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1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 | #!/usr/bin/env python3 # Copyright (C) 2017 Netronome Systems, Inc. # Copyright (c) 2019 Mellanox Technologies. All rights reserved # # This software is licensed under the GNU General License Version 2, # June 1991 as shown in the file COPYING in the top-level directory of this # source tree. # # THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" # WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, # BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS # FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE # OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME # THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. from datetime import datetime import argparse import errno import json import os import pprint import random import re import stat import string import struct import subprocess import time import traceback logfile = None log_level = 1 skip_extack = False bpf_test_dir = os.path.dirname(os.path.realpath(__file__)) pp = pprint.PrettyPrinter() devs = [] # devices we created for clean up files = [] # files to be removed netns = [] # net namespaces to be removed def log_get_sec(level=0): return "*" * (log_level + level) def log_level_inc(add=1): global log_level log_level += add def log_level_dec(sub=1): global log_level log_level -= sub def log_level_set(level): global log_level log_level = level def log(header, data, level=None): """ Output to an optional log. """ if logfile is None: return if level is not None: log_level_set(level) if not isinstance(data, str): data = pp.pformat(data) if len(header): logfile.write("\n" + log_get_sec() + " ") logfile.write(header) if len(header) and len(data.strip()): logfile.write("\n") logfile.write(data) def skip(cond, msg): if not cond: return print("SKIP: " + msg) log("SKIP: " + msg, "", level=1) os.sys.exit(0) def fail(cond, msg): if not cond: return print("FAIL: " + msg) tb = "".join(traceback.extract_stack().format()) print(tb) log("FAIL: " + msg, tb, level=1) os.sys.exit(1) def start_test(msg): log(msg, "", level=1) log_level_inc() print(msg) def cmd(cmd, shell=True, include_stderr=False, background=False, fail=True): """ Run a command in subprocess and return tuple of (retval, stdout); optionally return stderr as well as third value. """ proc = subprocess.Popen(cmd, shell=shell, stdout=subprocess.PIPE, stderr=subprocess.PIPE) if background: msg = "%s START: %s" % (log_get_sec(1), datetime.now().strftime("%H:%M:%S.%f")) log("BKG " + proc.args, msg) return proc return cmd_result(proc, include_stderr=include_stderr, fail=fail) def cmd_result(proc, include_stderr=False, fail=False): stdout, stderr = proc.communicate() stdout = stdout.decode("utf-8") stderr = stderr.decode("utf-8") proc.stdout.close() proc.stderr.close() stderr = "\n" + stderr if stderr[-1] == "\n": stderr = stderr[:-1] sec = log_get_sec(1) log("CMD " + proc.args, "RETCODE: %d\n%s STDOUT:\n%s%s STDERR:%s\n%s END: %s" % (proc.returncode, sec, stdout, sec, stderr, sec, datetime.now().strftime("%H:%M:%S.%f"))) if proc.returncode != 0 and fail: if len(stderr) > 0 and stderr[-1] == "\n": stderr = stderr[:-1] raise Exception("Command failed: %s\n%s" % (proc.args, stderr)) if include_stderr: return proc.returncode, stdout, stderr else: return proc.returncode, stdout def rm(f): cmd("rm -f %s" % (f)) if f in files: files.remove(f) def tool(name, args, flags, JSON=True, ns="", fail=True, include_stderr=False): params = "" if JSON: params += "%s " % (flags["json"]) if ns != "": ns = "ip netns exec %s " % (ns) if include_stderr: ret, stdout, stderr = cmd(ns + name + " " + params + args, fail=fail, include_stderr=True) else: ret, stdout = cmd(ns + name + " " + params + args, fail=fail, include_stderr=False) if JSON and len(stdout.strip()) != 0: out = json.loads(stdout) else: out = stdout if include_stderr: return ret, out, stderr else: return ret, out def bpftool(args, JSON=True, ns="", fail=True, include_stderr=False): return tool("bpftool", args, {"json":"-p"}, JSON=JSON, ns=ns, fail=fail, include_stderr=include_stderr) def bpftool_prog_list(expected=None, ns=""): _, progs = bpftool("prog show", JSON=True, ns=ns, fail=True) # Remove the base progs for p in base_progs: if p in progs: progs.remove(p) if expected is not None: if len(progs) != expected: fail(True, "%d BPF programs loaded, expected %d" % (len(progs), expected)) return progs def bpftool_map_list(expected=None, ns=""): _, maps = bpftool("map show", JSON=True, ns=ns, fail=True) # Remove the base maps maps = [m for m in maps if m not in base_maps and m.get('name') and m.get('name') not in base_map_names] if expected is not None: if len(maps) != expected: fail(True, "%d BPF maps loaded, expected %d" % (len(maps), expected)) return maps def bpftool_prog_list_wait(expected=0, n_retry=20): for i in range(n_retry): nprogs = len(bpftool_prog_list()) if nprogs == expected: return time.sleep(0.05) raise Exception("Time out waiting for program counts to stabilize want %d, have %d" % (expected, nprogs)) def bpftool_map_list_wait(expected=0, n_retry=20): for i in range(n_retry): nmaps = len(bpftool_map_list()) if nmaps == expected: return time.sleep(0.05) raise Exception("Time out waiting for map counts to stabilize want %d, have %d" % (expected, nmaps)) def bpftool_prog_load(sample, file_name, maps=[], prog_type="xdp", dev=None, fail=True, include_stderr=False): args = "prog