├── AUTHORS.txt
├── CMakeLists.txt
├── DNS
    ├── dns1.py
    ├── dns2.py
    └── dns3.py
├── LICENSE
├── Makefile
├── README.md
├── _config.yml
├── click
    ├── Makefile
    ├── ids.click
    ├── lb.click
    ├── lb1.click
    ├── lb2.click
    └── n9.click
├── firewall
    ├── Makefile
    ├── firewall_parent_proactive.py
    ├── l2_firewall.py
    ├── l2_firewall_example.py
    └── l2_learning.py
├── ik2220-assign-phase2-team5.tar.gz
├── shrinish.txt
├── src
    ├── dns_server.py
    ├── dnsrequest.py
    └── icmp_match_struct.py
├── sublime.gitignore
├── topology
    ├── MakeFile
    ├── phase2.py
    ├── topology_log.py
    └── topology_new.py
└── zones.tar.gz


/AUTHORS.txt:
--------------------------------------------------------------------------------
1 | *Vinayak Tejankar  tejankar@kth.se
2 | Abhishek Dandekar dandekar@kth.se
3 | Shrinish Donde    shrinish@kth.se
4 | Faizan Ahmed      faizana@kth.se
5 | 


--------------------------------------------------------------------------------
/CMakeLists.txt:
--------------------------------------------------------------------------------
 1 | #application
 2 | 
 3 | export POX_PATH := /opt/ik2220/pox
 4 | export APP_PATH := ik2220
 5 | app:
 6 | 	#mkdir $$POX_PATH/ext/$$APP_PATH
 7 | 	#python -m compileall ./sdn/task1/
 8 | 	cp sdn/task1/* $$POX_PATH/ext/
 9 | 	python -m compileall $$POX_PATH/ext/
10 | 	sudo python $$POX_PATH/pox.py l2_firewall &
11 | 	#sudo python $$POX_PATH/pox.py $$APP_PATH.l2_firewall
12 | 
13 | clean:
14 | 	sudo pkill -9 -f pox.py
15 |   
16 | #topology
17 |   
18 | topo:
19 | 	sudo python phase1.py
20 | 
21 | clean:
22 | 	sudo mn -c
23 | 


--------------------------------------------------------------------------------
/DNS/dns1.py:
--------------------------------------------------------------------------------
  1 | import socket, glob, json
  2 | 
  3 | port = 53
  4 | ip = '100.0.0.20'
  5 | 
  6 | sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
  7 | sock.bind((ip, port))
  8 | 
  9 | 
 10 | def load_zones():
 11 | 
 12 |     jsonzone = {}
 13 |     zonefiles = glob.glob('zones/*.zone')
 14 | 
 15 |     for zone in zonefiles:
 16 |         with open(zone) as zonedata:
 17 |             data = json.load(zonedata)
 18 |             zonename = data["$origin"]
 19 |             jsonzone[zonename] = data
 20 |     return jsonzone
 21 | 
 22 | zonedata = load_zones()
 23 | 
 24 | def getflags(flags):
 25 | 
 26 |     byte1 = bytes(flags[:1])
 27 |     byte2 = bytes(flags[1:2])
 28 | 
 29 |     rflags = ''
 30 | 
 31 |     QR = '1'
 32 | 
 33 |     OPCODE = ''
 34 |     for bit in range(1,5):
 35 |         OPCODE += str(ord(byte1)&(1<<bit))
 36 | 
 37 |     AA = '1'
 38 | 
 39 |     TC = '0'
 40 | 
 41 |     RD = '0'
 42 | 
 43 |     # Byte 2
 44 | 
 45 |     RA = '0'
 46 | 
 47 |     Z = '000'
 48 | 
 49 |     RCODE = '0000'
 50 | 
 51 |     return int(QR+OPCODE+AA+TC+RD, 2).to_bytes(1, byteorder='big')+int(RA+Z+RCODE, 2).to_bytes(1, byteorder='big')
 52 | 
 53 | def getquestiondomain(data):
 54 | 
 55 |     state = 0
 56 |     expectedlength = 0
 57 |     domainstring = ''
 58 |     domainparts = []
 59 |     x = 0
 60 |     y = 0
 61 |     for byte in data:
 62 |         if state == 1:
 63 |             if byte != 0:
 64 |                 domainstring += chr(byte)
 65 |             x += 1
 66 |             if x == expectedlength:
 67 |                 domainparts.append(domainstring)
 68 |                 domainstring = ''
 69 |                 state = 0
 70 |                 x = 0
 71 |             if byte == 0:
 72 |                 domainparts.append(domainstring)
 73 |                 break
 74 |         else:
 75 |             state = 1
 76 |             expectedlength = byte
 77 |         y += 1
 78 | 
 79 |     questiontype = data[y:y+2]
 80 | 
 81 |     return (domainparts, questiontype)
 82 | 
 83 | def getzone(domain):
 84 |     global zonedata
 85 | 
 86 |     zone_name = '.'.join(domain)
 87 |     
 88 |     return zonedata[zone_name]
 89 | 
 90 | 
 91 | def getrecs(data):
 92 |     domain, questiontype = getquestiondomain(data)
 93 |     qt = ''
 94 |     if questiontype == b'\x00\x01':
 95 |         qt = 'a'
 96 | 
 97 |     zone = getzone(domain)
 98 | 
 99 |     return (zone[qt], qt, domain)
100 | 
101 | def buildquestion(domainname, rectype):
102 |     qbytes = b''
103 | 
104 |     for part in domainname:
105 |         length = len(part)
106 |         qbytes += bytes([length])
107 | 
108 |         for char in part:
109 |             qbytes += ord(char).to_bytes(1, byteorder='big')
110 | 
111 |     if rectype == 'a':
112 |         qbytes += (1).to_bytes(2, byteorder='big')
113 | 
114 |     qbytes += (1).to_bytes(2, byteorder='big')
115 | 
116 |     return qbytes
117 | 
118 | def rectobytes(domainname, rectype, recttl, recval):
119 | 
120 |     rbytes = b'\xc0\x0c'
121 | 
122 |     if rectype == 'a':
123 |         rbytes = rbytes + bytes([0]) + bytes([1])
124 | 
125 |     rbytes = rbytes + bytes([0]) + bytes([1])
126 | 
127 |     rbytes += int(recttl).to_bytes(4, byteorder='big')
128 | 
129 |     if rectype == 'a':
130 |         rbytes = rbytes + bytes([0]) + bytes([4])
131 | 
132 |         for part in recval.split('.'):
133 |             rbytes += bytes([int(part)])
134 |     return rbytes
135 | 
136 | def buildresponse(data):
137 | 
138 |     # Transaction ID
139 |     TransactionID = data[:2]
140 | 
141 |     # Get the flags
142 |     Flags = getflags(data[2:4])
143 | 
144 |     # Question Count
145 |     QDCOUNT = b'\x00\x01'
146 | 
147 |     # Answer Count
148 |     ANCOUNT = len(getrecs(data[12:])[0]).to_bytes(2, byteorder='big')
149 | 
150 |     # Nameserver Count
151 |     NSCOUNT = (0).to_bytes(2, byteorder='big')
152 | 
153 |     # Additonal Count
154 |     ARCOUNT = (0).to_bytes(2, byteorder='big')
155 | 
156 |     dnsheader = TransactionID+Flags+QDCOUNT+ANCOUNT+NSCOUNT+ARCOUNT
157 | 
158 |     # Create DNS body
159 |     dnsbody = b''
160 | 
161 |     # Get answer for query
162 |     records, rectype, domainname = getrecs(data[12:])
163 | 
164 |     dnsquestion = buildquestion(domainname, rectype)
165 |     
166 | 
167 |     
168 |     for record in records:
169 |         dnsbody += rectobytes(domainname, rectype, record["ttl"], record["value"])
170 | 
171 |     
172 |     return dnsheader + dnsquestion + dnsbody
173 | 
174 | 
175 | while 1:
176 |     data, addr = sock.recvfrom(512)
177 |     r = buildresponse(data)
178 | 
179 |     sock.sendto(r, addr)
180 | 	
181 | 


--------------------------------------------------------------------------------
/DNS/dns2.py:
--------------------------------------------------------------------------------
  1 | import socket, glob, json
  2 | 
  3 | port = 53
  4 | ip = '100.0.0.21'
  5 | 
  6 | sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
  7 | sock.bind((ip, port))
  8 | 
  9 | 
 10 | def load_zones():
 11 | 
 12 |     jsonzone = {}
 13 |     zonefiles = glob.glob('zones/*.zone')
 14 | 
 15 |     for zone in zonefiles:
 16 |         with open(zone) as zonedata:
 17 |             data = json.load(zonedata)
 18 |             zonename = data["$origin"]
 19 |             jsonzone[zonename] = data
 20 |     return jsonzone
 21 | 
 22 | zonedata = load_zones()
 23 | 
 24 | def getflags(flags):
 25 | 
 26 |     byte1 = bytes(flags[:1])
 27 |     byte2 = bytes(flags[1:2])
 28 | 
 29 |     rflags = ''
 30 | 
 31 |     QR = '1'
 32 | 
 33 |     OPCODE = ''
 34 |     for bit in range(1,5):
 35 |         OPCODE += str(ord(byte1)&(1<<bit))
 36 | 
 37 |     AA = '1'
 38 | 
 39 |     TC = '0'
 40 | 
 41 |     RD = '0'
 42 | 
 43 |     # Byte 2
 44 | 
 45 |     RA = '0'
 46 | 
 47 |     Z = '000'
 48 | 
 49 |     RCODE = '0000'
 50 | 
 51 |     return int(QR+OPCODE+AA+TC+RD, 2).to_bytes(1, byteorder='big')+int(RA+Z+RCODE, 2).to_bytes(1, byteorder='big')
 52 | 
 53 | def getquestiondomain(data):
 54 | 
 55 |     state = 0
 56 |     expectedlength = 0
 57 |     domainstring = ''
 58 |     domainparts = []
 59 |     x = 0
 60 |     y = 0
 61 |     for byte in data:
 62 |         if state == 1:
 63 |             if byte != 0:
 64 |                 domainstring += chr(byte)
 65 |             x += 1
 66 |             if x == expectedlength:
 67 |                 domainparts.append(domainstring)
 68 |                 domainstring = ''
 69 |                 state = 0
 70 |                 x = 0
 71 |             if byte == 0:
 72 |                 domainparts.append(domainstring)
 73 |                 break
 74 |         else:
 75 |             state = 1
 76 |             expectedlength = byte
 77 |         y += 1
 78 | 
 79 |     questiontype = data[y:y+2]
 80 | 
 81 |     return (domainparts, questiontype)
 82 | 
 83 | def getzone(domain):
 84 |     global zonedata
 85 | 
 86 |     zone_name = '.'.join(domain)
 87 |     
 88 |     return zonedata[zone_name]
 89 | 
 90 | 
 91 | def getrecs(data):
 92 |     domain, questiontype = getquestiondomain(data)
 93 |     qt = ''
 94 |     if questiontype == b'\x00\x01':
 95 |         qt = 'a'
 96 | 
 97 |     zone = getzone(domain)
 98 | 
 99 |     return (zone[qt], qt, domain)
100 | 
101 | def buildquestion(domainname, rectype):
102 |     qbytes = b''
103 | 
104 |     for part in domainname:
105 |         length = len(part)
106 |         qbytes += bytes([length])
107 | 
108 |         for char in part:
109 |             qbytes += ord(char).to_bytes(1, byteorder='big')
110 | 
111 |     if rectype == 'a':
112 |         qbytes += (1).to_bytes(2, byteorder='big')
113 | 
114 |     qbytes += (1).to_bytes(2, byteorder='big')
115 | 
116 |     return qbytes
117 | 
118 | def rectobytes(domainname, rectype, recttl, recval):
119 | 
120 |     rbytes = b'\xc0\x0c'
121 | 
122 |     if rectype == 'a':
123 |         rbytes = rbytes + bytes([0]) + bytes([1])
124 | 
125 |     rbytes = rbytes + bytes([0]) + bytes([1])
126 | 
127 |     rbytes += int(recttl).to_bytes(4, byteorder='big')
128 | 
129 |     if rectype == 'a':
130 |         rbytes = rbytes + bytes([0]) + bytes([4])
131 | 
132 |         for part in recval.split('.'):
133 |             rbytes += bytes([int(part)])
134 |     return rbytes
135 | 
136 | def buildresponse(data):
137 | 
138 |     # Transaction ID
139 |     TransactionID = data[:2]
140 | 
141 |     # Get the flags
142 |     Flags = getflags(data[2:4])
143 | 
144 |     # Question Count
145 |     QDCOUNT = b'\x00\x01'
146 | 
147 |     # Answer Count
148 |     ANCOUNT = len(getrecs(data[12:])[0]).to_bytes(2, byteorder='big')
149 | 
150 |     # Nameserver Count
151 |     NSCOUNT = (0).to_bytes(2, byteorder='big')
152 | 
153 |     # Additonal Count
154 |     ARCOUNT = (0).to_bytes(2, byteorder='big')
155 | 
156 |     dnsheader = TransactionID+Flags+QDCOUNT+ANCOUNT+NSCOUNT+ARCOUNT
157 | 
158 |     # Create DNS body
159 |     dnsbody = b''
160 | 
161 |     # Get answer for query
162 |     records, rectype, domainname = getrecs(data[12:])
163 | 
164 |     dnsquestion = buildquestion(domainname, rectype)
165 |     
166 | 
167 |     
168 |     for record in records:
169 |         dnsbody += rectobytes(domainname, rectype, record["ttl"], record["value"])
170 | 
171 |     
172 |     return dnsheader + dnsquestion + dnsbody
173 | 
174 | 
175 | while 1:
176 |     data, addr = sock.recvfrom(512)
177 |     r = buildresponse(data)
178 | 
179 |     sock.sendto(r, addr)
180 | 	
181 | 


--------------------------------------------------------------------------------
/DNS/dns3.py:
--------------------------------------------------------------------------------
  1 | import socket, glob, json
  2 | 
  3 | port = 53
  4 | ip = '100.0.0.22'
  5 | 
  6 | sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
  7 | sock.bind((ip, port))
  8 | 
  9 | 
 10 | def load_zones():
 11 | 
 12 |     jsonzone = {}
 13 |     zonefiles = glob.glob('zones/*.zone')
 14 | 
 15 |     for zone in zonefiles:
 16 |         with open(zone) as zonedata:
 17 |             data = json.load(zonedata)
 18 |             zonename = data["$origin"]
 19 |             jsonzone[zonename] = data
 20 |     return jsonzone
 21 | 
 22 | zonedata = load_zones()
 23 | 
 24 | def getflags(flags):
 25 | 
 26 |     byte1 = bytes(flags[:1])
 27 |     byte2 = bytes(flags[1:2])
 28 | 
 29 |     rflags = ''
 30 | 
 31 |     QR = '1'
 32 | 
 33 |     OPCODE = ''
 34 |     for bit in range(1,5):
 35 |         OPCODE += str(ord(byte1)&(1<<bit))
 36 | 
 37 |     AA = '1'
 38 | 
 39 |     TC = '0'
 40 | 
 41 |     RD = '0'
 42 | 
 43 |     # Byte 2
 44 | 
 45 |     RA = '0'
 46 | 
 47 |     Z = '000'
 48 | 
 49 |     RCODE = '0000'
 50 | 
 51 |     return int(QR+OPCODE+AA+TC+RD, 2).to_bytes(1, byteorder='big')+int(RA+Z+RCODE, 2).to_bytes(1, byteorder='big')
 52 | 
 53 | def getquestiondomain(data):
 54 | 
 55 |     state = 0
 56 |     expectedlength = 0
 57 |     domainstring = ''
 58 |     domainparts = []
 59 |     x = 0
 60 |     y = 0
 61 |     for byte in data:
 62 |         if state == 1:
 63 |             if byte != 0:
 64 |                 domainstring += chr(byte)
 65 |             x += 1
 66 |             if x == expectedlength:
 67 |                 domainparts.append(domainstring)
 68 |                 domainstring = ''
 69 |                 state = 0
 70 |                 x = 0
 71 |             if byte == 0:
 72 |                 domainparts.append(domainstring)
 73 |                 break
 74 |         else:
 75 |             state = 1
 76 |             expectedlength = byte
 77 |         y += 1
 78 | 
 79 |     questiontype = data[y:y+2]
 80 | 
 81 |     return (domainparts, questiontype)
 82 | 
 83 | def getzone(domain):
 84 |     global zonedata
 85 | 
 86 |     zone_name = '.'.join(domain)
 87 |     
 88 |     return zonedata[zone_name]
 89 | 
 90 | 
 91 | def getrecs(data):
 92 |     domain, questiontype = getquestiondomain(data)
 93 |     qt = ''
 94 |     if questiontype == b'\x00\x01':
 95 |         qt = 'a'
 96 | 
 97 |     zone = getzone(domain)
 98 | 
 99 |     return (zone[qt], qt, domain)
100 | 
101 | def buildquestion(domainname, rectype):
102 |     qbytes = b''
103 | 
104 |     for part in domainname:
105 |         length = len(part)
106 |         qbytes += bytes([length])
107 | 
108 |         for char in part:
109 |             qbytes += ord(char).to_bytes(1, byteorder='big')
110 | 
111 |     if rectype == 'a':
112 |         qbytes += (1).to_bytes(2, byteorder='big')
113 | 
114 |     qbytes += (1).to_bytes(2, byteorder='big')
115 | 
116 |     return qbytes
117 | 
118 | def rectobytes(domainname, rectype, recttl, recval):
119 | 
120 |     rbytes = b'\xc0\x0c'
121 | 
122 |     if rectype == 'a':
123 |         rbytes = rbytes + bytes([0]) + bytes([1])
124 | 
125 |     rbytes = rbytes + bytes([0]) + bytes([1])
126 | 
127 |     rbytes += int(recttl).to_bytes(4, byteorder='big')
128 | 
129 |     if rectype == 'a':
130 |         rbytes = rbytes + bytes([0]) + bytes([4])
131 | 
132 |         for part in recval.split('.'):
133 |             rbytes += bytes([int(part)])
134 |     return rbytes
135 | 
136 | def buildresponse(data):
137 | 
138 |     # Transaction ID
139 |     TransactionID = data[:2]
140 | 
141 |     # Get the flags
142 |     Flags = getflags(data[2:4])
143 | 
144 |     # Question Count
145 |     QDCOUNT = b'\x00\x01'
146 | 
147 |     # Answer Count
148 |     ANCOUNT = len(getrecs(data[12:])[0]).to_bytes(2, byteorder='big')
149 | 
150 |     # Nameserver Count
151 |     NSCOUNT = (0).to_bytes(2, byteorder='big')
152 | 
153 |     # Additonal Count
154 |     ARCOUNT = (0).to_bytes(2, byteorder='big')
155 | 
156 |     dnsheader = TransactionID+Flags+QDCOUNT+ANCOUNT+NSCOUNT+ARCOUNT
157 | 
158 |     # Create DNS body
159 |     dnsbody = b''
160 | 
161 |     # Get answer for query
162 |     records, rectype, domainname = getrecs(data[12:])
163 | 
164 |     dnsquestion = buildquestion(domainname, rectype)
165 |     
166 | 
167 |     
168 |     for record in records:
169 |         dnsbody += rectobytes(domainname, rectype, record["ttl"], record["value"])
170 | 
171 |     
172 |     return dnsheader + dnsquestion + dnsbody
173 | 
174 | 
175 | while 1:
176 |     data, addr = sock.recvfrom(512)
177 |     r = buildresponse(data)
178 | 
179 |     sock.sendto(r, addr)
180 | 	
181 | 


