CSIT-366 IPv4dp - baseline vhost-user

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

diff --git a/resources/libraries/python/VhostUser.py b/resources/libraries/python/VhostUser.py
index cf4ca0b..020df61 100644 (file)
--- a/resources/libraries/python/VhostUser.py
+++ b/resources/libraries/python/VhostUser.py
@@ -13,7 +13,7 @@
 
 """Vhost-user interfaces library."""
 
-from resources.libraries.python.VatExecutor import VatExecutor
+from resources.libraries.python.VatExecutor import VatExecutor, VatTerminal
 
 
 class VhostUser(object):
@@ -37,3 +37,41 @@ class VhostUser(object):
         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
+        :return: 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
+        :return: 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