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First public version of Protocol.

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GNU GENERAL PUBLIC LICENSE
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protocol
========
A Simple ASCII Header Generator for Network Protocols

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README.txt
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protocol ################################################################################
======== # ____ _ _ #
# | _ \ _ __ ___ | |_ ___ ___ ___ | | #
# | |_) | '__/ _ \| __/ _ \ / __/ _ \| | #
# | __/| | | (_) | || (_) | (_| (_) | | #
# |_| |_| \___/ \__\___/ \___\___/|_| #
# #
# == A Simple ASCII Header Generator for Network Protocols == #
# #
################################################################################
# #
# Written by: #
# #
# Luis MartinGarcia. #
# -> E-Mail: luis.mgarc@gmail.com #
# -> WWWW: http://www.luismg.com #
# -> GitHub: https://github.com/luismartingarcia #
# #
################################################################################
TABLE OF CONTENTS
0x01 Introduction.............................................................
0x02 Installing Protocol......................................................
0x03 Running Protocol.........................................................
|_ 0x03.1 Displaying Existing Protocols......................................
|_ 0x03.2 Displaying Custom Protocols........................................
0x04 Examples.................................................................
0x05 Support and Bug Reporting................................................
0x01 - INTRODUCTION
Protocol is a simple command-line tool that serves two purposes:
- Provide a simple way for engineers to have a look at standard network
protocol headers, directly from the command-line, without having to
google for the relevant RFC or for ugly header image diagrams.
- Provide a way for researchers and engineers to quickly generate ASCII
RFC-like header diagrams for their own custom protocols.
0x02 - DOWNLOADING PROTOCOL
The latest version of protocol is available via GitHub. It can be downloaded
directly from the following website clicking on the button "Download ZIP".
https://github.com/luismartingarcia/protocol
Alternatively, the code can be checked out using GIT, running the following
command:
git clone https://github.com/luismartingarcia/protocol.git
If prompted for a username and password, don't enter any, just hit Enter.
Documentation and extra information is always available through the following
site:
http://www.luismg.com/protocol
0x02 - INSTALLING PROTOCOL
Protocol can be installed by running the included setup.py script as follows:
setup.py install
Note that in order to install Protocol, root or administrative privileges
are required. On GNU/Linux systems, it can be installed as follows:
sudo ./setup.py install
0x03 - RUNNING PROTOCOL
Once installed, Protocol can be run from the command line. The syntax is
the following:
protocol <EXISTING_PROTOCOL_NAME(S)>
or
protocol <CUSTOM_PROTOCOL_SPECIFICATION(S)>
The following subsections describe each approach.
0x03.1 Displaying Existing Protocols
The first approach lets users print ASCII headers for existing network
protocols. In particular, the following protocols are available.
"ethernet" : Ethernet
"8021q" : IEEE 802.1q
"dot1q" : IEEE 802.1q
"tcp" : Transmission Control Protocol (TCP)
"udp" : User Datagram Protocol (TCP)
"ip" : Internet Protocol (IP), version 4.
"ipv6" : Internet Protocol (IP), version 6.
"icmp" : Internet Control Message Protocol (ICMP)
"icmp-destination": : ICMP Destination Unreachable
"icmp-time" : ICMP Time Exceeded
"icmp-parameter" : ICMP Parameter Problem
"icmp-source" : ICMP Source Quench
"icmp-redirect" : ICMP Redirect
"icmp-echo" : ICMP Echo Request/Reply
"icmp-timestamp" : ICMP Timestamp Request/Reply
"icmp-information" : ICMP Information Request/Reply
"icmpv6" : Internet Control Message Protocol for IPv6 (ICMPv6)
"icmpv6-destination" : ICMPv6 Destination Unreachable
"icmpv6-big" : ICMPv6 Packet Too Big
"icmpv6-time" : ICMPv6 Time Exceeded
"icmpv6-parameter" : ICMPv6 Parameter Problem
"icmpv6-echo" : ICMPv6 Echo Request/Reply
"icmpv6-rsol" : ICMPv6 Router Solicitation
"icmpv6-radv" : ICMPv6 Router Advertisement
"icmpv6-nsol" : ICMPv6 Neighbor Solicitation
"icmpv6-nadv" : ICMPv6 Neighbor Advertisement
"icmpv6-redirect" : ICMPv6 Redirect
One or more of the protocols listed above can be printed. Here are a few
examples:
protocol tcp
protocol dot1q
protocol tcp udp
protocol ipv6 icmpv6 icmpv6-redirect
Note that protocol names don't need to be fully specified, as long as there
is no ambiguity. For example 'protocol et' is equivalent to 'protocol
ethernet'. Whenever there is ambiguity (e.g. 'protocol icmpv6-r', a list of
possible options will be displayed.
$ protocol icmpv6-r
Ambiguous protocol specifier 'icmpv6-r'. Did you mean any of these?
icmpv6-radv
icmpv6-redirect
icmpv6-rsol
0x03.1 Displaying Custom Protocols
Apart from already existing protocols, Protocol can represent any arbitrary
protocol headers. In order to do that, instead of specifying the name of
an existing protocol, a custom protocol specification may be supplied. Such
specification must follow a simple but specific syntax:
"<LIST_OF_FIELDS>[?OPTIONS]"
Where [LIST_OF_FIELDS] is a comma-separated list of protocol field names
and lengths (expressed in bits), and [?OPTIONS] is an optional part that
allows users to specify format modifiers for the ASCII header. Note that if
any of the field names contains spaces, the protocol specification must be
enclosed in double quotes.
0x03.1.1 Field Lists
The most important part of a protocol specification are field lists. This
is just a comma-separated list of name:length tuples, where name represents
the text that describes the protocol field and can contain any character,
except for '?' and length is an integer greater than zero, representing the
number of bits the field takes in the header. Here are a few examples:
Type:8,Code:8,Checksum:16,Message Body:64
Source Port:16,Destination Port:16,Length:16,Checksum:16
Note that there is no whitespace after the commas. This is a restriction
that must be respected.
Also, note that field lengths don't need to align to the length of the
line. If a particular field is too long, Protocol will just wrap it to the
next line. Here are some examples:
$ protocol "Source:16,TTL:8,Reserved:40"
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Source | TTL | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +
| Reserved |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
$ protocol "Source:16,Reserved:40,TTL:8"
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Source | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+
| Reserved | TTL |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
$ protocol "Reserved:32,Target Address:128"
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Reserved |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
+ +
| |
+ Target Address +
| |
+ +
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
0x03.1.2 Options
Once the list of fields has been specified, users may optionally pass
formatting options to control the way the ASCII header is generated.
Options are supplied as a comma-separated list of label=value elements.
The first one is preceded by the '?' sign, which lets Protocol figure out
where the field list ends and where the list of options begins. The options
currently available are the following:
bits=<n> : Number of bits per line. By default it's 32, same as IETF.
This is useful for protocols that don't align perfectly to
32-bit words, like Ethernet.
numbers=<Y/N> : Instructs protocol to print or avoid printing the bit
counts on top of the header.
evenchar=<c> : Instructs protocol to use the supplied character, instead
of the default "-" as the character in even positions of
the horizontal lines.
oddchar=<c> : Same as evenchar but for characters in odd positions of the
horizontal lines. By default it takes the value '+'
startchar=<c> : Instructs protocol to use the supplied character instead
of the default "+" for the first position of an horizontal
line.
endchar=<c> : Same as startchar but for the character in the last
position of the horizonal lines.
sepchar=<c> : Instructs protocol to use the supplied character instead
of the default "|" for the field separator character.
The following diagram shows the character modifiers described above.
Bit counts sepchar(|)
^ ^ |
| | |
| | |
0 | 1 2 3 |
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| Source | TTL | Reserved | <-+
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
^ ^ ^ ^ ^ ^ ^ ^
| | | | | | | |
startchar(+) evenchar( -) oddchar(+) endchar(+)
|<------------------------------------------------------------->|
bits(32)
0x03.3 Command-line Options
Apart from per-protocol format specifiers, Protocol can also be configured
using command-line parameter. The following list provides a description of
each option available.
