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tests: add routing tests for switching between same prefixes

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Differential Revision: https://reviews.freebsd.org/D36055
MFC after:	2 weeks
This commit is contained in:
Alexander V. Chernikov 2022-08-06 10:36:12 +00:00
parent 08349b18ea
commit 7064c94a02
4 changed files with 102 additions and 3 deletions
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15
tests/atf_python/sys/net/tools.py
View File

@ -41,7 +41,7 @@ def set_sysctl(cls, oid, val):
def get_routes(cls, family: str, fibnum: int = 0):
family_key = {"inet": "-4", "inet6": "-6"}.get(family)
out = cls.get_output(
"{} {} -rn -F {} --libxo json".format(cls.NETSTAT_PATH, family_key, fibnum)
"{} {} -rnW -F {} --libxo json".format(cls.NETSTAT_PATH, family_key, fibnum)
)
js = json.loads(out)
js = js["statistics"]["route-information"]["route-table"]["rt-family"]
@ -50,6 +50,19 @@ def get_routes(cls, family: str, fibnum: int = 0):
else:
return []
@classmethod
def get_nhops(cls, family: str, fibnum: int = 0):
family_key = {"inet": "-4", "inet6": "-6"}.get(family)
out = cls.get_output(
"{} {} -onW -F {} --libxo json".format(cls.NETSTAT_PATH, family_key, fibnum)
)
js = json.loads(out)
js = js["statistics"]["route-nhop-information"]["nhop-table"]["rt-family"]
if js:
return js[0]["nh-entry"]
else:
return []
@classmethod
def get_linklocals(cls):
ret = {}

8
tests/atf_python/sys/net/vnet.py
View File

@ -101,11 +101,15 @@ def setup_addr(self, _addr: str):
addr = ipaddress.ip_interface(_addr)
if addr.version == 6:
family = "inet6"
cmd = "/sbin/ifconfig {} {} {}".format(self.name, family, addr)
else:
family = "inet"
cmd = "/sbin/ifconfig {} {} {}".format(self.name, family, addr)
if self.addr_map[family]:
cmd = "/sbin/ifconfig {} alias {}".format(self.name, addr)
else:
cmd = "/sbin/ifconfig {} {} {}".format(self.name, family, addr)
self.run_cmd(cmd)
self.addr_map[family][str(addr)] = addr
self.addr_map[family][str(addr.ip)] = addr
def delete_addr(self, _addr: str):
addr = ipaddress.ip_address(_addr)

1
tests/sys/net/routing/Makefile
View File

@ -7,6 +7,7 @@ TESTSDIR= ${TESTSBASE}/sys/net/routing
ATF_TESTS_C += test_rtsock_l3
ATF_TESTS_C += test_rtsock_lladdr
ATF_TESTS_PYTEST += test_routing_l3.py
ATF_TESTS_PYTEST += test_rtsock_multipath.py
${PACKAGE}FILES+= generic_cleanup.sh

81
tests/sys/net/routing/test_routing_l3.py Executable file
View File

@ -0,0 +1,81 @@
import ipaddress
import pytest
from atf_python.sys.net.tools import ToolsHelper
from atf_python.sys.net.vnet import VnetTestTemplate
class TestIfOps(VnetTestTemplate):
TOPOLOGY = {
"vnet1": {"ifaces": ["if1", "if2"]},
"if1": {"prefixes4": [], "prefixes6": []},
"if2": {"prefixes4": [], "prefixes6": []},
}
@pytest.mark.parametrize("family", ["inet", "inet6"])
@pytest.mark.require_user("root")
def test_change_prefix_route(self, family):
"""Tests that prefix route changes to the new one upon addr deletion"""
vnet = self.vnet_map["vnet1"]
first_iface = vnet.iface_alias_map["if1"]
second_iface = vnet.iface_alias_map["if2"]
if family == "inet":
first_addr = ipaddress.ip_interface("192.0.2.1/24")
second_addr = ipaddress.ip_interface("192.0.2.2/24")
else:
first_addr = ipaddress.ip_interface("2001:db8::1/64")
second_addr = ipaddress.ip_interface("2001:db8::2/64")
first_iface.setup_addr(str(first_addr))
second_iface.setup_addr(str(second_addr))
# At this time prefix should be pointing to the first interface
routes = ToolsHelper.get_routes(family)
px = [r for r in routes if r["destination"] == str(first_addr.network)][0]
assert px["interface-name"] == first_iface.name
# Now delete address from the first interface and verify switchover
first_iface.delete_addr(first_addr.ip)
routes = ToolsHelper.get_routes(family)
px = [r for r in routes if r["destination"] == str(first_addr.network)][0]
assert px["interface-name"] == second_iface.name
@pytest.mark.parametrize(
"family",
[
"inet",
pytest.param("inet6", marks=pytest.mark.xfail(reason="currently fails")),
],
)
@pytest.mark.require_user("root")
def test_change_prefix_route_same_iface(self, family):
"""Tests that prefix route changes to the new ifa upon addr deletion"""
vnet = self.vnet_map["vnet1"]
first_iface = vnet.iface_alias_map["if1"]
if family == "inet":
first_addr = ipaddress.ip_interface("192.0.2.1/24")
second_addr = ipaddress.ip_interface("192.0.2.2/24")
else:
first_addr = ipaddress.ip_interface("2001:db8::1/64")
second_addr = ipaddress.ip_interface("2001:db8::2/64")
first_iface.setup_addr(str(first_addr))
first_iface.setup_addr(str(second_addr))
# At this time prefix should be pointing to the first interface
routes = ToolsHelper.get_routes(family)
px = [r for r in routes if r["destination"] == str(first_addr.network)][0]
assert px["interface-name"] == first_iface.name
# Now delete address from the first interface and verify switchover
first_iface.delete_addr(str(first_addr.ip))
routes = ToolsHelper.get_routes(family)
px = [r for r in routes if r["destination"] == str(first_addr.network)][0]
nhop_kidx = px["nhop"]
assert px["interface-name"] == first_iface.name
nhops = ToolsHelper.get_nhops(family)
nh = [nh for nh in nhops if nh["index"] == nhop_kidx][0]
assert nh["ifa"] == str(second_addr.ip)