Fix: NAT44 deterministic moved to separate det44 plugin

- align CSIT code with VPP code changes for NAT44 deterministic
  (DET44) feature

- align test names according to snat44ed tests

- remove obsolete 3-node nat tests

- remove 2n1l-10ge2p1x710-ethip4udp-snat44det-h1048576-p63-s66060288 tests
  (not enough memory for such high number of sessions)

Change-Id: I9a22b99b4cfa56d18e9c7ef9c58296e202567d42
Signed-off-by: Jan Gelety <jgelety@cisco.com>

3 files changed, 184 insertions, 91 deletions

diff --git a/resources/libraries/python/NATUtil.py b/resources/libraries/python/NATUtil.py
index b43058b23f..4ce72d84b4 100644
--- a/resources/libraries/python/NATUtil.py
+++ b/resources/libraries/python/NATUtil.py
@@ -21,6 +21,7 @@ from robot.api import logger
 
 from resources.libraries.python.Constants import Constants
 from resources.libraries.python.InterfaceUtil import InterfaceUtil
+from resources.libraries.python.topology import Topology
 from resources.libraries.python.PapiExecutor import PapiSocketExecutor
 
 
@@ -55,7 +56,7 @@ class NATUtil:
         """Set inside and outside interfaces for NAT44.
 
         :param node: DUT node.
-        :param interface: Inside interface.
+        :param interface: NAT44 interface.
         :param flag: Interface NAT configuration flag name.
         :type node: dict
         :type interface: str
@@ -89,35 +90,6 @@ class NATUtil:
         NATUtil.set_nat44_interface(node, int_out, u"NAT_IS_OUTSIDE")
 
     @staticmethod
-    def set_nat44_deterministic(node, ip_in, subnet_in, ip_out, subnet_out):
-        """Set deterministic behaviour of NAT44.
-
-        :param node: DUT node.
-        :param ip_in: Inside IP.
-        :param subnet_in: Inside IP subnet.
-        :param ip_out: Outside IP.
-        :param subnet_out: Outside IP subnet.
-        :type node: dict
-        :type ip_in: str
-        :type subnet_in: str or int
-        :type ip_out: str
-        :type subnet_out: str or int
-        """
-        cmd = u"nat_det_add_del_map"
-        err_msg = f"Failed to set deterministic behaviour of NAT " \
-            f"on host {node[u'host']}"
-        args_in = dict(
-            is_add=True,
-            in_addr=IPv4Address(str(ip_in)).packed,
-            in_plen=int(subnet_in),
-            out_addr=IPv4Address(str(ip_out)).packed,
-            out_plen=int(subnet_out)
-        )
-
-        with PapiSocketExecutor(node) as papi_exec:
-            papi_exec.add(cmd, **args_in).get_reply(err_msg)
-
-    @staticmethod
     def set_nat44_address_range(
             node, start_ip, end_ip, vrf_id=Constants.BITWISE_NON_ZERO,
             flag=u"NAT_IS_NONE"):
@@ -186,14 +158,6 @@ class NATUtil:
         :param node: DUT node.
         :type node: dict
         """
-        cmd = u"nat_show_config"
-        err_msg = f"Failed to get NAT base data on host {node[u'host']}"
-
-        with PapiSocketExecutor(node) as papi_exec:
-            reply = papi_exec.add(cmd).get_reply(err_msg)
-
-        logger.debug(f"NAT Configuration:\n{pformat(reply)}")
-
         cmds = [
             u"nat_worker_dump",
             u"nat44_interface_addr_dump",
@@ -215,16 +179,104 @@ class NATUtil:
         :param node: DUT node.
         :type node: dict
         """
-        cmd = u"nat_show_config"
-        err_msg = f"Failed to get NAT user data on host {node[u'host']}"
+        cmds = [
+            u"nat44_user_dump",
+            u"nat44_user_session_dump",
+        ]
+        PapiSocketExecutor.dump_and_log(node, cmds)
+
+    # DET44 PAPI calls
+    # DET44 means deterministic mode of NAT
+    @staticmethod
+    def enable_det44_plugin(node, inside_vrf=0, outside_vrf=0):
+        """Enable DET44 plugin.
+
+        :param node: DUT node.
+        :param inside_vrf: Inside VRF ID.
+        :param outside_vrf: Outside VRF ID.
+        :type node: dict
+        :type inside_vrf: str or int
+        :type outside_vrf: str or int
+        """
+        cmd = u"det44_plugin_enable_disable"
+        err_msg = f"Failed to enable DET44 plugin on the host {node[u'host']}!"
+        args_in = dict(
+            enable=True,
+            inside_vrf=int(inside_vrf),
+            outside_vrf=int(outside_vrf)
+        )
 
         with PapiSocketExecutor(node) as papi_exec:
-            reply = papi_exec.add(cmd).get_reply(err_msg)
+            papi_exec.add(cmd, **args_in).get_reply(err_msg)
 
