snmp: T5855: migrate "set service lldp snmp enable" to "set service lldp snmp"

(cherry picked from commit a9201e77110ce0695e2ba879304aef41b7ac9a0c)

3 files changed, 51 insertions, 4 deletions

diff --git a/src/conf_mode/lldp.py b/src/conf_mode/lldp.py
index c2e87d171..3c647a0e8 100755
--- a/src/conf_mode/lldp.py
+++ b/src/conf_mode/lldp.py
@@ -86,9 +86,9 @@ def verify(lldp):
                     raise ConfigError(f'Must define both longitude and latitude for "{interface}" location!')
 
     # check options
-    if 'snmp' in lldp and 'enable' in lldp['snmp']:
+    if 'snmp' in lldp:
         if 'system_snmp_enabled' not in lldp:
-            raise ConfigError('SNMP must be configured to enable LLDP SNMP')
+            raise ConfigError('SNMP must be configured to enable LLDP SNMP!')
 
 
 def generate(lldp):
@@ -121,4 +121,3 @@ if __name__ == '__main__':
     except ConfigError as e:
         print(e)
         exit(1)
-
diff --git a/src/conf_mode/snmp.py b/src/conf_mode/snmp.py
index 38b5d52f9..f65d0d6bc 100755
--- a/src/conf_mode/snmp.py
+++ b/src/conf_mode/snmp.py
@@ -54,7 +54,7 @@ def get_config(config=None):
     if not conf.exists(base):
         snmp.update({'deleted' : ''})
 
-    if conf.exists(['service', 'lldp', 'snmp', 'enable']):
+    if conf.exists(['service', 'lldp', 'snmp']):
         snmp.update({'lldp_snmp' : ''})
 
     if 'deleted' in snmp:
diff --git a/src/migration-scripts/lldp/1-to-2 b/src/migration-scripts/lldp/1-to-2
new file mode 100755
index 000000000..35efb25db
--- /dev/null
+++ b/src/migration-scripts/lldp/1-to-2
@@ -0,0 +1,48 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2023 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/>.
+
+# T5855: migrate "set service lldp snmp enable" -> `set service lldp snmp"
+
+import sys
+
+from vyos.configtree import ConfigTree
+
+if len(sys.argv) < 2:
+    print("Must specify file name!")
+    sys.exit(1)
+
+file_name = sys.argv[1]
+
+with open(file_name, 'r') as f:
+    config_file = f.read()
+
+config = ConfigTree(config_file)
+base = ['service', 'lldp']
+if not config.exists(base):
+    # Nothing to do
+    sys.exit(0)
+
+if config.exists(base + ['snmp']):
+    enabled = config.exists(base + ['snmp', 'enable'])
+    config.delete(base + ['snmp'])
+    if enabled: config.set(base + ['snmp'])
+
+try:
+    with open(file_name, 'w') as f:
+        f.write(config.to_string())
+except OSError as e:
+    print("Failed to save the modified config: {}".format(e))
+    sys.exit(1)