Usage: /usr/local/bin/protocol {<protocol> or <spec>} [OPTIONS]
PARAMETERS:
<protocol> : Name of an existing protocol
<spec> : Field by field specification of non-existing protocol
OPTIONS:
-b, --bits <n> : Number of bits per line
-f, --file : Read specs from a text file
-h, --help : Displays this help information
-n, --no-numbers : Do not print bit numbers on top of the header
-V, --version : Displays current version
--evenchar <char> : Character for the even positions of horizontal lines
--oddchar <char> : Character for the odd positions of horizontal lines
--startchar <char> : Character that starts horizontal lines
--endchar <char> : Character that ends horizontal lines
--sepchar <char> : Character that separates protocol fields
0x04 - EXAMPLES
This section presents additional examples on how to run protocol.
$ protocol tcp
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Source Port | Destination Port |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Sequence Number |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Acknowledgment Number |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Offset| Res. | Flags | Window |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Checksum | Urgent Pointer |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Options | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
$ protocol "Source Port:16,Destination Port:16,Sequence Number:32,\
Acknowledgment Number:32,Offset:4,Res.:4,Flags:8,Window:16,Checksum:16,\
Urgent Pointer:16,Options:24,Padding:8"
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Source Port | Destination Port |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Sequence Number |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Acknowledgment Number |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Offset| Res. | Flags | Window |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Checksum | Urgent Pointer |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Options | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
$ protocol "Field4:4,Field4:4,Field8:8,Field16:16,Field32:32,Field64:64?\
bits=16,numbers=y,startchar=*,endchar=*,evenchar=-,oddchar=-,sepchar=|"
0 1
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
*-------------------------------*
| Field4| Field4| Field8 |
*-------------------------------*
| Field16 |
*-------------------------------*
| |
* Field32 *
| |
*-------------------------------*
| |
* *
| |
* Field64 *
| |
* *
| |
*-------------------------------*
$ protocol ip --bits 16
0 1
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|Version| IHL |Type of Service|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Total Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Identification |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|Flags| Fragment Offset |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Time to Live | Protocol |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Header Checksum |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
+ Source Address +
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
+ Destination Address +
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Options |
+ +-+-+-+-+-+-+-+-+
| | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
$ protocol udp --oddchar "-" --startchar "-" --endchar "-"
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
-----------------------------------------------------------------
| Source Port | Destination Port |
-----------------------------------------------------------------
| Length | Checksum |
-----------------------------------------------------------------
$ protocol ipv6 --no-numbers
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|Version| Traffic Class | Flow Label |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Payload Length | Next Header | Hop Limit |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
+ +
| |
+ Source Address +
| |
+ +
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
+ +
| |
+ Destination Address +
| |
+ +
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
$ protocol udp icmp
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Source Port | Destination Port |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Length | Checksum |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Code | Checksum |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
+ Message Body +
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
0x05 - SUPPORT AND BUG REPORTING
For any questions, bug reports, bug fixes, feature requests, code
contributions, etc, please contact me using the e-mail address displayed on
the header of this file. Please note that Protocol's support is just like
IP transport: best-effort. I will do my best to deal with your enquiries but
no guarantees. Special support packages are available for those willing to
send me real $$$ via Paypal ;-)
A Simple ASCII Header Generator for Network Protocols

69
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@ -0,0 +1,69 @@
################################################################################
# ____ _ _ #
# | _ \ _ __ ___ | |_ ___ ___ ___ | | #
# | |_) | '__/ _ \| __/ _ \ / __/ _ \| | #
# | __/| | | (_) | || (_) | (_| (_) | | #
# |_| |_| \___/ \__\___/ \___\___/|_| #
# #
# == A Simple ASCII Header Generator for Network Protocols == #
# #
################################################################################
# #
# Written by: #
# #
# Luis MartinGarcia. #
# -> E-Mail: luis.mgarc@gmail.com #
# -> WWWW: http://www.luismg.com #
# -> GitHub: https://github.com/luismartingarcia #
# # #
################################################################################
# #
# This file is part of Protocol. #
# #
# Copyright (C) 2014 Luis MartinGarcia (luis.mgarc@gmail.com) #
# #
# This program is free software: you can redistribute it and/or modify #
# it under the terms of the GNU General Public License as published by #
# the Free Software Foundation, either version 3 of the License, or #
# (at your option) any later version. #
# #
# This program is distributed in the hope that it will be useful, #
# but WITHOUT ANY WARRANTY; without even the implied warranty of #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
# GNU General Public License for more details. #
# #
# You should have received a copy of the GNU General Public License #
# along with this program. If not, see <http://www.gnu.org/licenses/>. #
# #
# Please check file LICENSE.txt for the complete version of the license, #
# as this disclaimer does not contain the full information. Also, note #
# that although Protocol is licensed under the GNU GPL v3 license, it may #
# be possible to obtain copies of it under different, less restrictive, #
# alternative licenses. Requests will be studied on a case by case basis. #
# If you wish to obtain Protocol under a different license, please contact #
# the email address mentioned above. #
# #
################################################################################
# #
# Description: #
# #
# This file contains a few constants used throughout the rest of the source. #
# #
################################################################################
# Application name
APPLICATION_NAME="Protocol"
# Current version
APPLICATION_VERSION="0.1.0"
# Author
APPLICATION_AUTHOR="Luis MartinGarcia"
# Author E-mail
APPLICATION_AUTHOR_EMAIL="luis.mgarc@gmail.com"
# Operation return codes
OP_SUCCESS = 0 # Function performed operation successfully
OP_FAILURE = -1 # Error encountered while performing operation

739
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#!/usr/bin/python
################################################################################
# ____ _ _ #
# | _ \ _ __ ___ | |_ ___ ___ ___ | | #
# | |_) | '__/ _ \| __/ _ \ / __/ _ \| | #
# | __/| | | (_) | || (_) | (_| (_) | | #
# |_| |_| \___/ \__\___/ \___\___/|_| #
# #
# == A Simple ASCII Header Generator for Network Protocols == #
# #
################################################################################
# #
# Written by: #
# #
# Luis MartinGarcia. #
# -> E-Mail: luis.mgarc@gmail.com #
# -> WWWW: http://www.luismg.com #
# -> GitHub: https://github.com/luismartingarcia #
# #
################################################################################
# #
# This file is part of Protocol. #
# #
# Copyright (C) 2014 Luis MartinGarcia (luis.mgarc@gmail.com) #
# #
# This program is free software: you can redistribute it and/or modify #
# it under the terms of the GNU General Public License as published by #
# the Free Software Foundation, either version 3 of the License, or #
# (at your option) any later version. #
# #
# This program is distributed in the hope that it will be useful, #
# but WITHOUT ANY WARRANTY; without even the implied warranty of #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
# GNU General Public License for more details. #
# #
# You should have received a copy of the GNU General Public License #
# along with this program. If not, see <http://www.gnu.org/licenses/>. #
# #
# Please check file LICENSE.txt for the complete version of the license, #
# as this disclaimer does not contain the full information. Also, note #
# that although Protocol is licensed under the GNU GPL v3 license, it may #
# be possible to obtain copies of it under different, less restrictive, #
# alternative licenses. Requests will be studied on a case by case basis. #
# If you wish to obtain Protocol under a different license, please contact #
# the email address mentioned above. #
# #
################################################################################
# #
# Description: #
# #
# Protocol is a command-line tool that provides quick access to the most #
# common network protocol headers in ASCII (RFC-like) format. It also has the #
# ability to create ASCII headers for custom protocols defined by the user #
# through a very simple syntax. #
# #
################################################################################
# STANDARD LIBRARY IMPORTS
import sys
from datetime import date
# INTERNAL IMPORTS
from constants import *
import specs
# CLASS DEFINITIONS
class ProtocolException(Exception):
"""
This class represents exceptions raised by the Protocol class
"""
def __init__(self, errmsg):
self.errmsg=errmsg
def __str__(self):
return str(self.errmsg)
class Protocol():
"""
This class represents a network protocol header. Objects are constructed by
passing a textual protocol specification. Once that is done, instances
can be printed by converting them to a str type.
