Example #1
0
def kill_dhclient(device_name, family=4):
    for pid in pgrep('dhclient'):
        try:
            with open('/proc/%s/cmdline' % pid) as cmdline:
                args = cmdline.read().strip('\0').split('\0')
        except IOError as ioe:
            if ioe.errno == errno.ENOENT:  # exited before we read cmdline
                continue
        if args[-1] != device_name:  # dhclient of another device
            continue
        tokens = iter(args)
        pid_file = '/var/run/dhclient.pid'  # Default client pid location
        running_family = 4
        for token in tokens:
            if token == '-pf':
                pid_file = next(tokens)
            elif token == '--no-pid':
                pid_file = None
            elif token == '-6':
                running_family = 6

        if running_family != family:
            continue
        logging.info('Stopping dhclient -%s before running our own on %s',
                     family, device_name)
        _kill_and_rm_pid(pid, pid_file)

    #  In order to be able to configure the device with dhclient again. It is
    #  necessary that dhclient does not find it configured with any IP address
    #  (except 0.0.0.0 which is fine, or IPv6 link-local address needed for
    #   DHCPv6).
    ipwrapper.addrFlush(device_name, family)
def _remove_ip_config(iface, ipv4, ipv6):
    net_dev = NetDevice(iface, iproute2, ipv4=ipv4, ipv6=ipv6)
    DynamicSourceRoute.addInterfaceTracking(net_dev)
    DhcpClient(iface).shutdown()
    iproute2._removeSourceRoute(net_dev, DynamicSourceRoute)
    if ipv4.address or ipv6.address:
        with suppress(ipwrapper.IPRoute2Error):  # device does not exist
            ipwrapper.addrFlush(iface)
def _remove_ip_config(ip_config):
    iface = ip_config.top_dev
    ipv4 = ip_config.ipv4
    ipv6 = ip_config.ipv6

    net_dev = NetDevice(iface, iproute2, ipv4=ipv4, ipv6=ipv6)
    DynamicSourceRoute.addInterfaceTracking(net_dev)
    DhcpClient(iface).shutdown()
    iproute2._removeSourceRoute(net_dev, DynamicSourceRoute)
    if ipv4.address or ipv6.address:
        with suppress(ipwrapper.IPRoute2Error):  # device does not exist
            ipwrapper.addrFlush(iface)
def _remove_network_ip_config(ip_config):
    """Remove IP configuration from Vdsm controlled OVS network"""
    iface = ip_config.top_dev
    ipv4 = ip_config.ipv4
    ipv6 = ip_config.ipv6

    net_dev = NetDevice(iface, iproute2, ipv4=ipv4, ipv6=ipv6)
    DynamicSourceRoute.addInterfaceTracking(net_dev)
    DhcpClient(iface).shutdown()
    iproute2._removeSourceRoute(net_dev, DynamicSourceRoute)
    if ipv4.address or ipv6.address:
        with suppress(ipwrapper.IPRoute2Error):  # device does not exist
            ipwrapper.addrFlush(iface)
Example #5
0
def kill_dhclient(device_name):
    for pid in pgrep('dhclient'):
        try:
            with open('/proc/%s/cmdline' % pid) as cmdline:
                args = cmdline.read().strip('\0').split('\0')
        except IOError as ioe:
            if ioe.errno == errno.ENOENT:  # exited before we read cmdline
                continue
        if args[-1] != device_name:  # dhclient of another device
            continue
        tokens = iter(args)
        pid_file = '/var/run/dhclient.pid'  # Default client pid location
        for token in tokens:
            if token == '-pf':
                pid_file = next(tokens)
            elif token == '--no-pid':
                pid_file = None

        _kill_and_rm_pid(pid, pid_file)

    #  In order to be able to configure the device with dhclient again. It is
    #  necessary that dhclient does not find it configured with any IP address
    #  (except 0.0.0.0 which is fine).
    ipwrapper.addrFlush(device_name)
Example #6
0
def kill_dhclient(device_name):
    for pid in pgrep('dhclient'):
        try:
            with open('/proc/%s/cmdline' % pid) as cmdline:
                args = cmdline.read().strip('\0').split('\0')
        except IOError as ioe:
            if ioe.errno == errno.ENOENT:  # exited before we read cmdline
                continue
        if args[-1] != device_name:  # dhclient of another device
            continue
        tokens = iter(args)
        pid_file = '/var/run/dhclient.pid'  # Default client pid location
        for token in tokens:
            if token == '-pf':
                pid_file = next(tokens)
            elif token == '--no-pid':
                pid_file = None

        _kill_and_rm_pid(pid, pid_file)

    #  In order to be able to configure the device with dhclient again. It is
    #  necessary that dhclient does not find it configured with any IP address
    #  (except 0.0.0.0 which is fine).
    ipwrapper.addrFlush(device_name)
Example #7
0
 def removeIpConfig(self, iface):
     ipwrapper.addrFlush(iface.name)
Example #8
0
 def removeIpConfig(self, iface):
     ipwrapper.addrFlush(iface.name)