/*
 ******************************************************************************
 *                     INTERPEAK SOURCE FILE
 *
 *   Document no: @(#) $Name: VXWORKS_ITER40_2019102207 $ $RCSfile: ipmip6mn_bc.c,v $ $Revision: 1.5 $
 *   $Source: /home/interpeak/CVSRoot/ipmip6mn/src/ipmip6mn_bc.c,v $
 *   $Author: jhorteli $
 *   $State: Exp $ $Locker:  $
 *
 *   INTERPEAK_COPYRIGHT_STRING
 *     Design and implementation by Joel Hortelius <joel.hortelis@interpeak.se>
 ******************************************************************************
 */


/*
 ****************************************************************************
 * 1                    DESCRIPTION
 ****************************************************************************
 */

/*
 ****************************************************************************
 * 2                    CONFIGURATION
 ****************************************************************************
 */

#include "ipmip6mn_config.h"

/*
 ****************************************************************************
 * 3                    INCLUDE FILES
 ****************************************************************************
 */
#define IPCOM_USE_CLIB_PROTO
#include <ipcom_clib.h>
#include <ipcom_os.h>
#include <ipcom_sock.h>
#include <ipcom_sock6.h>
#include <ipcom_inet.h>
#include <ipcom_list.h>
#include <ipcom_hash.h>
#include <ipcom_syslog.h>

#include <ipmip.h>

#include <ipmip6.h>
#include <private/ipmip6_mh_pkt.h>
#include <private/ipmip6_util.h>

#include "ipmip6mn_h.h"
#include "ipmip6mn_bc.h"

/*
 ****************************************************************************
 * 4                    DEFINES
 ****************************************************************************
 */

/*
 ****************************************************************************
 * 5                    TYPES
 ****************************************************************************
 */

/*
 ****************************************************************************
 * 6                    EXTERN PROTOTYPES
 ****************************************************************************
 */

/*
 ****************************************************************************
 * 7                    LOCAL PROTOTYPES
 ****************************************************************************
 */

/*
 ****************************************************************************
 * 8                    DATA
 ****************************************************************************
 */

/*
 ****************************************************************************
 * 9                    STATIC FUNCTIONS
 ****************************************************************************
 */

/*
 *===========================================================================
 *                    ipmip6_bc_key_hash_compare
 *===========================================================================
 * Description:
 * Parameters:
 * Returns:
 */
IP_STATIC Ip_bool
ipmip6mn_bc_key_hash_compare(Ipmip6_bc_t          *bc,
                             Ipmip6mn_bc_key_t    *key)
{
    /* Base peer comparison */
    if (ipmip6_bc_key_hash_compare(bc, &key->key))
    {
        /* Verify that we've gotten the right kind of binding */
        if ((bc->flags & IPMIP6_MH_BU_H) != 0)
            return IP_TRUE;

#ifdef IPMIP6MN_CN
        /* Do the CN RO comparison */
        return ipmip6mn_mh_cn_key_compare(bc, key);
#endif
    }

    return IP_FALSE;
}


/*
 ****************************************************************************
 * 10                   GLOBAL FUNCTIONS
 ****************************************************************************
 */

/*
 *===========================================================================
 *                    ipmip6mn_lookup_binding
 *===========================================================================
 * Description: Lookup a particular correspondent binding in the binding cache
 *              belonging to a specific mobile node entry.
 * Parameters:  me      - Mobile node entry.
 *              key     - The lookup key
 *              func    - Extended matching callback function.
 *              data    - Data used in the extended matching.
 * Returns:     
 *
 */
IP_GLOBAL Ipmip6_bc_t   *
ipmip6mn_lookup_binding(Ipmip6mn_node_t            *node,
                        Ipmip6mn_bc_key_t          *key)
{
    Ipmip6_bc_t *bc;

    /* We've found the right node, look up the particular binding */
    if ((bc = ipcom_hash_get(node->ha.bc->bch_hash, key)) != IP_NULL)
        return bc;

    /* Try find it in the correspondent node cache. */
    if ((bc = ipcom_hash_get(node->cn.bc->bch_hash, key)) != IP_NULL)
        return bc;

    /* Try find it in the MAP node cache. */
    if ((bc = ipcom_hash_get(node->map.bc->bch_hash, key)) != IP_NULL)
        return bc;

    /* Return it */
    return IP_NULL;
}


/*
 *===========================================================================
 *                    ipmip6mn_lookup
 *===========================================================================
 * Description: Lookup a particular correspondent binding in the binding cache.
 * Parameters:  instance    - The instance
 *              home        - The home address specifying which mobile node
 *                            context to look in, or IP_NULL if unspecified.
 *              key         - The lookup key
 * Returns:     
 *
 */
IP_GLOBAL Ipmip6_bc_t   *
ipmip6mn_lookup(Ipmip6mn_context_t     *instance,
                struct Ip_in6_addr      *home,
                Ipmip6mn_bc_key_t       *key)
{    
    IPMIP_UNUSED_PARAMETER(instance);
    IPMIP_UNUSED_PARAMETER(home);
    IPMIP_UNUSED_PARAMETER(key);

    /* No match */
    return IP_NULL;
}


/*
 *===========================================================================
 *                    ipmi6mn_bc_create
 *===========================================================================
 * Description: Create a binding cache hash table.
 * Parameters:  notify      - The notification function
 *              opaque      - Opaque data.
 * Returns:     The binding cache hash table.
 *
 */
IP_GLOBAL Ipmip6_bc_hash_t *
ipmi6mn_bc_hash_create(Ipmip6_bc_hash_notify_t   notify,
                       void                      *opaque)
{
    /* Create the MN hash */
    return ipmip6_bc_hash_create(notify,
                                 opaque,
                                 (Ipcom_hash_cmp_func) ipmip6mn_bc_key_hash_compare);
}


/*
 ****************************************************************************
 * 11                   PUBLIC FUNCTIONS
 ****************************************************************************
 */

/*
 ****************************************************************************
 *                      END OF FILE
 ****************************************************************************
 */