diff options
Diffstat (limited to 'src/conf_mode/dhcp_server.py')
| -rwxr-xr-x | src/conf_mode/dhcp_server.py | 66 |
1 files changed, 34 insertions, 32 deletions
diff --git a/src/conf_mode/dhcp_server.py b/src/conf_mode/dhcp_server.py index 1458ed1d0..a26e4626a 100755 --- a/src/conf_mode/dhcp_server.py +++ b/src/conf_mode/dhcp_server.py @@ -38,8 +38,8 @@ config_tmpl = """ # For options please consult the following website: # https://www.isc.org/wp-content/uploads/2017/08/dhcp43options.html - -log-facility local7; +# +# log-facility local7; {% if hostfile_update %} on commit { @@ -112,12 +112,12 @@ failover peer "{{ subnet.failover_name }}" { {% for network in shared_network %} {%- if not network.disabled -%} shared-network {{ network.name }} { - {% if network.authoritative %}authoritative;{% endif %} + {{ "authoritative;" if network.authoritative }} {%- if network.network_parameters %} # The following {{ network.network_parameters | length }} line(s) were added as shared-network-parameters in the CLI and have not been validated {%- for param in network.network_parameters %} {{ param }} - {%- endfor -%} + {%- endfor %} {%- endif %} {%- for subnet in network.subnet %} subnet {{ subnet.address }} netmask {{ subnet.netmask }} { @@ -195,9 +195,15 @@ shared-network {{ network.name }} { } {%- endif %} {%- endfor %} - {%- for range in subnet.range %} - range {{ range.start }} {{ range.stop }}; - {%- endfor %} + pool { + {%- if subnet.failover_name %} + failover peer "{{ subnet.failover_name }}"; + deny dynamic bootp clients; + {%- endif %} + {%- for range in subnet.range %} + range {{ range.start }} {{ range.stop }}; + {%- endfor %} + } } {%- endfor %} on commit { set shared-networkname = "{{ network.name }}"; } @@ -606,17 +612,17 @@ def verify(dhcp): raise ConfigError('No DHCP shared networks configured.\n' \ 'At least one DHCP shared network must be configured.') + # Inspect shared-network/subnet + failover_names = [] + listen_ok = False + subnets = [] + # A shared-network requires a subnet definition for network in dhcp['shared_network']: if len(network['subnet']) == 0: raise ConfigError('No DHCP lease subnets configured for {0}. At least one\n' \ 'lease subnet must be configured for each shared network.'.format(network['name'])) - # Inspect our subnet configuration - failover_names = [] - listen_ok = False - subnets = [] - for network in dhcp['shared_network']: for subnet in network['subnet']: # Subnet static route declaration requires destination and router if subnet['static_subnet'] or subnet['static_router']: @@ -650,34 +656,34 @@ def verify(dhcp): stop = range['stop'] # DHCP stop IP required after start IP if start and not stop: - raise ConfigError('Stop IP address in DHCP range for start {0} is not defined!'.format(start)) + raise ConfigError('DHCP range stop address for start {0} is not defined!'.format(start)) # Start address must be inside network if not ipaddress.ip_address(start) in ipaddress.ip_network(subnet['network']): - raise ConfigError('Start IP address {0} of DHCP range is not in subnet {1}\n' \ + raise ConfigError('DHCP range start address {0} is not in subnet {1}\n' \ 'specified for shared network {2}!'.format(start, subnet['network'], network['name'])) # Stop address must be inside network if not ipaddress.ip_address(stop) in ipaddress.ip_network(subnet['network']): - raise ConfigError('Stop IP address {0} of DHCP range is not in subnet {1}\n' \ + raise ConfigError('DHCP range stop address {0} is not in subnet {1}\n' \ 'specified for shared network {2}!'.format(stop, subnet['network'], network['name'])) # Stop address must be greater or equal to start address if not ipaddress.ip_address(stop) >= ipaddress.ip_address(start): - raise ConfigError('Stop IP address {0} of DHCP range should be greater or equal\n' \ - 'to the start IP address {1} of this range!'.format(stop, start)) + raise ConfigError('DHCP range stop address {0} must be greater or equal\n' \ + 'to the range start address {1}!'.format(stop, start)) # Range start address must be unique if start in range_start: raise ConfigError('Conflicting DHCP lease range:\n' \ - 'Pool start IP address {0} defined multipe times!'.format(range['start'])) + 'Pool start address {0} defined multipe times!'.format(start)) else: range_start.append(start) # Range stop address must be unique if stop in range_stop: raise ConfigError('Conflicting DHCP lease range:\n' \ - 'Pool stop IP address {0} defined multipe times!'.format(range['stop'])) + 'Pool stop address {0} defined multipe times!'.format(stop)) else: range_stop.append(stop) @@ -705,18 +711,18 @@ def verify(dhcp): for mapping in subnet['static_mapping']: # Static IP address must be configured if not mapping['ip_address']: - raise ConfigError('No static lease IP address specified for static mapping {0}\n' \ - 'under shared network name {1}!'.format(mapping['name'], network['name'])) + raise ConfigError('DHCP static lease IP address not specified for static mapping\n' \ + '{0} under shared network name {1}!'.format(mapping['name'], network['name'])) # Static IP address must be in bound if not ipaddress.ip_address(mapping['ip_address']) in ipaddress.ip_network(subnet['network']): - raise ConfigError('Static DHCP lease IP address {0} under static mapping {1}\n' \ - 'in shared network {2} is outside DHCP lease network {3}!' \ + raise ConfigError('DHCP static lease IP address {0} for static mapping {1}\n' \ + 'in shared network {2} is outside DHCP lease subnet {3}!' \ .format(mapping['ip_address'], mapping['name'], network['name'], subnet['network'])) # Static mapping requires MAC address if not mapping['mac_address']: - raise ConfigError('No static lease MAC address specified for static mapping\n' \ + raise ConfigError('DHCP static lease MAC address not specified for static mapping\n' \ '{0} under shared network name {1}!'.format(mapping['name'], network['name'])) # There must be one subnet connected to a listen interface. @@ -725,28 +731,24 @@ def verify(dhcp): if vyos.validate.is_subnet_connected(subnet['network'], primary=True): listen_ok = True - # # Subnets must be non overlapping - # if subnet['network'] in subnets: - raise ConfigError('Subnets must be unique! Subnet {0} defined multiple times!'.format(subnet)) + raise ConfigError('DHCP subnets must be unique! Subnet {0} defined multiple times!'.format(subnet)) else: subnets.append(subnet['network']) - # # Check for overlapping subnets - # net = ipaddress.ip_network(subnet['network']) for n in subnets: net2 = ipaddress.ip_network(n) - if (net.compare_networks(net2) != 0): + if (net != net2): if net.overlaps(net2): - raise ConfigError('Conflicting subnet ranges: {0} overlaps with {1}'.format(net, net2)) + raise ConfigError('DHCP conflicting subnet ranges: {0} overlaps {1}'.format(net, net2)) if not listen_ok: raise ConfigError('None of the DHCP lease subnets are inside any configured subnet on\n' \ 'broadcast interfaces. At least one lease subnet must be set such that\n' \ - 'DHCP server listens on a one broadcast interface') + 'DHCP server listens on a one broadcast interface!') return None |