mirror of
https://github.com/torvalds/linux.git
synced 2026-05-31 02:24:24 +02:00
selftests/bpf: drop test_bpftool.sh
The test_bpftool.sh script runs a python unittest script checking bpftool json output on different commands. As part of the ongoing effort to get rid of any standalone test, this script should either be converted to test_progs or removed. As validating bpftool json output does not bring much value to the test base (and because it would need test_progs to bring in a json parser), remove the standalone test script. Signed-off-by: Alexis Lothoré (eBPF Foundation) <alexis.lothore@bootlin.com> Acked-by: Quentin Monnet <qmo@kernel.org> Link: https://lore.kernel.org/r/20260227-bpftool_feature-v1-1-a25860fd52fb@bootlin.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Alexis Lothoré (eBPF Foundation)
Alexei Starovoitov
parent
b000044809
commit
7242b0951d
|
|
@ -111,14 +111,12 @@ TEST_PROGS := test_kmod.sh \
|
|||
test_lirc_mode2.sh \
|
||||
test_xdping.sh \
|
||||
test_bpftool_build.sh \
|
||||
test_bpftool.sh \
|
||||
test_doc_build.sh \
|
||||
test_xsk.sh \
|
||||
test_xdp_features.sh
|
||||
|
||||
TEST_PROGS_EXTENDED := \
|
||||
ima_setup.sh verify_sig_setup.sh \
|
||||
test_bpftool.py
|
||||
ima_setup.sh verify_sig_setup.sh
|
||||
|
||||
TEST_KMODS := bpf_testmod.ko bpf_test_no_cfi.ko bpf_test_modorder_x.ko \
|
||||
bpf_test_modorder_y.ko bpf_test_rqspinlock.ko
|
||||
|
|
|
|||
|
|
@ -1,174 +0,0 @@
|
|||
# SPDX-License-Identifier: GPL-2.0
|
||||
# Copyright (c) 2020 SUSE LLC.
|
||||
|
||||
import collections
|
||||
import functools
|
||||
import json
|
||||
import os
|
||||
import socket
|
||||
import subprocess
|
||||
import unittest
|
||||
|
||||
|
||||
# Add the source tree of bpftool and /usr/local/sbin to PATH
|
||||
cur_dir = os.path.dirname(os.path.realpath(__file__))
|
||||
bpftool_dir = os.path.abspath(os.path.join(cur_dir, "..", "..", "..", "..",
|
||||
"tools", "bpf", "bpftool"))
|
||||
os.environ["PATH"] = bpftool_dir + ":/usr/local/sbin:" + os.environ["PATH"]
|
||||
|
||||
|
||||
class IfaceNotFoundError(Exception):
|
||||
pass
|
||||
|
||||
|
||||
class UnprivilegedUserError(Exception):
|
||||
pass
|
||||
|
||||
|
||||
def _bpftool(args, json=True):
|
||||
_args = ["bpftool"]
|
||||
if json:
|
||||
_args.append("-j")
|
||||
_args.extend(args)
|
||||
|
||||
return subprocess.check_output(_args)
|
||||
|
||||
|
||||
def bpftool(args):
|
||||
return _bpftool(args, json=False).decode("utf-8")
|
||||
|
||||
|
||||
def bpftool_json(args):
|
||||
res = _bpftool(args)
|
||||
return json.loads(res)
|
||||
|
||||
|
||||
def get_default_iface():
|
||||
for iface in socket.if_nameindex():
|
||||
if iface[1] != "lo":
|
||||
return iface[1]
|
||||
raise IfaceNotFoundError("Could not find any network interface to probe")
|
||||
|
||||
|
||||
def default_iface(f):
|
||||
@functools.wraps(f)
|
||||
def wrapper(*args, **kwargs):
|
||||
iface = get_default_iface()
|
||||
return f(*args, iface, **kwargs)
|
||||
return wrapper
|
||||
|
||||
DMESG_EMITTING_HELPERS = [
|
||||
"bpf_probe_write_user",
|
||||
"bpf_trace_printk",
|
||||
"bpf_trace_vprintk",
|
||||
]
|
||||
|
||||
class TestBpftool(unittest.TestCase):
|
||||
@classmethod
|
||||
def setUpClass(cls):
|
||||
if os.getuid() != 0:
|
||||
raise UnprivilegedUserError(
|
||||
"This test suite needs root privileges")
|
||||
|
||||
@default_iface
|
||||
def test_feature_dev_json(self, iface):
|
||||
unexpected_helpers = DMESG_EMITTING_HELPERS
|
||||
expected_keys = [
|
||||
"syscall_config",
|
||||
"program_types",
|
||||
"map_types",
|
||||
"helpers",
|
||||
"misc",
|
||||
]
|
||||
|
||||
res = bpftool_json(["feature", "probe", "dev", iface])
