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

tests: ProxyARP behavior with IPv6 frames

Browse source 
This adds transmission of number of NS/NA frames to test ProxyARP
behavior. The actual validation of the AP behavior is still manual,
i.e., a separate inspectation of the capture files is needed.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen 2014-12-15 22:54:21 +02:00 committed by Jouni Malinen
parent 19cbe06238
commit 5a3ce80265
1 changed files with 70 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

70
tests/hwsim/test_ap_hs20.py
View file

@ -2574,6 +2574,19 @@ def ip_checksum(buf):
sum = (sum & 0xffff) + (sum >> 16)
return struct.pack('H', ~sum & 0xffff)
def ipv6_solicited_node_mcaddr(target):
prefix = socket.inet_pton(socket.AF_INET6, "ff02::1:ff00:0")
mask = socket.inet_pton(socket.AF_INET6, "::ff:ffff")
_target = socket.inet_pton(socket.AF_INET6, target)
p = struct.unpack('4I', prefix)
m = struct.unpack('4I', mask)
t = struct.unpack('4I', _target)
res = (p[0] | (t[0] & m[0]),
p[1] | (t[1] & m[1]),
p[2] | (t[2] & m[2]),
p[3] | (t[3] & m[3]))
return socket.inet_ntop(socket.AF_INET6, struct.pack('4I', *res))
def build_icmpv6(ipv6_addrs, type, code, payload):
start = struct.pack("BB", type, code)
end = payload
@ -2610,6 +2623,8 @@ def build_ns(src_ll, ip_src, ip_dst, target, opt=None):
proto = '\x86\xdd'
ehdr = link_mc + _src_ll + proto
_ip_src = socket.inet_pton(socket.AF_INET6, ip_src)
if ip_dst is None:
ip_dst = ipv6_solicited_node_mcaddr(target)
_ip_dst = socket.inet_pton(socket.AF_INET6, ip_dst)
reserved = '\x00\x00\x00\x00'
@ -2625,6 +2640,25 @@ def build_ns(src_ll, ip_src, ip_dst, target, opt=None):
return ehdr + ipv6 + icmp
def send_ns(dev, src_ll=None, target=None, ip_src=None, ip_dst=None, opt=None,
hapd_bssid=None):
if hapd_bssid:
if src_ll is None:
src_ll = hapd_bssid
cmd = "DATA_TEST_FRAME ifname=ap-br0 "
else:
if src_ll is None:
src_ll = dev.p2p_interface_addr()
cmd = "DATA_TEST_FRAME "
if opt is None:
opt = "\x01\x01" + binascii.unhexlify(src_ll.replace(':',''))
pkt = build_ns(src_ll=src_ll, ip_src=ip_src, ip_dst=ip_dst, target=target,
opt=opt)
if "OK" not in dev.request(cmd + binascii.hexlify(pkt)):
raise Exception("DATA_TEST_FRAME failed")
def build_na(src_ll, ip_src, ip_dst, target, opt=None):
link_mc = binascii.unhexlify("3333ff000002")
_src_ll = binascii.unhexlify(src_ll.replace(':',''))
@ -2646,6 +2680,22 @@ def build_na(src_ll, ip_src, ip_dst, target, opt=None):
return ehdr + ipv6 + icmp
def send_na(dev, src_ll=None, target=None, ip_src=None, ip_dst=None, opt=None,
hapd_bssid=None):
if hapd_bssid:
if src_ll is None:
src_ll = hapd_bssid
cmd = "DATA_TEST_FRAME ifname=ap-br0 "
else:
if src_ll is None:
src_ll = dev.p2p_interface_addr()
cmd = "DATA_TEST_FRAME "
pkt = build_na(src_ll=src_ll, ip_src=ip_src, ip_dst=ip_dst, target=target,
opt=opt)
if "OK" not in dev.request(cmd + binascii.hexlify(pkt)):
raise Exception("DATA_TEST_FRAME failed")
def build_dhcp_ack(dst_ll, src_ll, ip_src, ip_dst, yiaddr, chaddr,
subnet_mask="255.255.255.0", truncated_opt=False,
wrong_magic=False, force_tot_len=None, no_dhcp=False):
@ -3007,6 +3057,26 @@ def _test_proxyarp_open(dev, apdev, params):
time.sleep(0.1)
send_ns(dev[0], target="aaaa:bbbb:dddd::2", ip_src="aaaa:bbbb:cccc::2")
time.sleep(0.1)
send_ns(dev[1], target="aaaa:bbbb:cccc::2", ip_src="aaaa:bbbb:dddd::2")
time.sleep(0.1)
send_ns(hapd, hapd_bssid=bssid, target="aaaa:bbbb:dddd::2",
ip_src="aaaa:bbbb:ffff::2")
time.sleep(0.1)
# Try to probe for an already assigned address
send_ns(dev[1], target="aaaa:bbbb:cccc::2", ip_src="::")
time.sleep(0.1)
send_ns(hapd, hapd_bssid=bssid, target="aaaa:bbbb:cccc::2", ip_src="::")
time.sleep(0.1)
# Unsolicited NA
send_na(dev[1], target="aaaa:bbbb:cccc:aeae::3",
ip_src="aaaa:bbbb:cccc:aeae::3", ip_dst="ff02::1")
send_na(hapd, hapd_bssid=bssid, target="aaaa:bbbb:cccc:aeae::4",
ip_src="aaaa:bbbb:cccc:aeae::4", ip_dst="ff02::1")
dev[0].request("DISCONNECT")
dev[1].request("DISCONNECT")
time.sleep(0.5)