T5474: establish common file name pattern for XML conf mode commands

We will use _ as CLI level divider. The XML definition filename and also
the Python helper should match the CLI node.

Example:
set interfaces ethernet -> interfaces_ethernet.xml.in
set interfaces bond -> interfaces_bond.xml.in
set service dhcp-server -> service_dhcp-server-xml.in

(cherry picked from commit 4ef110fd2c501b718344c72d495ad7e16d2bd465)

1 files changed, 107 insertions, 0 deletions

diff --git a/src/conf_mode/interfaces_pseudo-ethernet.py b/src/conf_mode/interfaces_pseudo-ethernet.py
new file mode 100755
index 000000000..dce5c2358
--- /dev/null
+++ b/src/conf_mode/interfaces_pseudo-ethernet.py
@@ -0,0 +1,107 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2019-2022 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# 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, see <http://www.gnu.org/licenses/>.
+
+from sys import exit
+from netifaces import interfaces
+
+from vyos.config import Config
+from vyos.configdict import get_interface_dict
+from vyos.configdict import is_node_changed
+from vyos.configdict import is_source_interface
+from vyos.configdict import is_node_changed
+from vyos.configverify import verify_vrf
+from vyos.configverify import verify_address
+from vyos.configverify import verify_bridge_delete
+from vyos.configverify import verify_source_interface
+from vyos.configverify import verify_vlan_config
+from vyos.configverify import verify_mtu_parent
+from vyos.configverify import verify_mirror_redirect
+from vyos.configverify import verify_bond_bridge_member
+from vyos.ifconfig import MACVLANIf
+from vyos import ConfigError
+
+from vyos import airbag
+airbag.enable()
+
+def get_config(config=None):
+    """
+    Retrive CLI config as dictionary. Dictionary can never be empty, as at
+    least the interface name will be added or a deleted flag
+    """
+    if config:
+        conf = config
+    else:
+        conf = Config()
+    base = ['interfaces', 'pseudo-ethernet']
+    ifname, peth = get_interface_dict(conf, base)
+
+    mode = is_node_changed(conf, ['mode'])
+    if mode: peth.update({'shutdown_required' : {}})
+
+    if is_node_changed(conf, base + [ifname, 'mode']):
+        peth.update({'rebuild_required': {}})
+
+    if 'source_interface' in peth:
+        _, peth['parent'] = get_interface_dict(conf, ['interfaces', 'ethernet'],
+                                               peth['source_interface'])
+        # test if source-interface is maybe already used by another interface
+        tmp = is_source_interface(conf, peth['source_interface'], ['macsec'])
+        if tmp and tmp != ifname: peth.update({'is_source_interface' : tmp})
+
+    return peth
+
+def verify(peth):
+    if 'deleted' in peth:
+        verify_bridge_delete(peth)
+        return None
+
+    verify_source_interface(peth)
+    verify_vrf(peth)
+    verify_address(peth)
+    verify_mtu_parent(peth, peth['parent'])
+    verify_mirror_redirect(peth)
+    # use common function to verify VLAN configuration
+    verify_vlan_config(peth)
+
+    return None
+
+def generate(peth):
+    return None
+
+def apply(peth):
+    # Check if the MACVLAN interface already exists
+    if 'rebuild_required' in peth or 'deleted' in peth:
+        if peth['ifname'] in interfaces():
+            p = MACVLANIf(peth['ifname'])
+            # MACVLAN is always needs to be recreated,
+            # thus we can simply always delete it first.
+            p.remove()
+
+    if 'deleted' not in peth:
+        p = MACVLANIf(**peth)
+        p.update(peth)
+
+    return None
+
+if __name__ == '__main__':
+    try:
+        c = get_config()
+        verify(c)
+        generate(c)
+        apply(c)
+    except ConfigError as e:
+        print(e)
+        exit(1)