|
||||
# Check if the result has all expected keys.
|
||||
self.assertCountEqual(res.keys(), expected_keys)
|
||||
# Check if unexpected helpers are not included in helpers probes
|
||||
# result.
|
||||
for helpers in res["helpers"].values():
|
||||
for unexpected_helper in unexpected_helpers:
|
||||
self.assertNotIn(unexpected_helper, helpers)
|
||||
|
||||
def test_feature_kernel(self):
|
||||
test_cases = [
|
||||
bpftool_json(["feature", "probe", "kernel"]),
|
||||
bpftool_json(["feature", "probe"]),
|
||||
bpftool_json(["feature"]),
|
||||
]
|
||||
unexpected_helpers = DMESG_EMITTING_HELPERS
|
||||
expected_keys = [
|
||||
"syscall_config",
|
||||
"system_config",
|
||||
"program_types",
|
||||
"map_types",
|
||||
"helpers",
|
||||
"misc",
|
||||
]
|
||||
|
||||
for tc in test_cases:
|
||||
# Check if the result has all expected keys.
|
||||
self.assertCountEqual(tc.keys(), expected_keys)
|
||||
# Check if unexpected helpers are not included in helpers probes
|
||||
# result.
|
||||
for helpers in tc["helpers"].values():
|
||||
for unexpected_helper in unexpected_helpers:
|
||||
self.assertNotIn(unexpected_helper, helpers)
|
||||
|
||||
def test_feature_kernel_full(self):
|
||||
test_cases = [
|
||||
bpftool_json(["feature", "probe", "kernel", "full"]),
|
||||
bpftool_json(["feature", "probe", "full"]),
|
||||
]
|
||||
expected_helpers = DMESG_EMITTING_HELPERS
|
||||
|
||||
for tc in test_cases:
|
||||
# Check if expected helpers are included at least once in any
|
||||
# helpers list for any program type. Unfortunately we cannot assume
|
||||
# that they will be included in all program types or a specific
|
||||
# subset of programs. It depends on the kernel version and
|
||||
# configuration.
|
||||
found_helpers = False
|
||||
|
||||
for helpers in tc["helpers"].values():
|
||||
if all(expected_helper in helpers
|
||||
for expected_helper in expected_helpers):
|
||||
found_helpers = True
|
||||
break
|
||||
|
||||
self.assertTrue(found_helpers)
|
||||
|
||||
def test_feature_kernel_full_vs_not_full(self):
|
||||
full_res = bpftool_json(["feature", "probe", "full"])
|
||||
not_full_res = bpftool_json(["feature", "probe"])
|
||||
not_full_set = set()
|
||||
full_set = set()
|
||||
|
||||
for helpers in full_res["helpers"].values():
|
||||
for helper in helpers:
|
||||
full_set.add(helper)
|
||||
|
||||
for helpers in not_full_res["helpers"].values():
|
||||
for helper in helpers:
|
||||
not_full_set.add(helper)
|
||||
|
||||
self.assertCountEqual(full_set - not_full_set,
|
||||
set(DMESG_EMITTING_HELPERS))
|
||||
self.assertCountEqual(not_full_set - full_set, set())
|
||||
|
||||
def test_feature_macros(self):
|
||||
expected_patterns = [
|
||||
r"/\*\*\* System call availability \*\*\*/",
|
||||
r"#define HAVE_BPF_SYSCALL",
|
||||
r"/\*\*\* eBPF program types \*\*\*/",
|
||||
r"#define HAVE.*PROG_TYPE",
|
||||
r"/\*\*\* eBPF map types \*\*\*/",
|
||||
r"#define HAVE.*MAP_TYPE",
|
||||
r"/\*\*\* eBPF helper functions \*\*\*/",
|
||||
r"#define HAVE.*HELPER",
|
||||
r"/\*\*\* eBPF misc features \*\*\*/",
|
||||
]
|
||||
|
||||
res = bpftool(["feature", "probe", "macros"])
|
||||
for pattern in expected_patterns:
|
||||
self.assertRegex(res, pattern)
|
||||
|
|
@ -1,11 +0,0 @@
|
|||
#!/bin/bash
|
||||
# SPDX-License-Identifier: GPL-2.0
|
||||
# Copyright (c) 2020 SUSE LLC.
|
||||
|
||||
# 'make -C tools/testing/selftests/bpf install' will install to SCRIPT_DIR
|
||||
SCRIPT_DIR=$(dirname $(realpath $0))
|
||||
|
||||
# 'make -C tools/testing/selftests/bpf' will install to BPFTOOL_INSTALL_PATH
|
||||
BPFTOOL_INSTALL_PATH="$SCRIPT_DIR"/tools/sbin
|
||||
export PATH=$SCRIPT_DIR:$BPFTOOL_INSTALL_PATH:$PATH
|
||||
python3 -m unittest -v test_bpftool.TestBpftool
|
||||
Loading…
Reference in New Issue
Block a user