"""
def __init__(self, spec):
"""
Class constructor.
@param spec is the textual specification that describes the protocol.
"""
self.hdr_char_start="+" # Character for start of the border line
self.hdr_char_end="+" # Character for end of the border line
self.hdr_char_fill_odd="+" # Fill character for border odd positions
self.hdr_char_fill_even="-" # Fill character for border even positions
self.hdr_char_sep="|" # Field separator character
self.bits_per_line=32 # Number of bits per line
self.do_print_top_tens=True # True: print top numbers for bit tens
self.do_print_top_units=True # True: print top numbers for bit units
self.field_list=[] # Header fields to be printed out
self.parse_spec(spec) # Parse the received spec and populate self.field_list
def parse_spec(self, spec):
"""
Parses a textual protocol spec and stores the relevant internal state
so such spec can be later converted to a nice ASCII diagram.
@return the list of protocol fields, as a dictionary containing
keys 'len' and 'text'. The list is returned for completeness but no
caller is expected to store or use such list.
@raise ProtocolException in case the supplied spec is not valid
"""
if "?" in spec:
parts=spec.split("?")
fields=parts[0]
opts=parts[1]
if spec.count("?")>1:
raise ProtocolException("FATAL: Character '?' may only be used as an option separator.")
else:
fields=spec
opts=None
# Parse field spec
items=fields.split(",")
for item in items:
try:
text, bits = item.split(":")
bits=int(bits)
if bits<=0:
raise ProtocolException("FATAL: Fields must be at least one bit long (%s)" %spec)
except ProtocolException:
raise
except:
raise ProtocolException("FATAL: Invalid field_list specification (%s)" %spec)
self.field_list.append({"text":text, "len":bits})
# Parse options
if opts is not None:
opts=opts.split(",")
for opt in opts:
try:
var, value = opt.split("=")
if var.lower()=="bits":
self.bits_per_line=int(value)
if self.bits_per_line<=0:
raise ProtocolException("FATAL: Invalid value for 'bits' option (%s)" % value)
elif var.lower()=="numbers":
if value.lower() in ["0", "n", "no", "none", "false"]:
self.do_print_top_tens=False
self.do_print_top_units=False
elif value.lower() in ["1", "y", "yes", "none", "true"]:
self.do_print_top_tens=True
self.do_print_top_units=True
else:
raise ProtocolException("FATAL: Invalid value for 'numbers' option (%s)" % value)
elif var.lower() in ["oddchar", "evenchar", "startchar", "endchar", "sepchar"]:
if len(value)>1 or len(value)<=0:
raise ProtocolException("FATAL: Invalid value for '%s' option (%s)" % (var, value))
else:
if var.lower()=="oddchar":
self.hdr_char_fill_odd=value
elif var.lower()=="evenchar":
self.hdr_char_fill_even=value
elif var.lower()=="startchar":
self.hdr_char_start=value
elif var.lower()=="endchar":
self.hdr_char_end=value
elif var.lower()=="sepchar":
self.hdr_char_sep=value
except ProtocolException:
raise
except:
raise ProtocolException("FATAL: Invalid options specification (%s)" % opt)
return self.field_list
def _get_top_numbers(self):
"""
@return a string representing the bit units and bit tens on top of the
protocol header. Note that a proper string is only returned if one or
both self.do_print_top_tens and self.do_print_top_units is True.
The returned string is not \n terminated, but it may contain a newline
character in the middle.
"""
lines=["", ""]
if self.do_print_top_tens is True:
for i in range(0, self.bits_per_line):
if str(i)[-1:]=="0":
lines[0]+=" %s" % str(i)[0]
else:
lines[0]+=" "
lines[0]+="\n"
if self.do_print_top_units is True:
for i in range(0, self.bits_per_line):
lines[1]+=" %s" % str(i)[-1:]
#lines[1]+="\n"
result = "".join(lines)
return result if len(result)>0 else None
def _get_horizontal(self, width=None):
"""
@return the horizontal border line that separates field rows.
@param width controls how many field bits the line should cover. By
default, if no width is supplied, the line covers the hole length of
the header.
"""
if width is None:
width=self.bits_per_line
if width<=0:
return ""
else:
a="%s" % self.hdr_char_start
b=(self.hdr_char_fill_even+self.hdr_char_fill_odd)*(width-1)
c="%s%s" % (self.hdr_char_fill_even, self.hdr_char_end)
return a+b+c
def _get_separator(self, line_end=""):
"""
@return a string containing a protocol field separator. Returned string
is a single character and matches whatever is stored in self.hdr_char_sep
"""
return self.hdr_char_sep
def _process_field_list(self):
"""
Processes the list of protocol fields that we got from the spec and turns
it into something that we can print easily (useful for cases when we have
protocol fields that span more than one line). This is just a helper
function to make __str__()'s life easier.
"""
new_fields=[]
bits_in_line=0
i=0
while i < len(self.field_list):
# Extract all the info we need about the field
field=self.field_list[i]
field_text= field['text']
field_len= field['len']
field['MF']=False
available_in_line = self.bits_per_line - bits_in_line
# If we have enough space on this line to include the current field
# then just keep it as it is.
if available_in_line >= field_len:
new_fields.append(field)
bits_in_line+=field_len
i+=1
if bits_in_line==self.bits_per_line:
bits_in_line=0
# Otherwise, split the field into two parts, one blank and one with
# the actual field text
else:
# Case 1: We have a field that is perfectly aligned and it
# has a length that is multiple of our line length
if bits_in_line==0 and field_len%self.bits_per_line==0:
new_fields.append(field)
i+=1
bits_in_line=0
# Case 2: We weren't that lucky and the field is either not
# aligned or we can't print it using an exact number of full
# lines
else:
# If we have more space in the current line than in the next,
# then put the field text in this one
if available_in_line >= field_len-available_in_line:
new_field = {'text':field_text, 'len':available_in_line, "MF":True}
new_fields.append(new_field)
field['text']=""
field['len']=field_len-available_in_line
field['MF']=False
else:
new_field = {'text':"", 'len':available_in_line, "MF":True}
new_fields.append(new_field)
field['text']=field_text
field['len']=field_len-available_in_line
field['MF']=False
bits_in_line=0
continue
return new_fields
# Convert to string
def __str__(self):
"""
Converts the protocol specification stored in the object to a nice
ASCII diagram like the ones that appear in RFCs. Conversion supports
fields of any length, and supports field that span more than one
line in the diagram.
@return a string containing the ASCII representation of the protocol
header.
"""
# First of all, process our field list. This does some magic to make
# the algorithm work for fields that span more than one line
proto_fields = self._process_field_list()
lines=[]
numbers=self._get_top_numbers()
if numbers is not None:
lines.append(numbers)
lines.append(self._get_horizontal())
# Print all protocol fields
bits_in_line=0
current_line=""
fields_done=0
p=-1
while p < len(proto_fields)-1:
p+=1
# Extract all the info we need about the field
field = proto_fields[p]
field_text= field['text']
field_len= field['len']
field_mf = field['MF'] is True # Field has more fragments
# If the field text is too long, we truncate it, and add a dot
# at the end.
if len(field_text) > (field_len*2)-1:
field_text=field_text[0:(field_len*2)-1]
if len(field_text)>1:
field_text=field_text[0:-1]+"."