load %s %s" % (os.path.join(bpf_test_dir, sample), file_name) if prog_type is not None: args += " type " + prog_type if dev is not None: args += " dev " + dev if len(maps): args += " map " + " map ".join(maps) res = bpftool(args, fail=fail, include_stderr=include_stderr) if res[0] == 0: files.append(file_name) return res def ip(args, force=False, JSON=True, ns="", fail=True, include_stderr=False): if force: args = "-force " + args return tool("ip", args, {"json":"-j"}, JSON=JSON, ns=ns, fail=fail, include_stderr=include_stderr) def tc(args, JSON=True, ns="", fail=True, include_stderr=False): return tool("tc", args, {"json":"-p"}, JSON=JSON, ns=ns, fail=fail, include_stderr=include_stderr) def ethtool(dev, opt, args, fail=True): return cmd("ethtool %s %s %s" % (opt, dev["ifname"], args), fail=fail) def bpf_obj(name, sec=".text", path=bpf_test_dir,): return "obj %s sec %s" % (os.path.join(path, name), sec) def bpf_pinned(name): return "pinned %s" % (name) def bpf_bytecode(bytecode): return "bytecode \"%s\"" % (bytecode) def mknetns(n_retry=10): for i in range(n_retry): name = ''.join([random.choice(string.ascii_letters) for i in range(8)]) ret, _ = ip("netns add %s" % (name), fail=False) if ret == 0: netns.append(name) return name return None def int2str(fmt, val): ret = [] for b in struct.pack(fmt, val): ret.append(int(b)) return " ".join(map(lambda x: str(x), ret)) def str2int(strtab): inttab = [] for i in strtab: inttab.append(int(i, 16)) ba = bytearray(inttab) if len(strtab) == 4: fmt = "I" elif len(strtab) == 8: fmt = "Q" else: raise Exception("String array of len %d can't be unpacked to an int" % (len(strtab))) return struct.unpack(fmt, ba)[0] class DebugfsDir: """ Class for accessing DebugFS directories as a dictionary. """ def __init__(self, path): self.path = path self._dict = self._debugfs_dir_read(path) def __len__(self): return len(self._dict.keys()) def __getitem__(self, key): if type(key) is int: key = list(self._dict.keys())[key] return self._dict[key] def __setitem__(self, key, value): log("DebugFS set %s = %s" % (key, value), "") log_level_inc() cmd("echo '%s' > %s/%s" % (value, self.path, key)) log_level_dec() _, out = cmd('cat %s/%s' % (self.path, key)) self._dict[key] = out.strip() def _debugfs_dir_read(self, path): dfs = {} log("DebugFS state for %s" % (path), "") log_level_inc(add=2) _, out = cmd('ls ' + path) for f in out.split(): if f == "ports": continue p = os.path.join(path, f) if not os.stat(p).st_mode & stat.S_IRUSR: continue if os.path.isfile(p): # We need to init trap_flow_action_cookie before read it if f == "trap_flow_action_cookie": cmd('echo deadbeef > %s/%s' % (path, f)) _, out = cmd('cat %s/%s' % (path, f)) dfs[f] = out.strip() elif os.path.isdir(p): dfs[f] = DebugfsDir(p) else: raise Exception("%s is neither file nor directory" % (p)) log_level_dec() log("DebugFS state", dfs) log_level_dec() return dfs class NetdevSimDev: """ Class for netdevsim bus device and its attributes. """ @staticmethod def ctrl_write(path, val): fullpath = os.path.join("/sys/bus/netdevsim/", path) try: with open(fullpath, "w") as f: f.write(val) except OSError as e: log("WRITE %s: %r" % (fullpath, val), -e.errno) raise e log("WRITE %s: %r" % (fullpath, val), 0) def __init__(self, port_count=1): addr = 0 while True: try: self.ctrl_write("new_device", "%u %u" % (addr, port_count)) except OSError as e: if e.errno == errno.ENOSPC: addr += 1 continue raise e break self.addr = addr # As probe of netdevsim device might happen from a workqueue, # so wait here until all netdevs appear. self.wait_for_netdevs(port_count) ret, out = cmd("udevadm settle", fail=False) if ret: raise Exception("udevadm settle failed") ifnames = self.get_ifnames() devs.append(self) self.dfs_dir = "/sys/kernel/debug/netdevsim/netdevsim%u/" % addr self.nsims = [] for port_index in range(port_count): self.nsims.append(NetdevSim(self, port_index, ifnames[port_index])) def get_ifnames(self): ifnames = [] listdir = os.listdir("/sys/bus/netdevsim/devices/netdevsim%u/net/" % self.addr) for ifname in listdir: ifnames.append(ifname) ifnames.sort() return ifnames def wait_for_netdevs(self, port_count): timeout = 5 timeout_start = time.time() while True: try: ifnames = self.get_ifnames() except FileNotFoundError as e: ifnames = [] if len(ifnames) == port_count: break if time.time() < timeout_start + timeout: continue raise Exception("netdevices did not appear within timeout") def dfs_num_bound_progs(self): path = os.path.join(self.dfs_dir, "bpf_bound_progs") _, progs = cmd('ls %s' % (path)) return len(progs.split()) def dfs_get_bound_progs(self, expected): progs = DebugfsDir(os.path.join(self.dfs_dir, "bpf_bound_progs")) if expected is not None: if len(progs) != expected: fail(True, "%d BPF programs bound, expected %d" % (len(progs), expected)) return progs def remove(self): self.ctrl_write("del_device", "%u" % (self.addr, )) devs.remove(self) def remove_nsim(self, nsim): self.nsims.remove(nsim) self.ctrl_write("devices/netdevsim%u/del_port" % (self.addr, ), "%u" % (nsim.port_index, )) class NetdevSim: """ Class for netdevsim netdevice and its attributes. """ def __init__(self, nsimdev, port_index, ifname): # In case udev renamed the netdev to according to new schema, # check if the name matches the port_index. nsimnamere = re.compile("eni\d+np(\d+)") match = nsimnamere.match(ifname) if match and int(match.groups()[0]) != port_index + 1: raise Exception("netdevice name mismatches the expected