Signed-off-by: YAMAMOTO Takashi <[email protected]>
---
ryu/lib/packet/bgp.py | 38 ++++++++++++++++++++++++++++++++++++++
ryu/tests/unit/packet/test_bgp.py | 2 ++
2 files changed, 40 insertions(+)
diff --git a/ryu/lib/packet/bgp.py b/ryu/lib/packet/bgp.py
index eb3e2d1..93ce472 100644
--- a/ryu/lib/packet/bgp.py
+++ b/ryu/lib/packet/bgp.py
@@ -607,6 +607,44 @@ class BGPPathAttributeMpReachNLRI(_PathAttribute):
return buf
+@_PathAttribute.register_type(BGP_ATTR_TYPE_MP_UNREACH_NLRI)
+class BGPPathAttributeMpUnreachNLRI(_PathAttribute):
+ _VALUE_PACK_STR = '!HB' # afi, safi
+ _ATTR_FLAGS = BGP_ATTR_FLAG_OPTIONAL
+
+ def __init__(self, afi, safi, withdrawn_routes,
+ flags=0, type_=None, length=None):
+ super(BGPPathAttributeMpUnreachNLRI, self).__init__(flags=flags,
+ type_=type_,
+ length=length)
+ self.afi = afi
+ self.safi = safi
+ self.withdrawn_routes = withdrawn_routes
+
+ @classmethod
+ def parse_value(cls, buf):
+ (afi, safi,) = struct.unpack_from(cls._VALUE_PACK_STR, buffer(buf))
+ binnlri = buf[struct.calcsize(cls._VALUE_PACK_STR):]
+ nlri = []
+ while binnlri:
+ n, binnlri = _BinAddrPrefix.parser(binnlri)
+ nlri.append(n)
+ return {
+ 'afi': afi,
+ 'safi': safi,
+ 'withdrawn_routes': nlri,
+ }
+
+ def serialize_value(self):
+ buf = bytearray()
+ msg_pack_into(self._VALUE_PACK_STR, buf, 0, self.afi, self.safi)
+ binnlri = bytearray()
+ for n in self.withdrawn_routes:
+ binnlri += n.serialize()
+ buf += binnlri
+ return buf
+
+
class BGPNLRI(_IPAddrPrefix):
pass
diff --git a/ryu/tests/unit/packet/test_bgp.py
b/ryu/tests/unit/packet/test_bgp.py
index 0dc7fb6..6e9f1a4 100644
--- a/ryu/tests/unit/packet/test_bgp.py
+++ b/ryu/tests/unit/packet/test_bgp.py
@@ -96,6 +96,8 @@ class Test_bgp(unittest.TestCase):
bgp.BGPPathAttributeMpReachNLRI(afi=afi.IP, safi=safi.MPLS_VPN,
next_hop='abcd',
nlri=mp_nlri),
+ bgp.BGPPathAttributeMpUnreachNLRI(afi=afi.IP, safi=safi.MPLS_VPN,
+ withdrawn_routes=mp_nlri),
bgp.BGPPathAttributeUnknown(flags=0, type_=100, value=300*'bar')
]
nlri = [
--
1.8.3.1
------------------------------------------------------------------------------
October Webinars: Code for Performance
Free Intel webinars can help you accelerate application performance.
Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from
the latest Intel processors and coprocessors. See abstracts and register >
http://pubads.g.doubleclick.net/gampad/clk?id=60135991&iu=/4140/ostg.clktrk
_______________________________________________
Ryu-devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/ryu-devel