-        logger.debug(f"NAT Configuration:\n{pformat(reply)}")
+    @staticmethod
+    def set_det44_interface(node, if_key, is_inside):
+        """Enable DET44 feature on the interface.
+
+        :param node: DUT node.
+        :param if_key: Interface key from topology file of interface
+            to enable DET44 feature on.
+        :param is_inside: True if interface is inside, False if outside.
+        :type node: dict
+        :type if_key: str
+        :type is_inside: bool
+        """
+        cmd = u"det44_interface_add_del_feature"
+        err_msg = f"Failed to enable DET44 feature on the interface {if_key} " \
+            f"on the host {node[u'host']}!"
+        args_in = dict(
+            is_add=True,
+            is_inside=is_inside,
+            sw_if_index=Topology.get_interface_sw_index(node, if_key)
+        )
+
+        with PapiSocketExecutor(node) as papi_exec:
+            papi_exec.add(cmd, **args_in).get_reply(err_msg)
+
+    @staticmethod
+    def set_det44_mapping(node, ip_in, subnet_in, ip_out, subnet_out):
+        """Set DET44 mapping.
 
+        :param node: DUT node.
+        :param ip_in: Inside IP.
+        :param subnet_in: Inside IP subnet.
+        :param ip_out: Outside IP.
+        :param subnet_out: Outside IP subnet.
+        :type node: dict
+        :type ip_in: str
+        :type subnet_in: str or int
+        :type ip_out: str
+        :type subnet_out: str or int
+        """
+        cmd = u"det44_add_del_map"
+        err_msg = f"Failed to set DET44 mapping on the host {node[u'host']}!"
+        args_in = dict(
+            is_add=True,
+            in_addr=IPv4Address(str(ip_in)).packed,
+            in_plen=int(subnet_in),
+            out_addr=IPv4Address(str(ip_out)).packed,
+            out_plen=int(subnet_out)
+        )
+
+        with PapiSocketExecutor(node) as papi_exec:
+            papi_exec.add(cmd, **args_in).get_reply(err_msg)
+
+    @staticmethod
+    def show_det44(node):
+        """Show DET44 data.
+
+        Used data sources:
+
+            det44_interface_dump
+            det44_map_dump
+            det44_session_dump
+
+        :param node: DUT node.
+        :type node: dict
+        """
         cmds = [
-            u"nat44_user_dump",
-            u"nat44_user_session_dump",
+            u"det44_interface_dump",
+            u"det44_map_dump",
+            u"det44_session_dump",
         ]
         PapiSocketExecutor.dump_and_log(node, cmds)
diff --git a/resources/libraries/robot/ip/nat.robot b/resources/libraries/robot/ip/nat.robot
index 8a970cf556..25218af456 100644
--- a/resources/libraries/robot/ip/nat.robot
+++ b/resources/libraries/robot/ip/nat.robot
@@ -37,49 +37,6 @@
 | | ... | ${node['interfaces']['${int_out}']['name']}
 | | Set NAT44 Interfaces | ${node} | ${int_in_name} | ${int_out_name}
 
