X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=resources%2Flibraries%2Fpython%2FL2Util.py;h=e44a6b360aa43dad89b9c61d43f2cf78bd2afa6e;hb=a74531b4483ae9122ba18e064cd20b8550039d21;hp=e0824598b4364ab4a429dad3362a090fc7f689d4;hpb=8c12ff59f1a5e750151f5eb0e806dcc80e91c3c2;p=csit.git

diff --git a/resources/libraries/python/L2Util.py b/resources/libraries/python/L2Util.py
index e0824598b4..e44a6b360a 100644
--- a/resources/libraries/python/L2Util.py
+++ b/resources/libraries/python/L2Util.py
@@ -21,7 +21,7 @@ from resources.libraries.python.ssh import exec_cmd_no_error
 
 
 class L2Util(object):
-    """Utilities for l2 configuration"""
+    """Utilities for l2 configuration."""
 
     @staticmethod
     def vpp_add_l2fib_entry(node, mac, interface, bd_id):
@@ -203,6 +203,7 @@ class L2Util(object):
         :type br_name: str
         :type if_1: str
         :type if_2: str
+
         """
         cmd = 'brctl addbr {0}'.format(br_name)
         exec_cmd_no_error(node, cmd, sudo=True)
@@ -211,13 +212,42 @@ class L2Util(object):
         cmd = 'brctl addif {0} {1}'.format(br_name, if_2)
         exec_cmd_no_error(node, cmd, sudo=True)
 
+    @staticmethod
+    def setup_network_namespace(node, namespace_name, interface_name,
+                                ip_address, prefix):
+        """Setup namespace on given node and attach interface and IP to
+        this namespace. Applicable also on TG node.
+
+        :param node: Node to set namespace on.
+        :param namespace_name: Namespace name.
+        :param interface_name: Interface name.
+        :param ip_address: IP address of namespace's interface.
+        :param prefix: IP address prefix length.
+        :type node: dict
+        :type namespace_name: str
+        :type vhost_if: str
+        :type ip_address: str
+        :type prefix: int
+
+        """
+        cmd = ('ip netns add {0}'.format(namespace_name))
+        exec_cmd_no_error(node, cmd, sudo=True)
+
+        cmd = ('ip link set dev {0} up netns {1}'.format(interface_name,
+                                                         namespace_name))
+        exec_cmd_no_error(node, cmd, sudo=True)
+
+        cmd = ('ip netns exec {0} ip addr add {1}/{2} dev {3}'.format(
+            namespace_name, ip_address, prefix, interface_name))
+        exec_cmd_no_error(node, cmd, sudo=True)
+
     @staticmethod
     def linux_del_bridge(node, br_name):
         """Delete bridge from linux node.
 
         :param node: Node to delete bridge from.
         :param br_name: Bridge name.
-        .. note:: The network interface corresponding to the bridge must be
+        ..note:: The network interface corresponding to the bridge must be
         down before it can be deleted!
         """
         cmd = 'brctl delbr {0}'.format(br_name)
@@ -248,3 +278,32 @@ class L2Util(object):
                     return bridge_domain
 
         return data
+
+    @staticmethod
+    def l2_tag_rewrite(node, interface, tag_rewrite_method, tag1_id=None):
+        """Rewrite tags in frame.
+
+        :param node: Node to rewrite tags.
+        :param interface: Interface on which rewrite tags.
+        :param tag_rewrite_method: Method of tag rewrite.
+        :param tag1_id: Optional tag1 ID for VLAN.
+        :type node: dict
+        :type interface: str or int
+        :type tag_rewrite_method : str
+        :type tag1_id: int
+        """
+        if tag1_id is None:
+            tag1_id = ''
+        else:
+            tag1_id = 'tag1 {0}'.format(tag1_id)
+        if isinstance(interface, basestring):
+            sw_if_index = Topology.get_interface_sw_index(node, interface)
+        else:
+            sw_if_index = interface
+
+        with VatTerminal(node) as vat:
+            vat.vat_terminal_exec_cmd_from_template("l2_tag_rewrite.vat",
+                                                    sw_if_index=sw_if_index,
+                                                    tag_rewrite_method=
+                                                    tag_rewrite_method,
+                                                    tag1_optional=tag1_id)