--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
  1 |                     GNU AFFERO GENERAL PUBLIC LICENSE
  2 |                        Version 3, 19 November 2007
  3 | 
  4 |  Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
  5 |  Everyone is permitted to copy and distribute verbatim copies
  6 |  of this license document, but changing it is not allowed.
  7 | 
  8 |                             Preamble
  9 | 
 10 |   The GNU Affero General Public License is a free, copyleft license for
 11 | software and other kinds of works, specifically designed to ensure
 12 | cooperation with the community in the case of network server software.
 13 | 
 14 |   The licenses for most software and other practical works are designed
 15 | to take away your freedom to share and change the works.  By contrast,
 16 | our General Public Licenses are intended to guarantee your freedom to
 17 | share and change all versions of a program--to make sure it remains free
 18 | software for all its users.
 19 | 
 20 |   When we speak of free software, we are referring to freedom, not
 21 | price.  Our General Public Licenses are designed to make sure that you
 22 | have the freedom to distribute copies of free software (and charge for
 23 | them if you wish), that you receive source code or can get it if you
 24 | want it, that you can change the software or use pieces of it in new
 25 | free programs, and that you know you can do these things.
 26 | 
 27 |   Developers that use our General Public Licenses protect your rights
 28 | with two steps: (1) assert copyright on the software, and (2) offer
 29 | you this License which gives you legal permission to copy, distribute
 30 | and/or modify the software.
 31 | 
 32 |   A secondary benefit of defending all users' freedom is that
 33 | improvements made in alternate versions of the program, if they
 34 | receive widespread use, become available for other developers to
 35 | incorporate.  Many developers of free software are heartened and
 36 | encouraged by the resulting cooperation.  However, in the case of
 37 | software used on network servers, this result may fail to come about.
 38 | The GNU General Public License permits making a modified version and
 39 | letting the public access it on a server without ever releasing its
 40 | source code to the public.
 41 | 
 42 |   The GNU Affero General Public License is designed specifically to
 43 | ensure that, in such cases, the modified source code becomes available
 44 | to the community.  It requires the operator of a network server to
 45 | provide the source code of the modified version running there to the
 46 | users of that server.  Therefore, public use of a modified version, on
 47 | a publicly accessible server, gives the public access to the source
 48 | code of the modified version.
 49 | 
 50 |   An older license, called the Affero General Public License and
 51 | published by Affero, was designed to accomplish similar goals.  This is
 52 | a different license, not a version of the Affero GPL, but Affero has
 53 | released a new version of the Affero GPL which permits relicensing under
 54 | this license.
 55 | 
 56 |   The precise terms and conditions for copying, distribution and
 57 | modification follow.
 58 | 
 59 |                        TERMS AND CONDITIONS
 60 | 
 61 |   0. Definitions.
 62 | 
 63 |   "This License" refers to version 3 of the GNU Affero General Public License.
 64 | 
 65 |   "Copyright" also means copyright-like laws that apply to other kinds of
 66 | works, such as semiconductor masks.
 67 | 
 68 |   "The Program" refers to any copyrightable work licensed under this
 69 | License.  Each licensee is addressed as "you".  "Licensees" and
 70 | "recipients" may be individuals or organizations.
 71 | 
 72 |   To "modify" a work means to copy from or adapt all or part of the work
 73 | in a fashion requiring copyright permission, other than the making of an
 74 | exact copy.  The resulting work is called a "modified version" of the
 75 | earlier work or a work "based on" the earlier work.
 76 | 
 77 |   A "covered work" means either the unmodified Program or a work based
 78 | on the Program.
 79 | 
 80 |   To "propagate" a work means to do anything with it that, without
 81 | permission, would make you directly or secondarily liable for
 82 | infringement under applicable copyright law, except executing it on a
 83 | computer or modifying a private copy.  Propagation includes copying,
 84 | distribution (with or without modification), making available to the
 85 | public, and in some countries other activities as well.
 86 | 
 87 |   To "convey" a work means any kind of propagation that enables other
 88 | parties to make or receive copies.  Mere interaction with a user through
 89 | a computer network, with no transfer of a copy, is not conveying.
 90 | 
 91 |   An interactive user interface displays "Appropriate Legal Notices"
 92 | to the extent that it includes a convenient and prominently visible
 93 | feature that (1) displays an appropriate copyright notice, and (2)
 94 | tells the user that there is no warranty for the work (except to the
 95 | extent that warranties are provided), that licensees may convey the
 96 | work under this License, and how to view a copy of this License.  If
 97 | the interface presents a list of user commands or options, such as a
 98 | menu, a prominent item in the list meets this criterion.
 99 | 
100 |   1. Source Code.
101 | 
102 |   The "source code" for a work means the preferred form of the work
103 | for making modifications to it.  "Object code" means any non-source
104 | form of a work.
105 | 
106 |   A "Standard Interface" means an interface that either is an official
107 | standard defined by a recognized standards body, or, in the case of
108 | interfaces specified for a particular programming language, one that
109 | is widely used among developers working in that language.
110 | 
111 |   The "System Libraries" of an executable work include anything, other
112 | than the work as a whole, that (a) is included in the normal form of
113 | packaging a Major Component, but which is not part of that Major
114 | Component, and (b) serves only to enable use of the work with that
115 | Major Component, or to implement a Standard Interface for which an
116 | implementation is available to the public in source code form.  A
117 | "Major Component", in this context, means a major essential component
118 | (kernel, window system, and so on) of the specific operating system
119 | (if any) on which the executable work runs, or a compiler used to
120 | produce the work, or an object code interpreter used to run it.
121 | 
122 |   The "Corresponding Source" for a work in object code form means all
123 | the source code needed to generate, install, and (for an executable
124 | work) run the object code and to modify the work, including scripts to
125 | control those activities.  However, it does not include the work's
126 | System Libraries, or general-purpose tools or generally available free
127 | programs which are used unmodified in performing those activities but
128 | which are not part of the work.  For example, Corresponding Source
129 | includes interface definition files associated with source files for
130 | the work, and the source code for shared libraries and dynamically
131 | linked subprograms that the work is specifically designed to require,
132 | such as by intimate data communication or control flow between those
133 | subprograms and other parts of the work.
134 | 
135 |   The Corresponding Source need not include anything that users
136 | can regenerate automatically from other parts of the Corresponding
137 | Source.
138 | 
139 |   The Corresponding Source for a work in source code form is that
140 | same work.
141 | 
142 |   2. Basic Permissions.
143 | 
144 |   All rights granted under this License are granted for the term of
145 | copyright on the Program, and are irrevocable provided the stated
146 | conditions are met.  This License explicitly affirms your unlimited
147 | permission to run the unmodified Program.  The output from running a
148 | covered work is covered by this License only if the output, given its
149 | content, constitutes a covered work.  This License acknowledges your
150 | rights of fair use or other equivalent, as provided by copyright law.
151 | 
152 |   You may make, run and propagate covered works that you do not
153 | convey, without conditions so long as your license otherwise remains
154 | in force.  You may convey covered works to others for the sole purpose
155 | of having them make modifications exclusively for you, or provide you
156 | with facilities for running those works, provided that you comply with
157 | the terms of this License in conveying all material for which you do
158 | not control copyright.  Those thus making or running the covered works
159 | for you must do so exclusively on your behalf, under your direction
160 | and control, on terms that prohibit them from making any copies of
161 | your copyrighted material outside their relationship with you.
162 | 
163 |   Conveying under any other circumstances is permitted solely under
164 | the conditions stated below.  Sublicensing is not allowed; section 10
165 | makes it unnecessary.
166 | 
167 |   3. Protecting Users' Legal Rights From Anti-Circumvention Law.
168 | 
169 |   No covered work shall be deemed part of an effective technological
170 | measure under any applicable law fulfilling obligations under article
171 | 11 of the WIPO copyright treaty adopted on 20 December 1996, or
172 | similar laws prohibiting or restricting circumvention of such
173 | measures.
174 | 
175 |   When you convey a covered work, you waive any legal power to forbid
176 | circumvention of technological measures to the extent such circumvention
177 | is effected by exercising rights under this License with respect to
178 | the covered work, and you disclaim any intention to limit operation or
179 | modification of the work as a means of enforcing, against the work's
180 | users, your or third parties' legal rights to forbid circumvention of
181 | technological measures.
182 | 
183 |   4. Conveying Verbatim Copies.
184 | 
185 |   You may convey verbatim copies of the Program's source code as you
186 | receive it, in any medium, provided that you conspicuously and
187 | appropriately publish on each copy an appropriate copyright notice;
188 | keep intact all notices stating that this License and any
189 | non-permissive terms added in accord with section 7 apply to the code;
190 | keep intact all notices of the absence of any warranty; and give all
191 | recipients a copy of this License along with the Program.
192 | 
193 |   You may charge any price or no price for each copy that you convey,
194 | and you may offer support or warranty protection for a fee.
195 | 
196 |   5. Conveying Modified Source Versions.
197 | 
198 |   You may convey a work based on the Program, or the modifications to
199 | produce it from the Program, in the form of source code under the
200 | terms of section 4, provided that you also meet all of these conditions:
201 | 
202 |     a) The work must carry prominent notices stating that you modified
203 |     it, and giving a relevant date.
204 | 
205 |     b) The work must carry prominent notices stating that it is
206 |     released under this License and any conditions added under section
207 |     7.  This requirement modifies the requirement in section 4 to
208 |     "keep intact all notices".
209 | 
210 |     c) You must license the entire work, as a whole, under this
211 |     License to anyone who comes into possession of a copy.  This
212 |     License will therefore apply, along with any applicable section 7
213 |     additional terms, to the whole of the work, and all its parts,
214 |     regardless of how they are packaged.  This License gives no
215 |     permission to license the work in any other way, but it does not
216 |     invalidate such permission if you have separately received it.
217 | 
218 |     d) If the work has interactive user interfaces, each must display
219 |     Appropriate Legal Notices; however, if the Program has interactive
220 |     interfaces that do not display Appropriate Legal Notices, your
221 |     work need not make them do so.
222 | 
223 |   A compilation of a covered work with other separate and independent
224 | works, which are not by their nature extensions of the covered work,
225 | and which are not combined with it such as to form a larger program,
226 | in or on a volume of a storage or distribution medium, is called an
227 | "aggregate" if the compilation and its resulting copyright are not
228 | used to limit the access or legal rights of the compilation's users
229 | beyond what the individual works permit.  Inclusion of a covered work
230 | in an aggregate does not cause this License to apply to the other
231 | parts of the aggregate.
232 | 
233 |   6. Conveying Non-Source Forms.
234 | 
235 |   You may convey a covered work in object code form under the terms
236 | of sections 4 and 5, provided that you also convey the
237 | machine-readable Corresponding Source under the terms of this License,
238 | in one of these ways:
239 | 
240 |     a) Convey the object code in, or embodied in, a physical product
241 |     (including a physical distribution medium), accompanied by the
242 |     Corresponding Source fixed on a durable physical medium
243 |     customarily used for software interchange.
244 | 
245 |     b) Convey the object code in, or embodied in, a physical product
246 |     (including a physical distribution medium), accompanied by a
247 |     written offer, valid for at least three years and valid for as
248 |     long as you offer spare parts or customer support for that product
249 |     model, to give anyone who possesses the object code either (1) a
250 |     copy of the Corresponding Source for all the software in the
251 |     product that is covered by this License, on a durable physical
252 |     medium customarily used for software interchange, for a price no
253 |     more than your reasonable cost of physically performing this
254 |     conveying of source, or (2) access to copy the
255 |     Corresponding Source from a network server at no charge.
256 | 
257 |     c) Convey individual copies of the object code with a copy of the
258 |     written offer to provide the Corresponding Source.  This
259 |     alternative is allowed only occasionally and noncommercially, and
260 |     only if you received the object code with such an offer, in accord
261 |     with subsection 6b.
262 | 
263 |     d) Convey the object code by offering access from a designated
264 |     place (gratis or for a charge), and offer equivalent access to the
265 |     Corresponding Source in the same way through the same place at no
266 |     further charge.  You need not require recipients to copy the
267 |     Corresponding Source along with the object code.  If the place to
268 |     copy the object code is a network server, the Corresponding Source
269 |     may be on a different server (operated by you or a third party)
270 |     that supports equivalent copying facilities, provided you maintain
271 |     clear directions next to the object code saying where to find the
272 |     Corresponding Source.  Regardless of what server hosts the
273 |     Corresponding Source, you remain obligated to ensure that it is
274 |     available for as long as needed to satisfy these requirements.
275 | 
276 |     e) Convey the object code using peer-to-peer transmission, provided
277 |     you inform other peers where the object code and Corresponding
278 |     Source of the work are being offered to the general public at no
279 |     charge under subsection 6d.
280 | 
281 |   A separable portion of the object code, whose source code is excluded
282 | from the Corresponding Source as a System Library, need not be
283 | included in conveying the object code work.
284 | 
285 |   A "User Product" is either (1) a "consumer product", which means any
286 | tangible personal property which is normally used for personal, family,
287 | or household purposes, or (2) anything designed or sold for incorporation
288 | into a dwelling.  In determining whether a product is a consumer product,
289 | doubtful cases shall be resolved in favor of coverage.  For a particular
290 | product received by a particular user, "normally used" refers to a
291 | typical or common use of that class of product, regardless of the status
292 | of the particular user or of the way in which the particular user
293 | actually uses, or expects or is expected to use, the product.  A product
294 | is a consumer product regardless of whether the product has substantial
295 | commercial, industrial or non-consumer uses, unless such uses represent
296 | the only significant mode of use of the product.
297 | 
298 |   "Installation Information" for a User Product means any methods,
299 | procedures, authorization keys, or other information required to install
300 | and execute modified versions of a covered work in that User Product from
301 | a modified version of its Corresponding Source.  The information must
302 | suffice to ensure that the continued functioning of the modified object
303 | code is in no case prevented or interfered with solely because
304 | modification has been made.
305 | 
306 |   If you convey an object code work under this section in, or with, or
307 | specifically for use in, a User Product, and the conveying occurs as
308 | part of a transaction in which the right of possession and use of the
309 | User Product is transferred to the recipient in perpetuity or for a
310 | fixed term (regardless of how the transaction is characterized), the
311 | Corresponding Source conveyed under this section must be accompanied
312 | by the Installation Information.  But this requirement does not apply
313 | if neither you nor any third party retains the ability to install
314 | modified object code on the User Product (for example, the work has
315 | been installed in ROM).
316 | 
317 |   The requirement to provide Installation Information does not include a
318 | requirement to continue to provide support service, warranty, or updates
319 | for a work that has been modified or installed by the recipient, or for
320 | the User Product in which it has been modified or installed.  Access to a
321 | network may be denied when the modification itself materially and
322 | adversely affects the operation of the network or violates the rules and
323 | protocols for communication across the network.
324 | 
325 |   Corresponding Source conveyed, and Installation Information provided,
326 | in accord with this section must be in a format that is publicly
327 | documented (and with an implementation available to the public in
328 | source code form), and must require no special password or key for
329 | unpacking, reading or copying.
330 | 
331 |   7. Additional Terms.
332 | 
333 |   "Additional permissions" are terms that supplement the terms of this
334 | License by making exceptions from one or more of its conditions.
335 | Additional permissions that are applicable to the entire Program shall
336 | be treated as though they were included in this License, to the extent
337 | that they are valid under applicable law.  If additional permissions
338 | apply only to part of the Program, that part may be used separately
339 | under those permissions, but the entire Program remains governed by
340 | this License without regard to the additional permissions.
341 | 
342 |   When you convey a copy of a covered work, you may at your option
343 | remove any additional permissions from that copy, or from any part of
344 | it.  (Additional permissions may be written to require their own
345 | removal in certain cases when you modify the work.)  You may place
346 | additional permissions on material, added by you to a covered work,
347 | for which you have or can give appropriate copyright permission.
348 | 
349 |   Notwithstanding any other provision of this License, for material you
350 | add to a covered work, you may (if authorized by the copyright holders of
351 | that material) supplement the terms of this License with terms:
352 | 
353 |     a) Disclaiming warranty or limiting liability differently from the
354 |     terms of sections 15 and 16 of this License; or
355 | 
356 |     b) Requiring preservation of specified reasonable legal notices or
357 |     author attributions in that material or in the Appropriate Legal
358 |     Notices displayed by works containing it; or
359 | 
360 |     c) Prohibiting misrepresentation of the origin of that material, or
361 |     requiring that modified versions of such material be marked in
362 |     reasonable ways as different from the original version; or
363 | 
364 |     d) Limiting the use for publicity purposes of names of licensors or
365 |     authors of the material; or
366 | 
367 |     e) Declining to grant rights under trademark law for use of some
368 |     trade names, trademarks, or service marks; or
369 | 
370 |     f) Requiring indemnification of licensors and authors of that
371 |     material by anyone who conveys the material (or modified versions of
372 |     it) with contractual assumptions of liability to the recipient, for
373 |     any liability that these contractual assumptions directly impose on
374 |     those licensors and authors.
375 | 
376 |   All other non-permissive additional terms are considered "further
377 | restrictions" within the meaning of section 10.  If the Program as you
378 | received it, or any part of it, contains a notice stating that it is
379 | governed by this License along with a term that is a further
380 | restriction, you may remove that term.  If a license document contains
381 | a further restriction but permits relicensing or conveying under this
382 | License, you may add to a covered work material governed by the terms
383 | of that license document, provided that the further restriction does
384 | not survive such relicensing or conveying.
385 | 
386 |   If you add terms to a covered work in accord with this section, you
387 | must place, in the relevant source files, a statement of the
388 | additional terms that apply to those files, or a notice indicating
389 | where to find the applicable terms.
390 | 
391 |   Additional terms, permissive or non-permissive, may be stated in the
392 | form of a separately written license, or stated as exceptions;
393 | the above requirements apply either way.
394 | 
395 |   8. Termination.
396 | 
397 |   You may not propagate or modify a covered work except as expressly
398 | provided under this License.  Any attempt otherwise to propagate or
399 | modify it is void, and will automatically terminate your rights under
400 | this License (including any patent licenses granted under the third
401 | paragraph of section 11).
402 | 
403 |   However, if you cease all violation of this License, then your
404 | license from a particular copyright holder is reinstated (a)
405 | provisionally, unless and until the copyright holder explicitly and
406 | finally terminates your license, and (b) permanently, if the copyright
407 | holder fails to notify you of the violation by some reasonable means
408 | prior to 60 days after the cessation.
409 | 
410 |   Moreover, your license from a particular copyright holder is
411 | reinstated permanently if the copyright holder notifies you of the
412 | violation by some reasonable means, this is the first time you have
413 | received notice of violation of this License (for any work) from that
414 | copyright holder, and you cure the violation prior to 30 days after
415 | your receipt of the notice.
416 | 
417 |   Termination of your rights under this section does not terminate the
418 | licenses of parties who have received copies or rights from you under
419 | this License.  If your rights have been terminated and not permanently
420 | reinstated, you do not qualify to receive new licenses for the same
421 | material under section 10.
422 | 
423 |   9. Acceptance Not Required for Having Copies.
424 | 
425 |   You are not required to accept this License in order to receive or
426 | run a copy of the Program.  Ancillary propagation of a covered work
427 | occurring solely as a consequence of using peer-to-peer transmission
428 | to receive a copy likewise does not require acceptance.  However,
429 | nothing other than this License grants you permission to propagate or
430 | modify any covered work.  These actions infringe copyright if you do
431 | not accept this License.  Therefore, by modifying or propagating a
432 | covered work, you indicate your acceptance of this License to do so.
433 | 
434 |   10. Automatic Licensing of Downstream Recipients.
435 | 
436 |   Each time you convey a covered work, the recipient automatically
437 | receives a license from the original licensors, to run, modify and
438 | propagate that work, subject to this License.  You are not responsible
439 | for enforcing compliance by third parties with this License.
440 | 
441 |   An "entity transaction" is a transaction transferring control of an
442 | organization, or substantially all assets of one, or subdividing an
443 | organization, or merging organizations.  If propagation of a covered
444 | work results from an entity transaction, each party to that
445 | transaction who receives a copy of the work also receives whatever
446 | licenses to the work the party's predecessor in interest had or could
447 | give under the previous paragraph, plus a right to possession of the
448 | Corresponding Source of the work from the predecessor in interest, if
449 | the predecessor has it or can get it with reasonable efforts.
450 | 
451 |   You may not impose any further restrictions on the exercise of the
452 | rights granted or affirmed under this License.  For example, you may
453 | not impose a license fee, royalty, or other charge for exercise of
454 | rights granted under this License, and you may not initiate litigation
455 | (including a cross-claim or counterclaim in a lawsuit) alleging that
456 | any patent claim is infringed by making, using, selling, offering for
457 | sale, or importing the Program or any portion of it.
458 | 
459 |   11. Patents.
460 | 
461 |   A "contributor" is a copyright holder who authorizes use under this
462 | License of the Program or a work on which the Program is based.  The
463 | work thus licensed is called the contributor's "contributor version".
464 | 
465 |   A contributor's "essential patent claims" are all patent claims
466 | owned or controlled by the contributor, whether already acquired or
467 | hereafter acquired, that would be infringed by some manner, permitted
468 | by this License, of making, using, or selling its contributor version,
469 | but do not include claims that would be infringed only as a
470 | consequence of further modification of the contributor version.  For
471 | purposes of this definition, "control" includes the right to grant
472 | patent sublicenses in a manner consistent with the requirements of
473 | this License.
474 | 
475 |   Each contributor grants you a non-exclusive, worldwide, royalty-free
476 | patent license under the contributor's essential patent claims, to
477 | make, use, sell, offer for sale, import and otherwise run, modify and
478 | propagate the contents of its contributor version.
479 | 
480 |   In the following three paragraphs, a "patent license" is any express
481 | agreement or commitment, however denominated, not to enforce a patent
482 | (such as an express permission to practice a patent or covenant not to
483 | sue for patent infringement).  To "grant" such a patent license to a
484 | party means to make such an agreement or commitment not to enforce a
485 | patent against the party.
486 | 
487 |   If you convey a covered work, knowingly relying on a patent license,
488 | and the Corresponding Source of the work is not available for anyone
489 | to copy, free of charge and under the terms of this License, through a
490 | publicly available network server or other readily accessible means,
491 | then you must either (1) cause the Corresponding Source to be so
492 | available, or (2) arrange to deprive yourself of the benefit of the
493 | patent license for this particular work, or (3) arrange, in a manner
494 | consistent with the requirements of this License, to extend the patent
495 | license to downstream recipients.  "Knowingly relying" means you have
496 | actual knowledge that, but for the patent license, your conveying the
497 | covered work in a country, or your recipient's use of the covered work
498 | in a country, would infringe one or more identifiable patents in that
499 | country that you have reason to believe are valid.
500 | 
501 |   If, pursuant to or in connection with a single transaction or
502 | arrangement, you convey, or propagate by procuring conveyance of, a
503 | covered work, and grant a patent license to some of the parties
504 | receiving the covered work authorizing them to use, propagate, modify
505 | or convey a specific copy of the covered work, then the patent license
506 | you grant is automatically extended to all recipients of the covered
507 | work and works based on it.
508 | 
509 |   A patent license is "discriminatory" if it does not include within
510 | the scope of its coverage, prohibits the exercise of, or is
511 | conditioned on the non-exercise of one or more of the rights that are
512 | specifically granted under this License.  You may not convey a covered
513 | work if you are a party to an arrangement with a third party that is
514 | in the business of distributing software, under which you make payment
515 | to the third party based on the extent of your activity of conveying
516 | the work, and under which the third party grants, to any of the
517 | parties who would receive the covered work from you, a discriminatory
518 | patent license (a) in connection with copies of the covered work
519 | conveyed by you (or copies made from those copies), or (b) primarily
520 | for and in connection with specific products or compilations that
521 | contain the covered work, unless you entered into that arrangement,
522 | or that patent license was granted, prior to 28 March 2007.
523 | 
524 |   Nothing in this License shall be construed as excluding or limiting
525 | any implied license or other defenses to infringement that may
526 | otherwise be available to you under applicable patent law.
527 | 
528 |   12. No Surrender of Others' Freedom.
529 | 
530 |   If conditions are imposed on you (whether by court order, agreement or
531 | otherwise) that contradict the conditions of this License, they do not
532 | excuse you from the conditions of this License.  If you cannot convey a
533 | covered work so as to satisfy simultaneously your obligations under this
534 | License and any other pertinent obligations, then as a consequence you may
535 | not convey it at all.  For example, if you agree to terms that obligate you
536 | to collect a royalty for further conveying from those to whom you convey
537 | the Program, the only way you could satisfy both those terms and this
538 | License would be to refrain entirely from conveying the Program.
539 | 
540 |   13. Remote Network Interaction; Use with the GNU General Public License.
541 | 
542 |   Notwithstanding any other provision of this License, if you modify the
543 | Program, your modified version must prominently offer all users
544 | interacting with it remotely through a computer network (if your version
545 | supports such interaction) an opportunity to receive the Corresponding
546 | Source of your version by providing access to the Corresponding Source
547 | from a network server at no charge, through some standard or customary
548 | means of facilitating copying of software.  This Corresponding Source
549 | shall include the Corresponding Source for any work covered by version 3
550 | of the GNU General Public License that is incorporated pursuant to the
551 | following paragraph.
552 | 
553 |   Notwithstanding any other provision of this License, you have
554 | permission to link or combine any covered work with a work licensed
555 | under version 3 of the GNU General Public License into a single
556 | combined work, and to convey the resulting work.  The terms of this
557 | License will continue to apply to the part which is the covered work,
558 | but the work with which it is combined will remain governed by version
559 | 3 of the GNU General Public License.
560 | 
561 |   14. Revised Versions of this License.
562 | 
563 |   The Free Software Foundation may publish revised and/or new versions of
564 | the GNU Affero General Public License from time to time.  Such new versions
565 | will be similar in spirit to the present version, but may differ in detail to
566 | address new problems or concerns.
567 | 
568 |   Each version is given a distinguishing version number.  If the
569 | Program specifies that a certain numbered version of the GNU Affero General
570 | Public License "or any later version" applies to it, you have the
571 | option of following the terms and conditions either of that numbered
572 | version or of any later version published by the Free Software
573 | Foundation.  If the Program does not specify a version number of the
574 | GNU Affero General Public License, you may choose any version ever published
575 | by the Free Software Foundation.
576 | 
577 |   If the Program specifies that a proxy can decide which future
578 | versions of the GNU Affero General Public License can be used, that proxy's
579 | public statement of acceptance of a version permanently authorizes you
580 | to choose that version for the Program.
581 | 
582 |   Later license versions may give you additional or different
583 | permissions.  However, no additional obligations are imposed on any
584 | author or copyright holder as a result of your choosing to follow a
585 | later version.
586 | 
587 |   15. Disclaimer of Warranty.
588 | 
589 |   THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
590 | APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
591 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
592 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
593 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
594 | PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
595 | IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
596 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
597 | 
598 |   16. Limitation of Liability.
599 | 
600 |   IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
601 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
602 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
603 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
604 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
605 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
606 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
607 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
608 | SUCH DAMAGES.
609 | 
610 |   17. Interpretation of Sections 15 and 16.
611 | 
612 |   If the disclaimer of warranty and limitation of liability provided
613 | above cannot be given local legal effect according to their terms,
614 | reviewing courts shall apply local law that most closely approximates
615 | an absolute waiver of all civil liability in connection with the
616 | Program, unless a warranty or assumption of liability accompanies a
617 | copy of the Program in return for a fee.
618 | 
619 |                      END OF TERMS AND CONDITIONS
620 | 
621 |             How to Apply These Terms to Your New Programs
622 | 
623 |   If you develop a new program, and you want it to be of the greatest
624 | possible use to the public, the best way to achieve this is to make it
625 | free software which everyone can redistribute and change under these terms.
626 | 
627 |   To do so, attach the following notices to the program.  It is safest
628 | to attach them to the start of each source file to most effectively
629 | state the exclusion of warranty; and each file should have at least
630 | the "copyright" line and a pointer to where the full notice is found.
631 | 
632 |     <one line to give the program's name and a brief idea of what it does.>
633 |     Copyright (C) <year>  <name of author>
634 | 
635 |     This program is free software: you can redistribute it and/or modify
636 |     it under the terms of the GNU Affero General Public License as published
637 |     by the Free Software Foundation, either version 3 of the License, or
638 |     (at your option) any later version.
639 | 
640 |     This program is distributed in the hope that it will be useful,
641 |     but WITHOUT ANY WARRANTY; without even the implied warranty of
642 |     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
643 |     GNU Affero General Public License for more details.
644 | 
645 |     You should have received a copy of the GNU Affero General Public License
646 |     along with this program.  If not, see <https://www.gnu.org/licenses/>.
647 | 
648 | Also add information on how to contact you by electronic and paper mail.
649 | 
650 |   If your software can interact with users remotely through a computer
651 | network, you should also make sure that it provides a way for users to
652 | get its source.  For example, if your program is a web application, its
653 | interface could display a "Source" link that leads users to an archive
654 | of the code.  There are many ways you could offer source, and different
655 | solutions will be better for different programs; see section 13 for the
656 | specific requirements.
657 | 
658 |   You should also get your employer (if you work as a programmer) or school,
659 | if any, to sign a "copyright disclaimer" for the program, if necessary.
660 | For more information on this, and how to apply and follow the GNU AGPL, see
661 | <https://www.gnu.org/licenses/>.
662 | 