one") self.nsimdev = nsimdev self.port_index = port_index self.ns = "" self.dfs_dir = "%s/ports/%u/" % (nsimdev.dfs_dir, port_index) self.dfs_refresh() _, [self.dev] = ip("link show dev %s" % ifname) def __getitem__(self, key): return self.dev[key] def remove(self): self.nsimdev.remove_nsim(self) def dfs_refresh(self): self.dfs = DebugfsDir(self.dfs_dir) return self.dfs def dfs_read(self, f): path = os.path.join(self.dfs_dir, f) _, data = cmd('cat %s' % (path)) return data.strip() def wait_for_flush(self, bound=0, total=0, n_retry=20): for i in range(n_retry): nbound = self.nsimdev.dfs_num_bound_progs() nprogs = len(bpftool_prog_list()) if nbound == bound and nprogs == total: return time.sleep(0.05) raise Exception("Time out waiting for program counts to stabilize want %d/%d, have %d bound, %d loaded" % (bound, total, nbound, nprogs)) def set_ns(self, ns): name = "1" if ns == "" else ns ip("link set dev %s netns %s" % (self.dev["ifname"], name), ns=self.ns) self.ns = ns def set_mtu(self, mtu, fail=True): return ip("link set dev %s mtu %d" % (self.dev["ifname"], mtu), fail=fail) def set_xdp(self, bpf, mode, force=False, JSON=True, verbose=False, fail=True, include_stderr=False): if verbose: bpf += " verbose" return ip("link set dev %s xdp%s %s" % (self.dev["ifname"], mode, bpf), force=force, JSON=JSON, fail=fail, include_stderr=include_stderr) def unset_xdp(self, mode, force=False, JSON=True, fail=True, include_stderr=False): return ip("link set dev %s xdp%s off" % (self.dev["ifname"], mode), force=force, JSON=JSON, fail=fail, include_stderr=include_stderr) def ip_link_show(self, xdp): _, link = ip("link show dev %s" % (self['ifname'])) if len(link) > 1: raise Exception("Multiple objects on ip link show") if len(link) < 1: return {} fail(xdp != "xdp" in link, "XDP program not reporting in iplink (reported %s, expected %s)" % ("xdp" in link, xdp)) return link[0] def tc_add_ingress(self): tc("qdisc add dev %s ingress" % (self['ifname'])) def tc_del_ingress(self): tc("qdisc del dev %s ingress" % (self['ifname'])) def tc_flush_filters(self, bound=0, total=0): self.tc_del_ingress() self.tc_add_ingress() self.wait_for_flush(bound=bound, total=total) def tc_show_ingress(self, expected=None): # No JSON support, oh well... flags = ["skip_sw", "skip_hw", "in_hw"] named = ["protocol", "pref", "chain", "handle", "id", "tag"] args = "-s filter show dev %s ingress" % (self['ifname']) _, out = tc(args, JSON=False) filters = [] lines = out.split('\n') for line in lines: words = line.split() if "handle" not in words: continue fltr = {} for flag in flags: fltr[flag] = flag in words for name in named: try: idx = words.index(name) fltr[name] = words[idx + 1] except ValueError: pass filters.append(fltr) if expected is not None: fail(len(filters) != expected, "%d ingress filters loaded, expected %d" % (len(filters), expected)) return filters def cls_filter_op(self, op, qdisc="ingress", prio=None, handle=None, chain=None, cls="", params="", fail=True, include_stderr=False): spec = "" if prio is not None: spec += " prio %d" % (prio) if handle: spec += " handle %s" % (handle) if chain is not None: spec += " chain %d" % (chain) return tc("filter {op} dev {dev} {qdisc} {spec} {cls} {params}"\ .format(op=op, dev=self['ifname'], qdisc=qdisc, spec=spec, cls=cls, params=params), fail=fail, include_stderr=include_stderr) def cls_bpf_add_filter(self, bpf, op="add", prio=None, handle=None, chain=None, da=False, verbose=False, skip_sw=False, skip_hw=False, fail=True, include_stderr=False): cls = "bpf " + bpf params = "" if da: params += " da" if verbose: params += " verbose" if skip_sw: params += " skip_sw" if skip_hw: params += " skip_hw" return self.cls_filter_op(op=op, prio=prio, handle=handle, cls=cls, chain=chain, params=params, fail=fail, include_stderr=include_stderr) def set_ethtool_tc_offloads(self, enable, fail=True): args = "hw-tc-offload %s" % ("on" if enable else "off") return ethtool(self, "-K", args, fail=fail) ################################################################################ def clean_up(): global files, netns, devs for dev in devs: dev.remove() for f in files: cmd("rm -f %s" % (f)) for ns in netns: cmd("ip netns delete %s" % (ns)) files = [] netns = [] def pin_prog(file_name, idx=0): progs = bpftool_prog_list(expected=(idx + 1)) prog = progs[idx] bpftool("prog pin id %d %s" % (prog["id"], file_name)) files.append(file_name) return file_name, bpf_pinned(file_name) def pin_map(file_name, idx=0, expected=1): maps = bpftool_map_list(expected=expected) m = maps[idx] bpftool("map pin id %d %s" % (m["id"], file_name)) files.append(file_name) return file_name, bpf_pinned(file_name) def check_dev_info_removed(prog_file=None, map_file=None): bpftool_prog_list(expected=0) ret, err = bpftool("prog show pin %s" % (prog_file), fail=False) fail(ret == 0, "Showing prog with removed device did not fail") fail(err["error"].find("No such device") == -1, "Showing prog with removed device expected ENODEV, error is %s" % (err["error"])) bpftool_map_list(expected=0) ret, err = bpftool("map show pin %s" % (map_file), fail=False) fail(ret == 0, "Showing map with removed device did not fail") fail(err["error"].find("No such device") == -1, "Showing map with removed device expected ENODEV, error is %s" % (err["error"])) def check_dev_info(other_ns, ns, prog_file=None, map_file=None, removed=False): progs = bpftool_prog_list(expected=1, ns=ns) prog = progs[0] fail("dev" not in prog.keys(), "Device