tests/toranj/test-010-on-mesh-prefix-config-gateway.py

#!/usr/bin/env python
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import time
import wpan
from wpan import verify

#-----------------------------------------------------------------------------------------------------------------------
# Test description:
#
# Adding on-mesh prefix and `config-gateway` command
#
#  - Verifies adding an on-mesh prefix using `config-gateway`, `add-prefix` commands.
#  - Verifies prefixes with different flags/priorities added on routers and/or end-devices.
#  - Verifies `wpantund` adding SLAAC based IPv6 address based on prefix.
#  - Verifies `wpantund` retaining user-added prefixes and adding them back after an NCP reset.
#

test_name = __file__[:-3] if __file__.endswith('.py') else __file__
print '-' * 120
print 'Starting \'{}\''.format(test_name)

#-----------------------------------------------------------------------------------------------------------------------
# Utility functions

def verify_address(node_list, prefix):
    """
    This function verifies that all nodes in the `node_list` contain an IPv6 address with the given `prefix`.
    """
    for node in node_list:
        all_addrs = wpan.parse_list(node.get(wpan.WPAN_IP6_ALL_ADDRESSES))
        verify(any([addr.startswith(prefix[:-1]) for addr in all_addrs]))

def verify_prefix(node_list, prefix, prefix_len=64, stable=True, priority='med', on_mesh=False, slaac=False, dhcp=False,
        configure=False, default_route=False, preferred=True):
    """
    This function verifies that the `prefix` is present on all the nodes in the `node_list`.
    """
    for node in node_list:
        prefixes = wpan.parse_on_mesh_prefix_result(node.get(wpan.WPAN_THREAD_ON_MESH_PREFIXES))
        for p in prefixes:
            if p.prefix == prefix:
                verify(int(p.prefix_len) == prefix_len)
                verify(p.is_stable() == stable)
                verify(p.is_on_mesh() == on_mesh)
                verify(p.is_def_route() == default_route)
                verify(p.is_slaac() == slaac)
                verify(p.is_dhcp() == dhcp)
                verify(p.is_config() == configure)
                verify(p.is_preferred() == preferred)
                verify(p.priority == priority)
                break
        else:
            print "Did not find prefix {} on node {}".format(prefix, node)
            exit(1)


#-----------------------------------------------------------------------------------------------------------------------
# Creating `wpan.Nodes` instances

speedup = 4
wpan.Node.set_time_speedup_factor(speedup)

r1 = wpan.Node()
r2 = wpan.Node()
sc1 = wpan.Node()
sc2 = wpan.Node()

all_nodes = [r1, r2, sc1, sc2]

#-----------------------------------------------------------------------------------------------------------------------
# Init all nodes

wpan.Node.init_all_nodes()

#-----------------------------------------------------------------------------------------------------------------------
# Build network topology

r1.whitelist_node(r2)
r2.whitelist_node(r1)

r1.whitelist_node(sc1)
r2.whitelist_node(sc2)

r1.form('config-gtway')
r2.join_node(r1, node_type=wpan.JOIN_TYPE_ROUTER)
sc1.join_node(r1, node_type=wpan.JOIN_TYPE_SLEEPY_END_DEVICE)
sc2.join_node(r2, node_type=wpan.JOIN_TYPE_SLEEPY_END_DEVICE)

sc1.set(wpan.WPAN_POLL_INTERVAL, '200')
sc2.set(wpan.WPAN_POLL_INTERVAL, '200')

#-----------------------------------------------------------------------------------------------------------------------
# Test implementation

prefix1 = 'fd00:abba:cafe::'
prefix2 = 'fd00:1234::'
prefix3 = 'fd00:deed::'
prefix4 = 'fd00:abcd::'

# Add on-mesh prefix1 on router r1
r1.config_gateway(prefix1)
time.sleep(0.5)

# Verify that the prefix1 and its corresponding address are present on all nodes
verify_prefix(all_nodes, prefix1, stable=True, on_mesh=True, slaac=True)
verify_address(all_nodes, prefix1)

# Now add prefix2 with priority `high` on router r2 and check all nodes for the new prefix/address
r2.config_gateway(prefix2, default_route=True, priority='1')
time.sleep(0.5)
verify_prefix(all_nodes, prefix2, stable=True, on_mesh=True, slaac=True, default_route=True, priority='high')
verify_address(all_nodes, prefix2)

# Add prefix3 on sleepy end-device and check for it on all nodes
sc1.config_gateway(prefix3, priority='-1')
time.sleep(0.5)
verify_prefix(all_nodes, prefix3, stable=True, on_mesh=True, slaac=True, priority='low')
verify_address(all_nodes, prefix3)

# Verify that prefix1 is retained by `wpantund` and pushed to NCP after a reset
r1.reset()

# Wait for r1 to recover after reset
start_time = time.time()
wait_time = 5
while not r1.is_associated():
    if time.time() - start_time > wait_time:
        print 'Took too long for node to recover after reset ({}>{} sec)'.format(time.time() - start_time, wait_time)
        exit(1)
    time.sleep(0.25)

# Wait for on-mesh prefix to be updated
time.sleep(0.5)
verify_prefix(all_nodes, prefix1, stable=True, on_mesh=True, slaac=True)
verify_address(all_nodes, prefix1)

#- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# Test `add-prefix` and `remove-prefix`

r1.add_prefix(prefix4, 48, priority="1", stable=False, on_mesh=True, slaac=False, dhcp=True, configure=False,
    default_route=True, preferred=False)
verify_prefix([r1], prefix4, 48, priority="high", stable=False, on_mesh=True, slaac=False, dhcp=True, configure=False,
    default_route=True, preferred=False)

# Remove prefix and verify that it is removed from list
r1.remove_prefix(prefix4, 48)
time.sleep(0.5)
verify(r1.get(wpan.WPAN_THREAD_ON_MESH_PREFIXES).find(prefix4) < 0)

r1.add_prefix(prefix4, 48, priority="-1", stable=True, on_mesh=False, slaac=True, dhcp=False, configure=True,
    default_route=False, preferred=True)
verify_prefix([r1], prefix4, 48, priority="low", stable=True, on_mesh=False, slaac=True, dhcp=False, configure=True,
    default_route=False, preferred=True)


#-----------------------------------------------------------------------------------------------------------------------
# Test finished

wpan.Node.finalize_all_nodes()

print '\'{}\' passed.'.format(test_name)