mirror of
https://git.kernel.org/pub/scm/network/wireless/iwd.git
synced 2024-11-22 23:09:34 +01:00
55a077d399
If the network does not support group traffic we can now skip the broadcast test by specifying group=False in test_ifaces_connected.
145 lines
4.2 KiB
Python
145 lines
4.2 KiB
Python
#! /usr/bin/python3
|
|
# Rougly based on wpa_supplicant's mac80211_hwsim/tools/hwsim_test.c utility.
|
|
import socket
|
|
import fcntl
|
|
import struct
|
|
import select
|
|
|
|
import wiphy
|
|
import iwd
|
|
|
|
HWSIM_ETHERTYPE = 0x0800
|
|
HWSIM_PACKETLEN = 250
|
|
|
|
def raw_if_socket(intf):
|
|
sock = socket.socket(socket.PF_PACKET, socket.SOCK_RAW,
|
|
socket.htons(HWSIM_ETHERTYPE))
|
|
|
|
sock.bind((intf, HWSIM_ETHERTYPE))
|
|
|
|
return (sock, sock.getsockname()[4])
|
|
|
|
def checksum(buf):
|
|
pairs = zip(buf[0::2], buf[1::2])
|
|
s = sum([(h << 8) + l for h, l in pairs])
|
|
|
|
while s >> 16:
|
|
s = (s & 0xffff) + (s >> 16)
|
|
|
|
return s ^ 0xffff
|
|
|
|
def tx(fromsock, tosock, src, dst):
|
|
frame = b''.join([
|
|
dst, # eth.rmac
|
|
src, # eth.lmac
|
|
struct.pack('!H', HWSIM_ETHERTYPE), # eth.type
|
|
b'\x45', # ip.hdr_len
|
|
b'\x00', # ip.dsfield
|
|
struct.pack('!H', HWSIM_PACKETLEN - 14), # ip.len
|
|
b'\x01\x23', # ip.id
|
|
b'\x40\x00', # ip.flags, ip.frag_offset
|
|
b'\x40', # ip.ttl
|
|
b'\x01', # ip.proto
|
|
struct.pack('>H', 0), # ip.checksum
|
|
socket.inet_aton('192.168.1.1'), # ip.src
|
|
socket.inet_aton('192.168.1.2'), # ip.dst
|
|
bytes(range(0, HWSIM_PACKETLEN - 14 - 20))
|
|
])
|
|
frame = frame[:24] + struct.pack('>H', checksum(frame[14:34])) + frame[26:]
|
|
|
|
fromsock.send(frame)
|
|
|
|
return (frame, fromsock, tosock, src, dst)
|
|
|
|
def test_connected(if0=None, if1=None, group=True):
|
|
if if0 is None or if1 is None:
|
|
iwd_list = [dev.name for dev in iwd.IWD.get_instance().list_devices()]
|
|
non_iwd_list = [ifname for w in wiphy.wiphy_map.values()
|
|
for ifname in w.interface_map]
|
|
for intf in iwd_list + non_iwd_list:
|
|
if if0 is None:
|
|
if0 = intf
|
|
elif if1 is None and intf != if0:
|
|
if1 = intf
|
|
|
|
sock0, addr0 = raw_if_socket(if0)
|
|
sock1, addr1 = raw_if_socket(if1)
|
|
bcast = b'\xff\xff\xff\xff\xff\xff'
|
|
|
|
try:
|
|
frames = [
|
|
tx(sock0, sock1, addr0, addr1),
|
|
tx(sock1, sock0, addr1, addr0),
|
|
]
|
|
|
|
rec = [False, False]
|
|
|
|
if group:
|
|
frames.append(tx(sock0, sock1, addr0, bcast))
|
|
frames.append(tx(sock1, sock0, addr1, bcast))
|
|
rec.append(False)
|
|
rec.append(False)
|
|
|
|
while not all(rec):
|
|
r, w, x = select.select([sock0, sock1], [], [], 1.0)
|
|
if not r:
|
|
raise Exception('timeout waiting for packets: ' + repr(rec))
|
|
|
|
for s in r:
|
|
data, src = s.recvfrom(HWSIM_PACKETLEN + 1)
|
|
print('received ' + repr(data[:40]) + '... from ' + str(src))
|
|
if len(data) != HWSIM_PACKETLEN:
|
|
continue
|
|
|
|
idx = 0
|
|
for origdata, fromsock, tosock, origsrc, origdst in frames:
|
|
if s is tosock and src[4] == origsrc and data == origdata:
|
|
print('matches frame ' + str(idx))
|
|
break
|
|
idx += 1
|
|
else:
|
|
print('doesn\'t match any of our frames')
|
|
continue
|
|
|
|
if rec[idx]:
|
|
raise Exception('duplicate frame ' + str(idx))
|
|
|
|
rec[idx] = True
|
|
finally:
|
|
sock0.close()
|
|
sock1.close()
|
|
|
|
def test_ifaces_connected(if0=None, if1=None, group=True):
|
|
retry = 0
|
|
while True:
|
|
try:
|
|
test_connected(if0, if1, group)
|
|
break
|
|
|
|
except Exception as e:
|
|
if retry < 3:
|
|
print('retrying connection test: %i' % retry)
|
|
retry += 1
|
|
continue
|
|
raise e
|
|
|
|
SIOCGIFFLAGS = 0x8913
|
|
IFF_UP = 1 << 0
|
|
IFF_RUNNING = 1 << 6
|
|
|
|
def test_iface_operstate(intf=None):
|
|
if not intf:
|
|
intf = iwd.IWD.get_instance().list_devices()[0].name
|
|
|
|
sock = socket.socket(socket.PF_PACKET, socket.SOCK_RAW)
|
|
|
|
try:
|
|
ifreq = struct.pack('16sh', intf.encode('utf8'), 0)
|
|
flags = struct.unpack('16sh', fcntl.ioctl(sock, SIOCGIFFLAGS, ifreq))[1]
|
|
|
|
# IFF_LOWER_UP and IFF_DORMANT not returned by SIOCGIFFLAGS
|
|
if flags & (IFF_UP | IFF_RUNNING) != IFF_UP | IFF_RUNNING:
|
|
raise Exception(intf + ' operstate wrong')
|
|
finally:
|
|
sock.close()
|