--------------------------------------------------------------------------------
/Makefile:
--------------------------------------------------------------------------------
 1 | #application
 2 | 
 3 | export POX_PATH := /opt/ik2220/pox
 4 | export APP_PATH := ik2220
 5 | app:
 6 | 	#mkdir $$POX_PATH/ext/$$APP_PATH
 7 | 	#python -m compileall ./sdn/task1/
 8 | 	cp sdn/task1/* $$POX_PATH/ext/
 9 | 	python -m compileall $$POX_PATH/ext/
10 | 	sudo python $$POX_PATH/pox.py l2_firewall &
11 | 	#sudo python $$POX_PATH/pox.py $$APP_PATH.l2_firewall
12 | 
13 | clean:
14 | 	sudo pkill -9 -f pox.py
15 |   
16 | #topology
17 |   
18 | topo:
19 | 	sudo python phase1.py
20 | 
21 | clean:
22 | 	sudo mn -c
23 | 
24 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | [![Build Status](https://travis-ci.org/shrin18/SDN_Project.svg?branch=master)](https://travis-ci.org/shrin18/SDN_Project)
 2 | 
 3 | ## SDN_Project
 4 | 
 5 | <img width="500" alt="topo" src="https://user-images.githubusercontent.com/23298265/58379578-ae2c9700-7fa5-11e9-80a6-9f4c0dfc71fa.PNG">
 6 | 
 7 | <p>This is a project based on the above topology which incorporates the use of Load Balanacer, Firewalls, Intrusion detecion system and the NAPT. The topology of this project is divided into three zones namely: Private, Public and DmZ. Stress Tests for the two firewalls are run by sending packets from one zone to the other. There are two sets of servers that are running a simpleHTTP and DNS server as configured in the dns.py scripts. Tests are also run for testing these servers using dig and curl commands respectively.</p>
 8 | 
 9 | <h3>Mininet Tutorial</h3>
10 | https://kth.instructure.com/courses/7689/pages/ik2220-tutorial-video-mininet+pox?module_item_id=134779e
11 | 
12 | <h3>Visualiser</h3> http://mininet.spear.narmox.com
13 | *Just paste your answer for links and dump in the given link and render graph for the topology for mininet*
14 | 
15 | <h3>Repo for VND (Visual Network Descriptor)</h3> https://github.com/ramonfontes/vnd
16 |                             
17 |                             
18 | <h3>Commands for Starting topology, firewall, click scripts independently</h3>
19 | <ol><strong>1. Topology</strong></ol>
20 | <br>sudo python filename.py</br>
21 | <ol><font size = "+15" ><strong>2. Firewall</strong></font></ol>
22 | <br>./pox.py log.level --DEBUG forwarding.l2_firewall</br>
23 | <ol><strong>3. Click</strong></ol>
24 | <br>sudo /usr/local/bin/click filename.click</br>
25 | 


--------------------------------------------------------------------------------
/_config.yml:
--------------------------------------------------------------------------------
1 | theme: jekyll-theme-cayman


--------------------------------------------------------------------------------
/click/Makefile:
--------------------------------------------------------------------------------
 1 | export POX_PATH := /opt/ik2220/pox
 2 | export APP_PATH := ik2220
 3 | export PATHRR := $(CURDIR)
 4 | app:
 5 | 	sudo cp sdn/* $$POX_PATH/ext/
 6 | 	sudo cp nfv/* $$POX_PATH/ext/
 7 | 	sudo python -m compileall $$POX_PATH/ext/
 8 | 	sudo python $$POX_PATH/pox.py l2_firewall --pathExec=$$PATHRR &
 9 | 
10 | clean:
11 | 	-sudo pkill -2 -f click
12 | 	-sudo pkill -9 -f pox
13 | 	
14 | 


--------------------------------------------------------------------------------
/click/ids.click:
--------------------------------------------------------------------------------
 1 | //Intrusion detection system
 2 | // Benign -> HTTP POST, PUT
 3 | // Malicious -> SQL injection  (cat /etc/passwd, cat /var/log/, INSERT, UPDATE, DELETE), 
 4 | //              HTTP GET, HEAD, OPTIONS, TRACE, DELETE, CONNECT
 5 | /*
 6 | +------ v ------+            +---------------+            +---------------+
 7 | |               |            |               |            |               |
 8 | |    SW2        |------------>     IDS       +----Benign-->    LB2        |
 9 | |               | fromSwitch |               |            |               |
10 | +---------------+            +-------+-------+            +---------------+
11 |                                      |
12 |                                  Malicious
13 |                                      |
14 |                              +------ v ------+
15 |                              |               |
16 |                              |     INSP      |
17 |                              |               |
18 |                              +---------------+
19 | */
20 | 
21 | ctr_pkt_in, ctr_pkt_malicious, ctr_pkt_benign :: AverageCounter;
22 | 
23 | fromSwitch :: FromDevice(id8-eth1, METHOD LINUX, SNIFFER false);
24 | fromLoadbal :: FromDevice(id8-eth2, METHOD LINUX, SNIFFER false);
25 | 
26 | toSwitch :: Queue -> ToDevice(id8-eth1); // connect sw2
27 | toInsp :: Queue -> ctr_pkt_malicious -> ToDevice(id8-eth3); // connect insp and count number of malicious packets
28 | toLoadbal :: Queue -> ctr_pkt_benign -> ToDevice(id8-eth2); // connect lb2 and count number of benign packets
29 | 
30 | //Define patterns to look out for
31 | filter :: Classifier( 
32 | 	66/474554, // HTTP GET
33 | 	66/48454144, // HTTP head
34 | 	66/5452414345, // HTTP TRACE
35 | 	66/4f5054494f4e53, //HTTP OPTIONS
36 | 	66/44454c455445, //HTTP DELETE
37 | 	66/434f4e4e454354, //HTTP CONNECT
38 | 	209/636174202f6574632f706173737764, // "cat /etc/passwd"
39 | 	209/636174202f7661722f6c6f672f, // "cat /var/log/"
40 | 	208/494E53455254, //"INSERT"
41 | 	208/555044415445, //"UPDATE"
42 | 	208/44454C455445, //"DELETE"
43 | 	-); 
44 | 
45 | 
46 | fromSwitch -> ctr_pkt_in -> filter; //  Count incoming pkts before sending to filter 
47 | 
48 | filter[0],filter[1],filter[2],filter[3],filter[4],filter[5],filter[6],filter[7],filter[8],filter[9],filter[10] -> toInsp;   // Send malicious pkts to Inspector
49 | 
50 | filter[11] -> toLoadbal;    //send all rest of the pkts(-) to loadbalancer2
51 | 
52 | fromLoadbal -> toSwitch;    // On return path ids should be transparant to all packets. Send all pkts from loadbalancer2 to sw2 
53 | 
54 | 
55 | // report
56 | DriverManager(wait , print >  $rPath/../results/ids.counter " #../results/ids.report
57 | 	=================== IDS Report ===================
58 | 	Input Packet Rate (pps): $(ctr_pkt_in.rate)
59 | 	Output Packet Rate(pps): $(ctr_pkt_benign.rate)
60 | 	Total # of input packets: $(ctr_pkt_in.count)
61 | 	Total # of output packets: $(ctr_pkt_benign.count)
62 | 	Total # of dropped packets: $(ctr_pkt_malicious.count)
63 | 	==================================================
64 | " , stop);
65 | 


--------------------------------------------------------------------------------
/click/lb.click:
--------------------------------------------------------------------------------
  1 | // define counter
  2 | counter_from_DmZ, counter_from_PrZ, counter_to_DmZ, counter_to_PrZ :: AverageCounter;
  3 | arp_req1, arp_res1, icmp1, ip1 :: Counter;
  4 | arp_req2, arp_res2, icmp2, ip2 :: Counter;
  5 | drop1, drop2, drop3, drop4 :: Counter;
  6 | 
  7 | AddressInfo(
  8 | 	DmZ		100.0.0.1  	00:00:00:01:00:01,
  9 | 	PrZ		10.0.0.1	00:00:00:00:10:01,
 10 | );
 11 | 
 12 | 
 13 | // DmZ to PrZ
 14 | from_DmZ :: FromDevice(n9-eth1, METHOD LINUX, SNIFFER false);
 15 | to_PrZ :: Queue -> counter_to_PrZ -> ToDevice(n9-eth2);
 16 | 
 17 | 
 18 | // PrZ to DmZ
 19 | from_PrZ :: FromDevice(n9-eth2, METHOD LINUX, SNIFFER false);
 20 | to_DmZ :: Queue -> counter_to_DmZ -> ToDevice(n9-eth1);
 21 | 
 22 | 
 23 | // Packet classifier
 24 | PrZ_classifier, DmZ_classifier :: Classifier(
 25 | 	12/0806 20/0001, //[0]ARP request
 26 | 	12/0806 20/0002, //[1]ARP reply
 27 | 	12/0800, 		 //[2]IP
 28 | 	-); 			 //[3]rest
 29 | 	
 30 | 	
 31 | // ARP querier
 32 | DmZ_arpq :: ARPQuerier(DmZ);
 33 | PrZ_arpq :: ARPQuerier(PrZ);
 34 | 
 35 | 
 36 | // IP packet
 37 | ip_to_DmZ :: GetIPAddress(16) -> CheckIPHeader -> [0]DmZ_arpq -> IPPrint("Ip packet to DmZ") -> to_DmZ;
 38 | ip_to_PrZ :: GetIPAddress(16) -> CheckIPHeader -> [0]PrZ_arpq -> IPPrint("Ip packet to PrZ") -> to_PrZ;
 39 | 
 40 | 
 41 | // TCP & UDP rewrite 
 42 | ip_rewrite :: IPRewriter(pattern 100.0.0.1 20000-65535 - - 0 1,drop);
 43 | ip_rewrite[0] -> ip_to_DmZ;
 44 | ip_rewrite[1] -> ip_to_PrZ;
 45 | 
 46 | 
 47 | // ICMP echo rewrite
 48 | icmp_rewrite :: ICMPPingRewriter(pattern 100.0.0.1 20000-65535 - - 0 1,drop);
 49 | icmp_rewrite[0] -> ip_to_DmZ;
 50 | icmp_rewrite[1] -> ip_to_PrZ;
 51 | 
 52 | 
 53 | // packet from DmZ
 54 | from_DmZ  -> counter_from_DmZ -> DmZ_classifier;
 55 | DmZ_classifier[0] -> arp_req1 -> ARPResponder(DmZ) -> to_DmZ; //ARP request
 56 | DmZ_classifier[1] -> arp_res1 -> [1]DmZ_arpq; //ARP reply
 57 | DmZ_classifier[2] -> ip1 -> Strip(14) -> CheckIPHeader -> IPPrint("IP packet from DmZ") -> DmZ_IP_classifier :: IPClassifier(icmp type echo-reply, udp or tcp, -); //IP packet
 58 | 	DmZ_IP_classifier[0] -> icmp2 -> [1]icmp_rewrite;
 59 | 	DmZ_IP_classifier[1] -> [1]ip_rewrite;
 60 | 	DmZ_IP_classifier[2] -> drop3 -> Discard;
 61 | DmZ_classifier[3] -> drop1 -> Discard; //Drop rest packet
 62 | 
 63 | 
 64 | // packet from PrZ
 65 | from_PrZ -> counter_from_PrZ -> PrZ_classifier;
 66 | PrZ_classifier[0] -> arp_req2 -> ARPResponder(PrZ)-> to_PrZ; //ARP request
 67 | PrZ_classifier[1] -> arp_res2 -> [1]PrZ_arpq; //ARP reply
 68 | PrZ_classifier[2] -> ip2 -> Strip(14)-> CheckIPHeader -> IPPrint("IP packet from PrZ") -> PrZ_IP_classifier :: IPClassifier(icmp type echo, udp or tcp, -); //IP packet
 69 | 	PrZ_IP_classifier[0] -> icmp1 -> [0]icmp_rewrite;
 70 | 	PrZ_IP_classifier[1] -> [0]ip_rewrite;
 71 | 	PrZ_IP_classifier[2] -> drop4 -> Discard;
 72 | PrZ_classifier[3] -> drop2 -> Discard; //Drop rest packet
 73 | 
 74 | 
 75 | // report
 76 | DriverManager(wait , print > $rPath/../results/napt.counter "
 77 | 	=================== NAPT Report ===================
 78 | 	Input Packet Rate (pps): $(add $(counter_from_DmZ.rate) $(counter_from_PrZ.rate))
 79 | 	Output Packet Rate(pps): $(add $(counter_to_DmZ.rate)  $(counter_to_PrZ.rate))
 80 | 
 81 | 	Total # of input packets: $(add $(counter_from_DmZ.count) $(counter_from_PrZ.count))
 82 | 	Total # of output packets: $(add $(counter_to_DmZ.count)  $(counter_to_PrZ.count))
 83 | 
 84 | 	Total # of ARP requests packets: $(add $(arp_req1.count) $(arp_req2.count))
 85 | 	Total # of ARP respondes packets: $(add $(arp_res1.count) $(arp_res2.count))
 86 | 
 87 | 	Total # of service requests packets: $(add $(ip1.count) $(ip2.count))
 88 | 	Total # of ICMP packets: $(add $(icmp1.count) $(icmp2.count))
 89 | 	Total # of dropped packets: $(add $(drop1.count) $(drop2.count) $(drop3.count) $(drop4.count))
 90 | 	================================================== 
 91 | " , stop);
 92 | 
 93 | 
 94 | shrinish@click:/home/tejankar/ik2220-assign-phase2-team5/application/nfv$ 
 95 | shrinish@click:/home/tejankar/ik2220-assign-phase2-team5/application/nfv$ 
 96 | shrinish@click:/home/tejankar/ik2220-assign-phase2-team5/application/nfv$ 
 97 | shrinish@click:/home/tejankar/ik2220-assign-phase2-team5/application/nfv$ 
 98 | shrinish@click:/home/tejankar/ik2220-assign-phase2-team5/application/nfv$ 
 99 | shrinish@click:/home/tejankar/ik2220-assign-phase2-team5/application/nfv$ cat lb_update.click 
100 | //LOAD BALANCER 
101 | 
102 | //define average counters
103 | IF1_in, IF1_out, IF2_in, IF2_out :: AverageCounter; 
104 | 
105 | //define counters for different packets
106 | arp_req1, arp_rep1, ip1 :: Counter;
107 | arp_req2, arp_rep2, ip2 :: Counter;
108 | icmp, drop_IF1, drop_IF2, drop_IP :: Counter;
109 | 
110 | // Traffic from server to client
111 | init_serv :: FromDevice($LB-$port1, METHOD LINUX, SNIFFER false);
112 | end_cli :: Queue -> IF1_out -> ToDevice($LB-$port2, METHOD LINUX); 
113 | 
114 | // Traffic from client to server
115 | init_cli :: FromDevice($LB-$port2, METHOD LINUX, SNIFFER false);
116 | end_serv :: Queue -> IF2_out -> ToDevice($LB-$port1, METHOD LINUX);
117 | 
118 | 
119 | // Packet classification
120 | cli_pkt, serv_pkt :: Classifier(
121 | 					12/0806 20/0001, //[0]ARP request
122 | 					12/0806 20/0002, //[1]ARP reply
123 | 					12/0800,	 //[2]IP
124 | 					-);		 //[3]others
125 | 
126 | 	
127 | // ARP query definition
128 | serv_arpq :: ARPQuerier($VIP/32, $LB-$port1);
129 | cli_arpq :: ARPQuerier($VIP/32, $LB-$port2);
130 | 
131 | 
132 | // IP packet
133 | // GetIPAddress(16) OFFSET is usually 16, to fetch the destination address from an IP packet.
134 | 
135 | ip_to_cli :: GetIPAddress(16) -> CheckIPHeader -> [0]cli_arpq -> IPPrint("IP packet destined to client") -> end_cli;
136 | ip_to_serv :: GetIPAddress(16) -> CheckIPHeader -> [0]serv_arpq -> IPPrint("IP packet destined to server") -> end_serv;
137 | 
138 | 
139 | // Load balancing through Round Rrobin and IP Rewrite elements
140 | ip_map :: RoundRobinIPMapper(
141 | 	$VIP - $DIP_1 $prt_n 0 1, 
142 | 	$VIP - $DIP_2 $prt_n 0 1, 
143 | 	$VIP - $DIP_3 $prt_n 0 1);
144 | ip_assign :: IPRewriter(ip_map, pattern $VIP 20000-65535 - -  1 0);
145 | ip_assign[0] -> ip_to_serv;
146 | ip_assign[1] -> ip_to_cli;
147 | 
148 | 
149 | // packet coming from server 
150 | init_serv -> IF2_in -> serv_pkt;
151 | serv_pkt[0] -> arp_req2 -> ARPResponder($VIP $LB-$port1) -> end_serv; 
152 | serv_pkt[1] -> arp_rep2 -> [1]serv_arpq;
153 | serv_pkt[2] -> ip2 -> Strip(14) -> CheckIPHeader -> IPPrint("IP packet coming from server") -> [1]ip_assign; //IP packet and Strip(14) to get rid of the Ethernet header
154 | serv_pkt[3] -> drop_IF2 -> Discard; //Drop other packets
155 | 
156 | // packet coming from client 
157 | init_cli -> IF1_in -> cli_pkt;
158 | cli_pkt[0] -> arp_req1 -> ARPResponder($VIP $LB-$port2) -> end_cli; 
159 | cli_pkt[1] -> arp_rep1 -> [1]cli_arpq; 
160 | cli_pkt[2] -> ip1 -> Strip(14) -> CheckIPHeader -> IPPrint("IP packet coming from client") -> cli_IP_pkt :: IPClassifier(icmp, dst $prt port $prt_n, -); //IP packet
161 | 	cli_IP_pkt[0] -> icmp -> icmppr :: ICMPPingResponder() -> ip_to_cli; //ICMP
162 | 	cli_IP_pkt[1] -> [0]ip_assign; 
163 | 	cli_IP_pkt[2] -> drop_IP -> Discard; //drop other IP packets
164 | cli_pkt[3] -> drop_IF1 -> Discard; //Drop other packet
165 | 
166 | 
167 | 
168 | //Report generation
169 | 
170 | DriverManager(wait , print > $rPath/../results/$LB.counter  "
171 | 	=================== LB Report ===================================
172 | 	Input Packet Rate (pps): $(add $(IF2_in.rate) $(IF1_in.rate))
173 | 	Output Packet Rate(pps): $(add $(IF2_out.rate) $(IF1_out.rate))
174 | 	Total # of input packets: $(add $(IF2_in.count) $(IF1_in.count))
175 | 	Total # of output packets: $(add $(IF2_out.count) $(IF2_out.count))
176 | 	Total # of ARP requests packets: $(add $(arp_req1.count) $(arp_req2.count))
177 | 	Total # of ARP respondes packets: $(add $(arp_rep1.count) $(arp_rep2.count))
178 | 	Total # of service requests packets: $(add $(ip1.count) $(ip2.count))
179 | 	Total # of ICMP packets: $(icmp.count)
180 | 	Total # of dropped packets: $(add $(drop_IF1.count) $(drop_IF2.count) $(drop_IP.count))
181 | 	==================================================================== 
182 | " , stop);
183 | 


