x
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vmware-nsx
Code Issues Proposed changes

NSX|P: Fix ipv6 subnet gateway IP 

Since NSX 3.0 ipv6 subnet GW cannot have a zero suffix.
This fix performs the check & update for MP DHCP subnets,
in addition to the Policy DHCP subnets that already had this check.

(Cherry picked from commit Ie74e96eb36df16f5e98588d92067f94168f3f5a6)

Change-Id: Ia1a47d8196b5336bb5510dccffd4e8c3821c8fd7
This commit is contained in:
asarfaty 2020-04-22 06:04:59 +02:00
parent 90f2171f97
commit 504323b863
1 changed files with 14 additions and 0 deletions
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14
vmware_nsx/plugins/nsx_p/plugin.py
View File

@ -1214,8 +1214,22 @@ class NsxPolicyPlugin(nsx_plugin_common.NsxPluginV3Base):
LOG.error(msg)
raise n_exc.InvalidInput(error_message=msg)
def _init_ipv6_gateway(self, subnet):
# Override neutron decision to verify that also for ipv6 the first
# ip in the cidr is not used, as the NSX does not support xxxx::0 as a
# segment subnet gateway in versions supporting policy DHCP
if (self.nsxpolicy.feature_supported(
nsxlib_consts.FEATURE_NSX_POLICY_DHCP) and
subnet.get('gateway_ip') is const.ATTR_NOT_SPECIFIED and
subnet.get('ip_version') == const.IP_VERSION_6 and
subnet.get('cidr') and subnet['cidr'] != const.ATTR_NOT_SPECIFIED):
net = netaddr.IPNetwork(subnet['cidr'])
subnet['gateway_ip'] = str(net.network + 1)
@nsx_plugin_common.api_replay_mode_wrapper
def create_subnet(self, context, subnet):
self._init_ipv6_gateway(subnet['subnet'])
if not self.use_policy_dhcp:
# Subnet with MP DHCP
return self._create_subnet_with_mp_dhcp(context, subnet)