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## 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
"""
RADIUS (Remote Authentication Dial In User Service)
"""
import struct
from scapy.packet import *
from scapy.fields import *
class Radius(Packet):
name = "Radius"
fields_desc = [ ByteEnumField("code", 1, {1: "Access-Request",
2: "Access-Accept",
3: "Access-Reject",
4: "Accounting-Request",
5: "Accounting-Accept",
6: "Accounting-Status",
7: "Password-Request",
8: "Password-Ack",
9: "Password-Reject",
10: "Accounting-Message",
11: "Access-Challenge",
12: "Status-Server",
13: "Status-Client",
21: "Resource-Free-Request",
22: "Resource-Free-Response",
23: "Resource-Query-Request",
24: "Resource-Query-Response",
25: "Alternate-Resource-Reclaim-Request",
26: "NAS-Reboot-Request",
27: "NAS-Reboot-Response",
29: "Next-Passcode",
30: "New-Pin",
31: "Terminate-Session",
32: "Password-Expired",
33: "Event-Request",
34: "Event-Response",
40: "Disconnect-Request",
41: "Disconnect-ACK",
42: "Disconnect-NAK",
43: "CoA-Request",
44: "CoA-ACK",
45: "CoA-NAK",
50: "IP-Address-Allocate",
51: "IP-Address-Release",
253: "Experimental-use",
254: "Reserved",
255: "Reserved"} ),
ByteField("id", 0),
ShortField("len", None),
StrFixedLenField("authenticator","",16) ]
def post_build(self, p, pay):
p += pay
l = self.len
if l is None:
l = len(p)
p = p[:2]+struct.pack("!H",l)+p[4:]
return p
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