--------------------------------------------------------------------------------
/click/lb1.click:
--------------------------------------------------------------------------------
  1 | //LOAD BALANCER
  2 | 
  3 | //define average counters
  4 | IF1_in, IF1_out, IF2_in, IF2_out :: AverageCounter; 
  5 | 
  6 | //define counters for different packets
  7 | arp_req1, arp_rep1, ip1 :: Counter;
  8 | arp_req2, arp_rep2, ip2 :: Counter;
  9 | icmp, drop_IF1, drop_IF2, drop_IP :: Counter;
 10 | 
 11 | // Traffic from server to client
 12 | init_serv :: FromDevice(lb7-eth1, METHOD LINUX, SNIFFER false);
 13 | end_cli :: Queue -> IF1_out -> ToDevice(lb7-eth2, METHOD LINUX); 
 14 | 
 15 | // Traffic from client to server
 16 | init_cli :: FromDevice(lb7-eth2, METHOD LINUX, SNIFFER false);
 17 | end_serv :: Queue -> IF2_out -> ToDevice(lb7-eth1, METHOD LINUX);
 18 | 
 19 | 
 20 | // Packet classification
 21 | cli_pkt, serv_pkt :: Classifier(
 22 | 					12/0806 20/0001, //[0]ARP request
 23 | 					12/0806 20/0002, //[1]ARP reply
 24 | 					12/0800,	 //[2]IP
 25 | 					-);		 //[3]others
 26 | 
 27 | 	
 28 | // ARP query definition
 29 | serv_arpq :: ARPQuerier(100.0.0.45, lb7-eth1);
 30 | cli_arpq :: ARPQuerier(100.0.0.45, lb7-eth2);
 31 | 
 32 | 
 33 | // IP packet
 34 | // GetIPAddress(16) OFFSET is usually 16, to fetch the destination address from an IP packet.
 35 | 
 36 | ip_to_cli :: GetIPAddress(16) -> CheckIPHeader -> [0]cli_arpq -> IPPrint("IP packet destined to client") -> end_cli;
 37 | ip_to_serv :: GetIPAddress(16) -> CheckIPHeader -> [0]serv_arpq -> IPPrint("IP packet destined to server") -> end_serv;
 38 | 
 39 | 
 40 | // Load balancing through Round Rrobin and IP Rewrite elements
 41 | ip_map :: RoundRobinIPMapper(
 42 | 	100.0.0.45 - 100.0.0.40 80 0 1, 
 43 | 	100.0.0.45 - 100.0.0.41 80 0 1, 
 44 | 	100.0.0.45 - 100.0.0.42 80 0 1);
 45 | ip_assign :: IPRewriter(ip_map, pattern 100.0.0.45 20000-65535 - -  1 0);
 46 | ip_assign[0] -> ip_to_serv;
 47 | ip_assign[1] -> ip_to_cli;
 48 | 
 49 | 
 50 | // packet coming from server 
 51 | init_serv -> IF2_in -> serv_pkt;
 52 | serv_pkt[0] -> arp_req2 -> ARPResponder(100.0.0.45 lb7-eth1) -> end_serv; 
 53 | serv_pkt[1] -> arp_rep2 -> [1]serv_arpq;
 54 | serv_pkt[2] -> ip2 -> Strip(14) -> CheckIPHeader -> IPPrint("IP packet coming from server") -> [1]ip_assign; //IP packet and Strip(14) to get rid of the Ethernet header
 55 | serv_pkt[3] -> drop_IF2 -> Discard; //Drop other packets
 56 | 
 57 | // packet coming from client 
 58 | init_cli -> IF1_in -> cli_pkt;
 59 | cli_pkt[0] -> arp_req1 -> ARPResponder(100.0.0.45 lb7-eth2) -> end_cli; 
 60 | cli_pkt[1] -> arp_rep1 -> [1]cli_arpq; 
 61 | cli_pkt[2] -> ip1 -> Strip(14) -> CheckIPHeader -> IPPrint("IP packet coming from client") -> cli_IP_pkt :: IPClassifier(icmp, dst tcp port 80, -); //IP packet
 62 | 	cli_IP_pkt[0] -> icmp -> icmppr :: ICMPPingResponder() -> ip_to_cli; //ICMP
 63 | 	cli_IP_pkt[1] -> [0]ip_assign; //UDP
 64 | 	cli_IP_pkt[2] -> drop_IP -> Discard; //drop other IP packets
 65 | cli_pkt[3] -> drop_IF1 -> Discard; //Drop other packet
 66 | 
 67 | 
 68 | 
 69 | //Report generation
 70 | 
 71 | DriverManager(wait , print > lb2.report  "
 72 | 	=================== LB2 Report ===================================
 73 | 	Input Packet Rate (pps): $(add $(IF2_in.rate) $(IF1_in.rate))
 74 | 	Output Packet Rate(pps): $(add $(IF2_out.rate) $(IF1_out.rate))
 75 | 	Total # of input packets: $(add $(IF2_in.count) $(IF1_in.count))
 76 | 	Total # of output packets: $(add $(IF2_out.count) $(IF2_out.count))
 77 | 	Total # of ARP requests packets: $(add $(arp_req1.count) $(arp_req2.count))
 78 | 	Total # of ARP respondes packets: $(add $(arp_rep1.count) $(arp_rep2.count))
 79 | 	Total # of service requests packets: $(add $(ip1.count) $(ip2.count))
 80 | 	Total # of ICMP packets: $(icmp.count)
 81 | 	Total # of dropped packets: $(add $(drop_IF1.count) $(drop_IF2.count) $(drop_IP.count))
 82 | 	==================================================================== 
 83 | " , stop);
 84 | 
 85 | shrinish@click:/opt/ik2220/click$ 
 86 | shrinish@click:/opt/ik2220/click$ 
 87 | shrinish@click:/opt/ik2220/click$ 
 88 | shrinish@click:/opt/ik2220/click$ 
 89 | shrinish@click:/opt/ik2220/click$ cat LB1.click
 90 | IF1_in, IF1_out, IF2_in, IF2_out :: AverageCounter; 
 91 | 
 92 | //define counters for different packets
 93 | arp_req1, arp_rep1, ip1 :: Counter;
 94 | arp_req2, arp_rep2, ip2 :: Counter;
 95 | icmp, drop_IF1, drop_IF2, drop_IP :: Counter;
 96 | 
 97 | // Traffic from server to client
 98 | init_serv :: FromDevice(lb6-eth2, METHOD LINUX, SNIFFER false);
 99 | end_cli :: Queue -> IF2_out -> ToDevice(lb6-eth1, METHOD LINUX); 
100 | 
101 | // Traffic from client to server
102 | init_cli :: FromDevice(lb6-eth1, METHOD LINUX, SNIFFER false);
103 | end_serv :: Queue -> IF1_out -> ToDevice(lb6-eth2, METHOD LINUX);
104 | 
105 | 
106 | // Packet classification
107 | cli_pkt, serv_pkt :: Classifier(
108 | 					12/0806 20/0001, //[0]ARP request
109 | 					12/0806 20/0002, //[1]ARP reply
110 | 					12/0800,	 //[2]IP
111 | 					-);		 //[3]others
112 | 
113 | 	
114 | // ARP query definition
115 | serv_arpq :: ARPQuerier(100.0.0.25, lb6-eth2);
116 | cli_arpq :: ARPQuerier(100.0.0.25, lb6-eth1);
117 | 
118 | 
119 | // IP packet
120 | // GetIPAddress(16) OFFSET is usually 16, to fetch the destination address from an IP packet.
121 | 
122 | ip_to_cli :: GetIPAddress(16) -> CheckIPHeader -> [0]cli_arpq -> IPPrint("IP packet destined to client") -> end_cli;
123 | ip_to_serv :: GetIPAddress(16) -> CheckIPHeader -> [0]serv_arpq -> IPPrint("IP packet destined to server") -> end_serv;
124 | 
125 | 
126 | // Load balancing through Round Rrobin and IP Rewrite elements
127 | ip_map :: RoundRobinIPMapper(
128 | 	100.0.0.25 - 100.0.0.20 53 0 1, 
129 | 	100.0.0.25 - 100.0.0.21 53 0 1, 
130 | 	100.0.0.25 - 100.0.0.22 53 0 1);
131 | ip_assign :: IPRewriter(ip_map, pattern 100.0.0.25 20000-65535 - -  1 0);
132 | ip_assign[0] -> ip_to_serv;
133 | ip_assign[1] -> ip_to_cli;
134 | 
135 | 
136 | // packet coming from server 
137 | init_serv -> IF1_in -> serv_pkt;
138 | serv_pkt[0] -> arp_req2 -> ARPResponder(100.0.0.25 lb6-eth2) -> end_serv; 
139 | serv_pkt[1] -> arp_rep2 -> [1]serv_arpq;
140 | serv_pkt[2] -> ip2 -> Strip(14) -> CheckIPHeader -> IPPrint("IP packet coming from server") -> [1]ip_assign; //IP packet and Strip(14) to get rid of the Ethernet header
141 | serv_pkt[3] -> drop_IF1 -> Discard; //Drop other packets
142 | 
143 | // packet coming from client 
144 | init_cli -> IF2_in -> cli_pkt;
145 | cli_pkt[0] -> arp_req1 -> ARPResponder(100.0.0.25 lb6-eth1) -> end_cli; 
146 | cli_pkt[1] -> arp_rep1 -> [1]cli_arpq; 
147 | cli_pkt[2] -> ip1 -> Strip(14) -> CheckIPHeader -> IPPrint("IP packet coming from client") -> cli_IP_pkt :: IPClassifier(icmp, dst udp port 53, -); //IP packet
148 | 	cli_IP_pkt[0] -> icmp -> icmppr :: ICMPPingResponder() -> ip_to_cli; //ICMP
149 | 	cli_IP_pkt[1] -> [0]ip_assign; //UDP
150 | 	cli_IP_pkt[2] -> drop_IP -> Discard; //drop other IP packets
151 | cli_pkt[3] -> drop_IF2 -> Discard; //Drop other packet
152 | 
153 | 
154 | 
155 | //Report generation
156 | 
157 | DriverManager(wait , print > ../results/lb1.report  "
158 | 	=================== LB1 Report ===================================
159 | 	Input Packet Rate (pps): $(add $(IF2_in.rate) $(IF1_in.rate))
160 | 	Output Packet Rate(pps): $(add $(IF2_out.rate) $(IF1_out.rate))
161 | 
162 | 	Total # of input packets: $(add $(IF2_in.count) $(IF1_in.count))
163 | 	Total # of output packets: $(add $(IF2_out.count) $(IF2_out.count))
164 | 
165 | 	Total # of ARP requests packets: $(add $(arp_req1.count) $(arp_req2.count))
166 | 	Total # of ARP respondes packets: $(add $(arp_rep1.count) $(arp_rep2.count))
167 | 
168 | 	Total # of service requests packets: $(add $(ip1.count) $(ip2.count))
169 | 	Total # of ICMP packets: $(icmp.count)
170 | 	Total # of dropped packets: $(add $(drop_IF1.count) $(drop_IF2.count) $(drop_IP.count))
171 | 	==================================================================== 
172 | " , stop);
173 | 
174 | 


--------------------------------------------------------------------------------
/click/lb2.click:
--------------------------------------------------------------------------------
 1 | //LOAD BALANCER
 2 | 
 3 | //define average counters
 4 | IF1_in, IF1_out, IF2_in, IF2_out :: AverageCounter; 
 5 | 
 6 | //define counters for different packets
 7 | arp_req1, arp_rep1, ip1 :: Counter;
 8 | arp_req2, arp_rep2, ip2 :: Counter;
 9 | icmp, drop_IF1, drop_IF2, drop_IP :: Counter;
10 | 
11 | // Traffic from server to client
12 | init_serv :: FromDevice(lb7-eth1, METHOD LINUX, SNIFFER false);
13 | end_cli :: Queue -> IF1_out -> ToDevice(lb7-eth2, METHOD LINUX); 
14 | 
15 | // Traffic from client to server
16 | init_cli :: FromDevice(lb7-eth2, METHOD LINUX, SNIFFER false);
17 | end_serv :: Queue -> IF2_out -> ToDevice(lb7-eth1, METHOD LINUX);
18 | 
19 | 
20 | // Packet classification
21 | cli_pkt, serv_pkt :: Classifier(
22 | 					12/0806 20/0001, //[0]ARP request
23 | 					12/0806 20/0002, //[1]ARP reply
24 | 					12/0800,	 //[2]IP
25 | 					-);		 //[3]others
26 | 
27 | 	
28 | // ARP query definition
29 | serv_arpq :: ARPQuerier(100.0.0.45, lb7-eth1);
30 | cli_arpq :: ARPQuerier(100.0.0.45, lb7-eth2);
31 | 
32 | 
33 | // IP packet
34 | // GetIPAddress(16) OFFSET is usually 16, to fetch the destination address from an IP packet.
35 | 
36 | ip_to_cli :: GetIPAddress(16) -> CheckIPHeader -> [0]cli_arpq -> IPPrint("IP packet destined to client") -> end_cli;
37 | ip_to_serv :: GetIPAddress(16) -> CheckIPHeader -> [0]serv_arpq -> IPPrint("IP packet destined to server") -> end_serv;
38 | 
39 | 
40 | // Load balancing through Round Rrobin and IP Rewrite elements
41 | ip_map :: RoundRobinIPMapper(
42 | 	100.0.0.45 - 100.0.0.40 80 0 1, 
43 | 	100.0.0.45 - 100.0.0.41 80 0 1, 
44 | 	100.0.0.45 - 100.0.0.42 80 0 1);
45 | ip_assign :: IPRewriter(ip_map, pattern 100.0.0.45 20000-65535 - -  1 0);
46 | ip_assign[0] -> ip_to_serv;
47 | ip_assign[1] -> ip_to_cli;
48 | 
49 | 
50 | // packet coming from server 
51 | init_serv -> IF2_in -> serv_pkt;
52 | serv_pkt[0] -> arp_req2 -> ARPResponder(100.0.0.45 lb7-eth1) -> end_serv; 
53 | serv_pkt[1] -> arp_rep2 -> [1]serv_arpq;
54 | serv_pkt[2] -> ip2 -> Strip(14) -> CheckIPHeader -> IPPrint("IP packet coming from server") -> [1]ip_assign; //IP packet and Strip(14) to get rid of the Ethernet header
55 | serv_pkt[3] -> drop_IF2 -> Discard; //Drop other packets
56 | 
57 | // packet coming from client 
58 | init_cli -> IF1_in -> cli_pkt;
59 | cli_pkt[0] -> arp_req1 -> ARPResponder(100.0.0.45 lb7-eth2) -> end_cli; 
60 | cli_pkt[1] -> arp_rep1 -> [1]cli_arpq; 
61 | cli_pkt[2] -> ip1 -> Strip(14) -> CheckIPHeader -> IPPrint("IP packet coming from client") -> cli_IP_pkt :: IPClassifier(icmp, dst tcp port 80, -); //IP packet
62 | 	cli_IP_pkt[0] -> icmp -> icmppr :: ICMPPingResponder() -> ip_to_cli; //ICMP
63 | 	cli_IP_pkt[1] -> [0]ip_assign; //UDP
64 | 	cli_IP_pkt[2] -> drop_IP -> Discard; //drop other IP packets
65 | cli_pkt[3] -> drop_IF1 -> Discard; //Drop other packet
66 | 
67 | 
68 | 
69 | //Report generation
70 | 
71 | DriverManager(wait , print > lb2.report  "
72 | 	=================== LB2 Report ===================================
73 | 	Input Packet Rate (pps): $(add $(IF2_in.rate) $(IF1_in.rate))
74 | 	Output Packet Rate(pps): $(add $(IF2_out.rate) $(IF1_out.rate))
75 | 	Total # of input packets: $(add $(IF2_in.count) $(IF1_in.count))
76 | 	Total # of output packets: $(add $(IF2_out.count) $(IF2_out.count))
77 | 	Total # of ARP requests packets: $(add $(arp_req1.count) $(arp_req2.count))
78 | 	Total # of ARP respondes packets: $(add $(arp_rep1.count) $(arp_rep2.count))
79 | 	Total # of service requests packets: $(add $(ip1.count) $(ip2.count))
80 | 	Total # of ICMP packets: $(icmp.count)
81 | 	Total # of dropped packets: $(add $(drop_IF1.count) $(drop_IF2.count) $(drop_IP.count))
82 | 	==================================================================== 
83 | " , stop);
84 | 
85 | 


--------------------------------------------------------------------------------
/click/n9.click:
--------------------------------------------------------------------------------
 1 | // define counter
 2 | counter_from_DmZ, counter_from_PrZ, counter_to_DmZ, counter_to_PrZ :: AverageCounter;
 3 | arp_req1, arp_res1, icmp1, ip1 :: Counter;
 4 | arp_req2, arp_res2, icmp2, ip2 :: Counter;
 5 | drop1, drop2, drop3, drop4 :: Counter;
 6 | 
 7 | AddressInfo(
 8 | 	DmZ		100.0.0.1  	00:00:00:01:00:01,
 9 | 	PrZ		10.0.0.1	00:00:00:00:10:01,
10 | );
11 | 
12 | 
13 | // DmZ to PrZ
14 | from_DmZ :: FromDevice(n9-eth1, METHOD LINUX, SNIFFER false);
15 | to_PrZ :: Queue -> counter_to_PrZ -> ToDevice(n9-eth2);
16 | 
17 | 
18 | // PrZ to DmZ
19 | from_PrZ :: FromDevice(n9-eth2, METHOD LINUX, SNIFFER false);
20 | to_DmZ :: Queue -> counter_to_DmZ -> ToDevice(n9-eth1);
21 | 
22 | 
23 | // Packet classifier
24 | PrZ_classifier, DmZ_classifier :: Classifier(
25 | 	12/0806 20/0001, //[0]ARP request
26 | 	12/0806 20/0002, //[1]ARP reply
27 | 	12/0800, 		 //[2]IP
28 | 	-); 			 //[3]rest
29 | 	
30 | 	
31 | // ARP querier
32 | DmZ_arpq :: ARPQuerier(DmZ);
33 | PrZ_arpq :: ARPQuerier(PrZ);
34 | 
35 | 
36 | // IP packet
37 | ip_to_DmZ :: GetIPAddress(16) -> CheckIPHeader -> [0]DmZ_arpq -> IPPrint("Ip packet to DmZ") -> to_DmZ;
38 | ip_to_PrZ :: GetIPAddress(16) -> CheckIPHeader -> [0]PrZ_arpq -> IPPrint("Ip packet to PrZ") -> to_PrZ;
39 | 
40 | 
41 | // TCP & UDP rewrite 
42 | ip_rewrite :: IPRewriter(pattern 100.0.0.1 20000-65535 - - 0 1,drop);
43 | ip_rewrite[0] -> ip_to_DmZ;
44 | ip_rewrite[1] -> ip_to_PrZ;
45 | 
46 | 
47 | // ICMP echo rewrite
48 | icmp_rewrite :: ICMPPingRewriter(pattern 100.0.0.1 20000-65535 - - 0 1,drop);
49 | icmp_rewrite[0] -> ip_to_DmZ;
50 | icmp_rewrite[1] -> ip_to_PrZ;
51 | 
52 | 
53 | // packet from DmZ
54 | from_DmZ  -> counter_from_DmZ -> DmZ_classifier;
55 | DmZ_classifier[0] -> arp_req1 -> ARPResponder(DmZ) -> to_DmZ; //ARP request
56 | DmZ_classifier[1] -> arp_res1 -> [1]DmZ_arpq; //ARP reply
57 | DmZ_classifier[2] -> ip1 -> Strip(14) -> CheckIPHeader -> IPPrint("IP packet from DmZ") -> DmZ_IP_classifier :: IPClassifier(icmp type echo-reply, udp or tcp, -); //IP packet
58 | 	DmZ_IP_classifier[0] -> icmp2 -> [1]icmp_rewrite;
59 | 	DmZ_IP_classifier[1] -> [1]ip_rewrite;
60 | 	DmZ_IP_classifier[2] -> drop3 -> Discard;
61 | DmZ_classifier[3] -> drop1 -> Discard; //Drop rest packet
62 | 
63 | 
64 | // packet from PrZ
65 | from_PrZ -> counter_from_PrZ -> PrZ_classifier;
66 | PrZ_classifier[0] -> arp_req2 -> ARPResponder(PrZ)-> to_PrZ; //ARP request
67 | PrZ_classifier[1] -> arp_res2 -> [1]PrZ_arpq; //ARP reply
68 | PrZ_classifier[2] -> ip2 -> Strip(14)-> CheckIPHeader -> IPPrint("IP packet from PrZ") -> PrZ_IP_classifier :: IPClassifier(icmp type echo, udp or tcp, -); //IP packet
69 | 	PrZ_IP_classifier[0] -> icmp1 -> [0]icmp_rewrite;
70 | 	PrZ_IP_classifier[1] -> [0]ip_rewrite;
71 | 	PrZ_IP_classifier[2] -> drop4 -> Discard;
72 | PrZ_classifier[3] -> drop2 -> Discard; //Drop rest packet
73 | 
74 | 
75 | // report
76 | DriverManager(wait , print > n9.report "
77 | 	=================== NAPT Report ===================
78 | 	Input Packet Rate (pps): $(add $(counter_from_DmZ.rate) $(counter_from_PrZ.rate))
79 | 	Output Packet Rate(pps): $(add $(counter_to_DmZ.rate)  $(counter_to_PrZ.rate))
80 | 
81 | 	Total # of input packets: $(add $(counter_from_DmZ.count) $(counter_from_PrZ.count))
82 | 	Total # of output packets: $(add $(counter_to_DmZ.count)  $(counter_to_PrZ.count))
83 | 
84 | 	Total # of ARP requests packets: $(add $(arp_req1.count) $(arp_req2.count))
85 | 	Total # of ARP respondes packets: $(add $(arp_res1.count) $(arp_res2.count))
86 | 
87 | 	Total # of service requests packets: $(add $(ip1.count) $(ip2.count))
88 | 	Total # of ICMP packets: $(add $(icmp1.count) $(icmp2.count))
89 | 	Total # of dropped packets: $(add $(drop1.count) $(drop2.count) $(drop3.count) $(drop4.count))
90 | 	================================================== 
91 | " , stop);
92 | 
93 | 


--------------------------------------------------------------------------------
/firewall/Makefile:
--------------------------------------------------------------------------------
 1 | export POX_PATH := /opt/ik2220/pox
 2 | export APP_PATH := ik2220
 3 | export PATHRR := $(CURDIR)
 4 | app:
 5 | 	sudo cp sdn/* $$POX_PATH/ext/
 6 | 	sudo cp nfv/* $$POX_PATH/ext/
 7 | 	sudo python -m compileall $$POX_PATH/ext/
 8 | 	sudo python $$POX_PATH/pox.py l2_firewall --pathExec=$$PATHRR &
 9 | 
10 | clean:
11 | 	-sudo pkill -2 -f click
12 | 	-sudo pkill -9 -f pox
13 | 


