func NewDomainRegionTree() *RegionTree {
// tbitRadix := bitradix.New32()
return &RegionTree{
Radix32: bitradix.New32(),
RWMutex: &sync.RWMutex{},
}
}
func processLine(line string) {
f := strings.SplitN(line, " ", 4)
if len(f) < 3 {
log.Printf("Did not split line into enough parts\nLINE: [%s]\nF: %#v\n", line, f)
return
}
neighbor_ip := f[1]
command := f[2]
neighbors_lock.RLock()
defer neighbors_lock.RUnlock()
if neighbors[neighbor_ip] == nil {
neighbors_lock.RUnlock()
neighbors_lock.Lock()
neighbor := new(Neighbor)
neighbor.trie = bitradix.New32()
neighbors[neighbor_ip] = neighbor
neighbors_lock.Unlock()
neighbors_lock.RLock()
defer neighbors_lock.RUnlock() // double?
}
neighbor := neighbors[neighbor_ip]
neighbor.lock.Lock()
defer neighbor.lock.Unlock()
switch command {
case "up", "connected", "down":
neighbor.State = command
log.Println("State change", line)
return
case "update":
neighbor.State = "update " + f[3]
return
case "announced":
// fmt.Printf("R: %#v\n", r)
neighbor.Updates++
route := parseRoute(f[3])
if ones, _ := route.Prefix.Mask.Size(); ones < 8 || ones > 25 {
// fmt.Println("prefix mask too big or small", route.Prefix)
} else {
if neighbor.AsnPrefix == nil {
neighbor.AsnPrefix = make(map[ASN]Prefixes)
}
if neighbor.PrefixAsn == nil {
neighbor.PrefixAsn = make(Prefixes)
}
if neighbor.AsnPrefix[route.PrimaryASN] == nil {
neighbor.AsnPrefix[route.PrimaryASN] = make(Prefixes)
}
neighbor.AsnPrefix[route.PrimaryASN][route.Prefix.String()] = 0
neighbor.PrefixAsn[route.Prefix.String()] = route.PrimaryASN
addRoute(neighbor.trie, route.Prefix, route)
}
case "withdrawn":
neighbor.Updates++
route := parseRoute(f[3])
removeRoute(neighbor.trie, route.Prefix)
if asn, exists := neighbor.PrefixAsn[route.Prefix.String()]; exists {
// fmt.Println("Removing ASN from prefix", asn, route.Prefix)
delete(neighbor.PrefixAsn, route.Prefix.String())
delete(neighbor.AsnPrefix[asn], route.Prefix.String())
} else {
log.Println("Could not find prefix in PrefixAsn")
log.Println("%#v", neighbor.PrefixAsn)
}
default:
err_text := fmt.Sprintf("Command not implemented: %s\n%s\n", command, line)
log.Println(err_text)
err := fmt.Errorf(err_text)
panic(err)
}
if neighbor.Updates%25000 == 0 {
log.Printf("Processed %v updates from %s\n", neighbor.Updates, neighbor_ip)
}
}
