added dpkt package, initial stateless client implementation

1 files changed, 26 insertions, 0 deletions

diff --git a/external_libs/python/dpkt-1.8.6.2/dpkt/dtp.py b/external_libs/python/dpkt-1.8.6.2/dpkt/dtp.py
new file mode 100644
index 00000000..9fc7ec9f
--- /dev/null
+++ b/external_libs/python/dpkt-1.8.6.2/dpkt/dtp.py
@@ -0,0 +1,26 @@
+# $Id: dtp.py 23 2006-11-08 15:45:33Z dugsong $
+# -*- coding: utf-8 -*-
+"""Dynamic Trunking Protocol."""
+
+import struct
+import dpkt
+
+
+class DTP(dpkt.Packet):
+    __hdr__ = (
+        ('v', 'B', 0),
+    )  # rest is TLVs
+
+    def unpack(self, buf):
+        dpkt.Packet.unpack(self, buf)
+        buf = self.data
+        tvs = []
+        while buf:
+            t, l = struct.unpack('>HH', buf[:4])
+            v, buf = buf[4:4 + l], buf[4 + l:]
+            tvs.append((t, v))
+        self.data = tvs
+
+
+TRUNK_NAME = 0x01
+MAC_ADDR = 0x04