Cedric Roux
a58a5bc8c7
Pre-ci tests passed git-svn-id: http://svn.eurecom.fr/openair4G/trunk@4389 818b1a75-f10b-46b9-bf7c-635c3b92a50f
390 lines
11 KiB
C
390 lines
11 KiB
C
/*******************************************************************************
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Eurecom OpenAirInterface 2
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Copyright(c) 1999 - 2010 Eurecom
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This program is free software; you can redistribute it and/or modify it
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under the terms and conditions of the GNU General Public License,
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version 2, as published by the Free Software Foundation.
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This program is distributed in the hope it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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The full GNU General Public License is included in this distribution in
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the file called "COPYING".
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Contact Information
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Openair Admin: openair_admin@eurecom.fr
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Openair Tech : openair_tech@eurecom.fr
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Forums : http://forums.eurecom.fsr/openairinterface
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Address : Eurecom, 2229, route des cr��tes, 06560 Valbonne Sophia Antipolis, France
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*******************************************************************************/
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/*! \file nas_config.c
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* \brief Configures the nasmesh interface
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* \author Daniel Camara
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* \date 2006-2011
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* \version 0.1
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* \company Eurecom
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <string.h>
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#include <unistd.h>
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#include <ctype.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <net/if.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <net/route.h>
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#include "nas_config.h"
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#include "UTIL/LOG/log.h"
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//default values according to the examples,
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char *baseNetAddress = "10.0" ;
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char *netMask = "255.255.255.0" ;
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char *broadcastAddr = "10.0.255.255" ;
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void setBaseNetAddress (char* baseAddr){
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strcpy(baseNetAddress,baseAddr);
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}
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char* getBaseNetAddress (){
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return baseNetAddress;
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}
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void setNetMask (char* baseAddr){
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strcpy(netMask,baseAddr);
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}
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char* getNetMask (){
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return netMask;
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}
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void setBroadcastAddress (char* baseAddr){
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strcpy(baseAddr, baseAddr);
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}
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char* getBroadcastAddress (){
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return broadcastAddr;
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}
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//Add Gateway to the interface
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int set_gateway(char *interfaceName, char *gateway)
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{
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int sock_fd;
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struct rtentry rt;
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struct sockaddr_in addr;
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if((sock_fd = socket(AF_INET,SOCK_DGRAM,0)) < 0)
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{
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perror("socket failed");
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return 1;
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}
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memset (&rt, 0, sizeof (rt));
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addr.sin_family = AF_INET;
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/*set Destination addr*/
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inet_aton("0.0.0.0",&addr.sin_addr);
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memcpy(&rt.rt_dst, &addr, sizeof(struct sockaddr_in));
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/*set gateway addr*/
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inet_aton(gateway,&addr.sin_addr);
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memcpy(&rt.rt_gateway, &addr, sizeof(struct sockaddr_in));
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/*set genmask addr*/
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inet_aton("0.0.0.0",&addr.sin_addr);
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memcpy(&rt.rt_genmask, &addr, sizeof(struct sockaddr_in));
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rt.rt_dev = interfaceName;
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//rt.rt_flags = RTF_UP|RTF_GATEWAY|RTF_DEFAULT;
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/* SR: rt_flags on 16 bits but RTF_DEFAULT = 0x00010000
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* therefore doesn't lie in container -> disable it
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*/
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//rt.rt_flags = RTF_GATEWAY|RTF_DEFAULT;
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rt.rt_flags = RTF_GATEWAY;
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if (ioctl(sock_fd, SIOCADDRT, &rt) < 0)
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{
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close(sock_fd);
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if(strstr(strerror(errno),"File exists") == NULL)
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{
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LOG_E(OIP,"ioctl SIOCADDRT failed : %s\n",strerror(errno));
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return 2;
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}
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else /*if SIOCADDRT error is route exist, retrun success*/
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{
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LOG_I(OIP,"File Exist ...\n");
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LOG_I(OIP,"set_gateway OK!\n");
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return 0;
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}
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}
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close(sock_fd);
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LOG_D(OIP,"Set Gateway OK!\n");
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return 0;
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}
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// sets a genneric interface parameter
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// (SIOCSIFADDR, SIOCSIFNETMASK, SIOCSIFBRDADDR, SIOCSIFFLAGS)