parameters not reported") dev = prog["dev"] fail("ifindex" not in dev.keys(), "Device parameters not reported") fail("ns_dev" not in dev.keys(), "Device parameters not reported") fail("ns_inode" not in dev.keys(), "Device parameters not reported") if not other_ns: fail("ifname" not in dev.keys(), "Ifname not reported") fail(dev["ifname"] != sim["ifname"], "Ifname incorrect %s vs %s" % (dev["ifname"], sim["ifname"])) else: fail("ifname" in dev.keys(), "Ifname is reported for other ns") maps = bpftool_map_list(expected=2, ns=ns) for m in maps: fail("dev" not in m.keys(), "Device parameters not reported") fail(dev != m["dev"], "Map's device different than program's") def check_extack(output, reference, args): if skip_extack: return lines = output.split("\n") comp = len(lines) >= 2 and lines[1] == 'Error: ' + reference fail(not comp, "Missing or incorrect netlink extack message") def check_extack_nsim(output, reference, args): check_extack(output, "netdevsim: " + reference, args) def check_no_extack(res, needle): fail((res[1] + res[2]).count(needle) or (res[1] + res[2]).count("Warning:"), "Found '%s' in command output, leaky extack?" % (needle)) def check_verifier_log(output, reference): lines = output.split("\n") for l in reversed(lines): if l == reference: return fail(True, "Missing or incorrect message from netdevsim in verifier log") def check_multi_basic(two_xdps): fail(two_xdps["mode"] != 4, "Bad mode reported with multiple programs") fail("prog" in two_xdps, "Base program reported in multi program mode") fail(len(two_xdps["attached"]) != 2, "Wrong attached program count with two programs") fail(two_xdps["attached"][0]["prog"]["id"] == two_xdps["attached"][1]["prog"]["id"], "Offloaded and other programs have the same id") def test_spurios_extack(sim, obj, skip_hw, needle): res = sim.cls_bpf_add_filter(obj, prio=1, handle=1, skip_hw=skip_hw, include_stderr=True) check_no_extack(res, needle) res = sim.cls_bpf_add_filter(obj, op="replace", prio=1, handle=1, skip_hw=skip_hw, include_stderr=True) check_no_extack(res, needle) res = sim.cls_filter_op(op="delete", prio=1, handle=1, cls="bpf", include_stderr=True) check_no_extack(res, needle) def test_multi_prog(simdev, sim, obj, modename, modeid): start_test("Test multi-attachment XDP - %s + offload..." % (modename or "default", )) sim.set_xdp(obj, "offload") xdp = sim.ip_link_show(xdp=True)["xdp"] offloaded = sim.dfs_read("bpf_offloaded_id") fail("prog" not in xdp, "Base program not reported in single program mode") fail(len(xdp["attached"]) != 1, "Wrong attached program count with one program") sim.set_xdp(obj, modename) two_xdps = sim.ip_link_show(xdp=True)["xdp"] fail(xdp["attached"][0] not in two_xdps["attached"], "Offload program not reported after other activated") check_multi_basic(two_xdps) offloaded2 = sim.dfs_read("bpf_offloaded_id") fail(offloaded != offloaded2, "Offload ID changed after loading other program") start_test("Test multi-attachment XDP - replace...") ret, _, err = sim.set_xdp(obj, "offload", fail=False, include_stderr=True) fail(ret == 0, "Replaced one of programs without -force") check_extack(err, "XDP program already attached.", args) start_test("Test multi-attachment XDP - remove without mode...") ret, _, err = sim.unset_xdp("", force=True, fail=False, include_stderr=True) fail(ret == 0, "Removed program without a mode flag") check_extack(err, "More than one program loaded, unset mode is ambiguous.", args) sim.unset_xdp("offload") xdp = sim.ip_link_show(xdp=True)["xdp"] offloaded = sim.dfs_read("bpf_offloaded_id") fail(xdp["mode"] != modeid, "Bad mode reported after multiple programs") fail("prog" not in xdp, "Base program not reported after multi program mode") fail(xdp["attached"][0] not in two_xdps["attached"], "Offload program not reported after other activated") fail(len(xdp["attached"]) != 1, "Wrong attached program count with remaining programs") fail(offloaded != "0", "Offload ID reported with only other program left") start_test("Test multi-attachment XDP - reattach...") sim.set_xdp(obj, "offload") two_xdps = sim.ip_link_show(xdp=True)["xdp"] fail(xdp["attached"][0] not in two_xdps["attached"], "Other program not reported after offload activated") check_multi_basic(two_xdps) start_test("Test multi-attachment XDP - device remove...") simdev.remove() simdev = NetdevSimDev() sim, = simdev.nsims sim.set_ethtool_tc_offloads(True) return [simdev, sim] # Parse command line parser = argparse.ArgumentParser() parser.add_argument("--log", help="output verbose log to given file") args = parser.parse_args() if args.log: logfile = open(args.log, 'w+') logfile.write("# -*-Org-*-") log("Prepare...", "", level=1) log_level_inc() # Check permissions skip(os.getuid() != 0, "test must be run as root") # Check tools ret, progs = bpftool("prog", fail=False) skip(ret != 0, "bpftool not installed") base_progs = progs _, base_maps = bpftool("map") base_map_names = [ 'pid_iter.rodata' # created on each bpftool invocation ] # Check netdevsim ret, out = cmd("modprobe netdevsim", fail=False) skip(ret != 0, "netdevsim module could not be loaded") # Check debugfs _, out = cmd("mount") if out.find("/sys/kernel/debug type debugfs") == -1: cmd("mount -t debugfs none /sys/kernel/debug") # Check samples are compiled samples = ["sample_ret0.bpf.o", "sample_map_ret0.bpf.o"] for s in samples: ret, out = cmd("ls %s/%s" % (bpf_test_dir, s), fail=False) skip(ret != 0, "sample %s/%s not found, please compile