mrt: support mrt rib dump of neighbor's local rib

This feature can be used in route-server env.
CLI syntax changed like below

$ gobgp mrt dump rib global [<interval>]

$ gobgp mrt dump rib neighbor <neighbor addr> [<interval>]

Signed-off-by: ISHIDA Wataru <ishida.wataru@lab.ntt.co.jp>

1 files changed, 20 insertions, 0 deletions

diff --git a/api/util.go b/api/util.go
index 677d4f6a..d1bd4649 100644
--- a/api/util.go
+++ b/api/util.go
@@ -26,3 +26,23 @@ var AF_RTC *AddressFamily = &AddressFamily{AFI_IP, SAFI_ROUTE_TARGET_CONSTRAINTS
 func (lhs *AddressFamily) Equal(rhs *AddressFamily) bool {
 	return lhs.Afi == rhs.Afi && lhs.Safi == rhs.Safi
 }
+
+func (af *AddressFamily) ShortString() string {
+	switch {
+	case af.Equal(AF_IPV4_UC):
+		return "ipv4"
+	case af.Equal(AF_IPV6_UC):
+		return "ipv6"
+	case af.Equal(AF_IPV4_VPN):
+		return "vpnv4"
+	case af.Equal(AF_IPV4_VPN):
+		return "vpnv6"
+	case af.Equal(AF_EVPN):
+		return "evpn"
+	case af.Equal(AF_ENCAP):
+		return "encap"
+	case af.Equal(AF_RTC):
+		return "rtc"
+	}
+	return "unknown"
+}