def to_match_masked_int(value):
if isinstance(value, str) and '/' in value:
value = value.split('/')
return (ofctl_utils.str_to_int(value[0]),
ofctl_utils.str_to_int(value[1]))
else:
return ofctl_utils.str_to_int(value)
def to_instructions(dp, insts):
instructions = []
ofp = dp.ofproto
parser = dp.ofproto_parser
for i in insts:
inst_type = i.get('type')
if inst_type in ['APPLY_ACTIONS', 'WRITE_ACTIONS']:
dics = i.get('actions', [])
actions = _get_actions(dp, dics)
if actions:
if inst_type == 'APPLY_ACTIONS':
instructions.append(
parser.OFPInstructionActions(ofp.OFPIT_APPLY_ACTIONS,
actions))
else:
instructions.append(
parser.OFPInstructionActions(ofp.OFPIT_WRITE_ACTIONS,
actions))
elif inst_type == 'CLEAR_ACTIONS':
instructions.append(
parser.OFPInstructionActions(ofp.OFPIT_CLEAR_ACTIONS, []))
elif inst_type == 'GOTO_TABLE':
table_id = int(i.get('table_id'))
instructions.append(parser.OFPInstructionGotoTable(table_id))
elif inst_type == 'WRITE_METADATA':
metadata = ofctl_utils.str_to_int(i.get('metadata'))
metadata_mask = (ofctl_utils.str_to_int(i['metadata_mask'])
if 'metadata_mask' in i else parser.UINT64_MAX)
instructions.append(
parser.OFPInstructionWriteMetadata(metadata, metadata_mask))
else:
LOG.error('Unknown instruction type: %s', inst_type)
return instructions
def to_match_masked_int(value):
if isinstance(value, str) and '/' in value:
value = value.split('/')
return (ofctl_utils.str_to_int(value[0]),
ofctl_utils.str_to_int(value[1]))
else:
return ofctl_utils.str_to_int(value)
def to_instructions(dp, insts):
instructions = []
ofp = dp.ofproto
parser = dp.ofproto_parser
for i in insts:
inst_type = i.get("type")
if inst_type in ["APPLY_ACTIONS", "WRITE_ACTIONS"]:
dics = i.get("actions", [])
actions = _get_actions(dp, dics)
if actions:
if inst_type == "APPLY_ACTIONS":
instructions.append(parser.OFPInstructionActions(ofp.OFPIT_APPLY_ACTIONS, actions))
else:
instructions.append(parser.OFPInstructionActions(ofp.OFPIT_WRITE_ACTIONS, actions))
elif inst_type == "CLEAR_ACTIONS":
instructions.append(parser.OFPInstructionActions(ofp.OFPIT_CLEAR_ACTIONS, []))
elif inst_type == "GOTO_TABLE":
table_id = int(i.get("table_id"))
instructions.append(parser.OFPInstructionGotoTable(table_id))
elif inst_type == "WRITE_METADATA":
metadata = ofctl_utils.str_to_int(i.get("metadata"))
metadata_mask = ofctl_utils.str_to_int(i["metadata_mask"]) if "metadata_mask" in i else parser.UINT64_MAX
instructions.append(parser.OFPInstructionWriteMetadata(metadata, metadata_mask))
elif inst_type == "METER":
meter_id = int(i.get("meter_id"))
instructions.append(parser.OFPInstructionMeter(meter_id))
else:
LOG.error("Unknown instruction type: %s", inst_type)
return instructions
def ct(cls, ofproto, action_str):
str_to_port = {'ftp': 21, 'tftp': 69}
flags = 0
zone_src = ""
zone_ofs_nbits = 0
recirc_table = nicira_ext.NX_CT_RECIRC_NONE
alg = 0
ct_actions = []
if len(action_str) > 2:
if (not action_str.startswith('ct(') or action_str[-1] != ')'):
raise ryu.exception.OFPInvalidActionString(
action_str=action_str)
rest = tokenize_ofp_instruction_arg(action_str[len('ct('):-1])
else:
rest = []
for arg in rest:
if arg == 'commit':
flags |= nicira_ext.NX_CT_F_COMMIT
rest = rest[len('commit'):]
elif arg == 'force':
flags |= nicira_ext.NX_CT_F_FORCE
elif arg.startswith('exec('):
ct_actions = ofp_instruction_from_str(ofproto,
arg[len('exec('):-1])
else:
try:
k, v = arg.split('=', 1)
if k == 'table':
recirc_table = str_to_int(v)
elif k == 'zone':
m = re.search('\[(\d*)\.\.(\d*)\]', v)
if m:
