def test_ethernet_eq(self):
"Test whether the eq function works for ethernet"
ether = ethernet()
assert (ether != None)
ether.src = "\x00\x00\x00\x00\x00\x00"
ether.dst = "\xff\xff\xff\xff\xff\xff"
ether.type = 2048
# Create a packet to compare against
ethernew = ethernet()
ethernew.decode(ether.bytes)
self.assertEqual(ether.bytes, ethernew.bytes, "bytes not equal")
self.assertEqual(
ether.src, ethernew.src, "sources not equal ether %s ethernew %s" %
(ether.src, ethernew.src))
self.assertEqual(
ether.dst, ethernew.dst,
"destinations not equal ether %s ethernew %s" %
(ether.dst, ethernew.dst))
self.assertEqual(
ether.type, ethernew.type, "types not equal ether %s ethernew %s" %
(ether.type, ethernew.type))
self.assertEqual(ether, ethernew, "ether != to ethernew but should be")
def main():
from optparse import OptionParser
parser = OptionParser()
parser.add_option("-i",
"--interface",
dest="interface",
default=None,
help="Network interface to send on.")
parser.add_option("-t",
"--target",
dest="target",
default=None,
help="IPv4 target address to lookup.")
parser.add_option("-e",
"--ether_source",
dest="ether_source",
default=None,
help="Ethernet source address to use.")
parser.add_option("-p",
"--ip_source",
dest="ip_source",
default=None,
help="IPv4 source address to use.")
(options, args) = parser.parse_args()
arppkt = arp()
arppkt.op = 1
arppkt.sha = ether_atob(options.ether_source)
arppkt.spa = inet_atol(options.ip_source)
arppkt.tha = "\x00\x00\x00\00\x00\x00"
arppkt.tpa = inet_atol(options.target)
ether = ethernet()
ether.src = ether_atob(options.ether_source)
ether.dst = "\xff\xff\xff\xff\xff\xff"
ether.type = 0x806
packet = Chain([ether, arppkt])
output = PcapConnector(options.interface)
out = output.write(packet.bytes, len(packet.bytes))
reply = output.read()
reply = output.read()
packet = ethernet(reply)
print packet
print packet.data
def test_ethernet_compare(self):
"""Test the underlying __compare__ functionality of the
packet. Two packets constructed from the same bytes should be
equal and two that are not should not be equal."""
file = PcapConnector("etherping.out")
packet = file.read()
ether1 = ethernet(packet[0:file.dloff])
ether2 = ethernet(packet[0:file.dloff])
assert (ether1 != None)
assert (ether2 != None)
self.assertEqual(ether1, ether2, "packets should be equal but are not")
ether1.dst = "\xff\xff\xff\xff\xff\xff"
self.assertNotEqual(ether1, ether2, "packets compare equal but should not")
def test_ethernet_compare(self):
"""Test the underlying __compare__ functionality of the
packet. Two packets constructed from the same bytes should be
equal and two that are not should not be equal."""
file = PcapConnector("etherping.out")
packet = file.read()
ether1 = ethernet(packet[0:file.dloff])
ether2 = ethernet(packet[0:file.dloff])
assert (ether1 != None)
assert (ether2 != None)
self.assertEqual(ether1, ether2, "packets should be equal but are not")
ether1.dst = "\xff\xff\xff\xff\xff\xff"
self.assertNotEqual(ether1, ether2, "packets compare equal but should not")
def test_ethernet_dump(self):
"""This test dumps a fake ethernet packet, with timetamp, to a
dump file."""
from pcs.pcap import DLT_EN10MB
file = PcapDumpConnector("pcapdump2.out", DLT_EN10MB)
# create one packet, copy its bytes, then compare their fields
ether = ethernet()
assert (ethernet != None)
ether.src = "\x00\x00\x00\x00\x00\x00"
ether.dst = "\xff\xff\xff\xff\xff\xff"
ether.type = 2048
class header:
sec = 0
usec = 0
caplen = 0
header.sec = 69
header.usec = 69
header.caplen = len(ether.bytes)
file.sendto(ether.bytes, header)
file.close()
# Re read what we just wrote.
file = PcapConnector("pcapdump2.out", DLT_EN10MB)
ether = file.readpkt()
assert(ether.timestamp == 69.000069)
def test_ethernet_dump(self):
"""This test dumps a fake ethernet packet, with timetamp, to a
dump file."""
from pcs.pcap import DLT_EN10MB
file = PcapDumpConnector("pcapdump2.out", DLT_EN10MB)
# create one packet, copy its bytes, then compare their fields
ether = ethernet()
assert (ethernet != None)
ether.src = "\x00\x00\x00\x00\x00\x00"
ether.dst = "\xff\xff\xff\xff\xff\xff"
ether.type = 2048
class header:
sec = 0
usec = 0
caplen = 0
header.sec = 69
header.usec = 69
header.caplen = len(ether.bytes)
file.sendto(ether.bytes, header)
file.close()
# Re read what we just wrote.
file = PcapConnector("pcapdump2.out", DLT_EN10MB)
ether = file.readpkt()
assert (ether.timestamp == 69.000069)
def test_udpv4_raw(self):
# Create a packet for raw injection and verify it meets criteria.
from pcs import inet_atol
from pcs.packets.payload import payload
c = ethernet(src="\x01\x02\x03\x04\x05\x06", \
dst="\xff\xff\xff\xff\xff\xff") / \
ipv4(src=inet_atol("192.168.123.17"), \
dst=inet_atol("192.0.2.2"), id=5235) / \
udp(sport=67, dport=68) / \
payload("foobar\n")
c.calc_lengths()
c.calc_checksums()
c.encode()
expected = \
"\xFF\xFF\xFF\xFF\xFF\xFF\x01\x02" \
"\x03\x04\x05\x06\x08\x00\x45\x00" \
"\x00\x23\x14\x73\x00\x00\x40\x11" \
"\x68\x9B\xC0\xA8\x7B\x11\xC0\x00" \
"\x02\x02\x00\x43\x00\x44\x00\x0F" \
"\xC0\x48\x66\x6F\x6F\x62\x61\x72" \
"\x0A"
gotttted = c.bytes
self.assertEqual(expected, gotttted, "test raw encoding")
def test_udpv4_raw(self):
# Create a packet for raw injection and verify it meets criteria.
from pcs import inet_atol
from pcs.packets.payload import payload
c = ethernet(src="\x01\x02\x03\x04\x05\x06", \
dst="\xff\xff\xff\xff\xff\xff") / \
ipv4(src=inet_atol("192.168.123.17"), \
dst=inet_atol("192.0.2.2"), id=5235) / \
udp(sport=67, dport=68) / \
payload("foobar\n")
c.calc_lengths()
c.calc_checksums()
c.encode()
expected = \
"\xFF\xFF\xFF\xFF\xFF\xFF\x01\x02" \
"\x03\x04\x05\x06\x08\x00\x45\x00" \
"\x00\x23\x14\x73\x00\x00\x40\x11" \
"\x68\x9B\xC0\xA8\x7B\x11\xC0\x00" \
"\x02\x02\x00\x43\x00\x44\x00\x0F" \
"\xC0\x48\x66\x6F\x6F\x62\x61\x72" \
"\x0A"
gotttted = c.bytes
self.assertEqual(expected, gotttted, "test raw encoding")
def main():
from optparse import OptionParser
parser = OptionParser()
parser.add_option("-i", "--interface",
dest="interface", default=None,
help="Network interface to send on.")
parser.add_option("-t", "--target",
dest="target", default=None,
help="IPv4 target address to lookup.")
parser.add_option("-e", "--ether_source",
dest="ether_source", default=None,
help="Ethernet source address to use.")
parser.add_option("-p", "--ip_source",
dest="ip_source", default=None,
help="IPv4 source address to use.")
(options, args) = parser.parse_args()
arppkt = arp()
arppkt.op = 1
arppkt.sha = ether_atob(options.ether_source)
arppkt.spa = inet_atol(options.ip_source)
arppkt.tha = "\x00\x00\x00\00\x00\x00"
arppkt.tpa = inet_atol(options.target)
ether = ethernet()
ether.src = ether_atob(options.ether_source)
ether.dst = "\xff\xff\xff\xff\xff\xff"
ether.type = 0x806
packet = Chain([ether, arppkt])
output = PcapConnector(options.interface)
out = output.write(packet.bytes, len(packet.bytes))
reply = output.read()
reply = output.read()
packet = ethernet(reply)
print packet
print packet.data
def main():
from optparse import OptionParser
parser = OptionParser()
parser.add_option("-I",
"--ether_iface",
dest="ether_iface",
default=None,
help="The name of the source interface.")
parser.add_option("-e",
"--ether_source",
dest="ether_source",
default=None,
help="The host Ethernet source address.")
parser.add_option("-s",
"--ip_source",
dest="ip_source",
default=None,
help="The IP source address.")
parser.add_option("-G",
"--igmp_group",
dest="igmp_group",
default=None,
help="The IPv4 group to spoof an IGMPv3 leave for.")
(options, args) = parser.parse_args()
if options.ether_iface is None or \
options.ether_source is None or \
options.ip_source is None or \
options.igmp_group is None:
print "Non-optional argument missing."
return
# Create an IGMPv3 change-to-include report for the given group
# with no sources, which means we're leaving the group.
# IGMPv3 Host Reports are always sent to IGMP.MCAST.NET (224.0.0.22),
# and must always contain the Router Alert option.
c = ethernet(src=ether_atob(options.ether_source), \
dst=ETHER_MAP_IP_MULTICAST(INADDR_ALLRPTS_GROUP)) / \
ipv4(src=inet_atol(options.ip_source), dst=INADDR_ALLRPTS_GROUP, \
ttl=1, flags=IP_DF, options=[ipvt4opt(IPOPT_RA)]) / \
igmp(type=IGMP_v3_HOST_MEMBERSHIP_REPORT) / \
igmpv3.report(records=[GroupRecordField("", \
group=inet_atol(options.igmp_group), \
type=IGMP_CHANGE_TO_INCLUDE)])
c.fixup()
# Send it.
output = PcapConnector(options.ether_iface)
out = output.write(c.bytes, len(c.bytes))
def main():
from optparse import OptionParser
parser = OptionParser()
parser.add_option("-I",
"--ether_iface",
dest="ether_iface",
default=None,
help="The name of the source interface.")
parser.add_option("-e",
"--ether_source",
dest="ether_source",
default=None,
help="The host Ethernet source address.")
parser.add_option("-s",
"--ip_source",
dest="ip_source",
default=None,
help="The IP source address.")
parser.add_option("-G",
"--igmp_group",
dest="igmp_group",
default=None,
help="The IPv4 group to spoof a leave message for.")
parser.add_option("-A",
"--no-router-alert",
action="store_true",
dest="no_ra",
help="Disable the use of the IP Router Alert option.")
(options, args) = parser.parse_args()
if options.igmp_group is None or \
options.ether_source is None or \
options.ether_iface is None or \
options.ip_source is None:
print "A required argument is missing."
return
output = PcapConnector(options.ether_iface)
c = ethernet(src=ether_atob(options.ether_source), \
dst=ETHER_MAP_IP_MULTICAST(INADDR_ALLRTRS_GROUP)) / \
ipv4(flags=IP_DF, id=123, ttl=1, \
src=inet_atol(options.ip_source), \
dst=INADDR_ALLRTRS_GROUP) / \
igmp(type=IGMP_HOST_LEAVE_MESSAGE) / \
igmpv2(group=inet_atol(options.igmp_group))
c.fixup()
out = output.write(c.bytes, len(c.bytes))
def test_ethernet_write(self):
"""This test writes a fake ethernet packet to a dump file."""
from pcs.pcap import DLT_EN10MB
file = PcapDumpConnector("etherdump.out", DLT_EN10MB)
# create one packet, copy its bytes, then compare their fields
ether = ethernet()
assert (ethernet != None)
ether.src = "\x00\x00\x00\x00\x00\x00"
ether.dst = "\xff\xff\xff\xff\xff\xff"
ether.type = 2048
file.write(ether.bytes)
def ICMPv6_pack_message(iface, pkt_type):
#procedure to get iface address
#iface = 'wlan2' #interface
addrs = netifaces.ifaddresses(iface)
ll_src_addr = addrs[netifaces.AF_INET6][1]['addr']
ll_src_addr = ll_src_addr[:ll_src_addr.find('%')]
gl_src_addr = addrs[netifaces.AF_INET6][0]['addr']
#gl_src_addr = gl_src_addr[:gl_src_addr.find('%')]
#print gl_src_addr
#print ll_src_addr
# building ethernet header
e = ethernet()
mac = netifaces.ifaddresses(iface)[netifaces.AF_LINK][0]['addr'] #geting mac addr
e.src = ether_atob(mac)
e.dst = ether_atob('ff:ff:ff:ff:ff:ff')
e.type = 0x86dd #ETHERTYPE_IPV6
#building ipv6 packet basic info
ip6 = ipv6()
ip6.version = 6
#cs = icmp6.cksum(ip6) & 0xffff
# building ipv6 header
ip6.traffic_class = 0x0a
ip6.flow = 0
ip6.length = 50
ip6.next_header = 58#IPPROTO_ICMPV6
ip6.hop = 255
ip6.src = pcs.inet_pton(AF_INET6, ll_src_addr)
ip6.dst = pcs.inet_pton(AF_INET6, 'ff02::1')
# building icmpv6
icmp6 = icmpv6(ICMP6_ECHO_REQUEST) #ICMP6_ECHO_REPLY
icmp6.code = 0
icmp6.seq = 0
icmp6.id = 0x03e8
icmp6.checksum = 0x0 #kt.calc_checksums()
data = payload(payload = gl_src_addr) #message data
ip6.length = len(icmp6.getbytes()) + len(data) #recalculation of packet length
if(pkt_type == 0):
icmp6.cheksum = 0xf220
ip6.traffic_class = 0x0a
pkt = pcs.Chain([e, ip6, icmp6, data]) #appendin packet
else:
icmp6.checksum = 0xe91b
ip6.traffic_class = 0x0f
pkt = pcs.Chain([e, ip6, icmp6]) #appendin packet
#icmp6.checksum = pkt.calc_checksums()
pkt.encode()
#print pkt
return pkt
def executeTrigger(self, pkt):
"""
Execute the trigger action the pkt which satisfies the trigger's
action conditions.
