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lib/packet/icmpv6: use checksum_ip()

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Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
This commit is contained in:
Isaku Yamahata 2013-03-29 12:51:00 +09:00 committed by FUJITA Tomonori
parent 2195ba0e4d
commit 3f72ee659d
1 changed files with 2 additions and 8 deletions
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10
ryu/lib/packet/icmpv6.py
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@ -17,6 +17,7 @@ import struct
import sys
import array
import binascii
from . import packet_base
from . import packet_utils
from ryu.lib.mac import haddr_to_bin, haddr_to_str
@ -98,15 +99,8 @@ class icmpv6(packet_base.PacketBase):
hdr += self.data.serialize()
else:
hdr += self.data
src = prev.src
dst = prev.dst
nxt = prev.nxt
if self.csum == 0:
length = len(str(hdr))
ph = struct.pack('!16s16sBBH', prev.src, prev.dst, 0, prev.nxt,
length)
f = ph + hdr + payload
self.csum = packet_utils.checksum(f)
self.csum = packet_utils.checksum_ip(prev, len(hdr), hdr + payload)
struct.pack_into('!H', hdr, 2, self.csum)
return hdr