# If we have space for the whole field in the current line, go
# ahead and add it
if self.bits_per_line-bits_in_line >= field_len:
# If this is the first thing we print on a line, add the
# starting character
if bits_in_line==0:
current_line+=self._get_separator()
# Add the whole field
current_line+=str.center(field_text, (field_len*2)-1)
# Update counters
bits_in_line+=field_len
fields_done+=1
# If this is the last character in the line, store the line
if bits_in_line==self.bits_per_line:
current_line+=self._get_separator()
lines.append(current_line)
current_line=""
bits_in_line=0
# When we have a fragmented field, we may need to suppress
# the floor of the field, so the current line connects
# with the one that follows. E.g:
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | field16 | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +
# | field |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
if field_mf is True:
if proto_fields[p+1]['len'] > self.bits_per_line - field_len:
# Print some +-+-+ to cover the previous field
line_left=self._get_horizontal(self.bits_per_line - field_len)
if len(line_left)==0:
line_left=self.hdr_char_start
# Now print some empty space to cover the part that
# we can join with the field below.
# Case 1: If the next field reaches the end of its
# line, then we need to print whitespace until the
# end our line
if proto_fields[p+1]['len'] >= self.bits_per_line:
line_center=" "* ((2*(field_len)-1))
line_right=self.hdr_char_end
# Case 2: the field in the next row is not big enough
# to cover all the space we'd like to join, so we
# just print whitespace to cover as much as we can
else:
line_center=" "* ((2*((proto_fields[p+1]['len']-(self.bits_per_line-field_len))))-1)
line_right=self._get_horizontal(self.bits_per_line-proto_fields[p+1]['len'])
lines.append(line_left+line_center+line_right)
else:
lines.append(self._get_horizontal())
else:
lines.append(self._get_horizontal())
# If this is not the last character of the line but we have no
# more fields to print, wrap up
elif fields_done==len(proto_fields):
current_line+=self._get_separator()
lines.append(current_line)
lines.append(self._get_horizontal(bits_in_line))
else:
# Add the separator character
current_line+=self.hdr_char_sep
# We don't have enough space for the field on this line.
else:
# Case 1: We are at the beginning of a new line and we need to
# span more than one line
if bits_in_line==0:
# Case 1a: We have a multiple of the number of bits per line
if field_len%self.bits_per_line==0:
# Compute how many lines in total we need to print for this
# big field.
lines_to_print = int(((field_len/self.bits_per_line)*2)-1)
# We print the field text in the central line
central_line=int(lines_to_print/2)
# Print all those lines
for i in range(0, lines_to_print):
# Let's figure out which character we need to use
# to start and end the current line
if i%2==1:
start_line=self.hdr_char_start
end_line=self.hdr_char_end
else:
start_line=self.hdr_char_sep
end_line=self.hdr_char_sep
# This is the line where we need to print the field
# text.
if i == central_line:
lines.append(start_line + str.center(field_text, (self.bits_per_line*2)-1) + end_line)
# This is a line we need to leave blank
else:
lines.append(start_line + (" " * ((self.bits_per_line*2)-1)) + end_line)
# If we just added the last line, add a horizontal separator
if i==lines_to_print-1:
lines.append(self._get_horizontal())
# Case 2: We are not at the beginning of the line and we need
# to print something that does not fit in the current line
else:
# This should never happen, since our _process_field_list()
# divides fields in chunks so we never have the case of
# something spanning lines in a weird manner
assert(False)
result= "\n".join(lines)
return result
class Main():
"""
This class does all the boring task of a command-line application. It parses
user input, displays usage, parses input files, etc.
"""
def __init__(self):
"""
Class constructor. Nothing fancy.
"""
self.cmd_line_args=None # Copy of the user argv
self.protocols=[] # List of protocols to print out
self.bits_per_line=None # Number of bits per line to print
self.skip_numbers=None # True to avoid printing bit units and tens
self.hdr_char_start=None # Character for start of the border line
self.hdr_char_end=None # Character for end of the border line
self.hdr_char_fill_odd=None # Fill character for border odd positions
self.hdr_char_fill_even=None # Fill character for border even positions
self.hdr_char_sep=None # Field separator character
def display_help(self):
"""
Displays command-line usage help to standard output.
"""
print("")
print("%s v%s" % (APPLICATION_NAME, APPLICATION_VERSION))
print("Copyright (C) %i, %s (%s)." % (max(2014, date.today().year), APPLICATION_AUTHOR, APPLICATION_AUTHOR_EMAIL))
print("This software comes with ABSOLUTELY NO WARRANTY.")
print("")
self.display_usage()
print("PARAMETERS:")
print(" <protocol> : Name of an existing protocol")
print(" <spec> : Field by field specification of non-existing protocol")
print("OPTIONS:")
print(" -b, --bits <n> : Number of bits per line")
print(" -f, --file : Read specs from a text file")
print(" -h, --help : Displays this help information")
print(" -n, --no-numbers : Do not print bit numbers on top of the header")
print(" -V, --version : Displays current version")
print(" --evenchar <char> : Character for the even positions of horizontal table borders")
print(" --oddchar <char> : Character for the odd positions of horizontal table borders")
print(" --startchar <char> : Character that starts horizontal table borders")
print(" --endchar <char> : Character that ends horizontal table borders")
print(" --sepchar <char> : Character that separates protocol fields")
def get_usage(self):
"""
@return a string containing application usage information
"""
return "Usage: %s {<protocol> or <spec>} [OPTIONS]" % self.cmd_line_args[0]
def display_usage(self):
"""
Prints usage information to standard output
"""
print(self.get_usage())
def parse_config_file(self, filename):
"""
This method parses the supplied configuration file and adds any protocols to our
list of protocols to print.
@return The number of protocols parsed
"""
i=0
# Read the contents of the whole file
try:
f = open(filename)
lines = f.readlines()
f.close()
except:
print("Error while reading file %s. Please make sure it exists and it's readable." % filename)
sys.exit(1)
# Parse protocol specs, line by line
for line in lines:
# Sanitize the line
line=line.strip()
# If it starts with #, or is an empty line ignore it
if line.startswith("#") or len(line)==0:
continue
# If we have something else, treat it as a protocol spec
proto=Protocol(line)
self.protocols.append(proto)
i+=1
return i
def parse_cmd_line_args(self, argv, is_config_file=False):
"""
Parses command-line arguments and stores any relevant information
internally
"""
# Store a reference to command line args for later use.
if is_config_file==False:
self.cmd_line_args = argv
# Check we have received enough command-line parameters
if len(argv) == 1 and is_config_file is False:
print(self.get_usage())
sys.exit(1)
else:
skip_arg=False
for i in range(1, len(argv)):