@param pkt:
The packet against which a trigger is actioned
@return:
A trigger Chain for transmission, None if action is internal
"""
retChain = None
# Action based on trigger type
if self.action == Trigger.Trigger.STOP:
# Test if pkt is really a HTTP packet
(p, i) = pkt.chain().find_first_of(pcs.packets.http.httpResponse)
if not p:
self.logger.debug("HTTP trigger.STOP:\n%s" % pkt.chain())
raise PcapReplayError(Trigger.ERR_PCAPR_TRIGGER_INVALID,
'executeTrigger : Invalid trigger/pkt ' +
'pair execution')
# Create a terminating response chain for xmit by the caller
ether = pkt
e = ethernet()
e.dst = ether.src
e.src = ether.dst
e.type = ether.type
ip = pkt.data
if type(ip) == pcs.packets.ipv4.ipv4:
i = ipv4()
i.tos = ip.tos
i.protocol = ip.protocol
i.id = 0
i.flags = 0
elif type(ip) == pcs.packets.ipv6.ipv6:
i = ipv6()
i.traffic_class = ip.traffic_class
i.next_header = ip.next_header
i.src = ip.dst
i.dst = ip.src
tcp = pkt.data.data
t = pcs.packets.tcp.tcp()
t.sport = tcp.dport
t.dport = tcp.sport
t.reset = 1
t.ack = 1
t.ack_number = tcp.ack_number
t.sequence = tcp.sequence
t.data = None
retChain = pcs.Chain([e, i, t])
retChain.fixup()
return retChain
def test_ethernet_write(self):
"""This test writes a fake ethernet packet to a dump file."""
from pcs.pcap import DLT_EN10MB
file = PcapDumpConnector("etherdump.out", DLT_EN10MB)
# create one packet, copy its bytes, then compare their fields
ether = ethernet()
assert (ethernet != None)
ether.src = "\x00\x00\x00\x00\x00\x00"
ether.dst = "\xff\xff\xff\xff\xff\xff"
ether.type = 2048
file.write(ether.bytes)
def test_ethernet(self):
# create one packet, copy its bytes, then compare their fields
ether = ethernet()
assert (ethernet != None)
ether.src = "\x00\x00\x00\x00\x00\x00"
ether.dst = "\xff\xff\xff\xff\xff\xff"
ether.type = 2048
# Create a packet to compare against
ethernew = ethernet()
ethernew.decode(ether.bytes)
self.assertEqual(ether.bytes, ethernew.bytes, "bytes not equal")
self.assertEqual(ether.src, ethernew.src,
"sources not equal ether %s ethernew %s" %
(ether.src, ethernew.src))
self.assertEqual(ether.dst, ethernew.dst,
"destinations not equal ether %s ethernew %s" %
(ether.dst, ethernew.dst))
self.assertEqual(ether.type, ethernew.type,
"types not equal ether %s ethernew %s" %
(ether.type, ethernew.type))
def test_ethernet(self):
# create one packet, copy its bytes, then compare their fields
ether = ethernet()
assert (ethernet != None)
ether.src = "\x00\x00\x00\x00\x00\x00"
ether.dst = "\xff\xff\xff\xff\xff\xff"
ether.type = 2048
# Create a packet to compare against
ethernew = ethernet()
ethernew.decode(ether.bytes)
self.assertEqual(ether.bytes, ethernew.bytes, "bytes not equal")
self.assertEqual(ether.src, ethernew.src,
"sources not equal ether %s ethernew %s" %
(ether.src, ethernew.src))
self.assertEqual(ether.dst, ethernew.dst,
"destinations not equal ether %s ethernew %s" %
(ether.dst, ethernew.dst))
self.assertEqual(ether.type, ethernew.type,
"types not equal ether %s ethernew %s" %
(ether.type, ethernew.type))
def main():
from optparse import OptionParser
parser = OptionParser()
parser.add_option("-I", "--ether_iface",
dest="ether_iface", default=None,
help="The name of the source interface.")
parser.add_option("-e", "--ether_source",
dest="ether_source", default=None,
help="The host Ethernet source address.")
parser.add_option("-s", "--ip_source",
dest="ip_source", default=None,
help="The IP source address.")
parser.add_option("-G", "--igmp_group",
dest="igmp_group", default=None,
help="The IPv4 group to spoof an IGMPv3 leave for.")
(options, args) = parser.parse_args()
if options.ether_iface is None or \
options.ether_source is None or \
options.ip_source is None or \
options.igmp_group is None:
print "Non-optional argument missing."
return
# Create an IGMPv3 change-to-include report for the given group
# with no sources, which means we're leaving the group.
# IGMPv3 Host Reports are always sent to IGMP.MCAST.NET (224.0.0.22),
# and must always contain the Router Alert option.
c = ethernet(src=ether_atob(options.ether_source), \
dst=ETHER_MAP_IP_MULTICAST(INADDR_ALLRPTS_GROUP)) / \
ipv4(src=inet_atol(options.ip_source), dst=INADDR_ALLRPTS_GROUP, \
ttl=1, flags=IP_DF, options=[ipvt4opt(IPOPT_RA)]) / \
igmp(type=IGMP_v3_HOST_MEMBERSHIP_REPORT) / \
igmpv3.report(records=[GroupRecordField("", \
group=inet_atol(options.igmp_group), \
type=IGMP_CHANGE_TO_INCLUDE)])
c.fixup()
# Send it.
output = PcapConnector(options.ether_iface)
out = output.write(c.bytes, len(c.bytes))
def test_ethernet_eq(self):
"Test whether the eq function works for ethernet"
ether = ethernet()
assert (ether != None)
ether.src = "\x00\x00\x00\x00\x00\x00"
ether.dst = "\xff\xff\xff\xff\xff\xff"
ether.type = 2048
# Create a packet to compare against
ethernew = ethernet()
ethernew.decode(ether.bytes)
self.assertEqual(ether.bytes, ethernew.bytes, "bytes not equal")
self.assertEqual(ether.src, ethernew.src,
"sources not equal ether %s ethernew %s" %
(ether.src, ethernew.src))
self.assertEqual(ether.dst, ethernew.dst,
"destinations not equal ether %s ethernew %s" %
(ether.dst, ethernew.dst))
self.assertEqual(ether.type, ethernew.type,
"types not equal ether %s ethernew %s" %
(ether.type, ethernew.type))
self.assertEqual(ether, ethernew, "ether != to ethernew but should be")
def test_ethernet_println(self):
"""This test reads from a pre-stored pcap file generated with
tcpdump and ping on an ethernet interface and tests the
println method to make sure the correct values are printed."""
file = PcapConnector("etherping.out")
packet = file.read()
ether = ethernet(packet[0:file.dloff])
assert (ether != None)
string = ether.println()
test_string = "<Ethernet: dst: 0:10:db:3a:3a:77 src: 0:d:93:44:fa:62 type: 0x800>"
self.assertEqual(string, test_string,
"strings are not equal \nexpected %s \ngot %s " %
(test_string, string))
def test_ethernet_println(self):
"""This test reads from a pre-stored pcap file generated with
tcpdump and ping on an ethernet interface and tests the
__str__ method to make sure the correct values are printed."""
file = PcapConnector("etherping.out")
packet = file.read()
ether = ethernet(packet[0:file.dloff])
assert (ether != None)
test_string = "<Ethernet: dst: 0:10:db:3a:3a:77 src: 0:d:93:44:fa:62 type: 0x800>"
string = ether.println()
self.assertEqual(string, test_string,
"strings are not equal \nexpected %s \ngot %s " %
(test_string, string))
def main():
from optparse import OptionParser
parser = OptionParser()
parser.add_option("-I", "--ether_iface",
dest="ether_iface", default=None,
help="The name of the source interface.")
parser.add_option("-e", "--ether_source",
dest="ether_source", default=None,
help="The host Ethernet source address.")
parser.add_option("-s", "--ip_source",
dest="ip_source", default=None,
help="The IP source address.")
parser.add_option("-G", "--igmp_group",
dest="igmp_group", default=None,
help="The IPv4 group to spoof a leave message for.")
parser.add_option("-A", "--no-router-alert",
action="store_true", dest="no_ra",
help="Disable the use of the IP Router Alert option.")
(options, args) = parser.parse_args()
if options.igmp_group is None or \
options.ether_source is None or \
options.ether_iface is None or \
options.ip_source is None:
print "A required argument is missing."
return
output = PcapConnector(options.ether_iface)
c = ethernet(src=ether_atob(options.ether_source), \
dst=ETHER_MAP_IP_MULTICAST(INADDR_ALLRTRS_GROUP)) / \
ipv4(flags=IP_DF, id=123, ttl=1, \
src=inet_atol(options.ip_source), \
dst=INADDR_ALLRTRS_GROUP) / \
igmp(type=IGMP_HOST_LEAVE_MESSAGE) / \
igmpv2(group=inet_atol(options.igmp_group))
c.fixup()
out = output.write(c.bytes, len(c.bytes))
def createIpv6Pkt(self, ipproto=6, layer1=None, layer2=None):
e = ethernet()
e.dst = self.dmac
e.src = self.smac
e.type = 0x86dd
i = ipv6()
i.next_header = ipproto
i.src = self.src6
i.dst = self.dst6
e.data = i
i.data = layer1
layer1.data = layer2
if layer2 == None:
retChain = pcs.Chain([e, i, layer1]).packets[0]
else:
retChain = pcs.Chain([e, i, layer1, layer2]).packets[0]
return retChain
def createIpv4Pkt(self, ipproto=6, layer1=None, layer2=None):
e = ethernet()
e.dst = self.dmac
e.src = self.smac
e.type = 0x0800
i = ipv4()
i.protocol = ipproto
i.id = 0
i.flags = 0
i.src = self.src
i.dst = self.dst
e.data = i
i.data = layer1
layer1.data = layer2
if layer2 == None:
retChain = pcs.Chain([e, i, layer1]).packets[0]
else:
retChain = pcs.Chain([e, i, layer1, layer2]).packets[0]
return retChain
def main():
from optparse import OptionParser
parser = OptionParser()
parser.add_option("-I",
"--ether_iface",
dest="ether_iface",
default=None,
help="The name of the source interface.")
parser.add_option("-e",
"--ether_source",
dest="ether_source",
default=None,
help="The host Ethernet source address.")
parser.add_option("-g",
"--ether_dest",
dest="ether_dest",
default=None,
help="The host Ethernet destination address.")
parser.add_option("-s",
"--ip_source",
dest="ip_source",
default=None,
help="The IP source address.")
parser.add_option("-D",
"--ip_dest",
dest="ip_dest",
default=None,
help="The IP destination address.")
parser.add_option("-G",
"--igmp_group",
dest="igmp_group",
default=None,
help="The IPv4 group to query.")
parser.add_option("-S",
"--igmp_sources",
dest="igmp_sources",
default=None,
help="Comma-delimited list of IPv4 sources for "
"a group-and-source specific query.")
parser.add_option("-M",
"--igmp_maxresp",
dest="igmp_maxresp",
default=None,
help="The maximum time for end-stations to "
"respond (in seconds).")
parser.add_option("-c",
"--count",
dest="count",
default=None,
help="Stop after receiving at least count responses.")
parser.add_option("-2",
"--igmp_v2_listen",
action="store_true",
dest="igmp_v2_listen",
help="Listen for responses from IGMPv2 end-stations.")
parser.add_option("-R",
"--igmp_robustness",
dest="igmp_robustness",
default=None,
help="Querier Robustness (default 2)")
parser.add_option("-Q",
"--igmp_qqic",
dest="igmp_qqic",
default=None,
help="Querier's Query Interval (default 10s)")
(options, args) = parser.parse_args()
if options.ether_iface is None or \
options.ether_source is None or \
options.ip_source is None or \
options.count is None:
print "Non-optional argument missing."
return
#if options.ip_dest is not None and options.ether_dest is None:
# print "Non-optional argument missing."
# return
maxresp = 10 * 10
if options.igmp_maxresp is not None:
maxresp = int(options.igmp_maxresp) * 10 # in units of deciseconds
#
# Parse source list for a GSR query.
#
sources = []
if options.igmp_sources is not None:
if options.igmp_group is None:
raise "A group must be specified for a GSR query."
else:
for source in options.igmp_sources.split(','):
sources.append(inet_atol(source))
if len(sources) == 0:
raise "Error parsing source list."
