vpp: T8324: Migrate loopback interface to 'interfaces vpp loopback'

4 files changed, 107 insertions, 74 deletions

diff --git a/python/vyos/ifconfig/vpp/__init__.py b/python/vyos/ifconfig/vpp/__init__.py
index a7cfe79a4..b0a477c28 100644
--- a/python/vyos/ifconfig/vpp/__init__.py
+++ b/python/vyos/ifconfig/vpp/__init__.py
@@ -18,11 +18,13 @@
 from .bond import VPPBondInterface
 from .interface import VPPInterface
 from .ipip import VPPIPIPInterface
+from .loopback import VPPLoopbackInterface
 from .vxlan import VPPVXLANInterface
 
 __all__ = [
     'VPPBondInterface',
     'VPPInterface',
     'VPPIPIPInterface',
+    'VPPLoopbackInterface',
     'VPPVXLANInterface',
 ]
diff --git a/python/vyos/ifconfig/vpp/loopback.py b/python/vyos/ifconfig/vpp/loopback.py
new file mode 100644
index 000000000..36a30cb58
--- /dev/null
+++ b/python/vyos/ifconfig/vpp/loopback.py
@@ -0,0 +1,105 @@
+# VyOS implementation of VPP Loopback interface
+#
+# Copyright (C) VyOS Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+from vyos.ifconfig import Interface
+from vyos.ifconfig.vpp.interface import VPPInterface
+
+
+class VPPLoopbackInterface(Interface, VPPInterface):
+    """Interface Loopback"""
+
+    def __init__(self, ifname, config):
+        self.ifname = ifname
+        self.instance = int(ifname.removeprefix('vpplo'))
+        self.vpp_ifname = f'loop{self.instance}'
+
+        # Initialize Interface (kernel) and VPP part
+        super().__init__(ifname)
+        VPPInterface.__init__(self, self.vpp_ifname)
+
+        self.index = self.vpp.get_sw_if_index(self.vpp_ifname)
+        self.state = 'up' if 'disable' not in config else 'down'
+
+    def _create(self):
+        pass
+
+    def add(self):
+        """Create Loopback interface
+        https://github.com/FDio/vpp/blob/stable/2306/src/vnet/interface.api
+        Example:
+            from vyos.ifconfig.vpp import VPPLoopbackInterface
+            a = VPPLoopbackInterface(ifname='vpplo1', config)
+            a.add()
+        """
+        self.vpp.api.create_loopback_instance(
+            is_specified=True, user_instance=self.instance
+        )
+        # Add LCP pair (kernel) interface
+        self.kernel_add()
+        # Set interface state
+        self.set_state(self.state)
+        self.set_admin_state(self.state)
+        self.index = self.vpp.get_sw_if_index(self.vpp_ifname)
+
+    def delete(self):
+        """Delete Loopback interface
+        Example:
+            from vyos.ifconfig.vpp import VPPLoopbackInterface
+            a = VPPLoopbackInterface(ifname='vpplo1', config)
+            a.delete()
+        """
+        return self.vpp.api.delete_loopback(sw_if_index=self.index)
+
+    def kernel_add(self):
+        """Add LCP pair
+        Example:
+            from vyos.ifconfig.vpp import VPPLoopbackInterface
+            a = VPPLoopbackInterface(ifname='vpplo1')
+            a.kernel_add()
+        """
+        self.vpp.lcp_pair_add(self.vpp_ifname, self.ifname)
+
+    def kernel_delete(self):
+        """Delete LCP pair
+        Example:
+            from vyos.ifconfig.vpp import VPPLoopbackInterface
+            a = VPPLoopbackInterface(ifname='vpplo1')
+            a.kernel_delete()
+        """
+        self.vpp.lcp_pair_del(self.vpp_ifname, self.ifname)
+
+    def remove(self):
+        if self.index:
+            # Delete lcp pair interface
+            if self.vpp.lcp_pair_find(vpp_name_hw=self.vpp_ifname):
+                self.kernel_delete()
+
+            # Delete loopback interface
+            self.delete()
+
+    def update(self, config):
+        # Add loopback interface
+        self.add()
+
+        # Set rx-mode
+        rx_mode = config.get('vpp_settings', {}).get('interface_rx_mode')
+        if rx_mode:
+            self.set_rx_mode(rx_mode)
+
+        # Apply all settings to the lcp pair (kernel) interface
+        super().update(config)
diff --git a/python/vyos/vpp/interface/__init__.py b/python/vyos/vpp/interface/__init__.py
index f970edb63..4ae96f486 100644
--- a/python/vyos/vpp/interface/__init__.py
+++ b/python/vyos/vpp/interface/__init__.py
@@ -20,7 +20,6 @@ from .ethernet import EthernetInterface
 from .geneve import GeneveInterface
 from .gre import GREInterface
 from .interface import Interface
-from .loopback import LoopbackInterface
 from .wireguard import WireguardInterface
 from .xconnect import XconnectInterface
 
@@ -30,7 +29,6 @@ __all__ = [
     'GeneveInterface',
     'GREInterface',
     'Interface',
-    'LoopbackInterface',
     'WireguardInterface',
     'XconnectInterface',
 ]
diff --git a/python/vyos/vpp/interface/loopback.py b/python/vyos/vpp/interface/loopback.py
deleted file mode 100644
index 357423780..000000000
--- a/python/vyos/vpp/interface/loopback.py
+++ /dev/null
@@ -1,72 +0,0 @@
-# VyOS implementation of VPP Loopback interface
-#
-# Copyright (C) VyOS Inc.
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License along
-# with this program; if not, write to the Free Software Foundation, Inc.,
-# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-from vyos.vpp.interface.interface import Interface
-
-
-class LoopbackInterface(Interface):
-    """Interface Loopback"""
-
-    def __init__(self, ifname, kernel_interface: str = '', state: str = 'up'):
-        super().__init__(ifname)
-        self.instance = int(ifname.removeprefix('lo'))
-        self.ifname = f'loop{self.instance}'
-        self.kernel_interface = kernel_interface
-        self.initial_state = state
-
-    def add(self):
-        """Create Loopback interface
-        https://github.com/FDio/vpp/blob/stable/2306/src/vnet/interface.api
-        Example:
-            from vyos.vpp.interface import LoopbackInterface
-            a = LoopbackInterface(ifname='lo1')
-            a.add()
-        """
-        self.vpp.api.create_loopback_instance(
-            is_specified=True, user_instance=self.instance
-        )
-        # Set interface state
-        self.set_state(self.initial_state)
-
-    def delete(self):
-        """Delete Loopback interface
-        Example:
-            from vyos.vpp.interface import LoopbackInterface
-            a = LoopbackInterface(ifname='lo1')
-            a.delete()
-        """
-        loopback_if_index = self.vpp.get_sw_if_index(f'loop{self.instance}')
-        return self.vpp.api.delete_loopback(sw_if_index=loopback_if_index)
-
-    def kernel_add(self):
-        """Add LCP pair
-        Example:
-            from vyos.vpp.interface import LoopbackInterface
-            a = LoopbackInterface(ifname='lo1')
-            a.kernel_add()
-        """
-        self.vpp.lcp_pair_add(self.ifname, self.kernel_interface)
-
-    def kernel_delete(self):
-        """Delete LCP pair
-        Example:
-            from vyos.vpp.interface import LoopbackInterface
-            a = LoopbackInterface(ifname='lo1')
-            a.kernel_delete()
-        """
-        self.vpp.lcp_pair_del(self.ifname, self.kernel_interface)