| 1 | #!/usr/bin/env python3 |
| 2 | # |
| 3 | # Copyright (C) 2016 Julien Desfossez <jdesfossez@efficios.com> |
| 4 | # |
| 5 | # SPDX-License-Identifier: GPL-2.0-only |
| 6 | # |
| 7 | |
| 8 | import argparse |
| 9 | import pprint |
| 10 | import sys |
| 11 | import time |
| 12 | import json |
| 13 | |
| 14 | from collections import defaultdict |
| 15 | |
| 16 | try: |
| 17 | import bt2 |
| 18 | except ImportError: |
| 19 | # quick fix for debian-based distros |
| 20 | sys.path.append("/usr/local/lib/python%d.%d/site-packages" % |
| 21 | (sys.version_info.major, sys.version_info.minor)) |
| 22 | import bt2 |
| 23 | |
| 24 | NSEC_PER_SEC = 1000000000 |
| 25 | |
| 26 | class TraceParser: |
| 27 | def __init__(self, trace_msg_iter, pid): |
| 28 | self.trace = trace_msg_iter |
| 29 | self.pid = pid |
| 30 | |
| 31 | # This dictionnary holds the results of each testcases of a test. |
| 32 | # Its layout is the following: |
| 33 | # self.expect={ |
| 34 | # 'event_name_1': {'check_1': 0, 'check_2: 1}, |
| 35 | # 'event_name_2': {'check_1': 1} |
| 36 | # } |
| 37 | # Each test classes checks the payload of different events. Each of |
| 38 | # those checks are stored in a event_name specific dictionnary in this |
| 39 | # data structure. |
| 40 | self.expect = defaultdict(lambda : defaultdict(int)) |
| 41 | |
| 42 | # This dictionnary holds the value recorded in the trace that are |
| 43 | # tested. Its content is use to print the values that caused a test to |
| 44 | # fail. |
| 45 | self.recorded_values = {} |
| 46 | |
| 47 | def ns_to_hour_nsec(self, ns): |
| 48 | d = time.localtime(ns/NSEC_PER_SEC) |
| 49 | return "%02d:%02d:%02d.%09d" % (d.tm_hour, d.tm_min, d.tm_sec, |
| 50 | ns % NSEC_PER_SEC) |
| 51 | |
| 52 | def parse(self): |
| 53 | # iterate over all the events |
| 54 | for msg in self.trace: |
| 55 | if type(msg) is not bt2._EventMessageConst: |
| 56 | continue |
| 57 | |
| 58 | if self.pid is not None and msg.event["pid"] != self.pid: |
| 59 | continue |
| 60 | |
| 61 | method_name = "handle_%s" % msg.event.name.replace(":", "_").replace( |
| 62 | "+", "_") |
| 63 | # call the function to handle each event individually |
| 64 | if hasattr(TraceParser, method_name): |
| 65 | func = getattr(TraceParser, method_name) |
| 66 | func(self, msg.event) |
| 67 | |
| 68 | ret = 0 |
| 69 | # For each event of the test case, check all entries for failed |
| 70 | for event_name, event_results in self.expect.items(): |
| 71 | for val in event_results.keys(): |
| 72 | if self.expect[event_name][val] == 0: |
| 73 | print("%s not validated" % val) |
| 74 | print("Values of the local variables of this test:") |
| 75 | # using pprint for pretty printing the dictionnary |
| 76 | pprint.pprint(self.recorded_values[event_name]) |
| 77 | ret = 1 |
| 78 | |
| 79 | return ret |
| 80 | |
| 81 | # epoll_ctl |
| 82 | def handle_compat_syscall_entry_epoll_ctl(self, event): |
| 83 | self.epoll_ctl_entry(event) |
| 84 | |
| 85 | def handle_compat_syscall_exit_epoll_ctl(self, event): |
| 86 | self.epoll_ctl_exit(event) |
| 87 | |
| 88 | def handle_syscall_entry_epoll_ctl(self, event): |
| 89 | self.epoll_ctl_entry(event) |
| 90 | |
| 91 | def handle_syscall_exit_epoll_ctl(self, event): |
| 92 | self.epoll_ctl_exit(event) |
| 93 | |
| 94 | def epoll_ctl_entry(self, event): |