# Useful for args like -c <filename>. This avoids parsing the
# filename as it if was a command-line flag.
if skip_arg==True:
skip_arg=False
continue
# Spec file
if argv[i]=="-f" or argv[i]=="--file":
# Make sure we have an actual parameter after the flag
if (i+1)>=len(argv):
return OP_FAILURE, "Expected parameter after %s\n%s" % (argv[i], self.get_usage())
skip_arg=True
# Parse the config file
protos = self.parse_config_file(argv[i+1])
if protos <= 0:
return OP_FAILURE, "No protocol specifications found in the supplied file (%s)" % argv[i+1]
# Bits per line
elif argv[i]=="-b" or argv[i]=="--bits":
# Make sure we have an actual parameter after the flag
if (i+1)>=len(argv):
return OP_FAILURE, "Expected parameter after %s\n%s" % (argv[i], self.get_usage())
skip_arg=True
# Parse the config file
try:
self.bits_per_line=int(argv[i+1])
if self.bits_per_line<=0:
return OP_FAILURE, "Invalid number of bits per line supplied (%s)" % argv[i+1]
except:
return OP_FAILURE, "Invalid number of bits per line supplied (%s)" % argv[i+1]
# Avoid displaying numbers on top of the header
elif argv[i]=="-n" or argv[i]=="--no-numbers":
self.skip_numbers=True
# Character variations
elif argv[i] in ["--oddchar", "--evenchar", "--startchar", "--endchar", "--sepchar"]:
# Make sure we have an actual parameter after the flag
if (i+1)>=len(argv):
return OP_FAILURE, "Expected parameter after %s\n%s" % (argv[i], self.get_usage())
skip_arg=True
# Make sure we got a single character, not more
if len(argv[i+1])!=1:
return OP_FAILURE, "A single character is expected after %s\n%s" % (argv[i], self.get_usage())
# Now let's store whatever character spec we got
if argv[i]=="--oddchar":
self.hdr_char_fill_odd=argv[i+1]
elif argv[i]=="--evenchar":
self.hdr_char_fill_even=argv[i+1]
elif argv[i]=="--startchar":
self.hdr_char_start=argv[i+1]
elif argv[i]=="--endchar":
self.hdr_char_end=argv[i+1]
elif argv[i]=="--sepchar":
self.hdr_char_sep=argv[i+1]
# Display help
elif argv[i]=="-h" or argv[i]=="--help":
self.display_help()
sys.exit(0)
# Display version
elif argv[i]=="-V" or argv[i]=="--version":
print("%s v%s" % (APPLICATION_NAME, APPLICATION_VERSION))
sys.exit(0)
# Incorrect option supplied
elif argv[i].startswith("-"):
print("ERROR: Invalid option supplied (%s)" % argv[i])
sys.exit(1)
# Protocol name or protocol spec
else:
# If it contains ":" characters, we have a protocol spec
if argv[i].count(":")>0:
spec = argv[i]
# Otherwise, the user meant to display an existing protocol
else:
# If we got an exact match, end of story
if argv[i] in specs.protocols:
spec = specs.protocols[argv[i]]
# Otherwise, we may have received a partial match so
# we need to figure out which protocol the user meant.
# If the specification is ambiguous, we will error
else:
start_with_the_same=[]
for spec in specs.protocols:
if spec.startswith(argv[i]):
start_with_the_same.append(spec)
# If we only have one entry, it means we got some
# shortened version of the protocol name but no
# ambiguity. In that case, we will use the match.
if len(start_with_the_same)==1:
spec=specs.protocols[start_with_the_same[0]]
elif len(start_with_the_same)==0:
print("ERROR: supplied protocol '%s' does not exist." % argv[i]);
sys.exit(1)
else:
print("Ambiguous protocol specifier '%s'. Did you mean any of these?" % argv[i])
for spec in start_with_the_same:
print(" %s" % spec)
sys.exit(1)
# Finally, based on the spec, instance an actual protocol.
# Note that if the spec is incorect, the Protocol() consutrctor
# will call sys.exit() itself, so there is no need to do
# error checking here.
try:
proto = Protocol(spec)
self.protocols.append(proto)
except ProtocolException as e:
print("ERROR: %s" % str(e))
sys.exit(1)
if len(self.protocols)==0:
print("ERROR: Missing protocol")
sys.exit(1)
return OP_SUCCESS, None
def run(self):
"""
This is Protocol's 'core' method: parses command line argument and prints
any necessary protocol to standard output
"""
# Parse command-line arguments
code, err = self.parse_cmd_line_args(sys.argv)
if code!=OP_SUCCESS:
print("ERROR: %s" % err)
sys.exit(1)
# Print the appropriate protocol headers
for i in range(0, len(self.protocols)):
# Modify the properties of the object if the user passed any
# options that require it
if self.bits_per_line is not None:
self.protocols[i].bits_per_line = self.bits_per_line
if self.skip_numbers is not None:
if self.skip_numbers is True:
self.protocols[i].do_print_top_tens=False
self.protocols[i].do_print_top_units=False
else:
self.protocols[i].do_print_top_tens=True
self.protocols[i].do_print_top_units=True
if self.hdr_char_end is not None:
self.protocols[i].hdr_char_end=self.hdr_char_end
if self.hdr_char_start is not None:
self.protocols[i].hdr_char_start=self.hdr_char_start
if self.hdr_char_fill_even is not None:
self.protocols[i].hdr_char_fill_even=self.hdr_char_fill_even
if self.hdr_char_fill_odd is not None:
self.protocols[i].hdr_char_fill_odd=self.hdr_char_fill_odd
if self.hdr_char_sep is not None:
self.protocols[i].hdr_char_sep=self.hdr_char_sep
print(self.protocols[i])
if len(self.protocols)>1 and i!=len(self.protocols)-1:
print("")
# Main function
def main():
"""
Main function. Runs the Protocol program.
"""
# Instance our core class
program = Main()
# Do our magic
program.run()
# THIS IS THE START OF THE EXECUTION
if __name__ == "__main__":
main()

62
setup.py Executable file
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@ -0,0 +1,62 @@
#!/usr/bin/python
################################################################################
# ____ _ _ #
# | _ \ _ __ ___ | |_ ___ ___ ___ | | #
# | |_) | '__/ _ \| __/ _ \ / __/ _ \| | #
# | __/| | | (_) | || (_) | (_| (_) | | #
# |_| |_| \___/ \__\___/ \___\___/|_| #
# #
# == A Simple ASCII Header Generator for Network Protocols == #
# #
################################################################################
# #
# Written by: #
# #
# Luis MartinGarcia. #
# -> E-Mail: luis.mgarc@gmail.com #
# -> WWWW: http://www.luismg.com #
# -> GitHub: https://github.com/luismartingarcia #
# #
################################################################################
# #
# This file is part of Protocol. #
# #
# Copyright (C) 2014 Luis MartinGarcia (luis.mgarc@gmail.com) #
# #
# This program is free software: you can redistribute it and/or modify #
# it under the terms of the GNU General Public License as published by #
# the Free Software Foundation, either version 3 of the License, or #
# (at your option) any later version. #
# #
# This program is distributed in the hope that it will be useful, #
# but WITHOUT ANY WARRANTY; without even the implied warranty of #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
# GNU General Public License for more details. #
# #
# You should have received a copy of the GNU General Public License #
# along with this program. If not, see <http://www.gnu.org/licenses/>. #
# #
# Please check file LICENSE.txt for the complete version of the license, #
# as this disclaimer does not contain the full information. Also, note #
# that although Protocol is licensed under the GNU GPL v3 license, it may #
# be possible to obtain copies of it under different, less restrictive, #
# alternative licenses. Requests will be studied on a case by case basis. #
# If you wish to obtain Protocol under a different license, please contact #
# the email address mentioned above. #
# #
################################################################################
# #
# Description: #
# #
# This is the installer script for Protocol. This can be run from the #
# command-line as follows: #
# #
# sudo ./setup.py install #
# #
################################################################################
from distutils.core import setup, Extension
setup(name='protocol',
version='0.1',
scripts=['protocol', 'constants.py', 'specs.py']
)

736
specs.py Normal file
View File

@ -0,0 +1,736 @@
################################################################################
# ____ _ _ #
# | _ \ _ __ ___ | |_ ___ ___ ___ | | #
# | |_) | '__/ _ \| __/ _ \ / __/ _ \| | #
# | __/| | | (_) | || (_) | (_| (_) | | #
# |_| |_| \___/ \__\___/ \___\___/|_| #
# #
# == A Simple ASCII Header Generator for Network Protocols == #
# #
################################################################################
# #
# Written by: #
# #
# Luis MartinGarcia. #
# -> E-Mail: luis.mgarc@gmail.com #
# -> WWWW: http://www.luismg.com #
# -> GitHub: https://github.com/luismartingarcia #
# #
################################################################################
# #
# This file is part of Protocol. #
# #
# Copyright (C) 2014 Luis MartinGarcia (luis.mgarc@gmail.com) #
# #
# This program is free software: you can redistribute it and/or modify #
# it under the terms of the GNU General Public License as published by #
# the Free Software Foundation, either version 3 of the License, or #
# (at your option) any later version. #
# #
# This program is distributed in the hope that it will be useful, #
# but WITHOUT ANY WARRANTY; without even the implied warranty of #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
# GNU General Public License for more details. #
# #
# You should have received a copy of the GNU General Public License #
# along with this program. If not, see <http://www.gnu.org/licenses/>. #
# #
# Please check file LICENSE.txt for the complete version of the license, #
# as this disclaimer does not contain the full information. Also, note #
# that although Protocol is licensed under the GNU GPL v3 license, it may #
# be possible to obtain copies of it under different, less restrictive, #
# alternative licenses. Requests will be studied on a case by case basis. #
# If you wish to obtain Protocol under a different license, please contact #
# the email address mentioned above. #
# #
################################################################################
# #
# Description: #
# #
# This file contains popular protocol specs. #
# #
################################################################################
