server: support afi-safi re-configuration

Adding or deleting supported afi-safis will immediately reset BGP sesssion.
Changing only prefix-limit configuration won't reset it.

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

1 files changed, 16 insertions, 0 deletions

diff --git a/config/util.go b/config/util.go
index 15a68305..d1696eb0 100644
--- a/config/util.go
+++ b/config/util.go
@@ -66,3 +66,19 @@ func GetAfiSafi(p *Neighbor, family bgp.RouteFamily) *AfiSafi {
 	}
 	return nil
 }
+
+func CheckAfiSafisChange(x, y []AfiSafi) bool {
+	if len(x) != len(y) {
+		return true
+	}
+	m := make(map[string]bool)
+	for _, e := range x {
+		m[string(e.Config.AfiSafiName)] = true
+	}
+	for _, e := range y {
+		if !m[string(e.Config.AfiSafiName)] {
+			return true
+		}
+	}
+	return false
+}