| 95 | pass |
| 96 | |
| 97 | def epoll_ctl_exit(self, event): |
| 98 | pass |
| 99 | |
| 100 | # epoll_wait + epoll_pwait |
| 101 | def handle_compat_syscall_entry_epoll_wait(self, event): |
| 102 | self.epoll_wait_entry(event) |
| 103 | |
| 104 | def handle_compat_syscall_exit_epoll_wait(self, event): |
| 105 | self.epoll_wait_exit(event) |
| 106 | |
| 107 | def handle_syscall_entry_epoll_wait(self, event): |
| 108 | self.epoll_wait_entry(event) |
| 109 | |
| 110 | def handle_syscall_exit_epoll_wait(self, event): |
| 111 | self.epoll_wait_exit(event) |
| 112 | |
| 113 | def handle_compat_syscall_entry_epoll_pwait(self, event): |
| 114 | self.epoll_pwait_entry(event) |
| 115 | |
| 116 | def handle_compat_syscall_exit_epoll_pwait(self, event): |
| 117 | self.epoll_pwait_exit(event) |
| 118 | |
| 119 | def handle_syscall_entry_epoll_pwait(self, event): |
| 120 | self.epoll_pwait_entry(event) |
| 121 | |
| 122 | def handle_syscall_exit_epoll_pwait(self, event): |
| 123 | self.epoll_pwait_exit(event) |
| 124 | |
| 125 | def epoll_wait_entry(self, event): |
| 126 | pass |
| 127 | |
| 128 | def epoll_wait_exit(self, event): |
| 129 | pass |
| 130 | |
| 131 | def epoll_pwait_entry(self, event): |
| 132 | self.epoll_wait_entry(event) |
| 133 | |
| 134 | def epoll_pwait_exit(self, event): |
| 135 | self.epoll_wait_exit(event) |
| 136 | |
| 137 | ## poll + ppoll |
| 138 | def handle_compat_syscall_entry_poll(self, event): |
| 139 | self.poll_entry(event) |
| 140 | |
| 141 | def handle_compat_syscall_exit_poll(self, event): |
| 142 | self.poll_exit(event) |
| 143 | |
| 144 | def handle_syscall_entry_poll(self, event): |
| 145 | self.poll_entry(event) |
| 146 | |
| 147 | def handle_syscall_exit_poll(self, event): |
| 148 | self.poll_exit(event) |
| 149 | |
| 150 | def handle_compat_syscall_entry_ppoll(self, event): |
| 151 | self.poll_entry(event) |
| 152 | |
| 153 | def handle_compat_syscall_exit_ppoll(self, event): |
| 154 | self.poll_exit(event) |
| 155 | |
| 156 | def handle_syscall_entry_ppoll(self, event): |
| 157 | self.poll_entry(event) |
| 158 | |
| 159 | def handle_syscall_exit_ppoll(self, event): |
| 160 | self.poll_exit(event) |
| 161 | |
| 162 | def poll_entry(self, event): |
| 163 | pass |
| 164 | |
| 165 | def poll_exit(self, event): |
| 166 | pass |
| 167 | |
| 168 | # epoll_create |
| 169 | def handle_compat_syscall_entry_epoll_create1(self, event): |
| 170 | self.epoll_create_entry(event) |
| 171 | |
| 172 | def handle_compat_syscall_exit_epoll_create1(self, event): |
| 173 | self.epoll_create_exit(event) |
| 174 | |
| 175 | def handle_compat_syscall_entry_epoll_create(self, event): |
| 176 | self.epoll_create_entry(event) |
| 177 | |
| 178 | def handle_compat_syscall_exit_epoll_create(self, event): |
| 179 | self.epoll_create_exit(event) |
| 180 | |
| 181 | def handle_syscall_entry_epoll_create1(self, event): |
| 182 | self.epoll_create_entry(event) |
| 183 | |
| 184 | def handle_syscall_exit_epoll_create1(self, event): |
| 185 | self.epoll_create_exit(event) |
| 186 | |
| 187 | def handle_syscall_entry_epoll_create(self, event): |
| 188 | self.epoll_create_entry(event) |
| 189 | |
| 190 | def handle_syscall_exit_epoll_create(self, event): |
| 191 | self.epoll_create_exit(event) |
| 192 | |
