blob: 6db3667b30b29c807f94ff8d12f1c706f9cec552 [file] [log] [blame]
diff --git a/scapy/layers/geneve.py b/scapy/layers/geneve.py
new file mode 100644
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+++ b/scapy/layers/geneve.py
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+#! /usr/bin/env python3
+# (GENEVE):
+# A Framework for Overlaying Virtualized Layer 2 Networks over Layer 3 Networks
+
+from scapy.packet import Packet, bind_layers
+from scapy.layers.l2 import Ether
+from scapy.layers.inet import IP, UDP
+from scapy.layers.inet6 import IPv6
+from scapy.fields import FlagsField, XByteField, ThreeBytesField, \
+ ConditionalField, ShortField, ByteEnumField, X3BytesField
+
+#
+# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+# |Ver| Opt Len |O|C| Rsvd. | Protocol Type |
+# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+# | Virtual Network Identifier (VNI) | Reserved |
+# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+# | Variable Length Options |
+# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+#
+
+class GENEVE(Packet):
+ name = "GENEVE"
+
+ fields_desc = [
+ # INIT = ver + optlen + o + c + rsvd (all zeros)
+ ShortField("init", 0x0),
+ # PROTOCOL is a 2-bytes field
+ ShortField("protocol", 0x6558),
+ ThreeBytesField("vni", 0),
+ XByteField("reserved2", 0),
+ ]
+
+ def mysummary(self):
+ return self.sprintf("GENEVE (vni=%GENEVE.vni%)")
+
+bind_layers(UDP, GENEVE, dport=6081) # RFC standard port
+bind_layers(UDP, GENEVE, dport=6081) # New IANA assigned port for use with NSH
+bind_layers(UDP, GENEVE, dport=8472) # Linux implementation port
+# By default, set both ports to the RFC standard
+bind_layers(UDP, GENEVE, sport=6081, dport=6081)
+
+bind_layers(GENEVE, Ether)
+bind_layers(GENEVE, IP, NextProtocol=1)
+bind_layers(GENEVE, IPv6, NextProtocol=2)
+bind_layers(GENEVE, Ether, flags=4, NextProtocol=0)
+bind_layers(GENEVE, IP, flags=4, NextProtocol=1)
+bind_layers(GENEVE, IPv6, flags=4, NextProtocol=2)
+bind_layers(GENEVE, Ether, flags=4, NextProtocol=3)
+