def create_packet_ipcp_config(dst,
src,
sessionid,
code,
id=0x01,
ip=b'\x00\x00\x00\x00'):
"""
Create IPCP Configuration Request packet
:param dst: Destination MAC
:param src: Source MAC
:param sessionid: PPPoE session id
:param code: LCP code
:param id: Message id
:param ip: 0.0.0.0 ip address
:return: packet
"""
options = []
options.append(PPP_IPCP_Option(type=0x03, data=ip))
packet = Ether(dst=dst, src=src, type=0x8864) / \
PPPoE(version=1, type=1, sessionid=sessionid) / \
PPP(proto=0x8021) / \
PPP_IPCP(code=code, id=id, options=options)
return packet
def create_packet_lcp_config(dst,
src,
sessionid,
code,
magic,
id=0x01,
mru=1492):
"""
Create lcp packet
:param dst: Destination MAC
:param src: Source MAC
:param sessionid: PPPoE session id
:param code: LCP code
:param id: Message id
:param mru: MRU value
:param magic: Magic value
:return: packet
"""
options = []
options.append(
PPP_LCP_Option(type=0x01, data=mru.to_bytes(2, byteorder='big')))
options.append(
PPP_LCP_Option(type=0x05, data=magic.to_bytes(4, byteorder='big')))
packet = Ether(dst=dst, src=src, type=0x8864) / \
PPPoE(version=1, type=1, sessionid=sessionid) / \
PPP(proto=0xc021) / \
PPP_LCP(code=code, id=id, options=options)
return packet
def lcp_ack_packet(src, dst, sessionid, id, magic_number):
ether = Ether(src=src, dst=dst, type=0x8864)
pppoe = PPPoE(sessionid=sessionid)
ppp = PPP(proto=LCP)
ppp_mru = PPP_LCP_MRU_Option(max_recv_unit=1492)
ppp_magic = "\x05\x06" + magic_number
ppp_lcp = PPP_LCP(code=2, id=id, data=(Raw(ppp_mru) / ppp_magic))
return ether / pppoe / ppp / ppp_lcp
def lcp_req_packet(src, dst, sessionid, id, magic_number):
ether = Ether(src=src, dst=dst, type=0x8864)
pppoe = PPPoE(sessionid=sessionid)
ppp = PPP(proto=LCP)
ppp_mru = PPP_LCP_MRU_Option(max_recv_unit=1492)
ppp_auth = PPP_LCP_Auth_Protocol_Option(auth_protocol=PAP)
ppp_magic = PPP_LCP_Magic_Number_Option(magic_number=magic_number)
ppp_lcp = PPP_LCP(code=1,
id=id,
data=(Raw(ppp_mru) / Raw(ppp_auth) / Raw(ppp_magic)))
return ether / pppoe / ppp / ppp_lcp
def create_stream_pppoe_lcp(self, src_if, dst_if,
client_mac, session_id, count=1):
packets = []
for i in range(count):
# create packet info stored in the test case instance
info = self.create_packet_info(src_if, dst_if)
# convert the info into packet payload
payload = self.info_to_payload(info)
# create the packet itself
p = (Ether(dst=src_if.local_mac, src=client_mac) /
PPPoE(sessionid=session_id) /
PPP(proto=0xc021) /
Raw(payload))
# store a copy of the packet in the packet info
info.data = p.copy()
# append the packet to the list
packets.append(p)
# return the created packet list
return packets
def create_packet_lcp_config_pkt(dst, src, sessionid, source, code):
"""
Take source packet
Get last fields
Form new packet
Then copy last fields
:param dst: Destination MAC
:param src: Source MAC
:param sessionid: PPPoE session id
:param source: source packet
:param code: LCP code
:return: packet
"""
packet = Ether(dst=dst, src=src, type=0x8864) / \
PPPoE(version=1, type=1, sessionid=sessionid) / \
PPP(proto=0xc021) / \
source[PPP_LCP]
packet[PPP_LCP].code = code
return packet
def pkt_add_pppoe(pkt, type, code, session_id):
return Ether(src=pkt[Ether].src, dst=pkt[Ether].dst) / \
PPPoE(version=1, type=type, code=code, sessionid=session_id) / \
PPP(proto=0x0021) / pkt[Ether].payload
