qos: T4284: initial XML interface definitions for rewrite

1 files changed, 90 insertions, 0 deletions

diff --git a/src/conf_mode/qos.py b/src/conf_mode/qos.py
new file mode 100755
index 000000000..cf447d4b5
--- /dev/null
+++ b/src/conf_mode/qos.py
@@ -0,0 +1,90 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 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 vyos.config import Config
+from vyos.configdict import dict_merge
+from vyos.xml import defaults
+from vyos import ConfigError
+from vyos import airbag
+airbag.enable()
+
+def get_config(config=None):
+    if config:
+        conf = config
+    else:
+        conf = Config()
+    base = ['traffic-policy']
+    if not conf.exists(base):
+        return None
+
+    qos = conf.get_config_dict(base, key_mangling=('-', '_'), get_first_key=True)
+
+    for traffic_policy in ['drop-tail', 'fair-queue', 'fq-codel', 'limiter',
+                           'network-emulator', 'priority-queue', 'random-detect',
+                           'rate-control', 'round-robin', 'shaper', 'shaper-hfsc']:
+        traffic_policy_us = traffic_policy.replace('-','_')
+        # Individual policy type not present on CLI - no need to blend in
+        # any default values
+        if traffic_policy_us not in qos:
+            continue
+
+        default_values = defaults(base + [traffic_policy_us])
+
+        # class is another tag node which requires individual handling
+        class_default_values = defaults(base + [traffic_policy_us, 'class'])
+        if 'class' in default_values:
+            del default_values['class']
+
+        for policy, policy_config in qos[traffic_policy_us].items():
+            qos[traffic_policy_us][policy] = dict_merge(
+                default_values, qos[traffic_policy_us][policy])
+
+            if 'class' in policy_config:
+                for policy_class in policy_config['class']:
+                    qos[traffic_policy_us][policy]['class'][policy_class] = dict_merge(
+                        class_default_values, qos[traffic_policy_us][policy]['class'][policy_class])
+
+    import pprint
+    pprint.pprint(qos)
+    return qos
+
+def verify(qos):
+    if not qos:
+        return None
+
+    # network policy emulator
+    # reorder rerquires delay to be set
+
+    raise ConfigError('123')
+    return None
+
+def generate(qos):
+    return None
+
+def apply(qos):
+    return None
+
+if __name__ == '__main__':
+    try:
+        c = get_config()
+        verify(c)
+        generate(c)
+        apply(c)
+    except ConfigError as e:
+        print(e)
+        exit(1)