def handle_leaked_rt_event():
_leaked_rt_evt_handle = cps.event_connect()
cps.event_register(_leaked_rt_evt_handle, _leaked_rt_key)
while True:
leaked_rt_evt = cps.event_wait(_leaked_rt_evt_handle)
obj = cps_object.CPSObject(obj=leaked_rt_evt)
if obj is None:
continue
if not 'operation' in leaked_rt_evt.keys():
continue
op = None
if leaked_rt_evt['operation'] == 'create':
op = 'add'
if leaked_rt_evt['operation'] == 'delete':
op = 'del'
src_vrf_name = None
af = None
prefix = None
prefix_len = 0
dst_vrf_name = None
try:
dst_vrf_name = obj.get_attr_data(
'os-re/os-leak-route-config/vrf-name')
af = obj.get_attr_data('os-re/os-leak-route-config/af')
prefix = obj.get_attr_data(
'os-re/os-leak-route-config/route-prefix')
prefix = binascii.unhexlify(prefix)
prefix = get_ip_str(af, prefix)
prefix_len = obj.get_attr_data(
'os-re/os-leak-route-config/prefix-len')
src_vrf_name = obj.get_attr_data(
'os-re/os-leak-route-config/src-vrf-name')
except ValueError as e:
log_err(
'Error - Mandatatory object attributes are not present for route leak configuration!'
)
continue
global _vrf_mutex
_vrf_mutex.acquire()
ret_val, nexthop_ip, nexthop_ip6 = _veth_ip_get(
dst_vrf_name, src_vrf_name, True)
_vrf_mutex.release()
if ret_val is False:
log_err('veth info. not found while handling src-vrf:%s af:%s prefix:%s/%s dst-vrd:%s'\
% (src_vrf_name, str(af), prefix, str(prefix_len), dst_vrf_name))
continue
if af == socket.AF_INET6:
nexthop_ip = nexthop_ip6
if dn_base_vrf_tool.process_leaked_rt_config(op, af, dst_vrf_name, prefix,\
prefix_len, nexthop_ip) != True:
log_err('VRF route leaking configuration failed op:%s src-vrf:%s af:%s prefix:%s/%s dst-vrd:%s'\
% (op, src_vrf_name, str(af), prefix, str(prefix_len), dst_vrf_name))
continue
def config_outgoing_ip_svcs_int(methods, params):
obj = cps_object.CPSObject(obj=params['change'])
in_param_list = {}
log_info('Callback for outgoing IP service configuration')
def get_svcs_attr_val(attr_name, dft_val=None):
attr_id = outgoing_ip_svcs_attr(attr_name)
try:
attr_val = obj.get_attr_data(attr_id)
except ValueError:
attr_val = None
if attr_val is None:
attr_val = dft_val
in_param_list[attr_name] = attr_val
return attr_val
operation = params['operation']
vrf_name = get_svcs_attr_val('ni-name')
af = get_svcs_attr_val('af')
public_ip_attr = get_svcs_attr_val('public-ip')
outgoing_source_ip_attr = get_svcs_attr_val('outgoing-source-ip')
protocol = get_svcs_attr_val('protocol')
public_port = get_svcs_attr_val('public-port')
private_ip_attr = get_svcs_attr_val('private-ip')
private_port = get_svcs_attr_val('private-port')
rule_id = get_svcs_attr_val('id')
orig_af = af
public_ip = None
# check public IP
if public_ip_attr is not None:
af_ip = normalize_ip_with_prefix(orig_af, public_ip_attr)
if af_ip is None:
log_err('Invalid public IP %s for rule configuration' %
public_ip_attr)
return False
af, public_ip, _ = af_ip
if orig_af is None:
log_info('Address family %d is deducted from input public IP %s' %
(af, public_ip_attr))
in_param_list['af'] = af
in_param_list['public-ip'] = public_ip
orig_af = af
outgoing_source_ip = None
# check outgoing source IP
if outgoing_source_ip_attr is not None:
af_ip = normalize_ip_with_prefix(orig_af, outgoing_source_ip_attr)
if af_ip is None:
log_err('Invalid outgoing source IP %s for rule configuration' %
outgoing_source_ip_attr)
return False
af, outgoing_source_ip, _ = af_ip
if orig_af is None:
log_info('Address family %d is deducted from input source IP %s' %
(af, outgoing_source_ip_attr))
in_param_list['af'] = af
in_param_list['outgoing-source-ip'] = outgoing_source_ip
orig_af = af
private_ip = None
# check private IP
if private_ip_attr is not None:
af_ip = normalize_ip_with_prefix(orig_af, private_ip_attr)
if af_ip is None:
log_err('Invalid private IP %s for rule configuration' %
private_ip_attr)
return False
af, private_ip, _ = af_ip
if orig_af is None:
log_info('Address family %d is deducted from input private IP %s' %
(af, private_ip_attr))
in_param_list['af'] = af
in_param_list['private-ip'] = private_ip
"""
The input object stands for Source IP configuration request if:
1. Outgoing source IP attribute is given
For all other cases, input object stands for VRF outgoing IP service
binding request.