#
# 0 1 2 3 4
# 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Source Address |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Destination Address |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | EtherType | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +
# | |
# + Payload +
# | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
ethernet="Source Address:48,Destination Address:48,EtherType:16,Payload:128?bits=48"
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Source Address |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Destination Address |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | TPID (0x8100) | PCP |D| VLAN ID | EtherType |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | |
# + Payload +
# | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
dot1q="Source Address:48,Destination Address:48,TPID (0x8100):16,PCP:3,D:1,\
VLAN ID:12,EtherType:16,Payload:96?bits=48"
# 0 1 2 3
# 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Source Port | Destination Port |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Sequence Number |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Acknowledgment Number |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Offset| Res. | Flags | Window |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Checksum | Urgent Pointer |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Options | Padding |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | data |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
tcp="Source Port:16,Destination Port:16,Sequence Number:32,\
Acknowledgment Number:32,Offset:4,Res.:4,Flags:8,Window:16,Checksum:16,\
Urgent Pointer:16,Options:24,Padding:8"
# 0 1 2 3
# 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Source Port | Destination Port |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Length | Checksum |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
udp="Source Port:16,Destination Port:16,Length:16,Checksum:16"
# 0 1 2 3
# 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# |Version| IHL |Type of Service| Total Length |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Identification |Flags| Fragment Offset |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Time to Live | Protocol | Header Checksum |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Source Address |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Destination Address |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Options | Padding |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
ip="Version:4,IHL:4,Type of Service:8,Total Length:16,Identification:16,\
Flags:3,Fragment Offset:13,Time to Live:8,Protocol:8,Header Checksum:16,\
Source Address:32,Destination Address:32,Options:24,Padding:8"
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# |Version| Traffic Class | Flow Label |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Payload Length | Next Header | Hop Limit |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | |
# + +
# | |
# + Source Address +
# | |
# + +
# | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | |
# + +
# | |
# + Destination Address +
# | |
# + +
# | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
ipv6="Version:4,Traffic Class:8,Flow Label:20,Payload Length:16,Next Header:8,\
Hop Limit:8, Source Address:128, Destination Address:128"
# ICMPv4 Generic Header
#
# 0 1 2 3
# 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Type | Code | Checksum |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | |
# + Message Body +
# | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
icmp="Type:8,Code:8,Checksum:16,Message Body:64"
# ICMPv4 Destination Unreachable Message
#
# 0 1 2 3
# 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Type | Code | Checksum |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | unused |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Internet Header + 64 bits of Original Data Datagram |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
icmp_destination="Type:8,Code:8,Checksum:16,Unused:32,Internet Header + 64 bits\
of Original Data Datagram:64"
# ICMPv4 Time Exceeded Message
#
# 0 1 2 3
# 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Type | Code | Checksum |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | unused |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Internet Header + 64 bits of Original Data Datagram |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
icmp_time="Type:8,Code:8,Checksum:16,Unused:32,Internet Header + 64 bits of\
Original Data Datagram:64"
# ICMPv4 Parameter Problem Message
#
# 0 1 2 3
# 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Type | Code | Checksum |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Pointer | unused |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Internet Header + 64 bits of Original Data Datagram |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
icmp_parameter="Type:8,Code:8,Checksum:16,Pointer:8,Unused:24,Internet Header\
+ 64 bits of Original Data Datagram:64"
# ICMPv4 Source Quench Message
#
# 0 1 2 3
# 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Type | Code | Checksum |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | unused |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Internet Header + 64 bits of Original Data Datagram |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
icmp_source="Type:8,Code:8,Checksum:16,Unused:32,Internet Header + 64 bits of\
Original Data Datagram:64"
# ICMPv4 Redirect Message
#
# 0 1 2 3
# 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Type | Code | Checksum |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Gateway Internet Address |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Internet Header + 64 bits of Original Data Datagram |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
icmp_redirect="Type:8,Code:8,Checksum:16,Gateway Internet Address:32,Internet\
Header + 64 bits of Original Data Datagram:64"
# ICMPv4 Echo or Echo Reply Message
#
# 0 1 2 3
# 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Type | Code | Checksum |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Identifier | Sequence Number |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Data ...
# +-+-+-+-+-
icmp_echo="Type:8,Code:8,Checksum:16,Identifier:16,Sequence Number:16,Data:64"
# ICMPv4 Timestamp or Timestamp Reply Message
#
# 0 1 2 3
# 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Type | Code | Checksum |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Identifier | Sequence Number |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Originate Timestamp |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Receive Timestamp |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Transmit Timestamp |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
icmp_timestamp="Type:8,Code:8,Checksum:16,Identifier:16,Sequence Number:16,\
Originate Timestamp:32,Receive Timestamp:32,Transmit Timestamp:32"
# ICMPv4 Information Request or Information Reply Message
#
# 0 1 2 3
# 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Type | Code | Checksum |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Identifier | Sequence Number |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
icmp_information="Type:8,Code:8,Checksum:16,Identifier:16,Sequence Number:16"
# ICMPv6 General Format
#
# 0 1 2 3
# 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Type | Code | Checksum |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | |
# + Message Body +
# | |
icmpv6="Type:8,Code:8,Checksum:16,Message Body:64"
# ICMPv6 Destination Unreachable Message
#
# 0 1 2 3
# 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Type | Code | Checksum |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Unused |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Invoking packet data (without exceeding minimum IPv6 MTU) |
# + as possible without the ICMPv6 packet +
# | exceeding the minimum IPv6 MTU [IPv6] |
icmpv6_destination="Type:8,Code:8,Checksum:16,Unused:32,Invoking packet data\
(without exceeding minimum IPv6 MTU):64"
# ICMPv6 Packet Too Big Message
#
# 0 1 2 3
# 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Type | Code | Checksum |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | MTU |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | As much of invoking packet |
# + as possible without the ICMPv6 packet +
# | exceeding the minimum IPv6 MTU [IPv6] |
icmpv6_big="Type:8,Code:8,Checksum:16,MTU:32,Invoking packet data (without\
exceeding minimum IPv6 MTU):64"
# ICMPv6 Time Exceeded Message
#
# 0 1 2 3
# 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Type | Code | Checksum |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Unused |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | As much of invoking packet |
# + as possible without the ICMPv6 packet +
# | exceeding the minimum IPv6 MTU [IPv6] |
icmpv6_time="Type:8,Code:8,Checksum:16,Unused:32,Invoking packet data (without\
exceeding minimum IPv6 MTU):64"
# ICMPv6 Parameter Problem Message
#
# 0 1 2 3
# 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Type | Code | Checksum |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Pointer |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | As much of invoking packet |
# + as possible without the ICMPv6 packet +
# | exceeding the minimum IPv6 MTU [IPv6] |
icmpv6_parameter="Type:8,Code:8,Checksum:16,Pointer:32,Invoking packet data\
(without exceeding minimum IPv6 MTU):64"
# ICMPv6 Echo Request and Reply Message
#
# 0 1 2 3
# 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Type | Code | Checksum |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Identifier | Sequence Number |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Data ...
# +-+-+-+-+-
icmpv6_echo="Type:8,Code:8,Checksum:16,Identifier:16,Sequence Number:16,Data:64"
# ICMPv6 Router Solicitation Message Format
#
# 0 1 2 3
# 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Type | Code | Checksum |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Reserved |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Options ...
