server: handle peer not capable of four byte AS number

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

1 files changed, 5 insertions, 0 deletions

diff --git a/packet/bgp.go b/packet/bgp.go
index 60502e1a..527ebb7a 100644
--- a/packet/bgp.go
+++ b/packet/bgp.go
@@ -68,6 +68,7 @@ type ParameterCapabilityInterface interface {
 	DecodeFromBytes([]byte) error
 	Serialize() ([]byte, error)
 	Len() int
+	Code() BGPCapabilityCode
 }
 
 type DefaultParameterCapability struct {
@@ -76,6 +77,10 @@ type DefaultParameterCapability struct {
 	CapValue []byte
 }
 
+func (c *DefaultParameterCapability) Code() BGPCapabilityCode {
+	return c.CapCode
+}
+
 func (c *DefaultParameterCapability) DecodeFromBytes(data []byte) error {
 	c.CapCode = BGPCapabilityCode(data[0])
 	c.CapLen = data[1]