blob: 45ff5a25255e84b1aa70481bd28e94ddc9a61113 [file] [log] [blame]
# Copyright 2016 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import os
from autotest_lib.server.hosts import ssh_host
SCAPY = 'scapy-2.2.0.tar.gz'
SCAPY_INSTALL_COMMAND = 'sudo python install'
PROC_NET_SNMP6 = '/proc/net/snmp6'
MULTICAST_ADDR = '33:33:00:00:00:01'
IFACE = 'managed0'
class IPutils(object):
def __init__(self, host):
"""Initializes an IP utility interface.
@param host: Router host object.
""" = host
self.install_path ='mktemp -d').stdout.rstrip()
def install_scapy(self):
"""Installs scapy on the target device. Scapy and all related files and
scripts will be installed in a temp directory under /tmp.
scapy = os.path.join(self.install_path, SCAPY)
ap_sshhost = ssh_host.SSHHost(
current_dir = os.path.dirname(os.path.realpath(__file__))
send_ra_script = os.path.join(current_dir, RA_SCRIPT)
send_scapy = os.path.join(current_dir, SCAPY)
ap_sshhost.send_file(send_scapy, self.install_path)
ap_sshhost.send_file(send_ra_script, self.install_path)'tar -xvf %s -C %s' % (scapy, self.install_path))'cd %s; %s' % (self.install_path, SCAPY_INSTALL_COMMAND))
def cleanup_scapy(self):
"""Remove all scapy related files and scripts from device.
@param host: Router host object.
"""'rm -rf %s' % self.install_path)
def send_ra(self, mac=MULTICAST_ADDR, interval=1, count=None, iface=IFACE,
"""Invoke scapy and send RA to the device.
@param host: Router host object.
@param mac: string HWAddr/MAC address to send the packets to.
@param interval: int Time to sleep between consecutive packets.
@param count: int Number of packets to be sent.
@param iface: string of the WiFi interface to use for sending packets.
@param lifetime: int original RA's router lifetime in seconds.
scapy_command = os.path.join(self.install_path, RA_SCRIPT)
options = ' -m %s -i %d -c %d -l %d -in %s' %(mac, interval, count,
lifetime, iface) + options)
def get_icmp6intype134(self, host):
"""Read the value of Icmp6InType134 and return integer.
@param host: DUT host object.
@returns integer value >0 if grep is successful; 0 otherwise.
ra_count_str =
'grep Icmp6InType134 %s || true' % PROC_NET_SNMP6).stdout
if ra_count_str:
return int(ra_count_str.split()[1])
# If grep failed it means that there is no entry for Icmp6InType134 in file.
return 0