[Ryu-devel] [PATCH 1/8] packet/bgp: fix bug in serializing AS PATH path attribute

Fri, 09 May 2014 02:54:25 -0700 

Signed-off-by: ISHIDA Wataru <[email protected]>
---
 ryu/lib/packet/bgp.py |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/ryu/lib/packet/bgp.py b/ryu/lib/packet/bgp.py
index 06323a8..e488653 100644
--- a/ryu/lib/packet/bgp.py
+++ b/ryu/lib/packet/bgp.py
@@ -1265,6 +1265,8 @@ class _BGPPathAttributeAsPathCommon(_PathAttribute):
                 type_ = self._AS_SEQUENCE
             l = list(e)
             num_as = len(l)
+            if num_as == 0:
+                continue
             msg_pack_into(self._SEG_HDR_PACK_STR, buf, offset, type_, num_as)
             offset += struct.calcsize(self._SEG_HDR_PACK_STR)
             for i in l:
-- 
1.7.9.5


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