# Set up the vanilla packet
if options.ether_dest is not None:
edst = ether_atob(options.ether_dest)
else:
edst = ETHER_MAP_IP_MULTICAST(INADDR_ALLHOSTS_GROUP)
c = ethernet(src=ether_atob(options.ether_source), dst=edst) / \
ipv4(flags=IP_DF, ttl=1, src=inet_atol(options.ip_source)) / \
igmp(type=IGMP_HOST_MEMBERSHIP_QUERY, code=maxresp) / \
igmpv3.query()
ip = c.packets[1]
q = c.packets[3]
# IGMPv3 General Queries are always sent to ALL-SYSTEMS.MCAST.NET.
# However we allow this to be overidden for protocol testing -- Windows,
# in particular, doesn't seem to respond.
#
# We expect reports on 224.0.0.22.
# Queries don't contain the Router Alert option as they are
# destined for end stations, not routers.
if options.igmp_robustness is not None:
q.qrv = int(options.igmp_robustness)
else:
q.qrv = 2 # SHOULD NOT be 1, MUST NOT be 0
if options.igmp_qqic is not None:
q.qqic = int(options.igmp_qqic)
else:
q.qqic = 10 # I query every 10 seconds
if options.igmp_group is None:
# General query.
if options.ip_dest is not None:
ip.dst = inet_atol(options.ip_dest)
else:
ip.dst = INADDR_ALLHOSTS_GROUP
q.group = INADDR_ANY
else:
# Group-specific query, possibly with sources.
if options.ip_dest is not None:
ip.dst = inet_atol(options.ip_dest)
else:
ip.dst = inet_atol(options.igmp_group)
q.group = ip.dst
if IN_MULTICAST(ip.dst) is True and \
options.ether_dest is None:
c.packets[0].dst = ETHER_MAP_IP_MULTICAST(ip.dst)
for src in sources:
q.sources.append(pcs.Field("", 32, default=src))
c.fixup()
input = PcapConnector(options.ether_iface)
input.setfilter("igmp")
output = PcapConnector(options.ether_iface)
out = output.write(c.bytes, len(c.bytes))
#
# Wait for up to 'count' responses to the query to arrive and print them.
# If options.igmp_v2_listen is True, also count responses from
# end-stations which respond with IGMPv2.
#
# TODO: Pretty-print IGMPv3 reports.
#
count = int(options.count)
while count > 0:
packet = input.readpkt()
chain = packet.chain()
if ((chain.packets[2].type == IGMP_v3_HOST_MEMBERSHIP_REPORT) or
((chain.packets[2].type == IGMP_v2_HOST_MEMBERSHIP_REPORT) and \
(options.igmp_v2_listen is True))):
version = 3
if chain.packets[2].type == IGMP_v2_HOST_MEMBERSHIP_REPORT:
version = 2
#print chain.packets[2].println()
print "%s responded to query with IGMPv%d." % \
((inet_ntop(AF_INET, struct.pack('!L', chain.packets[1].src))),
version)
count -= 1
def main():
from optparse import OptionParser
parser = OptionParser()
parser.add_option("-c", "--count",
dest="count", default=1,
help="Stop after sending (and recieving) count ECHO_RESPONSE packets..")
parser.add_option("-D", "--dont_fragment",
dest="df", default=False,
help="Set the Don't Fragment bit.")
parser.add_option("-s", "--ip_source",
dest="ip_source", default=None,
help="The IP source address.")
parser.add_option("-d", "--ip_dest",
dest="ip_dest", default=None,
help="The IP destination address.")
parser.add_option("-I", "--ether_iface",
dest="ether_iface", default=None,
help="The name of the source interface.")
parser.add_option("-e", "--ether_source",
dest="ether_source", default=None,
help="The host Ethernet source address.")
parser.add_option("-g", "--ether_dest",
dest="ether_dest", default=None,
help="The gateway Ethernet destination address.")
parser.add_option("-r", "--rt_hop",
dest="hop", default="::",
help="The intermediate router address.")
(options, args) = parser.parse_args()
rtcount = 1
# plen is 8 + rtcount * 16 for rt hdr, 8 for ICMP, 6 for foobar
plen = 8 + rtcount * 16 + 8 + 6
c = ethernet(src=ether_atob(options.ether_source), \
dst=ether_atob(options.ether_dest)) / \
ipv6(hop=64, next_header = 43, length = plen, \
src=inet_pton(AF_INET6, options.ip_source), \
dst=inet_pton(AF_INET6, options.ip_dest)) / \
ipv6ext.rt_ext(next_header = 58, \
addr1 = inet_pton(AF_INET6, options.hop)) / \
icmpv6(type=ICMP6_ECHO_REQUEST, id=12345) / \
payload(payload="foobar")
c.calc_lengths()
#
# Increment ICMP echo sequence number with each iteration.
#
output = PcapConnector(options.ether_iface)
ip = c.packets[1]
icmpecho = c.packets[3]
count = int(options.count)
while (count > 0):
# c.calc_checksums()
# icmpecho.cksum = icmpv6.cksum(icmpecho, ip)
# icmpecho.calc_checksum()
c.encode()
out = output.write(c.bytes, len(c.bytes))
# packet = input.read()
# print packet
sleep(1)
count -= 1
icmpecho.sequence += 1
def main():
from optparse import OptionParser
parser = OptionParser()
parser.add_option("-I",
"--ether_iface",
dest="ether_iface",
default=None,
help="The name of the source interface.")
parser.add_option("-e",
"--ether_source",
dest="ether_source",
default=None,
help="The host Ethernet source address.")
parser.add_option("-s",
"--ip_source",
dest="ip_source",
default=None,
help="The IP source address.")
parser.add_option("-G",
"--igmp_group",
dest="igmp_group",
default=None,
help="The IPv4 group for a group-specific query. "
"If omitted, send a general query.")
parser.add_option("-M",
"--maxresp",
dest="igmp_maxresp",
default=None,
help="The maximum time for end-stations to respond "
"(in seconds).")
parser.add_option("-c",
"--count",
dest="count",
default=None,
help="Stop after receiving at least count responses.")
(options, args) = parser.parse_args()
if options.ether_iface is None or \
options.ether_source is None or \
options.ip_source is None or \
options.count is None:
print "Non-optional argument missing."
return
maxresp = 3 * 10
if options.igmp_maxresp is not None:
maxresp = int(options.igmp_maxresp) * 10 # in units of deciseconds
if options.igmp_group is None:
# General query.
dst = INADDR_ALLHOSTS_GROUP
group = INADDR_ANY
else:
# Group-specific query.
dst = inet_atol(options.igmp_group)
group = dst
# Queries don't contain the Router Alert option as they are
# destined for end stations, not routers.
c = ethernet(src=ether_atob(options.ether_source), \
dst=ETHER_MAP_IP_MULTICAST(dst)) / \
ipv4(flags=IP_DF, ttl=1, \
src=inet_atol(options.ip_source), \
dst=dst) / \
igmp(type=IGMP_HOST_MEMBERSHIP_QUERY, code=maxresp) / \
igmpv2(group=group)
c.fixup()
input = PcapConnector(options.ether_iface)
input.setfilter("igmp")
output = PcapConnector(options.ether_iface)
out = output.write(c.bytes, len(c.bytes))
#
# Wait for up to 'count' responses to the query to arrive and print them.
#
count = int(options.count)
while count > 0:
packet = input.readpkt()
chain = packet.chain()
if chain.packets[2].type == IGMP_v2_HOST_MEMBERSHIP_REPORT:
#print chain.packets[2].println()
print "%s is in %s" % \
(inet_ntop(AF_INET, struct.pack('!L', chain.packets[1].src)), \
inet_ntop(AF_INET, struct.pack('!L', chain.packets[3].group)))
count -= 1
def main():
from optparse import OptionParser
parser = OptionParser()
parser.add_option("-f", "--file",
dest="file", default=None,
help="tcpdump file to read from")
(options, args) = parser.parse_args()
file = pcs.PcapConnector(options.file)
srcmap = {}
packets = 0
ip_cnt = 0
non_ip_cnt = 0
tcp_cnt = 0
udp_cnt = 0
icmp_cnt = 0
arp_cnt = 0
done = False
while not done:
ip = None
try:
packet = file.read()
except:
done = True
packets += 1
ether = ethernet(packet[0:len(packet)])
if type(ether.data) == pcs.packets.ipv4.ipv4:
ip_cnt += 1
ip = ether.data
else:
non_ip_cnt += 1
if type(ether.data) == pcs.packets.arp.arp:
arp_cnt += 1
if ip != None:
if type(ip.data) == pcs.packets.icmpv4.icmpv4:
icmp_cnt += 1
if type(ip.data) == pcs.packets.udp.udp:
udp_cnt += 1
if type(ip.data) == pcs.packets.tcp.tcp:
tcp_cnt += 1
if ip.src in srcmap:
srcmap[ip.src] += 1
else:
srcmap[ip.src] = 1
print "%d packets in dumpfile" % packets
print "%d unique source IPs" % len(srcmap)
print "%d ARP packets" % arp_cnt
print "%d IPv4 packets" % ip_cnt
print "%d ICMPv4 packets" % icmp_cnt
print "%d UDP packets" % udp_cnt
print "%d TCP packets" % tcp_cnt
print "Top 10 source addresses were"
hit_list = sorted(srcmap.itervalues(), reverse = True)
for i in range(1,10):
for addr in srcmap.items():
if addr[1] == hit_list[i]:
print "Address %s\t Count %s\t Percentage %f" % (inet_ntop(AF_INET, struct.pack('!L', addr[0])), addr[1], (float(addr[1]) / float(packets)) * float(100))
def test_stringfield(self):
ether = ethernet()
self.assertRaises(pcs.FieldBoundsError, setattr, ether, 'src',
"\x00\x00\x00\x00\x00\x00\x00")
def main():
from optparse import OptionParser
parser = OptionParser()
parser.add_option("-I", "--ether_iface",
dest="ether_iface", default=None,
help="The name of the source interface.")
parser.add_option("-e", "--ether_source",
dest="ether_source", default=None,
help="The host Ethernet source address.")
parser.add_option("-g", "--ether_dest",
dest="ether_dest", default=None,
help="The host Ethernet destination address.")
parser.add_option("-s", "--ip_source",
dest="ip_source", default=None,
help="The IP source address.")
parser.add_option("-D", "--ip_dest",
dest="ip_dest", default=None,
help="The IP destination address.")
parser.add_option("-G", "--igmp_group",
dest="igmp_group", default=None,
help="The IPv4 group to query.")
parser.add_option("-S", "--igmp_sources",
dest="igmp_sources", default=None,
help="Comma-delimited list of IPv4 sources for "
"a group-and-source specific query.")
parser.add_option("-M", "--igmp_maxresp",
dest="igmp_maxresp", default=None,
help="The maximum time for end-stations to "
"respond (in seconds).")
parser.add_option("-c", "--count",
dest="count", default=None,
help="Stop after receiving at least count responses.")
parser.add_option("-2", "--igmp_v2_listen",
action="store_true", dest="igmp_v2_listen",
help="Listen for responses from IGMPv2 end-stations.")
parser.add_option("-R", "--igmp_robustness",
dest="igmp_robustness", default=None,
help="Querier Robustness (default 2)")
parser.add_option("-Q", "--igmp_qqic",
dest="igmp_qqic", default=None,
help="Querier's Query Interval (default 10s)")
(options, args) = parser.parse_args()
if options.ether_iface is None or \
options.ether_source is None or \
options.ip_source is None or \
options.count is None:
print "Non-optional argument missing."
return
#if options.ip_dest is not None and options.ether_dest is None:
# print "Non-optional argument missing."
# return
maxresp = 10 * 10
if options.igmp_maxresp is not None:
maxresp = int(options.igmp_maxresp) * 10 # in units of deciseconds
#
# Parse source list for a GSR query.
#
sources = []
if options.igmp_sources is not None:
if options.igmp_group is None:
raise "A group must be specified for a GSR query."
else:
for source in options.igmp_sources.split(','):
sources.append(inet_atol(source))
if len(sources) == 0:
raise "Error parsing source list."
