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addons: dhcp: executing dhclient4 and dhclient6 ops independently

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Ticket: CM-13817
Reviewed By: CCR-5408
Testing Done: steups explained in the bug

Signed-off-by: Julien Fortin <julien@cumulusnetworks.com>
This commit is contained in:
Julien Fortin
2016-12-02 00:39:35 +01:00
parent 09096420d8
commit de4104b092
2 changed files with 45 additions and 40 deletions
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84
addons/dhcp.py
View File

@@ -38,11 +38,8 @@ class dhcp(moduleBase):
def _up(self, ifaceobj):
# if dhclient is already running do not stop and start it
if self.dhclientcmd.is_running(ifaceobj.name) or \
self.dhclientcmd.is_running6(ifaceobj.name):
self.logger.info('dhclient already running on %s. Not restarting.' % \
ifaceobj.name)
return
dhclient4_running = self.dhclientcmd.is_running(ifaceobj.name)
dhclient6_running = self.dhclientcmd.is_running6(ifaceobj.name)
try:
dhclient_cmd_prefix = None
dhcp_wait = policymanager.policymanager_api.get_attr_default(
@@ -54,45 +51,52 @@ class dhcp(moduleBase):
dhclient_cmd_prefix = '%s %s' %(self.vrf_exec_cmd_prefix, vrf)
if 'inet' in ifaceobj.addr_family:
# First release any existing dhclient processes
try:
if not ifupdownflags.flags.PERFMODE:
self.dhclientcmd.stop(ifaceobj.name)
except:
pass
self.dhclientcmd.start(ifaceobj.name, wait=wait,
cmd_prefix=dhclient_cmd_prefix)
if 'inet6' in ifaceobj.addr_family:
accept_ra = ifaceobj.get_attr_value_first('accept_ra')
if accept_ra:
# XXX: Validate value
self.sysctl_set('net.ipv6.conf.%s' %ifaceobj.name +
'.accept_ra', accept_ra)
autoconf = ifaceobj.get_attr_value_first('autoconf')
if autoconf:
# XXX: Validate value
self.sysctl_set('net.ipv6.conf.%s' %ifaceobj.name +
'.autoconf', autoconf)
if dhclient4_running:
self.logger.info('dhclient4 already running on %s. '
'Not restarting.' % ifaceobj.name)
else:
# First release any existing dhclient processes
try:
self.dhclientcmd.stop6(ifaceobj.name)
if not ifupdownflags.flags.PERFMODE:
self.dhclientcmd.stop(ifaceobj.name)
except:
pass
#add delay before starting IPv6 dhclient to
#make sure the configured interface/link is up.
time.sleep(2)
timeout = 10
while timeout:
timeout -= 2
addr_output = utils.exec_command('ip -6 addr show %s'
% ifaceobj.name)
r = re.search('inet6 .* scope link', addr_output)
if r:
self.dhclientcmd.start6(ifaceobj.name,
wait=wait,
cmd_prefix=dhclient_cmd_prefix)
return
self.dhclientcmd.start(ifaceobj.name, wait=wait,
cmd_prefix=dhclient_cmd_prefix)
if 'inet6' in ifaceobj.addr_family:
if dhclient6_running:
self.logger.info('dhclient6 already running on %s. '
'Not restarting.' % ifaceobj.name)
else:
accept_ra = ifaceobj.get_attr_value_first('accept_ra')
if accept_ra:
# XXX: Validate value
self.sysctl_set('net.ipv6.conf.%s' %ifaceobj.name +
'.accept_ra', accept_ra)
autoconf = ifaceobj.get_attr_value_first('autoconf')
if autoconf:
# XXX: Validate value
self.sysctl_set('net.ipv6.conf.%s' %ifaceobj.name +
'.autoconf', autoconf)
try:
self.dhclientcmd.stop6(ifaceobj.name)
except:
pass
#add delay before starting IPv6 dhclient to
#make sure the configured interface/link is up.
time.sleep(2)
timeout = 10
while timeout:
timeout -= 2
addr_output = utils.exec_command('ip -6 addr show %s'
% ifaceobj.name)
r = re.search('inet6 .* scope link', addr_output)
if r:
self.dhclientcmd.start6(ifaceobj.name,
wait=wait,
cmd_prefix=dhclient_cmd_prefix)
return
time.sleep(2)
except Exception, e:
self.log_error(str(e), ifaceobj)

1
ifupdownaddons/dhclient.py
View File

@@ -99,5 +99,6 @@ class dhclient(utilsBase):
def release6(self, ifacename, cmd_prefix=None):
cmd = ['/sbin/dhclient', '-6', '-r', '-pf',
'/run/dhclient6.%s.pid' %ifacename,
'-lf', '/var/lib/dhcp/dhclient6.%s.leases' % ifacename,
'%s' %ifacename]
self._run_dhclient_cmd(cmd, cmd_prefix)