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tests: Add library support for BGP-Graceful-Restart automation
1. Adding APIs to common_config.py to support BGP-Graceful-Restart automation 2. Adding APIs to create BGP-GR config to bgp.py 3. Adding verification API for BGP-GR functionality Signed-off-by: Kuldeep Kashyap <kashyapk@vmware.com>
This commit is contained in:
Kuldeep Kashyap
parent
c65a7e26dc
commit
a5a52d6608
File diff suppressed because it is too large
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@ -179,7 +179,7 @@ def run_frr_cmd(rnode, cmd, isjson=False):
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raise InvalidCLIError("No actual cmd passed")
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def create_common_configuration(tgen, router, data, config_type=None, build=False):
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def create_common_configuration(tgen, router, data, config_type=None, build=False, load_config=True):
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"""
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API to create object of class FRRConfig and also create frr_json.conf
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file. It will create interface and common configurations and save it to
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@ -216,6 +216,8 @@ def create_common_configuration(tgen, router, data, config_type=None, build=Fals
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if build:
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mode = "a"
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elif not load_config:
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mode = "a"
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else:
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mode = "w"
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@ -236,12 +238,128 @@ def create_common_configuration(tgen, router, data, config_type=None, build=Fals
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frr_cfg_fd.close()
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# If configuration applied from build, it will done at last
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if not build:
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if not build and load_config:
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load_config_to_router(tgen, router)
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return True
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def kill_router_daemons(tgen, router, daemons):
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"""
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Router's current config would be saved to /etc/frr/ for each deamon
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and deamon would be killed forcefully using SIGKILL.
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* `tgen` : topogen object
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* `router`: Device under test
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* `daemons`: list of daemons to be killed
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"""
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logger.debug("Entering lib API: kill_router_daemons()")
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try:
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router_list = tgen.routers()
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# Saving router config to /etc/frr, which will be loaded to router
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# when it starts
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router_list[router].vtysh_cmd("write memory")
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# Kill Daemons
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result = router_list[router].killDaemons(daemons)
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if len(result) > 0:
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assert "Errors found post shutdown - details follow:" == 0, result
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return result
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except Exception as e:
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errormsg = traceback.format_exc()
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logger.error(errormsg)
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return errormsg
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def start_router_daemons(tgen, router, daemons):
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"""
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Daemons defined by user would be started
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* `tgen` : topogen object
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* `router`: Device under test
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* `daemons`: list of daemons to be killed
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"""
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logger.debug("Entering lib API: start_router_daemons()")
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try:
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router_list = tgen.routers()
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# Start daemons
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result = router_list[router].startDaemons(daemons)
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sleep(5)
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return result
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except Exception as e:
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errormsg = traceback.format_exc()
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logger.error(errormsg)
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return errormsg
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logger.debug("Exiting lib API: start_router_daemons()")
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return True
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def kill_mininet_routers_process(tgen):
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"""
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Kill all mininet stale router' processes
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* `tgen` : topogen object
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"""
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router_list = tgen.routers()
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for rname, router in router_list.iteritems():
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daemon_list = [
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"zebra",
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"ospfd",
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"ospf6d",
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"bgpd",
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"ripd",
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"ripngd",
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"isisd",
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"pimd",
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"ldpd",
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"staticd",
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]
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for daemon in daemon_list:
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router.run("killall -9 {}".format(daemon))
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def check_router_status(tgen):
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"""
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Check if all daemons are running for all routers in topology
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* `tgen` : topogen object
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"""
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logger.debug("Entering lib API: start_router_daemons()")
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try:
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router_list = tgen.routers()
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for router, rnode in router_list.iteritems():
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result = rnode.check_router_running()
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if result != "":
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daemons = []
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if "bgpd" in result:
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daemons.append("bgpd")
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if "zebra" in result:
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daemons.append("zebra")
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rnode.startDaemons(daemons)
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except Exception as e:
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errormsg = traceback.format_exc()
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logger.error(errormsg)
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return errormsg
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logger.debug("Exiting lib API: start_router_daemons()")
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return True
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def reset_config_on_routers(tgen, routerName=None):
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"""
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Resets configuration on routers to the snapshot created using input JSON
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@ -414,6 +532,69 @@ def load_config_to_router(tgen, routerName, save_bkup=False):
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return True
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def get_frr_ipv6_linklocal(tgen, router, intf=None):
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"""
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API to get the link local ipv6 address of a perticular interface using
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FRR command 'show interface'
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* `tgen`: tgen onject
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* `router` : router for which hightest interface should be
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calculated
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* `intf` : interface for which linklocal address needs to be taken
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Usage
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-----
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linklocal = get_frr_ipv6_linklocal(tgen, router, "intf1", RED_A)
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Returns
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-------
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1) array of interface names to link local ips.
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"""
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router_list = tgen.routers()
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for rname, rnode in router_list.iteritems():
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if rname != router:
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continue
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linklocal = []
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cmd = "show interface"
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ifaces = router_list[router].run('vtysh -c "{}"'.format(cmd))
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# Fix newlines (make them all the same)
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ifaces = ("\n".join(ifaces.splitlines()) + "\n").splitlines()
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interface = None
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ll_per_if_count = 0
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for line in ifaces:
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# Interface name
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m = re_search("Interface ([a-zA-Z0-9-]+) is", line)
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if m:
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interface = m.group(1).split(" ")[0]
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ll_per_if_count = 0
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# Interface ip
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m1 = re_search("inet6 (fe80[:a-fA-F0-9]+[\/0-9]+)", line)
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if m1:
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local = m1.group(1)
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ll_per_if_count += 1
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if ll_per_if_count > 1:
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linklocal += [["%s-%s" % (interface, ll_per_if_count), local]]
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else:
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linklocal += [[interface, local]]
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if linklocal:
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if intf:
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return [_linklocal[1] for _linklocal in linklocal if _linklocal[0] == intf][
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0
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].split("/")[0]
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return linklocal
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else:
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errormsg = "Link local ip missing on router {}"
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return errormsg
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def start_topology(tgen):
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"""
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Starting topology, create tmp files which are loaded to routers
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@ -1741,15 +1922,13 @@ def verify_rib(tgen, addr_type, dut, input_dict, next_hop=None, protocol=None):
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if type(next_hop) is not list:
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next_hop = [next_hop]
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for index, nh in enumerate(next_hop):
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if (
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rib_routes_json[st_rt][0]["nexthops"][
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index
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]["ip"]
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== nh
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):
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for nh in next_hop:
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for nh_json in rib_routes_json[st_rt][0]["nexthops"]:
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if nh != nh_json["ip"]:
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continue
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nh_found = True
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else:
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if not nh_found:
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errormsg = (
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"Nexthop {} is Missing"
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" for {} route {} in "
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@ -1195,21 +1195,6 @@ class Router(Node):
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errors = ""
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if assertOnError and len(errors) > 0:
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assert "Errors found - details follow:" == 0, errors
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errors = ""
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# Check Memory leaks
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if pytest.config.getoption('--valgrind'):
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mem_leak, mem_data = self.check_mem_leaks_valgrind(
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daemon
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)
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if mem_leak:
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for d_name, data in mem_data.items():
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if data:
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logger.error(
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"Memory leaks in router [%s] for "
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"daemon [%s]", self.name, daemon)
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errors = "Router [%s] has memory leak, Check" \
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" logs for details." % self.name
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else:
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daemonsNotRunning.append(daemon)
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if len(daemonsNotRunning) > 0:
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