| 193 | def epoll_create_entry(self, event): |
| 194 | pass |
| 195 | |
| 196 | def epoll_create_exit(self, event): |
| 197 | pass |
| 198 | |
| 199 | # select + pselect6 |
| 200 | def handle_syscall_entry_pselect6(self, event): |
| 201 | self.select_entry(event) |
| 202 | |
| 203 | def handle_syscall_exit_pselect6(self, event): |
| 204 | self.select_exit(event) |
| 205 | |
| 206 | def handle_compat_syscall_entry_pselect6(self, event): |
| 207 | self.select_entry(event) |
| 208 | |
| 209 | def handle_compat_syscall_exit_pselect6(self, event): |
| 210 | self.select_exit(event) |
| 211 | |
| 212 | def handle_syscall_entry_select(self, event): |
| 213 | self.select_entry(event) |
| 214 | |
| 215 | def handle_syscall_exit_select(self, event): |
| 216 | self.select_exit(event) |
| 217 | |
| 218 | def handle_compat_syscall_entry_select(self, event): |
| 219 | self.select_entry(event) |
| 220 | |
| 221 | def handle_compat_syscall_exit_select(self, event): |
| 222 | self.select_exit(event) |
| 223 | |
| 224 | def select_entry(self, event): |
| 225 | pass |
| 226 | |
| 227 | def select_exit(self, event): |
| 228 | pass |
| 229 | |
| 230 | |
| 231 | class Test1(TraceParser): |
| 232 | def __init__(self, trace, validation_args): |
| 233 | super().__init__(trace, validation_args['pid']) |
| 234 | |
| 235 | # Values expected in the trace |
| 236 | self.epoll_wait_fd = validation_args['epoll_wait_fd'] |
| 237 | self.epoll_pwait_fd = validation_args['epoll_pwait_fd'] |
| 238 | |
| 239 | self.expect["select_entry"]["select_in_fd0"] = 0 |
| 240 | self.expect["select_entry"]["select_in_fd1023"] = 0 |
| 241 | self.expect["select_exit"]["select_out_fd0"] = 0 |
| 242 | self.expect["select_exit"]["select_out_fd1023"] = 0 |
| 243 | self.expect["poll_entry"]["poll_in_nfds1"] = 0 |
| 244 | self.expect["poll_exit"]["poll_out_nfds1"] = 0 |
| 245 | self.expect["epoll_ctl_entry"]["epoll_ctl_in_add"] = 0 |
| 246 | self.expect["epoll_ctl_exit"]["epoll_ctl_out_ok"] = 0 |
| 247 | self.expect["epoll_wait_entry"]["epoll_wait_in_ok"] = 0 |
| 248 | self.expect["epoll_wait_exit"]["epoll_wait_out_fd0"] = 0 |
| 249 | self.expect["epoll_pwait_entry"]["epoll_pwait_in_ok"] = 0 |
| 250 | self.expect["epoll_pwait_exit"]["epoll_pwait_out_fd0"] = 0 |
| 251 | |
| 252 | def select_entry(self, event): |
| 253 | n = event["n"] |
| 254 | overflow = event["overflow"] |
| 255 | readfd_0 = event["readfds"][0] |
| 256 | |
| 257 | # check that the FD 0 is actually set in the readfds |
| 258 | if n == 1 and readfd_0 == 1: |
| 259 | self.expect["select_entry"]["select_in_fd0"] = 1 |
| 260 | if n == 1023: |
| 261 | readfd_127 = event["readfds"][127] |
| 262 | writefd_127 = event["writefds"][127] |
| 263 | exceptfd_127 = event["exceptfds"][127] |
| 264 | |
| 265 | # check that the FD 1023 is actually set in the readfds |
| 266 | if readfd_127 == 0x40 and writefd_127 == 0 and \ |
| 267 | exceptfd_127 == 0 and overflow == 0: |
| 268 | self.expect["select_entry"]["select_in_fd1023"] = 1 |
| 269 | |
| 270 | # Save values of local variables to print in case of test failure |
| 271 | self.recorded_values["select_entry"] = locals() |
| 272 | |
| 273 | def select_exit(self, event): |
| 274 | ret = event["ret"] |
| 275 | tvp = event["tvp"] |
| 276 | overflow = event["overflow"] |
| 277 | _readfds_length = event["_readfds_length"] |