# +-+-+-+-+-+-+-+-+-+-+-+-
icmpv6_rsol="Type:8,Code:8,Checksum:16,Reserved:32,Options:64"
# ICMPv6 Router Advertisement Message Format
#
# 0 1 2 3
# 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Type | Code | Checksum |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Cur Hop Limit |M|O| Reserved | Router Lifetime |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Reachable Time |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Retrans Timer |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Options ...
# +-+-+-+-+-+-+-+-+-+-+-+-
icmpv6_radv="Type:8,Code:8,Checksum:16,Cur Hop Limit:8,M:1,O:1,Reserved:6,\
Router Lifetime:16,Reachable Time:32,Retransmission Timer:32,Options:64"
# ICMPv6 Neighbor Solicitation Message Format
#
# 0 1 2 3
# 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Type | Code | Checksum |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Reserved |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | |
# + +
# | |
# + Target Address +
# | |
# + +
# | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Options ...
# +-+-+-+-+-+-+-+-+-+-+-+-
icmpv6_nsol="Type:8,Code:8,Checksum:16,Reserved:32,Target Address:128,\
Options:64"
# ICMPv6 Neighbor Advertisement Message Format
#
# 0 1 2 3
# 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Type | Code | Checksum |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# |R|S|O| Reserved |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | |
# + +
# | |
# + Target Address +
# | |
# + +
# | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Options ...
# +-+-+-+-+-+-+-+-+-+-+-+-
icmpv6_nadv="Type:8,Code:8,Checksum:16,R:1,S:1,O:1,Reserved:29,Target\
Address:128,Options:64"
# ICMPv6 Redirect Message Format
#
# 0 1 2 3
# 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Type | Code | Checksum |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Reserved |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | |
# + +
# | |
# + Target Address +
# | |
# + +
# | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | |
# + +
# | |
# + Destination Address +
# | |
# + +
# | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Options ...
# +-+-+-+-+-+-+-+-+-+-+-+-
icmpv6_redirect="Type:8,Code:8,Checksum:16,Reserved:32,Target Address:128,\
Destination Address:128,Options:64"
# 0 1
# 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
# *-------------------------------*
# | Field4| Field4| Field8 |
# *-------------------------------*
# | Field16 |
# *-------------------------------*
# | |
# * Field32 *
# | |
# *-------------------------------*
# | |
# * *
# | |
# * Field64 *
# | |
# * *
# | |
# *-------------------------------*
example="Field4:4,Field4:4,Field8:8,Field16:16,Field32:32,Field64:64?bits=16,\
numbers=y,startchar=*,endchar=*,evenchar=-,oddchar=-,sepchar=|"
# 0 1 2 3
# 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# |F|Field_4| Field_7 | Field_10 | Field_13 |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | | Field_16 | Field_19 |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | | Field_22 | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Field_25 | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Field_28 | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Field_31 | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Field_34 | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+
# | Field_37 | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+
# | Field_40 | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +
# | Field_43 |
# + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | | |
# +-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+
# | Field_46 | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +
# | Field_49 |
# + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | | |
# +-+-+-+-+-+-+-+-+-+ +-+-+-+
# | Field_52 | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +
# | Field_55 |
# + +-+-+-+-+-+-+-+-+-+-+-+-+
# | | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +
# | Field_58 |
# + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +
# | Field_61 |
# + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | | |
# +-+-+-+-+-+-+-+-+-+-+-+ +
# | Field_64 |
# + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | | |
# +-+-+-+-+-+-+-+-+-+-+-+ +
# | Field_67 |
# + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +
# | Field_70 |
# + +-+-+-+-+-+-+-+-+-+-+-+-+
# | | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +
# | Field_73 |
# + +-+-+-+
# | | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +
# | |
# + +
# | Field_76 |
# + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | | |
# +-+-+-+-+-+-+-+-+-+ +
# | Field_79 |
# + +-+-+-+-+-+-+-+-+
# | | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +
# | |
# + +
# | Field_82 |
# + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | | |
# +-+-+-+-+-+-+-+-+-+-+ +
# | Field_85 |
# + +-+
# | | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +
# | |
# + +
# | Field_88 |
# + +-+-+-+-+-+-+-+-+-+
# | | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +
# | |
# + +
# | Field_91 |
# + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +
# | |
# + +
# | Field_94 |
# + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +
# | |
# + +
# | Field_97 |
# + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +
# | |
# + +
# | Field_100 |
# + +-+-+-+-+-+-+-+-+-+-+-+
# | | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +
# | |
# + +
# | Field_103 |
# + +-+-+-+-+
# | | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +
# | |
# + +
# | |
# + +
# | Field_106 |
# + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | | |
# +-+-+-+-+-+-+ +
# | |
# + +
# | Field_109 |
# + +-+-+-+-+-+-+-+-+-+-+-+-+-+
# | | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +
# | |
# + +
# | |
# + +
# | Field_112 |
# + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | | |
# +-+-+-+ +
# | |
# + +
# | Field_115 |
# + +-+-+-+-+-+-+-+-+-+-+
# | | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +
# | |
# + +
# | |
# + +
# | Field_118 |
# + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | | |
# +-+-+-+-+-+-+-+-+-+-+-+-+ +
# | |
# + +
# | |
# + +
# | Field_121 |
# + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | | |
# +-+-+-+-+-+ +
# | |
# + +
# | |
# + +
# | Field_124 |
# + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | | |
# +-+ +
# | |
# + +
# | Field_127 |
# + +
# | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
test="Field_1:1,Field_4:4,Field_7:7,Field_10:10,Field_13:13,Field_16:16,\
Field_19:19,Field_22:22,Field_25:25,Field_28:28,Field_31:31,Field_34:34,\
Field_37:37,Field_40:40,Field_43:43,Field_46:46,Field_49:49,Field_52:52,\
Field_55:55,Field_58:58,Field_61:61,Field_64:64,Field_67:67,Field_70:70,\
Field_73:73,Field_76:76,Field_79:79,Field_82:82,Field_85:85,Field_88:88,\
Field_91:91,Field_94:94,Field_97:97,Field_100:100,Field_103:103,Field_106:106,\
Field_109:109,Field_112:112,Field_115:115,Field_118:118,Field_121:121,\
Field_124:124,Field_127:127"
# Dictionary of specs
protocols={"ethernet":ethernet,
"8021q":dot1q,
"dot1q":dot1q,
"tcp":tcp,
"udp":udp,
"ip":ip,
"ipv6":ipv6,
"icmp":icmp,
"icmp-destination":icmp_destination,
"icmp-time":icmp_time,
"icmp-parameter":icmp_parameter,
"icmp-source":icmp_source,
"icmp-redirect":icmp_redirect,
"icmp-echo":icmp_echo,
"icmp-timestamp":icmp_timestamp,
"icmp-information":icmp_information,
"icmpv6":icmpv6,
"icmpv6-destination":icmpv6_destination,
"icmpv6-big":icmpv6_big,
"icmpv6-time":icmpv6_time,
"icmpv6-parameter":icmpv6_parameter,
"icmpv6-echo":icmpv6_echo,
"icmpv6-rsol":icmpv6_rsol,
"icmpv6-radv":icmpv6_radv,
"icmpv6-nsol":icmpv6_nsol,
"icmpv6-nadv":icmpv6_nadv,
"icmpv6-redirect":icmpv6_redirect,
"example":example,
"test":test
}

321
test.py Executable file
View File

@ -0,0 +1,321 @@
#!/usr/bin/python
################################################################################
# ____ _ _ #
# | _ \ _ __ ___ | |_ ___ ___ ___ | | #
# | |_) | '__/ _ \| __/ _ \ / __/ _ \| | #
# | __/| | | (_) | || (_) | (_| (_) | | #
# |_| |_| \___/ \__\___/ \___\___/|_| #
# #
# == A Simple ASCII Header Generator for Network Protocols == #
# #
################################################################################
# #
# Written by: #
# #
# Luis MartinGarcia. #
# -> E-Mail: luis.mgarc@gmail.com #
# -> WWWW: http://www.luismg.com #
# -> GitHub: https://github.com/luismartingarcia #
# #
################################################################################
