CSIT-843: Update actual topology in case of new/updated/deleted interface

[csit.git] / resources / libraries / python / VhostUser.py

diff --git a/resources/libraries/python/VhostUser.py b/resources/libraries/python/VhostUser.py
index cf4ca0b..2e0ed1e 100644 (file)
--- a/resources/libraries/python/VhostUser.py
+++ b/resources/libraries/python/VhostUser.py
@@ -13,7 +13,9 @@
 
 """Vhost-user interfaces library."""
 
-from resources.libraries.python.VatExecutor import VatExecutor
+from resources.libraries.python.VatExecutor import VatExecutor, VatTerminal
+from resources.libraries.python.topology import NodeType, Topology
+from resources.libraries.python.InterfaceUtil import InterfaceUtil
 
 
 class VhostUser(object):
@@ -27,13 +29,82 @@ class VhostUser(object):
         :param socket: Vhost-user interface socket path.
         :type node: dict
         :type socket: str
-        :return: SW interface index.
+        :returns: SW interface index.
         :rtype: int
+        :raises RuntimeError: If Vhost-user interface creation failed.
         """
-        out = VatExecutor.cmd_from_template(node, "create_vhost_user_if.vat",
+        out = VatExecutor.cmd_from_template(node, 'create_vhost_user_if.vat',
                                             sock=socket)
         if out[0].get('retval') == 0:
-            return out[0].get('sw_if_index')
+            sw_if_idx = int(out[0].get('sw_if_index'))
+            if_key = Topology.add_new_port(node, 'vhost')
+            Topology.update_interface_sw_if_index(node, if_key, sw_if_idx)
+            ifc_name = InterfaceUtil.vpp_get_interface_name(node, sw_if_idx)
+            Topology.update_interface_name(node, if_key, ifc_name)
+            ifc_mac = InterfaceUtil.vpp_get_interface_mac(node, sw_if_idx)
+            Topology.update_interface_mac_address(node, if_key, ifc_mac)
+            Topology.update_interface_vhost_socket(node, if_key, socket)
+            return sw_if_idx
         else:
             raise RuntimeError('Create Vhost-user interface failed on node '
                                '"{}"'.format(node['host']))
+
+    @staticmethod
+    def get_vhost_user_if_name_by_sock(node, socket):
+        """Get Vhost-user interface name by socket.
+
+        :param node: Node to get Vhost-user interface name on.
+        :param socket: Vhost-user interface socket path.
+        :type node: dict
+        :type socket: str
+        :returns: Interface name or None if not found.
+        :rtype: str
+        """
+        for interface in node['interfaces'].values():
+            if interface.get('socket') == socket:
+                return interface.get('name')
+        return None
+
+    @staticmethod
+    def get_vhost_user_mac_by_sw_index(node, sw_if_index):
+        """Get Vhost-user l2_address for the given interface from actual
+        interface dump.
+
+        :param node: VPP node to get interface data from.
+        :param sw_if_index: Idx of the specific interface.
+        :type node: dict
+        :type sw_if_index: str
+        :returns: l2_address of the given interface.
+        :rtype: str
+        """
+
+        with VatTerminal(node) as vat:
+            if_data = vat.vat_terminal_exec_cmd_from_template(
+                "interface_dump.vat")
+        for iface in if_data[0]:
+            if iface["sw_if_index"] == sw_if_index:
+                return ':'.join("%02x" % (b) for b in iface["l2_address"][:6])
+
+        return None
+
+    @staticmethod
+    def vpp_show_vhost(node):
+        """Get vhost-user data for the given node.
+
+        :param node: VPP node to get interface data from.
+        :type node: dict
+        :returns: nothing
+        """
+        vat = VatExecutor()
+        vat.execute_script("show_vhost.vat", node, json_out=False)
+
+    @staticmethod
+    def show_vpp_vhost_on_all_duts(nodes):
+        """Show Vhost User on all DUTs.
+
+        :param nodes: VPP nodes.
+        :type nodes: dict
+        """
+        for node in nodes.values():
+            if node['type'] == NodeType.DUT:
+                VhostUser.vpp_show_vhost(node)