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-rwxr-xr-xsrc/migration-scripts/dhcp-server/4-to-5121
1 files changed, 121 insertions, 0 deletions
diff --git a/src/migration-scripts/dhcp-server/4-to-5 b/src/migration-scripts/dhcp-server/4-to-5
new file mode 100755
index 000000000..8b973d608
--- /dev/null
+++ b/src/migration-scripts/dhcp-server/4-to-5
@@ -0,0 +1,121 @@
+#!/usr/bin/env python3
+
+# Removes boolean operator from:
+# - "set service dhcp-server shared-network-name <xyz> subnet 172.31.0.0/24 ip-forwarding enable (true|false)"
+# - "set service dhcp-server shared-network-name <xyz> authoritative (true|false)"
+# - "set service dhcp-server disabled (true|false)"
+
+import sys
+
+from vyos.configtree import ConfigTree
+
+if (len(sys.argv) < 1):
+ 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)
+
+if not config.exists(['service', 'dhcp-server']):
+ # Nothing to do
+ sys.exit(0)
+else:
+ base = ['service', 'dhcp-server']
+ # Make node "set service dhcp-server dynamic-dns-update enable (true|false)" valueless
+ if config.exists(base + ['dynamic-dns-update']):
+ bool_val = config.return_value(base + ['dynamic-dns-update', 'enable'])
+
+ # Delete the node with the old syntax
+ config.delete(base + ['dynamic-dns-update'])
+ if str(bool_val) == 'true':
+ # Enable dynamic-dns-update with new syntax
+ config.set(base + ['dynamic-dns-update'], value=None)
+
+ # Make node "set service dhcp-server disabled (true|false)" valueless
+ if config.exists(base + ['disabled']):
+ bool_val = config.return_value(base + ['disabled'])
+
+ # Delete the node with the old syntax
+ config.delete(base + ['disabled'])
+ if str(bool_val) == 'true':
+ # Now disable DHCP server with the new syntax
+ config.set(base + ['disable'], value=None)
+
+ # Make node "set service dhcp-server hostfile-update (enable|disable) valueless
+ if config.exists(base + ['hostfile-update']):
+ bool_val = config.return_value(base + ['hostfile-update'])
+
+ # Delete the node with the old syntax incl. all subnodes
+ config.delete(base + ['hostfile-update'])
+ if str(bool_val) == 'enable':
+ # Enable hostfile update with new syntax
+ config.set(base + ['hostfile-update'], value=None)
+
+ # Run this for every instance if 'shared-network-name'
+ for network in config.list_nodes(base + ['shared-network-name']):
+ base_network = base + ['shared-network-name', network]
+ # format as tag node to avoid loading problems
+ config.set_tag(base + ['shared-network-name'])
+
+ # Run this for every specified 'subnet'
+ for subnet in config.list_nodes(base_network + ['subnet']):
+ base_subnet = base_network + ['subnet', subnet]
+ # format as tag node to avoid loading problems
+ config.set_tag(base_network + ['subnet'])
+
+ # Make node "set service dhcp-server shared-network-name <xyz> subnet 172.31.0.0/24 ip-forwarding enable" valueless
+ if config.exists(base_subnet + ['ip-forwarding', 'enable']):
+ bool_val = config.return_value(base_subnet + ['ip-forwarding', 'enable'])
+ # Delete the node with the old syntax
+ config.delete(base_subnet + ['ip-forwarding'])
+ if str(bool_val) == 'true':
+ # Recreate node with new syntax
+ config.set(base_subnet + ['ip-forwarding'], value=None)
+
+ # Rename node "set service dhcp-server shared-network-name <xyz> subnet 172.31.0.0/24 start <172.16.0.4> stop <172.16.0.9>
+ if config.exists(base_subnet + ['start']):
+ # This is the new "range" id for DHCP lease ranges
+ r_id = 0
+ for range in config.list_nodes(base_subnet + ['start']):
+ range_start = range
+ range_stop = config.return_value(base_subnet + ['start', range_start, 'stop'])
+
+ # Delete the node with the old syntax
+ config.delete(base_subnet + ['start', range_start])
+
+ # Create the node for the new syntax
+ # Note: range is a tag node, counter is its child, not a value
+ config.set(base_subnet + ['range', r_id])
+ config.set(base_subnet + ['range', r_id, 'start'], value=range_start)
+ config.set(base_subnet + ['range', r_id, 'stop'], value=range_stop)
+
+ # format as tag node to avoid loading problems
+ config.set_tag(base_subnet + ['range'])
+
+ # increment range id for possible next range definition
+ r_id += 1
+
+ # Delete the node with the old syntax
+ config.delete(['service', 'dhcp-server', 'shared-network-name', network, 'subnet', subnet, 'start'])
+
+
+ # Make node "set service dhcp-server shared-network-name <xyz> authoritative" valueless
+ if config.exists(['service', 'dhcp-server', 'shared-network-name', network, 'authoritative']):
+ bool_val = config.return_value(['service', 'dhcp-server', 'shared-network-name', network, 'authoritative'])
+ # Delete the node with the old syntax
+ config.delete(['service', 'dhcp-server', 'shared-network-name', network, 'authoritative'])
+ if str(bool_val) == 'true':
+ # Recreate node with new syntax
+ config.set(['service', 'dhcp-server', 'shared-network-name', network, 'authoritative'])
+
+ 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)