-| Configure deterministic mode for NAT44
-| | [Documentation] | Set deterministic behaviour of NAT44.
-| |
-| | ... | *Arguments:*
-| | ... | - node - DUT node to set deterministic mode for NAT44 on.
-| | ... | Type: dictionary
-| | ... | - ip_in - Inside IP. Type: string
-| | ... | - subnet_in - Inside IP subnet. Type: string
-| | ... | - ip_out - Outside IP. Type: string
-| | ... | - subnet_out - Outside IP subnet. Type: string
-| |
-| | ... | *Example:*
-| |
-| | ... | \| Configure deterministic mode for NAT44 \| ${nodes['DUT1']} \
-| | ... | \| 100.0.0.0 \| 12 \| 12.1.1.0 \| 24 \|
-| |
-| | [Arguments] | ${node} | ${ip_in} | ${subnet_in} | ${ip_out} | ${subnet_out}
-| |
-| | Set NAT44 deterministic | ${node} | ${ip_in} | ${subnet_in} | ${ip_out}
-| | ... | ${subnet_out}
-
-| Show NAT verbose
-| | [Documentation] | Get the NAT settings on the node.
-| |
-| | ... | *Arguments:*
-| | ... | - node - DUT node to show NAT. Type: dictionary
-| |
-| | ... | *Example:*
-| |
-| | ... | \| Show NAT verbose \| ${nodes['DUT1']} \|
-| |
-| | [Arguments] | ${node}
-| |
-| | Show NAT | ${node}
-
-| Initialize NAT44 deterministic mode in circular topology
-| | [Documentation] | Initialization of NAT44 deterministic mode on DUT1
-| |
-| | Configure inside and outside interfaces
-| | ... | ${dut1} | ${DUT1_${int}1}[0] | ${DUT1_${int}2}[0]
-| | Configure deterministic mode for NAT44
-| | ... | ${dut1} | ${in_net} | ${in_mask} | ${out_net} | ${out_mask}
-
 | Initialize NAT44 endpoint-dependent mode in circular topology
 | | [Documentation] | Initialization of NAT44 endpoint-dependent mode on DUT1
 | |
@@ -150,3 +107,86 @@
 | | ... | Vpp Route Add
 | | ... | ${dut2} | ${out_net} | ${out_mask} | gateway=${dut1_if2_ip4}
 | | ... | interface=${DUT2_${int}1}[0]
+
+# DET44 - NAT44 deterministic
+| Enable DET44 plugin on DUT
+| | [Documentation] | Enable DET44 plugin on DUT.
+| |
+| | ... | *Arguments:*
+| | ... | - node - DUT node to enablr DET44 on.
+| | ... | Type: dictionary
+| | ... | - inside_vrf - Inside VRF ID; default value: 0.
+| | ... | Type: string or integer
+| | ... | - outside_vrf - Outside VRF ID; default value: 0.
+| | ... | Type: string or integer
+| |
+| | ... | *Example:*
+| |
+| | ... | \| Enable DET44 plugin on all DUTs \|
+| |
+| | [Arguments] | ${node} | ${inside_vrf}=${0} | ${outside_vrf}=${0}
+| |
+| | Enable DET44 Plugin
+| | ... | ${node} | inside_vrf=${inside_vrf} | outside_vrf=${outside_vrf}
+
+| Configure DET44 interfaces
+| | [Documentation] | Configure inside and outside interfaces for DET44.
+| |
+| | ... | *Arguments:*
+| | ... | - node - DUT node to set DET44 interfaces on. Type: dictionary
+| | ... | - int_in - Inside interface key. Type: string
+| | ... | - int_out - Outside interface key. Type: string
+| |
+| | ... | *Example:*
+| |
+| | ... | \| Configure DET44 interfaces \| ${nodes['DUT1']} \| port5 \| port6 \|
+| |
+| | [Arguments] | ${node} | ${int_in} | ${int_out}
+| |
+| | Set DET44 Interface | ${dut1} | ${int_in} | is_inside=${True}
+| | Set DET44 Interface | ${dut1} | ${int_out} | is_inside=${False}
+
+| Configure deterministic mode for NAT44
+| | [Documentation] | Set deterministic behaviour of NAT44 (DET44).
+| |
+| | ... | *Arguments:*
+| | ... | - node - DUT node to set deterministic mode for NAT44 on.
+| | ... | Type: dictionary
+| | ... | - ip_in - Inside IP. Type: string
+| | ... | - subnet_in - Inside IP subnet. Type: string
+| | ... | - ip_out - Outside IP. Type: string
+| | ... | - subnet_out - Outside IP subnet. Type: string
+| |
+| | ... | *Example:*
+| |
+| | ... | \| Configure deterministic mode for NAT44 \| ${nodes['DUT1']} \
+| | ... | \| 100.0.0.0 \| 12 \| 12.1.1.0 \| 24 \|
+| |
+| | [Arguments] | ${node} | ${ip_in} | ${subnet_in} | ${ip_out} | ${subnet_out}
+| |
+| | Set DET44 Mapping
+| | ... | ${node} | ${ip_in} | ${subnet_in} | ${ip_out} | ${subnet_out}
+
+| Initialize NAT44 deterministic mode in circular topology
+| | [Documentation] | Initialization of NAT44 deterministic mode (DET44)
+| | ... | on DUT1.
+| |
+| | Enable DET44 plugin on DUT | ${dut1}
+| | Configure DET44 interfaces
+| | ... | ${dut1} | ${DUT1_${int}1}[0] | ${DUT1_${int}2}[0]
+| | Configure deterministic mode for NAT44
+| | ... | ${dut1} | ${in_net} | ${in_mask} | ${out_net} | ${out_mask}
+
+| Show DET44 verbose
+| | [Documentation] | Get DET44 settings on the node.
+| |
+| | ... | *Arguments:*
+| | ... | - node - DUT node to show NAT. Type: dictionary
+| |
+| | ... | *Example:*
+| |
+| | ... | \| Show DET44 verbose \| ${nodes['DUT1']} \|
+| |
+| | [Arguments] | ${node}
+| |
+| | Show DET44 | ${node}
diff --git a/resources/libraries/robot/shared/test_teardown.robot b/resources/libraries/robot/shared/test_teardown.robot
index 5d71db4edc..93c4574c83 100644
--- a/resources/libraries/robot/shared/test_teardown.robot
+++ b/resources/libraries/robot/shared/test_teardown.robot
@@ -101,13 +101,14 @@
 | | ... | Keyword Should Exist | vnf_manager.Kill All VMs
 | | Run Keyword If | '${vnf_status}' == 'PASS' | vnf_manager.Kill All VMs
 
-| Additional Test Tear Down Action For nat
+| Additional Test Tear Down Action For det44
 | | [Documentation]
-| | ... | Additional teardown for tests which uses NAT feature.
+| | ... | Additional teardown for tests which uses DET44 feature.
 | |
 | | FOR | ${dut} | IN | @{duts}
-| | | Run Keyword If Test Failed
-| | | ... | Show NAT verbose | ${nodes['${dut}']}
+#| | | Run Keyword If Test Failed
+#| | | ... | Show DET44 verbose | ${nodes['${dut}']}
+| | | Show DET44 verbose | ${nodes['${dut}']}
 | | END
 
 | Additional Test Tear Down Action For nat-ed