# Set up the vanilla packet
if options.ether_dest is not None:
edst = ether_atob(options.ether_dest)
else:
edst = ETHER_MAP_IP_MULTICAST(INADDR_ALLHOSTS_GROUP)
c = ethernet(src=ether_atob(options.ether_source), dst=edst) / \
ipv4(flags=IP_DF, ttl=1, src=inet_atol(options.ip_source)) / \
igmp(type=IGMP_HOST_MEMBERSHIP_QUERY, code=maxresp) / \
igmpv3.query()
ip = c.packets[1]
q = c.packets[3]
# IGMPv3 General Queries are always sent to ALL-SYSTEMS.MCAST.NET.
# However we allow this to be overidden for protocol testing -- Windows,
# in particular, doesn't seem to respond.
#
# We expect reports on 224.0.0.22.
# Queries don't contain the Router Alert option as they are
# destined for end stations, not routers.
if options.igmp_robustness is not None:
q.qrv = int(options.igmp_robustness)
else:
q.qrv = 2 # SHOULD NOT be 1, MUST NOT be 0
if options.igmp_qqic is not None:
q.qqic = int(options.igmp_qqic)
else:
q.qqic = 10 # I query every 10 seconds
if options.igmp_group is None:
# General query.
if options.ip_dest is not None:
ip.dst = inet_atol(options.ip_dest)
else:
ip.dst = INADDR_ALLHOSTS_GROUP
q.group = INADDR_ANY
else:
# Group-specific query, possibly with sources.
if options.ip_dest is not None:
ip.dst = inet_atol(options.ip_dest)
else:
ip.dst = inet_atol(options.igmp_group)
q.group = ip.dst
if IN_MULTICAST(ip.dst) is True and \
options.ether_dest is None:
c.packets[0].dst = ETHER_MAP_IP_MULTICAST(ip.dst)
for src in sources:
q.sources.append(pcs.Field("", 32, default = src))
c.fixup()
input = PcapConnector(options.ether_iface)
input.setfilter("igmp")
output = PcapConnector(options.ether_iface)
out = output.write(c.bytes, len(c.bytes))
#
# Wait for up to 'count' responses to the query to arrive and print them.
# If options.igmp_v2_listen is True, also count responses from
# end-stations which respond with IGMPv2.
#
# TODO: Pretty-print IGMPv3 reports.
#
count = int(options.count)
while count > 0:
packet = input.readpkt()
chain = packet.chain()
if ((chain.packets[2].type == IGMP_v3_HOST_MEMBERSHIP_REPORT) or
((chain.packets[2].type == IGMP_v2_HOST_MEMBERSHIP_REPORT) and \
(options.igmp_v2_listen is True))):
version = 3
if chain.packets[2].type == IGMP_v2_HOST_MEMBERSHIP_REPORT:
version = 2
#print chain.packets[2].println()
print "%s responded to query with IGMPv%d." % \
((inet_ntop(AF_INET, struct.pack('!L', chain.packets[1].src))),
version)
count -= 1
def main():
from optparse import OptionParser
parser = OptionParser()
parser.add_option("-I", "--ether_iface",
dest="ether_iface", default=None,
help="The name of the source interface.")
parser.add_option("-e", "--ether_source",
dest="ether_source", default=None,
help="The host Ethernet source address.")
parser.add_option("-s", "--ip_source",
dest="ip_source", default=None,
help="The IP source address.")
parser.add_option("-G", "--igmp_group",
dest="igmp_group", default=None,
help="The IPv4 group for a group-specific query. "
"If omitted, send a general query.")
parser.add_option("-M", "--maxresp",
dest="igmp_maxresp", default=None,
help="The maximum time for end-stations to respond "
"(in seconds).")
parser.add_option("-c", "--count",
dest="count", default=None,
help="Stop after receiving at least count responses.")
(options, args) = parser.parse_args()
if options.ether_iface is None or \
options.ether_source is None or \
options.ip_source is None or \
options.count is None:
print "Non-optional argument missing."
return
maxresp = 3 * 10
if options.igmp_maxresp is not None:
maxresp = int(options.igmp_maxresp) * 10 # in units of deciseconds
if options.igmp_group is None:
# General query.
dst = INADDR_ALLHOSTS_GROUP
group = INADDR_ANY
else:
# Group-specific query.
dst = inet_atol(options.igmp_group)
group = dst
# Queries don't contain the Router Alert option as they are
# destined for end stations, not routers.
c = ethernet(src=ether_atob(options.ether_source), \
dst=ETHER_MAP_IP_MULTICAST(dst)) / \
ipv4(flags=IP_DF, ttl=1, \
src=inet_atol(options.ip_source), \
dst=dst) / \
igmp(type=IGMP_HOST_MEMBERSHIP_QUERY, code=maxresp) / \
igmpv2(group=group)
c.fixup()
input = PcapConnector(options.ether_iface)
input.setfilter("igmp")
output = PcapConnector(options.ether_iface)
out = output.write(c.bytes, len(c.bytes))
#
# Wait for up to 'count' responses to the query to arrive and print them.
#
count = int(options.count)
while count > 0:
packet = input.readpkt()
chain = packet.chain()
if chain.packets[2].type == IGMP_v2_HOST_MEMBERSHIP_REPORT:
#print chain.packets[2].println()
print "%s is in %s" % \
(inet_ntop(AF_INET, struct.pack('!L', chain.packets[1].src)), \
inet_ntop(AF_INET, struct.pack('!L', chain.packets[3].group)))
count -= 1
def main():
from optparse import OptionParser
parser = OptionParser()
parser.add_option("-I",
"--ether_iface",
dest="ether_iface",
default=None,
help="The name of the source interface.")
parser.add_option("-e",
"--ether_source",
dest="ether_source",
default=None,
help="The host Ethernet source address.")
parser.add_option("-s",
"--ip_source",
dest="ip_source",
default=None,
help="The IP source address.")
parser.add_option("-G",
"--igmp_group",
dest="igmp_group",
default=None,
help="The IPv4 group for a group-specific query. "
"If omitted, send a general query.")
parser.add_option("-S",
"--seconds",
dest="seconds",
default=1.0,
help="Number of seconds between packets.")
parser.add_option("-c",
"--count",
dest="count",
default=None,
help="Stop after sending count packets.")
(options, args) = parser.parse_args()
if options.ether_iface is None or \
options.ether_source is None or \
options.ip_source is None or \
options.count is None:
print "Non-optional argument missing."
return
maxresp = 3 * 10
if options.igmp_group is None:
# General query.
dst = INADDR_ALLHOSTS_GROUP
group = INADDR_ANY
else:
# Group-specific query.
dst = inet_atol(options.igmp_group)
group = dst
# Queries don't contain the Router Alert option as they are
# destined for end stations, not routers.
c = ethernet(src=ether_atob(options.ether_source), \
dst=ETHER_MAP_IP_MULTICAST(dst)) / \
ipv4(flags=IP_DF, ttl=1, \
src=inet_atol(options.ip_source), \
dst=dst) / \
igmp(type=IGMP_v2_HOST_MEMBERSHIP_REPORT, code=maxresp) / \
igmpv2(group=group)
c.fixup()
output = PcapConnector(options.ether_iface)
#
# Send count packets, delayed by seconds
#
count = int(options.count)
if count < 0:
count = sys.maxint
while count > 0:
out = output.write(c.bytes, len(c.bytes))
count -= 1
sleep(float(options.seconds))
def main():
from optparse import OptionParser
parser = OptionParser()
parser.add_option("-I", "--ether_iface",
dest="ether_iface", default=None,
help="The name of the source interface.")
parser.add_option("-e", "--ether_source",
dest="ether_source", default=None,
help="The host Ethernet source address.")
parser.add_option("-G", "--ether_dest",
dest="ether_dest", default=None,
help="The gateway Ethernet destination address.")
parser.add_option("-s", "--ip_source",
dest="ip_source", default=None,
help="The IP source address.")
parser.add_option("-d", "--ip_dest",
dest="ip_dest", default=None,
help="The IP destination address.")
parser.add_option("-c", "--count",
dest="count", default=None,
help="Stop after receiving at least count responses.")
(options, args) = parser.parse_args()
if options.ether_iface is None or \
options.ether_source is None or \
options.ether_dest is None or \
options.ip_source is None or \
options.count is None:
print "Non-optional argument missing."
return
if options.ip_dest is None:
idst = INADDR_DVMRP_GROUP
else:
idst = inet_atol(options.ip_dest)
c = ethernet(src=ether_atob(options.ether_source), \
dst=ether_atob(options.ether_dest)) / \
ipv4(ttl=1, src=inet_atol(options.ip_source), dst=idst) / \
igmp(type=IGMP_DVMRP, code=DVMRP_ASK_NEIGHBORS2) / \
dvmrp(capabilities=DVMRP_CAP_DEFAULT, minor=0xFF, major=3)
#
# DVMRP "ask neighbors" does not contain the Router Alert option,
# because DVMRP traffic is usually tunneled, and we don't need to
# wake up every router on the path.
#
# The Ask_neighbors2 payload is: reserved, caps, minor, major:
# 0x00, 0E, 0xFF, 0x03 is how mrinfo fills this out (DVMRPv3 compliant).
#
# PIM itself knows nothing about these messages, however, a DVMRP router
# which handles these messages MAY tell you if it's peering with other
# PIM routers (I believe only Ciscos do this).
#
c.calc_lengths()
c.calc_checksums()
c.encode()
input = PcapConnector(options.ether_iface)
input.setfilter("igmp")
output = PcapConnector(options.ether_iface)
out = output.write(c.bytes, len(c.bytes))
