def test_igmpv3_encode_kv(self):
# Create reports using the new syntax.
#c = igmp(type=IGMP_v3_HOST_MEMBERSHIP_REPORT) / \
c = igmp() / \
igmpv3.report(records=[GroupRecordField("", \
group=inet_atol("239.0.1.2"), \
type=IGMP_CHANGE_TO_INCLUDE),
GroupRecordField("", \
group=inet_atol("239.3.2.1"), \
type=IGMP_CHANGE_TO_INCLUDE, \
sources=[inet_atol("192.0.2.1")]), \
GroupRecordField("", \
group=inet_atol("224.111.222.111"), \
type=IGMP_CHANGE_TO_EXCLUDE), \
GroupRecordField("", \
group=inet_atol("225.4.3.2"), \
type=IGMP_BLOCK_OLD_SOURCES, \
sources=[inet_atol("192.0.2.99")])])
c.calc_lengths()
c.calc_checksums()
c.encode()
#hd = hexdumper()
#print hd.dump2(c.bytes)
expected = "\x22\x00\xC5\xA5\x00\x00\x00\x04" \
"\x03\x00\x00\x00\xEF\x00\x01\x02" \
"\x03\x00\x00\x01\xEF\x03\x02\x01" \
"\xC0\x00\x02\x01\x04\x00\x00\x00" \
"\xE0\x6F\xDE\x6F\x06\x00\x00\x01" \
"\xE1\x04\x03\x02\xC0\x00\x02\x63"
#print hd.dump2(expected)
gotttted = c.bytes
self.assertEqual(expected, gotttted, "test encoding")
def test_igmpv3_encode_kv(self):
# Create reports using the new syntax.
#c = igmp(type=IGMP_v3_HOST_MEMBERSHIP_REPORT) / \
c = igmp() / \
igmpv3.report(records=[GroupRecordField("", \
group=inet_atol("239.0.1.2"), \
type=IGMP_CHANGE_TO_INCLUDE),
GroupRecordField("", \
group=inet_atol("239.3.2.1"), \
type=IGMP_CHANGE_TO_INCLUDE, \
sources=[inet_atol("192.0.2.1")]), \
GroupRecordField("", \
group=inet_atol("224.111.222.111"), \
type=IGMP_CHANGE_TO_EXCLUDE), \
GroupRecordField("", \
group=inet_atol("225.4.3.2"), \
type=IGMP_BLOCK_OLD_SOURCES, \
sources=[inet_atol("192.0.2.99")])])
c.calc_lengths()
c.calc_checksums()
c.encode()
#hd = hexdumper()
#print hd.dump2(c.bytes)
expected = "\x22\x00\xC5\xA5\x00\x00\x00\x04" \
"\x03\x00\x00\x00\xEF\x00\x01\x02" \
"\x03\x00\x00\x01\xEF\x03\x02\x01" \
"\xC0\x00\x02\x01\x04\x00\x00\x00" \
"\xE0\x6F\xDE\x6F\x06\x00\x00\x01" \
"\xE1\x04\x03\x02\xC0\x00\x02\x63"
#print hd.dump2(expected)
gotttted = c.bytes
self.assertEqual(expected, gotttted, "test encoding")
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_igmpv3_encode(self):
# create one packet, copy its bytes, then compare their fields.
c = igmp(type=IGMP_v3_HOST_MEMBERSHIP_REPORT) / igmpv3.report()
rep = c.packets[1]
# An ASM/SSM leave.
rec0 = GroupRecordField("rec0")
rec0.type.value = IGMP_CHANGE_TO_INCLUDE
rec0.group.value = inet_atol("239.0.1.2")
rep.records.append(rec0)
# An SSM join.
rec1 = GroupRecordField("rec1")
rec1.type.value = IGMP_CHANGE_TO_INCLUDE
rec1.group.value = inet_atol("239.3.2.1")
rec1.sources.append(pcs.Field("", 32,
default = inet_atol("192.0.2.1")))
rec1.nsources.value = len(rec1.sources)
rep.records.append(rec1)
# An ASM join.
rec2 = GroupRecordField("rec2")
rec2.type.value = IGMP_CHANGE_TO_EXCLUDE
rec2.group.value = inet_atol("224.111.222.111")
rep.records.append(rec2)
