jeltz/hostap
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

tests: FILS SK HLP request parsing

Browse source 
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen 2017-02-13 11:51:25 +02:00 committed by Jouni Malinen
parent ea30e82dde
commit 279ff5ab69
1 changed files with 182 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

186
tests/hwsim/test_fils.py
View file

@ -385,7 +385,8 @@ DHCPINFORM=8
def build_dhcp(req, dhcp_msg, chaddr, giaddr="0.0.0.0",
ip_src="0.0.0.0", ip_dst="255.255.255.255",
rapid_commit=True):
rapid_commit=True, override_op=None, magic_override=None,
opt_end=True, extra_op=None):
proto = '\x08\x00' # IPv4
_ip_src = socket.inet_pton(socket.AF_INET, ip_src)
_ip_dst = socket.inet_pton(socket.AF_INET, ip_dst)
@ -409,19 +410,28 @@ def build_dhcp(req, dhcp_msg, chaddr, giaddr="0.0.0.0",
op = BOOTREPLY
src_port = 67
dst_port = 68
if override_op is not None:
op = override_op
payload = struct.pack('>BBBBLHH', op, htype, hlen, hops, xid, secs, flags)
sname = 64*'\x00'
file = 128*'\x00'
payload += _ciaddr + _yiaddr + _siaddr + _giaddr + _chaddr + sname + file
# magic - DHCP
payload += '\x63\x82\x53\x63'
if magic_override is not None:
payload += magic_override
else:
payload += '\x63\x82\x53\x63'
# Option: DHCP Message Type
payload += struct.pack('BBB', OPT_DHCP_MESSAGE_TYPE, 1, dhcp_msg)
if dhcp_msg is not None:
payload += struct.pack('BBB', OPT_DHCP_MESSAGE_TYPE, 1, dhcp_msg)
if rapid_commit:
# Option: Rapid Commit
payload += struct.pack('BB', OPT_RAPID_COMMIT, 0)
if extra_op:
payload += extra_op
# End Option
payload += struct.pack('B', OPT_END)
if opt_end:
payload += struct.pack('B', OPT_END)
udp = struct.pack('>HHHH', src_port, dst_port,
8 + len(payload), 0) + payload
@ -689,3 +699,171 @@ def test_fils_sk_hlp_oom(dev, apdev):
dev[0].wait_disconnected()
dev[0].request("FILS_HLP_REQ_FLUSH")
def test_fils_sk_hlp_req_parsing(dev, apdev):
"""FILS SK HLP request parsing"""
check_fils_capa(dev[0])
check_erp_capa(dev[0])
start_erp_as(apdev[1])
bssid = apdev[0]['bssid']
params = fils_hlp_config(fils_hlp_wait_time=30)
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
dev[0].scan_for_bss(bssid, freq=2412)
dev[0].request("ERP_FLUSH")
if "OK" not in dev[0].request("FILS_HLP_REQ_FLUSH"):
raise Exception("Failed to flush pending FILS HLP requests")
tot_len = 20 + 1
start = struct.pack('>BBHHBBBB', 0x45, 0, tot_len, 0, 0, 0, 128, 17)
_ip_src = '\x00\x00\x00\x00'
_ip_dst = '\x00\x00\x00\x00'
ipv4 = start + '\x00\x00' + _ip_src + _ip_dst
csum = ip_checksum(ipv4)
ipv4_overflow = start + csum + _ip_src + _ip_dst
tot_len = 20
start = struct.pack('>BBHHBBBB', 0x45, 0, tot_len, 0, 0, 0, 128, 123)
ipv4 = start + '\x00\x00' + _ip_src + _ip_dst
csum = ip_checksum(ipv4)
ipv4_unknown_proto = start + csum + _ip_src + _ip_dst
tot_len = 20
start = struct.pack('>BBHHBBBB', 0x45, 0, tot_len, 0, 0, 0, 128, 17)
ipv4 = start + '\x00\x00' + _ip_src + _ip_dst
csum = ip_checksum(ipv4)
ipv4_missing_udp_hdr = start + csum + _ip_src + _ip_dst
src_port = 68
dst_port = 67
udp = struct.pack('>HHHH', src_port, dst_port, 8 + 1, 0)
tot_len = 20 + len(udp)
start = struct.pack('>BBHHBBBB', 0x45, 0, tot_len, 0, 0, 0, 128, 17)
ipv4 = start + '\x00\x00' + _ip_src + _ip_dst
csum = ip_checksum(ipv4)
udp_overflow = start + csum + _ip_src + _ip_dst + udp
udp = struct.pack('>HHHH', src_port, dst_port, 7, 0)
tot_len = 20 + len(udp)
start = struct.pack('>BBHHBBBB', 0x45, 0, tot_len, 0, 0, 0, 128, 17)
ipv4 = start + '\x00\x00' + _ip_src + _ip_dst
csum = ip_checksum(ipv4)
udp_underflow = start + csum + _ip_src + _ip_dst + udp
src_port = 123
dst_port = 456
udp = struct.pack('>HHHH', src_port, dst_port, 8, 0)
tot_len = 20 + len(udp)