--------------------------------------------------------------------------------
/firewall/firewall_parent_proactive.py:
--------------------------------------------------------------------------------
  1 | # Copyright 2011-2012 James McCauley
  2 | #
  3 | # Licensed under the Apache License, Version 2.0 (the "License");
  4 | # you may not use this file except in compliance with the License.
  5 | # You may obtain a copy of the License at:
  6 | #
  7 | #     http://www.apache.org/licenses/LICENSE-2.0
  8 | #
  9 | # Unless required by applicable law or agreed to in writing, software
 10 | # distributed under the License is distributed on an "AS IS" BASIS,
 11 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 12 | # See the License for the specific language governing permissions and
 13 | # limitations under the License.
 14 | 
 15 | """
 16 | An L2 learning switch.
 17 | It is derived from one written live for an SDN crash course.
 18 | It is somwhat similar to NOX's pyswitch in that it installs
 19 | exact-match rules for each flow.
 20 | """
 21 | 
 22 | from pox.core import core
 23 | import pox.openflow.libopenflow_01 as of
 24 | from pox.lib.util import dpid_to_str
 25 | from pox.lib.util import str_to_bool
 26 | from pox.lib.addresses import IPAddr, EthAddr
 27 | import time
 28 | import pox.lib.packet as pkt
 29 | from pox.lib.addresses import EthAddr
 30 | 
 31 | log = core.getLogger()
 32 | 
 33 | # We don't want to flood immediately when a switch connects.
 34 | # Can be overriden on commandline.
 35 | _flood_delay = 0
 36 | 
 37 | class FirewallSwitch (object):
 38 |   def __init__ (self, connection, transparent):
 39 |     # Switch we'll be adding L2 learning switch capabilities to
 40 |     self.connection = connection
 41 |     self.transparent = transparent
 42 | 
 43 |     # Our table
 44 |     self.macToPort = {}
 45 | 
 46 |     # Our firewall table
 47 |     self.firewall = {}
 48 | 
 49 |     # Add a Couple of Rules
 50 |     #self.AddRule('00-00-00-00-00-01',EthAddr('00:00:00:00:00:01'))
 51 |     #self.AddRule('00-00-00-00-00-01',EthAddr('00:00:00:00:00:02'))
 52 |     self.BasicRule(connection)
 53 |     connection.addListeners(self)
 54 | 
 55 |     # We just use this to know when to log a helpful message
 56 |     self.hold_down_expired = _flood_delay == 0
 57 | 
 58 |     #log.debug("Initializing LearningSwitch, transparent=%s",
 59 |     #          str(self.transparent))
 60 | 
 61 | 
 62 |   # function that allows adding firewall rules into the firewall table
 63 |   def AddRule (self, dpidstr, src=0,value=True):
 64 |     self.firewall[(dpidstr,src)]=value
 65 |     log.debug("Adding firewall rule in %s: %s", dpidstr, src)
 66 | 
 67 |   @classmethod
 68 |   def getConnection(self):
 69 |         return self.connection
 70 |   def BasicRule (self, connection):
 71 |     fm = of.ofp_flow_mod()
 72 |     fm.match.in_port = 1
 73 |     fm.priority = 18001
 74 |     fm.match.dl_type = 0x0806
 75 |     fm.actions.append(of.ofp_action_output( port = 2 ) )
 76 |     connection.send( fm )
 77 |     # Allow arp based on dl_type for in_port 2 to output 1
 78 |     fm = of.ofp_flow_mod()
 79 |     fm.match.in_port = 2
 80 |     fm.priority = 18001
 81 |     fm.match.dl_type = 0x0806
 82 |     fm.actions.append(of.ofp_action_output( port = 1 ) )
 83 |     connection.send( fm )
 84 |     # Default drop
 85 |     fm = of.ofp_flow_mod()
 86 |     fm.priority = 1001
 87 |     connection.send( fm )
 88 | 
 89 |   # function that allows deleting firewall rules from the firewall table
 90 |   # Not used DeleteRule
 91 |   def DeleteRule (self, dpidstr, src=0):
 92 |      try:
 93 |        del self.firewall[(dpidstr,src)]
 94 |        log.debug("Deleting firewall rule in %s: %s",
 95 |                  dpidstr, src)
 96 |      except KeyError:
 97 |        log.error("Cannot find in %s: %s",
 98 |                  dpidstr, src)
 99 | 
100 | 
101 |   # check if packet is compliant to rules before proceeding
102 |   def CheckRule (self, dpidstr, src=0):
103 |     try:
104 |       entry = self.firewall[(dpidstr, src)]
105 |       if (entry == True):
106 |         log.debug("Rule (%s) found in %s: FORWARD",
107 |                   src, dpidstr)
108 |       else:
109 |         log.debug("Rule (%s) found in %s: DROP",
110 |                   src, dpidstr)
111 |       return entry
112 |     except KeyError:
113 |       log.debug("Rule (%s) NOT found in %s: DROP",
114 |                 src, dpidstr)
115 |       return False
116 | 
117 |   def _handle_PacketIn (self, event):
118 |     """
119 |     Handle packet in messages from the switch to implement above algorithm.
120 |     """
121 | 
122 |     packet = event.parsed
123 | 
124 |     def flood (message = None):
125 |       """ Floods the packet """
126 |       msg = of.ofp_packet_out()
127 |       if time.time() - self.connection.connect_time >= _flood_delay:
128 |         # Only flood if we've been connected for a little while...
129 | 
130 |         if self.hold_down_expired is False:
131 |           # Oh yes it is!
132 |           self.hold_down_expired = True
133 |           log.info("%s: Flood hold-down expired -- flooding",
134 |               dpid_to_str(event.dpid))
135 | 
136 |         if message is not None: log.debug(message)
137 |         #log.debug("%i: flood %s -> %s", event.dpid,packet.src,packet.dst)
138 |         # OFPP_FLOOD is optional; on some switches you may need to change
139 |         # this to OFPP_ALL.
140 |         msg.actions.append(of.ofp_action_output(port = of.OFPP_FLOOD))
141 |       else:
142 |         pass
143 |         #log.info("Holding down flood for %s", dpid_to_str(event.dpid))
144 |       msg.data = event.ofp
145 |       msg.in_port = event.port
146 |       self.connection.send(msg)
147 | 
148 |     def drop (duration = None):
149 |       """
150 |       Drops this packet and optionally installs a flow to continue
151 |       dropping similar ones for a while
152 |       """
153 |       if duration is not None:
154 |         if not isinstance(duration, tuple):
155 |           duration = (duration,duration)
156 |         msg = of.ofp_flow_mod()
157 |         msg.match = of.ofp_match.from_packet(packet)
158 |         msg.idle_timeout = duration[0]
159 |         msg.hard_timeout = duration[1]
160 |         msg.buffer_id = event.ofp.buffer_id
161 |         self.connection.send(msg)
162 |       elif event.ofp.buffer_id is not None:
163 |         msg = of.ofp_packet_out()
164 |         msg.buffer_id = event.ofp.buffer_id
165 |         msg.in_port = event.port
166 |         self.connection.send(msg)
167 | 
168 |     self.macToPort[packet.src] = event.port # 1
169 | 
170 |     # Get the DPID of the Switch Connection
171 |     dpidstr = dpid_to_str(event.connection.dpid)
172 | 
173 |     packet = event.parsed
174 |     if packet.type == packet.ARP_TYPE:
175 |         log.info("Caught Arp packet")
176 | 
177 |     # Check the Firewall Rules
178 |     if self.CheckRule(dpidstr, packet.src) == False:
179 |       drop()
180 |       return
181 | 
182 |     if not self.transparent: # 2
183 |       if packet.type == packet.LLDP_TYPE or packet.dst.isBridgeFiltered():
184 |         drop() # 2a
185 |         return
186 | 
187 |     if packet.dst.is_multicast:
188 |       flood() # 3a
189 |     else:
190 |       if packet.dst not in self.macToPort: # 4
191 |         flood("Port for %s unknown -- flooding" % (packet.dst,)) # 4a
192 |       else:
193 |         port = self.macToPort[packet.dst]
194 |         if port == event.port: # 5
195 |           # 5a
196 |           log.warning("Same port for packet from %s -> %s on %s.%s.  Drop."
197 |               % (packet.src, packet.dst, dpid_to_str(event.dpid), port))
198 |           drop(10)
199 |           return
200 |         # 6
201 |         log.debug("installing flow for %s.%i -> %s.%i" %
202 |                   (packet.src, event.port, packet.dst, port))
203 |         msg = of.ofp_flow_mod()
204 |         msg.match = of.ofp_match.from_packet(packet, event.port)
205 |         msg.idle_timeout = 10
206 |         msg.hard_timeout = 30
207 |         msg.actions.append(of.ofp_action_output(port = port))
208 |         msg.data = event.ofp # 6a
209 |         self.connection.send(msg)
210 | 
211 | 
212 | class firewall (object):
213 |   """
214 |   Waits for OpenFlow switches to connect and makes them learning switches.
215 |   """
216 |   def __init__ (self, transparent):
217 |     core.openflow.addListeners(self)
218 |     self.transparent = transparent
219 | 
220 |   def _handle_ConnectionUp (self, event):
221 |     log.debug("Connection %s" % (event.connection,))
222 |     #FirewallSwitch(event.connection, self.transparent)
223 |     log.debug("###################DPID#############:%s ", dpid_to_str(event.connection.dpid))
224 |     # Allow arp based on dl_type for in_port 1 to output 2
225 |     #if dpid_to_str(event.connection.dpid) == "00-00-00-00-00-01":
226 | #       return
227 |     if dpid_to_str(event.connection.dpid) == "00-00-00-00-00-0a":
228 |         fw1 = FW1(event.connection, self.transparent)
229 |         fw1.AddRule(event.connection)
230 |     elif dpid_to_str(event.connection.dpid) == "00-00-00-00-00-0b":
231 |         fw2 = FW2(event.connection, self.transparent)
232 |         fw2.AddRule(event.connection)
233 |     else:
234 |         return
235 | 
236 | class FW1 (FirewallSwitch):
237 |     @staticmethod
238 |     def AddRule(connection):
239 |         #connection = connection()
240 |         # ICMP Echo Request in_port 2 out_port 1
241 |         fm = of.ofp_flow_mod()
242 |         fm.match.in_port = 2
243 |         fm.priority = 33001
244 |         fm.match.dl_type = 0x0800
245 |         fm.match.nw_proto=pkt.ipv4.ICMP_PROTOCOL
246 |         fm.match.tp_src = pkt.ICMP.TYPE_ECHO_REQUEST
247 |         fm.actions.append(of.ofp_action_output( port = 1 ) )
248 |         connection.send( fm )
249 |         # ICMP Echo Reply in_port 1 out_port 2
250 |         fm = of.ofp_flow_mod()
251 |         fm.match.in_port = 1
252 |         fm.priority = 33001
253 |         fm.match.dl_type = 0x0800
254 |         fm.match.nw_proto=pkt.ipv4.ICMP_PROTOCOL
255 |         fm.match.tp_src = pkt.ICMP.TYPE_ECHO_REPLY
256 |         fm.actions.append(of.ofp_action_output( port = 2 ) )
257 |         connection.send( fm )
258 | 
259 | class FW2 (FirewallSwitch):
260 |     @staticmethod
261 |     def AddRule(connection):
262 |         # ALLOW default in_port 2 out_port 1
263 |         fm = of.ofp_flow_mod()
264 |         fm.match.in_port = 2
265 |         fm.priority = 33001
266 |         #fm.match.dl_type = 0x0800
267 |         #fm.match.nw_proto=pkt.ipv4.ICMP_PROTOCOL
268 |         #fm.match.tp_src = pkt.ICMP.TYPE_ECHO_REQUEST
269 |         fm.actions.append(of.ofp_action_output( port = 1 ) )
270 |         connection.send( fm )
271 |         # Allow Echo Reply in_port 1 out_port 2
272 |         fm = of.ofp_flow_mod()
273 |         fm.match.in_port = 1
274 |         fm.priority = 33001
275 |         fm.match.dl_type = 0x0800
276 |         fm.match.nw_proto=pkt.ipv4.ICMP_PROTOCOL
277 |         fm.match.tp_src = pkt.ICMP.TYPE_ECHO_REPLY
278 |         fm.actions.append(of.ofp_action_output( port = 2 ) )
279 |         connection.send( fm )
280 | 
281 | def launch (transparent=False, hold_down=_flood_delay):
282 |   """
283 |   Starts an firewall switch.
284 |   """
285 |   try:
286 |     global _flood_delay
287 |     _flood_delay = int(str(hold_down), 10)
288 |     assert _flood_delay >= 0
289 |   except:
290 |     raise RuntimeError("Expected hold-down to be a number")
291 | 
292 |   core.registerNew(firewall, str_to_bool(transparent))
293 | 


--------------------------------------------------------------------------------
/firewall/l2_firewall.py:
--------------------------------------------------------------------------------
  1 | # Copyright 2011-2012 James McCauley
  2 | #
  3 | # Licensed under the Apache License, Version 2.0 (the "License");
  4 | # you may not use this file except in compliance with the License.
  5 | # You may obtain a copy of the License at:
  6 | #
  7 | #     http://www.apache.org/licenses/LICENSE-2.0
  8 | #
  9 | # Unless required by applicable law or agreed to in writing, software
 10 | # distributed under the License is distributed on an "AS IS" BASIS,
 11 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 12 | # See the License for the specific language governing permissions and
 13 | # limitations under the License.
 14 | 
 15 | """
 16 | An L2 learning switch.
 17 | It is derived from one written live for an SDN crash course.
 18 | It is somwhat similar to NOX's pyswitch in that it installs
 19 | exact-match rules for each flow.
 20 | """
 21 | 
 22 | from pox.core import core
 23 | import pox.openflow.libopenflow_01 as of
 24 | from pox.lib.util import dpid_to_str
 25 | from pox.lib.util import str_to_bool
 26 | from pox.lib.addresses import IPAddr, EthAddr
 27 | import time
 28 | import pox.lib.packet as pkt
 29 | from pox.lib.addresses import EthAddr
 30 | from pox.forwarding.l2_learning import LearningSwitch
 31 | import os
 32 | 
 33 | log = core.getLogger()
 34 | rPath = ""
 35 | # We don't want to flood immediately when a switch connects.
 36 | # Can be overriden on commandline.
 37 | _flood_delay = 0
 38 | 
 39 | class FirewallSwitch (object):
 40 |   def __init__ (self, connection, transparent):
 41 |     # Switch we'll be adding L2 learning switch capabilities to
 42 |     self.connection = connection
 43 |     self.transparent = transparent
 44 | 
 45 |     # Our table
 46 |     self.macToPort = {}
 47 | 
 48 |     # Our firewall table
 49 |     self.firewall = {}
 50 | 
 51 |     # Add a Couple of Rules
 52 |     #self.AddRule('00-00-00-00-00-01',EthAddr('00:00:00:00:00:01'))
 53 |     #self.AddRule('00-00-00-00-00-01',EthAddr('00:00:00:00:00:02'))
 54 |     self.BasicRule(connection)
 55 |     connection.addListeners(self)
 56 | 
 57 |     # We just use this to know when to log a helpful message
 58 |     self.hold_down_expired = _flood_delay == 0
 59 | 
 60 |     #log.debug("Initializing LearningSwitch, transparent=%s",
 61 |     #          str(self.transparent))
 62 | 
 63 | 
 64 |   # function that allows adding firewall rules into the firewall table
 65 |   def AddRule (self, dpidstr, src=0,value=True):
 66 |     self.firewall[(dpidstr,src)]=value
 67 |     log.debug("Adding firewall rule in %s: %s", dpidstr, src)
 68 |   
 69 |   @classmethod 
 70 |   def getConnection(self):
 71 | 	return self.connection 
 72 |   def BasicRule (self, connection):
 73 |     fm = of.ofp_flow_mod()
 74 |     fm.match.in_port = 1
 75 |     fm.priority = 18001
 76 |     fm.match.dl_type = 0x0806
 77 |     fm.actions.append(of.ofp_action_output( port = 2 ) )
 78 |     connection.send( fm )
 79 |     # Allow arp based on dl_type for in_port 2 to output 1
 80 |     fm = of.ofp_flow_mod()
 81 |     fm.match.in_port = 2
 82 |     fm.priority = 18001
 83 |     fm.match.dl_type = 0x0806
 84 |     fm.actions.append(of.ofp_action_output( port = 1 ) )
 85 |     connection.send( fm )
 86 |     # Default drop
 87 |     fm = of.ofp_flow_mod()
 88 |     fm.priority = 1001
 89 |     connection.send( fm )
 90 |     
 91 |   # function that allows deleting firewall rules from the firewall table
 92 |   # Not used DeleteRule
 93 |   def DeleteRule (self, dpidstr, src=0):
 94 |      try:
 95 |        del self.firewall[(dpidstr,src)]
 96 |        log.debug("Deleting firewall rule in %s: %s",
 97 |                  dpidstr, src)
 98 |      except KeyError:
 99 |        log.error("Cannot find in %s: %s",
100 |                  dpidstr, src)
101 | 
102 | 
103 |   # check if packet is compliant to rules before proceeding
104 |   def CheckRule (self, dpidstr, src=0):
105 |     try:
106 |       entry = self.firewall[(dpidstr, src)]
107 |       if (entry == True):
108 |         log.debug("Rule (%s) found in %s: FORWARD",
109 |                   src, dpidstr)
110 |       else:
111 |         log.debug("Rule (%s) found in %s: DROP",
112 |                   src, dpidstr)
113 |       return entry
114 |     except KeyError:
115 |       log.debug("Rule (%s) NOT found in %s: DROP",
116 |                 src, dpidstr)
117 |       return False
118 | 
119 |   def _handle_PacketIn (self, event):
120 |     """
121 |     Handle packet in messages from the switch to implement above algorithm.
122 |     """
123 | 
124 |     packet = event.parsed
125 | 
126 |     def flood (message = None):
127 |       """ Floods the packet """
128 |       msg = of.ofp_packet_out()
129 |       if time.time() - self.connection.connect_time >= _flood_delay:
130 |         # Only flood if we've been connected for a little while...
131 | 
132 |         if self.hold_down_expired is False:
133 |           # Oh yes it is!
134 |           self.hold_down_expired = True
135 |           log.info("%s: Flood hold-down expired -- flooding",
136 |               dpid_to_str(event.dpid))
137 | 
138 |         if message is not None: log.debug(message)
139 |         #log.debug("%i: flood %s -> %s", event.dpid,packet.src,packet.dst)
140 |         # OFPP_FLOOD is optional; on some switches you may need to change
141 |         # this to OFPP_ALL.
142 |         msg.actions.append(of.ofp_action_output(port = of.OFPP_FLOOD))
143 |       else:
144 |         pass
145 |         #log.info("Holding down flood for %s", dpid_to_str(event.dpid))
146 |       msg.data = event.ofp
147 |       msg.in_port = event.port
148 |       self.connection.send(msg)
149 | 
150 |     def drop (duration = None):
151 |       """
152 |       Drops this packet and optionally installs a flow to continue
153 |       dropping similar ones for a while
154 |       """
155 |       if duration is not None:
156 |         if not isinstance(duration, tuple):
157 |           duration = (duration,duration)
158 |         msg = of.ofp_flow_mod()
159 |         msg.match = of.ofp_match.from_packet(packet)
160 |         msg.idle_timeout = duration[0]
161 |         msg.hard_timeout = duration[1]
162 |         msg.buffer_id = event.ofp.buffer_id
163 |         self.connection.send(msg)
164 |       elif event.ofp.buffer_id is not None:
165 |         msg = of.ofp_packet_out()
166 |         msg.buffer_id = event.ofp.buffer_id
167 |         msg.in_port = event.port
168 |         self.connection.send(msg)
169 | 
170 |     self.macToPort[packet.src] = event.port # 1
171 | 
172 |     # Get the DPID of the Switch Connection
173 |     dpidstr = dpid_to_str(event.connection.dpid)
174 | 
175 |     packet = event.parsed
176 |     if packet.type == packet.ARP_TYPE:
177 |         log.info("Caught Arp packet")
178 | 
179 |     # Check the Firewall Rules
180 |     if self.CheckRule(dpidstr, packet.src) == False:
181 |       drop()
182 |       return
183 | 
184 |     if not self.transparent: # 2
185 |       if packet.type == packet.LLDP_TYPE or packet.dst.isBridgeFiltered():
186 |         drop() # 2a
187 |         return
188 | 
189 |     if packet.dst.is_multicast:
190 |       flood() # 3a
191 |     else:
192 |       if packet.dst not in self.macToPort: # 4
193 |         flood("Port for %s unknown -- flooding" % (packet.dst,)) # 4a
194 |       else:
195 |         port = self.macToPort[packet.dst]
196 |         if port == event.port: # 5
197 |           # 5a
198 |           log.warning("Same port for packet from %s -> %s on %s.%s.  Drop."
199 |               % (packet.src, packet.dst, dpid_to_str(event.dpid), port))
200 |           drop(10)
201 |           return
202 |         # 6
203 |         log.debug("installing flow for %s.%i -> %s.%i" %
204 |                   (packet.src, event.port, packet.dst, port))
205 |         msg = of.ofp_flow_mod()
206 |         msg.match = of.ofp_match.from_packet(packet, event.port)
207 |         msg.idle_timeout = 10
208 |         msg.hard_timeout = 30
209 |         msg.actions.append(of.ofp_action_output(port = port))
210 |         msg.data = event.ofp # 6a
211 |         self.connection.send(msg)
212 | 
213 | 
214 | class firewall (object):
215 |   """
216 |   Waits for OpenFlow switches to connect and makes them learning switches.
217 |   """
218 |   def __init__ (self, transparent):
219 |     core.openflow.addListeners(self)
220 |     self.transparent = transparent
221 | 
222 |   def _handle_ConnectionUp (self, event):
223 |     global rPath
224 |     log.debug("Connection %s" % (event.connection,))
225 |     log.debug("report rPath %s ", rPath)
226 |     #FirewallSwitch(event.connection, self.transparent)
227 |     log.debug("###################DPID#############:%s ", dpid_to_str(event.connection.dpid)) 
228 |     # Allow arp based on dl_type for in_port 1 to output 2
229 |     #if dpid_to_str(event.connection.dpid) == "00-00-00-00-00-01":
230 | #	return
231 |     if dpid_to_str(event.connection.dpid) == "00-00-00-00-00-0a":
232 |     	fw1 = FW1(event.connection, self.transparent)
233 |     	fw1.AddRule(event.connection)
234 |     elif dpid_to_str(event.connection.dpid) == "00-00-00-00-00-0b":
235 |         fw2 = FW2(event.connection, self.transparent)
236 |         fw2.AddRule(event.connection)
237 |     if dpid_to_str(event.connection.dpid) == "00-00-00-00-00-08":
238 | 	os.system('sudo /usr/local/bin/click /opt/ik2220/pox/ext/ids.click rPath='+rPath+' &')
239 |     elif dpid_to_str(event.connection.dpid) == "00-00-00-00-00-06":
240 |         os.system('sudo /usr/local/bin/click /opt/ik2220/pox/ext/lb_update.click LB=lb6 VIP=100.0.0.25 prt_n=53 prt=udp port1=eth2 port2=eth1 DIP_1=100.0.0.20 DIP_2=100.0.0.21 DIP_3=100.0.0.22 rPath='+rPath+' &')
241 |     elif dpid_to_str(event.connection.dpid) == "00-00-00-00-00-07":
242 |         os.system('sudo /usr/local/bin/click /opt/ik2220/pox/ext/lb_update.click LB=lb7 VIP=100.0.0.45 prt_n=80 prt=tcp port1=eth1 port2=eth2 DIP_1=100.0.0.40 DIP_2=100.0.0.41 DIP_3=100.0.0.42 rPath='+rPath+' &')
243 |     elif dpid_to_str(event.connection.dpid) == "00-00-00-00-00-09":
244 | 	#os.system('sudo /usr/local/bin/click /opt/ik2220/click/n9.click &')
245 |         os.system('sudo /usr/local/bin/click /opt/ik2220/pox/ext/napt.click rPath='+rPath+' &')
246 |     else:
247 | 	LearningSwitch(event.connection, False)
248 | 
249 | class FW1 (FirewallSwitch):
250 |     @staticmethod	
251 |     def AddRule(connection):
252 | 	#connection = connection()
253 | 	# ICMP Echo Request in_port 2 out_port 1
254 | 	fm = of.ofp_flow_mod()
255 |     	fm.match.in_port = 2
256 |     	fm.priority = 33001
257 |     	fm.match.dl_type = 0x0800
258 | 	fm.match.nw_proto=pkt.ipv4.ICMP_PROTOCOL
259 | 	fm.match.tp_src = pkt.ICMP.TYPE_ECHO_REQUEST
260 |     	fm.actions.append(of.ofp_action_output( port = 1 ) )
261 | 	connection.send( fm )
262 | 	# ICMP Echo Reply in_port 1 out_port 2
263 |         fm = of.ofp_flow_mod()
264 |         fm.match.in_port = 1
265 |         fm.priority = 33001
266 |         fm.match.dl_type = 0x0800
267 |         fm.match.nw_proto=pkt.ipv4.ICMP_PROTOCOL
268 | 	fm.match.tp_src = pkt.ICMP.TYPE_ECHO_REPLY
269 |         fm.actions.append(of.ofp_action_output( port = 2 ) )
270 | 	connection.send( fm )
271 | 	#Allow icmp echo request for SLBs in_port 1
272 |         fm = init_fm( 1, 2)
273 |         fm.match.tp_src = pkt.ICMP.TYPE_ECHO_REQUEST
274 |         fm.match.nw_dst='100.0.0.25'
275 |         connection.send(fm)
276 |         fm = init_fm( 1, 2)
277 |         fm.match.tp_src = pkt.ICMP.TYPE_ECHO_REQUEST
278 |         fm.match.nw_dst='100.0.0.45'
279 |         connection.send(fm)
280 |         #Allow ICMP reply from SLBs in_port 2 out_port 1
281 |         fm = init_fm( 2, 1)
282 |         fm.match.tp_src = pkt.ICMP.TYPE_ECHO_REPLY
283 |         connection.send(fm)
284 | 	#Allow DNS Request
285 | 	fm = of.ofp_flow_mod()
286 |         fm.match.in_port = 1
287 |         fm.priority = 33001
288 | 	fm.match.dl_type = 0x0800
289 | 	fm.match.nw_proto=pkt.ipv4.UDP_PROTOCOL
290 | 	fm.match.tp_dst = 53
291 |         fm.actions.append(of.ofp_action_output( port = 2 ) )
292 |         connection.send( fm )
293 | 	#Allow DNS reply
294 | 	fm = of.ofp_flow_mod()
295 |         fm.match.in_port = 2
296 |         fm.priority = 33001
297 | 	fm.match.dl_type = 0x0800
298 |         fm.match.nw_proto=pkt.ipv4.UDP_PROTOCOL
299 |         fm.match.tp_src = 53
300 |         fm.actions.append(of.ofp_action_output( port = 1 ) )
301 |         connection.send( fm )
302 | 	#Allow HTTP Request
303 | 	fm = of.ofp_flow_mod()
304 |         fm.match.in_port = 1
305 |         fm.priority = 33001
306 |         fm.match.dl_type = 0x0800
307 |         fm.match.nw_proto=pkt.ipv4.TCP_PROTOCOL
308 |         fm.match.tp_dst = 80
309 |         fm.actions.append(of.ofp_action_output( port = 2 ) )
310 |         connection.send( fm )
311 | 	#Allow HTTP response
312 | 	fm = of.ofp_flow_mod()
313 |         fm.match.in_port = 2
314 |         fm.priority = 33001
315 |         fm.match.dl_type = 0x0800
316 |         fm.match.nw_proto=pkt.ipv4.TCP_PROTOCOL
317 |         fm.match.tp_src = 80
318 |         fm.actions.append(of.ofp_action_output( port = 1 ) )
319 |         connection.send( fm )
320 |       	
321 | class FW2 (FirewallSwitch):
322 |     @staticmethod
323 |     def AddRule(connection):
324 | 	# ALLOW default in_port 2 out_port 1
325 |         fm = of.ofp_flow_mod()
326 |         fm.match.in_port = 2
327 |         fm.priority = 33001
328 |         #fm.match.dl_type = 0x0800
329 |         #fm.match.nw_proto=pkt.ipv4.ICMP_PROTOCOL
330 |         #fm.match.tp_src = pkt.ICMP.TYPE_ECHO_REQUEST
331 |         fm.actions.append(of.ofp_action_output( port = 1 ) )
332 |         connection.send( fm )
333 |         # Allow Echo Reply in_port 1 out_port 2
334 |         fm = of.ofp_flow_mod()
335 |         fm.match.in_port = 1
336 |         fm.priority = 33001
337 |         fm.match.dl_type = 0x0800
338 |         fm.match.nw_proto=pkt.ipv4.ICMP_PROTOCOL
339 |         fm.match.tp_src = pkt.ICMP.TYPE_ECHO_REPLY
340 |         fm.actions.append(of.ofp_action_output( port = 2 ) )
341 |         connection.send( fm )
342 | 	#Allow incoming DNS Response
343 | 	fm = of.ofp_flow_mod()
344 |         fm.match.in_port = 1
345 |         fm.priority = 55001
346 |         fm.match.dl_type = 0x0800
347 |         fm.match.nw_proto=pkt.ipv4.UDP_PROTOCOL
348 |         fm.match.tp_src = 53
349 |         fm.actions.append(of.ofp_action_output( port = 2 ) )
350 |         connection.send( fm )
351 | 	#Allow HTTP incoming response
352 | 	fm = of.ofp_flow_mod()
353 |         fm.match.in_port = 1
354 |         fm.priority = 55001
355 |         fm.match.dl_type = 0x0800
356 |         fm.match.nw_proto=pkt.ipv4.TCP_PROTOCOL
357 |         fm.match.tp_src = 80
358 |         fm.actions.append(of.ofp_action_output( port = 2 ) )
359 |         connection.send( fm )
360 | 	#Block ICMP request for dmz
361 | 	#fm = of.ofp_flow_mod()
362 |         #fm.match.in_port = 2
363 |         #fm.priority = 55001
364 |         #fm.match.dl_type = 0x0800
365 |         #fm.match.nw_proto=pkt.ipv4.ICMP_PROTOCOL
366 |         #fm.match.tp_src = pkt.ICMP.TYPE_ECHO_REQUEST
367 | 	#fm.match.nw_dst='100.0.0.20'
368 |         #connection.send( fm )
369 | 	#fm = of.ofp_flow_mod()
370 |         #fm.match.in_port = 2
371 |         #fm.priority = 55001
372 |         #fm.match.dl_type = 0x0800
373 |         #fm.match.nw_proto=pkt.ipv4.ICMP_PROTOCOL
374 |         #fm.match.tp_src = pkt.ICMP.TYPE_ECHO_REQUEST
375 |         #fm.match.nw_dst='100.0.0.40'
376 |         #connection.send( fm )
377 | 	connection.send( block_icmp_ip('100.0.0.20') )
378 | 	connection.send( block_icmp_ip('100.0.0.21') )
379 | 	connection.send( block_icmp_ip('100.0.0.22') )
380 | 	connection.send( block_icmp_ip('100.0.0.40') )
381 | 	connection.send( block_icmp_ip('100.0.0.41') )
382 | 	connection.send( block_icmp_ip('100.0.0.42') )
383 | 
384 | def block_icmp_ip(ip):
385 | 	fm = of.ofp_flow_mod()
386 |         fm.match.in_port = 2
387 |         fm.priority = 55001
388 |         fm.match.dl_type = 0x0800
389 |         fm.match.nw_proto=pkt.ipv4.ICMP_PROTOCOL
390 |         fm.match.tp_src = pkt.ICMP.TYPE_ECHO_REQUEST
391 |         fm.match.nw_dst=ip
392 | 	return fm
393 | 
394 | def init_fm(in_port, out_port):
395 | 	fm = of.ofp_flow_mod()
396 |         fm.match.in_port = in_port
397 |         fm.priority = 33001
398 |         fm.match.dl_type = 0x0800
399 |         fm.match.nw_proto=pkt.ipv4.ICMP_PROTOCOL
400 |         #fm.match.tp_src = tp_src
401 |         fm.actions.append(of.ofp_action_output( port = out_port ) )
402 |         return fm
403 | 
404 | def launch (pathExec, transparent=False, hold_down=_flood_delay):
405 |   """
406 |   Starts an firewall switch.
407 |   """
408 |   try:
409 |     global _flood_delay
410 |     global rPath
411 |     print("Pathexec:"+pathExec)
412 |     rPath = pathExec
413 |     _flood_delay = int(str(hold_down), 10)
414 |     assert _flood_delay >= 0
415 |   except:
416 |     raise RuntimeError("Expected hold-down to be a number")
417 | 
418 |   core.registerNew(firewall, str_to_bool(transparent))
419 | 


