--- /dev/null
+/**************************************************
+opengate Mac addr auth program
+
+ module to control udp client
+
+ As ip address check by database is time consuming procedure,
+ the recently checked addresses are cached and skiped.
+ Implemented with HashTable and Queue.
+ HashTable has recentry checked dataStress and checked time.
+ If ip is included in table and time is new, ignore checking.
+ Queue has dataStresses odrered by checked time.
+ If an old item is found in table, elder items are removed from table.
+ The queue controls the remove sequence.
+
+
+Copyright (C) 2011 Opengate Project Team
+Written by Yoshiaki Watanabe
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+Email: watanaby@is.saga-u.ac.jp
+**************************************************/
+
+#include "opengatesrv.h"
+
+/************************************
+send mac address to daemon at db update
+************************************/
+int putMacAddressToOpengateMd(char* macAddress){
+ char* udpPort;
+
+ udpPort=GetConfValue("OpengateMdPort");
+ if(!isNull(udpPort)){
+ PutDataToUdpPort("127.0.0.1", udpPort, macAddress);
+ }
+
+ return TRUE;
+}
+
+/*****************************************
+put data to server udp port
+*****************************************/
+int putDataToUdpPort(char* udpServerAddr, char* udpServerPort, char* buff){
+
+ int sockfd;
+ struct addrinfo hints, *servinfo, *p;
+ int ret;
+ int numbytes;
+
+ /* if no buffer return error */
+ if (buff==NULL||*buff=='\0') return FALSE;
+
+ /* prepare address hints */
+ memset(&hints, 0, sizeof hints);
+ hints.ai_family = AF_UNSPEC; /* IPv4/IPv6 dual */
+ hints.ai_socktype = SOCK_DGRAM; /* UDP */
+
+ if ((ret = getaddrinfo(udpServerAddr, udpServerPort, &hints, &servinfo))!= 0) {
+ err_msg("ERR at %s#%d: getaddrinfo: %s",__FILE__,__LINE__,
+ gai_strerror(ret));
+ return FALSE;
+ }
+
+ /* loop through addresses */
+ for(p = servinfo; p != NULL; p = p->ai_next) {
+ if ((sockfd = socket(p->ai_family, p->ai_socktype,
+ p->ai_protocol)) == -1) {
+ err_msg("ERR at %s#%d: socket error: %s",__FILE__,__LINE__,
+ strerror(errno));
+ continue;
+ }
+ break;
+ }
+ if (p == NULL) {
+ err_msg("ERR at %s#%d: failed to bind socket",__FILE__,__LINE__);
+ return FALSE;
+ }
+
+ /* send data to server */
+ if ((numbytes = sendto(sockfd, buff, strlen(buff), 0,
+ p->ai_addr, p->ai_addrlen)) == -1) {
+ err_msg("ERR at %s#%d: sendto error: %s",__FILE__,__LINE__,
+ strerror(errno));
+ err_msg("ERR at %s#%d: Check firewall/daemon on [%s] to get udp[%d] packet"
+ "from here",
+ __FILE__,__LINE__,udpServerAddr,udpServerPort);
+ return FALSE;
+ }
+
+ /* finalize */
+ freeaddrinfo(servinfo);
+ close(sockfd);
+
+ return TRUE;
+}
+
+/**********************************
+put out buff to udp addr:port
+**********************************/
+int PutDataToUdpPort(char* udpServerAddr, char* udpServerPort,char* buff){
+ int ret;
+ if(debug>1) err_msg("DEBUG:=>putDataToUdpPort(%s)",udpServerAddr, udpServerPort,buff);
+ ret = putDataToUdpPort(udpServerAddr, udpServerPort,buff);
+ if(debug>1) err_msg("DEBUG:(%d)<=putDateToUdpPort( )",ret);
+ return ret;
+}
+
+
+int PutMacAddressToOpengateMd(char* macAddress){
+ int ret;
+ if(debug>1) err_msg("DEBUG:=>putMacAddressToOpengateMd(%s)",macAddress);
+ ret = putMacAddressToOpengateMd(macAddress);
+ if(debug>1) err_msg("DEBUG:(%d)<=putMacAddressToOpengateMd( )",ret);
+ return ret;
+}