void br_fdb_insert(struct net_bridge *br,
struct net_bridge_port *source,
unsigned char *addr,
int is_local)
{
struct net_bridge_fdb_entry *fdb;
int hash;
hash = br_mac_hash(addr);
write_lock_bh(&br->hash_lock);
fdb = br->hash[hash];
while (fdb != NULL) {
if (!memcmp(fdb->addr.addr, addr, ETH_ALEN)) {
/* attempt to update an entry for a local interface */
if (fdb->is_local) {
if (is_local)
printk(KERN_INFO "%s: attempt to add"
" interface with same source address.\n",
source->dev->name);
else if (net_ratelimit())
printk(KERN_WARNING "%s: received packet with "
" own address as source address\n",
source->dev->name);
goto out;
}
__fdb_possibly_replace(fdb, source, is_local);
goto out;
}
fdb = fdb->next_hash;
}
fdb = kmalloc(sizeof(*fdb), GFP_ATOMIC);
if (fdb == NULL)
goto out;
memcpy(fdb->addr.addr, addr, ETH_ALEN);
atomic_set(&fdb->use_count, 1);
fdb->dst = source;
fdb->is_local = is_local;
fdb->is_static = is_local;
fdb->ageing_timer = jiffies;
__hash_link(br, fdb, hash);
out:
write_unlock_bh(&br->hash_lock);
}
void br_fdb_insert(struct net_bridge *br,
struct net_bridge_port *source,
unsigned char *addr,
int is_local)
{
struct net_bridge_fdb_entry *fdb;
int hash;
hash = br_mac_hash(addr);
write_lock_bh(&br->hash_lock);
fdb = br->hash[hash];
while (fdb != NULL) {
if (!fdb->is_local &&
!memcmp(fdb->addr.addr, addr, ETH_ALEN)) {
__fdb_possibly_replace(fdb, source, is_local);
write_unlock_bh(&br->hash_lock);
return;
}
fdb = fdb->next_hash;
}
fdb = kmalloc(sizeof(*fdb), GFP_ATOMIC);
if (fdb == NULL) {
write_unlock_bh(&br->hash_lock);
return;
}
memcpy(fdb->addr.addr, addr, ETH_ALEN);
atomic_set(&fdb->use_count, 1);
fdb->dst = source;
fdb->is_local = is_local;
fdb->is_static = is_local;
fdb->ageing_timer = jiffies;
__hash_link(br, fdb, hash);
write_unlock_bh(&br->hash_lock);
}
void br_fdb_changeaddr(struct net_bridge_port *p, unsigned char *newaddr)
{
struct net_bridge *br;
int i;
br = p->br;
write_lock_bh(&br->hash_lock);
for (i=0;i<BR_HASH_SIZE;i++) {
struct net_bridge_fdb_entry *f;
f = br->hash[i];
while (f != NULL) {
if (f->dst == p && f->is_local) {
__hash_unlink(f);
memcpy(f->addr.addr, newaddr, ETH_ALEN);
__hash_link(br, f, br_mac_hash(newaddr));
write_unlock_bh(&br->hash_lock);
return;
}
f = f->next_hash;
}
}
write_unlock_bh(&br->hash_lock);
}