it" % (bpf_test_dir, s)) # Check if iproute2 is built with libmnl (needed by extack support) _, _, err = cmd("tc qdisc delete dev lo handle 0", fail=False, include_stderr=True) if err.find("Error: Failed to find qdisc with specified handle.") == -1: print("Warning: no extack message in iproute2 output, libmnl missing?") log("Warning: no extack message in iproute2 output, libmnl missing?", "") skip_extack = True # Check if net namespaces seem to work ns = mknetns() skip(ns is None, "Could not create a net namespace") cmd("ip netns delete %s" % (ns)) netns = [] try: obj = bpf_obj("sample_ret0.bpf.o") bytecode = bpf_bytecode("1,6 0 0 4294967295,") start_test("Test destruction of generic XDP...") simdev = NetdevSimDev() sim, = simdev.nsims sim.set_xdp(obj, "generic") simdev.remove() bpftool_prog_list_wait(expected=0) simdev = NetdevSimDev() sim, = simdev.nsims sim.tc_add_ingress() start_test("Test TC non-offloaded...") ret, _ = sim.cls_bpf_add_filter(obj, skip_hw=True, fail=False) fail(ret != 0, "Software TC filter did not load") start_test("Test TC non-offloaded isn't getting bound...") ret, _ = sim.cls_bpf_add_filter(obj, fail=False) fail(ret != 0, "Software TC filter did not load") simdev.dfs_get_bound_progs(expected=0) sim.tc_flush_filters() start_test("Test TC offloads are off by default...") ret, _, err = sim.cls_bpf_add_filter(obj, skip_sw=True, fail=False, include_stderr=True) fail(ret == 0, "TC filter loaded without enabling TC offloads") check_extack(err, "TC offload is disabled on net device.", args) sim.wait_for_flush() sim.set_ethtool_tc_offloads(True) sim.dfs["bpf_tc_non_bound_accept"] = "Y" start_test("Test TC offload by default...") ret, _ = sim.cls_bpf_add_filter(obj, fail=False) fail(ret != 0, "Software TC filter did not load") simdev.dfs_get_bound_progs(expected=0) ingress = sim.tc_show_ingress(expected=1) fltr = ingress[0] fail(not fltr["in_hw"], "Filter not offloaded by default") sim.tc_flush_filters() start_test("Test TC cBPF bytcode tries offload by default...") ret, _ = sim.cls_bpf_add_filter(bytecode, fail=False) fail(ret != 0, "Software TC filter did not load") simdev.dfs_get_bound_progs(expected=0) ingress = sim.tc_show_ingress(expected=1) fltr = ingress[0] fail(not fltr["in_hw"], "Bytecode not offloaded by default") sim.tc_flush_filters() sim.dfs["bpf_tc_non_bound_accept"] = "N" start_test("Test TC cBPF unbound bytecode doesn't offload...") ret, _, err = sim.cls_bpf_add_filter(bytecode, skip_sw=True, fail=False, include_stderr=True) fail(ret == 0, "TC bytecode loaded for offload") check_extack_nsim(err, "netdevsim configured to reject unbound programs.", args) sim.wait_for_flush() start_test("Test non-0 chain offload...") ret, _, err = sim.cls_bpf_add_filter(obj, chain=1, prio=1, handle=1, skip_sw=True, fail=False, include_stderr=True) fail(ret == 0, "Offloaded a filter to chain other than 0") check_extack(err, "Driver supports only offload of chain 0.", args) sim.tc_flush_filters() start_test("Test TC replace...") sim.cls_bpf_add_filter(obj, prio=1, handle=1) sim.cls_bpf_add_filter(obj, op="replace", prio=1, handle=1) sim.cls_filter_op(op="delete", prio=1, handle=1, cls="bpf") sim.cls_bpf_add_filter(obj, prio=1, handle=1, skip_sw=True) sim.cls_bpf_add_filter(obj, op="replace", prio=1, handle=1, skip_sw=True) sim.cls_filter_op(op="delete", prio=1, handle=1, cls="bpf") sim.cls_bpf_add_filter(obj, prio=1, handle=1, skip_hw=True) sim.cls_bpf_add_filter(obj, op="replace", prio=1, handle=1, skip_hw=True) sim.cls_filter_op(op="delete", prio=1, handle=1, cls="bpf") start_test("Test TC replace bad flags...") for i in range(3): for j in range(3): ret, _ = sim.cls_bpf_add_filter(obj, op="replace", prio=1, handle=1, skip_sw=(j == 1), skip_hw=(j == 2), fail=False) fail(bool(ret) != bool(j), "Software TC incorrect load in replace test, iteration %d" % (j)) sim.cls_filter_op(op="delete", prio=1, handle=1, cls="bpf") start_test("Test spurious extack from the driver...") test_spurios_extack(sim, obj, False, "netdevsim") test_spurios_extack(sim, obj, True, "netdevsim") sim.set_ethtool_tc_offloads(False) test_spurios_extack(sim, obj, False, "TC offload is disabled") test_spurios_extack(sim, obj, True, "TC offload is disabled") sim.set_ethtool_tc_offloads(True) sim.tc_flush_filters() start_test("Test TC offloads failure...") sim.dfs["dev/bpf_bind_verifier_accept"] = 0 ret, _, err = sim.cls_bpf_add_filter(obj, verbose=True, skip_sw=True, fail=False, include_stderr=True) fail(ret == 0, "TC filter did not reject with TC offloads enabled") check_verifier_log(err, "[netdevsim] Hello from netdevsim!") sim.dfs["dev/bpf_bind_verifier_accept"] = 1 start_test("Test TC offloads work...") ret, _, err = sim.cls_bpf_add_filter(obj, verbose=True, skip_sw=True, fail=False, include_stderr=True) fail(ret != 0, "TC filter did not load with TC offloads enabled") start_test("Test TC offload basics...") dfs = simdev.dfs_get_bound_progs(expected=1) progs = bpftool_prog_list(expected=1) ingress = sim.tc_show_ingress(expected=1) dprog = dfs[0] prog = progs[0] fltr = ingress[0] fail(fltr["skip_hw"], "TC does reports 'skip_hw' on offloaded filter") fail(not fltr["in_hw"], "TC does not report 'in_hw' for offloaded filter") fail(not fltr["skip_sw"], "TC does not report 'skip_sw' back") start_test("Test TC offload is device-bound...") fail(str(prog["id"]) != fltr["id"], "Program IDs don't match") fail(prog["tag"] != fltr["tag"], "Program tags don't match") fail(fltr["id"] != dprog["id"], "Program