# #
# This file is part of Protocol. #
# #
# Copyright (C) 2014 Luis MartinGarcia (luis.mgarc@gmail.com) #
# #
# This program is free software: you can redistribute it and/or modify #
# it under the terms of the GNU General Public License as published by #
# the Free Software Foundation, either version 3 of the License, or #
# (at your option) any later version. #
# #
# This program is distributed in the hope that it will be useful, #
# but WITHOUT ANY WARRANTY; without even the implied warranty of #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
# GNU General Public License for more details. #
# #
# You should have received a copy of the GNU General Public License #
# along with this program. If not, see <http://www.gnu.org/licenses/>. #
# #
# Please check file LICENSE.txt for the complete version of the license, #
# as this disclaimer does not contain the full information. Also, note #
# that although Protocol is licensed under the GNU GPL v3 license, it may #
# be possible to obtain copies of it under different, less restrictive, #
# alternative licenses. Requests will be studied on a case by case basis. #
# If you wish to obtain Protocol under a different license, please contact #
# the email address mentioned above. #
# #
################################################################################
# #
# Description: #
# #
# Unit tests for the "protocol" tool #
# #
################################################################################
# STANDARD LIBRARY IMPORTS
import imp
import unittest
# IMPORT PROTOCOL (need to use the imp library since "protocol" does not
# have a .py extension
protocol = imp.load_source("protocol", "protocol")
# List of test cases. It contains tuples of the form (protocol_spec, expected_output)
validcases=[
("Field_32:32",
""" 0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Field_32 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+"""),
("Field_8:8,Field_8:8,Field_8:8,Field_8:8?numbers=0",
"""+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Field_8 | Field_8 | Field_8 | Field_8 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+"""),
("Field_32:32?numbers=0",
"""+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Field_32 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+"""),
("Field_16:16,Field_16:16?numbers=0",
"""+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Field_16 | Field_16 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+"""),
("Field_16:16,Field_8:8,Field_8:8?numbers=0",
"""+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Field_16 | Field_8 | Field_8 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+"""),
("Field_32:32,Field_32:32?numbers=0",
"""+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Field_32 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Field_32 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+"""),
("Field_32:32,Field_16:16?numbers=0",
"""+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Field_32 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Field_16 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+"""),
("Field_32:32,Field_24:24?numbers=0",
"""+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Field_32 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Field_24 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+"""),
("Field_32:32,Field_31:31?numbers=0",
"""+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Field_32 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Field_31 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+"""),
("Field_32:32,Field_33:33?numbers=0",
"""+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Field_32 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Field_33 |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
+-+"""),
("Field_32:32,Field_39:39?numbers=0",
"""+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Field_32 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Field_39 |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
+-+-+-+-+-+-+-+"""),
("Field_32:32,Field_56:56?numbers=0",
"""+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Field_32 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Field_56 |
+ +-+-+-+-+-+-+-+-+
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+"""),
("Field_32:32,Field_16:16,Field_33:33?numbers=0",
"""+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Field_32 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Field_16 | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Field_33 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+"""),
("Field_32:32,Field_16:16,Field_56:56?numbers=0",
"""+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Field_32 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Field_16 | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +
| Field_56 |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
+-+-+-+-+-+-+-+-+"""),
("Field_32:32,Field_16:16,Field_32:32?numbers=0",
"""+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Field_32 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Field_16 | Field_32 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+"""),
("Field_8:8,Field_8:8,Field_8:8,Field_8:8,Field_12:12,Field_17:17,Field_22:22,Field_8:8,Field_5:5?numbers=0",
"""+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Field_8 | Field_8 | Field_8 | Field_8 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Field_12 | Field_17 | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Field_22 | Field_8 | Field_5 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+"""),
("Field_16:16,Field_8:8,Field_8:8?numbers=0,bits=16",
"""+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Field_16 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Field_8 | Field_8 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+"""),
("Field_16:16,Field_32:32?numbers=0,bits=16",
"""+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Field_16 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
+ Field_32 +
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+"""),
("Field_64:64?numbers=0,bits=16",
"""+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
+ +
| |
+ Field_64 +
| |
+ +
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+"""),
("Field_64:64?bits=64",
""" 0 1 2 3 4 5 6
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Field_64 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+"""),
("Source Port:16,Destination Port:16,Sequence Number:32,\
Acknowledgment Number:32,Offset:4,Res.:4,Flags:8,Window:16,Checksum:16,\
Urgent Pointer:16,Options:24,Padding:8",
""" 0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Source Port | Destination Port |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Sequence Number |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Acknowledgment Number |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Offset| Res. | Flags | Window |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Checksum | Urgent Pointer |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Options | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+"""),
("Field_32:32?numbers=0,startchar=1,endchar=2,oddchar=3,evenchar=4,sepchar=5",
"""14343434343434343434343434343434343434343434343434343434343434342
5 Field_32 5
14343434343434343434343434343434343434343434343434343434343434342"""),
]
# List of invalid test cases. It contains incorrect protocol specs.
invalidcases=[
"Field_64:64?bits=",
"Field_64:64?bits=A",
"Field_64:64?bits=0",
"Field_64:64?bits=-1",
"Field_64:0",
"Field_64:-1",
"Field_8:8,Field_8:0",
"Field_32:32?numbers=X",
"Field_32:32?numbers=",
"Field_32:32?startchar",
"Field_32:32?startchar=",
"Field_32:32?startchar=AAA",
"Field_32:32?endchar",
"Field_32:32?endchar=",
"Field_32:32?endchar=AAA",
"Field_32:32?oddchar",
"Field_32:32?oddchar=",
"Field_32:32?oddchar=AAA",
"Field_32:32?evenchar",
"Field_32:32?evenchar=",
"Field_32:32?evenchar=AAA",
"Field_32:32?sepchar",
"Field_32:32?sepchar=",
"Field_32:32?sepchar=AAA",
"Field_32:32?unknown",
"Field_32:32?",
"Field_32:32FieldThatContains?Sign",
"Field_32:32?sepchar=A,",
"Field_32:32,Field_8?sepchar=A,",
"Field_32:32,Field_8:?sepchar=A,",
"Field_32:32,Field_8:12,?sepchar=A,"
]
class ProtocolTests(unittest.TestCase):
def test_regular_specs(self):
"""
This function tests correctness for a number of known specs. It
instances a Protocol() passing a particular expect and then it compares
the str() of the instance with the expected ASCII protocol header.
"""
for i in range(0, len(validcases)):
print("Testing Valid Spec '%s'" % validcases[i][0])
p = protocol.Protocol(validcases[i][0])
self.assertEqual(str(p), validcases[i][1])
def test_invalid_specs(self):
"""
This function tests the Protocol class for input validation. A number of
invalid specs are passed. The constructor of the class is expected to raise
the appropriate exceptions.
"""
for i in range(0, len(invalidcases)):
print("Testing Invalid Spec '%s'" % invalidcases[i])
self.assertRaises(protocol.ProtocolException, protocol.Protocol, invalidcases[i])
if __name__ == '__main__':
# Print our fancy ASCII header
print("#########################################################################")
print("# ____ _ _ #")
print("# | _ \ _ __ ___ | |_ ___ ___ ___ | | #")
print("# | |_) | '__/ _ \| __/ _ \ / __/ _ \| | #")
print("# | __/| | | (_) | || (_) | (_| (_) | | #")
print("# |_| |_| \___/ \__\___/ \___\___/|_| #")
print("# #")
print('# == "Protocol" Test Suite == #')
print("# #") #
print("#########################################################################")
# Run the actual tests
unittest.main()