--------------------------------------------------------------------------------
/firewall/l2_firewall_example.py:
--------------------------------------------------------------------------------
  1 | # Copyright 2011-2012 James McCauley
  2 | #
  3 | # Licensed under the Apache License, Version 2.0 (the "License");
  4 | # you may not use this file except in compliance with the License.
  5 | # You may obtain a copy of the License at:
  6 | #
  7 | #     http://www.apache.org/licenses/LICENSE-2.0
  8 | #
  9 | # Unless required by applicable law or agreed to in writing, software
 10 | # distributed under the License is distributed on an "AS IS" BASIS,
 11 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 12 | # See the License for the specific language governing permissions and
 13 | # limitations under the License.
 14 | 
 15 | """
 16 | An L2 learning switch.
 17 | 
 18 | It is derived from one written live for an SDN crash course.
 19 | It is somwhat similar to NOX's pyswitch in that it installs
 20 | exact-match rules for each flow.
 21 | """
 22 | 
 23 | from pox.core import core
 24 | import pox.openflow.libopenflow_01 as of
 25 | from pox.lib.util import dpid_to_str
 26 | from pox.lib.util import str_to_bool
 27 | import time
 28 | 
 29 | from pox.lib.addresses import EthAddr
 30 | 
 31 | log = core.getLogger()
 32 | 
 33 | # We don't want to flood immediately when a switch connects.
 34 | # Can be overriden on commandline.
 35 | _flood_delay = 0
 36 | 
 37 | class LearningSwitch (object):
 38 |   """
 39 |   The learning switch "brain" associated with a single OpenFlow switch.
 40 | 
 41 |   When we see a packet, we'd like to output it on a port which will
 42 |   eventually lead to the destination.  To accomplish this, we build a
 43 |   table that maps addresses to ports.
 44 | 
 45 |   We populate the table by observing traffic.  When we see a packet
 46 |   from some source coming from some port, we know that source is out
 47 |   that port.
 48 | 
 49 |   When we want to forward traffic, we look up the desintation in our
 50 |   table.  If we don't know the port, we simply send the message out
 51 |   all ports except the one it came in on.  (In the presence of loops,
 52 |   this is bad!).
 53 | 
 54 |   In short, our algorithm looks like this:
 55 | 
 56 |   For each packet from the switch:
 57 |   1) Use source address and switch port to update address/port table
 58 |   2) Is transparent = False and either Ethertype is LLDP or the packet's
 59 |      destination address is a Bridge Filtered address?
 60 |      Yes:
 61 |         2a) Drop packet -- don't forward link-local traffic (LLDP, 802.1x)
 62 |             DONE
 63 |   3) Is destination multicast?
 64 |      Yes:
 65 |         3a) Flood the packet
 66 |             DONE
 67 |   4) Port for destination address in our address/port table?
 68 |      No:
 69 |         4a) Flood the packet
 70 |             DONE
 71 |   5) Is output port the same as input port?
 72 |      Yes:
 73 |         5a) Drop packet and similar ones for a while
 74 |   6) Install flow table entry in the switch so that this
 75 |      flow goes out the appopriate port
 76 |      6a) Send the packet out appropriate port
 77 |   """
 78 |   def __init__ (self, connection, transparent):
 79 |     # Switch we'll be adding L2 learning switch capabilities to
 80 |     self.connection = connection
 81 |     self.transparent = transparent
 82 | 
 83 |     # Our table
 84 |     self.macToPort = {}
 85 | 
 86 |     # Our firewall table
 87 |     self.firewall = {}
 88 | 
 89 |     # Add a Couple of Rules
 90 |     self.AddRule('00-00-00-00-00-01',EthAddr('00:00:00:00:00:01'))
 91 |     self.AddRule('00-00-00-00-00-01',EthAddr('00:00:00:00:00:02'))
 92 | 
 93 |     # We want to hear PacketIn messages, so we listen
 94 |     # to the connection
 95 |     connection.addListeners(self)
 96 | 
 97 |     # We just use this to know when to log a helpful message
 98 |     self.hold_down_expired = _flood_delay == 0
 99 | 
100 |     #log.debug("Initializing LearningSwitch, transparent=%s",
101 |     #          str(self.transparent))
102 | 
103 | 
104 |   # function that allows adding firewall rules into the firewall table
105 |   def AddRule (self, dpidstr, src=0,value=True):
106 |     self.firewall[(dpidstr,src)]=value
107 |     log.debug("Adding firewall rule in %s: %s", dpidstr, src) 
108 | 
109 |   # function that allows deleting firewall rules from the firewall table
110 |   def DeleteRule (self, dpidstr, src=0):
111 |      try:
112 |        del self.firewall[(dpidstr,src)]
113 |        log.debug("Deleting firewall rule in %s: %s",
114 |                  dpidstr, src)
115 |      except KeyError:
116 |        log.error("Cannot find in %s: %s",
117 |                  dpidstr, src)
118 | 
119 | 
120 |   # check if packet is compliant to rules before proceeding
121 |   def CheckRule (self, dpidstr, src=0):
122 |     try:
123 |       entry = self.firewall[(dpidstr, src)]
124 |       if (entry == True):
125 |         log.debug("Rule (%s) found in %s: FORWARD",
126 |                   src, dpidstr)
127 |       else:
128 |         log.debug("Rule (%s) found in %s: DROP",
129 |                   src, dpidstr)
130 |       return entry
131 |     except KeyError:
132 |       log.debug("Rule (%s) NOT found in %s: DROP",
133 |                 src, dpidstr)
134 |       return False
135 | 
136 |   def _handle_PacketIn (self, event):
137 |     """
138 |     Handle packet in messages from the switch to implement above algorithm.
139 |     """
140 | 
141 |     packet = event.parsed
142 | 
143 |     def flood (message = None):
144 |       """ Floods the packet """
145 |       msg = of.ofp_packet_out()
146 |       if time.time() - self.connection.connect_time >= _flood_delay:
147 |         # Only flood if we've been connected for a little while...
148 | 
149 |         if self.hold_down_expired is False:
150 |           # Oh yes it is!
151 |           self.hold_down_expired = True
152 |           log.info("%s: Flood hold-down expired -- flooding",
153 |               dpid_to_str(event.dpid))
154 | 
155 |         if message is not None: log.debug(message)
156 |         #log.debug("%i: flood %s -> %s", event.dpid,packet.src,packet.dst)
157 |         # OFPP_FLOOD is optional; on some switches you may need to change
158 |         # this to OFPP_ALL.
159 |         msg.actions.append(of.ofp_action_output(port = of.OFPP_FLOOD))
160 |       else:
161 |         pass
162 |         #log.info("Holding down flood for %s", dpid_to_str(event.dpid))
163 |       msg.data = event.ofp
164 |       msg.in_port = event.port
165 |       self.connection.send(msg)
166 | 
167 |     def drop (duration = None):
168 |       """
169 |       Drops this packet and optionally installs a flow to continue
170 |       dropping similar ones for a while
171 |       """
172 |       if duration is not None:
173 |         if not isinstance(duration, tuple):
174 |           duration = (duration,duration)
175 |         msg = of.ofp_flow_mod()
176 |         msg.match = of.ofp_match.from_packet(packet)
177 |         msg.idle_timeout = duration[0]
178 |         msg.hard_timeout = duration[1]
179 |         msg.buffer_id = event.ofp.buffer_id
180 |         self.connection.send(msg)
181 |       elif event.ofp.buffer_id is not None:
182 |         msg = of.ofp_packet_out()
183 |         msg.buffer_id = event.ofp.buffer_id
184 |         msg.in_port = event.port
185 |         self.connection.send(msg)
186 | 
187 |     self.macToPort[packet.src] = event.port # 1
188 | 
189 |     # Get the DPID of the Switch Connection
190 |     dpidstr = dpid_to_str(event.connection.dpid)
191 | 
192 |     # Check the Firewall Rules
193 |     if self.CheckRule(dpidstr, packet.src) == False:
194 |       drop()
195 |       return
196 | 
197 |     if not self.transparent: # 2
198 |       if packet.type == packet.LLDP_TYPE or packet.dst.isBridgeFiltered():
199 |         drop() # 2a
200 |         return
201 | 
202 |     if packet.dst.is_multicast:
203 |       flood() # 3a
204 |     else:
205 |       if packet.dst not in self.macToPort: # 4
206 |         flood("Port for %s unknown -- flooding" % (packet.dst,)) # 4a
207 |       else:
208 |         port = self.macToPort[packet.dst]
209 |         if port == event.port: # 5
210 |           # 5a
211 |           log.warning("Same port for packet from %s -> %s on %s.%s.  Drop."
212 |               % (packet.src, packet.dst, dpid_to_str(event.dpid), port))
213 |           drop(10)
214 |           return
215 |         # 6
216 |         log.debug("installing flow for %s.%i -> %s.%i" %
217 |                   (packet.src, event.port, packet.dst, port))
218 |         msg = of.ofp_flow_mod()
219 |         msg.match = of.ofp_match.from_packet(packet, event.port)
220 |         msg.idle_timeout = 10
221 |         msg.hard_timeout = 30
222 |         msg.actions.append(of.ofp_action_output(port = port))
223 |         msg.data = event.ofp # 6a
224 |         self.connection.send(msg)
225 | 
226 | 
227 | class l2_learning (object):
228 |   """
229 |   Waits for OpenFlow switches to connect and makes them learning switches.
230 |   """
231 |   def __init__ (self, transparent):
232 |     core.openflow.addListeners(self)
233 |     self.transparent = transparent
234 | 
235 |   def _handle_ConnectionUp (self, event):
236 |     log.debug("Connection %s" % (event.connection,))
237 |     LearningSwitch(event.connection, self.transparent)
238 | 
239 | 
240 | def launch (transparent=False, hold_down=_flood_delay):
241 |   """
242 |   Starts an L2 learning switch.
243 |   """
244 |   try:
245 |     global _flood_delay
246 |     _flood_delay = int(str(hold_down), 10)
247 |     assert _flood_delay >= 0
248 |   except:
249 |     raise RuntimeError("Expected hold-down to be a number")
250 | 
251 |   core.registerNew(l2_learning, str_to_bool(transparent))
252 | 