"""
def is_egress_source_ip_config():
if outgoing_source_ip is not None:
return True
return False
log_info('Input parameters:')
for name, val in in_param_list.items():
if val is not None:
if name == 'public-ip' or name == 'outgoing-source-ip' or name == 'private-ip':
log_info(' %-10s - %s' % (name, binascii.hexlify(val)))
else:
log_info(' %-10s - %s' % (name, str(val)))
if is_egress_source_ip_config():
log_info('Handle Outgoing Source IP configuration, operation: %s' %
operation)
rule_type = VrfSvcsRuleType.RULE_TYPE_SNAT
action = VrfSvcsRuleAction.RULE_ACTION_SNAT
reqd_input = [
'ni-name', 'af', 'public-ip', 'protocol', 'public-port',
'outgoing-source-ip'
]
else:
log_info(
'Handle Outgoing IP service binding configuration, operation: %s' %
operation)
rule_type = VrfSvcsRuleType.RULE_TYPE_OUT_IP
action = VrfSvcsRuleAction.RULE_ACTION_DNAT
reqd_input = ['ni-name', 'af', 'public-ip', 'protocol', 'public-port']
def check_rule_input(missed_attr_list=None):
""" The keys to identify a rule """
if operation == 'delete':
"""
For delete operation, either rule ID or rule keys need to be given to find
rule to be deleted
"""
if rule_id is not None:
return True
else:
if check_attr_list(reqd_input, in_param_list,
missed_attr_list):
return True
elif operation == 'set':
"""
set operation, not supported on outgoing IP service configuration
"""
return False
elif operation == 'create':
"""
For create operation, all key attributes need to be given
"""
if check_attr_list(reqd_input, in_param_list, missed_attr_list):
return True
return False
not_found_list = []
if not check_rule_input(not_found_list):
log_err(
'Operation not support or Mandatory attributes %s not found for operation %s'
% (str(not_found_list), operation))
return False
log_info(
'Outgoing IP service rule: Operation %s VRF %s AF %s%s%s%s%s%s' %
(operation, vrf_name, (_af[af] if af is not None else ' '),
(' public-ip %s' %
(get_ip_str(af, public_ip)) if public_ip is not None else ''),
(' protocol %s' %
_protocol[protocol] if protocol is not None else ''),
(' public-port %d' % public_port if public_port is not None else ''),
(' outgoing-source-ip %s' % (get_ip_str(af, outgoing_source_ip))
if outgoing_source_ip is not None else ''),
(' ID %d' % rule_id if rule_id is not None else '')))
try:
if operation == 'set':
return False
elif operation == 'create':
ret_val, private_ip, private_port = process_vrf_outgoing_svcs_rule_add(
rule_type,
vrf_name,
action,
af,
dst_ip=public_ip,
protocol=protocol,
dst_port=public_port,
out_src_ip=outgoing_source_ip,
private_ip=private_ip,
private_port=private_port,
rule_id=rule_id)
log_info(
'%s in adding outgoing %s: VRF %s AF %s%s%s%s%s%s%s%s%s' %
(('Success' if ret_val is not None else 'Failure'),
('%s rule' % 'SNAT' if rule_type
== VrfSvcsRuleType.RULE_TYPE_SNAT else 'IP'), vrf_name,
(_af[af] if af is not None else ' '),
(' PROTO %s' %
_protocol[protocol] if protocol is not None else ''),
(' DST IP %s' %
get_ip_str(af, public_ip) if public_ip is not None else ''),
(' PORT %d' % public_port if public_port is not None else ''),
(' ACTION %s' %
_action[action] if action is not None else ''),
(' SRC IP %s' % get_ip_str(af, outgoing_source_ip)
if outgoing_source_ip is not None else ''),
(' PRIVATE IP %s' % get_ip_str(af, private_ip)
if private_ip is not None else ''),
(' PRIVATE PORT %d' %
