add filters from config to addr filter in swarm

License: MIT
Signed-off-by: Jeromy <jeromyj@gmail.com>

net/swarm/swarm.go

@@ -20,6 +20,7 @@ import (
 	pst "github.com/ipfs/go-ipfs/Godeps/_workspace/src/github.com/jbenet/go-peerstream/transport"
 	psy "github.com/ipfs/go-ipfs/Godeps/_workspace/src/github.com/jbenet/go-peerstream/transport/yamux"
 	prom "github.com/ipfs/go-ipfs/Godeps/_workspace/src/github.com/prometheus/client_golang/prometheus"
+	mafilter "github.com/ipfs/go-ipfs/Godeps/_workspace/src/github.com/whyrusleeping/multiaddr-filter"
 	context "github.com/ipfs/go-ipfs/Godeps/_workspace/src/golang.org/x/net/context"
 )
 
@@ -101,6 +102,16 @@ func (s *Swarm) teardown() error {
 	return s.swarm.Close()
 }
 
+func (s *Swarm) AddAddrFilter(f string) error {
+	m, err := mafilter.NewMask(f)
+	if err != nil {
+		return err
+	}
+
+	s.Filters.AddDialFilter(m)
+	return nil
+}
+
 // CtxGroup returns the Context Group of the swarm
 func filterAddrs(listenAddrs []ma.Multiaddr) ([]ma.Multiaddr, error) {
 	if len(listenAddrs) > 0 {