1 files changed, 123 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..fe2d7b1be
--- /dev/null
+++ b/src/conf_mode/interfaces-pseudo-ethernet.py
@@ -0,0 +1,123 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2019-2020 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/>.
+
+import os
+
+from copy import deepcopy
+from sys import exit
+
+from vyos.config import Config
+from vyos.configdict import get_interface_dict
+from vyos.configdict import leaf_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.ifconfig import MACVLANIf
+from vyos.validate import is_member
+from vyos import ConfigError
+
+from vyos import airbag
+airbag.enable()
+
+def get_config():
+    """
+    Retrive CLI config as dictionary. Dictionary can never be empty, as at
+    least the interface name will be added or a deleted flag
+    """
+    conf = Config()
+    base = ['interfaces', 'pseudo-ethernet']
+    peth = get_interface_dict(conf, base)
+
+    mode = leaf_node_changed(conf, ['mode'])
+    if mode:
+        peth.update({'mode_old' : mode})
+
+    # Check if source-interface is member of a bridge device
+    if 'source_interface' in peth:
+        bridge = is_member(conf, peth['source_interface'], 'bridge')
+        if bridge:
+            peth.update({'source_interface_is_bridge_member' : bridge})
+
+        # Check if we are a member of a bond device
+        bond = is_member(conf, peth['source_interface'], 'bonding')
+        if bond:
+            peth.update({'source_interface_is_bond_member' : bond})
+
+    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)
+
+    if 'source_interface_is_bridge_member' in peth:
+        raise ConfigError(
+            'Source interface "{source_interface}" can not be used as it is already a '
+            'member of bridge "{source_interface_is_bridge_member}"!'.format(**peth))
+
+    if 'source_interface_is_bond_member' in peth:
+        raise ConfigError(
+            'Source interface "{source_interface}" can not be used as it is already a '
+            'member of bond "{source_interface_is_bond_member}"!'.format(**peth))
+
+    # use common function to verify VLAN configuration
+    verify_vlan_config(peth)
+    return None
+
+def generate(peth):
+    return None
+
+def apply(peth):
+    if 'deleted' in peth:
+        # delete interface
+        MACVLANIf(peth['ifname']).remove()
+        return None
+
+    # Check if MACVLAN interface already exists. Parameters like the underlaying
+    # source-interface device or mode can not be changed on the fly and the
+    # interface needs to be recreated from the bottom.
+    if 'mode_old' in peth:
+        MACVLANIf(peth['ifname']).remove()
+
+    # MACVLAN interface needs to be created on-block instead of passing a ton
+    # of arguments, I just use a dict that is managed by vyos.ifconfig
+    conf = deepcopy(MACVLANIf.get_config())
+
+    # Assign MACVLAN instance configuration parameters to config dict
+    conf['source_interface'] = peth['source_interface']
+    conf['mode'] = peth['mode']
+
+    # It is safe to "re-create" the interface always, there is a sanity check
+    # that the interface will only be create if its non existent
+    p = MACVLANIf(peth['ifname'], **conf)
+    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)