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-rw-r--r--packet/bgp.go20
-rw-r--r--packet/bgp_test.go39
2 files changed, 57 insertions, 2 deletions
diff --git a/packet/bgp.go b/packet/bgp.go
index 533b0288..6f541037 100644
--- a/packet/bgp.go
+++ b/packet/bgp.go
@@ -1997,7 +1997,15 @@ func (a *AsPathParam) Len() int {
}
func (a *AsPathParam) ASLen() int {
- return len(a.AS)
+ switch a.Type {
+ case BGP_ASPATH_ATTR_TYPE_SEQ:
+ return len(a.AS)
+ case BGP_ASPATH_ATTR_TYPE_SET:
+ return 1
+ case BGP_ASPATH_ATTR_TYPE_CONFED_SET,BGP_ASPATH_ATTR_TYPE_CONFED_SEQ:
+ return 0
+ }
+ return 0
}
func NewAsPathParam(segType uint8, as []uint16) *AsPathParam {
@@ -2048,7 +2056,15 @@ func (a *As4PathParam) Len() int {
}
func (a *As4PathParam) ASLen() int {
- return len(a.AS)
+ switch a.Type {
+ case BGP_ASPATH_ATTR_TYPE_SEQ:
+ return len(a.AS)
+ case BGP_ASPATH_ATTR_TYPE_SET:
+ return 1
+ case BGP_ASPATH_ATTR_TYPE_CONFED_SET,BGP_ASPATH_ATTR_TYPE_CONFED_SEQ:
+ return 0
+ }
+ return 0
}
func NewAs4PathParam(segType uint8, as []uint32) *As4PathParam {
diff --git a/packet/bgp_test.go b/packet/bgp_test.go
index 3b5d7b4c..8afa7363 100644
--- a/packet/bgp_test.go
+++ b/packet/bgp_test.go
@@ -323,3 +323,42 @@ func Test_RFC5512(t *testing.T) {
assert.Equal(nil, err)
assert.Equal("2001::1", n2.String())
}
+
+func Test_ASLen(t *testing.T) {
+ assert := assert.New(t)
+
+ aspath := AsPathParam{
+ Num: 2,
+ AS: []uint16{65000, 65001},
+ }
+ aspath.Type = BGP_ASPATH_ATTR_TYPE_SEQ
+ assert.Equal(2, aspath.ASLen())
+
+ aspath.Type = BGP_ASPATH_ATTR_TYPE_SET
+ assert.Equal(1, aspath.ASLen())
+
+ aspath.Type = BGP_ASPATH_ATTR_TYPE_CONFED_SEQ
+ assert.Equal(0, aspath.ASLen())
+
+ aspath.Type = BGP_ASPATH_ATTR_TYPE_CONFED_SET
+ assert.Equal(0, aspath.ASLen())
+
+
+ as4path := As4PathParam{
+ Num: 2,
+ AS: []uint32{65000, 65001},
+ }
+ as4path.Type = BGP_ASPATH_ATTR_TYPE_SEQ
+ assert.Equal(2, as4path.ASLen())
+
+ as4path.Type = BGP_ASPATH_ATTR_TYPE_SET
+ assert.Equal(1, as4path.ASLen())
+
+ as4path.Type = BGP_ASPATH_ATTR_TYPE_CONFED_SEQ
+ assert.Equal(0, as4path.ASLen())
+
+ as4path.Type = BGP_ASPATH_ATTR_TYPE_CONFED_SET
+ assert.Equal(0, as4path.ASLen())
+
+}
+