--------------------------------------------------------------------------------
/firewall/l2_learning.py:
--------------------------------------------------------------------------------
  1 | # Copyright 2011-2012 James McCauley
  2 | #
  3 | # Licensed under the Apache License, Version 2.0 (the "License");
  4 | # you may not use this file except in compliance with the License.
  5 | # You may obtain a copy of the License at:
  6 | #
  7 | #     http://www.apache.org/licenses/LICENSE-2.0
  8 | #
  9 | # Unless required by applicable law or agreed to in writing, software
 10 | # distributed under the License is distributed on an "AS IS" BASIS,
 11 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 12 | # See the License for the specific language governing permissions and
 13 | # limitations under the License.
 14 | 
 15 | """
 16 | An L2 learning switch.
 17 | 
 18 | It is derived from one written live for an SDN crash course.
 19 | It is somwhat similar to NOX's pyswitch in that it installs
 20 | exact-match rules for each flow.
 21 | """
 22 | 
 23 | from pox.core import core
 24 | import pox.openflow.libopenflow_01 as of
 25 | from pox.lib.util import dpid_to_str
 26 | from pox.lib.util import str_to_bool
 27 | import time
 28 | 
 29 | log = core.getLogger()
 30 | 
 31 | # We don't want to flood immediately when a switch connects.
 32 | # Can be overriden on commandline.
 33 | _flood_delay = 0
 34 | 
 35 | class LearningSwitch (object):
 36 |   """
 37 |   The learning switch "brain" associated with a single OpenFlow switch.
 38 | 
 39 |   When we see a packet, we'd like to output it on a port which will
 40 |   eventually lead to the destination.  To accomplish this, we build a
 41 |   table that maps addresses to ports.
 42 | 
 43 |   We populate the table by observing traffic.  When we see a packet
 44 |   from some source coming from some port, we know that source is out
 45 |   that port.
 46 | 
 47 |   When we want to forward traffic, we look up the desintation in our
 48 |   table.  If we don't know the port, we simply send the message out
 49 |   all ports except the one it came in on.  (In the presence of loops,
 50 |   this is bad!).
 51 | 
 52 |   In short, our algorithm looks like this:
 53 | 
 54 |   For each packet from the switch:
 55 |   1) Use source address and switch port to update address/port table
 56 |   2) Is transparent = False and either Ethertype is LLDP or the packet's
 57 |      destination address is a Bridge Filtered address?
 58 |      Yes:
 59 |         2a) Drop packet -- don't forward link-local traffic (LLDP, 802.1x)
 60 |             DONE
 61 |   3) Is destination multicast?
 62 |      Yes:
 63 |         3a) Flood the packet
 64 |             DONE
 65 |   4) Port for destination address in our address/port table?
 66 |      No:
 67 |         4a) Flood the packet
 68 |             DONE
 69 |   5) Is output port the same as input port?
 70 |      Yes:
 71 |         5a) Drop packet and similar ones for a while
 72 |   6) Install flow table entry in the switch so that this
 73 |      flow goes out the appopriate port
 74 |      6a) Send the packet out appropriate port
 75 |   """
 76 |   def __init__ (self, connection, transparent):
 77 |     # Switch we'll be adding L2 learning switch capabilities to
 78 |     self.connection = connection
 79 |     self.transparent = transparent
 80 | 
 81 |     # Our table
 82 |     self.macToPort = {}
 83 | 
 84 |     # We want to hear PacketIn messages, so we listen
 85 |     # to the connection
 86 |     connection.addListeners(self)
 87 | 
 88 |     # We just use this to know when to log a helpful message
 89 |     self.hold_down_expired = _flood_delay == 0
 90 | 
 91 |     #log.debug("Initializing LearningSwitch, transparent=%s",
 92 |     #          str(self.transparent))
 93 | 
 94 |   def _handle_PacketIn (self, event):
 95 |     """
 96 |     Handle packet in messages from the switch to implement above algorithm.
 97 |     """
 98 | 
 99 |     packet = event.parsed
100 | 
101 |     def flood (message = None):
102 |       """ Floods the packet """
103 |       msg = of.ofp_packet_out()
104 |       if time.time() - self.connection.connect_time >= _flood_delay:
105 |         # Only flood if we've been connected for a little while...
106 | 
107 |         if self.hold_down_expired is False:
108 |           # Oh yes it is!
109 |           self.hold_down_expired = True
110 |           log.info("%s: Flood hold-down expired -- flooding",
111 |               dpid_to_str(event.dpid))
112 | 
113 |         if message is not None: log.debug(message)
114 |         #log.debug("%i: flood %s -> %s", event.dpid,packet.src,packet.dst)
115 |         # OFPP_FLOOD is optional; on some switches you may need to change
116 |         # this to OFPP_ALL.
117 |         msg.actions.append(of.ofp_action_output(port = of.OFPP_FLOOD))
118 |       else:
119 |         pass
120 |         #log.info("Holding down flood for %s", dpid_to_str(event.dpid))
121 |       msg.data = event.ofp
122 |       msg.in_port = event.port
123 |       self.connection.send(msg)
124 | 
125 |     def drop (duration = None):
126 |       """
127 |       Drops this packet and optionally installs a flow to continue
128 |       dropping similar ones for a while
129 |       """
130 |       if duration is not None:
131 |         if not isinstance(duration, tuple):
132 |           duration = (duration,duration)
133 |         msg = of.ofp_flow_mod()
134 |         msg.match = of.ofp_match.from_packet(packet)
135 |         msg.idle_timeout = duration[0]
136 |         msg.hard_timeout = duration[1]
137 |         msg.buffer_id = event.ofp.buffer_id
138 |         self.connection.send(msg)
139 |       elif event.ofp.buffer_id is not None:
140 |         msg = of.ofp_packet_out()
141 |         msg.buffer_id = event.ofp.buffer_id
142 |         msg.in_port = event.port
143 |         self.connection.send(msg)
144 | 
145 |     self.macToPort[packet.src] = event.port # 1
146 | 
147 |     if not self.transparent: # 2
148 |       if packet.type == packet.LLDP_TYPE or packet.dst.isBridgeFiltered():
149 |         drop() # 2a
150 |         return
151 | 
152 |     if packet.dst.is_multicast:
153 |       flood() # 3a
154 |     else:
155 |       if packet.dst not in self.macToPort: # 4
156 |         flood("Port for %s unknown -- flooding" % (packet.dst,)) # 4a
157 |       else:
158 |         port = self.macToPort[packet.dst]
159 |         if port == event.port: # 5
160 |           # 5a
161 |           log.warning("Same port for packet from %s -> %s on %s.%s.  Drop."
162 |               % (packet.src, packet.dst, dpid_to_str(event.dpid), port))
163 |           drop(10)
164 |           return
165 |         # 6
166 |         log.debug("installing flow for %s.%i -> %s.%i" %
167 |                   (packet.src, event.port, packet.dst, port))
168 |         msg = of.ofp_flow_mod()
169 |         msg.match = of.ofp_match.from_packet(packet, event.port)
170 |         msg.idle_timeout = 10
171 |         msg.hard_timeout = 30
172 |         msg.actions.append(of.ofp_action_output(port = port))
173 |         msg.data = event.ofp # 6a
174 |         self.connection.send(msg)
175 | 
176 | 
177 | class l2_learning (object):
178 |   """
179 |   Waits for OpenFlow switches to connect and makes them learning switches.
180 |   """
181 |   def __init__ (self, transparent):
182 |     core.openflow.addListeners(self)
183 |     self.transparent = transparent
184 | 
185 |   def _handle_ConnectionUp (self, event):
186 |     log.debug("Connection %s" % (event.connection,))
187 |     LearningSwitch(event.connection, self.transparent)
188 |     if dpid_to_str(event.connection.dpid) == "00-00-00-00-00-01":
189 |         return    
190 | 
191 | 
192 | def launch (transparent=False, hold_down=_flood_delay):
193 |   """
194 |   Starts an L2 learning switch.
195 |   """
196 |   try:
197 |     global _flood_delay
198 |     _flood_delay = int(str(hold_down), 10)
199 |     assert _flood_delay >= 0
200 |   except:
201 |     raise RuntimeError("Expected hold-down to be a number")
202 | 
203 |   core.registerNew(l2_learning, str_to_bool(transparent))
204 | 


--------------------------------------------------------------------------------
/ik2220-assign-phase2-team5.tar.gz:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/shrin18/SDNProject/824ac53287c27f18df2e4022693fd0ca8dd5fab7/ik2220-assign-phase2-team5.tar.gz


--------------------------------------------------------------------------------
/shrinish.txt:
--------------------------------------------------------------------------------
1 | 
2 | 


--------------------------------------------------------------------------------
/src/dns_server.py:
--------------------------------------------------------------------------------
  1 | #DNS Server
  2 | 
  3 | import socket, glob, json
  4 | 
  5 | port = 53
  6 | ip = '127.0.0.1'
  7 | 
  8 | sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
  9 | sock.bind((ip, port))
 10 | 
 11 | 
 12 | def load_zones():
 13 | 
 14 |     jsonzone = {}
 15 |     zonefiles = glob.glob('zones/*.zone')
 16 | 
 17 |     for zone in zonefiles:
 18 |         with open(zone) as zonedata:
 19 |             data = json.load(zonedata)
 20 |             zonename = data["$origin"]
 21 |             jsonzone[zonename] = data
 22 |     return jsonzone
 23 | 
 24 | zonedata = load_zones()
 25 | 
 26 | def getflags(flags):
 27 | 
 28 |     byte1 = bytes(flags[:1])
 29 |     byte2 = bytes(flags[1:2])
 30 | 
 31 |     rflags = ''
 32 | 
 33 |     QR = '1'
 34 | 
 35 |     OPCODE = ''
 36 |     for bit in range(1,5):
 37 |         OPCODE += str(ord(byte1)&(1<<bit))
 38 | 
 39 |     AA = '1'
 40 | 
 41 |     TC = '0'
 42 | 
 43 |     RD = '0'
 44 | 
 45 |     # Byte 2
 46 | 
 47 |     RA = '0'
 48 | 
 49 |     Z = '000'
 50 | 
 51 |     RCODE = '0000'
 52 | 
 53 |     return int(QR+OPCODE+AA+TC+RD, 2).to_bytes(1, byteorder='big')+int(RA+Z+RCODE, 2).to_bytes(1, byteorder='big')
 54 | 
 55 | def getquestiondomain(data):
 56 | 
 57 |     state = 0
 58 |     expectedlength = 0
 59 |     domainstring = ''
 60 |     domainparts = []
 61 |     x = 0
 62 |     y = 0
 63 |     for byte in data:
 64 |         if state == 1:
 65 |             if byte != 0:
 66 |                 domainstring += chr(byte)
 67 |             x += 1
 68 |             if x == expectedlength:
 69 |                 domainparts.append(domainstring)
 70 |                 domainstring = ''
 71 |                 state = 0
 72 |                 x = 0
 73 |             if byte == 0:
 74 |                 domainparts.append(domainstring)
 75 |                 break
 76 |         else:
 77 |             state = 1
 78 |             expectedlength = byte
 79 |         y += 1
 80 | 
 81 |     questiontype = data[y:y+2]
 82 | 
 83 |     return (domainparts, questiontype)
 84 | 
 85 | def getzone(domain):
 86 |     global zonedata
 87 | 
 88 |     zone_name = '.'.join(domain)
 89 |     
 90 |     return zonedata[zone_name]
 91 | 
 92 | 
 93 | def getrecs(data):
 94 |     domain, questiontype = getquestiondomain(data)
 95 |     qt = ''
 96 |     if questiontype == b'\x00\x01':
 97 |         qt = 'a'
 98 | 
 99 |     zone = getzone(domain)
100 | 
101 |     return (zone[qt], qt, domain)
102 | 
103 | def buildquestion(domainname, rectype):
104 |     qbytes = b''
105 | 
106 |     for part in domainname:
107 |         length = len(part)
108 |         qbytes += bytes([length])
109 | 
110 |         for char in part:
111 |             qbytes += ord(char).to_bytes(1, byteorder='big')
112 | 
113 |     if rectype == 'a':
114 |         qbytes += (1).to_bytes(2, byteorder='big')
115 | 
116 |     qbytes += (1).to_bytes(2, byteorder='big')
117 | 
118 |     return qbytes
119 | 
120 | def rectobytes(domainname, rectype, recttl, recval):
121 | 
122 |     rbytes = b'\xc0\x0c'
123 | 
124 |     if rectype == 'a':
125 |         rbytes = rbytes + bytes([0]) + bytes([1])
126 | 
127 |     rbytes = rbytes + bytes([0]) + bytes([1])
128 | 
129 |     rbytes += int(recttl).to_bytes(4, byteorder='big')
130 | 
131 |     if rectype == 'a':
132 |         rbytes = rbytes + bytes([0]) + bytes([4])
133 | 
134 |         for part in recval.split('.'):
135 |             rbytes += bytes([int(part)])
136 |     return rbytes
137 | 
138 | def buildresponse(data):
139 | 
140 |     # Transaction ID
141 |     TransactionID = data[:2]
142 | 
143 |     # Get the flags
144 |     Flags = getflags(data[2:4])
145 | 
146 |     # Question Count
147 |     QDCOUNT = b'\x00\x01'
148 | 
149 |     # Answer Count
150 |     ANCOUNT = len(getrecs(data[12:])[0]).to_bytes(2, byteorder='big')
151 | 
152 |     # Nameserver Count
153 |     NSCOUNT = (0).to_bytes(2, byteorder='big')
154 | 
155 |     # Additonal Count
156 |     ARCOUNT = (0).to_bytes(2, byteorder='big')
157 | 
158 |     dnsheader = TransactionID+Flags+QDCOUNT+ANCOUNT+NSCOUNT+ARCOUNT
159 | 
160 |     # Create DNS body
161 |     dnsbody = b''
162 | 
163 |     # Get answer for query
164 |     records, rectype, domainname = getrecs(data[12:])
165 | 
166 |     dnsquestion = buildquestion(domainname, rectype)
167 |     
168 | 
169 |     
170 |     for record in records:
171 |         dnsbody += rectobytes(domainname, rectype, record["ttl"], record["value"])
172 | 
173 |     
174 |     return dnsheader + dnsquestion + dnsbody
175 | 
176 | 
177 | while 1:
178 |     data, addr = sock.recvfrom(512)
179 |     r = buildresponse(data)
180 | 
181 |     sock.sendto(r, addr)
182 | 	
183 | 


--------------------------------------------------------------------------------
/src/dnsrequest.py:
--------------------------------------------------------------------------------
 1 | #! /usr/bin/env python3
 2 |  
 3 | from scapy.all import DNS, DNSQR, IP, sr1, UDP
 4 |  
 5 | dns_req = IP(dst='8.8.8.8')/UDP(dport=53)/DNS(rd=1, qd=DNSQR(qname='www.thepacketgeek.com'))
 6 | answer = sr1(dns_req, verbose=0)
 7 |  
 8 | print(answer[DNS].summary())
 9 |  
10 |  
11 |  
12 | 
13 | 
14 | 


--------------------------------------------------------------------------------
/src/icmp_match_struct.py:
--------------------------------------------------------------------------------
 1 | """
 2 | Script created by POX custom flow generator (PCFG)
 3 | """
 4 | from pox.core import core 
 5 | from pox.lib.addresses import IPAddr 
 6 | from pox.lib.addresses import EthAddr 
 7 | import pox.openflow.libopenflow_01 as of
 8 | import pox.lib.packet as pkt
 9 | 
10 | log = core.getLogger()
11 | 
12 | #flow0_0 Match structure
13 | switch0=01
14 | flow0_0msg = of.ofp_flow_mod()
15 | flow1_0msg = of.ofp_flow_mod()
16 | flow2_0msg = of.ofp_flow_mod()
17 | 
18 | #############################################
19 | flow0_0msg.match.dl_type=0x800  #This matches packet as IPv4, if you do not use this further tp_src matches are ignored
20 | flow0_0msg.match.in_port=1
21 | flow0_0msg.match.nw_proto=pkt.ipv4.ICMP_PROTOCOL
22 | flow0_0msg.match.tp_src = pkt.ICMP.TYPE_ECHO_REQUEST
23 | #flow0_0msg.match.tp_src = pkt.ICMP.TYPE_ECHO_REPLY
24 | flow1_0msg.match.dl_type=0x800  #This matches packet as IPv4, if you do not use this further tp_src matches are ignored
25 | flow1_0msg.match.in_port=2
26 | flow1_0msg.match.nw_proto=pkt.ipv4.ICMP_PROTOCOL
27 | flow1_0msg.match.tp_src = pkt.ICMP.TYPE_ECHO_REQUEST
28 | flow1_0msg.actions.append(of.ofp_action_output( port = 1 ) )
29 | flow2_0msg.match.dl_type=0x800  #This matches packet as IPv4, if you do not use this further tp_src matches are ignored
30 | flow2_0msg.match.in_port=1
31 | flow2_0msg.match.nw_proto=pkt.ipv4.ICMP_PROTOCOL
32 | #flow0_0msg.match.tp_src = pkt.ICMP.TYPE_ECHO_REQUEST
33 | flow2_0msg.match.tp_src = pkt.ICMP.TYPE_ECHO_REPLY
34 | flow2_0msg.actions.append(of.ofp_action_output( port = 2 ) )
35 | ###################################################
36 | 
37 | 
38 | # ACTIONS----------------
39 | flow0_0out = of.ofp_action_output(port =2)
40 | #flow1_0out = of.ofp_action_output(port = 1)
41 | #flow2_0out = of.ofp_action_output(port = 2)
42 | flow0_0msg.actions=[flow0_0out]
43 | #flow1_0msg.actions=[flow1_0out]
44 | #flow2_0msg.actions=[flow2_0out]
45 | 
46 | def install_flows():
47 |         log.info("  ### Installing static flows... ###")
48 |         core.openflow.sendToDPID(switch0,flow0_0msg)
49 |         core.openflow.sendToDPID(switch0,flow1_0msg)
50 |         core.openflow.sendToDPID(switch0,flow2_0msg)
51 |         log.info("### Static flows installed. ###")
52 | def launch (): 
53 | 	log.info("####Starting...####")
54 | 	core.callDelayed (10, install_flows)
55 | 	log.info("### Waiting for switches to connect.. ###")
56 | 


--------------------------------------------------------------------------------
/sublime.gitignore:
--------------------------------------------------------------------------------
 1 | # Cache files for Sublime Text
 2 | *.tmlanguage.cache
 3 | *.tmPreferences.cache
 4 | *.stTheme.cache
 5 | 
 6 | # Workspace files are user-specific
 7 | *.sublime-workspace
 8 | 
 9 | # Project files should be checked into the repository, unless a significant
10 | # proportion of contributors will probably not be using Sublime Text
11 | # *.sublime-project
12 | 
13 | # SFTP configuration file
14 | sftp-config.json
15 | 
16 | # Package control specific files
17 | Package Control.last-run
18 | Package Control.ca-list
19 | Package Control.ca-bundle
20 | Package Control.system-ca-bundle
21 | Package Control.cache/
22 | Package Control.ca-certs/
23 | Package Control.merged-ca-bundle
24 | Package Control.user-ca-bundle
25 | oscrypto-ca-bundle.crt
26 | bh_unicode_properties.cache
27 | 
28 | # Sublime-github package stores a github token in this file
29 | # https://packagecontrol.io/packages/sublime-github
30 | GitHub.sublime-settings
31 | 


--------------------------------------------------------------------------------
/topology/MakeFile:
--------------------------------------------------------------------------------
1 | topo:
2 | 	sudo python phase2.py
3 | 
4 | clean:
5 | 	sudo mn -c
6 | 


