server: support multiple route familes per peer

You can configure like the following:

[Global]
  As = 65032
  RouterId = "192.168.255.1"

[[NeighborList]]
  NeighborAddress = "10.0.255.1"
  PeerAs = 65001
  [NeighborList.RouteServer]
    RouteServerClient = true
  [[NeighborList.AfiSafiList]]
    AfiSafiName = "ipv4-unicast"
  [[NeighborList.AfiSafiList]]
    AfiSafiName = "ipv6-unicast"

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>

1 files changed, 4 insertions, 0 deletions

diff --git a/packet/bgp.go b/packet/bgp.go
index 3a27bce0..1b80e543 100644
--- a/packet/bgp.go
+++ b/packet/bgp.go
@@ -959,6 +959,10 @@ func AfiSafiToRouteFamily(afi uint16, safi uint8) RouteFamily {
 	return RouteFamily(int(afi)<<16 | int(safi))
 }
 
+func RouteFamilyToAfiSafi(rf RouteFamily) (uint16, uint8) {
+	return uint16(int(rf) >> 16), uint8(int(rf) & 0xff)
+}
+
 type RouteFamily int
 
 const (