# An ASM filter change.
# XXX I can't get auxiliary data embedding to work reliably,
# this seems to be because the syntactic sugar for OptionListField
# makes it difficult to retrieve the size of the embedded fields.
rec3 = GroupRecordField("rec3")
rec3.type.value = IGMP_BLOCK_OLD_SOURCES
rec3.group.value = inet_atol("225.4.3.2")
rec3.sources.append(pcs.Field("", 32,
default = inet_atol("192.0.2.99")))
rec3.nsources.value = len(rec3.sources)
rep.records.append(rec3)
rep.nrecords = len(rep.records)
c.calc_checksums()
c.encode()
#hd = hexdumper()
#print hd.dump2(c.bytes)
expected = "\x22\x00\xC5\xA5\x00\x00\x00\x04" \
"\x03\x00\x00\x00\xEF\x00\x01\x02" \
"\x03\x00\x00\x01\xEF\x03\x02\x01" \
"\xC0\x00\x02\x01\x04\x00\x00\x00" \
"\xE0\x6F\xDE\x6F\x06\x00\x00\x01" \
"\xE1\x04\x03\x02\xC0\x00\x02\x63"
#print hd.dump2(expected)
gotttted = c.bytes
self.assertEqual(expected, gotttted, "test encoding")
def test_igmpv3_decode(self):
# Try decoding the same packet as above, see what we get.
input = "\x22\x00\xC5\xA5\x00\x00\x00\x04" \
"\x03\x00\x00\x00\xEF\x00\x01\x02" \
"\x03\x00\x00\x01\xEF\x03\x02\x01" \
"\xC0\x00\x02\x01\x04\x00\x00\x00" \
"\xE0\x6F\xDE\x6F\x06\x00\x00\x01" \
"\xE1\x04\x03\x02\xC0\x00\x02\x63"
igh = igmp(input)
self.assertEqual(input, igh.chain().bytes, "test decoding")
def test_igmpv3_decode(self): # Try decoding the same packet as above, see what we get. input = "\x22\x00\xC5\xA5\x00\x00\x00\x04" \ "\x03\x00\x00\x00\xEF\x00\x01\x02" \ "\x03\x00\x00\x01\xEF\x03\x02\x01" \ "\xC0\x00\x02\x01\x04\x00\x00\x00" \ "\xE0\x6F\xDE\x6F\x06\x00\x00\x01" \ "\xE1\x04\x03\x02\xC0\x00\x02\x63" igh = igmp(input) self.assertEqual(input, igh.chain().bytes, "test decoding")
def test_igmpv3_encode(self):
# create one packet, copy its bytes, then compare their fields.
c = igmp(type=IGMP_v3_HOST_MEMBERSHIP_REPORT) / igmpv3.report()
rep = c.packets[1]
# An ASM/SSM leave.
rec0 = GroupRecordField("rec0")
rec0.type.value = IGMP_CHANGE_TO_INCLUDE
rec0.group.value = inet_atol("239.0.1.2")
rep.records.append(rec0)
# An SSM join.
rec1 = GroupRecordField("rec1")
rec1.type.value = IGMP_CHANGE_TO_INCLUDE
rec1.group.value = inet_atol("239.3.2.1")
rec1.sources.append(pcs.Field("", 32, default=inet_atol("192.0.2.1")))
rec1.nsources.value = len(rec1.sources)
rep.records.append(rec1)
# An ASM join.
rec2 = GroupRecordField("rec2")
rec2.type.value = IGMP_CHANGE_TO_EXCLUDE
rec2.group.value = inet_atol("224.111.222.111")
rep.records.append(rec2)
# An ASM filter change.
# XXX I can't get auxiliary data embedding to work reliably,
# this seems to be because the syntactic sugar for OptionListField
# makes it difficult to retrieve the size of the embedded fields.
rec3 = GroupRecordField("rec3")
rec3.type.value = IGMP_BLOCK_OLD_SOURCES
rec3.group.value = inet_atol("225.4.3.2")
rec3.sources.append(pcs.Field("", 32, default=inet_atol("192.0.2.99")))
rec3.nsources.value = len(rec3.sources)
rep.records.append(rec3)
rep.nrecords = len(rep.records)
c.calc_checksums()
c.encode()
#hd = hexdumper()
#print hd.dump2(c.bytes)
expected = "\x22\x00\xC5\xA5\x00\x00\x00\x04" \
"\x03\x00\x00\x00\xEF\x00\x01\x02" \
"\x03\x00\x00\x01\xEF\x03\x02\x01" \
"\xC0\x00\x02\x01\x04\x00\x00\x00" \
"\xE0\x6F\xDE\x6F\x06\x00\x00\x01" \
"\xE1\x04\x03\x02\xC0\x00\x02\x63"
#print hd.dump2(expected)
gotttted = c.bytes
self.assertEqual(expected, gotttted, "test encoding")
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 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 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("-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("-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("-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("-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
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)