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int setInterfaceParameter(char *interfaceName, char *settingAddress, int operation)
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{
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int sock_fd;
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struct ifreq ifr;
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struct sockaddr_in addr;
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if((sock_fd = socket(AF_INET,SOCK_DGRAM,0)) < 0) {
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LOG_E(OIP,"Setting operation %d, for %s, address, %s : socket failed\n",
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operation, interfaceName, settingAddress);
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return 1;
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}
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memset(&ifr, 0, sizeof(ifr));
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strncpy(ifr.ifr_name, interfaceName, sizeof(ifr.ifr_name)-1);
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memset(&addr, 0, sizeof(struct sockaddr_in));
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addr.sin_family = AF_INET;
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inet_aton(settingAddress,&addr.sin_addr);
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memcpy(&ifr.ifr_ifru.ifru_addr,&addr,sizeof(struct sockaddr_in));
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if(ioctl(sock_fd,operation,&ifr) < 0) {
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close(sock_fd);
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LOG_E(OIP,"Setting operation %d, for %s, address, %s : ioctl call failed\n",
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operation, interfaceName, settingAddress);
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return 2;
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}
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close(sock_fd);
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// printf("Set OK!\n");
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return 0;
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}
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// sets a genneric interface parameter
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// (SIOCSIFADDR, SIOCSIFNETMASK, SIOCSIFBRDADDR, SIOCSIFFLAGS)
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int bringInterfaceUp(char *interfaceName, int up)
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{
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int sock_fd;
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struct ifreq ifr;
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if((sock_fd = socket(AF_INET,SOCK_DGRAM,0)) < 0)
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{
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LOG_E(OIP,"Bringing interface UP, for %s, failed creating socket\n", interfaceName);
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return 1;
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}
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memset(&ifr, 0, sizeof(ifr));
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strncpy(ifr.ifr_name, interfaceName, sizeof(ifr.ifr_name)-1);
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if(up)
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{
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ifr.ifr_flags |= IFF_UP | IFF_NOARP | IFF_MULTICAST;
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if (ioctl(sock_fd, SIOCSIFFLAGS, (caddr_t)&ifr) == -1)
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{
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close(sock_fd);
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LOG_E(OIP,"Bringing interface UP, for %s, failed UP ioctl\n", interfaceName);
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return 2;
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}
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}
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else
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{
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// printf("desactivation de %s\n", interfaceName);
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ifr.ifr_flags &= (~IFF_UP);
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if (ioctl(sock_fd, SIOCSIFFLAGS, (caddr_t)&ifr) == -1)
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{
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close(sock_fd);
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LOG_E(OIP,"Bringing interface down, for %s, failed UP ioctl\n", interfaceName);
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return 2;
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}
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}
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// printf("UP/DOWN OK!\n");
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return 0;
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}
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// non blocking full configuration of the interface (address, net mask, and broadcast mask)
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int NAS_config(char *interfaceName, char *ipAddress, char *networkMask, char *broadcastAddress)
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{
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bringInterfaceUp(interfaceName, 0);
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// sets the machine address
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int returnValue= setInterfaceParameter(interfaceName, ipAddress,SIOCSIFADDR);
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// sets the machine network mask
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if(!returnValue)
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returnValue= setInterfaceParameter(interfaceName, networkMask,SIOCSIFNETMASK);
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// sets the machine broadcast address
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if(!returnValue)
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returnValue= setInterfaceParameter(interfaceName, broadcastAddress,SIOCSIFBRDADDR);
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// if(!returnValue)
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// returnValue=set_gateway(interfaceName, broadcastAddress);
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bringInterfaceUp(interfaceName, 1);
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return returnValue;
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}
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// non blocking full configuration of the interface (address, and the two lest octets of the address)
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int nas_config(int interface_id, int thirdOctet, int fourthOctet){
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//char buf[5];
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char ipAddress[20];
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char broadcastAddress[20];
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char interfaceName[8];
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int returnValue;
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sprintf(ipAddress, "10.0.%d.%d", thirdOctet,fourthOctet);
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sprintf(broadcastAddress, "10.0.%d.255", thirdOctet);
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sprintf(interfaceName, "oai%d", interface_id);
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bringInterfaceUp(interfaceName, 0);
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// sets the machine address
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returnValue= setInterfaceParameter(interfaceName, ipAddress,SIOCSIFADDR);
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// sets the machine network mask
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if(!returnValue)
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returnValue= setInterfaceParameter(interfaceName, netMask,SIOCSIFNETMASK);
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// sets the machine broadcast address
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if(!returnValue)
