From cdb7456e3c84084acebd23c00b8cddb3e253fc12 Mon Sep 17 00:00:00 2001
From: Kevin Benton <blak111@gmail.com>
Date: Sun, 9 Feb 2014 11:39:39 -0800
Subject: [PATCH] BigSwitch: Fix tenant_id for shared net requests

The URI port requests are sent to on the backend
contains the tenant_id of the network. This corrects
a bug where, on port updates and deletes, the tenant_id
of the port rather than the network was being used,
which was incorrect when attached to a shared network.

Closes-Bug: #1278530
Change-Id: I09ffc767c669416555867e975d0b7057a5cfa0cb
---
 neutron/plugins/bigswitch/plugin.py           | 25 +++++++++++--------
 .../unit/bigswitch/test_restproxy_plugin.py   | 24 ++++++++++++++++++
 2 files changed, 39 insertions(+), 10 deletions(-)

diff --git a/neutron/plugins/bigswitch/plugin.py b/neutron/plugins/bigswitch/plugin.py
index af9d0feaa..5fcc11c61 100644
--- a/neutron/plugins/bigswitch/plugin.py
+++ b/neutron/plugins/bigswitch/plugin.py
@@ -311,6 +311,11 @@ class NeutronRestProxyV2Base(db_base_plugin_v2.NeutronDbPluginV2,
                 return v
         return False
 
+    def _get_port_net_tenantid(self, context, port):
+        net = super(NeutronRestProxyV2Base,
+                    self).get_network(context, port["network_id"])
+        return net['tenant_id']
+
 
 class NeutronRestProxyV2(NeutronRestProxyV2Base,
                          extradhcpopt_db.ExtraDhcpOptMixin,
@@ -504,8 +509,7 @@ class NeutronRestProxyV2(NeutronRestProxyV2Base,
             self._process_port_create_extra_dhcp_opts(context, new_port,
                                                       dhcp_opts)
             new_port = self._extend_port_dict_binding(context, new_port)
-            net = super(NeutronRestProxyV2,
-                        self).get_network(context, new_port["network_id"])
+            net_tenant_id = self._get_port_net_tenantid(context, new_port)
             if self.add_meta_server_route:
                 if new_port['device_owner'] == 'network:dhcp':
                     destination = METADATA_SERVER_IP + '/32'
@@ -513,7 +517,7 @@ class NeutronRestProxyV2(NeutronRestProxyV2Base,
 
             # create on network ctrl
             mapped_port = self._map_state_and_status(new_port)
-            self.servers.rest_create_port(net["tenant_id"],
+            self.servers.rest_create_port(net_tenant_id,
                                           new_port["network_id"],
                                           mapped_port)
         return new_port
@@ -588,9 +592,11 @@ class NeutronRestProxyV2(NeutronRestProxyV2Base,
                 ctrl_update_required = True
 
             if ctrl_update_required:
+                # tenant_id must come from network in case network is shared
+                net_tenant_id = self._get_port_net_tenantid(context, new_port)
                 new_port = self._extend_port_dict_binding(context, new_port)
                 mapped_port = self._map_state_and_status(new_port)
-                self.servers.rest_update_port(new_port["tenant_id"],
+                self.servers.rest_update_port(net_tenant_id,
                                               new_port["network_id"],
                                               mapped_port)
 
@@ -620,15 +626,14 @@ class NeutronRestProxyV2(NeutronRestProxyV2Base,
 
     def _delete_port(self, context, port_id):
         port = super(NeutronRestProxyV2, self).get_port(context, port_id)
-        tenant_id = port['tenant_id']
-        net_id = port['network_id']
-        if tenant_id == '':
-            net = super(NeutronRestProxyV2, self).get_network(context, net_id)
-            tenant_id = net['tenant_id']
+
+        # Tenant ID must come from network in case the network is shared
+        tenant_id = self._get_port_net_tenantid(context, port)
+
         # Delete from DB
         ret_val = super(NeutronRestProxyV2,
                         self)._delete_port(context, port_id)
-        self.servers.rest_delete_port(tenant_id, net_id, port_id)
+        self.servers.rest_delete_port(tenant_id, port['network_id'], port_id)
         return ret_val
 
     def create_subnet(self, context, subnet):
diff --git a/neutron/tests/unit/bigswitch/test_restproxy_plugin.py b/neutron/tests/unit/bigswitch/test_restproxy_plugin.py
index 4f55a2a76..831cccb0b 100644
--- a/neutron/tests/unit/bigswitch/test_restproxy_plugin.py
+++ b/neutron/tests/unit/bigswitch/test_restproxy_plugin.py
@@ -118,6 +118,30 @@ class TestBigSwitchProxyPortsV2(test_plugin.TestPortsV2,
                 port = self._get_ports(n['network']['id'])[0]
                 self.assertEqual('ACTIVE', port['status'])
 
+    def test_correct_shared_net_tenant_id(self):
+        # tenant_id in port requests should match network tenant_id instead
+        # of port tenant_id
+        def rest_port_op(self, ten_id, netid, port):
+            if ten_id != 'SHARED':
+                raise Exception('expecting tenant_id SHARED. got %s' % ten_id)
+        with self.network(tenant_id='SHARED', shared=True) as net:
+            with self.subnet(network=net) as sub:
+                pref = 'neutron.plugins.bigswitch.servermanager.ServerPool.%s'
+                tomock = [pref % 'rest_create_port',
+                          pref % 'rest_update_port',
+                          pref % 'rest_delete_port']
+                patches = [patch(f, create=True, new=rest_port_op)
+                           for f in tomock]
+                for restp in patches:
+                    restp.start()
+                with self.port(subnet=sub, tenant_id='port-owner') as port:
+                    data = {'port': {'binding:host_id': 'someotherhost',
+                            'device_id': 'override_dev'}}
+                    req = self.new_update_request('ports', data,
+                                                  port['port']['id'])
+                    res = req.get_response(self.api)
+                    self.assertEqual(res.status_int, 200)
+
 
 class TestBigSwitchProxyPortsV2IVS(test_plugin.TestPortsV2,
                                    BigSwitchProxyPluginV2TestCase,
-- 
2.45.2