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import logging
import time
from typing import NamedTuple
import pytest
from atf_python.sys.netlink.attrs import NlAttrNested
from atf_python.sys.netlink.attrs import NlAttrStr
from atf_python.sys.netlink.netlink import NetlinkMultipartIterator
from atf_python.sys.netlink.netlink import NlHelper
from atf_python.sys.netlink.netlink import Nlsock
from atf_python.sys.netlink.netlink_generic import KtestAttrType
from atf_python.sys.netlink.netlink_generic import KtestInfoMessage
from atf_python.sys.netlink.netlink_generic import KtestLogMsgType
from atf_python.sys.netlink.netlink_generic import KtestMsgAttrType
from atf_python.sys.netlink.netlink_generic import KtestMsgType
from atf_python.sys.netlink.netlink_generic import timespec
from atf_python.sys.netlink.utils import NlConst
from atf_python.utils import BaseTest
from atf_python.utils import libc
from atf_python.utils import nodeid_to_method_name
datefmt = "%H:%M:%S"
fmt = "%(asctime)s.%(msecs)03d %(filename)s:%(funcName)s:%(lineno)d %(message)s"
logging.basicConfig(level=logging.DEBUG, format=fmt, datefmt=datefmt)
logger = logging.getLogger("ktest")
NETLINK_FAMILY = "ktest"
class KtestItem(pytest.Item):
def __init__(self, *, descr, kcls, **kwargs):
super().__init__(**kwargs)
self.descr = descr
self._kcls = kcls
def runtest(self):
self._kcls().runtest()
class KtestCollector(pytest.Class):
def collect(self):
obj = self.obj
exclude_names = set([n for n in dir(obj) if not n.startswith("_")])
autoload = obj.KTEST_MODULE_AUTOLOAD
module_name = obj.KTEST_MODULE_NAME
loader = KtestLoader(module_name, autoload)
ktests = loader.load_ktests()
if not ktests:
return
orig = pytest.Class.from_parent(self.parent, name=self.name, obj=obj)
for py_test in orig.collect():
yield py_test
for ktest in ktests:
name = ktest["name"]
descr = ktest["desc"]
if name in exclude_names:
continue
yield KtestItem.from_parent(self, name=name, descr=descr, kcls=obj)
class KtestLoader(object):
def __init__(self, module_name: str, autoload: bool):
self.module_name = module_name
self.autoload = autoload
self.helper = NlHelper()
self.nlsock = Nlsock(NlConst.NETLINK_GENERIC, self.helper)
self.family_id = self._get_family_id()
def _get_family_id(self):
try:
family_id = self.nlsock.get_genl_family_id(NETLINK_FAMILY)
except ValueError:
if self.autoload:
libc.kldload(self.module_name)
family_id = self.nlsock.get_genl_family_id(NETLINK_FAMILY)
else:
raise
return family_id
def _load_ktests(self):
msg = KtestInfoMessage(self.helper, self.family_id, KtestMsgType.KTEST_CMD_LIST)
msg.set_request()
msg.add_nla(NlAttrStr(KtestAttrType.KTEST_ATTR_MOD_NAME, self.module_name))
self.nlsock.write_message(msg, verbose=False)
nlmsg_seq = msg.nl_hdr.nlmsg_seq
ret = []
for rx_msg in NetlinkMultipartIterator(self.nlsock, nlmsg_seq, self.family_id):
# rx_msg.print_message()
tst = {
"mod_name": rx_msg.get_nla(KtestAttrType.KTEST_ATTR_MOD_NAME).text,
"name": rx_msg.get_nla(KtestAttrType.KTEST_ATTR_TEST_NAME).text,
"desc": rx_msg.get_nla(KtestAttrType.KTEST_ATTR_TEST_DESCR).text,
}
ret.append(tst)
return ret
def load_ktests(self):
ret = self._load_ktests()
if not ret and self.autoload:
libc.kldload(self.module_name)
ret = self._load_ktests()
return ret
def generate_ktests(collector, name, obj):
if getattr(obj, "KTEST_MODULE_NAME", None) is not None:
return KtestCollector.from_parent(collector, name=name, obj=obj)
return None
class BaseKernelTest(BaseTest):
KTEST_MODULE_AUTOLOAD = True
KTEST_MODULE_NAME = None
def _get_record_time(self, msg) -> float:
timespec = msg.get_nla(KtestMsgAttrType.KTEST_MSG_ATTR_TS).ts
epoch_ktime = timespec.tv_sec * 1.0 + timespec.tv_nsec * 1.0 / 1000000000
if not hasattr(self, "_start_epoch"):
self._start_ktime = epoch_ktime
self._start_time = time.time()
epoch_time = self._start_time
else:
epoch_time = time.time() - self._start_time + epoch_ktime
return epoch_time
def _log_message(self, msg):
# Convert syslog-type l
syslog_level = msg.get_nla(KtestMsgAttrType.KTEST_MSG_ATTR_LEVEL).u8
if syslog_level <= 6:
loglevel = logging.INFO
else:
loglevel = logging.DEBUG
rec = logging.LogRecord(
self.KTEST_MODULE_NAME,
loglevel,
msg.get_nla(KtestMsgAttrType.KTEST_MSG_ATTR_FILE).text,
msg.get_nla(KtestMsgAttrType.KTEST_MSG_ATTR_LINE).u32,
"%s",
(msg.get_nla(KtestMsgAttrType.KTEST_MSG_ATTR_TEXT).text),
None,
msg.get_nla(KtestMsgAttrType.KTEST_MSG_ATTR_FUNC).text,
None,
)
rec.created = self._get_record_time(msg)
logger.handle(rec)
def _runtest_name(self, test_name: str, test_data):
module_name = self.KTEST_MODULE_NAME
# print("Running kernel test {} for module {}".format(test_name, module_name))
helper = NlHelper()
nlsock = Nlsock(NlConst.NETLINK_GENERIC, helper)
family_id = nlsock.get_genl_family_id(NETLINK_FAMILY)
msg = KtestInfoMessage(helper, family_id, KtestMsgType.KTEST_CMD_RUN)
msg.set_request()
msg.add_nla(NlAttrStr(KtestAttrType.KTEST_ATTR_MOD_NAME, module_name))
msg.add_nla(NlAttrStr(KtestAttrType.KTEST_ATTR_TEST_NAME, test_name))
if test_data is not None:
msg.add_nla(NlAttrNested(KtestAttrType.KTEST_ATTR_TEST_META, test_data))
nlsock.write_message(msg, verbose=False)
for log_msg in NetlinkMultipartIterator(
nlsock, msg.nl_hdr.nlmsg_seq, family_id
):
self._log_message(log_msg)
def runtest(self, test_data=None):
self._runtest_name(nodeid_to_method_name(self.test_id), test_data)
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