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tests.py
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import unittest
import yaml
import yml_transform
import logging
logger = logging.getLogger(__name__)
logging.basicConfig(level=logging.DEBUG)
logging.disable(logging.DEBUG)
logging.disable(logging.INFO)
class YMLTests(unittest.TestCase):
SW_TEMPLATE = """
actions:
drop_action:
primitives:
- mark_to_drop
notify_action:
primitives:
- notify
l2_tagged_interface_action:
primitives:
- output
l2_untagged_interface_action:
primitives:
- pop_vlan
- output
l3_interface_action:
primitives:
- set_vid
- set_eth_src
- set_eth_dst
- dec_ttl
- output
l3_bridged_interface_action:
primitives:
- set_vid
- set_eth_src
- set_eth_dst
- dec_ttl
tables:
eth_dst:
matches:
hdr.ethernet.destination: exact
hdr.vlan.vid: exact
actions:
- drop_action
- l2_tagged_interface_action
- l2_untagged_interface_action
ipv4:
matches:
istd.ingress_port: exact
hdr.vlan.vid: exact
hdr.ipv4.source: exact
hdr.ipv4.destination: exact
actions:
- drop_action
- l3_interface_action
- l3_bridged_interface_action
ipv4_source:
matches:
istd.ingress_port: all_or_exact
istd.ethertype: all_or_exact
hdr.vlan.vid: all_or_exact
hdr.ipv4.source: ternary
actions:
- drop_action
ipv4_lpm:
matches:
istd.ingress_port: exact
hdr.vlan.vid: exact
hdr.ipv4.source: exact
hdr.ipv4.destination: exact
actions:
- drop_action
- l3_interface_action
- l3_bridged_interface_action
ipv6:
matches:
istd.ingress_port: exact
hdr.vlan.vid: exact
hdr.ipv6.source: exact
hdr.ipv6.destination: exact
actions:
- drop_action
- l3_interface_action
- l3_bridged_interface_action
ternary_l4:
matches:
istd.ip_proto: exact
hdr.tcp.source: ternary
hdr.tcp.destination: ternary
hdr.udp.source: ternary
hdr.udp.destination: ternary
actions:
- drop_action
ternary_port:
matches:
istd.ingress_port: ternary
actions:
- drop_action
ternary_ipv4:
matches:
hdr.ipv4.source: ternary
hdr.ipv4.destination: ternary
actions:
- drop_action
- l3_interface_action
ternary_ipv6:
matches:
hdr.ipv6.source: ternary
hdr.ipv6.destination: ternary
actions:
- drop_action
- l3_interface_action
tcp_filter:
matches:
hdr.tcp.source: all_or_exact
hdr.tcp.destination: all_or_exact
hdr.ipv6.source: ternary
hdr.ipv6.destination: ternary
actions:
- drop_action
- l2_tagged_interface_action
- l2_untagged_interface_action
udp_filter:
matches:
hdr.udp.source: all_or_exact
hdr.udp.destination: all_or_exact
hdr.ipv6.source: ternary
hdr.ipv6.destination: ternary
actions:
- drop_action
- l2_tagged_interface_action
- l2_untagged_interface_action
pipeline:
{module}
"""
HW_TEMPLATE = """
actions:
drop_action:
primitives:
- mark_to_drop
notify_action:
primitives:
- notify
output_action:
primitives:
- output
pop_vlan_action:
primitives:
- pop_vlan
l2_rewrite_action:
primitives:
- set_vid
- set_eth_src
- set_eth_dst
dec_ttl_action:
primitives:
- dec_ttl
goto_action:
primitives:
- goto
tables:
eth_dst:
matches:
hdr.vlan.vid: exact
hdr.ethernet.destination: exact
actions:
- drop_action
- pop_vlan_action
- output_action
eth_dst_recirc:
matches:
hdr.vlan.vid: exact
hdr.ethernet.destination: exact
istd.recirculation: exact
actions:
- drop_action
- pop_vlan_action
- output_action
ipv4:
matches:
istd.ingress_port: configured_exact
hdr.vlan.vid: exact
hdr.ipv4.source: configured_any
hdr.ipv4.destination: configured_any
actions:
- drop_action
- l2_rewrite_action
- dec_ttl_action
- output_action
ipv4_recirc:
matches:
istd.ingress_port: configured_exact
hdr.vlan.vid: exact
hdr.ipv4.source: configured_any
hdr.ipv4.destination: configured_any
istd.recirculation: configured_any
actions:
- drop_action
- l2_rewrite_action
- dec_ttl_action
- output_action
ipv4_source:
matches:
istd.ingress_port: all_or_exact
istd.ethertype: all_or_exact
hdr.vlan.vid: all_or_exact
hdr.ipv4.source: ternary
actions:
- drop_action
ipv4_missing_actions:
matches:
istd.ingress_port: exact
hdr.vlan.vid: exact
hdr.ipv4.source: configured_any
hdr.ipv4.destination: configured_any
actions:
- output_action
ethertype_ipv4:
matches:
istd.ingress_port: exact
istd.ethertype: exact
hdr.vlan.vid: exact
hdr.ipv4.source: configured_any
hdr.ipv4.destination: configured_any
actions:
- drop_action
- l2_rewrite_action
- dec_ttl_action
- output_action
ternary_ipv4:
matches:
hdr.ipv4.source: ternary
hdr.ipv4.destination: ternary
actions:
- drop_action
- l2_rewrite_action
- dec_ttl_action
- output_action
ternary_ipv6:
matches:
hdr.ipv6.source: ternary
hdr.ipv6.destination: ternary
actions:
- drop_action
- l2_rewrite_action
- dec_ttl_action
- output_action
ternary_5tuple:
matches:
istd.ip_proto: exact
hdr.ipv6.source: ternary
hdr.ipv6.destination: ternary
hdr.tcp.source: ternary
hdr.tcp.destination: ternary
hdr.udp.source: ternary
hdr.udp.destination: ternary
actions:
- drop_action
- l2_rewrite_action
- dec_ttl_action
- pop_vlan_action
- output_action
ternary_5tuple_recirc:
matches:
istd.recirculation: ternary
istd.ip_proto: all_or_exact
hdr.ipv6.source: ternary
hdr.ipv6.destination: ternary
hdr.tcp.source: ternary
hdr.tcp.destination: ternary
hdr.udp.source: ternary
hdr.udp.destination: ternary
actions:
- drop_action
- l2_rewrite_action
- dec_ttl_action
- pop_vlan_action
- output_action
ternary_5tuple_ethertype:
matches:
istd.ethertype: exact
istd.ip_proto: exact
hdr.ipv6.source: ternary
hdr.ipv6.destination: ternary
hdr.tcp.source: ternary
hdr.tcp.destination: ternary
hdr.udp.source: ternary
hdr.udp.destination: ternary
actions:
- drop_action
- l2_rewrite_action
- dec_ttl_action
- pop_vlan_action
- output_action
ternary_l4:
matches:
istd.ip_proto: exact
hdr.tcp.source: ternary
hdr.tcp.destination: ternary
hdr.udp.source: ternary
hdr.udp.destination: ternary
actions:
- drop_action
ternary_tcp:
matches:
hdr.tcp.source: ternary
hdr.tcp.destination: ternary
actions:
- drop_action
ternary_ipv6_tcp_no_ip_proto:
matches:
hdr.ipv6.source: ternary
hdr.ipv6.destination: ternary
hdr.tcp.source: ternary
hdr.tcp.destination: ternary
actions:
- drop_action
- pop_vlan_action
- output_action
ternary_udp:
matches:
hdr.udp.source: ternary
hdr.udp.destination: ternary
actions:
- drop_action
goto_table:
matches:
istd.ingress_port: configured_any
istd.ethertype: configured_any
istd.ip_proto: configured_any
hdr.ethernet.source: configured_any
hdr.ethernet.destination: configured_any
hdr.vlan.vid: configured_any
hdr.ipv6.source: configured_any
hdr.ipv6.destination: configured_any
hdr.ipv4.source: configured_any
hdr.ipv4.destination: configured_any
actions:
- goto_action
target_table:
matches:
istd.ingress_port: configured_any
istd.ethertype: configured_any
istd.ip_proto: configured_any
hdr.ethernet.source: configured_any
hdr.ethernet.destination: configured_any
hdr.vlan.vid: configured_any
hdr.ipv6.source: configured_any
hdr.ipv6.destination: configured_any
hdr.ipv4.source: configured_any
hdr.ipv4.destination: configured_any
actions:
- drop_action
- l2_rewrite_action
- dec_ttl_action
- pop_vlan_action
- output_action
- goto_action
target_table_2:
matches:
istd.ingress_port: configured_any
istd.ethertype: configured_any
istd.ip_proto: configured_any
hdr.ethernet.source: configured_any
hdr.ethernet.destination: configured_any
hdr.vlan.vid: configured_any
hdr.ipv6.source: configured_any
hdr.ipv6.destination: configured_any
hdr.ipv4.source: configured_any
hdr.ipv4.destination: configured_any
actions:
- drop_action
- l2_rewrite_action
- dec_ttl_action
- pop_vlan_action
- output_action
pipeline:
{module}
"""
def setup_pipelines(self, hw_modules, sw_modules):
self.hw_pipeline = yml_transform.Pipeline(
'hw_pipeline', yaml.safe_load(self.HW_TEMPLATE.format(module=hw_modules)))
self.sw_pipeline = yml_transform.Pipeline(
'sw_pipeline', yaml.safe_load(self.SW_TEMPLATE.format(module=sw_modules)))
def setup_module_map(self, hw_modules, sw_modules):
self.setup_pipelines(hw_modules, sw_modules)
self.module_map = yml_transform.ModuleMap(
self.hw_pipeline.action_modules[0], self.sw_pipeline.action_modules[0], None)
def tearDown(self):
logging.disable(logging.DEBUG)
logging.disable(logging.INFO)
def test_load_pipelines(self):
sw_modules = """
- test_module:
- type: table
table: ipv4"""
hw_modules = """
- test_module:
- type: table
table: ipv4"""
self.setup_pipelines(hw_modules, sw_modules)
def test_potential_maps(self):
sw_modules = """
- test_module:
- type: table
table: ipv4
- type: table
table: ipv6"""
hw_modules = """
- test_module:
- type: table
table: ipv4"""
self.setup_module_map(hw_modules, sw_modules)
self.assertIn('ipv4', self.module_map.get_potential_map('ipv4'))
self.assertFalse('ipv6' in self.module_map.get_potential_map('ipv4'))
def test_potential_map_missing_actions(self):
sw_modules = """
- test_module:
- type: table
table: ipv4"""
hw_modules = """
- test_module:
- type: table
table: ipv4_missing_actions"""
self.setup_module_map(hw_modules, sw_modules)
self.assertFalse('ipv4' in self.module_map.get_potential_map('ipv4'))
#def test_potential_ternary_concatenate_merge(self):
# sw_modules = """
#- test_module:
# - type: table
# table: ternary_l4
# iffalse:
# - type: table
# table: ternary_ipv4"""
# hw_modules = """
#- test_module:
# - type: table
# table: ipv4_missing_actions"""
# self.setup_module_map(hw_modules, sw_modules)
# self.assertIn(
# 'ternary_ipv4', self.module_map.get_mergeable_tables('ternary_l4'))
def test_potential_ternary_mutually_exclusive_merge(self):
sw_modules = """
- test_module:
- type: conditional
field: istd.ethertype
value: 0x86DD
iftrue:
- type: table
table: ternary_ipv6
iffalse:
- type: table
table: ternary_ipv4"""
hw_modules = """
- test_module:
- type: table
table: ipv4_missing_actions"""
self.setup_module_map(hw_modules, sw_modules)
self.assertIn(
'ternary_ipv4', self.module_map.get_mergeable_tables('ternary_ipv6'))
def test_potential_action_merge(self):
sw_modules = """
- test_module:
- type: table
table: ternary_l4
- type: table
table: ternary_port"""
hw_modules = """
- test_module:
- type: table
table: ipv4_missing_actions"""
self.setup_module_map(hw_modules, sw_modules)
self.assertIn(
'ternary_port', self.module_map.get_mergeable_tables('ternary_l4'))
def test_contradiction(self):
sw_modules = """
- test_module:
- type: table
table: ipv4
- type: table
table: ipv6"""
hw_modules = """
- test_module:
- type: table
table: ipv4_missing_actions"""
self.setup_module_map(hw_modules, sw_modules)
self.assertFalse(
'ipv4' in self.module_map.get_mergeable_tables('ipv6'))
self.assertFalse(self.module_map.get_complete_cmaps())
def test_trivial_map(self):
sw_modules = """
- test_module:
- type: table
table: ipv4"""
hw_modules = """
- test_module:
- type: table
table: ipv4"""
self.setup_module_map(hw_modules, sw_modules)
self.module_map.map()
self.assertTrue(self.module_map.get_complete_cmaps())
def test_trivial_conditional_map(self):
sw_modules = """
- test_module:
- type: conditional
field: istd.ethertype
value: 0x86DD
iftrue:
- type: table
table: ternary_ipv6
iffalse:
- type: table
table: ternary_ipv4"""
hw_modules = """
- test_module:
- type: conditional
field: istd.ethertype
value: 0x86DD
iftrue:
- type: table
table: ternary_ipv6
iffalse:
- type: table
table: ternary_ipv4"""
self.setup_module_map(hw_modules, sw_modules)
self.module_map.map()
self.assertTrue(self.module_map.get_complete_cmaps())
def test_trivial_table_condition_map(self):
sw_modules = """
- test_module:
- type: table
table: ipv4_source
iftrue:
- type: table
table: ternary_ipv4"""
hw_modules = """
- test_module:
- type: table
table: ipv4_source
iftrue:
- type: table
table: ternary_ipv4"""
self.setup_module_map(hw_modules, sw_modules)
self.module_map.map()
self.assertTrue(self.module_map.get_complete_cmaps())
def test_trivial_conditional_to_table_map(self):
sw_modules = """
- test_module:
- type: conditional
field: istd.ethertype
value: 0x86DD
iftrue:
- type: table
table: ternary_ipv4"""
hw_modules = """
- test_module:
- type: table
table: ipv4_source
iftrue:
- type: table
table: ternary_ipv4"""
self.setup_module_map(hw_modules, sw_modules)
self.module_map.map()
self.assertTrue(self.module_map.get_complete_cmaps())
def test_mutually_exclusive_merge(self):
sw_modules = """
- test_module:
- type: conditional
field: istd.ip_proto
value: 0x6
iftrue:
- type: table
table: tcp_filter
iffalse:
- type: conditional
field: istd.ip_proto
value: 0x11
iftrue:
- type: table
table: udp_filter"""
hw_modules = """
- test_module:
- type: table
table: ternary_5tuple"""
self.setup_module_map(hw_modules, sw_modules)
self.module_map.map()
self.assertIn('tcp_filter', self.module_map.get_potential_map('ternary_5tuple'))
self.assertIn('udp_filter', self.module_map.get_potential_map('ternary_5tuple'))
self.assertIn(
'tcp_filter', self.module_map.get_mergeable_tables('udp_filter'))
self.assertTrue(self.module_map.get_complete_cmaps())
def test_conditional_merge(self):
sw_modules = """
- test_module:
- type: conditional
field: istd.ip_proto
value: 0x6
iftrue:
- type: table
table: ternary_ipv6
"""
hw_modules = """
- test_module:
- type: table
table: ternary_5tuple"""
self.setup_module_map(hw_modules, sw_modules)
self.module_map.map()
self.assertTrue(self.module_map.get_complete_cmaps())
def test_concatenate_merge(self):
sw_modules = """
- test_module:
- type: conditional
field: istd.ip_proto
value: 0x6
iftrue:
- type: table
table: tcp_filter
iffalse:
- type: table
table: ternary_ipv6"""
hw_modules = """
- test_module:
- type: table
table: ternary_5tuple"""
self.setup_module_map(hw_modules, sw_modules)
self.module_map.map()
self.assertTrue(self.module_map.get_complete_cmaps())
def test_excess_match(self):
sw_modules = """
- test_module:
- type: table
table: ipv4"""
hw_modules = """
- test_module:
- type: table
table: ethertype_ipv4"""
self.setup_module_map(hw_modules, sw_modules)
self.module_map.map()
self.assertFalse(self.module_map.get_complete_cmaps())
def test_bad_table_condition(self):
sw_modules = """
- test_module:
- type: table
table: ipv4_source
iftrue:
- type: table
table: ternary_ipv4"""
hw_modules = """
- test_module:
- type: table
table: ternary_ipv4
iftrue:
- type: table
table: ipv4_source"""
self.setup_module_map(hw_modules, sw_modules)
self.module_map.map()
self.assertFalse(self.module_map.get_complete_cmaps())
def test_bad_conditional(self):
sw_modules = """
- test_module:
- type: conditional
field: istd.ethertype
value: 0x800
iftrue:
- type: table
table: ternary_ipv4
iffalse:
- type: table
table: ternary_ipv6"""
hw_modules = """
- test_module:
- type: conditional
field: istd.ethertype
value: 0x86DD
iftrue:
- type: table
table: ternary_ipv6
iffalse:
- type: table
table: ternary_ipv4"""
self.setup_module_map(hw_modules, sw_modules)
self.module_map.map()
self.assertFalse(self.module_map.get_complete_cmaps())
def test_excess_conditional(self):
sw_modules = """
- test_module:
- type: table
table: ternary_l4"""
hw_modules = """
- test_module:
- type: conditional
field: istd.ip_proto
value: 0x6
iftrue:
- type: table
table: ternary_ipv6
iffalse:
- type: table
table: ternary_ipv4"""
self.setup_module_map(hw_modules, sw_modules)
self.module_map.map()
self.assertFalse(self.module_map.get_complete_cmaps())
def test_excess_matches(self):
sw_modules = """
- test_module:
- type: table
table: ternary_ipv6
"""
hw_modules = """
- test_module:
- type: table
table: ternary_5tuple"""
self.setup_module_map(hw_modules, sw_modules)
self.module_map.map()
self.assertFalse(self.module_map.get_complete_cmaps())
def test_conditional_chain(self):
sw_modules = """
- test_module:
- type: conditional
field: istd.ethertype
value: 0x86DD
iftrue:
- type: conditional
field: istd.ip_proto
value: 0x6
iftrue:
- type: table
table: tcp_filter"""
hw_modules = """
- test_module:
- type: conditional
field: istd.ip_proto
value: 0x6
iftrue:
- type: conditional
field: istd.ethertype
value: 0x86DD
iftrue:
- type: table
table: ternary_ipv6_tcp_no_ip_proto"""
self.setup_module_map(hw_modules, sw_modules)
self.module_map.map()
self.assertTrue(self.module_map.get_complete_cmaps())
def test_two_children_trivial(self):
sw_modules = """
- test_module:
- type: conditional
field: istd.ethertype
value: 0x86DD
iftrue:
- type: table
table: ternary_ipv6
- type: table
table: ternary_l4"""
hw_modules = """
- test_module:
- type: conditional
field: istd.ethertype
value: 0x86DD
iftrue:
- type: table
table: ternary_ipv6
- type: table
table: ternary_l4"""
self.setup_module_map(hw_modules, sw_modules)
self.module_map.map()
self.assertTrue(self.module_map.get_complete_cmaps())
def test_two_children_separated(self):
sw_modules = """
- test_module:
- type: conditional
field: istd.ethertype
value: 0x86DD
iftrue:
- type: table
table: ternary_ipv6
- type: table
table: ternary_l4"""
hw_modules = """
- test_module:
- type: conditional
field: istd.ethertype
value: 0x86DD
iftrue:
- type: table
table: ternary_ipv6
- type: table
table: ternary_5tuple_ethertype"""
self.setup_module_map(hw_modules, sw_modules)
self.module_map.map()
self.assertTrue(self.module_map.get_complete_cmaps())
def test_multiple_modules(self):
sw_modules = """
- test_module:
- type: table
table: ternary_l4
- type: conditional
field: istd.ethertype
value: 0x86DD
iftrue:
- type: table
table: ternary_ipv6"""
hw_modules = """
- test_module_1:
- type: table
table: ternary_l4
- test_module_2:
- type: conditional
field: istd.ethertype
value: 0x86DD
iftrue:
- type: table
table: ternary_ipv6"""
self.setup_pipelines(hw_modules, sw_modules)
self.assertTrue(self.hw_pipeline.map(self.sw_pipeline))
def test_multiple_modules_redundant_module(self):
sw_modules = """
- test_module:
- type: table
table: ternary_l4
- type: conditional
field: istd.ethertype
value: 0x86DD
iftrue:
- type: table
table: ternary_ipv6"""
hw_modules = """
- test_module_1:
- type: table
table: ternary_ipv4
- test_module_2:
- type: table
table: ternary_l4
- type: conditional
field: istd.ethertype
value: 0x86DD
iftrue:
- type: table
table: ternary_ipv6"""
self.setup_pipelines(hw_modules, sw_modules)
self.assertTrue(self.hw_pipeline.map(self.sw_pipeline))
def test_multiple_modules_bad_path(self):
sw_modules = """
- test_module:
- type: table
table: ternary_l4
iftrue:
- type: conditional
field: istd.ethertype
value: 0x86DD
iftrue:
- type: table
table: ternary_ipv6"""
hw_modules = """
- test_module_1:
- type: table
table: ternary_l4
- test_module_2:
- type: conditional
field: istd.ethertype
value: 0x86DD
iftrue:
- type: table
table: ternary_ipv6"""
self.setup_pipelines(hw_modules, sw_modules)
self.assertFalse(self.hw_pipeline.map(self.sw_pipeline))
def test_multiple_software_modules(self):
sw_modules = """
- test_module_1:
- type: table
table: ternary_l4
- test_module_2:
- type: conditional
field: istd.ethertype
value: 0x86DD
iftrue:
- type: table
table: ternary_ipv6"""
hw_modules = """
- test_module_1:
- type: table
table: ternary_l4
- test_module_2:
- type: conditional
field: istd.ethertype
value: 0x86DD
iftrue:
- type: table
table: ternary_ipv6"""
self.setup_pipelines(hw_modules, sw_modules)
self.assertTrue(self.hw_pipeline.map(self.sw_pipeline))
def test_trivial_goto(self):
sw_modules = """
- test_module:
- type: conditional
field: istd.ethertype
value: 0x86DD
iftrue:
- type: table
table: ternary_ipv4"""
hw_modules = """
- test_module_1:
- type: table
table: goto_table
- test_module_2:
- type: target
name: target_table_target
iftrue:
- type: table
table: target_table
"""
self.setup_pipelines(hw_modules, sw_modules)
self.assertTrue(self.hw_pipeline.map(self.sw_pipeline))
def test_goto_iffalse(self):
logging.disable(logging.NOTSET)
sw_modules = """
- test_module:
- type: conditional
field: istd.ethertype
value: 0x86DD
iftrue:
- type: table
table: ternary_ipv6
iffalse:
- type: table
table: ternary_ipv4
"""
hw_modules = """
- test_module_1:
- type: table
table: goto_table
- test_module_2:
- type: target
name: target_table_target
iftrue:
- type: table
table: target_table
- test_module_3:
- type: target
name: target_table_2_target
iftrue:
- type: table
table: target_table_2
"""
self.setup_pipelines(hw_modules, sw_modules)
self.assertTrue(self.hw_pipeline.map(self.sw_pipeline))
def test_complex_goto(self):
sw_modules = """
- test_module:
- type: conditional
field: istd.ethertype
value: 0x86DD
iftrue:
- type: table
table: ternary_ipv4
- type: table
table: ternary_port
"""
hw_modules = """
- test_module_1:
- type: table
table: goto_table
- test_module_2:
- type: target