static void __nat25_db_network_insert(_adapter *priv,
unsigned char *macAddr, unsigned char *networkAddr)
{
struct nat25_network_db_entry *db;
int hash;
_irqL irqL;
_enter_critical_bh(&priv->br_ext_lock, &irqL);
hash = __nat25_network_hash(networkAddr);
for (db = priv->nethash[hash]; db != NULL; db = db->next_hash) {
if(!memcmp(db->networkAddr, networkAddr, MAX_NETWORK_ADDR_LEN))
{
copy_mac_addr(db->macAddr, macAddr);
db->ageing_timer = jiffies;
_exit_critical_bh(&priv->br_ext_lock, &irqL);
return;
}
}
db = (struct nat25_network_db_entry *) rtw_malloc(sizeof(*db));
if(db == NULL) {
_exit_critical_bh(&priv->br_ext_lock, &irqL);
return;
}
memcpy(db->networkAddr, networkAddr, MAX_NETWORK_ADDR_LEN);
copy_mac_addr(db->macAddr, macAddr);
atomic_set(&db->use_count, 1);
db->ageing_timer = jiffies;
__network_hash_link(priv, db, hash);
_exit_critical_bh(&priv->br_ext_lock, &irqL);
}
static int __nat25_db_network_lookup_and_replace(_adapter *priv,
struct sk_buff *skb, unsigned char *networkAddr)
{
struct nat25_network_db_entry *db;
_irqL irqL;
_enter_critical_bh(&priv->br_ext_lock, &irqL);
db = priv->nethash[__nat25_network_hash(networkAddr)];
while (db != NULL)
{
if (!memcmp(db->networkAddr, networkAddr, MAX_NETWORK_ADDR_LEN))
{
if (!__nat25_has_expired(priv, db))
{
/* replace the destination mac address */
memcpy(skb->data, db->macAddr, ETH_ALEN);
atomic_inc(&db->use_count);
DEBUG_INFO("NAT25: Lookup M:%02x%02x%02x%02x%02x%02x N:%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x"
"%02x%02x%02x%02x%02x%02x\n",
db->macAddr[0],
db->macAddr[1],
db->macAddr[2],
db->macAddr[3],
db->macAddr[4],
db->macAddr[5],
db->networkAddr[0],
db->networkAddr[1],
db->networkAddr[2],
db->networkAddr[3],
db->networkAddr[4],
db->networkAddr[5],
db->networkAddr[6],
db->networkAddr[7],
db->networkAddr[8],
db->networkAddr[9],
db->networkAddr[10],
db->networkAddr[11],
db->networkAddr[12],
db->networkAddr[13],
db->networkAddr[14],
db->networkAddr[15],
db->networkAddr[16]);
}
_exit_critical_bh(&priv->br_ext_lock, &irqL);
return 1;
}
db = db->next_hash;
}
_exit_critical_bh(&priv->br_ext_lock, &irqL);
return 0;
}
