-// $Id: PacketSocketHandle.cc 358 2007-07-27 12:14:51Z g0dil $
+// $Id$
//
// Copyright (C) 2006
-// Fraunhofer Institut fuer offene Kommunikationssysteme (FOKUS)
-// Kompetenzzentrum fuer Satelitenkommunikation (SatCom)
-// Stefan Bund <stefan.bund@fokus.fraunhofer.de>
+// Fraunhofer Institute for Open Communication Systems (FOKUS)
+// Competence Center NETwork research (NET), St. Augustin, GERMANY
+// Stefan Bund <g0dil@berlios.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
// 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
/** \file
- \brief
-
+ \brief
+
*/
#include "TunTapSocketHandle.hh"
#define prefix_
///////////////////////////////cc.p////////////////////////////////////////
-prefix_ void senf::TapProtocol::init_client()
+prefix_ std::string senf::TapSocketProtocol::init_client()
const
{
- init_client(std::string());
+ return init_client(std::string());
}
-prefix_ void senf::TapProtocol::init_client(std::string const & interface_name, bool const NO_PI)
+prefix_ std::string senf::TapSocketProtocol::init_client(std::string const & interface_name, bool const NO_PI)
const
{
- int fd;
- if ( (fd = ::open("/dev/net/tun", O_RDWR)) < 0 )
- throwErrno();
+ int f;
+ if ( (f = ::open("/dev/net/tun", O_RDWR)) < 0 )
+ SENF_THROW_SYSTEM_EXCEPTION("Could not open tap control device: /dev/net/tun.");
struct ifreq ifr;
::memset( &ifr, 0, sizeof(ifr));
ifr.ifr_flags = IFF_TAP;
if (NO_PI)
ifr.ifr_flags |= IFF_NO_PI;
interface_name.copy( ifr.ifr_name, IFNAMSIZ);
- if (::ioctl(fd, TUNSETIFF, (void *) &ifr) < 0 )
- throwErrno();
- body().fd(fd);
+ if (::ioctl(f, TUNSETIFF, (void *) &ifr) < 0 )
+ SENF_THROW_SYSTEM_EXCEPTION( "Could not create tap device: ") << ifr.ifr_name << ".";
+ ifaceIndex_ = if_nametoindex(ifr.ifr_name);
+ fd(f);
+ return ifaceName();
}
-prefix_ std::auto_ptr<senf::SocketProtocol> senf::TapProtocol::clone()
+prefix_ unsigned senf::TapSocketProtocol::available()
+ const
+{
+ if (!fh().readable())
+ return 0;
+ ssize_t l = ::recv(fd(), 0, 0, MSG_PEEK | MSG_TRUNC);
+ if (l < 0)
+ //SENF_THROW_SYSTEM_EXCEPTION("");
+ return 1588;
+ return l;
+}
+
+/*
+#include <linux/sockios.h> // for SIOCINQ / SIOCOUTQ
+
+prefix_ unsigned senf::TapSocketProtocol::available()
+ const
+{
+ if (! body().readable())
+ return 0;
+ int n;
+ if (::ioctl(body().fd(),SIOCINQ,&n) < 0)
+ SENF_THROW_SYSTEM_EXCEPTION("");
+ return n;
+}
+*/
+
+prefix_ bool senf::TapSocketProtocol::eof()
const
{
- return std::auto_ptr<SocketProtocol>(new TapProtocol());
+ return false;
}
-prefix_ unsigned senf::TapProtocol::available()
+prefix_ unsigned int senf::TapSocketProtocol::ifaceIndex()
const
{
- if (! body().readable())
- return 0;
- ssize_t l = ::recv(body().fd(),0,0,MSG_PEEK | MSG_TRUNC);
- if (l < 0)
- throwErrno();
- return l;
+ return ifaceIndex_;
}
-prefix_ bool senf::TapProtocol::eof()
+prefix_ std::string senf::TapSocketProtocol::ifaceName()
const
{
- return false;
+ char buf[IF_NAMESIZE];
+ if_indextoname(ifaceIndex_, buf);
+ return std::string(buf);
}
///////////////////////////////cc.e////////////////////////////////////////
#undef prefix_
//#include "TunTapSocketHandle.mpp"
-\f
+
// Local Variables:
// mode: c++
// fill-column: 100