| 278 | |
| 279 | if ret == 1: |
| 280 | # check that the FD 0 is actually set in the readfds |
| 281 | readfd_0 = event["readfds"][0] |
| 282 | |
| 283 | if readfd_0 == 1: |
| 284 | self.expect["select_exit"]["select_out_fd0"] = 1 |
| 285 | # check that the FD 1023 is actually set in the readfds |
| 286 | if _readfds_length == 128: |
| 287 | readfd_127 = event["readfds"][127] |
| 288 | writefd_127 = event["writefds"][127] |
| 289 | exceptfd_127 = event["exceptfds"][127] |
| 290 | if readfd_127 == 0x40 and writefd_127 == 0 and \ |
| 291 | exceptfd_127 == 0 and tvp == 0: |
| 292 | self.expect["select_exit"]["select_out_fd1023"] = 1 |
| 293 | |
| 294 | # Save values of local variables to print in case of test failure |
| 295 | self.recorded_values["select_exit"] = locals() |
| 296 | |
| 297 | def poll_entry(self, event): |
| 298 | nfds = event["nfds"] |
| 299 | fds_length = event["fds_length"] |
| 300 | overflow = event["overflow"] |
| 301 | |
| 302 | # check that only one FD is set, that it has the POLLIN flag and that |
| 303 | # the raw value matches the events bit field. |
| 304 | if nfds == 1 and fds_length == 1: |
| 305 | fd_0 = event["fds"][0] |
| 306 | if fd_0["raw_events"] == 0x3 and fd_0["events"]["POLLIN"] == 1 and \ |
| 307 | fd_0["events"]["padding"] == 0: |
| 308 | self.expect["poll_entry"]["poll_in_nfds1"] = 1 |
| 309 | |
| 310 | # Save values of local variables to print in case of test failure |
| 311 | self.recorded_values["poll_entry"] = locals() |
| 312 | |
| 313 | def poll_exit(self, event): |
| 314 | ret = event["ret"] |
| 315 | fds_length = event["fds_length"] |
| 316 | |
| 317 | # check that only one FD is set, that it has the POLLIN flag and that |
| 318 | # the raw value matches the events bit field. |
| 319 | if ret == 1 and fds_length == 1: |
| 320 | fd_0 = event["fds"][0] |
| 321 | if fd_0["raw_events"] == 0x1 and fd_0["events"]["POLLIN"] == 1 and \ |
| 322 | fd_0["events"]["padding"] == 0: |
| 323 | self.expect["poll_exit"]["poll_out_nfds1"] = 1 |
| 324 | |
| 325 | # Save values of local variables to print in case of test failure |
| 326 | self.recorded_values["poll_exit"] = locals() |
| 327 | |
| 328 | def epoll_ctl_entry(self, event): |
| 329 | epfd = event["epfd"] |
| 330 | op_enum = event["op_enum"] |
| 331 | fd = event["fd"] |
| 332 | _event = event["event"] |
| 333 | |
| 334 | # check that we have FD 0 waiting for EPOLLIN|EPOLLPRI and that |
| 335 | # data.fd = 0 |
| 336 | if (epfd == self.epoll_wait_fd or epfd == self.epoll_pwait_fd) and 'EPOLL_CTL_ADD' in op_enum.labels and fd == 0 and \ |
| 337 | _event["data_union"]["fd"] == 0 and \ |
| 338 | _event["events"]["EPOLLIN"] == 1 and \ |
| 339 | _event["events"]["EPOLLPRI"] == 1: |
| 340 | self.expect["epoll_ctl_entry"]["epoll_ctl_in_add"] = 1 |
| 341 | |
| 342 | # Save values of local variables to print in case of test failure |
| 343 | self.recorded_values["epoll_ctl_entry"] = locals() |
| 344 | |
| 345 | def epoll_ctl_exit(self, event): |
| 346 | ret = event["ret"] |
| 347 | |
| 348 | if ret == 0: |
| 349 | self.expect["epoll_ctl_exit"]["epoll_ctl_out_ok"] = 1 |
| 350 | |
| 351 | # Save values of local variables to print in case of test failure |
| 352 | self.recorded_values["epoll_ctl_exit"] = locals() |
| 353 | |