#
# Wait for up to 'count' responses to the query to arrive and print them.
#
count = int(options.count)
while count > 0:
packet = input.readpkt()
chain = packet.chain()
if chain.packets[2].type == IGMP_DVMRP:
print chain.packets[2].println()
#print "%s is in %s" % \
# (inet_ntop(AF_INET, struct.pack('!L', chain.packets[1].src)), \
# inet_ntop(AF_INET, struct.pack('!L', chain.packets[2].group)))
count -= 1
class PcapReplayTestCase(PcapReplayTestBase):
"""
PcapReplay test cases
"""
def setUp(self):
PcapReplayTestBase.setUp(self)
self.tmpPcapFile = '/tmp/pcap.cap'
self.pcr = None
self.proto = UDP
self.flowType = UdpFlow.UdpFlow
self.sT = '172.16.0.20'
self.dT = '10.2.1.11'
self.src = NetworkInfo.netPToN(ipv4=self.sT)
self.dst = NetworkInfo.netPToN(ipv4=self.dT)
self.sport = 3565
self.dport = 53
self.proto6 = TCP
self.flowType6 = TcpFlow.TcpFlow
self.s6T = '2301::10:20:2:2'
self.d6T = '2302::10:20:40:2'
self.src6 = NetworkInfo.netPToN(ipv6=self.s6T)
self.dst6 = NetworkInfo.netPToN(ipv6=self.d6T)
self.sport6 = 1106
self.dport6 = 80
self.protoM = GENERIC
self.flowTypeM = GenericFlow.GenericFlow
self.msT = '0:c:29:f2:c8:a7'
self.mdT = '0:1:6c:9e:73:7b'
self.smac = NetworkInfo.macPToN(self.msT)
self.dmac = NetworkInfo.macPToN(self.mdT)
self.pcapDumpPktNum = 27
self.pcapDumpProtoPktNum = {ICMP: 2, TCP: 14, UDP: 4, GENERIC: 7}
self.pcapDumpFlowNum = {ICMP: 1, TCP: 2, UDP: 2, GENERIC: 3}
self.pcapDump = array.array('b', [
-44, -61, -78, -95, 2, 0, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 13, 0, 1,
0, 1, 0, 0, 0, 102, 35, 99, 60, -32, 4, 7, 0, 74, 0, 0, 0, 74, 0,
0, 0, 8, 0, 32, -94, -95, -94, 0, -112, 39, -3, 55, 71, 8, 0, 69,
0, 0, 60, 50, 29, 64, 0, 64, 6, -93, 82, -84, 16, 6, 100, -84, 16,
6, -56, 11, 54, 0, 80, -63, 127, 31, -15, 0, 0, 0, 0, -96, 2, 62,
-68, 84, -105, 0, 0, 2, 4, 5, -76, 4, 2, 8, 10, 21, -95, 76, -49,
0, 0, 0, 0, 1, 3, 3, 0, 102, 35, 99, 60, -32, 4, 7, 0, 78, 0, 0, 0,
78, 0, 0, 0, 0, -112, 39, -3, 55, 71, 8, 0, 32, -94, -95, -94, 8,
0, 69, 0, 0, 64, -13, -18, 64, 0, -1, 6, 34, 124, -84, 16, 6, -56,
-84, 16, 6, 100, 0, 80, 11, 54, 3, -67, 44, -16, -63, 127, 31, -14,
-80, 18, 39, -104, 113, 35, 0, 0, 1, 1, 8, 10, 0, 0, -73, -45, 21,
-95, 76, -49, 1, 3, 3, 0, 1, 1, 4, 2, 2, 4, 5, -76, 102, 35, 99,
60, -32, 4, 7, 0, 66, 0, 0, 0, 66, 0, 0, 0, 8, 0, 32, -94, -95,
-94, 0, -112, 39, -3, 55, 71, 8, 0, 69, 0, 0, 52, 50, 30, 64, 0,
64, 6, -93, 89, -84, 16, 6, 100, -84, 16, 6, -56, 11, 54, 0, 80,
-63, 127, 31, -14, 3, -67, 44, -15, -128, 16, 62, -68, -102, -54,
0, 0, 1, 1, 8, 10, 21, -95, 76, -49, 0, 0, -73, -45, 102, 35, 99,
60, -32, 4, 7, 0, 56, 1, 0, 0, 56, 1, 0, 0, 8, 0, 32, -94, -95,
-94, 0, -112, 39, -3, 55, 71, 8, 0, 69, 0, 1, 42, 50, 31, 64, 0,
64, 6, -94, 98, -84, 16, 6, 100, -84, 16, 6, -56, 11, 54, 0, 80,
-63, 127, 31, -14, 3, -67, 44, -15, -128, 24, 62, -68, -78, 62, 0,
0, 1, 1, 8, 10, 21, -95, 76, -49, 0, 0, -73, -45, 71, 69, 84, 32,
46, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
47, 47, 47, 10, 102, 35, 99, 60, -32, 4, 7, 0, 66, 0, 0, 0, 66, 0,
0, 0, 0, -112, 39, -3, 55, 71, 8, 0, 32, -94, -95, -94, 8, 0, 69,
0, 0, 52, -13, -17, 64, 0, -1, 6, 34, -121, -84, 16, 6, -56, -84,
16, 6, 100, 0, 80, 11, 54, 3, -67, 44, -15, -63, 127, 32, -24,
-128, 16, 38, -94, -79, -18, 0, 0, 1, 1, 8, 10, 0, 0, -73, -45, 21,
-95, 76, -49, 102, 35, 99, 60, -40, -108, 11, 0, 7, 3, 0, 0, 7, 3,
0, 0, 0, -112, 39, -3, 55, 71, 8, 0, 32, -94, -95, -94, 8, 0, 69,
0, 2, -7, -13, -16, 64, 0, -1, 6, 31, -63, -84, 16, 6, -56, -84,
16, 6, 100, 0, 80, 11, 54, 3, -67, 44, -15, -63, 127, 32, -24,
-128, 24, 39, -104, 94, -78, 0, 0, 1, 1, 8, 10, 0, 0, -73, -43, 21,
-95, 76, -49, 60, 104, 116, 109, 108, 62, 10, 60, 33, 45, 45, 116,
101, 115, 116, 32, 119, 101, 98, 32, 112, 97, 103, 101, 32, 102,
111, 114, 32, 82, 101, 100, 98, 97, 110, 107, 45, 62, 10, 60, 104,
101, 97, 100, 62, 10, 32, 32, 60, 116, 105, 116, 108, 101, 62, 82,
101, 100, 98, 97, 110, 107, 60, 47, 116, 105, 116, 108, 101, 62,
10, 32, 32, 60, 109, 101, 116, 97, 32, 110, 97, 109, 101, 61, 34,
100, 101, 115, 99, 114, 105, 112, 116, 105, 111, 110, 34, 32, 99,
111, 110, 116, 101, 110, 116, 61, 34, 34, 62, 10, 32, 32, 60, 109,
101, 116, 97, 32, 110, 97, 109, 101, 61, 34, 107, 101, 121, 119,
111, 114, 100, 115, 34, 32, 99, 111, 110, 116, 101, 110, 116, 61,
34, 34, 62, 10, 60, 47, 104, 101, 97, 100, 62, 10, 60, 98, 111,
100, 121, 32, 98, 103, 99, 111, 108, 111, 114, 61, 34, 35, 48, 48,
48, 48, 48, 48, 34, 32, 116, 101, 120, 116, 61, 34, 35, 70, 70, 70,
70, 70, 70, 34, 32, 108, 105, 110, 107, 61, 34, 35, 51, 51, 54, 54,
70, 70, 34, 32, 118, 108, 105, 110, 107, 61, 34, 35, 48, 48, 67,
67, 70, 70, 34, 62, 10, 60, 112, 32, 97, 108, 105, 103, 110, 61,
34, 99, 101, 110, 116, 101, 114, 34, 62, 60, 102, 111, 110, 116,
32, 115, 105, 122, 101, 61, 34, 54, 34, 32, 102, 97, 99, 101, 61,
34, 65, 114, 105, 97, 108, 34, 62, 60, 98, 62, 60, 105, 62, 71,
114, 101, 101, 116, 105, 110, 103, 115, 44, 32, 97, 110, 100, 32,
119, 101, 108, 99, 111, 109, 101, 32, 116, 111, 32, 99, 114, 97,
99, 107, 32, 116, 111, 119, 110, 46, 60, 47, 105, 62, 60, 47, 98,
62, 60, 47, 102, 111, 110, 116, 62, 60, 47, 112, 62, 10, 60, 104,
114, 32, 97, 108, 105, 103, 110, 61, 34, 99, 101, 110, 116, 101,
114, 34, 32, 119, 105, 100, 116, 104, 61, 34, 56, 48, 37, 34, 32,
115, 105, 122, 101, 61, 34, 55, 34, 62, 10, 60, 112, 62, 84, 104,
105, 115, 32, 105, 115, 32, 82, 101, 100, 98, 97, 110, 107, 32,
111, 114, 32, 115, 111, 109, 101, 116, 104, 105, 110, 103, 60, 47,
112, 62, 10, 60, 112, 62, 72, 101, 114, 101, 32, 97, 114, 101, 32,
115, 111, 109, 101, 32, 116, 101, 115, 116, 32, 108, 105, 110, 107,
115, 58, 60, 47, 112, 62, 10, 60, 117, 108, 62, 10, 32, 32, 32, 32,
60, 108, 105, 62, 60, 97, 32, 104, 114, 101, 102, 61, 34, 116, 101,
115, 116, 49, 46, 104, 116, 109, 108, 34, 62, 74, 97, 121, 32, 97,
110, 100, 32, 66, 111, 98, 60, 47, 97, 62, 60, 47, 108, 105, 62,
10, 32, 32, 32, 32, 60, 108, 105, 62, 60, 97, 32, 104, 114, 101,
102, 61, 34, 102, 105, 108, 101, 112, 97, 114, 101, 110, 116, 46,
104, 116, 109, 108, 34, 62, 66, 97, 116, 116, 108, 101, 115, 116,
97, 114, 60, 47, 97, 62, 60, 47, 108, 105, 62, 10, 32, 32, 32, 32,
60, 108, 105, 62, 60, 97, 32, 104, 114, 101, 102, 61, 34, 104, 116,
100, 111, 99, 115, 47, 109, 97, 110, 117, 97, 108, 47, 105, 110,
100, 101, 120, 46, 104, 116, 109, 108, 34, 62, 65, 112, 97, 99,
104, 101, 32, 68, 111, 99, 115, 60, 47, 97, 62, 60, 47, 108, 105,
62, 10, 60, 47, 117, 108, 62, 10, 10, 60, 105, 109, 103, 32, 115,
114, 99, 61, 34, 97, 112, 97, 99, 104, 101, 95, 112, 98, 46, 103,
105, 102, 34, 32, 119, 105, 100, 116, 104, 61, 34, 50, 53, 57, 34,
32, 104, 101, 105, 103, 104, 116, 61, 34, 51, 50, 34, 32, 97, 108,
116, 61, 34, 34, 32, 98, 111, 114, 100, 101, 114, 61, 34, 48, 34,
62, 10, 60, 47, 98, 111, 100, 121, 62, 10, 60, 47, 104, 116, 109,
108, 62, 10, 10, 102, 35, 99, 60, -40, -108, 11, 0, 66, 0, 0, 0,
66, 0, 0, 0, 8, 0, 32, -94, -95, -94, 0, -112, 39, -3, 55, 71, 8,
0, 69, 0, 0, 52, 50, 32, 64, 0, 64, 6, -93, 87, -84, 16, 6, 100,
-84, 16, 6, -56, 11, 54, 0, 80, -63, 127, 32, -24, 3, -67, 47, -74,
-128, 16, 59, -9, -103, -48, 0, 0, 1, 1, 8, 10, 21, -95, 76, -47,
0, 0, -73, -43, 102, 35, 99, 60, -40, -108, 11, 0, 66, 0, 0, 0, 66,
0, 0, 0, 0, -112, 39, -3, 55, 71, 8, 0, 32, -94, -95, -94, 8, 0,
69, 0, 0, 52, -13, -15, 64, 0, -1, 6, 34, -123, -84, 16, 6, -56,
-84, 16, 6, 100, 0, 80, 11, 54, 3, -67, 47, -74, -63, 127, 32, -24,
-128, 17, 39, -104, -82, 46, 0, 0, 1, 1, 8, 10, 0, 0, -73, -43, 21,
-95, 76, -47, 102, 35, 99, 60, 112, -49, 11, 0, 66, 0, 0, 0, 66, 0,
0, 0, 8, 0, 32, -94, -95, -94, 0, -112, 39, -3, 55, 71, 8, 0, 69,
0, 0, 52, 50, 33, 64, 0, 64, 6, -93, 86, -84, 16, 6, 100, -84, 16,
6, -56, 11, 54, 0, 80, -63, 127, 32, -24, 3, -67, 47, -73, -128,
16, 62, -68, -105, 10, 0, 0, 1, 1, 8, 10, 21, -95, 76, -47, 0, 0,
-73, -43, 102, 35, 99, 60, 112, -49, 11, 0, 66, 0, 0, 0, 66, 0, 0,
0, 8, 0, 32, -94, -95, -94, 0, -112, 39, -3, 55, 71, 8, 0, 69, 0,
0, 52, 50, 34, 64, 0, 64, 6, -93, 85, -84, 16, 6, 100, -84, 16, 6,
-56, 11, 54, 0, 80, -63, 127, 32, -24, 3, -67, 47, -73, -128, 17,
62, -68, -105, 9, 0, 0, 1, 1, 8, 10, 21, -95, 76, -47, 0, 0, -73,
