1 files changed, 74 insertions, 0 deletions
diff --git a/scripts/external_libs/scapy-2.3.1/python2/scapy/layers/rip.py b/scripts/external_libs/scapy-2.3.1/python2/scapy/layers/rip.py
new file mode 100644
index 00000000..1507fe5c
--- /dev/null
+++ b/scripts/external_libs/scapy-2.3.1/python2/scapy/layers/rip.py
@@ -0,0 +1,74 @@
+## This file is part of Scapy
+## See http://www.secdev.org/projects/scapy for more informations
+## Copyright (C) Philippe Biondi <phil@secdev.org>
+## This program is published under a GPLv2 license
+
+"""
+RIP (Routing Information Protocol).
+"""
+
+from scapy.packet import *
+from scapy.fields import *
+from scapy.layers.inet import UDP
+
+class RIP(Packet):
+    name = "RIP header"
+    fields_desc = [
+        ByteEnumField("cmd", 1, {1:"req", 2:"resp", 3:"traceOn", 4:"traceOff",
+                                 5:"sun", 6:"trigReq", 7:"trigResp", 8:"trigAck",
+                                 9:"updateReq", 10:"updateResp", 11:"updateAck"}),
+        ByteField("version", 1),
+        ShortField("null", 0),
+        ]
+
+    def guess_payload_class(self, payload):
+        if payload[:2] == "\xff\xff":
+            return RIPAuth
+        else:
+            return Packet.guess_payload_class(self, payload)
+
+class RIPEntry(RIP):
+    name = "RIP entry"
+    fields_desc = [
+        ShortEnumField("AF", 2, {2:"IP"}),
+        ShortField("RouteTag", 0),
+        IPField("addr", "0.0.0.0"),
+        IPField("mask", "0.0.0.0"),
+        IPField("nextHop", "0.0.0.0"),
+        IntEnumField("metric", 1, {16:"Unreach"}),
+        ]
+
+class RIPAuth(Packet):
+    name = "RIP authentication"
+    fields_desc = [
+        ShortEnumField("AF", 0xffff, {0xffff:"Auth"}),
+        ShortEnumField("authtype", 2, {1:"md5authdata", 2:"simple", 3:"md5"}),
+        ConditionalField(StrFixedLenField("password", None, 16),
+                                        lambda pkt: pkt.authtype == 2),
+        ConditionalField(ShortField("digestoffset", 0),
+                                        lambda pkt: pkt.authtype == 3),
+        ConditionalField(ByteField("keyid", 0),
+                                        lambda pkt: pkt.authtype == 3),
+        ConditionalField(ByteField("authdatalen", 0),
+                                        lambda pkt: pkt.authtype == 3),
+        ConditionalField(IntField("seqnum", 0),
+                                        lambda pkt: pkt.authtype == 3),
+        ConditionalField(StrFixedLenField("zeropad", None, 8),
+                                        lambda pkt: pkt.authtype == 3),
+        ConditionalField(StrLenField("authdata", None,
+                                length_from=lambda pkt: pkt.md5datalen),
+                                        lambda pkt: pkt.authtype == 1)
+        ]
+
+    def pre_dissect(self, s):
+        if s[2:4] == "\x00\x01":
+            self.md5datalen = len(s) - 4
+
+        return s
+
+
+bind_layers( UDP,           RIP,           sport=520)
+bind_layers( UDP,           RIP,           dport=520)
+bind_layers( RIP,           RIPEntry,      )
+bind_layers( RIPEntry,      RIPEntry,      )
+bind_layers( RIPAuth,       RIPEntry,      )