Add glue code for accessing the YNL library which lives under tools/net and YAML spec files from under Documentation/. Automatically figure out if tests are run in tree or not. Since we'll want to use this library both from net and drivers/net test targets make the library a target as well, and automatically include it when net or drivers/net are included. Making net/lib a target ensures that we end up with only one copy of it, and saves us some path guessing.
Add a tiny bit of formatting support to be able to output KTAP from the start.
Reviewed-by: Petr Machata petrm@nvidia.com Signed-off-by: Jakub Kicinski kuba@kernel.org --- v3: - don't use unnecessary wildcards v2: - include the net/lib only in install - support passing state to tests - don't apply Path() on what's already a Path() - fix spacing in Makefile's filter() - sort imports
CC: shuah@kernel.org CC: linux-kselftest@vger.kernel.org --- tools/testing/selftests/Makefile | 9 +- tools/testing/selftests/net/lib/Makefile | 8 ++ .../testing/selftests/net/lib/py/__init__.py | 6 ++ tools/testing/selftests/net/lib/py/consts.py | 9 ++ tools/testing/selftests/net/lib/py/ksft.py | 96 +++++++++++++++++++ tools/testing/selftests/net/lib/py/utils.py | 47 +++++++++ tools/testing/selftests/net/lib/py/ynl.py | 49 ++++++++++ 7 files changed, 223 insertions(+), 1 deletion(-) create mode 100644 tools/testing/selftests/net/lib/Makefile create mode 100644 tools/testing/selftests/net/lib/py/__init__.py create mode 100644 tools/testing/selftests/net/lib/py/consts.py create mode 100644 tools/testing/selftests/net/lib/py/ksft.py create mode 100644 tools/testing/selftests/net/lib/py/utils.py create mode 100644 tools/testing/selftests/net/lib/py/ynl.py
diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile index e1504833654d..f533eb7054fe 100644 --- a/tools/testing/selftests/Makefile +++ b/tools/testing/selftests/Makefile @@ -116,6 +116,13 @@ TARGETS += zram TARGETS_HOTPLUG = cpu-hotplug TARGETS_HOTPLUG += memory-hotplug
+# Networking tests want the net/lib target, include it automatically +ifneq ($(filter net,$(TARGETS)),) +ifeq ($(filter net/lib,$(TARGETS)),) + INSTALL_DEP_TARGETS := net/lib +endif +endif + # User can optionally provide a TARGETS skiplist. By default we skip # BPF since it has cutting edge build time dependencies which require # more effort to install. @@ -245,7 +252,7 @@ ifdef INSTALL_PATH install -m 744 run_kselftest.sh $(INSTALL_PATH)/ rm -f $(TEST_LIST) @ret=1; \ - for TARGET in $(TARGETS); do \ + for TARGET in $(TARGETS) $(INSTALL_DEP_TARGETS); do \ BUILD_TARGET=$$BUILD/$$TARGET; \ $(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET install \ INSTALL_PATH=$(INSTALL_PATH)/$$TARGET \ diff --git a/tools/testing/selftests/net/lib/Makefile b/tools/testing/selftests/net/lib/Makefile new file mode 100644 index 000000000000..48557e6250dd --- /dev/null +++ b/tools/testing/selftests/net/lib/Makefile @@ -0,0 +1,8 @@ +# SPDX-License-Identifier: GPL-2.0 + +TEST_FILES := ../../../../../Documentation/netlink/specs +TEST_FILES += ../../../../net/ynl + +TEST_INCLUDES := $(wildcard py/*.py) + +include ../../lib.mk diff --git a/tools/testing/selftests/net/lib/py/__init__.py b/tools/testing/selftests/net/lib/py/__init__.py new file mode 100644 index 000000000000..7823b5c1f8d7 --- /dev/null +++ b/tools/testing/selftests/net/lib/py/__init__.py @@ -0,0 +1,6 @@ +# SPDX-License-Identifier: GPL-2.0 + +from .consts import KSRC +from .ksft import * +from .utils import * +from .ynl import NlError, YnlFamily, EthtoolFamily, NetdevFamily, RtnlFamily diff --git a/tools/testing/selftests/net/lib/py/consts.py b/tools/testing/selftests/net/lib/py/consts.py new file mode 100644 index 000000000000..f518ce79d82c --- /dev/null +++ b/tools/testing/selftests/net/lib/py/consts.py @@ -0,0 +1,9 @@ +# SPDX-License-Identifier: GPL-2.0 + +import sys +from pathlib import Path + +KSFT_DIR = (Path(__file__).parent / "../../..").resolve() +KSRC = (Path(__file__).parent / "../../../../../..").resolve() + +KSFT_MAIN_NAME = Path(sys.argv[0]).with_suffix("").name diff --git a/tools/testing/selftests/net/lib/py/ksft.py b/tools/testing/selftests/net/lib/py/ksft.py new file mode 100644 index 000000000000..c7210525981c --- /dev/null +++ b/tools/testing/selftests/net/lib/py/ksft.py @@ -0,0 +1,96 @@ +# SPDX-License-Identifier: GPL-2.0 + +import builtins +from .consts import KSFT_MAIN_NAME + +KSFT_RESULT = None + + +class KsftSkipEx(Exception): + pass + + +class KsftXfailEx(Exception): + pass + + +def ksft_pr(*objs, **kwargs): + print("#", *objs, **kwargs) + + +def ksft_eq(a, b, comment=""): + global KSFT_RESULT + if a != b: + KSFT_RESULT = False + ksft_pr("Check failed", a, "!