-43, 102, 35, 99, 60, 112, -49, 11, 0, 66, 0, 0, 0, 66, 0, 0, 0, 0,
-112, 39, -3, 55, 71, 8, 0, 32, -94, -95, -94, 8, 0, 69, 0, 0, 52,
-13, -14, 64, 0, -1, 6, 34, -124, -84, 16, 6, -56, -84, 16, 6, 100,
0, 80, 11, 54, 3, -67, 47, -73, -63, 127, 32, -23, -128, 16, 39,
-104, -82, 45, 0, 0, 1, 1, 8, 10, 0, 0, -73, -43, 21, -95, 76, -47,
-83, -52, -58, 67, 15, -18, 2, 0, 72, 0, 0, 0, 72, 0, 0, 0, 0, 3,
-97, -57, -80, 11, 0, 3, 71, -85, -13, -126, 8, 0, 69, 0, 0, 58,
44, -127, 0, 0, -128, 17, 87, 1, -84, 16, 0, 20, 10, 2, 1, 11, 13,
-21, 0, 53, 0, 38, -48, 3, 46, 11, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 3,
119, 119, 119, 4, 116, 101, 115, 116, 3, 110, 101, 116, 0, 0, 1, 0,
1, -83, -52, -58, 67, 100, -65, 3, 0, -91, 0, 0, 0, -91, 0, 0, 0,
0, 3, 71, -85, -13, -126, 0, 3, -97, -57, -80, 11, 8, 0, 69, 0, 0,
-105, 57, -46, 64, 0, -2, 17, -117, 82, 10, 2, 1, 11, -84, 16, 0,
20, 0, 53, 13, -21, 0, -125, -19, -62, 46, 11, -127, -128, 0, 1, 0,
1, 0, 2, 0, 2, 3, 119, 119, 119, 4, 116, 101, 115, 116, 3, 110,
101, 116, 0, 0, 1, 0, 1, -64, 12, 0, 1, 0, 1, 0, 0, 0, 60, 0, 4,
-57, -65, 1, 6, -64, 16, 0, 2, 0, 1, 0, 0, 0, 60, 0, 15, 3, 110,
115, 49, 8, 109, 105, 100, 109, 97, 105, 110, 101, -64, 21, -64,
16, 0, 2, 0, 1, 0, 0, 0, 60, 0, 6, 3, 110, 115, 50, -64, 62, -64,
58, 0, 1, 0, 1, 0, 0, -53, -113, 0, 4, -40, -36, -26, 24, -64, 85,
0, 1, 0, 1, 0, 0, -53, -113, 0, 4, -40, -36, -26, 25, -83, -52,
-58, 67, -120, -56, 5, 0, 78, 0, 0, 0, 78, 0, 0, 0, 0, 3, -97, -57,
-80, 11, 0, 3, 71, -85, -13, -126, 8, 0, 69, 0, 0, 64, 44, -121, 0,
0, -128, 17, 86, -11, -84, 16, 0, 20, 10, 2, 1, 11, 13, -19, 0, 53,
0, 44, -98, 51, 37, 8, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 3, 119, 119,
119, 4, 117, 109, 99, 115, 5, 109, 97, 105, 110, 101, 3, 101, 100,
117, 0, 0, 1, 0, 1, -83, -52, -58, 67, -40, -31, 7, 0, -89, 0, 0,
0, -89, 0, 0, 0, 0, 3, 71, -85, -13, -126, 0, 3, -97, -57, -80, 11,
8, 0, 69, 0, 0, -103, 57, -45, 64, 0, -2, 17, -117, 79, 10, 2, 1,
11, -84, 16, 0, 20, 0, 53, 13, -19, 0, -123, -73, 92, 37, 8, -127,
-128, 0, 1, 0, 2, 0, 2, 0, 1, 3, 119, 119, 119, 4, 117, 109, 99,
115, 5, 109, 97, 105, 110, 101, 3, 101, 100, 117, 0, 0, 1, 0, 1,
-64, 12, 0, 5, 0, 1, 0, 1, 81, -128, 0, 10, 7, 71, 65, 78, 68, 65,
76, 70, -64, 16, -64, 48, 0, 1, 0, 1, 0, 1, 81, -128, 0, 4, -126,
111, 112, 21, -64, 16, 0, 2, 0, 1, 0, 0, 3, -24, 0, 9, 6, 103, 111,
108, 108, 117, 109, -64, 16, -64, 16, 0, 2, 0, 1, 0, 0, 3, -24, 0,
2, -64, 48, -64, 86, 0, 1, 0, 1, 0, 1, 81, -128, 0, 4, -126, 111,
112, 22, -104, 9, 31, 71, 39, -44, 3, 0, 42, 0, 0, 0, 42, 0, 0, 0,
0, 25, -86, -43, -59, 63, 0, 20, 108, -63, -90, 81, 8, 0, 69, 0, 0,
28, -100, 73, 0, 0, 64, 1, 15, 39, -84, 16, 67, -81, -84, 16, 51,
-95, 8, 8, 77, -53, -86, 44, 0, 0, -104, 9, 31, 71, 60, -33, 3, 0,
60, 0, 0, 0, 60, 0, 0, 0, 0, 20, 108, -63, -90, 81, 0, 25, -86,
-43, -59, 63, 8, 0, 69, 0, 0, 28, -74, -88, 0, 0, 127, 1, -75, -57,
-84, 16, 51, -95, -84, 16, 67, -81, 0, 0, 85, -45, -86, 44, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -73, -49, 51,
73, 119, 32, 1, 0, 42, 0, 0, 0, 42, 0, 0, 0, -1, -1, -1, -1, -1,
-1, 0, 1, 108, -98, 115, 123, 8, 6, 0, 1, 8, 0, 6, 4, 0, 1, 0, 1,
108, -98, 115, 123, -84, 22, 6, 28, 0, 0, 0, 0, 0, 0, -84, 22, 6,
-117, -73, -49, 51, 73, -120, 32, 1, 0, 42, 0, 0, 0, 42, 0, 0, 0,
-1, -1, -1, -1, -1, -1, 0, 1, 108, -98, 115, 123, 8, 6, 0, 1, 8, 0,
6, 4, 0, 1, 0, 1, 108, -98, 115, 123, -84, 22, 6, 28, 0, 0, 0, 0,
0, 0, -84, 22, 6, -117, -73, -49, 51, 73, -120, 34, 1, 0, 106, 0,
0, 0, 106, 0, 0, 0, 0, 1, 108, -98, 115, 123, 0, 12, 41, -14, -56,
-89, 8, 6, 0, 1, 8, 0, 6, 4, 0, 2, 0, 12, 41, -14, -56, -89, -84,
22, 6, -117, 0, 1, 108, -98, 115, 123, -84, 22, 6, 28, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -73, -49, 51, 73,
-105, 13, 9, 0, 60, 0, 0, 0, 60, 0, 0, 0, -1, -1, -1, -1, -1, -1,
0, 1, 108, -98, 115, -118, 8, 6, 0, 1, 8, 0, 6, 4, 0, 1, 0, 1, 108,
-98, 115, -118, -84, 22, 6, 76, 0, 0, 0, 0, 0, 0, -84, 22, 6, -44,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -69, -49, 51,
73, 13, -105, 12, 0, 106, 0, 0, 0, 106, 0, 0, 0, 0, 1, 108, -98,
115, 123, 0, 12, 41, -14, -56, -89, 8, 6, 0, 1, 8, 0, 6, 4, 0, 1,
0, 12, 41, -14, -56, -89, -84, 22, 6, -117, 0, 0, 0, 0, 0, 0, -84,
22, 6, 28, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, -69, -49, 51, 73, 25, -105, 12, 0, 42, 0, 0, 0, 42, 0, 0, 0, 0,
12, 41, -14, -56, -89, 0, 1, 108, -98, 115, 123, 8, 6, 0, 1, 8, 0,
6, 4, 0, 2, 0, 1, 108, -98, 115, 123, -84, 22, 6, 28, 0, 12, 41,
-14, -56, -89, -84, 22, 6, -117, -69, -49, 51, 73, 35, -105, 12, 0,
42, 0, 0, 0, 42, 0, 0, 0, 0, 12, 41, -14, -56, -89, 0, 1, 108, -98,
115, 123, 8, 6, 0, 1, 8, 0, 6, 4, 0, 2, 0, 1, 108, -98, 115, 123,
-84, 22, 6, 28, 0, 12, 41, -14, -56, -89, -84, 22, 6, -117, 31, 39,
118, 73, 81, -82, 10, 0, 82, 0, 0, 0, 82, 0, 0, 0, 0, 27, -44, 38,
49, 89, 0, 12, 41, -24, -67, -25, -122, -35, 96, 0, 0, 0, 0, 28, 6,
64, 35, 1, 0, 0, 0, 0, 0, 0, 0, 16, 0, 32, 0, 2, 0, 2, 35, 2, 0, 0,
0, 0, 0, 0, 0, 16, 0, 32, 0, 64, 0, 2, 4, 82, 0, 80, -69, 66, 1,
-111, 0, 0, 0, 0, 112, 2, -6, -16, -128, 16, 0, 0, 2, 4, 5, -76, 1,
1, 4, 2, 31, 39, 118, 73, 120, -45, 10, 0, 82, 0, 0, 0, 82, 0, 0,
0, 0, 12, 41, -24, -67, -25, 0, 27, -44, 38, 49, 89, -122, -35, 96,
0, 0, 0, 0, 28, 6, 64, 35, 2, 0, 0, 0, 0, 0, 0, 0, 16, 0, 32, 0,
64, 0, 2, 35, 1, 0, 0, 0, 0, 0, 0, 0, 16, 0, 32, 0, 2, 0, 2, 0, 80,
4, 82, -65, 110, -32, -73, -69, 66, 1, -110, 112, 18, -6, -16, -33,
-40, 0, 0, 2, 4, 5, -76, 1, 1, 4, 2, 31, 39, 118, 73, 86, -16, 10,
0, 80, 0, 0, 0, 80, 0, 0, 0, 0, 27, -44, 38, 49, 89, 0, 12, 41,
-24, -67, -25, -122, -35, 96, 0, 0, 0, 0, 20, 6, 64, 35, 1, 0, 0,
0, 0, 0, 0, 0, 16, 0, 32, 0, 2, 0, 2, 35, 2, 0, 0, 0, 0, 0, 0, 0,
16, 0, 32, 0, 64, 0, 2, 4, 82, 0, 80, -69, 66, 1, -110, -65, 110,
-32, -72, 80, 16, -6, -16, 12, -99, 0, 0, 0, 0, 0, 59, -1, 83
])
def _createPcapFile(self):
file = open(self.tmpPcapFile, mode='wb')
self.pcapDump.tofile(file)
file.close()
def _deletePcapFile(self):
if os.path.exists(self.tmpPcapFile):
os.remove(self.tmpPcapFile)
@enabletest
def test03001create(self):
self.pcr = PcapReplay.PcapReplay()
self.assertEqual(self.pcr.flowlessTcpPkts, [],
'Create failed: flowlessTcpPkts not initialised')
self.assertNotEqual(self.pcr.pktList, None,
'Create failed: pktList not initialised')
for proto in self.pcr.pktList:
self.assertEqual(
self.pcr.pktList[proto], [],
'Create failed: pktList[%s] not initialised' % proto)
self.assertNotEqual(self.pcr.flows, None,
'Create failed: flows not initialised')
for proto in self.pcr.flows:
self.assertEqual(
self.pcr.flows[proto], {},
'Create failed: flows[%s] not initialised' % proto)
self.assertEqual(self.pcr.seqNum, 0,
'Create failed: seqNum not initialised')
@enabletest
def test03002parsePktList(self):
self.pcr = PcapReplay.PcapReplay()
self._createPcapFile()
pktList = []
try:
file = pcs.PcapConnector(self.tmpPcapFile)
except Exception, e:
self.fail('Parse Pkt List failed: %s' % str(e))
while True:
try:
pkt = file.read()
except:
break
ether = ethernet(pkt[0:len(pkt)])
pktList.append(ether)
self.pcr.parsePacketList(pktList)
self.assertEqual(self.pcr.seqNum, self.pcapDumpPktNum,
'Parse Pkt List failed: pktList incorrectly parsed')
self.assertEqual(len(self.pcr.pktList[ICMP]),
self.pcapDumpProtoPktNum[ICMP],
'Parse Pkt List failed: ICMP pkts not parsed')
self.assertEqual(len(self.pcr.pktList[TCP]),
self.pcapDumpProtoPktNum[TCP],
'Parse Pkt List failed: TCP pkts not parsed')
self.assertEqual(len(self.pcr.pktList[UDP]),
self.pcapDumpProtoPktNum[UDP],
'Parse Pkt List failed: UDP pkts not parsed')
self.assertEqual(len(self.pcr.pktList[GENERIC]),
self.pcapDumpProtoPktNum[GENERIC],
'Parse Pkt List failed: GENERIC pkts not parsed')
self._deletePcapFile()
class PcapReplay(PcapReplayObject):
"""
PcapReplay contains all information and operatives that are associated
with all TcpFlows contained within a give packet list.
Beyond storage of these flows, this class provides the mechanisms
associated with parsing a "raw" list of packets.
"""
##
# Constants
##
# Class Fields
##
# Methods
def __init__(self, diagLevel=logging.ERROR):
"""
PcapReplay's constructor.
