2bc940272e
- many of the patches fd.io applies in test/patches/2.3.3 are now upstreamed in 2.4 - 2.4 adds support for IGMPv3 which is my main motivation for the upgrade Change-Id: If2c0a524e3cba320b4a5d8cd07817c6ea2bf0c5a Signed-off-by: Neale Ranns <nranns@cisco.com>
57 lines
2.1 KiB
Diff
57 lines
2.1 KiB
Diff
diff --git a/scapy/layers/geneve.py b/scapy/layers/geneve.py
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new file mode 100644
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index 0000000..e2ca888
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--- /dev/null
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+++ b/scapy/layers/geneve.py
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@@ -0,0 +1,50 @@
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+#! /usr/bin/env python
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+# (GENEVE):
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+# A Framework for Overlaying Virtualized Layer 2 Networks over Layer 3 Networks
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+
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+from scapy.packet import Packet, bind_layers
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+from scapy.layers.l2 import Ether
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+from scapy.layers.inet import IP, UDP
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+from scapy.layers.inet6 import IPv6
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+from scapy.fields import FlagsField, XByteField, ThreeBytesField, \
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+ ConditionalField, ShortField, ByteEnumField, X3BytesField
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+
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+#
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+# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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+# |Ver| Opt Len |O|C| Rsvd. | Protocol Type |
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+# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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+# | Virtual Network Identifier (VNI) | Reserved |
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+# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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+# | Variable Length Options |
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+# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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+#
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+
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+class GENEVE(Packet):
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+ name = "GENEVE"
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+
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+ fields_desc = [
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+ # INIT = ver + optlen + o + c + rsvd (all zeros)
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+ ShortField("init", 0x0),
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+ # PROTOCOL is a 2-bytes field
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+ ShortField("protocol", 0x6558),
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+ ThreeBytesField("vni", 0),
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+ XByteField("reserved2", 0),
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+ ]
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+
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+ def mysummary(self):
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+ return self.sprintf("GENEVE (vni=%GENEVE.vni%)")
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+
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+bind_layers(UDP, GENEVE, dport=6081) # RFC standard port
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+bind_layers(UDP, GENEVE, dport=6081) # New IANA assigned port for use with NSH
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+bind_layers(UDP, GENEVE, dport=8472) # Linux implementation port
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+# By default, set both ports to the RFC standard
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+bind_layers(UDP, GENEVE, sport=6081, dport=6081)
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+
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+bind_layers(GENEVE, Ether)
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+bind_layers(GENEVE, IP, NextProtocol=1)
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+bind_layers(GENEVE, IPv6, NextProtocol=2)
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+bind_layers(GENEVE, Ether, flags=4, NextProtocol=0)
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+bind_layers(GENEVE, IP, flags=4, NextProtocol=1)
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+bind_layers(GENEVE, IPv6, flags=4, NextProtocol=2)
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+bind_layers(GENEVE, Ether, flags=4, NextProtocol=3)
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+
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