zone_ofs_nbits = nicira_ext.ofs_nbits(
int(m.group(1)), int(m.group(2)))
zone_src = nxm_field_name_to_ryu(v[:m.start(0)])
else:
zone_ofs_nbits = str_to_int(v)
elif k == 'alg':
alg = str_to_port[arg[len('alg='):]]
except Exception:
raise ryu.exception.OFPInvalidActionString(
action_str=action_str)
return dict(
NXActionCT={
'flags': flags,
'zone_src': zone_src,
'zone_ofs_nbits': zone_ofs_nbits,
'recirc_table': recirc_table,
'alg': alg,
'actions': ct_actions
})
def ct(cls, ofproto, action_str):
str_to_port = {'ftp': 21, 'tftp': 69}
flags = 0
zone_src = ""
zone_ofs_nbits = 0
recirc_table = nicira_ext.NX_CT_RECIRC_NONE
alg = 0
ct_actions = []
if len(action_str) > 2:
if (not action_str.startswith('ct(') or
action_str[-1] != ')'):
raise ryu.exception.OFPInvalidActionString(
action_str=action_str)
rest = tokenize_ofp_instruction_arg(action_str[len('ct('):-1])
else:
rest = []
for arg in rest:
if arg == 'commit':
flags |= nicira_ext.NX_CT_F_COMMIT
rest = rest[len('commit'):]
elif arg == 'force':
flags |= nicira_ext.NX_CT_F_FORCE
elif arg.startswith('exec('):
ct_actions = ofp_instruction_from_str(
ofproto, arg[len('exec('):-1])
else:
try:
k, v = arg.split('=', 1)
if k == 'table':
recirc_table = str_to_int(v)
elif k == 'zone':
m = re.search('\[(\d*)\.\.(\d*)\]', v)
if m:
zone_ofs_nbits = nicira_ext.ofs_nbits(
int(m.group(1)), int(m.group(2)))
zone_src = nxm_field_name_to_ryu(
v[:m.start(0)])
else:
zone_ofs_nbits = str_to_int(v)
elif k == 'alg':
alg = str_to_port[arg[len('alg='):]]
except Exception:
raise ryu.exception.OFPInvalidActionString(
action_str=action_str)
return dict(NXActionCT={'flags': flags,
'zone_src': zone_src,
'zone_ofs_nbits': zone_ofs_nbits,
'recirc_table': recirc_table,
'alg': alg,
'actions': ct_actions})
def to_actions(dp, acts):
inst = []
actions = []
ofp = dp.ofproto
parser = dp.ofproto_parser
for a in acts:
action = to_action(dp, a)
if action is not None:
actions.append(action)
else:
action_type = a.get('type')
if action_type == 'WRITE_ACTIONS':
write_actions = []
write_acts = a.get('actions')
for act in write_acts:
action = to_action(dp, act)
if action is not None:
write_actions.append(action)
else:
LOG.error('Unknown action type: %s', action_type)
if write_actions:
inst.append(
parser.OFPInstructionActions(ofp.OFPIT_WRITE_ACTIONS,
write_actions))
elif action_type == 'CLEAR_ACTIONS':
inst.append(
parser.OFPInstructionActions(ofp.OFPIT_CLEAR_ACTIONS, []))
elif action_type == 'GOTO_TABLE':
table_id = UTIL.ofp_table_from_user(a.get('table_id'))
inst.append(parser.OFPInstructionGotoTable(table_id))
elif action_type == 'WRITE_METADATA':
metadata = ofctl_utils.str_to_int(a.get('metadata'))
metadata_mask = (ofctl_utils.str_to_int(a['metadata_mask'])
if 'metadata_mask' in a
else parser.UINT64_MAX)
inst.append(
parser.OFPInstructionWriteMetadata(
metadata, metadata_mask))
elif action_type == 'METER':
meter_id = UTIL.ofp_meter_from_user(a.get('meter_id'))
inst.append(parser.OFPInstructionMeter(meter_id))
else:
LOG.error('Unknown action type: %s', action_type)
if actions:
inst.append(parser.OFPInstructionActions(ofp.OFPIT_APPLY_ACTIONS,
actions))
return inst
def set_field(cls, ofproto, action_str):
try:
assert action_str.startswith("set_field:")
value, key = action_str[len("set_field:"):].split("->", 1)
fieldarg = dict(field=ofp_ofctl_field_name_to_ryu(key))
m = value.find('/')
if m >= 0:
fieldarg['value'] = str_to_int(value[:m])
fieldarg['mask'] = str_to_int(value[m + 1:])
else:
fieldarg['value'] = str_to_int(value)
except Exception:
raise ryu.exception.OFPInvalidActionString(action_str=action_str)
return dict(OFPActionSetField={'field': {'OXMTlv': fieldarg}})
def to_actions(dp, acts):
inst = []
actions = []
ofp = dp.ofproto
parser = dp.ofproto_parser
for a in acts:
action = to_action(dp, a)
if action is not None:
actions.append(action)
else:
action_type = a.get('type')
if action_type == 'WRITE_ACTIONS':
write_actions = []
write_acts = a.get('actions')
for a in write_acts:
action = to_action(dp, a)
if action is not None:
write_actions.append(action)
else:
LOG.error('Unknown action type: %s', action_type)
if write_actions:
inst.append(
parser.OFPInstructionActions(ofp.OFPIT_WRITE_ACTIONS,
write_actions))
elif action_type == 'CLEAR_ACTIONS':
inst.append(parser.OFPInstructionActions(
ofp.OFPIT_CLEAR_ACTIONS, []))
elif action_type == 'GOTO_TABLE':
table_id = UTIL.ofp_table_from_user(a.get('table_id'))
inst.append(parser.OFPInstructionGotoTable(table_id))
elif action_type == 'WRITE_METADATA':
metadata = ofctl_utils.str_to_int(a.get('metadata'))
metadata_mask = (ofctl_utils.str_to_int(a['metadata_mask'])
if 'metadata_mask' in a
else parser.UINT64_MAX)
inst.append(
parser.OFPInstructionWriteMetadata(
metadata, metadata_mask))
elif action_type == 'METER':
meter_id = UTIL.ofp_meter_from_user(a.get('meter_id'))
inst.append(parser.OFPInstructionMeter(meter_id))
else:
LOG.error('Unknown action type: %s', action_type)
if actions:
inst.append(parser.OFPInstructionActions(ofp.OFPIT_APPLY_ACTIONS,
actions))
return inst
def set_field(cls, ofproto, action_str):
try:
assert action_str.startswith("set_field:")
value, key = action_str[len("set_field:"):].split("->", 1)
fieldarg = dict(field=ofp_ofctl_field_name_to_ryu(key))
m = value.find('/')
if m >= 0:
fieldarg['value'] = str_to_int(value[:m])
fieldarg['mask'] = str_to_int(value[m + 1:])
else:
fieldarg['value'] = str_to_int(value)
except Exception:
raise ryu.exception.OFPInvalidActionString(action_str=action_str)
return dict(OFPActionSetField={
'field': {'OXMTlv': fieldarg}})
def output(cls, ofproto, action_str):
if action_str == 'normal':
port = ofproto.OFPP_NORMAL
else:
assert action_str.startswith('output:')
port = str_to_int(action_str[len('output:'):])
return dict(OFPActionOutput={'port': port})
def output(cls, ofproto, action_str):
if action_str == 'normal':
port = ofproto.OFPP_NORMAL
else:
assert action_str.startswith('output:')
port = str_to_int(action_str[len('output:'):])
return dict(OFPActionOutput={'port': port})
def resubmit(cls, ofproto, action_str):
arg = action_str[len("resubmit"):]
kwargs = {}
try:
if arg[0] == ':':
kwargs['in_port'] = str_to_int(arg[1:])
elif arg[0] == '(' and arg[-1] == ')':
in_port, table_id = arg[1:-1].split(',')
if in_port:
kwargs['in_port'] = str_to_int(in_port)
if table_id:
kwargs['table_id'] = str_to_int(table_id)
else:
raise Exception
return dict(NXActionResubmitTable=kwargs)
except Exception:
raise ryu.exception.OFPInvalidActionString(action_str=action_str)
def resubmit(cls, ofproto, action_str):
arg = action_str[len("resubmit"):]
kwargs = {}
try:
if arg[0] == ':':
kwargs['in_port'] = str_to_int(arg[1:])
elif arg[0] == '(' and arg[-1] == ')':
in_port, table_id = arg[1:-1].split(',')
if in_port:
kwargs['in_port'] = str_to_int(in_port)
if table_id:
kwargs['table_id'] = str_to_int(table_id)
else:
raise Exception
return dict(NXActionResubmitTable=kwargs)
except Exception:
raise ryu.exception.OFPInvalidActionString(
action_str=action_str)
def add_mac_table(self, req, **kwargs):
simple_switch = self.simple_switch_app