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returnValue= setInterfaceParameter(interfaceName, broadcastAddress,SIOCSIFBRDADDR);
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bringInterfaceUp(interfaceName, 1);
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return returnValue;
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}
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// Blocking full configuration of the interface (address, net mask, and broadcast mask)
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int blocking_NAS_config(char *interfaceName, char *ipAddress, char *networkMask, char *broadcastAddress)
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{
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char command[200];
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command[0]='\0';
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strcat(command, "ifconfig ");
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strcat(command, interfaceName);
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strcat(command, " ");
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strcat(command, ipAddress);
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strcat(command, " networkMask ");
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strcat(command, networkMask);
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strcat(command, " broadcast ");
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strcat(command, broadcastAddress);
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// ifconfig nasmesh0 10.0.1.1 networkMask 255.255.255.0 broadcast 10.0.1.255
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int i = system (command);
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return i;
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}
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// program help
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void helpOptions(char **argv)
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{
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printf("Help for %s\n", argv[0]);
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printf(" -i <interfaceName>\n");
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printf(" -a <IP address>\n");
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printf(" -n <Net mask>\n");
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printf(" -b <broadcast address>\n");
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printf(" -h Shows this help\n");
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printf("If no option is passed as parameter the default values are: \n");
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printf(" Interface Name: nasmesh0\n");
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printf(" IP Address: 10.0.1.1\n");
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printf(" Net mask: 255.255.255.0\n");
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printf(" Broadcast address: [Beginning of the IP address].255\n");
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exit(1);
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}
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// creates the broadcast address if it wasn't set before
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void createBroadcast(char *broadcastAddress)
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{
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int pos=strlen(broadcastAddress)-1;
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while(broadcastAddress[pos]!='.')
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pos--;
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broadcastAddress[++pos]='2';
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broadcastAddress[++pos]='2';
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broadcastAddress[++pos]='5';
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broadcastAddress[++pos]='\0';
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}
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#ifdef STANDALONE
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// main function
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//---------------------------------------------------------------------------
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int main(int argc,char **argv)
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//---------------------------------------------------------------------------
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{
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int c;
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char interfaceName[100];
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char ipAddress[100];
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char networkMask[100];
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char broadcastAddress[100];
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strcpy(interfaceName, "oai0");
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strcpy(ipAddress, "10.0.1.1");
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strcpy(networkMask, "255.255.255.0");
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broadcastAddress[0]='\0';
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while ((c = getopt (argc, argv, "i:a:n:b:h")) != -1)
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switch (c)
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{
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case 'h':
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helpOptions(argv);
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break;
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case 'i':
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strcpy(interfaceName,optarg);
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break;
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case 'a':
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strcpy(ipAddress,optarg);
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break;
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case 'n':
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strcpy(networkMask,optarg);
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break;
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case 'b':
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strcpy(broadcastAddress,optarg);
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break;
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case '?':
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if (isprint (optopt))
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fprintf (stderr, "Unknown option `-%c'.\n", optopt);
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else
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fprintf (stderr,
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"Unknown option character `\\x%x'.\n",
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optopt);
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return 1;
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default:
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abort ();
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}
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if(strlen(broadcastAddress)==0)
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{
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strcpy(broadcastAddress,ipAddress);
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createBroadcast(broadcastAddress);
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}
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printf("Command: ifconfig %s %s networkMask %s broadcast %s\n", interfaceName, ipAddress, networkMask, broadcastAddress);
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NAS_config(interfaceName, ipAddress, networkMask, broadcastAddress);
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//test
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// setBaseNetAddress("11.11");
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// nas_config(interfaceName, 33, 44);
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}
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#endif
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