--------------------------------------------------------------------------------
/topology/phase2.py:
--------------------------------------------------------------------------------
  1 | #!/usr/bin/python
  2 | from mininet.net import Mininet
  3 | from mininet.node import Controller, RemoteController, OVSKernelSwitch, OVSLegacyKernelSwitch, UserSwitch
  4 | from mininet.cli import CLI
  5 | from mininet.log import setLogLevel
  6 | from mininet.link import Link, TCLink
  7 | from mininet.topo import Topo
  8 | from mininet.log import setLogLevel, info
  9 | import os
 10 | test_phase1 =os.path.expanduser('/../results/Report_phase1')
 11 | 
 12 | def topology():
 13 |     "Create a network."
 14 |     net = Mininet( controller=RemoteController, link=TCLink, switch=OVSKernelSwitch )
 15 | 
 16 | 
 17 |     #begin controller
 18 |     c1 = net.addController( 'c1', controller=RemoteController, ip='127.0.0.1', port=6633, mac='00:00:00:00:00:0d' )
 19 | 
 20 |         #add switches
 21 |     print "*** Creating Switches"
 22 |     s1 = net.addSwitch( 's1', listenPort=6634, mac='00:00:00:00:00:02' )
 23 |     s2 = net.addSwitch( 's2', listenPort=6634, mac='00:00:00:00:00:03' )
 24 |     s3 = net.addSwitch( 's3', listenPort=6634, mac='00:00:00:00:00:04' )
 25 |     s4 = net.addSwitch( 's4', listenPort=6634, mac='00:00:00:00:00:05' )
 26 |     s5 = net.addSwitch( 's5', listenPort=6634, mac='00:00:00:00:00:06' )
 27 |     lb6 = net.addSwitch( 'lb6', listenPort=6634, mac='00:00:00:00:00:07' )
 28 |     lb7 = net.addSwitch( 'lb7', listenPort=6634, mac='00:00:00:00:00:08' )
 29 |     id8 = net.addSwitch( 'id8', listenPort=6634, mac='00:00:00:00:00:09' )
 30 |     n9 = net.addSwitch( 'n9',listenPort=6634, mac='00:00:00:00:00:0a' )
 31 |     fw10 = net.addSwitch ('fw10', listenPort = 6634, mac='00:00:00:00:00:0b')
 32 |     fw11 = net.addSwitch ('fw11' ,listenPort = 6634, mac='00:00:00:00:00:0c')
 33 | 
 34 |         #add hosts
 35 |     print "*** Creating Hosts "
 36 |     h1 = net.addHost( 'h1', ip='100.0.0.11/24' )
 37 |     h2 = net.addHost( 'h2', ip='100.0.0.12/24' )
 38 |     h3 = net.addHost( 'h3', ip='100.0.0.51/24' )
 39 |     h4 = net.addHost( 'h4', ip='100.0.0.52/24' )
 40 |     ws5 = net.addHost( 'ws5', ip='100.0.0.40/24' )
 41 |     ws6 = net.addHost( 'ws6', ip='100.0.0.41/24' )
 42 |     ws7 = net.addHost( 'ws7', ip='100.0.0.42/24' )
 43 |     ds8 = net.addHost( 'ds8', ip='100.0.0.20/24' )
 44 |     ds9 = net.addHost( 'ds9', ip='100.0.0.21/24' )
 45 |     ds10 = net.addHost( 'ds10', ip = '100.0.0.22/24')
 46 |     insp11 = net.addHost( 'insp11',ip = '100.0.0.30/24')
 47 | 
 48 | 
 49 | 
 50 | 
 51 | 
 52 | 
 53 |     print "*** Creating links"
 54 |     net.addLink(s1,h1)
 55 |     net.addLink(s1,h2)
 56 |     net.addLink(s1,fw10)
 57 |     net.addLink(s2,fw10)
 58 | 
 59 |     net.addLink(s2,fw11)
 60 |     net.addLink(s2,id8)
 61 |     net.addLink(s2,lb6)
 62 |     net.addLink(s3,ds8)
 63 |     net.addLink(s3,ds9)
 64 |     net.addLink(s3,ds10)
 65 |     net.addLink(s3,lb6)
 66 |     net.addLink(s4,ws5)
 67 |     net.addLink(s4,ws6)
 68 |     net.addLink(s4,ws7)
 69 |     net.addLink(s4,lb7)
 70 |     net.addLink(lb7,id8)
 71 |     net.addLink(n9,fw11)
 72 |     net.addLink(s5, h3)
 73 |     net.addLink(s5, h4)
 74 |     net.addLink(s5,n9)
 75 |     net.addLink(id8,insp11)
 76 | 
 77 |     print "*** Starting network"
 78 |     net.build()
 79 |     s1.start( [c1] )
 80 |     s2.start( [c1] )
 81 |     s3.start( [c1] )
 82 |     s4.start( [c1] )
 83 |     s5.start( [c1] )
 84 |     lb6.start( [c1] )
 85 |     lb7.start( [c1] )
 86 |     id8.start( [c1] )
 87 |     n9.start( [c1] )
 88 |     fw10.start( [c1] )
 89 |     fw11.start( [c1] )
 90 |     print ("Done")
 91 |     test_start(net)
 92 | 
 93 | def startserver(net):
 94 | 
 95 |     ds8 = net.get('ds8')
 96 |     ds9 = net.get('ds9')
 97 |     ds10 = net.get('ds10')
 98 |     ws5 = net.get('ws5')
 99 |     ws6 = net.get('ws6')
100 |     ws7 = net.get('ws7')
101 |     
102 | 
103 | 
104 |     ds8.cmd('python3 dns1.py &')
105 |     ws5.cmd('python -m SimpleHTTPServer 80 &')
106 |     ds9.cmd('python3 dns2.py &')
107 |     ws6.cmd('python -m SimpleHTTPServer 80 &')
108 |     ds10.cmd('python3 dns3.py &')
109 |     ws7.cmd('python -m SimpleHTTPServer 80 &')
110 | 
111 | def test_start(net):
112 |     log = open(test_phase1, 'w+')
113 |     h1 = net.get('h1')
114 |     h2 = net.get('h2')
115 |     h3 = net.get('h3')
116 |     h4 = net.get('h4')
117 |     ds8 = net.get('ds8')
118 |     ws5 = net.get('ws5')
119 |     insp11=net.get('insp11')
120 |     ds8 = net.get('ds8')
121 |     ds9 = net.get('ds9')
122 |     ds10 = net.get('ds10')
123 |     ws5 = net.get('ws5')
124 |     ws6 = net.get('ws6')
125 |     ws7 = net.get('ws7')
126 | 
127 |     insp11.cmd("tcpdump -s 0 -i insp11-eth0 -w insp11.pcap &")
128 | 
129 | 
130 |         #case1 Ping within Public Zone
131 |     output = h1.cmdPrint('ping -c5', h2.IP())
132 |     log.write('Within Public Zone, ---h1 ping h2---\n'+output+'\n')
133 | 
134 |         #case 2 Ping Public to private zone
135 |     output = h1.cmdPrint('ping -c5', h3.IP())
136 |     log.write(' Public to Private Zone ---h1 ping h3---\n'+output+'\n')
137 | 
138 |         #case 3 Ping public to private
139 |     output = h1.cmdPrint('ping -c5', h4.IP())
140 |     log.write('Public to private ---h1 ping h4---\n'+output+'\n')
141 | 
142 |         #case4 Ping within Private zone
143 |     output = h3.cmdPrint('ping -c5', h4.IP())
144 |     log.write('Within Private Zone ---h3 ping h4---\n'+output+'\n')
145 | 
146 |         #case5 Private to public
147 |     output = h3.cmdPrint('ping -c5', h1.IP())
148 |     log.write('Private to Public ---h3 ping h1---\n'+output+'\n')
149 | 
150 |         #case6 Private to public
151 |     output = h3.cmdPrint('ping -c5', h2.IP())
152 |     log.write('Private to Public ---h3 ping h2---n'+output+'\n')
153 | 
154 |         #case7 Public to DMZ
155 |     output = h1.cmdPrint('ping -c5', ds8.IP())
156 |     log.write('Public to DMZ ---h1 ping ds8---\n'+output+'\n')
157 | 
158 |         #case8 Public to DMZ
159 |     output = h1.cmdPrint('ping -c5', ws5.IP())
160 |     log.write('Public to DMZ ---h1 ping ws5---\n'+output+'\n')
161 | 
162 |         #case9 Public to LB6
163 |     output = h2.cmdPrint('ping -c5 100.0.0.25') 
164 |     log.write('Public to DMZ ---h2 ping lb6---\n'+output+'\n')
165 | 
166 |         #case10 Public to lb7
167 |     output = h2.cmdPrint('ping -c5 100.0.0.45')
168 |     log.write('Public to DMZ ---h2 ping lb7---\n'+output+'\n')
169 | 
170 |         #case11 Private to DMZ
171 |     output = h3.cmdPrint('ping -c5', ds8.IP())
172 |     log.write('Private to DMZ ---h3 ping ds8---\n'+output+'\n')
173 | 
174 |         #case12 Private to DMZ
175 |     output = h3.cmdPrint('ping -c5', ws5.IP())
176 |     log.write('Private to DMZ ---h3 ping ws5---\n'+output+'\n')
177 | 
178 |         #case13 Private to lb6
179 |     output = h4.cmdPrint('ping -c5 100.0.0.25')
180 |     log.write('Private to DMZ ---h4 ping lb6---\n'+output+'\n')
181 | 
182 |         #case14 Private to LB7
183 |     output = h4.cmdPrint('ping -c5 100.0.0.45')
184 |     log.write('Private to DMZ ---h4 ping lb7---\n'+output+'\n')
185 | 
186 | 
187 | 
188 | 
189 |     startserver(net)
190 |     #15 h1 UDP lb6
191 |     dig = ''.join(['dig @100.0.0.25 web1.com'])
192 |     result=h1.cmdPrint(dig)
193 |     log.write('h1 dig lb6\n'+result+'\n\n')
194 | 
195 |     #16 h2 UDP lb6
196 |     dig = ''.join(['dig @100.0.0.25 web1.com'])
197 |     result=h2.cmdPrint(dig)
198 |     log.write('h2 dig lb6\n'+result+'\n\n')
199 | 
200 |     #17 h3 UDP lb6
201 |     dig = ''.join(['dig @100.0.0.25 web2.com'])
202 |     result=h3.cmdPrint(dig)
203 |     log.write('h3 dig lb6\n'+result+'\n\n')
204 | 
205 |     #18 h4 UDP lb6
206 |     dig = ''.join(['dig @100.0.0.25 web3.com'])
207 |     result=h4.cmdPrint(dig)
208 |     log.write('h4 dig lb6\n'+result+'\n\n')
209 | 
210 |     #19 h1 UDP ds8
211 |     dig = ''.join(['dig +time=2 @', ds8.IP(), ' web1.com'])
212 |     result=h1.cmdPrint(dig)
213 |     log.write('h1 dig ds8\n'+result+'\n\n')
214 |     
215 |     #20 h1 UDP ds9
216 |     dig = ''.join(['dig +time=2 @', ds9.IP(), ' web2.com'])
217 |     result=h1.cmdPrint(dig)
218 |     log.write('h1 dig ds9\n'+result+'\n\n')
219 | 
220 |     #21 h3 UDP ds10
221 |     dig = ''.join(['dig +time=2 @', ds10.IP(), ' web3.com'])
222 |     result=h3.cmdPrint(dig)
223 |     log.write('h3 dig ds10\n'+result+'\n\n')
224 | 
225 | 
226 | 
227 |     #22 IDS test (h1 POST test)
228 |     result = h1.cmdPrint('curl 100.0.0.45 -X POST')
229 |     log.write('h1 POST test\n'+result+'\n\n')
230 |     
231 |     #23 IDS test (h2 PUT test)
232 |     result = h3.cmdPrint('curl 100.0.0.45 -X PUT')
233 |     log.write('h3 PUT test\n'+result+'\n\n')
234 |     
235 |     #24 IDS test (h3 GET test)
236 |     result = h2.cmdPrint('curl -m 2 100.0.0.45 -X GET')
237 |     log.write('h2 GET test\n'+result+'\n\n')
238 |     
239 |     #25 IDS test (h4 HEAD test)
240 |     result = h4.cmdPrint('curl -m 2 HEAD 100.0.0.45')
241 |     log.write('h4 HEAD test\n'+result+'\n\n')
242 |     
243 |     #26 IDS test (h1 OPTION test)
244 |     result = h1.cmdPrint('curl -m 2 OPTION 100.0.0.45')
245 |     log.write('h1 OPTION test\n'+result+'\n\n')
246 |     
247 |     #27 IDS test (h2 TRACE test)
248 |     result = h3.cmdPrint('curl -m 2 -v -X TRACE 100.0.0.45')
249 |     log.write('h3 TRACE test\n'+result+'\n\n')
250 |     
251 |     #28 IDS test (h3 DELETE test)
252 |     result = h2.cmdPrint('curl -m 2 DELETE 100.0.0.45')
253 |     log.write('h2 DELETE test\n'+result+'\n\n')
254 |     
255 |     #29 IDS test (h4 CONNECT test)
256 |     result = h4.cmdPrint('curl -m 2 CONNECT 100.0.0.45')
257 |     log.write('h4 CONNECT test\n'+result+'\n\n')
258 | 
259 |     #30 IDS test (h1 /etc/passwd test)
260 |     result = h1.cmdPrint('curl -m 2 100.0.0.45 -X PUT -d "cat /etc/passwd"')
261 |     log.write('h1 /etc/passwd test\n'+result+'\n\n')
262 |     
263 |     #31 IDS test (h3 /var/log/ test)
264 |     result = h3.cmdPrint('curl -m 2 100.0.0.45 -X PUT -d "cat /var/log/"')
265 |     log.write('h3 /var/log/ test\n'+result+'\n\n')
266 |     
267 |     #32 IDS test (h2 SQL INSERT test)
268 |     result = h2.cmdPrint('curl -m 2 100.0.0.45 -X PUT -d "INSERT"')
269 |     log.write('h2 INSERT test\n'+result+'\n\n')
270 |     
271 |     #33 IDS test (h4 SQL UPDATE test)
272 |     result = h4.cmdPrint('curl -m 2 100.0.0.45 -X PUT -d "UPDATE"')
273 |     log.write('h4 UPDATE test\n'+result+'\n\n')
274 |     
275 |     #34 IDS test (h1 SQL DELETE test)   
276 |     result = h1.cmdPrint('curl -m 2 100.0.0.45 -X PUT -d "DELETE"')
277 |     log.write('h1 DELETE test\n'+result+'\n\n')
278 | 
279 |     #35 h3 TCP ws1
280 |     result=h3.cmdPrint('curl -m 2 ', ws5.IP())
281 |     log.write('h3 curl ws1\n'+result+'\n\n')
282 | 
283 |     #36 h1 TCP ws1
284 |     result=h1.cmdPrint('curl -m 2 ', ws6.IP())
285 |     log.write('h1 curl ws1\n'+result+'\n\n')
286 | 
287 |     result=h1.cmdPrint('curl -m 2 ', ws7.IP())
288 |     log.write('h1 curl ws7\n'+result+'\n\n')
289 | 
290 |     result=h1.cmdPrint('curl -m 2 ', ws8.IP())
291 |     log.write('h1 curl ws8\n'+result+'\n\n')
292 | 
293 |     
294 | 
295 | 
296 | 
297 | 
298 |     
299 |     #17 h1 http
300 |     # curl =''.join(['curl http://100.0.0.40:80/test.html'])
301 |     # result= h1.cmdPrint(curl)
302 |     # log.write('Server side running\n'+result+'\n\n')
303 | 
304 | 
305 | 
306 |  #   iperf = ''.join(['iperf -c 100.0.0.40  -n 1G -b 5M -p 80'])
307 |  #   result= h1.cmdPrint(iperf)
308 |  #   log.write('Server side running\n'+result+'\n\n')
309 | 
310 | 
311 | 
312 | 
313 |     log.close()
314 | 
315 |     #print "*** Running CLI"
316 |     CLI( net )
317 | 
318 |     print "*** Stopping network"
319 |     net.stop()
320 | 
321 | if __name__=='__main__':
322 | 
323 |         topology()
324 | 


--------------------------------------------------------------------------------
/topology/topology_log.py:
--------------------------------------------------------------------------------
  1 | #!/usr/bin/python
  2 | from mininet.net import Mininet
  3 | from mininet.node import Controller, RemoteController, OVSKernelSwitch, OVSLegacyKernelSwitch, UserSwitch
  4 | from mininet.cli import CLI
  5 | from mininet.log import setLogLevel
  6 | from mininet.link import Link, TCLink
  7 | from mininet.topo import Topo
  8 | from mininet.log import setLogLevel, info
  9 | import os
 10 | test_phase1 =os.path.expanduser('~') + '/ik2220-assign-phase1-team5/results/phase_1_report.txt'
 11 | 
 12 | def topology():
 13 |     "Create a network."
 14 |     net = Mininet( controller=RemoteController, link=TCLink, switch=OVSKernelSwitch )
 15 | 
 16 | 
 17 |     #begin controller
 18 |     c1 = net.addController( 'c1', controller=RemoteController, ip='127.0.0.1', port=6633, mac='00:00:00:00:00:0d' )
 19 | 
 20 |         #add switches
 21 |     print "*** Creating Switches"
 22 |     s1 = net.addSwitch( 's1', listenPort=6634, mac='00:00:00:00:00:02' )
 23 |     s2 = net.addSwitch( 's2', listenPort=6634, mac='00:00:00:00:00:03' )
 24 |     s3 = net.addSwitch( 's3', listenPort=6634, mac='00:00:00:00:00:04' )
 25 |     s4 = net.addSwitch( 's4', listenPort=6634, mac='00:00:00:00:00:05' )
 26 |     s5 = net.addSwitch( 's5', listenPort=6634, mac='00:00:00:00:00:06' )
 27 |     lb6 = net.addSwitch( 'lb6', listenPort=6634, mac='00:00:00:00:00:07' )
 28 |     lb7 = net.addSwitch( 'lb7', listenPort=6634, mac='00:00:00:00:00:08' )
 29 |     id8 = net.addSwitch( 'id8', listenPort=6634, mac='00:00:00:00:00:09' )
 30 |     n9 = net.addSwitch( 'n9',listenPort=6634, mac='00:00:00:00:00:0a' )
 31 |     fw10 = net.addSwitch ('fw10', listenPort = 6634, mac='00:00:00:00:00:0b')
 32 |     fw11 = net.addSwitch ('fw11' ,listenPort = 6634, mac='00:00:00:00:00:0c')
 33 | 
 34 |         #add hosts
 35 |     print "*** Creating Hosts "
 36 |     h1 = net.addHost( 'h1', ip='100.0.0.11/24' )
 37 |     h2 = net.addHost( 'h2', ip='100.0.0.12/24' )
 38 |     h3 = net.addHost( 'h3', ip='100.0.0.51/24' )
 39 |     h4 = net.addHost( 'h4', ip='100.0.0.52/24' )
 40 |     ws5 = net.addHost( 'ws5', ip='100.0.0.40/24' )
 41 |     ws6 = net.addHost( 'ws6', ip='100.0.0.41/24' )
 42 |     ws7 = net.addHost( 'ws7', ip='100.0.0.42/24' )
 43 |     ds8 = net.addHost( 'ds8', ip='100.0.0.20/24' )
 44 |     ds9 = net.addHost( 'ds9', ip='100.0.0.21/24' )
 45 |     ds10 = net.addHost( 'ds10', ip = '100.0.0.22/24')
 46 |     insp11 = net.addHost( 'insp11',ip = '100.0.0.30/24')
 47 | 
 48 | 
 49 | 
 50 | 
 51 |     print "*** Creating links"
 52 |     net.addLink(s1,h1)
 53 |     net.addLink(s1,h2)
 54 |     net.addLink(s1,fw10)
 55 |     net.addLink(s2,fw10)
 56 |     
 57 |     net.addLink(s2,fw11)
 58 |     net.addLink(s2,id8)
 59 |     net.addLink(s2,lb6)
 60 |     net.addLink(s3,ds8)
 61 |     net.addLink(s3,ds9)
 62 |     net.addLink(s3,ds10)
 63 |     net.addLink(s3,lb6)
 64 |     net.addLink(s4,ws5)
 65 |     net.addLink(s4,ws6)
 66 |     net.addLink(s4,ws7)
 67 |     net.addLink(s4,lb7)
 68 |     net.addLink(lb7,id8)
 69 |     net.addLink(n9,fw11)
 70 |     net.addLink(s5, h3)
 71 |     net.addLink(s5, h4)
 72 |     net.addLink(s5,n9)
 73 |     net.addLink(id8,insp11)
 74 | 
 75 |     print "*** Starting network"
 76 |     net.build()
 77 |     s1.start( [c1] )
 78 |     s2.start( [c1] )
 79 |     s3.start( [c1] )
 80 |     s4.start( [c1] )
 81 |     s5.start( [c1] )
 82 |     lb6.start( [c1] )
 83 |     lb7.start( [c1] )
 84 |     id8.start( [c1] )
 85 |     n9.start( [c1] )
 86 |     fw10.start( [c1] )
 87 |     fw11.start( [c1] )
 88 |     print ("Done")
 89 |     test_start(net)
 90 | 
 91 | def startserver(net):
 92 |     ds8 = net.get('ds8')
 93 |     ws5 = net.get('ws5')
 94 | 
 95 |     ds8.cmd('python3 dnsserver.py &')
 96 |     ws5.cmd('python -m SimpleHTTPServer 80 &')
 97 | 
 98 | def test_start(net):
 99 |     log = open(test_phase1, 'w+')
100 |     h1 = net.get('h1')
101 |     h2 = net.get('h2')
102 |     h3 = net.get('h3')
103 |     h4 = net.get('h4')
104 |     ds8 = net.get('ds8')
105 |     ws5 = net.get('ws5')
106 |     output = h1.cmdPrint('ping -c5', h2.IP())
107 |     log.write('h1 ping h2\n'+output+'\n')
108 | 
109 |         #case 2
110 |     output = h1.cmdPrint('ping -c5', h3.IP())
111 |     log.write('h1 ping h3\n'+output+'\n')
112 | 
113 |         #case 3
114 |     output = h1.cmdPrint('ping -c5', h4.IP())
115 |     log.write('h1 ping h4\n'+output+'\n')
116 | 
117 |         #case4
118 |     output = h3.cmdPrint('ping -c5', h4.IP())
119 |     log.write('h3 ping h4\n'+output+'\n')
120 | 
121 |         #case5
122 |     output = h3.cmdPrint('ping -c5', h1.IP())
123 |     log.write('h3 ping h1\n'+output+'\n')
124 | 
125 |         #case6
126 |     output = h3.cmdPrint('ping -c5', h2.IP())
127 |     log.write('h3 ping h2\n'+output+'\n')
128 | 
129 |         #case7
130 |     output = h1.cmdPrint('ping -c5', ds8.IP())
131 |     log.write('h1 ping ds8\n'+output+'\n')
132 | 
133 |         #case8
134 |     output = h1.cmdPrint('ping -c5', ws5.IP())
135 |     log.write('h1 ping ws5\n'+output+'\n')
136 | 
137 |         #case9
138 |     output = h2.cmdPrint('ping -c5', ws5.IP())
139 |     log.write('h3 ping h1\n'+output+'\n')
140 | 
141 |         #case10
142 |     output = h2.cmdPrint('ping -c5', ds8.IP())
143 |     log.write('h2 ping ds8\n'+output+'\n')
144 | 
145 |         #case11
146 |     output = h3.cmdPrint('ping -c5', ds8.IP())
147 |     log.write('h3 ping ds8\n'+output+'\n')
148 | 
149 |         #case12
150 |     output = h3.cmdPrint('ping -c5', ws5.IP())
151 |     log.write('h3 ping ws5\n'+output+'\n')
152 | 
153 |         #case13
154 |     output = h4.cmdPrint('ping -c5', ds8.IP())
155 |     log.write('h4 ping ds8\n'+output+'\n')
156 | 
157 |         #case14
158 |     output = h4.cmdPrint('ping -c5', ws5.IP())
159 |     log.write('h4 ping ws5\n'+output+'\n')
160 | 
161 | 
162 |     startserver(net)
163 |     #15 UDP ds1
164 |     dig = ''.join(['dig @', ds8.IP(), ' web1.com'])
165 |     result=h3.cmdPrint(dig)
166 |     log.write('h3 dig ds8\n'+result+'\n\n')
167 |     
168 |     #8 h1 UDP ds1
169 |     dig = ''.join(['dig @', ds8.IP(), ' web1.com'])
170 |     result=h1.cmdPrint(dig)
171 |     log.write('h1 dig ds8\n'+result+'\n\n')
172 | 
173 |     
174 |     log.close()
175 | 
176 |     #print "*** Running CLI"
177 |     CLI( net )
178 | 
179 |     print "*** Stopping network"
180 |     net.stop()
181 | 
182 | if __name__=='__main__':
183 |         
184 |         topology()
185 | 


--------------------------------------------------------------------------------
/topology/topology_new.py:
--------------------------------------------------------------------------------
 1 | #!/usr/bin/python
 2 | 
 3 | """
 4 | Script created by VND - Visual Network Description (SDN version)
 5 | """
 6 | from mininet.net import Mininet
 7 | from mininet.node import Controller, RemoteController, OVSKernelSwitch, OVSLegacyKernelSwitch, UserSwitch
 8 | from mininet.cli import CLI
 9 | from mininet.log import setLogLevel
10 | from mininet.link import Link, TCLink
11 | 
12 | def topology():
13 |     "Create a network."
14 |     net = Mininet( controller=RemoteController, link=TCLink, switch=OVSKernelSwitch )
15 | 
16 |     print "*** Creating nodes"
17 |     c1 = net.addController( 'c1', controller=RemoteController, ip='127.0.0.1', port=6633, mac='00:00:00:00:00:0d' )
18 |     s1 = net.addSwitch( 's1', listenPort=6634, mac='00:00:00:00:00:02' )
19 |     s2 = net.addSwitch( 's2', listenPort=6634, mac='00:00:00:00:00:03' )
20 |     s3 = net.addSwitch( 's3', listenPort=6634, mac='00:00:00:00:00:04' )
21 |     s4 = net.addSwitch( 's4', listenPort=6634, mac='00:00:00:00:00:05' )
22 |     s5 = net.addSwitch( 's5', listenPort=6634, mac='00:00:00:00:00:06' )
23 |     lb6 = net.addSwitch( 'lb6', listenPort=6634, mac='00:00:00:00:00:07' )
24 |     lb7 = net.addSwitch( 'lb7', listenPort=6634, mac='00:00:00:00:00:08' )
25 |     id8 = net.addSwitch( 'id8', listenPort=6634, mac='00:00:00:00:00:09' )
26 |     n9 = net.addSwitch( 'n9',listenPort=6634, mac='00:00:00:00:00:0a' )
27 |     fw10 = net.addSwitch ('fw10', listenPort = 6634, mac='00:00:00:00:00:0b')
28 |     fw11 = net.addSwitch ('fw11' ,listenPort = 6634, mac='00:00:00:00:00:0c')
29 |     h1 = net.addHost( 'h1', ip='100.0.0.11/24' )
30 |     h2 = net.addHost( 'h2', ip='100.0.0.12/24' )
31 |     h3 = net.addHost( 'h3', ip='100.0.0.51/24' )
32 |     h4 = net.addHost( 'h4', ip='100.0.0.52/24' )
33 |     ws5 = net.addHost( 'ws5', ip='100.0.0.40/24' )
34 |     ws6 = net.addHost( 'ws6', ip='100.0.0.41/24' )
35 |     ws7 = net.addHost( 'ws7', ip='100.0.0.42/24' )
36 |     ds8 = net.addHost( 'ds8', ip='100.0.0.20/24' )
37 |     ds9 = net.addHost( 'ds9', ip='100.0.0.21/24' )
38 |     ds10 = net.addHost( 'ds10', ip = '100.0.0.22/24')
39 |     insp11 = net.addHost( 'insp11',ip = '100.0.0.30/24')
40 | 
41 |     print "*** Creating links"
42 |     net.addLink(s1,h1)
43 |     net.addLink(s1,h2)
44 |     net.addLink(s1,fw10)
45 |     net.addLink(s2,fw10)
46 |     
47 |     net.addLink(s2,fw11)
48 |     net.addLink(s2,id8)
49 |     net.addLink(s2,lb6)
50 |     net.addLink(s3,ds8)
51 |     net.addLink(s3,ds9)
52 |     net.addLink(s3,ds10)
53 |     net.addLink(s3,lb6)
54 |     net.addLink(s4,ws5)
55 |     net.addLink(s4,ws6)
56 |     net.addLink(s4,ws7)
57 |     net.addLink(s4,lb7)
58 |     net.addLink(lb7,id8)
59 |     net.addLink(n9,fw11)
60 |     net.addLink(s5, h3)
61 |     net.addLink(s5, h4)
62 |     net.addLink(s5,n9)
63 |     net.addLink(id8,insp11)
64 | 
65 |     print "*** Starting network"
66 |     net.build()
67 |     s1.start( [c1] )
68 |     s2.start( [c1] )
69 |     s3.start( [c1] )
70 |     s4.start( [c1] )
71 |     s5.start( [c1] )
72 |     lb6.start( [c1] )
73 |     lb7.start( [c1] )
74 |     id8.start( [c1] )
75 |     n9.start( [c1] )
76 |     fw10.start( [c1] )
77 |     fw11.start( [c1] )
78 |     print ("Done")
79 | 
80 |     print "*** Running CLI"
81 |     CLI( net )
82 | 
83 |     print "*** Stopping network"
84 |     net.stop()
85 | 
86 | if __name__ == '__main__':
87 |     setLogLevel( 'info' )
88 |     topology()
89 | 


--------------------------------------------------------------------------------
/zones.tar.gz:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/shrin18/SDNProject/824ac53287c27f18df2e4022693fd0ca8dd5fab7/zones.tar.gz


--------------------------------------------------------------------------------