def make_rx_tie_packet(header_info):
(direction, origin, prefixtype, tie_nr, seq_nr, lifetime,
_disposition) = header_info
if prefixtype == NODE:
rx_tie_packet = packet_common.make_node_tie_packet(name=MY_NAME,
level=MY_LEVEL,
direction=direction,
originator=origin,
tie_nr=tie_nr,
seq_nr=seq_nr,
lifetime=lifetime)
elif prefixtype == PREFIX:
rx_tie_packet = packet_common.make_prefix_tie_packet(
direction, origin, tie_nr, seq_nr, lifetime)
else:
assert False
return rx_tie_packet
def test_is_flood_allowed():
packet_common.add_missing_methods_to_thrift()
test_node = make_test_node()
# Node 66 is same level as me
node_66_tie_packet = packet_common.make_node_tie_packet(name="node66",
level=MY_LEVEL,
direction=SOUTH,
originator=66,
tie_nr=5,
seq_nr=7)
test_node.store_tie_packet(node_66_tie_packet, 300)
# Node 77 has higher level than me
node_77_tie_packet = packet_common.make_node_tie_packet(name="node77",
level=MY_LEVEL + 1,
direction=SOUTH,
originator=77,
tie_nr=3,
seq_nr=2)
test_node.store_tie_packet(node_77_tie_packet, 400)
# Node 88 has lower level than me
node_88_tie_packet = packet_common.make_node_tie_packet(name="node88",
level=MY_LEVEL - 1,
direction=SOUTH,
originator=88,
tie_nr=7,
seq_nr=3)
test_node.store_tie_packet(node_88_tie_packet, 400)
tx_tie_info_list = [
# pylint:disable=bad-whitespace
# Neighbor Neighbor I am Allowed Reason
# Direction Originator Type, Tie-Nr Seq-Nr Lifetime Direction System-ID ToF
(SOUTH, 66, NODE, 5, 7, 400, SOUTH, 22, False, True,
"Node S-TIE to S: originator level is same as from-node"),
(SOUTH, 77, NODE, 3, 2, 300, SOUTH, 18, False, False,
"Node S-TIE to S: originator level is not same as from-node"),
(SOUTH, 55, NODE, 8, 12, 500, NORTH, 17, False, False,
"Node S-TIE to N: could not determine originator level"),
(SOUTH, 77, NODE, 3, 3, 200, NORTH, 17, True, True,
"Node S-TIE to N: originator level is higher than from-node"),
(SOUTH, 88, NODE, 7, 3, 400, NORTH, 19, False, False,
"Node S-TIE to N: originator level is not higher than from-node"),
(SOUTH, 55, NODE, 8, 12, 550, EW, 19, True, False,
"Node S-TIE to EW: from-node is top of fabric"),
(SOUTH, 55, NODE, 8, 12, 550, EW, 19, False, True,
"Node S-TIE to EW: from-node is not top of fabric"),
(SOUTH, 55, NODE, 8, 12, 550, None, 19, False, False,
"Node S-TIE to ?: never flood"),
(SOUTH, MY_SYSTEM_ID, PREFIX, 4, 7, 200, SOUTH, 20, False, True,
"Non-node S-TIE to S: self-originated"),
(SOUTH, 55, PREFIX, 2, 4, 600, SOUTH, 20, True, False,
"Non-node S-TIE to S: not self-originated"),
(SOUTH, MY_SYSTEM_ID, PREFIX, 18, 903, 400, SOUTH, 33, True, True,
"Non-node S-TIE to S: self-originated"),
(SOUTH, 55, PREFIX, 2, 4, 600, NORTH, 55, False, True,
"Non-node S-TIE to N: to-node is originator of TIE"),
(SOUTH, 55, PREFIX, 2, 4, 600, NORTH, 33, False, False,
"Non-node S-TIE to N: to-node is not originator of TIE"),
(SOUTH, 55, PREFIX, 2, 4, 600, EW, 33, True, False,
"Non-node S-TIE to EW: this top of fabric"),
(SOUTH, MY_SYSTEM_ID, PREFIX, 18, 903, 400, EW, 33, False, True,
"Non-node S-TIE to EW: self-originated and not top of fabric"),
(SOUTH, 55, PREFIX, 2, 4, 600, EW, 33, False, False,
"Non-node S-TIE to EW: not self-originated"),
(SOUTH, 55, PREFIX, 2, 4, 600, None, 33, True, False,
"None-node S-TIE to ?: never flood"),
(NORTH, 55, NODE, 3, 3, 500, SOUTH, 20, False, False,
"N-TIE to S: never flood"),
(NORTH, 55, PREFIX, 2, 4, 500, SOUTH, 20, True, False,
"N-TIE to S: never flood"),
(NORTH, 55, NODE, 3, 3, 500, NORTH, 20, False, True,
"N-TIE to N: always flood"),
(NORTH, 55, PREFIX, 2, 4, 500, NORTH, 20, True, True,
"N-TIE to N: always flood"),
(NORTH, 55, NODE, 3, 3, 500, EW, 20, True, True,
"N-TIE to EW: top of fabric"),
(NORTH, 55, NODE, 3, 3, 500, EW, 20, False, False,
"N-TIE to EW: not top of fabric"),
(NORTH, 55, NODE, 3, 3, 500, None, 20, False, False,
"N-TIE to ?: never flood")
]
for tx_tie_info in tx_tie_info_list:
(direction, originator, tietype, tie_nr, seq_nr, lifetime,
neighbor_direction, neighbor_system_id, i_am_top_of_fabric,
expected_allowed, expected_reason) = tx_tie_info
tie_header = packet_common.make_tie_header_with_lifetime(
direction, originator, tietype, tie_nr, seq_nr, lifetime)
(allowed, reason) = test_node.is_flood_allowed(
tie_header=tie_header.header,
to_node_direction=neighbor_direction,
to_node_system_id=neighbor_system_id,
from_node_system_id=MY_SYSTEM_ID,
from_node_level=MY_LEVEL,
from_node_is_top_of_fabric=i_am_top_of_fabric)
assert allowed == expected_allowed, expected_reason
assert reason == expected_reason