test/patches/scapy-2.3.3/bier.patch

   1 diff --git a/scapy/contrib/bier.py b/scapy/contrib/bier.py
   2 new file mode 100644
   3 index 0000000..e173cdb
   4 --- /dev/null
   5 +++ b/scapy/contrib/bier.py
   6 @@ -0,0 +1,53 @@
   7 +# http://trac.secdev.org/scapy/ticket/31
   8 +
   9 +# scapy.contrib.description = MPLS
  10 +# scapy.contrib.status = loads
  11 +
  12 +from scapy.packet import *
  13 +from scapy.fields import *
  14 +from scapy.layers.inet import IP, UDP
  15 +from scapy.layers.inet6 import IPv6
  16 +
  17 +class BIERLength:
  18 +   BIER_LEN_64 = 0
  19 +   BIER_LEN_128 = 1
  20 +   BIER_LEN_256 = 2
  21 +
  22 +
  23 +BIERnhcls = {  1: "MPLS",
  24 +               2: "MPLS",
  25 +               4: "IPv4",
  26 +               5: "IPv6" }
  27 +
  28 +
  29 +class BIFT(Packet):
  30 +   name = "BIFT"
  31 +   fields_desc =  [ BitField("bsl", 0, 4),
  32 +                    BitField("sd", 0, 8),
  33 +                    BitField("set", 0, 8),
  34 +                    BitField("cos", 0, 3),
  35 +                    BitField("s", 1, 1),
  36 +                    ByteField("ttl", 0)  ]
  37 +
  38 +   def guess_payload_class(self, payload):
  39 +      return BIER
  40 +
  41 +
  42 +class BIER(Packet):
  43 +   name = "BIER"
  44 +   fields_desc =  [ BitField("id", 5, 4),
  45 +                    BitField("version", 0, 4),
  46 +                    BitField("length", 0, 4),
  47 +                    BitField("entropy", 0, 20),
  48 +                    BitField("OAM", 0, 2),
  49 +                    BitField("RSV", 0, 2),
  50 +                    BitField("DSCP", 0, 6),
  51 +                    BitEnumField("Proto", 2, 6, BIERnhcls),
  52 +                    ShortField("BFRID", 0),
  53 +                    StrFixedLenField("BitString",
  54 +                                     chr(255)*32, 32) ]
  55 +
  56 +
  57 +bind_layers(BIER, IP,   Proto=4)
  58 +bind_layers(BIER, IPv6, Proto=5)
  59 +bind_layers(UDP, BIFT, dport=8138)