As side effect, IPv6 is also supported.
Signed-off-by: Isaku Yamahata <[email protected]>
---
ryu/lib/packet/udp.py | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/ryu/lib/packet/udp.py b/ryu/lib/packet/udp.py
index 2944f8a..518f4fc 100644
--- a/ryu/lib/packet/udp.py
+++ b/ryu/lib/packet/udp.py
@@ -17,7 +17,6 @@ import struct
from . import packet_base
from . import packet_utils
-import ipv4
class udp(packet_base.PacketBase):
@@ -45,10 +44,8 @@ class udp(packet_base.PacketBase):
h = struct.pack(udp._PACK_STR, self.src_port, self.dst_port,
self.total_length, self.csum)
if self.csum == 0:
- ph = struct.pack('!IIBBH', prev.src, prev.dst, 0, 17,
- self.total_length)
- f = ph + h + payload
- self.csum = packet_utils.checksum(f)
+ self.csum = packet_utils.checksum_ip(
+ prev, self.total_length, h + payload)
h = struct.pack(udp._PACK_STR, self.src_port, self.dst_port,
self.total_length, self.csum)
return h
--
1.7.10.4
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