@param diagLevel:
The desired level of logging
"""
PcapReplayObject.__init__(self, diagLevel)
self.flowlessTcpPkts = []
"""A list of all flowless TCP packets"""
self.pktList = {TCP: [], UDP: [], ICMP: [], GENERIC: []}
"""A map of all packets to protocol"""
self.flows = {TCP: {}, UDP: {}, ICMP: {}, GENERIC: {}}
"""A map of all flows to protocol"""
self.seqNum = 0
"""Capture file ordered sequence number"""
def parsePacketList(self, pktList):
"""
Parses a packet list and appends each packet to the appropriate
protocol packet list
@param pktList:
The list of packets to be parsed
"""
# We are only interested in TCP, UDP and ICMP traffic
for pkt in pktList:
if (type(pkt.data) == pcs.packets.ipv4.ipv4 or
type(pkt.data) == pcs.packets.ipv6.ipv6):
ip = pkt.data
if type(ip.data) == pcs.packets.tcp.tcp:
self.pktList[TCP].append((self.seqNum, pkt))
elif type(ip.data) == pcs.packets.udp.udp:
self.pktList[UDP].append((self.seqNum, pkt))
elif type(ip.data) == pcs.packets.icmpv4.icmpv4 or \
type(ip.data) == pcs.packets.icmpv6.icmpv6:
self.pktList[ICMP].append((self.seqNum, pkt))
else:
self.pktList[GENERIC].append((self.seqNum, pkt))
else:
self.pktList[GENERIC].append((self.seqNum, pkt))
# Increment sequence
self.seqNum += 1
def parsePcapFile(self, file):
"""
Parses the named pcap file and appends to the raw protocol packet
lists
@param file:
The name of the capture file to be parsed
"""
pktList = []
# Attempt to read the capture file
try:
file = pcs.PcapConnector(file)
except Exception, error:
raise PcapReplayError(PcapReplayError.ERR_PCAPR_FILE,
'processPcapFile() : Error parsing "%s" : %s' %
(file, error))
while True:
# This is a hacky way of completing a read in the
# absence of a true iterator
try:
pkt = file.read()
except:
break
ether = ethernet(pkt[0:len(pkt)])
pktList.append(ether)
self.parsePacketList(pktList)
def main():
from optparse import OptionParser
parser = OptionParser()
parser.add_option("-f",
"--file",
dest="file",
default=None,
help="tcpdump file to read from")
(options, args) = parser.parse_args()
file = pcs.PcapConnector(options.file)
srcmap = {}
packets = 0
ip_cnt = 0
non_ip_cnt = 0
tcp_cnt = 0
udp_cnt = 0
icmp_cnt = 0
arp_cnt = 0
done = False
while not done:
ip = None
try:
packet = file.read()
except:
done = True
packets += 1
ether = ethernet(packet[0:len(packet)])
if type(ether.data) == pcs.packets.ipv4.ipv4:
ip_cnt += 1
ip = ether.data
else:
non_ip_cnt += 1
if type(ether.data) == pcs.packets.arp.arp:
arp_cnt += 1
if ip != None:
if type(ip.data) == pcs.packets.icmpv4.icmpv4:
icmp_cnt += 1
if type(ip.data) == pcs.packets.udp.udp:
udp_cnt += 1
if type(ip.data) == pcs.packets.tcp.tcp:
tcp_cnt += 1
if ip.src in srcmap:
srcmap[ip.src] += 1
else:
srcmap[ip.src] = 1
print "%d packets in dumpfile" % packets
print "%d unique source IPs" % len(srcmap)
print "%d ARP packets" % arp_cnt
print "%d IPv4 packets" % ip_cnt
print "%d ICMPv4 packets" % icmp_cnt
print "%d UDP packets" % udp_cnt
print "%d TCP packets" % tcp_cnt
print "Top 10 source addresses were"
hit_list = sorted(srcmap.itervalues(), reverse=True)
for i in range(1, 10):
for addr in srcmap.items():
if addr[1] == hit_list[i]:
print "Address %s\t Count %s\t Percentage %f" % (
inet_ntop(AF_INET, struct.pack('!L', addr[0])), addr[1],
(float(addr[1]) / float(packets)) * float(100))
def main():
from optparse import OptionParser
parser = OptionParser()
parser.add_option("-d",
"--devname",
dest="devname",
default=None,
help="The name of the tap device to open.")
parser.add_option("-i",
"--ifname",
dest="ifname",
default=None,
help="The name of the interface to listen on.")
parser.add_option("-g",
"--group",
dest="group",
default=None,
help="The IPv4 group to use for UML-style multicasts.")
parser.add_option("-p",
"--port",
dest="port",
default=None,
help="The IPv4 port to use for UML-style multicasts.")
parser.add_option("-a",
"--ifaddr",
dest="ifaddr",
default=None,
help="The IP address to listen on.")
parser.add_option("-S",
"--ether_source",
dest="ether_source",
default=None,
help="The Ethernet address to listen on.")
(options, args) = parser.parse_args()
if options.devname is not None:
input = TapConnector(options.devname)
output = input
elif options.group is not None:
if options.port is None:
print "Non-optional argument missing."
return
# XXX Currently, UmlMcast4Connector has to use the same broken
# semantics as QEMU does, to see its traffic -- apps SHOULD be
# joining groups on specific interfaces.
# Note that we'll also end up seeing our own traffic.
#input = UmlMcast4Connector(options.group, options.port, options.ifaddr)
input = UmlMcast4Connector(options.group, options.port, "0.0.0.0")
output = input
elif options.ifname is not None:
input = PcapConnector(options.ifname)
output = PcapConnector(options.ifname)
input.setfilter("udp port 67 or udp port 68")
if options.ifaddr is None or \
options.ether_source is None:
print "Non-optional argument missing."
return
ifaddr = inet_atol(options.ifaddr)
ether_source = ether_atob(options.ether_source)
ip_id = int(random.random() * 32768)
# XXX Should really have an API for extracting our
# local ethernet address.
running = True
while running is True:
packet = input.readpkt()
chain = packet.chain()
# Must have: ether + ip + udp + dhcp.
# UDP checksum ignored. Assume pcap filter above did its job.
if len(chain.packets) < 4 or \
not isinstance(chain.packets[3], dhcpv4):
continue
i_ether = chain.packets[0]
i_ip = chain.packets[1]
i_udp = chain.packets[2]
i_dhcp = chain.packets[3]
# check dhcp htype is ethernet.
# check if dhcp.cid in map.
if i_dhcp.op != pcs.packets.dhcpv4.BOOTREQUEST or \
i_dhcp.htype != pcs.packets.dhcpv4.HTYPE_ETHER or \
i_dhcp.hlen != 6:
continue
#print i_dhcp
chaddr_s = ether_btoa(i_dhcp.chaddr[:i_dhcp.hlen])
if not chaddr_s in map:
print "%s not in map" % chaddr_s
continue
ciaddr = inet_atol(map[chaddr_s]) # from map
dhcp = dhcpv4()
dhcp.op = pcs.packets.dhcpv4.BOOTREPLY
dhcp.htype = pcs.packets.dhcpv4.HTYPE_ETHER
dhcp.hlen = 6
dhcp.hops = 0
dhcp.xid = i_dhcp.xid
dhcp.flags = 0
#dhcp.ciaddr = ciaddr
dhcp.siaddr = ifaddr
# XXX should only fill out if i_dhcp.ciaddr was 0.0.0.0
dhcp.yiaddr = ciaddr
dhcp.chaddr = i_dhcp.chaddr
#dhcp.sname = "myhost"
#dhcp.file = "/vmunix"
#dhcp.options.append(dhcpv4_options.cookie().field())
# server ID.
# XXX Weeiiird!
#sid = dhcpv4_options.dhcp_server_identifier()
#sid.value = ifaddr
#sid.value = inet_atol("0.0.0.0")
#dhcp.options.append(sid.field())
# Subnet mask.
#sm = dhcpv4_options.subnet_mask()
#sm.value = inet_atol("255.255.255.0")
#dhcp.options.append(sm.field())
# Default gateway.
#dg = dhcpv4_options.routers()
#dg.value = ifaddr
#dhcp.options.append(dg.field())
# Add end marker.
#end = dhcpv4_options.end()
#dhcp.options.append(end.field())
# Pad BOOTP payload to 32-bit width.
# XXX BOOTP is problematic because the field which contains
# the options needs to be clamped to 64 bytes in total. This
# means we need to know the encoded length of each option.
# For now, guess it... total length of an RFC-951 payload
# is always 300 bytes.
# this shuts up wireshark.
#padlen = 300 - (len(dhcp.bytes) % 4)
#padlen = 50 - (len(dhcp.bytes) % 4)
#padlen = 4
#pad = dhcpv4_options.pad(padlen)
#dhcp.options.append(pad.field())
# Encapsulate ethernet.
ether = ethernet()
ether.type = 0x0800
ether.src = ether_source
ether.dst = i_dhcp.chaddr[:i_dhcp.hlen]
# Encapsulate IPv4.
ip = ipv4()
ip.version = 4
ip.hlen = 5
ip.tos = 0
ip.id = ip_id
ip.flags = 0x00
ip.offset = 0
ip.ttl = 1
ip.protocol = IPPROTO_UDP
ip.src = ifaddr
ip.dst = ciaddr
ip_id += 1
# Encapsulate UDPv4.
udp = udpv4()
udp.sport = 67
udp.dport = 68
udp.length = len(dhcp.bytes)
udp.checksum = udp.cksum(ip, dhcp.bytes)
# Compute header checksums.
ip.length = len(ip.bytes) + len(udp.bytes) + len(dhcp.bytes)
ip.checksum = ip.cksum()
# Send the lot.
packet = Chain([ether, ip, udp, dhcp])
packet.encode()
out = output.write(packet.bytes, len(packet.bytes))
print out
def main():
from optparse import OptionParser
parser = OptionParser()
parser.add_option("-d", "--devname",
dest="devname", default=None,
help="The name of the tap device to open.")
parser.add_option("-i", "--ifname",
dest="ifname", default=None,
help="The name of the interface to listen on.")
parser.add_option("-g", "--group",
dest="group", default=None,
help="The IPv4 group to use for UML-style multicasts.")
parser.add_option("-p", "--port",
dest="port", default=None,
help="The IPv4 port to use for UML-style multicasts.")
parser.add_option("-a", "--ifaddr",
dest="ifaddr", default=None,
help="The IP address to listen on.")
parser.add_option("-S", "--ether_source",
dest="ether_source", default=None,
help="The Ethernet address to listen on.")
(options, args) = parser.parse_args()
if options.devname is not None:
input = TapConnector(options.devname)
output = input
elif options.group is not None:
if options.port is None:
print "Non-optional argument missing."
return
# XXX Currently, UmlMcast4Connector has to use the same broken
# semantics as QEMU does, to see its traffic -- apps SHOULD be
# joining groups on specific interfaces.
# Note that we'll also end up seeing our own traffic.
#input = UmlMcast4Connector(options.group, options.port, options.ifaddr)
input = UmlMcast4Connector(options.group, options.port, "0.0.0.0")
output = input
elif options.ifname is not None:
input = PcapConnector(options.ifname)
output = PcapConnector(options.ifname)
input.setfilter("udp port 67 or udp port 68")
if options.ifaddr is None or \
options.ether_source is None:
print "Non-optional argument missing."
return
ifaddr = inet_atol(options.ifaddr)
ether_source = ether_atob(options.ether_source)
ip_id = int(random.random() * 32768)
# XXX Should really have an API for extracting our
# local ethernet address.
running = True
while running is True:
packet = input.readpkt()
chain = packet.chain()
# Must have: ether + ip + udp + dhcp.
# UDP checksum ignored. Assume pcap filter above did its job.
if len(chain.packets) < 4 or \
not isinstance(chain.packets[3], dhcpv4):
continue
i_ether = chain.packets[0]
i_ip = chain.packets[1]
i_udp = chain.packets[2]
i_dhcp = chain.packets[3]
# check dhcp htype is ethernet.
# check if dhcp.cid in map.
if i_dhcp.op != pcs.packets.dhcpv4.BOOTREQUEST or \
i_dhcp.htype != pcs.packets.dhcpv4.HTYPE_ETHER or \
i_dhcp.hlen != 6:
continue
#print i_dhcp
chaddr_s = ether_btoa(i_dhcp.chaddr[:i_dhcp.hlen])
if not chaddr_s in map:
print "%s not in map" % chaddr_s
continue
ciaddr = inet_atol(map[chaddr_s]) # from map
dhcp = dhcpv4()
dhcp.op = pcs.packets.dhcpv4.BOOTREPLY
dhcp.htype = pcs.packets.dhcpv4.HTYPE_ETHER
dhcp.hlen = 6
dhcp.hops = 0
dhcp.xid = i_dhcp.xid
dhcp.flags = 0
#dhcp.ciaddr = ciaddr
dhcp.siaddr = ifaddr
# XXX should only fill out if i_dhcp.ciaddr was 0.0.0.0
dhcp.yiaddr = ciaddr
dhcp.chaddr = i_dhcp.chaddr
#dhcp.sname = "myhost"
#dhcp.file = "/vmunix"
#dhcp.options.append(dhcpv4_options.cookie().field())
# server ID.
# XXX Weeiiird!
#sid = dhcpv4_options.dhcp_server_identifier()
#sid.value = ifaddr
#sid.value = inet_atol("0.0.0.0")
#dhcp.options.append(sid.field())
# Subnet mask.
#sm = dhcpv4_options.subnet_mask()
#sm.value = inet_atol("255.255.255.0")
#dhcp.options.append(sm.field())
# Default gateway.
#dg = dhcpv4_options.routers()
#dg.value = ifaddr
#dhcp.options.append(dg.field())
# Add end marker.
#end = dhcpv4_options.end()
#dhcp.options.append(end.field())
# Pad BOOTP payload to 32-bit width.
# XXX BOOTP is problematic because the field which contains
# the options needs to be clamped to 64 bytes in total. This
# means we need to know the encoded length of each option.
# For now, guess it... total length of an RFC-951 payload
# is always 300 bytes.
# this shuts up wireshark.
#padlen = 300 - (len(dhcp.bytes) % 4)
#padlen = 50 - (len(dhcp.bytes) % 4)
#padlen = 4
#pad = dhcpv4_options.pad(padlen)
#dhcp.options.append(pad.field())
# Encapsulate ethernet.
ether = ethernet()
ether.type = 0x0800
ether.src = ether_source
ether.dst = i_dhcp.chaddr[:i_dhcp.hlen]
# Encapsulate IPv4.
ip = ipv4()
ip.version = 4
ip.hlen = 5
ip.tos = 0
ip.id = ip_id
ip.flags = 0x00
ip.offset = 0
ip.ttl = 1
ip.protocol = IPPROTO_UDP
ip.src = ifaddr
ip.dst = ciaddr
ip_id += 1
# Encapsulate UDPv4.
udp = udpv4()
udp.sport = 67
udp.dport = 68
udp.length = len(dhcp.bytes)
udp.checksum = udp.cksum(ip, dhcp.bytes)
# Compute header checksums.
ip.length = len(ip.bytes) + len(udp.bytes) + len(dhcp.bytes)
ip.checksum = ip.cksum()
# Send the lot.
packet = Chain([ether, ip, udp, dhcp])
packet.encode()
out = output.write(packet.bytes, len(packet.bytes))
print out
def main():
from optparse import OptionParser
parser = OptionParser()
parser.add_option("-I", "--ether_iface",
dest="ether_iface", default=None,
help="The name of the source interface.")
parser.add_option("-e", "--ether_source",
dest="ether_source", default=None,
help="The host Ethernet source address.")
parser.add_option("-s", "--ip_source",
dest="ip_source", default=None,
help="The IP source address.")
parser.add_option("-G", "--igmp_group",
dest="igmp_group", default=None,
help="The IPv4 group for a group-specific query. "
"If omitted, send a general query.")
parser.add_option("-S", "--seconds",
dest="seconds", default=1.0,
help="Number of seconds between packets.")
parser.add_option("-c", "--count",
dest="count", default=None,
help="Stop after sending count packets.")