hostname1 = str_to_int(kwargs['hostname1'])
hostname2 = str_to_int(kwargs['hostname2'])
route = Route.get(Route.hostname1 == hostname1)
if hostname1 == route.hostname1 and hostname2 == route.hostname2:
flow = Flow.filter(Flow.route_id == 1).execute()
for f in flow:
simple_switch.get_flow(f.in_port1, f.vlan1, f.out_port1,
f.in_port2, f.vlan2, f.out_port2)
for f in flow:
if f.in_port1 != 4 and route.flg != 0:
simple_switch.set2_flow(f.in_port1, f.vlan1, f.out_port1,
f.in_port2, f.vlan2, f.out_port2)
elif f.in_port1 != 3 and route.flg != 1:
simple_switch.set1_flow(f.in_port1, f.vlan1, f.out_port1)
simple_switch.flg_update(hostname1)
def to_instructions(dp, insts):
instructions = []
ofp = dp.ofproto
parser = dp.ofproto_parser
for i in insts:
inst_type = i.get('type')
if inst_type in ['APPLY_ACTIONS', 'WRITE_ACTIONS']:
dics = i.get('actions', [])
actions = _get_actions(dp, dics)
if actions:
if inst_type == 'APPLY_ACTIONS':
instructions.append(
parser.OFPInstructionActions(ofp.OFPIT_APPLY_ACTIONS,
actions))
else:
instructions.append(
parser.OFPInstructionActions(ofp.OFPIT_WRITE_ACTIONS,
actions))
elif inst_type == 'CLEAR_ACTIONS':
instructions.append(
parser.OFPInstructionActions(ofp.OFPIT_CLEAR_ACTIONS, []))
elif inst_type == 'GOTO_TABLE':
table_id = int(i.get('table_id'))
instructions.append(parser.OFPInstructionGotoTable(table_id))
elif inst_type == 'WRITE_METADATA':
metadata = ofctl_utils.str_to_int(i.get('metadata'))
metadata_mask = (ofctl_utils.str_to_int(i['metadata_mask'])
if 'metadata_mask' in i
else parser.UINT64_MAX)
instructions.append(
parser.OFPInstructionWriteMetadata(
metadata, metadata_mask))
elif inst_type == 'METER':
meter_id = int(i.get('meter_id'))
instructions.append(parser.OFPInstructionMeter(meter_id))
else:
LOG.error('Unknown instruction type: %s', inst_type)
return instructions
def conjunction(cls, ofproto, action_str):
try:
assert action_str.startswith('conjunction(')
assert action_str[-1] == ')'
args = action_str[len('conjunction('):-1].split(',')
assert len(args) == 2
id_ = str_to_int(args[0])
clauses = list(map(str_to_int, args[1].split('/')))
assert len(clauses) == 2
return dict(NXActionConjunction={
'clause': clauses[0] - 1,
'n_clauses': clauses[1],
'id': id_
})
except Exception:
raise ryu.exception.OFPInvalidActionString(action_str=action_str)
def conjunction(cls, ofproto, action_str):
try:
assert action_str.startswith('conjunction(')
assert action_str[-1] == ')'
args = action_str[len('conjunction('):-1].split(',')
assert len(args) == 2
id_ = str_to_int(args[0])
clauses = list(map(str_to_int, args[1].split('/')))
assert len(clauses) == 2
return dict(NXActionConjunction={
'clause': clauses[0] - 1,
'n_clauses': clauses[1],
'id': id_})
except Exception:
raise ryu.exception.OFPInvalidActionString(
action_str=action_str)
def goto_table(cls, ofproto, action_str):
assert action_str.startswith('goto_table:')
table_id = str_to_int(action_str[len('goto_table:'):])
return dict(OFPInstructionGotoTable={'table_id': table_id})
def goto_table(cls, ofproto, action_str):
assert action_str.startswith('goto_table:')
table_id = str_to_int(action_str[len('goto_table:'):])
return dict(OFPInstructionGotoTable={'table_id': table_id})
def _test_str_to_int(self, input_value, expected_value):
output_value = ofctl_utils.str_to_int(input_value)
self.assertEqual(expected_value, output_value)
def _test_str_to_int(self, input_value, expected_value):
output_value = ofctl_utils.str_to_int(input_value)
self.assertEqual(expected_value, output_value)