private_port if private_port is not None else ''),
(' ID %d' % ret_val if ret_val is not None else '')))
if ret_val is not None:
if rule_type == VrfSvcsRuleType.RULE_TYPE_SNAT:
#SNAT flow
obj.add_attr(outgoing_ip_svcs_attr('id'), ret_val)
params['change'] = obj.get()
else:
#DNAT - service binding flow
private_ip = binascii.hexlify(private_ip)
cps_obj = cps_object.CPSObject(
module='vrf-firewall/ns-outgoing-service',
qual='target',
data={
outgoing_ip_svcs_attr('id'): ret_val,
outgoing_ip_svcs_attr('ni-name'): vrf_name,
outgoing_ip_svcs_attr('af'): af,
outgoing_ip_svcs_attr('public-ip'): public_ip_attr,
outgoing_ip_svcs_attr('protocol'): protocol,
outgoing_ip_svcs_attr('public-port'): public_port,
outgoing_ip_svcs_attr('private-ip'): private_ip,
outgoing_ip_svcs_attr('private-port'): private_port
})
params['change'] = cps_obj.get()
return True
elif operation == 'delete':
if rule_id is None:
ret_val = process_vrf_outgoing_svcs_rule_del(
rule_type,
vrf_name,
action,
af,
dst_ip=public_ip,
protocol=protocol,
dst_port=public_port,
out_src_ip=outgoing_source_ip,
private_ip=private_ip,
private_port=private_port)
else:
ret_val = process_vrf_outgoing_svcs_rule_del_by_id(rule_id)
if ret_val is True:
#deleted successfully
return True
except Exception as e:
log_msg = ('%s %s %s' % ('Failed to commit operation.', e, params))
log_err(log_msg)
return False
log_err(
'Outgoing IP service rule: Operation %s Failed VRF %s AF %s%s%s%s%s%s'
%
(operation, vrf_name, (_af[af] if af is not None else ' '),
(' public-ip %s' %
(get_ip_str(af, public_ip)) if public_ip is not None else ''),
(' protocol %s' %
_protocol[protocol] if protocol is not None else ''),
(' public-port %d' % public_port if public_port is not None else ''),
(' outgoing-source-ip %s' % (get_ip_str(af, outgoing_source_ip))
if outgoing_source_ip is not None else ''),
(' ID %d' % rule_id if rule_id is not None else '')))
return False
def config_incoming_ip_svcs_int(methods, params):
obj = cps_object.CPSObject(obj=params['change'])
in_param_list = {}
log_info('Callback for incoming IP service configuration')
def get_svcs_attr_val(attr_name, dft_val=None):
attr_id = incoming_ip_svcs_attr(attr_name)
try:
attr_val = obj.get_attr_data(attr_id)
except ValueError:
attr_val = None
if attr_val is None:
attr_val = dft_val
in_param_list[attr_name] = attr_val
return attr_val
operation = params['operation']
af = get_svcs_attr_val('af')
vrf_name = get_svcs_attr_val('ni-name')
protocol = get_svcs_attr_val('protocol')
dst_port = get_svcs_attr_val('dst-port')
low_dst_port = get_svcs_attr_val('lower-dst-port')
high_dst_port = get_svcs_attr_val('upper-dst-port')
action = get_svcs_attr_val('action')
src_ip = get_svcs_attr_val('src-ip')
src_prefix_len = get_svcs_attr_val('src-prefix-len')
dst_ip = get_svcs_attr_val('dst-ip')
dst_prefix_len = get_svcs_attr_val('dst-prefix-len')
in_intf = get_svcs_attr_val('ifname')
if operation == 'create':
# set default seq number to 0 for create
seq_num = get_svcs_attr_val('seq-num', 0)
else:
seq_num = get_svcs_attr_val('seq-num')
rule_id = get_svcs_attr_val('id')
# check source and destination IP
if src_ip is not None:
ip_tuple = normalize_ip_with_prefix(af, src_ip, src_prefix_len)
if ip_tuple is None:
log_err('Failed to normalize source IP with prefix')
return False
orig_af = af
af, src_ip, src_prefix_len = ip_tuple
if orig_af is None:
log_info('Address family %d is deduced from input source IP %s' %
(af, src_ip))
in_param_list['af'] = af
in_param_list['src-ip'] = src_ip
in_param_list['src-prefix-len'] = src_prefix_len
if dst_ip is not None:
ip_tuple = normalize_ip_with_prefix(af, dst_ip, dst_prefix_len)
if ip_tuple is None:
log_err('Failed to normalize destination IP with prefix')
return False
orig_af = af
af, dst_ip, dst_prefix_len = ip_tuple
if orig_af is None:
log_info(
'Address family %d is deduced from input destination IP %s' %
(af, dst_ip))
in_param_list['af'] = af
in_param_list['dst-ip'] = dst_ip
in_param_list['dst-prefix-len'] = dst_prefix_len
# check lower & upper destination ports
if low_dst_port is not None and high_dst_port is None:
log_err('Missing upper-dst-port for VTY ACL rule configuration')
return False
if low_dst_port is None and high_dst_port is not None:
log_err('Missing lower-dst-port for VTY ACL rule configuration')
return False
if (low_dst_port is not None
or high_dst_port is not None) and dst_port is not None:
log_err('Invalid VTY ACL rule configuration, \
dst port attribute cannot be configured along with dst port range attributes'
)
return False
"""
The input object stands for VTY ACL configuration request if:
1. Destination L4 port attribute is not given or given value is 0,
2. Or Source IP address attribute is given,
3. Or lower & upper destination L4 port attributes are given.
For all other cases, input object stands for VRF incoming IP service
request.
"""
def is_vty_acl_config():
if dst_port is None or dst_port == 0:
return True
if src_ip is not None:
return True
if low_dst_port is not None and high_dst_port is not None:
return True
return False
log_info('Input parameters:')
for name, val in in_param_list.items():
if val is not None:
if name == 'src-ip' or name == 'dst-ip':
log_info(' %-10s - %s' % (name, binascii.hexlify(val)))
else:
log_info(' %-10s - %s' % (name, str(val)))
if is_vty_acl_config():
log_info('Handle VTY ACL configuration, operation: %s' % operation)
rule_type = VrfSvcsRuleType.RULE_TYPE_ACL
reqd_input = ['ni-name', 'af', 'src-ip', 'src-prefix-len', 'action']
else:
log_info('Handle incoming IP configuration, operation: %s' % operation)
rule_type = VrfSvcsRuleType.RULE_TYPE_IP
reqd_input = ['af', 'ni-name', 'protocol', 'dst-port']
if vrf_name == 'default':
reqd_input.append('action')
def check_rule_input(missed_attr_list=None):
""" The keys to identify a rule """
if operation == 'delete':
"""
For delete operation, either rule ID or rule keys need to be given to find
rule to be deleted
"""
if rule_id is not None:
return True
else:
if check_attr_list(reqd_input, in_param_list,
missed_attr_list):
return True
elif operation == 'set':
"""
For set operation, rule ID is the only required input to find the rule to be
updated. And the attributes of the rule will be changed to attribute value
given by input
"""
if rule_id is not None:
return True
else:
if missed_attr_list is not None:
missed_attr_list.append('id')
elif operation == 'create':
"""
For create operation, all key attributes plus sequence number need to be given
by input
"""
if check_attr_list(reqd_input + ['seq-num'], in_param_list,
missed_attr_list):
return True
return False
not_found_list = []
if not check_rule_input(not_found_list):
log_err('Mandatory attributes %s not found for operation %s' %
(str(not_found_list), operation))