=", b, comment) + + +def ksft_true(a, comment=""): + global KSFT_RESULT + if not a: + KSFT_RESULT = False + ksft_pr("Check failed", a, "does not eval to True", comment) + + +def ksft_in(a, b, comment=""): + global KSFT_RESULT + if a not in b: + KSFT_RESULT = False + ksft_pr("Check failed", a, "not in", b, comment) + + +def ksft_ge(a, b, comment=""): + global KSFT_RESULT + if a < b: + KSFT_RESULT = False + ksft_pr("Check failed", a, "<", b, comment) + + +def ktap_result(ok, cnt=1, case="", comment=""): + res = "" + if not ok: + res += "not " + res += "ok " + res += str(cnt) + " " + res += KSFT_MAIN_NAME + if case: + res += "." + str(case.__name__) + if comment: + res += " # " + comment + print(res) + + +def ksft_run(cases, args=()): + totals = {"pass": 0, "fail": 0, "skip": 0, "xfail": 0} + + print("KTAP version 1") + print("1.." + str(len(cases))) + + global KSFT_RESULT + cnt = 0 + for case in cases: + KSFT_RESULT = True + cnt += 1 + try: + case(*args) + except KsftSkipEx as e: + ktap_result(True, cnt, case, comment="SKIP " + str(e)) + totals['skip'] += 1 + continue + except KsftXfailEx as e: + ktap_result(True, cnt, case, comment="XFAIL " + str(e)) + totals['xfail'] += 1 + continue + except Exception as e: + for line in str(e).split('\n'): + ksft_pr("Exception|", line) + ktap_result(False, cnt, case) + totals['fail'] += 1 + continue + + ktap_result(KSFT_RESULT, cnt, case) + totals['pass'] += 1 + + print( + f"# Totals: pass:{totals['pass']} fail:{totals['fail']} xfail:{totals['xfail']} xpass:0 skip:{totals['skip']} error:0" + ) diff --git a/tools/testing/selftests/net/lib/py/utils.py b/tools/testing/selftests/net/lib/py/utils.py new file mode 100644 index 000000000000..f0d425731fd4 --- /dev/null +++ b/tools/testing/selftests/net/lib/py/utils.py @@ -0,0 +1,47 @@ +# SPDX-License-Identifier: GPL-2.0 + +import json as _json +import subprocess + +class cmd: + def __init__(self, comm, shell=True, fail=True, ns=None, background=False): + if ns: + if isinstance(ns, NetNS): + ns = ns.name + comm = f'ip netns exec {ns} ' + comm + + self.stdout = None + self.stderr = None + self.ret = None + + self.comm = comm + self.proc = subprocess.Popen(comm, shell=shell, stdout=subprocess.PIPE, + stderr=subprocess.PIPE) + if not background: + self.process(terminate=False, fail=fail) + + def process(self, terminate=True, fail=None): + if terminate: + self.proc.terminate() + stdout, stderr = self.proc.communicate() + self.stdout = stdout.decode("utf-8") + self.stderr = stderr.decode("utf-8") + self.proc.stdout.close() + self.proc.stderr.close() + self.ret = self.proc.returncode + + if self.proc.returncode != 0 and fail: + if len(stderr) > 0 and stderr[-1] == "\n": + stderr = stderr[:-1] + raise Exception("Command failed: %s\n%s" % (self.proc.args, stderr)) + + +def ip(args, json=None, ns=None): + cmd_str = "ip " + if json: + cmd_str += '-j ' + cmd_str += args + cmd_obj = cmd(cmd_str, ns=ns) + if json: + return _json.loads(cmd_obj.stdout) + return cmd_obj diff --git a/tools/testing/selftests/net/lib/py/ynl.py b/tools/testing/selftests/net/lib/py/ynl.py new file mode 100644 index 000000000000..1ace58370c06 --- /dev/null +++ b/tools/testing/selftests/net/lib/py/ynl.py @@ -0,0 +1,49 @@ +# SPDX-License-Identifier: GPL-2.0 + +import sys +from pathlib import Path +from .consts import KSRC, KSFT_DIR +from .ksft import ksft_pr, ktap_result + +# Resolve paths +try: + if (KSFT_DIR / "kselftest-list.txt").exists(): + # Running in "installed" selftests + tools_full_path = KSFT_DIR + SPEC_PATH = KSFT_DIR / "net/lib/specs" + + sys.path.append(tools_full_path.as_posix()) + from net.lib.ynl.lib import YnlFamily, NlError + else: + # Running in tree + tools_full_path = KSRC / "tools" + SPEC_PATH = KSRC / "Documentation/netlink/specs" + + sys.path.append(tools_full_path.as_posix()) + from net.ynl.lib import YnlFamily, NlError +except ModuleNotFoundError as e: + ksft_pr("Failed importing `ynl` library from kernel sources") + ksft_pr(str(e)) + ktap_result(True, comment="SKIP") + sys.exit(4) + +# +# Wrapper classes, loading the right specs +# Set schema='' to avoid jsonschema validation, it's slow +# +class EthtoolFamily(YnlFamily): + def __init__(self): + super().__init__((SPEC_PATH / Path('ethtool.yaml')).as_posix(), + schema='') + + +class RtnlFamily(YnlFamily): + def __init__(self): + super().__init__((SPEC_PATH / Path('rt_link.yaml')).as_posix(), + schema='') + + +class NetdevFamily(YnlFamily): + def __init__(self): + super().__init__((SPEC_PATH / Path('netdev.yaml')).as_posix(), + schema='')