diff options
| author | ISHIDA Wataru <ishida.wataru@lab.ntt.co.jp> | 2016-07-30 12:42:06 +0000 |
|---|---|---|
| committer | FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> | 2016-07-30 12:21:53 +0900 |
| commit | f9be39235a3aa8e8c7f1553f92da56204da99677 (patch) | |
| tree | 9bc1b9861ef85c993a96a5e8859baa8c2fecb1c9 /packet | |
| parent | c4fe45902e736a858c4870bcab01c9143551f696 (diff) | |
packet/bgp: treat 0x000000 as a withdraw label
though RFC3107 says the label field should be set to 0x800000 in the
withdrawn routes, some platform uses 0x000000 for that purpose.
Signed-off-by: ISHIDA Wataru <ishida.wataru@lab.ntt.co.jp>
Diffstat (limited to 'packet')
| -rw-r--r-- | packet/bgp/bgp.go | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/packet/bgp/bgp.go b/packet/bgp/bgp.go index 2e4e7c4e..f309f8dd 100644 --- a/packet/bgp/bgp.go +++ b/packet/bgp/bgp.go @@ -1108,6 +1108,7 @@ func ParseRouteDistinguisher(rd string) (RouteDistinguisherInterface, error) { // The label information carried (as part of NLRI) in the Withdrawn // Routes field should be set to 0x800000. const WITHDRAW_LABEL = uint32(0x800000) +const ZERO_LABEL = uint32(0) // some platform uses this as withdraw label type MPLSLabelStack struct { Labels []uint32 @@ -1118,7 +1119,7 @@ func (l *MPLSLabelStack) DecodeFromBytes(data []byte) error { foundBottom := false for len(data) >= 3 { label := uint32(data[0])<<16 | uint32(data[1])<<8 | uint32(data[2]) - if label == WITHDRAW_LABEL { + if label == WITHDRAW_LABEL || label == ZERO_LABEL { l.Labels = []uint32{label} return nil } |