48:00d211aac2ec 471 //MultiCast?
nyatla 48:00d211aac2ec 472 //マルチキャストに参加している&&portの一致するソケットを検索
nyatla 48:00d211aac2ec 473 sock=cSocketTbl_getMatchMulticastUdpSocket(&(i_inst->_socket_tbl),&(i_ipp->header->destipaddr),i_ipp->payload.udp->destport);
nyatla 48:00d211aac2ec 474 }else if(!NyLPC_TIPv4Addr_isEqual(&(i_ipp->header->destipaddr),&NyLPC_TIPv4Addr_BROADCAST)){
nyatla 48:00d211aac2ec 475 //Broadcast?
nyatla 48:00d211aac2ec 476 sock=cSocketTbl_getMatchUdpSocket(&(i_inst->_socket_tbl),i_ipp->payload.udp->destport);
nyatla 37:fc4b4fd6a649 477 }
nyatla 48:00d211aac2ec 478 }
nyatla 48:00d211aac2ec 479 if(sock==NULL)
nyatla 48:00d211aac2ec 480 {
nyatla 48:00d211aac2ec 481 goto DROP;
nyatla 48:00d211aac2ec 482 }
nyatla 48:00d211aac2ec 483 //パケットのエラーチェック
nyatla 48:00d211aac2ec 484 if((NyLPC_TIPv4Header_makeTcpChecksum(i_ipp->header) != 0xffff))
nyatla 48:00d211aac2ec 485 {
nyatla 48:00d211aac2ec 486 //受信エラーのあるパケットはドロップ
nyatla 48:00d211aac2ec 487 goto DROP;
nyatla 37:fc4b4fd6a649 488 }
nyatla 37:fc4b4fd6a649 489 //既存の接続を処理
nyatla 37:fc4b4fd6a649 490 return NyLPC_cUdpSocket_parseRx(sock,i_ipp);
nyatla 37:fc4b4fd6a649 491 DROP:
nyatla 37:fc4b4fd6a649 492 return NyLPC_TBool_FALSE;
nyatla 37:fc4b4fd6a649 493 }
nyatla 0:142ee8b12fef 494
nyatla 0:142ee8b12fef 495