| 354 | def epoll_wait_entry(self, event): |
| 355 | epfd = event["epfd"] |
| 356 | maxevents = event["maxevents"] |
| 357 | timeout = event["timeout"] |
| 358 | |
| 359 | if epfd == self.epoll_wait_fd and maxevents == 1 and timeout == -1: |
| 360 | self.expect["epoll_wait_entry"]["epoll_wait_in_ok"] = 1 |
| 361 | |
| 362 | # Save values of local variables to print in case of test failure |
| 363 | self.recorded_values["epoll_wait_entry"] = locals() |
| 364 | |
| 365 | def epoll_wait_exit(self, event): |
| 366 | ret = event["ret"] |
| 367 | fds_length = event["fds_length"] |
| 368 | overflow = event["overflow"] |
| 369 | |
| 370 | # check that FD 0 returned with EPOLLIN and the right data.fd |
| 371 | if ret == 1 and fds_length == 1: |
| 372 | fd_0 = event["fds"][0] |
| 373 | if overflow == 0 and fd_0["data_union"]["fd"] == 0 and \ |
| 374 | fd_0["events"]["EPOLLIN"] == 1: |
| 375 | self.expect["epoll_wait_exit"]["epoll_wait_out_fd0"] = 1 |
| 376 | |
| 377 | # Save values of local variables to print in case of test failure |
| 378 | self.recorded_values["epoll_wait_exit"] = locals() |
| 379 | |
| 380 | def epoll_pwait_entry(self, event): |
| 381 | epfd = event["epfd"] |
| 382 | maxevents = event["maxevents"] |
| 383 | timeout = event["timeout"] |
| 384 | |
| 385 | if epfd == self.epoll_pwait_fd and maxevents == 1 and timeout == -1: |
| 386 | self.expect["epoll_pwait_entry"]["epoll_pwait_in_ok"] = 1 |
| 387 | |
| 388 | # Save values of local variables to print in case of test failure |
| 389 | self.recorded_values["epoll_pwait_entry"] = locals() |
| 390 | |
| 391 | def epoll_pwait_exit(self, event): |
| 392 | ret = event["ret"] |
| 393 | fds_length = event["fds_length"] |
| 394 | overflow = event["overflow"] |
| 395 | |
| 396 | # check that FD 0 returned with EPOLLIN and the right data.fd |
| 397 | if ret == 1 and fds_length == 1: |
| 398 | fd_0 = event["fds"][0] |
| 399 | if overflow == 0 and fd_0["data_union"]["fd"] == 0 and \ |
| 400 | fd_0["events"]["EPOLLIN"] == 1: |
| 401 | self.expect["epoll_pwait_exit"]["epoll_pwait_out_fd0"] = 1 |
| 402 | |
| 403 | # Save values of local variables to print in case of test failure |
| 404 | self.recorded_values["epoll_pwait_exit"] = locals() |
| 405 | |
| 406 | class Test2(TraceParser): |
| 407 | def __init__(self, trace, validation_args): |
| 408 | super().__init__(trace, validation_args['pid']) |
| 409 | self.expect["select_entry"]["select_timeout_in_fd0"] = 0 |
| 410 | self.expect["select_entry"]["select_timeout_in_fd1023"] = 0 |
| 411 | self.expect["select_exit"]["select_timeout_out"] = 0 |
| 412 | self.expect["poll_entry"]["poll_timeout_in"] = 0 |
| 413 | self.expect["poll_exit"]["poll_timeout_out"] = 0 |
| 414 | self.expect["epoll_ctl_entry"]["epoll_ctl_timeout_in_add"] = 0 |
| 415 | self.expect["epoll_ctl_exit"]["epoll_ctl_timeout_out_ok"] = 0 |
| 416 | self.expect["epoll_wait_entry"]["epoll_wait_timeout_in"] = 0 |
| 417 | self.expect["epoll_wait_exit"]["epoll_wait_timeout_out"] = 0 |
| 418 | |
| 419 | def select_entry(self, event): |
| 420 | n = event["n"] |
| 421 | tvp = event["tvp"] |
| 422 | |
| 423 | if n == 1 and tvp != 0: |
| 424 | self.expect["select_entry"]["select_timeout_in_fd0"] = 1 |
| 425 | if n == 1023: |
| 426 | readfd_127 = event["readfds"][127] |
| 427 | writefd_127 = event["writefds"][127] |
