first working netdeviceController

Socket/NetdeviceController.cc

-// $Id: BufferingPolicy.cc 533 2007-11-23 17:34:30Z g0dil $
+// $Id$
 //
 // Copyright (C) 2007
 // Fraunhofer Institut fuer offene Kommunikationssysteme (FOKUS)
@@ -21,7 +21,7 @@
 // 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 /** \file
-    \brief BufferingPolicy non-inline non-template implementation
+    \brief NetdeviceController non-inline non-template implementation
  */
 
 #include "NetdeviceController.hh"
@@ -31,37 +31,88 @@
 #include <sys/socket.h>
 #include <sys/ioctl.h>
 #include <net/if.h>
-#include <netinet/ether.h>
 #include "../Utils/Exception.hh"
 
 #define prefix_
 ///////////////////////////////cc.p////////////////////////////////////////
 
-prefix_ senf::NetdeviceController::NetdeviceController(std::string const interface_name)
+prefix_ senf::NetdeviceController::NetdeviceController(std::string const & interface_name)
 {
-    sockfd_ = ::socket(PF_PACKET, SOCK_DGRAM, 0);
-    if (sockfd_ < 0)
-        throwErrno();
-    interfacename_ = interface_name;
+    openSocket();
+    struct ifreq ifr;
+    ::memset( &ifr, 0, sizeof(ifr));
+    interface_name.copy( ifr.ifr_name, IFNAMSIZ);
+    doIoctl( ifr, SIOCGIFINDEX);
+    ifindex_ = ifr.ifr_ifindex;
+}
+
+prefix_ senf::NetdeviceController::NetdeviceController(int interface_index)
+{
+    openSocket();
+    ifindex_ = interface_index;
+}
+
+prefix_ std::string senf::NetdeviceController::interfaceName()
+{
+    struct ifreq ifr;
+    set_ifr_name( ifr);
+    return std::string( ifr.ifr_name);
 }
 
 prefix_ senf::MACAddress senf::NetdeviceController::hardwareAddress()
 {
     struct ifreq ifr;
-    ::memset( &ifr, 0, sizeof(ifr));
-    interfacename_.copy( ifr.ifr_name, IFNAMSIZ);
-    if ( ::ioctl( sockfd_, SIOCGIFHWADDR , &ifr ) < 0 )
-        throwErrno();
-    return senf::MACAddress::from_string( 
-            ether_ntoa( (struct ether_addr*) ifr.ifr_hwaddr.sa_data ) );
+    doIoctl( ifr, SIOCGIFHWADDR);
+    return senf::MACAddress::from_data( ifr.ifr_hwaddr.sa_data);
+}
+
+prefix_ int senf::NetdeviceController::mtu()
+{
+    struct ifreq ifr;
+    set_ifr_name(ifr);
+    doIoctl( ifr, SIOCGIFMTU);
+    return ifr.ifr_mtu;
+}
+
+prefix_ void senf::NetdeviceController::mtu(int new_mtu)
+{
+    struct ifreq ifr;
+    set_ifr_name( ifr);
+    ifr.ifr_mtu = new_mtu;
+    doIoctl( ifr, SIOCSIFMTU);
+}
+
+prefix_ int senf::NetdeviceController::interfaceIndex()
+{
+    return ifindex_;
 }
 
 prefix_ senf::NetdeviceController::~NetdeviceController()
 {
-    close( sockfd_ );
+    close( sockfd_);
 }
 
+prefix_ void senf::NetdeviceController::openSocket()
+{
+    sockfd_ = ::socket( PF_INET, SOCK_DGRAM, 0);
+    if ( sockfd_ < 0)
+        throwErrno();
+}
 
+prefix_ void senf::NetdeviceController::set_ifr_name(ifreq& ifr)
+{
+    ::memset( &ifr, 0, sizeof(ifr));
+    ifr.ifr_ifindex = ifindex_;
+    if ( ::ioctl( sockfd_, SIOCGIFNAME, &ifr ) < 0 )
+        throwErrno();
+}
+
+
+prefix_ void senf::NetdeviceController::doIoctl(ifreq& ifr, int request)
+{
+    if ( ::ioctl( sockfd_, request, &ifr ) < 0 )
+        throwErrno();
+}
 
 ///////////////////////////////cc.e////////////////////////////////////////
 #undef prefix_

Socket/NetdeviceController.hh

-// $Id: AddressingPolicy.hh 296 2007-07-10 20:39:34Z g0dil $
+// $Id$
 //
 // Copyright (C) 2007
 // Fraunhofer Institut fuer offene Kommunikationssysteme (FOKUS)
@@ -29,8 +29,10 @@
 
 // Custom includes
 #include <string>
+#include <net/if.h>
 #include "Protocols/Raw/MACAddress.hh"
 
+
 //#include "NetdeviceController.mpp"
 ///////////////////////////////hh.p////////////////////////////////////////
 
@@ -43,15 +45,22 @@ namespace senf {
     class NetdeviceController
     {
     public:
-        NetdeviceController(std::string const interface_name);
-        
+        NetdeviceController(std::string const & interface_name);
+        NetdeviceController(int interface_index);
         virtual ~NetdeviceController();
         
         MACAddress hardwareAddress();
+        std::string interfaceName();
+        int interfaceIndex();
+        int mtu();
+        void mtu(int new_mtu);
     
     private:
+        void openSocket();
+        void doIoctl(ifreq& ifr, int request);
+        void set_ifr_name(ifreq& ifr);
         int sockfd_;
-        std::string interfacename_;
+        int ifindex_;
     };
 
 }

Socket/NetdeviceController.test.cc

+// $Id$
+//
+// Copyright (C) 2007
+// Fraunhofer Institut fuer offene Kommunikationssysteme (FOKUS)
+// Kompetenzzentrum fuer Satelitenkommunikation (SatCom)
+//     Thorsten Horstmann <thorsten.horstmann@fokus.fraunhofer.de>
+//
+// 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.
+
+// Unit tests
+
+//#include "NetdeviceController.test.hh"
+//#include "NetdeviceController.test.ih"
+
+// Custom includes
+#include "NetdeviceController.hh"
+
+#include "../Utils/auto_unit_test.hh"
+#include <boost/test/test_tools.hpp>
+
+#define prefix_
+///////////////////////////////cc.p////////////////////////////////////////
+
+BOOST_AUTO_UNIT_TEST(NetdeviceController)
+{
+//    senf::NetdeviceController ctrl ("eth0");
+}
+
+///////////////////////////////cc.e////////////////////////////////////////
+#undef prefix_
+
+
+// Local Variables:
+// mode: c++
+// fill-column: 100
+// c-file-style: "senf"
+// indent-tabs-mode: nil
+// ispell-local-dictionary: "american"
+// compile-command: "scons -u test"
+// comment-column: 40
+// End: