def restartRouter(self):
# Starts actual daemons without init (ie restart)
# cd to per node directory
self.cmd('cd {}/{}'.format(self.logdir, self.name))
self.cmd('umask 000')
#Re-enable to allow for report per run
self.reportCores = True
if self.version == None:
self.version = self.cmd(os.path.join(self.daemondir, 'bgpd')+' -v').split()[2]
logger.info('{}: running version: {}'.format(self.name,self.version))
# Start Zebra first
if self.daemons['zebra'] == 1:
zebra_path = os.path.join(self.daemondir, 'zebra')
zebra_option = self.daemons_options['zebra']
self.cmd('{0} {1} > zebra.out 2> zebra.err &'.format(
zebra_path, zebra_option, self.logdir, self.name
))
self.waitOutput()
logger.debug('{}: {} zebra started'.format(self, self.routertype))
sleep(1, '{}: waiting for zebra to start'.format(self.name))
# Start staticd next if required
if self.daemons['staticd'] == 1:
staticd_path = os.path.join(self.daemondir, 'staticd')
staticd_option = self.daemons_options['staticd']
self.cmd('{0} {1} > staticd.out 2> staticd.err &'.format(
staticd_path, staticd_option, self.logdir, self.name
))
self.waitOutput()
logger.debug('{}: {} staticd started'.format(self, self.routertype))
# Fix Link-Local Addresses
# Somehow (on Mininet only), Zebra removes the IPv6 Link-Local addresses on start. Fix this
self.cmd('for i in `ls /sys/class/net/` ; do mac=`cat /sys/class/net/$i/address`; IFS=\':\'; set $mac; unset IFS; ip address add dev $i scope link fe80::$(printf %02x $((0x$1 ^ 2)))$2:${3}ff:fe$4:$5$6/64; done')
# Now start all the other daemons
for daemon in self.daemons:
# Skip disabled daemons and zebra
if self.daemons[daemon] == 0 or daemon == 'zebra' or daemon == 'staticd':
continue
daemon_path = os.path.join(self.daemondir, daemon)
self.cmd('{0} {1} > {2}.out 2> {2}.err &'.format(
daemon_path, self.daemons_options.get(daemon, ''), daemon
))
self.waitOutput()
logger.debug('{}: {} {} started'.format(self, self.routertype, daemon))
def pytest_runtest_makereport(item, call):
"Log all assert messages to default logger with error level"
# Nothing happened
if call.when == "call":
pause = topotest_extra_config["pause"]
else:
pause = False
title = "unset"
if call.excinfo is None:
error = False
else:
parent = item.parent
modname = parent.module.__name__
# Treat skips as non errors, don't pause after
if call.excinfo.typename == "Skipped":
pause = False
error = False
logger.info('test skipped at "{}/{}": {}'.format(
modname, item.name, call.excinfo.value))
else:
error = True
# Handle assert failures
parent._previousfailed = item # pylint: disable=W0212
logger.error('test failed at "{}/{}": {}'.format(
modname, item.name, call.excinfo.value))
title = "{}/{}".format(modname, item.name)
# We want to pause, if requested, on any error not just test cases
# (e.g., call.when == "setup")
if not pause:
pause = (topotest_extra_config["pause_on_error"]
or topotest_extra_config["pause"])
# (topogen) Set topology error to avoid advancing in the test.
tgen = get_topogen()
if tgen is not None:
# This will cause topogen to report error on `routers_have_failure`.
tgen.set_error("{}/{}".format(modname, item.name))
commander = Commander("pytest")
isatty = sys.stdout.isatty()
error_cmd = None
if error and topotest_extra_config["vtysh_on_error"]:
error_cmd = commander.get_exec_path(["vtysh"])
elif error and topotest_extra_config["shell_on_error"]:
error_cmd = os.getenv("SHELL", commander.get_exec_path(["bash"]))
if error_cmd:
is_tmux = bool(os.getenv("TMUX", ""))
is_screen = not is_tmux and bool(os.getenv("STY", ""))
is_xterm = not is_tmux and not is_screen and bool(
os.getenv("DISPLAY", ""))
channel = None
win_info = None
wait_for_channels = []
wait_for_procs = []
# Really would like something better than using this global here.
# Not all tests use topogen though so get_topogen() won't work.
for node in Mininet.g_mnet_inst.hosts.values():
pause = True
if is_tmux:
channel = ("{}-{}".format(os.getpid(), Commander.tmux_wait_gen)
if not isatty else None)
Commander.tmux_wait_gen += 1
wait_for_channels.append(channel)
pane_info = node.run_in_window(
error_cmd,
new_window=win_info is None,
background=True,
title="{} ({})".format(title, node.name),
name=title,
tmux_target=win_info,
wait_for=channel,
)
if is_tmux:
if win_info is None:
win_info = pane_info
elif is_xterm:
assert isinstance(pane_info, subprocess.Popen)
wait_for_procs.append(pane_info)
# Now wait on any channels
for channel in wait_for_channels:
logger.debug("Waiting on TMUX channel %s", channel)
commander.cmd_raises(
[commander.get_exec_path("tmux"), "wait", channel])
for p in wait_for_procs:
logger.debug("Waiting on TMUX xterm process %s", p)
o, e = p.communicate()
if p.wait():
logger.warning("xterm proc failed: %s:", proc_error(p, o, e))
if error and topotest_extra_config["cli_on_error"]:
# Really would like something better than using this global here.
# Not all tests use topogen though so get_topogen() won't work.
if Mininet.g_mnet_inst:
cli(Mininet.g_mnet_inst, title=title, background=False)
else:
logger.error("Could not launch CLI b/c no mininet exists yet")
while pause and isatty:
try:
user = raw_input(
'PAUSED, "cli" for CLI, "pdb" to debug, "Enter" to continue: ')
except NameError:
user = input(
'PAUSED, "cli" for CLI, "pdb" to debug, "Enter" to continue: ')
user = user.strip()
if user == "cli":
cli(Mininet.g_mnet_inst)
elif user == "pdb":
pdb.set_trace()
elif user:
print('Unrecognized input: "%s"' % user)
else:
break
def create_route_maps(tgen, input_dict, build=False):
"""
Create route-map on the devices as per the arguments passed
Parameters
----------
* `tgen` : Topogen object
* `input_dict` : Input dict data, required when configuring from testcase
* `build` : Only for initial setup phase this is set as True.
Usage
-----
# route_maps: key, value pair for route-map name and its attribute
# rmap_match_prefix_list_1: user given name for route-map
# action: PERMIT/DENY
# match: key,value pair for match criteria. prefix_list, community-list,
large-community-list or tag. Only one option at a time.
# prefix_list: name of prefix list
# large-community-list: name of large community list
# community-ist: name of community list
# tag: tag id for static routes
# set: key, value pair for modifying route attributes
# localpref: preference value for the network
# med: metric value advertised for AS
# aspath: set AS path value
# weight: weight for the route
# community: standard community value to be attached
# large_community: large community value to be attached
# community_additive: if set to "additive", adds community/large-community
value to the existing values of the network prefix
Example:
--------
input_dict = {
"r1": {
"route_maps": {
"rmap_match_prefix_list_1": [
{
"action": "PERMIT",
"match": {
"ipv4": {
"prefix_list": "pf_list_1"
}
"ipv6": {
"prefix_list": "pf_list_1"
}
"large-community-list": "{
"id": "community_1",
"exact_match": True
}
"community": {
"id": "community_2",
"exact_match": True
}
"tag": "tag_id"
},
"set": {
"localpref": 150,
"med": 30,
"aspath": {
"num": 20000,
"action": "prepend",
},
"weight": 500,
"community": {
"num": "1:2 2:3",
"action": additive
}
"large_community": {
"num": "1:2:3 4:5;6",
"action": additive
},
}
}
]
}
}
}
Returns
-------
errormsg(str) or True
"""
result = False
logger.debug("Entering lib API: create_route_maps()")
try:
for router in input_dict.keys():
if "route_maps" not in input_dict[router]:
errormsg = "route_maps not present in input_dict"
logger.info(errormsg)
continue
rmap_data = []
for rmap_name, rmap_value in \
input_dict[router]["route_maps"].iteritems():
for rmap_dict in rmap_value:
del_action = rmap_dict.setdefault("delete", False)
if del_action:
rmap_data.append("no route-map {}".format(rmap_name))
continue
if "action" not in rmap_dict:
errormsg = "action not present in input_dict"
logger.error(errormsg)
return False
rmap_action = rmap_dict.setdefault("action", "deny")
seq_id = rmap_dict.setdefault("seq_id", None)
if seq_id is None:
seq_id = get_seq_id("route_maps", router, rmap_name)
else:
set_seq_id("route_maps", router, seq_id, rmap_name)
rmap_data.append("route-map {} {} {}".format(
rmap_name, rmap_action, seq_id))
# Verifying if SET criteria is defined
if "set" in rmap_dict:
set_data = rmap_dict["set"]
local_preference = set_data.setdefault(
"localpref", None)
metric = set_data.setdefault("med", None)
as_path = set_data.setdefault("aspath", {})
weight = set_data.setdefault("weight", None)
community = set_data.setdefault("community", {})
large_community = set_data.setdefault(
"large_community", {})
set_action = set_data.setdefault("set_action", None)
# Local Preference
if local_preference:
rmap_data.append("set local-preference {}".format(
local_preference))
# Metric
if metric:
rmap_data.append("set metric {} \n".format(metric))
# AS Path Prepend
if as_path:
as_num = as_path.setdefault("as_num", None)
as_action = as_path.setdefault("as_action", None)
if as_action and as_num:
rmap_data.append("set as-path {} {}".format(
as_action, as_num))
# Community
if community:
num = community.setdefault("num", None)
comm_action = community.setdefault("action", None)
if num:
cmd = "set community {}".format(num)
if comm_action:
cmd = "{} {}".format(cmd, comm_action)
rmap_data.append(cmd)
else:
logger.error("In community, AS Num not"
" provided")
return False
if large_community:
num = large_community.setdefault("num", None)
comm_action = large_community.setdefault(
"action", None)
if num:
cmd = "set large-community {}".format(num)
if comm_action:
cmd = "{} {}".format(cmd, comm_action)
rmap_data.append(cmd)
else:
logger.errror("In large_community, AS Num not"
" provided")
return False
# Weight
if weight:
rmap_data.append("set weight {} \n".format(weight))
# Adding MATCH and SET sequence to RMAP if defined
if "match" in rmap_dict:
match_data = rmap_dict["match"]
ipv4_data = match_data.setdefault("ipv4", {})
ipv6_data = match_data.setdefault("ipv6", {})
community = match_data.setdefault("community-list", {})
large_community = match_data.setdefault(
"large-community-list", {})
tag = match_data.setdefault("tag", None)
if ipv4_data:
prefix_name = ipv4_data.setdefault(
"prefix_lists", None)
if prefix_name:
rmap_data.append("match ip address prefix-list"
" {}".format(prefix_name))
if ipv6_data:
prefix_name = ipv6_data.setdefault(
"prefix_lists", None)
if prefix_name:
rmap_data.append(
"match ipv6 address "
"prefix-list {}".format(prefix_name))
if tag:
rmap_data.append("match tag {}".format(tag))
if community:
if "id" not in community:
logger.error("'id' is mandatory for "
"community-list in match"
" criteria")
return False
cmd = "match community {}".format(community["id"])
exact_match = community.setdefault(
"exact_match", False)
if exact_match:
cmd = "{} exact-match".format(cmd)
rmap_data.append(cmd)
if large_community:
if "id" not in large_community:
logger.error("'num' is mandatory for "
"large-community-list in match "
"criteria")
return False
cmd = "match large-community {}".format(
large_community["id"])
exact_match = large_community.setdefault(
"exact_match", False)
if exact_match:
cmd = "{} exact-match".format(cmd)
rmap_data.append(cmd)
result = create_common_configuration(tgen,
router,
rmap_data,
"route_maps",
build=build)
except InvalidCLIError:
# Traceback
errormsg = traceback.format_exc()
logger.error(errormsg)
return errormsg
logger.debug("Exiting lib API: create_prefix_lists()")
return result
def create_prefix_lists(tgen, input_dict, build=False):
"""
Create ip prefix lists as per the config provided in input
JSON or input_dict
Parameters
----------
* `tgen` : Topogen object
* `input_dict` : Input dict data, required when configuring from testcase
* `build` : Only for initial setup phase this is set as True.
Usage
-----
# pf_lists_1: name of prefix-list, user defined
# seqid: prefix-list seqid, auto-generated if not given by user
# network: criteria for applying prefix-list
# action: permit/deny
# le: less than or equal number of bits
# ge: greater than or equal number of bits
Example
-------
input_dict = {
"r1": {
"prefix_lists":{
"ipv4": {
"pf_list_1": [
{
"seqid": 10,
"network": "any",
"action": "permit",
"le": "32",
"ge": "30",
"delete": True
}
]
}
}
}
}
Returns
-------
errormsg or True
"""
logger.debug("Entering lib API: create_prefix_lists()")
result = False
try:
for router in input_dict.keys():
if "prefix_lists" not in input_dict[router]:
errormsg = "prefix_lists not present in input_dict"
logger.info(errormsg)
continue
config_data = []
prefix_lists = input_dict[router]["prefix_lists"]
for addr_type, prefix_data in prefix_lists.iteritems():
if not check_address_types(addr_type):
continue
for prefix_name, prefix_list in prefix_data.iteritems():
for prefix_dict in prefix_list:
if "action" not in prefix_dict or \
"network" not in prefix_dict:
errormsg = "'action' or network' missing in" \
" input_dict"
return errormsg
network_addr = prefix_dict["network"]
action = prefix_dict["action"]
le = prefix_dict.setdefault("le", None)
ge = prefix_dict.setdefault("ge", None)
seqid = prefix_dict.setdefault("seqid", None)
del_action = prefix_dict.setdefault("delete", False)
if seqid is None:
seqid = get_seq_id("prefix_lists", router,
prefix_name)
else:
set_seq_id("prefix_lists", router, seqid,
prefix_name)
if addr_type == "ipv4":
protocol = "ip"
else:
protocol = "ipv6"
cmd = "{} prefix-list {} seq {} {} {}".format(
protocol, prefix_name, seqid, action, network_addr)
if le:
cmd = "{} le {}".format(cmd, le)
if ge:
cmd = "{} ge {}".format(cmd, ge)
if del_action:
cmd = "no {}".format(cmd)
config_data.append(cmd)
result = create_common_configuration(tgen,
router,
config_data,
"prefix_list",
build=build)
except InvalidCLIError:
# Traceback
errormsg = traceback.format_exc()
logger.error(errormsg)
return errormsg
logger.debug("Exiting lib API: create_prefix_lists()")
return result
def create_static_routes(tgen, input_dict, build=False):
"""
Create static routes for given router as defined in input_dict
Parameters
----------
* `tgen` : Topogen object
* `input_dict` : Input dict data, required when configuring from testcase
* `build` : Only for initial setup phase this is set as True.
Usage
-----
input_dict should be in the format below:
# static_routes: list of all routes
# network: network address
# no_of_ip: number of next-hop address that will be configured
# admin_distance: admin distance for route/routes.
# next_hop: starting next-hop address
# tag: tag id for static routes
# delete: True if config to be removed. Default False.
Example:
"routers": {
"r1": {
"static_routes": [
{
"network": "100.0.20.1/32",
"no_of_ip": 9,
"admin_distance": 100,
"next_hop": "10.0.0.1",
"tag": 4001
"delete": true
}
]
}
}
Returns
-------
errormsg(str) or True
"""
result = False
logger.debug("Entering lib API: create_static_routes()")
try:
for router in input_dict.keys():
if "static_routes" not in input_dict[router]:
errormsg = "static_routes not present in input_dict"
logger.info(errormsg)
continue
static_routes_list = []
static_routes = input_dict[router]["static_routes"]
for static_route in static_routes:
del_action = static_route.setdefault("delete", False)
# No of IPs
no_of_ip = static_route.setdefault("no_of_ip", 1)
admin_distance = static_route.setdefault(
"admin_distance", None)
tag = static_route.setdefault("tag", None)
if "next_hop" not in static_route or \
"network" not in static_route:
errormsg = "'next_hop' or 'network' missing in" \
" input_dict"
return errormsg
next_hop = static_route["next_hop"]
network = static_route["network"]
ip_list = generate_ips([network], no_of_ip)
for ip in ip_list:
addr_type = validate_ip_address(ip)
if addr_type == "ipv4":
cmd = "ip route {} {}".format(ip, next_hop)
else:
cmd = "ipv6 route {} {}".format(ip, next_hop)
if tag:
cmd = "{} {}".format(cmd, str(tag))
if admin_distance:
cmd = "{} {}".format(cmd, admin_distance)
if del_action:
cmd = "no {}".format(cmd)
static_routes_list.append(cmd)
result = create_common_configuration(tgen,
router,
static_routes_list,
"static_route",
build=build)
except InvalidCLIError:
# Traceback
errormsg = traceback.format_exc()
logger.error(errormsg)
return errormsg
logger.debug("Exiting lib API: create_static_routes()")
return result
def reset_config_on_routers(tgen, routerName=None):
"""
Resets configuration on routers to the snapshot created using input JSON
file. It replaces existing router configuration with FRRCFG_BKUP_FILE
Parameters
----------
* `tgen` : Topogen object
* `routerName` : router config is to be reset
"""
logger.debug("Entering API: reset_config_on_routers")
router_list = tgen.routers()
for rname, router in router_list.iteritems():
if routerName and routerName != rname:
continue
cfg = router.run("vtysh -c 'show running'")
fname = "{}/{}/frr.sav".format(TMPDIR, rname)
dname = "{}/{}/delta.conf".format(TMPDIR, rname)
f = open(fname, "w")
for line in cfg.split("\n"):
line = line.strip()
if (line == "Building configuration..."
or line == "Current configuration:" or not line):
continue
f.write(line)
f.write("\n")
f.close()
command = "/usr/lib/frr/frr-reload.py --input {}/{}/frr.sav" \
" --test {}/{}/frr_json_initial.conf > {}". \
format(TMPDIR, rname, TMPDIR, rname, dname)
result = call(command, shell=True, stderr=SUB_STDOUT)
# Assert if command fail
if result > 0:
errormsg = ("Command:{} is failed due to non-zero exit"
" code".format(command))
return errormsg
f = open(dname, "r")
delta = StringIO.StringIO()
delta.write("configure terminal\n")
t_delta = f.read()
for line in t_delta.split("\n"):
line = line.strip()
if (line == "Lines To Delete" or line == "==============="
or line == "Lines To Add" or line == "============"
or not line):
continue
delta.write(line)
delta.write("\n")
delta.write("end\n")
output = router.vtysh_multicmd(delta.getvalue(), pretty_output=False)
logger.info("New configuration for router {}:".format(rname))
delta.close()
delta = StringIO.StringIO()
cfg = router.run("vtysh -c 'show running'")
for line in cfg.split("\n"):
line = line.strip()
delta.write(line)
delta.write("\n")
# Router current configuration to log file or console if
# "show_router_config" is defined in "pytest.ini"
if show_router_config:
logger.info(delta.getvalue())
delta.close()
logger.debug("Exting API: reset_config_on_routers")
return True
def verify_ospf_neighbor(tgen, topo, dut=None, input_dict=None, lan=False):
"""
This API is to verify ospf neighborship by running
show ip ospf neighbour command,
Parameters
----------
* `tgen` : Topogen object
* `topo` : json file data
* `dut`: device under test
* `input_dict` : Input dict data, required when configuring from testcase
* `lan` : verify neighbors in lan topology
Usage
-----
1. To check FULL neighbors.
verify_ospf_neighbor(tgen, topo, dut=dut)
2. To check neighbors with their roles.
input_dict = {
"r0": {
"ospf": {
"neighbors": {
"r1": {
"state": "Full",
"role": "DR"
},
"r2": {
"state": "Full",
"role": "DROther"
},
"r3": {
"state": "Full",
"role": "DROther"
}
}
}
}
}
result = verify_ospf_neighbor(tgen, topo, dut, input_dict, lan=True)
Returns
-------
True or False (Error Message)
"""
logger.debug("Entering lib API: verify_ospf_neighbor()")
result = False
if input_dict:
for router, rnode in tgen.routers().items():
if "ospf" not in topo["routers"][router]:
continue
if dut is not None and dut != router:
continue
logger.info("Verifying OSPF neighborship on router %s:", router)
show_ospf_json = run_frr_cmd(rnode,
"show ip ospf neighbor all json",
isjson=True)
# Verifying output dictionary show_ospf_json is empty or not
if not bool(show_ospf_json):
errormsg = "OSPF is not running"
return errormsg
ospf_data_list = input_dict[router]["ospf"]
ospf_nbr_list = ospf_data_list["neighbors"]
for ospf_nbr, nbr_data in ospf_nbr_list.items():
data_ip = topo["routers"][ospf_nbr]["links"]
data_rid = topo["routers"][ospf_nbr]["ospf"]["router_id"]
if ospf_nbr in data_ip:
nbr_details = nbr_data[ospf_nbr]
elif lan:
for switch in topo["switches"]:
if "ospf" in topo["switches"][switch]["links"][router]:
neighbor_ip = data_ip[switch]["ipv4"].split("/")[0]
else:
continue
else:
neighbor_ip = data_ip[router]["ipv4"].split("/")[0]
nh_state = None
neighbor_ip = neighbor_ip.lower()
nbr_rid = data_rid
try:
nh_state = show_ospf_json[nbr_rid][0]["state"].split(
"/")[0]
intf_state = show_ospf_json[nbr_rid][0]["state"].split(
"/")[1]
except KeyError:
errormsg = "[DUT: {}] OSPF peer {} missing".format(
router, nbr_rid)
return errormsg
nbr_state = nbr_data.setdefault("state", None)
nbr_role = nbr_data.setdefault("role", None)
if nbr_state:
if nbr_state == nh_state:
logger.info(
"[DUT: {}] OSPF Nbr is {}:{} State {}".format(
router, ospf_nbr, nbr_rid, nh_state))
result = True
else:
errormsg = ("[DUT: {}] OSPF is not Converged, neighbor"
" state is {}".format(router, nh_state))
return errormsg
if nbr_role:
if nbr_role == intf_state:
logger.info(
"[DUT: {}] OSPF Nbr is {}: {} Role {}".format(
router, ospf_nbr, nbr_rid, nbr_role))
else:
errormsg = ("[DUT: {}] OSPF is not Converged with rid"
"{}, role is {}".format(
router, nbr_rid, intf_state))
return errormsg
continue
else:
for router, rnode in tgen.routers().items():
if "ospf" not in topo["routers"][router]:
continue
if dut is not None and dut != router:
continue
logger.info("Verifying OSPF neighborship on router %s:", router)
show_ospf_json = run_frr_cmd(rnode,
"show ip ospf neighbor all json",
isjson=True)
# Verifying output dictionary show_ospf_json is empty or not
if not bool(show_ospf_json):
errormsg = "OSPF is not running"
return errormsg
ospf_data_list = topo["routers"][router]["ospf"]
ospf_neighbors = ospf_data_list["neighbors"]
total_peer = 0
total_peer = len(ospf_neighbors.keys())
no_of_ospf_nbr = 0
ospf_nbr_list = ospf_data_list["neighbors"]
no_of_peer = 0
for ospf_nbr, nbr_data in ospf_nbr_list.items():
if nbr_data:
data_ip = topo["routers"][nbr_data["nbr"]]["links"]
data_rid = topo["routers"][
nbr_data["nbr"]]["ospf"]["router_id"]
else:
data_ip = topo["routers"][ospf_nbr]["links"]
data_rid = topo["routers"][ospf_nbr]["ospf"]["router_id"]
if ospf_nbr in data_ip:
nbr_details = nbr_data[ospf_nbr]
elif lan:
for switch in topo["switches"]:
if "ospf" in topo["switches"][switch]["links"][router]:
neighbor_ip = data_ip[switch]["ipv4"].split("/")[0]
else:
continue
else:
neighbor_ip = data_ip[router]["ipv4"].split("/")[0]
nh_state = None
neighbor_ip = neighbor_ip.lower()
nbr_rid = data_rid
try:
nh_state = show_ospf_json[nbr_rid][0]["state"].split(
"/")[0]
except KeyError:
errormsg = "[DUT: {}] OSPF peer {} missing,from " "{} ".format(
router, nbr_rid, ospf_nbr)
return errormsg
if nh_state == "Full":
no_of_peer += 1
if no_of_peer == total_peer:
logger.info("[DUT: {}] OSPF is Converged".format(router))
result = True
else:
errormsg = "[DUT: {}] OSPF is not Converged".format(router)
return errormsg
logger.debug("Exiting API: verify_ospf_neighbor()")
return result
def __create_ospf_global(tgen,
input_dict,
router,
build=False,
load_config=True):
"""
Helper API to create ospf global configuration.
Parameters
----------
* `tgen` : Topogen object
* `input_dict` : Input dict data, required when configuring from testcase
* `router` : router to be configured.
* `build` : Only for initial setup phase this is set as True.
* `load_config` : Loading the config to router this is set as True.
Returns
-------
True or False
"""
result = False
logger.debug("Entering lib API: __create_ospf_global()")
try:
ospf_data = input_dict[router]["ospf"]
del_ospf_action = ospf_data.setdefault("delete", False)
if del_ospf_action:
config_data = ["no router ospf"]
result = create_common_configuration(tgen, router, config_data,
"ospf", build, load_config)
return result
config_data = []
cmd = "router ospf"
config_data.append(cmd)
# router id
router_id = ospf_data.setdefault("router_id", None)
del_router_id = ospf_data.setdefault("del_router_id", False)
if del_router_id:
config_data.append("no ospf router-id")
if router_id:
config_data.append("ospf router-id {}".format(router_id))
# redistribute command
redistribute_data = ospf_data.setdefault("redistribute", {})
if redistribute_data:
for redistribute in redistribute_data:
if "redist_type" not in redistribute:
logger.debug(
"Router %s: 'redist_type' not present in "
"input_dict", router)
else:
cmd = "redistribute {}".format(redistribute["redist_type"])
for red_type in redistribute_data:
if "route_map" in red_type:
cmd = cmd + " route-map {}".format(
red_type["route_map"])
del_action = redistribute.setdefault("delete", False)
if del_action:
cmd = "no {}".format(cmd)
config_data.append(cmd)
# area information
area_data = ospf_data.setdefault("area", {})
if area_data:
for area in area_data:
if "id" not in area:
logger.debug(
"Router %s: 'area id' not present in "
"input_dict", router)
else:
cmd = "area {}".format(area["id"])
if "type" in area:
cmd = cmd + " {}".format(area["type"])
del_action = area.setdefault("delete", False)
if del_action:
cmd = "no {}".format(cmd)
config_data.append(cmd)
result = create_common_configuration(tgen, router, config_data, "ospf",
build, load_config)
# summary information
summary_data = ospf_data.setdefault("summary-address", {})
if summary_data:
for summary in summary_data:
if "prefix" not in summary:
logger.debug(
"Router %s: 'summary-address' not present in "
"input_dict",
router,
)
else:
cmd = "summary {}/{}".format(summary["prefix"],
summary["mask"])
_tag = summary.setdefault("tag", None)
if _tag:
cmd = "{} tag {}".format(cmd, _tag)
_advertise = summary.setdefault("advertise", True)
if not _advertise:
cmd = "{} no-advertise".format(cmd)
del_action = summary.setdefault("delete", False)
if del_action:
cmd = "no {}".format(cmd)
config_data.append(cmd)
result = create_common_configuration(tgen, router, config_data, "ospf",
build, load_config)
except InvalidCLIError:
# Traceback
errormsg = traceback.format_exc()
logger.error(errormsg)
return errormsg
logger.debug("Exiting lib API: create_ospf_global()")
return result
def verify_ospf_summary(tgen, topo, dut, input_dict):
"""
This API is to verify ospf routes by running
show ip ospf interface command.
Parameters
----------
* `tgen` : Topogen object
* `topo` : topology descriptions
* `dut`: device under test
* `input_dict` : Input dict data, required when configuring from testcase
Usage
-----
input_dict = {
"11.0.0.0/8": {
"Summary address": "11.0.0.0/8",
"Metric-type": "E2",
"Metric": 20,
"Tag": 0,
"External route count": 5
}
}
result = verify_ospf_summary(tgen, topo, dut, input_dict)
Returns
-------
True or False (Error Message)
"""
logger.debug("Entering lib API: verify_ospf_summary()")
result = False
router = dut
logger.info("Verifying OSPF summary on router %s:", router)
if "ospf" not in topo["routers"][dut]:
errormsg = "[DUT: {}] OSPF is not configured on the router.".format(
router)
return errormsg
rnode = tgen.routers()[dut]
show_ospf_json = run_frr_cmd(rnode,
"show ip ospf summary detail json",
isjson=True)
# Verifying output dictionary show_ospf_json is empty or not
if not bool(show_ospf_json):
errormsg = "OSPF is not running"
return errormsg
# To find neighbor ip type
ospf_summary_data = input_dict
for ospf_summ, summ_data in ospf_summary_data.items():
if ospf_summ not in show_ospf_json:
continue
summary = ospf_summary_data[ospf_summ]["Summary address"]
if summary in show_ospf_json:
for summ in summ_data:
if summ_data[summ] == show_ospf_json[summary][summ]:
logger.info(
"[DUT: %s] OSPF summary %s:%s is %s",
router,
summary,
summ,
summ_data[summ],
)
result = True
else:
errormsg = ("[DUT: {}] OSPF summary {}:{} is %s, "
"Expected is {}".format(
router, summary, summ,
show_ospf_json[summary][summ]))
return errormsg
logger.debug("Exiting API: verify_ospf_summary()")
return result
def verify_ospf_database(tgen, topo, dut, input_dict):
"""
This API is to verify ospf lsa's by running
show ip ospf database command.
Parameters
----------
* `tgen` : Topogen object
* `dut`: device under test
* `input_dict` : Input dict data, required when configuring from testcase
* `topo` : next to be verified
Usage
-----
input_dict = {
"areas": {
"0.0.0.0": {
"Router Link States": {
"100.1.1.0-100.1.1.0": {
"LSID": "100.1.1.0",
"Advertised router": "100.1.1.0",
"LSA Age": 130,
"Sequence Number": "80000006",
"Checksum": "a703",
"Router links": 3
}
},
"Net Link States": {
"10.0.0.2-100.1.1.1": {
"LSID": "10.0.0.2",
"Advertised router": "100.1.1.1",
"LSA Age": 137,
"Sequence Number": "80000001",
"Checksum": "9583"
}
},
},
}
}
result = verify_ospf_database(tgen, topo, dut, input_dict)
Returns
-------
True or False (Error Message)
"""
result = False
router = dut
logger.debug("Entering lib API: verify_ospf_database()")
if "ospf" not in topo["routers"][dut]:
errormsg = "[DUT: {}] OSPF is not configured on the router.".format(
dut)
return errormsg
rnode = tgen.routers()[dut]
logger.info("Verifying OSPF interface on router %s:", dut)
show_ospf_json = run_frr_cmd(rnode,
"show ip ospf database json",
isjson=True)
# Verifying output dictionary show_ospf_json is empty or not
if not bool(show_ospf_json):
errormsg = "OSPF is not running"
return errormsg
# for inter and inter lsa's
ospf_db_data = input_dict.setdefault("areas", None)
ospf_external_lsa = input_dict.setdefault("AS External Link States", None)
if ospf_db_data:
for ospf_area, area_lsa in ospf_db_data.items():
if ospf_area in show_ospf_json["areas"]:
if "Router Link States" in area_lsa:
for lsa in area_lsa["Router Link States"]:
if (lsa in show_ospf_json["areas"][ospf_area]
["Router Link States"]):
logger.info(
"[DUT: %s] OSPF LSDB area %s:Router "
"LSA %s",
router,
ospf_area,
lsa,
)
result = True
else:
errormsg = (
"[DUT: {}] OSPF LSDB area {}: expected"
" Router LSA is {}".format(
router, ospf_area, lsa))
return errormsg
if "Net Link States" in area_lsa:
for lsa in area_lsa["Net Link States"]:
if lsa in show_ospf_json["areas"][ospf_area][
"Net Link States"]:
logger.info(
"[DUT: %s] OSPF LSDB area %s:Network "
"LSA %s",
router,
ospf_area,
lsa,
)
result = True
else:
errormsg = (
"[DUT: {}] OSPF LSDB area {}: expected"
" Network LSA is {}".format(
router, ospf_area, lsa))
return errormsg
if "Summary Link States" in area_lsa:
for lsa in area_lsa["Summary Link States"]:
if (lsa in show_ospf_json["areas"][ospf_area]
["Summary Link States"]):
logger.info(
"[DUT: %s] OSPF LSDB area %s:Summary "
"LSA %s",
router,
ospf_area,
lsa,
)
result = True
else:
errormsg = (
"[DUT: {}] OSPF LSDB area {}: expected"
" Summary LSA is {}".format(
router, ospf_area, lsa))
return errormsg
if "ASBR-Summary Link States" in area_lsa:
for lsa in area_lsa["ASBR-Summary Link States"]:
if (lsa in show_ospf_json["areas"][ospf_area]
["ASBR-Summary Link States"]):
logger.info(
"[DUT: %s] OSPF LSDB area %s:ASBR Summary "
"LSA %s",
router,
ospf_area,
lsa,
)
result = True
else:
errormsg = (
"[DUT: {}] OSPF LSDB area {}: expected"
" ASBR Summary LSA is {}".format(
router, ospf_area, lsa))
return errormsg
if ospf_external_lsa:
for ospf_ext_lsa, ext_lsa_data in ospf_external_lsa.items():
if ospf_ext_lsa in show_ospf_json["AS External Link States"]:
logger.info("[DUT: %s] OSPF LSDB:External LSA %s", router,
ospf_ext_lsa)
result = True
else:
errormsg = ("[DUT: {}] OSPF LSDB : expected"
" External LSA is {}".format(router, ospf_ext_lsa))
return errormsg
logger.debug("Exiting API: verify_ospf_database()")
return result
def verify_ospf_interface(tgen, topo, dut=None, lan=False, input_dict=None):
"""
This API is to verify ospf routes by running
show ip ospf interface command.
Parameters
----------
* `tgen` : Topogen object
* `topo` : topology descriptions
* `dut`: device under test
* `lan`: if set to true this interface belongs to LAN.
* `input_dict` : Input dict data, required when configuring from testcase
Usage
-----
input_dict= {
'r0': {
'links':{
's1': {
'ospf':{
'priority':98,
'timerDeadSecs': 4,
'area': '0.0.0.3',
'mcastMemberOspfDesignatedRouters': True,
'mcastMemberOspfAllRouters': True,
'ospfEnabled': True,
}
}
}
}
}
result = verify_ospf_interface(tgen, topo, dut=dut, input_dict=input_dict)
Returns
-------
True or False (Error Message)
"""
logger.debug("Entering lib API: verify_ospf_interface()")
result = False
for router, rnode in tgen.routers().items():
if "ospf" not in topo["routers"][router]:
continue
if dut is not None and dut != router:
continue
logger.info("Verifying OSPF interface on router %s:", router)
show_ospf_json = run_frr_cmd(rnode,
"show ip ospf interface json",
isjson=True)
# Verifying output dictionary show_ospf_json is empty or not
if not bool(show_ospf_json):
errormsg = "OSPF is not running"
return errormsg
# To find neighbor ip type
ospf_intf_data = input_dict[router]["links"]
for ospf_intf, intf_data in ospf_intf_data.items():
intf = topo["routers"][router]["links"][ospf_intf]["interface"]
if intf in show_ospf_json["interfaces"]:
for intf_attribute in intf_data["ospf"]:
if (intf_data["ospf"][intf_attribute] == show_ospf_json[
"interfaces"][intf][intf_attribute]):
logger.info(
"[DUT: %s] OSPF interface %s: %s is %s",
router,
intf,
intf_attribute,
intf_data["ospf"][intf_attribute],
)
else:
errormsg = "[DUT: {}] OSPF interface {}: {} is {}, \
Expected is {}".format(
router,
intf,
intf_attribute,
intf_data["ospf"][intf_attribute],
show_ospf_json["interfaces"][intf][intf_attribute],
)
return errormsg
result = True
logger.debug("Exiting API: verify_ospf_interface()")
return result
def __create_ospf_global(tgen,
input_dict,
router,
build=False,
load_config=True,
ospf="ospf"):
"""
Helper API to create ospf global configuration.
Parameters
----------
* `tgen` : Topogen object
* `input_dict` : Input dict data, required when configuring from testcase
* `router` : router to be configured.
* `build` : Only for initial setup phase this is set as True.
* `load_config` : Loading the config to router this is set as True.
* `ospf` : either 'ospf' or 'ospf6'
Usage
-----
input_dict = {
"routers": {
"r1": {
"links": {
"r3": {
"ipv6": "2013:13::1/64",
"ospf6": {
"hello_interval": 1,
"dead_interval": 4,
"network": "point-to-point"
}
}
},
"ospf6": {
"router_id": "1.1.1.1",
"neighbors": {
"r3": {
"area": "1.1.1.1"
}
}
}
}
}
Returns
-------
True or False
"""
result = False
logger.debug("Entering lib API: __create_ospf_global()")
try:
ospf_data = input_dict[router][ospf]
del_ospf_action = ospf_data.setdefault("delete", False)
if del_ospf_action:
config_data = ["no router {}".format(ospf)]
result = create_common_configuration(tgen, router, config_data,
ospf, build, load_config)
return result
config_data = []
cmd = "router {}".format(ospf)
config_data.append(cmd)
# router id
router_id = ospf_data.setdefault("router_id", None)
del_router_id = ospf_data.setdefault("del_router_id", False)
if del_router_id:
config_data.append("no {} router-id".format(ospf))
if router_id:
config_data.append("{} router-id {}".format(ospf, router_id))
# redistribute command
redistribute_data = ospf_data.setdefault("redistribute", {})
if redistribute_data:
for redistribute in redistribute_data:
if "redist_type" not in redistribute:
logger.debug(
"Router %s: 'redist_type' not present in "
"input_dict", router)
else:
cmd = "redistribute {}".format(redistribute["redist_type"])
for red_type in redistribute_data:
if "route_map" in red_type:
cmd = cmd + " route-map {}".format(
red_type["route_map"])
del_action = redistribute.setdefault("delete", False)
if del_action:
cmd = "no {}".format(cmd)
config_data.append(cmd)
# area information
area_data = ospf_data.setdefault("area", {})
if area_data:
for area in area_data:
if "id" not in area:
logger.debug(
"Router %s: 'area id' not present in "
"input_dict", router)
else:
cmd = "area {}".format(area["id"])
if "type" in area:
cmd = cmd + " {}".format(area["type"])
del_action = area.setdefault("delete", False)
if del_action:
cmd = "no {}".format(cmd)
config_data.append(cmd)
# area interface information for ospf6d only
if ospf == "ospf6":
area_iface = ospf_data.setdefault("neighbors", {})
if area_iface:
for neighbor in area_iface:
if "area" in area_iface[neighbor]:
iface = input_dict[router]["links"][neighbor][
"interface"]
cmd = "interface {} area {}".format(
iface, area_iface[neighbor]["area"])
if area_iface[neighbor].setdefault("delete", False):
cmd = "no {}".format(cmd)
config_data.append(cmd)
# summary information
summary_data = ospf_data.setdefault("summary-address", {})
if summary_data:
for summary in summary_data:
if "prefix" not in summary:
logger.debug(
"Router %s: 'summary-address' not present in "
"input_dict",
router,
)
else:
cmd = "summary {}/{}".format(summary["prefix"],
summary["mask"])
_tag = summary.setdefault("tag", None)
if _tag:
cmd = "{} tag {}".format(cmd, _tag)
_advertise = summary.setdefault("advertise", True)
if not _advertise:
cmd = "{} no-advertise".format(cmd)
del_action = summary.setdefault("delete", False)
if del_action:
cmd = "no {}".format(cmd)
config_data.append(cmd)
result = create_common_configuration(tgen, router, config_data, ospf,
build, load_config)
except InvalidCLIError:
# Traceback
errormsg = traceback.format_exc()
logger.error(errormsg)
return errormsg
logger.debug("Exiting lib API: create_ospf_global()")
return result
def build_topo_from_json(tgen, topo):
"""
Reads configuration from JSON file. Adds routers, creates interface
names dynamically and link routers as defined in JSON to create
topology. Assigns IPs dynamically to all interfaces of each router.
* `tgen`: Topogen object
* `topo`: json file data
"""
ROUTER_LIST = sorted(topo['routers'].keys(),
key=lambda x: int(re_search('\d+', x).group(0)))
listRouters = ROUTER_LIST[:]
for routerN in ROUTER_LIST:
logger.info('Topo: Add router {}'.format(routerN))
tgen.add_router(routerN)
listRouters.append(routerN)
if 'ipv4base' in topo:
ipv4Next = ipaddr.IPv4Address(topo['link_ip_start']['ipv4'])
ipv4Step = 2**(32 - topo['link_ip_start']['v4mask'])
if topo['link_ip_start']['v4mask'] < 32:
ipv4Next += 1
if 'ipv6base' in topo:
ipv6Next = ipaddr.IPv6Address(topo['link_ip_start']['ipv6'])
ipv6Step = 2**(128 - topo['link_ip_start']['v6mask'])
if topo['link_ip_start']['v6mask'] < 127:
ipv6Next += 1
for router in listRouters:
topo['routers'][router]['nextIfname'] = 0
while listRouters != []:
curRouter = listRouters.pop(0)
# Physical Interfaces
if 'links' in topo['routers'][curRouter]:
def link_sort(x):
if x == 'lo':
return 0
elif 'link' in x:
return int(x.split('-link')[1])
else:
return int(re_search('\d+', x).group(0))
for destRouterLink, data in sorted(topo['routers'][curRouter]['links']. \
iteritems(),
key=lambda x: link_sort(x[0])):
currRouter_lo_json = \
topo['routers'][curRouter]['links'][destRouterLink]
# Loopback interfaces
if 'type' in data and data['type'] == 'loopback':
if 'ipv4' in currRouter_lo_json and \
currRouter_lo_json['ipv4'] == 'auto':
currRouter_lo_json['ipv4'] = '{}{}.{}/{}'. \
format(topo['lo_prefix']['ipv4'], number_to_row(curRouter), \
number_to_column(curRouter), topo['lo_prefix']['v4mask'])
if 'ipv6' in currRouter_lo_json and \
currRouter_lo_json['ipv6'] == 'auto':
currRouter_lo_json['ipv6'] = '{}{}:{}/{}'. \
format(topo['lo_prefix']['ipv6'], number_to_row(curRouter), \
number_to_column(curRouter), topo['lo_prefix']['v6mask'])
if "-" in destRouterLink:
# Spliting and storing destRouterLink data in tempList
tempList = destRouterLink.split("-")
# destRouter
destRouter = tempList.pop(0)
# Current Router Link
tempList.insert(0, curRouter)
curRouterLink = "-".join(tempList)
else:
destRouter = destRouterLink
curRouterLink = curRouter
if destRouter in listRouters:
currRouter_link_json = \
topo['routers'][curRouter]['links'][destRouterLink]
destRouter_link_json = \
topo['routers'][destRouter]['links'][curRouterLink]
# Assigning name to interfaces
currRouter_link_json['interface'] = \
'{}-{}-eth{}'.format(curRouter, destRouter, topo['routers'] \
[curRouter]['nextIfname'])
destRouter_link_json['interface'] = \
'{}-{}-eth{}'.format(destRouter, curRouter, topo['routers'] \
[destRouter]['nextIfname'])
topo['routers'][curRouter]['nextIfname'] += 1
topo['routers'][destRouter]['nextIfname'] += 1
# Linking routers to each other as defined in JSON file
tgen.gears[curRouter].add_link(tgen.gears[destRouter],
topo['routers'][curRouter]['links'][destRouterLink] \
['interface'], topo['routers'][destRouter]['links'] \
[curRouterLink]['interface'])
# IPv4
if 'ipv4' in currRouter_link_json:
if currRouter_link_json['ipv4'] == 'auto':
currRouter_link_json['ipv4'] = \
'{}/{}'.format(ipv4Next, topo['link_ip_start'][ \
'v4mask'])
destRouter_link_json['ipv4'] = \
'{}/{}'.format(ipv4Next + 1, topo['link_ip_start'][ \
'v4mask'])
ipv4Next += ipv4Step
# IPv6
if 'ipv6' in currRouter_link_json:
if currRouter_link_json['ipv6'] == 'auto':
currRouter_link_json['ipv6'] = \
'{}/{}'.format(ipv6Next, topo['link_ip_start'][ \
'v6mask'])
destRouter_link_json['ipv6'] = \
'{}/{}'.format(ipv6Next + 1, topo['link_ip_start'][ \
'v6mask'])
ipv6Next = ipaddr.IPv6Address(
int(ipv6Next) + ipv6Step)
logger.debug(
"Generated link data for router: %s\n%s", curRouter,
json_dumps(topo["routers"][curRouter]["links"],
indent=4,
sort_keys=True))
def build_topo_from_json(tgen, topo=None):
"""
Reads configuration from JSON file. Adds routers, creates interface
names dynamically and link routers as defined in JSON to create
topology. Assigns IPs dynamically to all interfaces of each router.
* `tgen`: Topogen object
* `topo`: json file data, or use tgen.json_topo if None
"""
if topo is None:
topo = tgen.json_topo
router_list = sorted(topo["routers"].keys(),
key=lambda x: int(re_search(r"\d+", x).group(0)))
switch_list = []
if "switches" in topo:
switch_list = sorted(topo["switches"].keys(),
key=lambda x: int(re_search(r"\d+", x).group(0)))
listRouters = sorted(router_list[:])
listSwitches = sorted(switch_list[:])
listAllRouters = deepcopy(listRouters)
dictSwitches = {}
for routerN in router_list:
logger.info("Topo: Add router {}".format(routerN))
tgen.add_router(routerN)
for switchN in switch_list:
logger.info("Topo: Add switch {}".format(switchN))
dictSwitches[switchN] = tgen.add_switch(switchN)
if "ipv4base" in topo:
ipv4Next = ipaddress.IPv4Address(topo["link_ip_start"]["ipv4"])
ipv4Step = 2**(32 - topo["link_ip_start"]["v4mask"])
if topo["link_ip_start"]["v4mask"] < 32:
ipv4Next += 1
if "ipv6base" in topo:
ipv6Next = ipaddress.IPv6Address(topo["link_ip_start"]["ipv6"])
ipv6Step = 2**(128 - topo["link_ip_start"]["v6mask"])
if topo["link_ip_start"]["v6mask"] < 127:
ipv6Next += 1
for router in listRouters:
topo["routers"][router]["nextIfname"] = 0
router_count = 0
while listRouters != []:
curRouter = listRouters.pop(0)
# Physical Interfaces
if "links" in topo["routers"][curRouter]:
for destRouterLink, data in sorted(
topo["routers"][curRouter]["links"].items()):
currRouter_lo_json = topo["routers"][curRouter]["links"][
destRouterLink]
# Loopback interfaces
if "type" in data and data["type"] == "loopback":
router_count += 1
if ("ipv4" in currRouter_lo_json
and currRouter_lo_json["ipv4"] == "auto"):
currRouter_lo_json["ipv4"] = "{}{}.{}/{}".format(
topo["lo_prefix"]["ipv4"],
router_count,
number_to_column(curRouter),
topo["lo_prefix"]["v4mask"],
)
if ("ipv6" in currRouter_lo_json
and currRouter_lo_json["ipv6"] == "auto"):
currRouter_lo_json["ipv6"] = "{}{}:{}/{}".format(
topo["lo_prefix"]["ipv6"],
router_count,
number_to_column(curRouter),
topo["lo_prefix"]["v6mask"],
)
if "-" in destRouterLink:
# Spliting and storing destRouterLink data in tempList
tempList = destRouterLink.split("-")
# destRouter
destRouter = tempList.pop(0)
# Current Router Link
tempList.insert(0, curRouter)
curRouterLink = "-".join(tempList)
else:
destRouter = destRouterLink
curRouterLink = curRouter
if destRouter in listRouters:
currRouter_link_json = topo["routers"][curRouter]["links"][
destRouterLink]
destRouter_link_json = topo["routers"][destRouter][
"links"][curRouterLink]
# Assigning name to interfaces
currRouter_link_json["interface"] = "{}-{}-eth{}".format(
curRouter, destRouter,
topo["routers"][curRouter]["nextIfname"])
destRouter_link_json["interface"] = "{}-{}-eth{}".format(
destRouter, curRouter,
topo["routers"][destRouter]["nextIfname"])
# add link interface
destRouter_link_json[
"peer-interface"] = "{}-{}-eth{}".format(
curRouter, destRouter,
topo["routers"][curRouter]["nextIfname"])
currRouter_link_json[
"peer-interface"] = "{}-{}-eth{}".format(
destRouter, curRouter,
topo["routers"][destRouter]["nextIfname"])
topo["routers"][curRouter]["nextIfname"] += 1
topo["routers"][destRouter]["nextIfname"] += 1
# Linking routers to each other as defined in JSON file
tgen.gears[curRouter].add_link(
tgen.gears[destRouter],
topo["routers"][curRouter]["links"][destRouterLink]
["interface"],
topo["routers"][destRouter]["links"][curRouterLink]
["interface"],
)
# IPv4
if "ipv4" in currRouter_link_json:
if currRouter_link_json["ipv4"] == "auto":
currRouter_link_json["ipv4"] = "{}/{}".format(
ipv4Next, topo["link_ip_start"]["v4mask"])
destRouter_link_json["ipv4"] = "{}/{}".format(
ipv4Next + 1, topo["link_ip_start"]["v4mask"])
ipv4Next += ipv4Step
# IPv6
if "ipv6" in currRouter_link_json:
if currRouter_link_json["ipv6"] == "auto":
currRouter_link_json["ipv6"] = "{}/{}".format(
ipv6Next, topo["link_ip_start"]["v6mask"])
destRouter_link_json["ipv6"] = "{}/{}".format(
ipv6Next + 1, topo["link_ip_start"]["v6mask"])
ipv6Next = ipaddress.IPv6Address(
int(ipv6Next) + ipv6Step)
logger.debug(
"Generated link data for router: %s\n%s",
curRouter,
json.dumps(topo["routers"][curRouter]["links"],
indent=4,
sort_keys=True),
)
switch_count = 0
add_switch_to_topo = []
while listSwitches != []:
curSwitch = listSwitches.pop(0)
# Physical Interfaces
if "links" in topo["switches"][curSwitch]:
for destRouterLink, data in sorted(
topo["switches"][curSwitch]["links"].items()):
# Loopback interfaces
if "dst_node" in data:
destRouter = data["dst_node"]
elif "-" in destRouterLink:
# Spliting and storing destRouterLink data in tempList
tempList = destRouterLink.split("-")
# destRouter
destRouter = tempList.pop(0)
else:
destRouter = destRouterLink
if destRouter in listAllRouters:
topo["routers"][destRouter]["links"][curSwitch] = deepcopy(
topo["switches"][curSwitch]["links"][destRouterLink])
# Assigning name to interfaces
topo["routers"][destRouter]["links"][curSwitch][
"interface"] = "{}-{}-eth{}".format(
destRouter, curSwitch,
topo["routers"][destRouter]["nextIfname"])
topo["switches"][curSwitch]["links"][destRouter][
"interface"] = "{}-{}-eth{}".format(
curSwitch, destRouter,
topo["routers"][destRouter]["nextIfname"])
topo["routers"][destRouter]["nextIfname"] += 1
# Add links
dictSwitches[curSwitch].add_link(
tgen.gears[destRouter],
topo["switches"][curSwitch]["links"][destRouter]
["interface"],
topo["routers"][destRouter]["links"][curSwitch]
["interface"],
)
# IPv4
if "ipv4" in topo["routers"][destRouter]["links"][
curSwitch]:
if (topo["routers"][destRouter]["links"][curSwitch]
["ipv4"] == "auto"):
topo["routers"][destRouter]["links"][curSwitch][
"ipv4"] = "{}/{}".format(
ipv4Next, topo["link_ip_start"]["v4mask"])
ipv4Next += 1
# IPv6
if "ipv6" in topo["routers"][destRouter]["links"][
curSwitch]:
if (topo["routers"][destRouter]["links"][curSwitch]
["ipv6"] == "auto"):
topo["routers"][destRouter]["links"][curSwitch][
"ipv6"] = "{}/{}".format(
ipv6Next, topo["link_ip_start"]["v6mask"])
ipv6Next = ipaddress.IPv6Address(
int(ipv6Next) + ipv6Step)
logger.debug(
"Generated link data for router: %s\n%s",
curRouter,
json.dumps(topo["routers"][curRouter]["links"],
indent=4,
sort_keys=True),
)
def config_ospf_interface(tgen,
topo,
input_dict=None,
build=False,
load_config=True):
"""
API to configure ospf on router.
Parameters
----------
* `tgen` : Topogen object
* `topo` : json file data
* `input_dict` : Input dict data, required when configuring from testcase
* `build` : Only for initial setup phase this is set as True.
* `load_config` : Loading the config to router this is set as True.
Usage
-----
r1_ospf_auth = {
"r1": {
"links": {
"r2": {
"ospf": {
"authentication": "message-digest",
"authentication-key": "ospf",
"message-digest-key": "10"
}
}
}
}
}
result = config_ospf_interface(tgen, topo, r1_ospf_auth)
Returns
-------
True or False
"""
logger.debug("Enter lib config_ospf_interface")
if not input_dict:
input_dict = deepcopy(topo)
else:
input_dict = deepcopy(input_dict)
for router in input_dict.keys():
config_data = []
for lnk in input_dict[router]["links"].keys():
if "ospf" not in input_dict[router]["links"][lnk]:
logger.debug(
"Router %s: ospf configs is not present in"
"input_dict, passed input_dict",
router,
input_dict,
)
continue
ospf_data = input_dict[router]["links"][lnk]["ospf"]
data_ospf_area = ospf_data.setdefault("area", None)
data_ospf_auth = ospf_data.setdefault("authentication", None)
data_ospf_dr_priority = ospf_data.setdefault("priority", None)
data_ospf_cost = ospf_data.setdefault("cost", None)
try:
intf = topo["routers"][router]["links"][lnk]["interface"]
except KeyError:
intf = topo["switches"][router]["links"][lnk]["interface"]
# interface
cmd = "interface {}".format(intf)
config_data.append(cmd)
# interface area config
if data_ospf_area:
cmd = "ip ospf area {}".format(data_ospf_area)
config_data.append(cmd)
# interface ospf auth
if data_ospf_auth:
if data_ospf_auth == "null":
cmd = "ip ospf authentication null"
elif data_ospf_auth == "message-digest":
cmd = "ip ospf authentication message-digest"
else:
cmd = "ip ospf authentication"
if "del_action" in ospf_data:
cmd = "no {}".format(cmd)
config_data.append(cmd)
if "message-digest-key" in ospf_data:
cmd = "ip ospf message-digest-key {} md5 {}".format(
ospf_data["message-digest-key"],
ospf_data["authentication-key"])
if "del_action" in ospf_data:
cmd = "no {}".format(cmd)
config_data.append(cmd)
if ("authentication-key" in ospf_data
and "message-digest-key" not in ospf_data):
cmd = "ip ospf authentication-key {}".format(
ospf_data["authentication-key"])
if "del_action" in ospf_data:
cmd = "no {}".format(cmd)
config_data.append(cmd)
# interface ospf dr priority
if data_ospf_dr_priority in ospf_data:
cmd = "ip ospf priority {}".format(ospf_data["priority"])
if "del_action" in ospf_data:
cmd = "no {}".format(cmd)
config_data.append(cmd)
# interface ospf cost
if data_ospf_cost in ospf_data:
cmd = "ip ospf cost {}".format(ospf_data["cost"])
if "del_action" in ospf_data:
cmd = "no {}".format(cmd)
config_data.append(cmd)
if build:
return config_data
else:
result = create_common_configuration(tgen,
router,
config_data,
"interface_config",
build=build)
logger.debug("Exiting lib API: create_igmp_config()")
return result
def build_topo_from_json(tgen, topo):
"""
Reads configuration from JSON file. Adds routers, creates interface
names dynamically and link routers as defined in JSON to create
topology. Assigns IPs dynamically to all interfaces of each router.