(options, args) = parser.parse_args()
if options.ether_iface is None or \
options.ether_source is None or \
options.ip_source is None or \
options.count is None:
print "Non-optional argument missing."
return
maxresp = 3 * 10
if options.igmp_group is None:
# General query.
dst = INADDR_ALLHOSTS_GROUP
group = INADDR_ANY
else:
# Group-specific query.
dst = inet_atol(options.igmp_group)
group = dst
# Queries don't contain the Router Alert option as they are
# destined for end stations, not routers.
c = ethernet(src=ether_atob(options.ether_source), \
dst=ETHER_MAP_IP_MULTICAST(dst)) / \
ipv4(flags=IP_DF, ttl=1, \
src=inet_atol(options.ip_source), \
dst=dst) / \
igmp(type=IGMP_v2_HOST_MEMBERSHIP_REPORT, code=maxresp) / \
igmpv2(group=group)
c.fixup()
output = PcapConnector(options.ether_iface)
#
# Send count packets, delayed by seconds
#
count = int(options.count)
if count < 0:
count = sys.maxint
while count > 0:
out = output.write(c.bytes, len(c.bytes))
count -= 1
sleep(float(options.seconds))
def test_stringfield(self):
ether = ethernet()
self.assertRaises(pcs.FieldBoundsError, setattr, ether, 'src',
"\x00\x00\x00\x00\x00\x00\x00")
def main():
from optparse import OptionParser
parser = OptionParser()
parser.add_option("-c", "--count",
dest="count", default=1,
help="Stop after sending (and recieving) count ECHO_RESPONSE packets..")
parser.add_option("-D", "--dont_fragment",
dest="df", default=False,
help="Set the Don't Fragment bit.")
parser.add_option("-s", "--ip_source",
dest="ip_source", default=None,
help="The IP source address.")
parser.add_option("-d", "--ip_dest",
dest="ip_dest", default=None,
help="The IP destination address.")
parser.add_option("-I", "--ether_iface",
dest="ether_iface", default=None,
help="The name of the source interface.")
parser.add_option("-e", "--ether_source",
dest="ether_source", default=None,
help="The host Ethernet source address.")
parser.add_option("-g", "--ether_dest",
dest="ether_dest", default=None,
help="The gateway Ethernet destination address.")
(options, args) = parser.parse_args()
c = ethernet(src=ether_atob(options.ether_source), \
dst=ether_atob(options.ether_dest)) / \
ipv4(ttl=64, src=inet_atol(options.ip_source), \
dst=inet_atol(options.ip_dest)) / \
icmpv4(type=8) / icmpv4echo(id=12345) / payload(payload="foobar")
c.calc_lengths()
#
# Increment ICMP echo sequence number with each iteration.
#
output = PcapConnector(options.ether_iface)
ip = c.packets[1]
echo = c.packets[3]
count = int(options.count)
while (count > 0):
c.calc_checksums()
c.encode()
out = output.write(c.bytes, len(c.bytes))
# packet = input.read()
# print packet
sleep(1)
count -= 1
ip.id += 1
echo.sequence += 1
def main():
from optparse import OptionParser
parser = OptionParser()
parser.add_option("-c", "--count",
dest="count", default=1,
help="Stop after sending (and recieving) count ECHO_RESPONSE packets..")
parser.add_option("-D", "--dont_fragment",
dest="df", default=False,
help="Set the Don't Fragment bit.")
parser.add_option("-s", "--ip_source",
dest="ip_source", default=None,
help="The IP source address.")
parser.add_option("-d", "--ip_dest",
dest="ip_dest", default=None,
help="The IP destination address.")
parser.add_option("-I", "--ether_iface",
dest="ether_iface", default=None,
help="The name of the source interface.")
parser.add_option("-e", "--ether_source",
dest="ether_source", default=None,
help="The host Ethernet source address.")
parser.add_option("-g", "--ether_dest",
dest="ether_dest", default=None,
help="The gateway Ethernet destination address.")
parser.add_option("-r", "--rt_hop",
dest="hop", default="::",
help="The intermediate router address.")
(options, args) = parser.parse_args()
rtcount = 1
# plen is 8 + rtcount * 16 for rt hdr, 8 for ICMP, 6 for foobar
plen = 8 + rtcount * 16 + 8 + 6
c = ethernet(src=ether_atob(options.ether_source), \
dst=ether_atob(options.ether_dest)) / \
ipv6(hop=64, next_header = 43, length = plen, \
src=inet_pton(AF_INET6, options.ip_source), \
dst=inet_pton(AF_INET6, options.ip_dest)) / \
ipv6ext.rt_ext(next_header = 58, \
addr1 = inet_pton(AF_INET6, options.hop)) / \
icmpv6(type=ICMP6_ECHO_REQUEST, id=12345) / \
payload(payload="foobar")
c.calc_lengths()
#
# Increment ICMP echo sequence number with each iteration.
#
output = PcapConnector(options.ether_iface)
ip = c.packets[1]
icmpecho = c.packets[3]
count = int(options.count)
while (count > 0):
# c.calc_checksums()
# icmpecho.cksum = icmpv6.cksum(icmpecho, ip)
# icmpecho.calc_checksum()
c.encode()
out = output.write(c.bytes, len(c.bytes))
# packet = input.read()
# print packet
sleep(1)
count -= 1
icmpecho.sequence += 1
def main():
from optparse import OptionParser
parser = OptionParser()
parser.add_option("-I",
"--ether_iface",
dest="ether_iface",
default=None,
help="The name of the source interface.")
parser.add_option("-e",
"--ether_source",
dest="ether_source",
default=None,
help="The host Ethernet source address.")
parser.add_option("-G",
"--ether_dest",
dest="ether_dest",
default=None,
help="The gateway Ethernet destination address.")
parser.add_option("-s",
"--ip_source",
dest="ip_source",
default=None,
help="The IP source address.")
parser.add_option("-d",
"--ip_dest",
dest="ip_dest",
default=None,
help="The IP destination address.")
parser.add_option("-c",
"--count",
dest="count",
default=None,
help="Stop after receiving at least count responses.")
(options, args) = parser.parse_args()
if options.ether_iface is None or \
options.ether_source is None or \
options.ether_dest is None or \
options.ip_source is None or \
options.count is None:
print "Non-optional argument missing."
return
if options.ip_dest is None:
idst = INADDR_DVMRP_GROUP
else:
idst = inet_atol(options.ip_dest)
c = ethernet(src=ether_atob(options.ether_source), \
dst=ether_atob(options.ether_dest)) / \
ipv4(ttl=1, src=inet_atol(options.ip_source), dst=idst) / \
igmp(type=IGMP_DVMRP, code=DVMRP_ASK_NEIGHBORS2) / \
dvmrp(capabilities=DVMRP_CAP_DEFAULT, minor=0xFF, major=3)
#
# DVMRP "ask neighbors" does not contain the Router Alert option,
# because DVMRP traffic is usually tunneled, and we don't need to
# wake up every router on the path.
#
# The Ask_neighbors2 payload is: reserved, caps, minor, major:
# 0x00, 0E, 0xFF, 0x03 is how mrinfo fills this out (DVMRPv3 compliant).
#
# PIM itself knows nothing about these messages, however, a DVMRP router
# which handles these messages MAY tell you if it's peering with other
# PIM routers (I believe only Ciscos do this).
#
c.calc_lengths()
c.calc_checksums()
c.encode()
input = PcapConnector(options.ether_iface)
input.setfilter("igmp")
output = PcapConnector(options.ether_iface)
out = output.write(c.bytes, len(c.bytes))
#
# Wait for up to 'count' responses to the query to arrive and print them.
#
count = int(options.count)
while count > 0:
packet = input.readpkt()
chain = packet.chain()
if chain.packets[2].type == IGMP_DVMRP:
print chain.packets[2].println()
#print "%s is in %s" % \
# (inet_ntop(AF_INET, struct.pack('!L', chain.packets[1].src)), \
# inet_ntop(AF_INET, struct.pack('!L', chain.packets[2].group)))
count -= 1
def main():
from optparse import OptionParser
parser = OptionParser()
parser.add_option("-I", "--ether_iface",
dest="ether_iface", default=None,
help="The name of the source interface.")
parser.add_option("-e", "--ether_source",
dest="ether_source", default=None,
help="The host Ethernet source address.")
parser.add_option("-s", "--ip_source",
dest="ip_source", default=None,
help="The IP source address.")
parser.add_option("-G", "--igmp_group",
dest="igmp_group", default=None,
help="The IPv4 group for a group-specific query. "
"If omitted, send a general query.")
parser.add_option("-M", "--maxresp",
dest="igmp_maxresp", default=None,
help="The maximum time for end-stations to respond "
"(in seconds).")
parser.add_option("-l", "--host_list",
dest="hostlist", action="append",
help="List of hosts we expect responses from.")
parser.add_option("-n", "--number",
dest="number", default = 1, type=int,
help="Query a number of groups starting at "
"the one given by -G")
parser.add_option("-c", "--count",
dest="count", default=None,
help="Stop after receiving at least count responses.")
(options, args) = parser.parse_args()
if options.ether_iface is None or \
options.ether_source is None or \
options.ip_source is None or \
options.count is None:
print "Non-optional argument missing."
return
maxresp = 3 * 10
if options.igmp_maxresp is not None:
maxresp = int(options.igmp_maxresp) * 10 # in units of deciseconds
if options.igmp_group is None:
# General query.
dst = INADDR_ALLHOSTS_GROUP
group = INADDR_ANY
else:
# Group-specific query.
dst = inet_atol(options.igmp_group)
group = dst
# Set up our match table
global match
match = {}
for host in options.hostlist:
for addr in range(group, group + options.number):
match[(inet_atol(host), (addr))] = False
signal.signal(signal.SIGINFO, results)
while (options.number >= 0):
# Queries don't contain the Router Alert option as they are
# destined for end stations, not routers.
c = ethernet(src=ether_atob(options.ether_source), \
dst=ETHER_MAP_IP_MULTICAST(dst)) / \
ipv4(flags=IP_DF, ttl=1, \
src=inet_atol(options.ip_source), \
dst=dst + options.number) / \
igmp(type=IGMP_HOST_MEMBERSHIP_QUERY, code=maxresp) / \
igmpv2(group=(group + options.number))
c.fixup()
input = PcapConnector(options.ether_iface)
input.setfilter("igmp")
output = PcapConnector(options.ether_iface)
out = output.write(c.bytes, len(c.bytes))
options.number -= 1
#
# Wait for up to 'count' responses to the query to arrive and print them.
#
count = int(options.count)
while count > 0:
packet = input.readpkt()
chain = packet.chain()
if chain.packets[2].type == IGMP_v2_HOST_MEMBERSHIP_REPORT:
#print chain.packets[2].println()
# print "%s is in %s" % \
# (inet_ntop(AF_INET, struct.pack('!L', chain.packets[1].src)), \
# inet_ntop(AF_INET, struct.pack('!L', chain.packets[3].group)))
match[(chain.packets[1].src, chain.packets[3].group)] = True
count -= 1
results(0, 0)
