diff options
| -rw-r--r-- | ryu/lib/packet/tcp.py | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/ryu/lib/packet/tcp.py b/ryu/lib/packet/tcp.py index a225847c..a7ef178c 100644 --- a/ryu/lib/packet/tcp.py +++ b/ryu/lib/packet/tcp.py @@ -17,7 +17,6 @@ import struct from . import packet_base from . import packet_utils -import ipv4 class tcp(packet_base.PacketBase): @@ -66,12 +65,6 @@ class tcp(packet_base.PacketBase): if self.csum == 0: length = self.length + len(payload) - if prev.version == 4: - ph = struct.pack('!IIBBH', prev.src, prev.dst, 0, 6, length) - elif prev.version == 6: - ph = struct.pack('!16s16sBBH', prev.src, prev.dst, 0, 6, - length) - f = ph + h + payload - self.csum = packet_utils.checksum(f) + self.csum = packet_utils.checksum_ip(prev, length, h + payload) struct.pack_into('!H', h, 16, self.csum) return h |