* `tgen`: Topogen object
* `topo`: json file data
"""
ROUTER_LIST = sorted(topo["routers"].keys(),
key=lambda x: int(re_search("\d+", x).group(0)))
SWITCH_LIST = []
if "switches" in topo:
SWITCH_LIST = sorted(topo["switches"].keys(),
key=lambda x: int(re_search("\d+", x).group(0)))
listRouters = ROUTER_LIST[:]
listSwitches = SWITCH_LIST[:]
listAllRouters = deepcopy(listRouters)
dictSwitches = {}
for routerN in ROUTER_LIST:
logger.info("Topo: Add router {}".format(routerN))
tgen.add_router(routerN)
listRouters.append(routerN)
for switchN in SWITCH_LIST:
logger.info("Topo: Add switch {}".format(switchN))
dictSwitches[switchN] = tgen.add_switch(switchN)
listSwitches.append(switchN)
if "ipv4base" in topo:
ipv4Next = ipaddress.IPv4Address(topo["link_ip_start"]["ipv4"])
ipv4Step = 2**(32 - topo["link_ip_start"]["v4mask"])
if topo["link_ip_start"]["v4mask"] < 32:
ipv4Next += 1
if "ipv6base" in topo:
ipv6Next = ipaddress.IPv6Address(topo["link_ip_start"]["ipv6"])
ipv6Step = 2**(128 - topo["link_ip_start"]["v6mask"])
if topo["link_ip_start"]["v6mask"] < 127:
ipv6Next += 1
for router in listRouters:
topo["routers"][router]["nextIfname"] = 0
while listRouters != []:
curRouter = listRouters.pop(0)
# Physical Interfaces
if "links" in topo["routers"][curRouter]:
def link_sort(x):
if x == "lo":
return 0
elif "link" in x:
return int(x.split("-link")[1])
else:
return int(re_search("\d+", x).group(0))
for destRouterLink, data in sorted(
topo["routers"][curRouter]["links"].items(),
key=lambda x: link_sort(x[0]),
):
currRouter_lo_json = topo["routers"][curRouter]["links"][
destRouterLink]
# Loopback interfaces
if "type" in data and data["type"] == "loopback":
if ("ipv4" in currRouter_lo_json
and currRouter_lo_json["ipv4"] == "auto"):
currRouter_lo_json["ipv4"] = "{}{}.{}/{}".format(
topo["lo_prefix"]["ipv4"],
number_to_row(curRouter),
number_to_column(curRouter),
topo["lo_prefix"]["v4mask"],
)
if ("ipv6" in currRouter_lo_json
and currRouter_lo_json["ipv6"] == "auto"):
currRouter_lo_json["ipv6"] = "{}{}:{}/{}".format(
topo["lo_prefix"]["ipv6"],
number_to_row(curRouter),
number_to_column(curRouter),
topo["lo_prefix"]["v6mask"],
)
if "-" in destRouterLink:
# Spliting and storing destRouterLink data in tempList
tempList = destRouterLink.split("-")
# destRouter
destRouter = tempList.pop(0)
# Current Router Link
tempList.insert(0, curRouter)
curRouterLink = "-".join(tempList)
else:
destRouter = destRouterLink
curRouterLink = curRouter
if destRouter in listRouters:
currRouter_link_json = topo["routers"][curRouter]["links"][
destRouterLink]
destRouter_link_json = topo["routers"][destRouter][
"links"][curRouterLink]
# Assigning name to interfaces
currRouter_link_json["interface"] = "{}-{}-eth{}".format(
curRouter, destRouter,
topo["routers"][curRouter]["nextIfname"])
destRouter_link_json["interface"] = "{}-{}-eth{}".format(
destRouter, curRouter,
topo["routers"][destRouter]["nextIfname"])
topo["routers"][curRouter]["nextIfname"] += 1
topo["routers"][destRouter]["nextIfname"] += 1
# Linking routers to each other as defined in JSON file
tgen.gears[curRouter].add_link(
tgen.gears[destRouter],
topo["routers"][curRouter]["links"][destRouterLink]
["interface"],
topo["routers"][destRouter]["links"][curRouterLink]
["interface"],
)
# IPv4
if "ipv4" in currRouter_link_json:
if currRouter_link_json["ipv4"] == "auto":
currRouter_link_json["ipv4"] = "{}/{}".format(
ipv4Next, topo["link_ip_start"]["v4mask"])
destRouter_link_json["ipv4"] = "{}/{}".format(
ipv4Next + 1, topo["link_ip_start"]["v4mask"])
ipv4Next += ipv4Step
# IPv6
if "ipv6" in currRouter_link_json:
if currRouter_link_json["ipv6"] == "auto":
currRouter_link_json["ipv6"] = "{}/{}".format(
ipv6Next, topo["link_ip_start"]["v6mask"])
destRouter_link_json["ipv6"] = "{}/{}".format(
ipv6Next + 1, topo["link_ip_start"]["v6mask"])
ipv6Next = ipaddress.IPv6Address(
int(ipv6Next) + ipv6Step)
logger.debug(
"Generated link data for router: %s\n%s",
curRouter,
json_dumps(topo["routers"][curRouter]["links"],
indent=4,
sort_keys=True),
)
switch_count = 0
add_switch_to_topo = []
while listSwitches != []:
curSwitch = listSwitches.pop(0)
# Physical Interfaces
if "links" in topo['switches'][curSwitch]:
for destRouterLink, data in sorted(
topo['switches'][curSwitch]['links'].items()):
# Loopback interfaces
if "dst_node" in data:
destRouter = data['dst_node']
elif "-" in destRouterLink:
# Spliting and storing destRouterLink data in tempList
tempList = destRouterLink.split("-")
# destRouter
destRouter = tempList.pop(0)
else:
destRouter = destRouterLink
if destRouter in listAllRouters:
topo['routers'][destRouter]['links'][curSwitch] = \
deepcopy(topo['switches'][curSwitch]['links'][destRouterLink])
# Assigning name to interfaces
topo['routers'][destRouter]['links'][curSwitch]['interface'] = \
'{}-{}-eth{}'.format(destRouter, curSwitch, topo['routers'] \
[destRouter]['nextIfname'])
topo['switches'][curSwitch]['links'][destRouter]['interface'] = \
'{}-{}-eth{}'.format(curSwitch, destRouter, topo['routers'] \
[destRouter]['nextIfname'])
topo['routers'][destRouter]['nextIfname'] += 1
# Add links
dictSwitches[curSwitch].add_link(tgen.gears[destRouter], \
topo['switches'][curSwitch]['links'][destRouter]['interface'],
topo['routers'][destRouter]['links'][curSwitch]['interface'],
)
# IPv4
if 'ipv4' in topo['routers'][destRouter]['links'][
curSwitch]:
if topo['routers'][destRouter]['links'][curSwitch][
'ipv4'] == 'auto':
topo['routers'][destRouter]['links'][curSwitch]['ipv4'] = \
'{}/{}'.format(ipv4Next, topo['link_ip_start'][ \
'v4mask'])
ipv4Next += 1
# IPv6
if 'ipv6' in topo['routers'][destRouter]['links'][
curSwitch]:
if topo['routers'][destRouter]['links'][curSwitch][
'ipv6'] == 'auto':
topo['routers'][destRouter]['links'][curSwitch]['ipv6'] = \
'{}/{}'.format(ipv6Next, topo['link_ip_start'][ \
'v6mask'])
ipv6Next = ipaddr.IPv6Address(
int(ipv6Next) + ipv6Step)
logger.debug(
"Generated link data for router: %s\n%s",
curRouter,
json_dumps(topo["routers"][curRouter]["links"],
indent=4,
sort_keys=True),
)
def verify_stale_routes_list(tgen, addr_type, dut, input_dict):
"""
This API is use verify Stale routes on refering the network with next hop value
Parameters
----------
* `tgen`: topogen object
* `dut`: input dut router name
* `addr_type` : ip type ipv4/ipv6
* `input_dict` : input dict, has details of static routes
Usage
-----
dut = 'r1'
input_dict = {
"r3": {
"static_routes": [
{
"network": [NETWORK1_1[addr_type]],
"no_of_ip": 2,
"vrf": "RED"
}
]
}
}
result = verify_stale_routes_list(tgen, addr_type, dut, input_dict)
Returns
-------
errormsg(str) or True
"""
logger.debug("Entering lib API: verify_stale_routes_list()")
router_list = tgen.routers()
additional_nexthops_in_required_nhs = []
list1 = []
list2 = []
found_hops = []
for routerInput in input_dict.keys():
for router, rnode in router_list.items():
if router != dut:
continue
# Verifying RIB routes
command = "show bgp"
# Static routes
sleep(2)
logger.info('Checking router {} BGP RIB:'.format(dut))
if 'static_routes' in input_dict[routerInput]:
static_routes = input_dict[routerInput]["static_routes"]
for static_route in static_routes:
found_routes = []
missing_routes = []
st_found = False
nh_found = False
vrf = static_route.setdefault("vrf", None)
community = static_route.setdefault("community", None)
largeCommunity = \
static_route.setdefault("largeCommunity", None)
if vrf:
cmd = "{} vrf {} {}".\
format(command, vrf, addr_type)
if community:
cmd = "{} community {}".\
format(cmd, community)
if largeCommunity:
cmd = "{} large-community {}".\
format(cmd, largeCommunity)
else:
cmd = "{} {}".\
format(command, addr_type)
cmd = "{} json".format(cmd)
rib_routes_json = run_frr_cmd(rnode, cmd, isjson=True)
# Verifying output dictionary rib_routes_json is not empty
if bool(rib_routes_json) == False:
errormsg = "[DUT: {}]: No route found in rib of router". \
format(router)
return errormsg
elif "warning" in rib_routes_json:
errormsg = "[DUT: {}]: {}". \
format(router, rib_routes_json["warning"])
return errormsg
network = static_route["network"]
if "no_of_ip" in static_route:
no_of_ip = static_route["no_of_ip"]
else:
no_of_ip = 1
# Generating IPs for verification
ip_list = generate_ips(network, no_of_ip)
for st_rt in ip_list:
st_rt = str(ipaddress.ip_network(st_rt))
_addr_type = validate_ip_address(st_rt)
if _addr_type != addr_type:
continue
if st_rt in rib_routes_json["routes"]:
st_found = True
found_routes.append(st_rt)
for mnh in range(0, len(rib_routes_json[
'routes'][st_rt])):
found_hops.append([rib_r[
"ip"] for rib_r in rib_routes_json[
'routes'][st_rt][
mnh]["nexthops"]])
return found_hops
else:
return 'error msg - no hops found'
