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-rw-r--r--resources/libraries/python/InterfaceUtil.py35
1 files changed, 34 insertions, 1 deletions
diff --git a/resources/libraries/python/InterfaceUtil.py b/resources/libraries/python/InterfaceUtil.py
index 6790fb7221..94250fba28 100644
--- a/resources/libraries/python/InterfaceUtil.py
+++ b/resources/libraries/python/InterfaceUtil.py
@@ -572,7 +572,40 @@ class InterfaceUtil(object):
with VatTerminal(node) as vat:
vat.vat_terminal_exec_cmd('exec show interfaces')
- return '{}.{}'.format(interface, sub_id), sw_subif_index
+ name = '{}.{}'.format(interface, sub_id)
+ return name, sw_subif_index
+
+ @staticmethod
+ def create_gre_tunnel_interface(node, source_ip, destination_ip):
+ """Create GRE tunnel interface on node.
+
+ :param node: VPP node to add tunnel interface.
+ :param source_ip: Source of the GRE tunnel.
+ :param destination_ip: Destination of the GRE tunnel.
+ :type node: dict
+ :type source_ip: str
+ :type destination_ip: str
+ :return: Name and index of created GRE tunnel interface.
+ :rtype: tuple
+ :raises RuntimeError: If unable to create GRE tunnel interface.
+ """
+ output = VatExecutor.cmd_from_template(node, "create_gre.vat",
+ src=source_ip,
+ dst=destination_ip)
+ output = output[0]
+
+ if output["retval"] == 0:
+ sw_if_index = output["sw_if_index"]
+
+ vat_executor = VatExecutor()
+ vat_executor.execute_script_json_out("dump_interfaces.vat", node)
+ interface_dump_json = vat_executor.get_script_stdout()
+ name = VatJsonUtil.get_interface_name_from_json(
+ interface_dump_json, sw_if_index)
+ return name, sw_if_index
+ else:
+ raise RuntimeError('Unable to create GRE tunnel on node {}.'
+ .format(node))
@staticmethod
def vpp_create_loopback(node):