Sha256: a357e7a5ea1af0c77a51c3c2435b512a2c042cf94a11b24d05da6fe599ea3505
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Size: 1.7 KB
Versions: 10
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Contents
/*
* Traffic counter.
*
* Author: Kazushi SUGYO
*
* Copyright (C) 2008-2012 NEC Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, version 2, as
* published by the Free Software Foundation.
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "trema.h"
#include "fdb.h"
hash_table *
create_fdb() {
return create_hash( compare_mac, hash_mac );
}
uint16_t
lookup_fdb( hash_table *db, uint8_t *mac ) {
fdb *fdb = lookup_hash_entry( db, mac );
return ( uint16_t ) ( fdb == NULL ? ENTRY_NOT_FOUND_IN_FDB : fdb->port_number );
}
void
learn_fdb( hash_table *db, uint8_t *mac, uint16_t port_number ) {
fdb *fdb = lookup_hash_entry( db, mac );
if ( fdb == NULL ) {
fdb = xmalloc( sizeof( fdb ) );
memcpy( fdb->mac, mac, ETH_ADDRLEN );
fdb->port_number = port_number;
insert_hash_entry( db, fdb->mac, fdb );
}
else {
fdb->port_number = port_number;
}
}
static void
free_each_value( void *key, void *value, void *user_data ) {
UNUSED( key );
UNUSED( user_data );
xfree( value );
}
void
delete_fdb( hash_table *db ) {
foreach_hash( db, free_each_value, NULL );
delete_hash( db );
}
/*
* Local variables:
* c-basic-offset: 2
* indent-tabs-mode: nil
* End:
*/
Version data entries
10 entries across 10 versions & 1 rubygems