IDs don't match") fail(dprog["state"] != "xlated", "Offloaded program state not translated") fail(dprog["loaded"] != "Y", "Offloaded program is not loaded") start_test("Test disabling TC offloads is rejected while filters installed...") ret, _ = sim.set_ethtool_tc_offloads(False, fail=False) fail(ret == 0, "Driver should refuse to disable TC offloads with filters installed...") sim.set_ethtool_tc_offloads(True) start_test("Test qdisc removal frees things...") sim.tc_flush_filters() sim.tc_show_ingress(expected=0) start_test("Test disabling TC offloads is OK without filters...") ret, _ = sim.set_ethtool_tc_offloads(False, fail=False) fail(ret != 0, "Driver refused to disable TC offloads without filters installed...") sim.set_ethtool_tc_offloads(True) start_test("Test destroying device gets rid of TC filters...") sim.cls_bpf_add_filter(obj, skip_sw=True) simdev.remove() bpftool_prog_list_wait(expected=0) simdev = NetdevSimDev() sim, = simdev.nsims sim.set_ethtool_tc_offloads(True) start_test("Test destroying device gets rid of XDP...") sim.set_xdp(obj, "offload") simdev.remove() bpftool_prog_list_wait(expected=0) simdev = NetdevSimDev() sim, = simdev.nsims sim.set_ethtool_tc_offloads(True) start_test("Test XDP prog reporting...") sim.set_xdp(obj, "drv") ipl = sim.ip_link_show(xdp=True) progs = bpftool_prog_list(expected=1) fail(ipl["xdp"]["prog"]["id"] != progs[0]["id"], "Loaded program has wrong ID") start_test("Test XDP prog replace without force...") ret, _ = sim.set_xdp(obj, "drv", fail=False) fail(ret == 0, "Replaced XDP program without -force") sim.wait_for_flush(total=1) start_test("Test XDP prog replace with force...") ret, _ = sim.set_xdp(obj, "drv", force=True, fail=False) fail(ret != 0, "Could not replace XDP program with -force") bpftool_prog_list_wait(expected=1) ipl = sim.ip_link_show(xdp=True) progs = bpftool_prog_list(expected=1) fail(ipl["xdp"]["prog"]["id"] != progs[0]["id"], "Loaded program has wrong ID") fail("dev" in progs[0].keys(), "Device parameters reported for non-offloaded program") start_test("Test XDP prog replace with bad flags...") ret, _, err = sim.set_xdp(obj, "generic", force=True, fail=False, include_stderr=True) fail(ret == 0, "Replaced XDP program with a program in different mode") check_extack(err, "Native and generic XDP can't be active at the same time.", args) start_test("Test MTU restrictions...") ret, _ = sim.set_mtu(9000, fail=False) fail(ret == 0, "Driver should refuse to increase MTU to 9000 with XDP loaded...") sim.unset_xdp("drv") bpftool_prog_list_wait(expected=0) sim.set_mtu(9000) ret, _, err = sim.set_xdp(obj, "drv", fail=False, include_stderr=True) fail(ret == 0, "Driver should refuse to load program with MTU of 9000...") check_extack_nsim(err, "MTU too large w/ XDP enabled.", args) sim.set_mtu(1500) sim.wait_for_flush() start_test("Test non-offload XDP attaching to HW...") bpftool_prog_load("sample_ret0.bpf.o", "/sys/fs/bpf/nooffload") nooffload = bpf_pinned("/sys/fs/bpf/nooffload") ret, _, err = sim.set_xdp(nooffload, "offload", fail=False, include_stderr=True) fail(ret == 0, "attached non-offloaded XDP program to HW") check_extack_nsim(err, "xdpoffload of non-bound program.", args) rm("/sys/fs/bpf/nooffload") start_test("Test offload XDP attaching to drv...") bpftool_prog_load("sample_ret0.bpf.o", "/sys/fs/bpf/offload", dev=sim['ifname']) offload = bpf_pinned("/sys/fs/bpf/offload") ret, _, err = sim.set_xdp(offload, "drv", fail=False, include_stderr=True) fail(ret == 0, "attached offloaded XDP program to drv") check_extack(err, "Using device-bound program without HW_MODE flag is not supported.", args) rm("/sys/fs/bpf/offload") sim.wait_for_flush() start_test("Test XDP load failure...") sim.dfs["dev/bpf_bind_verifier_accept"] = 0 ret, _, err = bpftool_prog_load("sample_ret0.bpf.o", "/sys/fs/bpf/offload", dev=sim['ifname'], fail=False, include_stderr=True) fail(ret == 0, "verifier should fail on load") check_verifier_log(err, "[netdevsim] Hello from netdevsim!") sim.dfs["dev/bpf_bind_verifier_accept"] = 1 sim.wait_for_flush() start_test("Test XDP offload...") _, _, err = sim.set_xdp(obj, "offload", verbose=True, include_stderr=True) ipl = sim.ip_link_show(xdp=True) link_xdp = ipl["xdp"]["prog"] progs = bpftool_prog_list(expected=1) prog = progs[0] fail(link_xdp["id"] != prog["id"], "Loaded program has wrong ID") start_test("Test XDP offload is device bound...") dfs = simdev.dfs_get_bound_progs(expected=1) dprog = dfs[0] fail(prog["id"] != link_xdp["id"], "Program IDs don't match") fail(prog["tag"] != link_xdp["tag"], "Program tags don't match") fail(str(link_xdp["id"]) != dprog["id"], "Program IDs don't match") fail(dprog["state"] != "xlated", "Offloaded program state not translated") fail(dprog["loaded"] != "Y", "Offloaded program is not loaded") start_test("Test removing XDP program many times...") sim.unset_xdp("offload") sim.unset_xdp("offload") sim.unset_xdp("drv") sim.unset_xdp("drv") sim.unset_xdp("") sim.unset_xdp("") bpftool_prog_list_wait(expected=0) start_test("Test attempt to use a program for a wrong device...") simdev2 = NetdevSimDev() sim2, = simdev2.nsims sim2.set_xdp(obj, "offload") pin_file, pinned = pin_prog("/sys/fs/bpf/tmp") ret, _, err = sim.set_xdp(pinned, "offload", fail=False, include_stderr=True) fail(ret == 0, "Pinned program loaded for a different device accepted") check_extack_nsim(err, "program bound to different dev.", args) simdev2.remove() ret, _, err = sim.set_xdp(pinned, "offload", fail=False, include_stderr=True) fail(ret == 0, "Pinned program loaded for a removed device accepted") check_extack_nsim(err, "xdpoffload of non-bound program.", args) rm(pin_file) bpftool_prog_list_wait(expected=0) simdev, sim = test_multi_prog(simdev, sim, obj, "", 1) simdev, sim = test_multi_prog(simdev, sim, obj, "drv", 1) simdev, sim = test_multi_prog(simdev, sim, obj, "generic", 2) start_test("Test mixing of TC and XDP...") sim.tc_add_ingress() sim.set_xdp(obj, "offload") ret, _, err = sim.cls_bpf_add_filter(obj, skip_sw=True, fail=False, include_stderr=True) fail(ret == 0, "Loading TC when XDP active should fail") check_extack_nsim(err, "driver and netdev offload states mismatch.", args) sim.unset_xdp("offload") sim.wait_for_flush() sim.cls_bpf_add_filter(obj, skip_sw=True) ret, _, err = sim.set_xdp(obj, "offload", fail=False, include_stderr=True) fail(ret == 0, "Loading XDP when TC active should fail") check_extack_nsim(err, "TC program is already loaded.", args) start_test("Test binding TC from pinned...") pin_file, pinned = pin_prog("/sys/fs/bpf/tmp") sim.tc_flush_filters(bound=1, total=1) sim.cls_bpf_add_filter(pinned, da=True, skip_sw=True) sim.tc_flush_filters(bound=1, total=1) start_test("Test binding XDP from pinned...") sim.set_xdp(obj, "offload") pin_file, pinned = pin_prog("/sys/fs/bpf/tmp2", idx=1) sim.set_xdp(pinned, "offload", force=True) sim.unset_xdp("offload") sim.set_xdp(pinned, "offload", force=True) sim.unset_xdp("offload") start_test("Test offload of wrong type fails...") ret, _ = sim.cls_bpf_add_filter(pinned, da=True, skip_sw=True, fail=False) fail(ret == 0, "Managed to attach XDP program to TC") start_test("Test asking for TC offload of two filters...") sim.cls_bpf_add_filter(obj, da=True, skip_sw=True) ret, _, err = sim.cls_bpf_add_filter(obj, da=True, skip_sw=True, fail=False, include_stderr=True) fail(ret == 0, "Managed to offload two TC filters at the same time") check_extack_nsim(err, "driver and netdev offload states mismatch.", args) sim.tc_flush_filters(bound=2, total=2) start_test("Test if netdev removal waits for translation...") delay_msec = 500 sim.dfs["dev/bpf_bind_verifier_delay"] = delay_msec start = time.time() cmd_line = "tc filter add dev %s ingress bpf %s da skip_sw" % \ (sim['ifname'], obj) tc_proc = cmd(cmd_line, background=True, fail=False) # Wait for the verifier to start while simdev.dfs_num_bound_progs() <= 2: pass simdev.remove() end = time.time() ret, _ = cmd_result(tc_proc, fail=False) time_diff = end - start log("Time", "start:\t%s\nend:\t%s\ndiff:\t%s" % (start, end, time_diff)) fail(ret == 0, "Managed to load TC filter on a unregistering device") delay_sec = delay_msec * 0.001 fail(time_diff < delay_sec, "Removal process took %s, expected %s" % (time_diff, delay_sec)) # Remove all pinned files and reinstantiate the netdev clean_up() bpftool_prog_list_wait(expected=0) simdev = NetdevSimDev() sim, = simdev.nsims map_obj = bpf_obj("sample_map_ret0.bpf.o") start_test("Test loading program with maps...") sim.set_xdp(map_obj, "offload", JSON=False) # map fixup msg breaks JSON start_test("Test bpftool bound info reporting (own ns)...") check_dev_info(False, "") start_test("Test bpftool bound info reporting (other ns)...") ns = mknetns() sim.set_ns(ns) check_dev_info(True, "") start_test("Test bpftool bound info reporting (remote ns)...") check_dev_info(False, ns) start_test("Test bpftool bound info reporting (back to own ns)...") sim.set_ns("") check_dev_info(False, "") prog_file, _ = pin_prog("/sys/fs/bpf/tmp_prog") map_file, _ = pin_map("/sys/fs/bpf/tmp_map", idx=1, expected=2) simdev.remove() start_test("Test bpftool bound info reporting (removed dev)...") check_dev_info_removed(prog_file=prog_file, map_file=map_file) # Remove all pinned files and reinstantiate the netdev clean_up() bpftool_prog_list_wait(expected=0) simdev = NetdevSimDev() sim, = simdev.nsims start_test("Test map update (no flags)...") sim.set_xdp(map_obj, "offload", JSON=False) # map fixup msg breaks JSON maps = bpftool_map_list(expected=2) array = maps[0] if maps[0]["type"] == "array" else maps[1] htab = maps[0] if maps[0]["type"] == "hash" else maps[1] for m in maps: for i in range(2): bpftool("map update id %d key %s value %s" % (m["id"], int2str("I", i), int2str("Q", i * 3))) for m in maps: ret, _ = bpftool("map update id %d key %s value %s" % (m["id"], int2str("I", 3), int2str("Q", 3 * 3)), fail=False) fail(ret == 0, "added too many entries") start_test("Test map update (exists)...") for m in maps: for i in range(2): bpftool("map update id %d key %s value %s exist" % (m["id"], int2str("I", i), int2str("Q", i * 3))) for m in maps: ret, err = bpftool("map update id %d key %s value %s exist" % (m["id"], int2str("I", 3), int2str("Q", 3 * 3)), fail=False) fail(ret == 0, "updated non-existing key") fail(err["error"].find("No such file or directory") == -1, "expected ENOENT, error is '%s'" % (err["error"])) start_test("Test map update (noexist)...") for m in maps: for i in range(2): ret, err = bpftool("map update id %d key %s value %s noexist" % (m["id"], int2str("I", i), int2str("Q", i * 3)), fail=False) fail(ret == 0, "updated existing key") fail(err["error"].find("File exists") == -1, "expected EEXIST, error is '%s'" % (err["error"])) start_test("Test map dump...") for m in maps: _, entries = bpftool("map dump id %d" % (m["id"])) for i in range(2): key = str2int(entries[i]["key"]) fail(key != i, "expected