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package main
import (
"errors"
"net"
"sync"
)
type RoutingTable struct {
IPv4 *Trie
IPv6 *Trie
mutex sync.RWMutex
}
func (table *RoutingTable) AllowedIPs(peer *Peer) []net.IPNet {
table.mutex.RLock()
defer table.mutex.RUnlock()
allowed := make([]net.IPNet, 0, 10)
allowed = table.IPv4.AllowedIPs(peer, allowed)
allowed = table.IPv6.AllowedIPs(peer, allowed)
return allowed
}
func (table *RoutingTable) Reset() {
table.mutex.Lock()
defer table.mutex.Unlock()
table.IPv4 = nil
table.IPv6 = nil
}
func (table *RoutingTable) RemovePeer(peer *Peer) {
table.mutex.Lock()
defer table.mutex.Unlock()
table.IPv4 = table.IPv4.RemovePeer(peer)
table.IPv6 = table.IPv6.RemovePeer(peer)
}
func (table *RoutingTable) Insert(ip net.IP, cidr uint, peer *Peer) {
table.mutex.Lock()
defer table.mutex.Unlock()
switch len(ip) {
case net.IPv6len:
table.IPv6 = table.IPv6.Insert(ip, cidr, peer)
case net.IPv4len:
table.IPv4 = table.IPv4.Insert(ip, cidr, peer)
default:
panic(errors.New("Inserting unknown address type"))
}
}
func (table *RoutingTable) LookupIPv4(address []byte) *Peer {
table.mutex.RLock()
defer table.mutex.RUnlock()
return table.IPv4.Lookup(address)
}
func (table *RoutingTable) LookupIPv6(address []byte) *Peer {
table.mutex.RLock()
defer table.mutex.RUnlock()
return table.IPv6.Lookup(address)
}
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