diff options
Diffstat (limited to 'resources/libraries/python/SRv6.py')
| -rw-r--r-- | resources/libraries/python/SRv6.py | 58 |
1 files changed, 50 insertions, 8 deletions
diff --git a/resources/libraries/python/SRv6.py b/resources/libraries/python/SRv6.py index 03a55a41ed..fe706f5f70 100644 --- a/resources/libraries/python/SRv6.py +++ b/resources/libraries/python/SRv6.py @@ -32,6 +32,12 @@ SRV6BEHAVIOUR_END_DT4 = 'end.dt4' SRV6BEHAVIOUR_END_DX6 = 'end.dx6' # Endpoint with decapsulation and IPv6 table lookup SRV6BEHAVIOUR_END_DT6 = 'end.dt6' +# Endpoint to SR-unaware appliance via static proxy +SRV6BEHAVIOUR_END_AS = 'end.as' +# Endpoint to SR-unaware appliance via dynamic proxy +SRV6BEHAVIOUR_END_AD = 'end.ad' +# Endpoint to SR-unaware appliance via masquerading +SRV6BEHAVIOUR_END_AM = 'end.am' class SRv6(object): @@ -42,7 +48,8 @@ class SRv6(object): @staticmethod def configure_sr_localsid(node, local_sid, behavior, interface=None, - next_hop=None, fib_table=None): + next_hop=None, fib_table=None, out_if=None, + in_if=None, src_addr=None, sid_list=None): """Create SRv6 LocalSID and binds it to a particular behaviour on the given node. @@ -55,12 +62,27 @@ class SRv6(object): xconnects). :param fib_table: FIB table for IPv4/IPv6 lookup (Optional, required for L3 routing). + :param out_if: Interface name of local interface for sending traffic + towards the Service Function (Optional, required for SRv6 endpoint + to SR-unaware appliance). + :param in_if: Interface name of local interface receiving the traffic + coming back from the Service Function (Optional, required for SRv6 + endpoint to SR-unaware appliance). + :param src_addr: Source address on the packets coming back on in_if + interface (Optional, required for SRv6 endpoint to SR-unaware + appliance via static proxy). + :param sid_list: SID list (Optional, required for SRv6 endpoint to + SR-unaware appliance via static proxy). :type node: dict :type local_sid: str :type behavior: str :type interface: str :type next_hop: int :type fib_table: str + :type out_if: str + :type in_if: str + :type src_addr: str + :type sid_list: list :raises ValueError: If unsupported SRv6 LocalSID function used or required parameter is missing. """ @@ -69,20 +91,36 @@ class SRv6(object): elif behavior in [SRV6BEHAVIOUR_END_X, SRV6BEHAVIOUR_END_DX4, SRV6BEHAVIOUR_END_DX6]: if interface is None or next_hop is None: - raise ValueError('Required data missing.\ninterface:{0}\n' - 'next_hop:{1}'.format(interface, next_hop)) + raise ValueError('Required parameter(s) missing.\ninterface:{0}' + '\nnext_hop:{1}'.format(interface, next_hop)) interface_name = Topology.get_interface_name(node, interface) params = '{0} {1}'.format(interface_name, next_hop) elif behavior == SRV6BEHAVIOUR_END_DX2: if interface is None: - raise ValueError('Required data missing.\ninterface:{0}\n'. + raise ValueError('Required parameter missing.\ninterface:{0}'. format(interface)) params = '{0}'.format(interface) elif behavior in [SRV6BEHAVIOUR_END_DT4, SRV6BEHAVIOUR_END_DT6]: if fib_table is None: - raise ValueError('Required data missing.\nfib_table:{0}\n'. + raise ValueError('Required parameter missing.\nfib_table: {0}'. format(fib_table)) params = '{0}'.format(fib_table) + elif behavior == SRV6BEHAVIOUR_END_AS: + if next_hop is None or out_if is None or in_if is None or \ + src_addr is None or sid_list is None: + raise ValueError('Required parameter(s) missing.\nnext_hop:{0}' + '\nout_if:{1}\nin_if:{2}\nsrc_addr:{3}\n' + 'sid_list:{4}'.format(next_hop, out_if, in_if, + src_addr, sid_list)) + sid_conf = 'next ' + ' next '.join(sid_list) + params = 'nh {0} oif {1} iif {2} src {3} {4}'.\ + format(next_hop, out_if, in_if, src_addr, sid_conf) + elif behavior in [SRV6BEHAVIOUR_END_AD, SRV6BEHAVIOUR_END_AM]: + if next_hop is None or out_if is None or in_if is None: + raise ValueError('Required parameter(s) missing.\nnext_hop:{0}' + '\nout_if:{1}\nin_if:{2}'. + format(next_hop, out_if, in_if)) + params = 'nh {0} oif {1} iif {2}'.format(next_hop, out_if, in_if) else: raise ValueError('Unsupported SRv6 LocalSID function: {0}'. format(behavior)) @@ -217,9 +255,13 @@ class SRv6(object): vat.vat_terminal_exec_cmd_from_template( 'srv6/sr_steer_add_del.vat', params=params, bsid=bsid) - if "exec error: Misc" in vat.vat_stdout: - raise RuntimeError('Create SRv6 steering policy for BindingSID {0}' - ' failed on node {1}'.format(bsid, node['host'])) + sr_steer_errors = ("exec error: Misc", + "sr steer: No SR policy specified") + for err in sr_steer_errors: + if err in vat.vat_stdout: + raise RuntimeError('Create SRv6 steering policy for BindingSID' + ' {0} failed on node {1}'. + format(bsid, node['host'])) @staticmethod def delete_sr_steer(node, mode, bsid, interface=None, ip_addr=None, |