key %d, got %d" % (key, i)) val = str2int(entries[i]["value"]) fail(val != i * 3, "expected value %d, got %d" % (val, i * 3)) start_test("Test map getnext...") for m in maps: _, entry = bpftool("map getnext id %d" % (m["id"])) key = str2int(entry["next_key"]) fail(key != 0, "next key %d, expected %d" % (key, 0)) _, entry = bpftool("map getnext id %d key %s" % (m["id"], int2str("I", 0))) key = str2int(entry["next_key"]) fail(key != 1, "next key %d, expected %d" % (key, 1)) ret, err = bpftool("map getnext id %d key %s" % (m["id"], int2str("I", 1)), fail=False) fail(ret == 0, "got next key past the end of map") fail(err["error"].find("No such file or directory") == -1, "expected ENOENT, error is '%s'" % (err["error"])) start_test("Test map delete (htab)...") for i in range(2): bpftool("map delete id %d key %s" % (htab["id"], int2str("I", i))) start_test("Test map delete (array)...") for i in range(2): ret, err = bpftool("map delete id %d key %s" % (htab["id"], int2str("I", i)), fail=False) fail(ret == 0, "removed entry from an array") fail(err["error"].find("No such file or directory") == -1, "expected ENOENT, error is '%s'" % (err["error"])) start_test("Test map remove...") sim.unset_xdp("offload") bpftool_map_list_wait(expected=0) simdev.remove() simdev = NetdevSimDev() sim, = simdev.nsims sim.set_xdp(map_obj, "offload", JSON=False) # map fixup msg breaks JSON simdev.remove() bpftool_map_list_wait(expected=0) start_test("Test map creation fail path...") simdev = NetdevSimDev() sim, = simdev.nsims sim.dfs["bpf_map_accept"] = "N" ret, _ = sim.set_xdp(map_obj, "offload", JSON=False, fail=False) fail(ret == 0, "netdevsim didn't refuse to create a map with offload disabled") simdev.remove() start_test("Test multi-dev ASIC program reuse...") simdevA = NetdevSimDev() simA, = simdevA.nsims simdevB = NetdevSimDev(3) simB1, simB2, simB3 = simdevB.nsims sims = (simA, simB1, simB2, simB3) simB = (simB1, simB2, simB3) bpftool_prog_load("sample_map_ret0.bpf.o", "/sys/fs/bpf/nsimA", dev=simA['ifname']) progA = bpf_pinned("/sys/fs/bpf/nsimA") bpftool_prog_load("sample_map_ret0.bpf.o", "/sys/fs/bpf/nsimB", dev=simB1['ifname']) progB = bpf_pinned("/sys/fs/bpf/nsimB") simA.set_xdp(progA, "offload", JSON=False) for d in simdevB.nsims: d.set_xdp(progB, "offload", JSON=False) start_test("Test multi-dev ASIC cross-dev replace...") ret, _ = simA.set_xdp(progB, "offload", force=True, JSON=False, fail=False) fail(ret == 0, "cross-ASIC program allowed") for d in simdevB.nsims: ret, _ = d.set_xdp(progA, "offload", force=True, JSON=False, fail=False) fail(ret == 0, "cross-ASIC program allowed") start_test("Test multi-dev ASIC cross-dev install...") for d in sims: d.unset_xdp("offload") ret, _, err = simA.set_xdp(progB, "offload", force=True, JSON=False, fail=False, include_stderr=True) fail(ret == 0, "cross-ASIC program allowed") check_extack_nsim(err, "program bound to different dev.", args) for d in simdevB.nsims: ret, _, err = d.set_xdp(progA, "offload", force=True, JSON=False, fail=False, include_stderr=True) fail(ret == 0, "cross-ASIC program allowed") check_extack_nsim(err, "program bound to different dev.", args) start_test("Test multi-dev ASIC cross-dev map reuse...") mapA = bpftool("prog show %s" % (progA))[1]["map_ids"][0] mapB = bpftool("prog show %s" % (progB))[1]["map_ids"][0] ret, _ = bpftool_prog_load("sample_map_ret0.bpf.o", "/sys/fs/bpf/nsimB_", dev=simB3['ifname'], maps=["idx 0 id %d" % (mapB)], fail=False) fail(ret != 0, "couldn't reuse a map on the same ASIC") rm("/sys/fs/bpf/nsimB_") ret, _, err = bpftool_prog_load("sample_map_ret0.bpf.o", "/sys/fs/bpf/nsimA_", dev=simA['ifname'], maps=["idx 0 id %d" % (mapB)], fail=False, include_stderr=True) fail(ret == 0, "could reuse a map on a different ASIC") fail(err.count("offload device mismatch between prog and map") == 0, "error message missing for cross-ASIC map") ret, _, err = bpftool_prog_load("sample_map_ret0.bpf.o", "/sys/fs/bpf/nsimB_", dev=simB1['ifname'], maps=["idx 0 id %d" % (mapA)], fail=False, include_stderr=True) fail(ret == 0, "could reuse a map on a different ASIC") fail(err.count("offload device mismatch between prog and map") == 0, "error message missing for cross-ASIC map") start_test("Test multi-dev ASIC cross-dev destruction...") bpftool_prog_list_wait(expected=2) simdevA.remove() bpftool_prog_list_wait(expected=1) ifnameB = bpftool("prog show %s" % (progB))[1]["dev"]["ifname"] fail(ifnameB != simB1['ifname'], "program not bound to original device") simB1.remove() bpftool_prog_list_wait(expected=1) start_test("Test multi-dev ASIC cross-dev destruction - move...") ifnameB = bpftool("prog show %s" % (progB))[1]["dev"]["ifname"] fail(ifnameB not in (simB2['ifname'], simB3['ifname']), "program not bound to remaining devices") simB2.remove() ifnameB = bpftool("prog show %s" % (progB))[1]["dev"]["ifname"] fail(ifnameB != simB3['ifname'], "program not bound to remaining device") simB3.remove() simdevB.remove() bpftool_prog_list_wait(expected=0) start_test("Test multi-dev ASIC cross-dev destruction - orphaned...") ret, out = bpftool("prog show %s" % (progB), fail=False) fail(ret == 0, "got information about orphaned program") fail("error" not in out, "no error reported for get info on orphaned") fail(out["error"] != "can't get prog info: No such device", "wrong error for get info on orphaned") print("%s: OK" % (os.path.basename(__file__))) finally: log("Clean up...", "", level=1) log_level_inc() clean_up() |