return False
if operation == 'create':
if rule_type == VrfSvcsRuleType.RULE_TYPE_IP and vrf_name != 'default':
"""
If it is IP forwarding rule and the name space is not default, we set its action
type as DNAT
"""
dst_ip = dn_base_vrf_tool.get_veth_ip(af, vrf_name)
action = VrfSvcsRuleAction.RULE_ACTION_DNAT
else:
if (dst_port is not None
and protocol != VrfSvcsRuleProto.RULE_PROTO_TCP
and protocol != VrfSvcsRuleProto.RULE_PROTO_UDP):
log_err(
'L4 destination port filter must with protocol type TCP or UDP'
)
return False
if (low_dst_port is not None
and protocol != VrfSvcsRuleProto.RULE_PROTO_TCP
and protocol != VrfSvcsRuleProto.RULE_PROTO_UDP):
log_err(
'L4 destination port range filter must with protocol type TCP or UDP'
)
return False
ret_val = process_vrf_svcs_rule_add(rule_type,
vrf_name,
action,
af,
src_ip=src_ip,
src_prefix_len=src_prefix_len,
dst_ip=dst_ip,
dst_prefix_len=dst_prefix_len,
seq_num=seq_num,
protocol=protocol,
dst_port=dst_port,
low_dst_port=low_dst_port,
high_dst_port=high_dst_port,
in_intf=in_intf,
rule_id=rule_id)
if ret_val is None:
log_err(
'Failed to add incoming IP rule: VRF %s AF %s%s%s%s%s%s%s%s%s%s%s'
% (vrf_name, _af[af],
(' IIF %s' % in_intf if in_intf is not None else ' '),
(' SRC %s/%d' % (get_ip_str(af, src_ip), src_prefix_len) if
src_ip is not None and src_prefix_len is not None else ''),
(' DST %s/%d' % (get_ip_str(af, dst_ip), dst_prefix_len) if
dst_ip is not None and dst_prefix_len is not None else ''),
(' PROTO %s' %
_protocol[protocol] if protocol is not None else ''),
(' PORT %d' % dst_port if dst_port is not None else ''),
(' PORT RANGE %d-%d' % (low_dst_port, high_dst_port)
if low_dst_port is not None else ''),
(' SEQ %d' % seq_num if seq_num is not None else ''),
(' ACTION %s' %
_action[action] if action is not None else ''),
(' DST %s' %
get_ip_str(af, dst_ip) if dst_ip is not None else ''),
(' ID %d' % rule_id if rule_id is not None else '')))
return False
if rule_id is not None and ret_val != rule_id:
log_err('Given rule id %d is not equal to actually used id %d' %
(rule_id, ret_val))
obj.add_attr(incoming_ip_svcs_attr('id'), ret_val)
params['change'] = obj.get()
elif operation == 'set':
ret_val = process_vrf_svcs_rule_set(rule_id,
src_ip=src_ip,
src_prefix_len=src_prefix_len,
protocol=protocol,
dst_ip=dst_ip,
dst_prefix_len=dst_prefix_len,
dst_port=dst_port,
action=action,
low_dst_port=low_dst_port,
high_dst_port=high_dst_port,
seq_num=seq_num,
in_intf=in_intf)
if not ret_val:
log_err('Failed to update rule with ID %d' % rule_id)
return False
elif operation == 'delete':
if rule_id is None:
if rule_type == VrfSvcsRuleType.RULE_TYPE_IP and vrf_name != 'default':
"""
If it is IP forwarding rule and the name space is not default, we set its action
type as DNAT
"""
dst_ip = dn_base_vrf_tool.get_veth_ip(af, vrf_name)
action = VrfSvcsRuleAction.RULE_ACTION_DNAT
ret_val = process_vrf_svcs_rule_del(rule_type,
vrf_name,
action,
af,
src_ip=src_ip,
src_prefix_len=src_prefix_len,
dst_ip=dst_ip,
dst_prefix_len=dst_prefix_len,
protocol=protocol,
dst_port=dst_port,
low_dst_port=low_dst_port,
high_dst_port=high_dst_port,
in_intf=in_intf)
else:
ret_val = process_vrf_svcs_rule_del_by_id(rule_id)
if not ret_val:
log_err('Failed to delete rule')
return False
else:
log_err('Invalid operation type %s' % operation)
return False
return True