open.c

/****************************************************************
 * (c) 2005 - 2007 Technische Universitaet Dresden              *
 * This file is part of DROPS, which is distributed under the   *
 * terms of the GNU General Public License 2. Please see the    *
 * COPYING file for details.                                    *
 ****************************************************************/

#include <stdlib.h>
#include <l4/log/l4log.h>
#include "local.h"

// perform open
l4ore_handle_t ore_do_open(int handle,
                                   const char *dev, 
                                                   unsigned char mac[6],
                           l4ore_config *conf)
{
        DICE_DECLARE_ENV(_dice_corba_env);
        l4ore_handle_t ret;
        l4ore_config _conf;

        _dice_corba_env.malloc = (dice_malloc_func)malloc;
        _dice_corba_env.free   = (dice_free_func)free;
        LOG_Enter();

        // evil user provides us with no space for the MAC...
        if (mac == NULL)
        {
                LOG("No memory allocated for MAC address return value.");
                return L4_INVALID_ID;
        }

        // gracefully handle NULL pointer for config
        if (conf == NULL)
        {
                LOG("No memory allocated for connection configuration.");
                _conf = L4ORE_DEFAULT_CONFIG;
        }
        else
                _conf = *conf;

        // open()
        ret = ore_manager_open_call(&descriptor_table[handle].remote_manager_thread,
                                                          dev, mac, &_conf, &_dice_corba_env);

        LOG("opened. worker = "l4util_idfmt, l4util_idstr(ret));

        if (conf)
          *conf = _conf;

        return ret;
}

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