start = struct.pack('>BBHHBBBB', 0x45, 0, tot_len, 0, 0, 0, 128, 17)
ipv4 = start + '\x00\x00' + _ip_src + _ip_dst
csum = ip_checksum(ipv4)
udp_unknown_port = start + csum + _ip_src + _ip_dst + udp
src_port = 68
dst_port = 67
udp = struct.pack('>HHHH', src_port, dst_port, 8, 0)
tot_len = 20 + len(udp)
start = struct.pack('>BBHHBBBB', 0x45, 0, tot_len, 0, 0, 0, 128, 17)
ipv4 = start + '\x00\x00' + _ip_src + _ip_dst
csum = ip_checksum(ipv4)
dhcp_missing_data = start + csum + _ip_src + _ip_dst + udp
dhcp_not_req = build_dhcp(req=True, dhcp_msg=DHCPDISCOVER,
chaddr=dev[0].own_addr(), override_op=BOOTREPLY)
dhcp_no_magic = build_dhcp(req=True, dhcp_msg=None,
chaddr=dev[0].own_addr(), magic_override='',
rapid_commit=False, opt_end=False)
dhcp_unknown_magic = build_dhcp(req=True, dhcp_msg=DHCPDISCOVER,
chaddr=dev[0].own_addr(),
magic_override='\x00\x00\x00\x00')
dhcp_opts = build_dhcp(req=True, dhcp_msg=DHCPNAK,
chaddr=dev[0].own_addr(),
extra_op='\x00\x11', opt_end=False)
dhcp_opts2 = build_dhcp(req=True, dhcp_msg=DHCPNAK,
chaddr=dev[0].own_addr(),
extra_op='\x11\x01', opt_end=False)
dhcp_valid = build_dhcp(req=True, dhcp_msg=DHCPDISCOVER,
chaddr=dev[0].own_addr())
tests = [ "ff",
"0800",
"0800" + 20*"00",
"0800" + binascii.hexlify(ipv4_overflow),
"0800" + binascii.hexlify(ipv4_unknown_proto),
"0800" + binascii.hexlify(ipv4_missing_udp_hdr),
"0800" + binascii.hexlify(udp_overflow),
"0800" + binascii.hexlify(udp_underflow),
"0800" + binascii.hexlify(udp_unknown_port),
"0800" + binascii.hexlify(dhcp_missing_data),
binascii.hexlify(dhcp_not_req),
binascii.hexlify(dhcp_no_magic),
binascii.hexlify(dhcp_unknown_magic) ]
for t in tests:
if "OK" not in dev[0].request("FILS_HLP_REQ_ADD ff:ff:ff:ff:ff:ff " + t):
raise Exception("FILS_HLP_REQ_ADD failed: " + t)
id = dev[0].connect("fils", key_mgmt="FILS-SHA256",
eap="PSK", identity="psk.user@example.com",
password_hex="0123456789abcdef0123456789abcdef",
erp="1", scan_freq="2412")
dev[0].request("DISCONNECT")
dev[0].wait_disconnected()
dev[0].dump_monitor()
dev[0].select_network(id, freq=2412)
dev[0].wait_connected()
dev[0].request("DISCONNECT")
dev[0].wait_disconnected()
dev[0].request("FILS_HLP_REQ_FLUSH")
tests = [ binascii.hexlify(dhcp_opts),
binascii.hexlify(dhcp_opts2) ]
for t in tests:
if "OK" not in dev[0].request("FILS_HLP_REQ_ADD ff:ff:ff:ff:ff:ff " + t):
raise Exception("FILS_HLP_REQ_ADD failed: " + t)
dev[0].dump_monitor()
dev[0].select_network(id, freq=2412)
dev[0].wait_connected()
dev[0].request("DISCONNECT")
dev[0].wait_disconnected()
dev[0].request("FILS_HLP_REQ_FLUSH")
if "OK" not in dev[0].request("FILS_HLP_REQ_ADD ff:ff:ff:ff:ff:ff " + binascii.hexlify(dhcp_valid)):
raise Exception("FILS_HLP_REQ_ADD failed")
hapd.set("own_ip_addr", "0.0.0.0")
dev[0].select_network(id, freq=2412)
dev[0].wait_connected()
dev[0].request("DISCONNECT")
dev[0].wait_disconnected()
hapd.set("dhcp_server", "0.0.0.0")
dev[0].select_network(id, freq=2412)
dev[0].wait_connected()
dev[0].request("DISCONNECT")
dev[0].wait_disconnected()
# FILS: Failed to bind DHCP socket: Address already in use
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
sock.settimeout(5)
sock.bind(("127.0.0.2", 67))
hapd.set("own_ip_addr", "127.0.0.2")
hapd.set("dhcp_server", "127.0.0.2")
dev[0].select_network(id, freq=2412)
dev[0].wait_connected()
dev[0].request("DISCONNECT")
dev[0].wait_disconnected()
# FILS: DHCP sendto failed: Invalid argument
hapd.set("own_ip_addr", "127.0.0.3")
hapd.set("dhcp_server", "127.0.0.2")
hapd.set("dhcp_relay_port", "0")
hapd.set("dhcp_server_port", "0")
dev[0].select_network(id, freq=2412)
dev[0].wait_connected()
dev[0].request("DISCONNECT")
dev[0].wait_disconnected()
dev[0].request("FILS_HLP_REQ_FLUSH")