| 428 | exceptfd_127 = event["exceptfds"][127] |
| 429 | |
| 430 | if readfd_127 == 0x40 and writefd_127 == 0 and \ |
| 431 | exceptfd_127 == 0 and tvp != 0: |
| 432 | self.expect["select_entry"]["select_timeout_in_fd1023"] = 1 |
| 433 | |
| 434 | # Save values of local variables to print in case of test failure |
| 435 | self.recorded_values["select_entry"] = locals() |
| 436 | |
| 437 | def select_exit(self, event): |
| 438 | ret = event["ret"] |
| 439 | tvp = event["tvp"] |
| 440 | |
| 441 | if ret == 0 and tvp != 0: |
| 442 | self.expect["select_exit"]["select_timeout_out"] = 1 |
| 443 | |
| 444 | # Save values of local variables to print in case of test failure |
| 445 | self.recorded_values["select_exit"] = locals() |
| 446 | |
| 447 | def poll_entry(self, event): |
| 448 | nfds = event["nfds"] |
| 449 | fds_length = event["fds_length"] |
| 450 | |
| 451 | # check that we wait on FD 0 for POLLIN and that the raw_events |
| 452 | # field matches the value of POLLIN |
| 453 | if nfds == 1 and fds_length == 1: |
| 454 | fd_0 = event["fds"][0] |
| 455 | if fd_0["raw_events"] == 0x3 and \ |
| 456 | fd_0["events"]["POLLIN"] == 1 and \ |
| 457 | fd_0["events"]["padding"] == 0: |
| 458 | self.expect["poll_entry"]["poll_timeout_in"] = 1 |
| 459 | |
| 460 | # Save values of local variables to print in case of test failure |
| 461 | self.recorded_values["poll_entry"] = locals() |
| 462 | |
| 463 | def poll_exit(self, event): |
| 464 | ret = event["ret"] |
| 465 | nfds = event["nfds"] |
| 466 | fds_length = event["fds_length"] |
| 467 | |
| 468 | if ret == 0 and nfds == 1 and fds_length == 0: |
| 469 | self.expect["poll_exit"]["poll_timeout_out"] = 1 |
| 470 | |
| 471 | # Save values of local variables to print in case of test failure |
| 472 | self.recorded_values["poll_exit"] = locals() |
| 473 | |
| 474 | def epoll_ctl_entry(self, event): |
| 475 | op_enum = event["op_enum"] |
| 476 | _event = event["event"] |
| 477 | |
| 478 | # make sure we see a EPOLLIN|EPOLLPRI |
| 479 | if 'EPOLL_CTL_ADD' in op_enum.labels and \ |
| 480 | _event["events"]["EPOLLIN"] == 1 and \ |
| 481 | _event["events"]["EPOLLPRI"] == 1: |
| 482 | self.expect["epoll_ctl_entry"]["epoll_ctl_timeout_in_add"] = 1 |
| 483 | |
| 484 | # Save values of local variables to print in case of test failure |
| 485 | self.recorded_values["epoll_ctl_entry"] = locals() |
| 486 | |
| 487 | def epoll_ctl_exit(self, event): |
| 488 | ret = event["ret"] |
| 489 | |
| 490 | if ret == 0: |
| 491 | self.expect["epoll_ctl_exit"]["epoll_ctl_timeout_out_ok"] = 1 |
| 492 | |
| 493 | # Save values of local variables to print in case of test failure |
| 494 | self.recorded_values["epoll_ctl_exit"] = locals() |
| 495 | |
| 496 | def epoll_wait_entry(self, event): |
| 497 | maxevents = event["maxevents"] |
| 498 | timeout = event["timeout"] |
| 499 | |
| 500 | if maxevents == 1 and timeout == 1: |
| 501 | self.expect["epoll_wait_entry"]["epoll_wait_timeout_in"] = 1 |
| 502 | |
| 503 | # Save values of local variables to print in case of test failure |
| 504 | self.recorded_values["epoll_wait_entry"] = locals() |
| 505 | |
| 506 | def epoll_wait_exit(self, event): |
| 507 | ret = event["ret"] |
| 508 | fds_length = event["fds_length"] |
| 509 | overflow = event["overflow"] |
| 510 | |
| 511 | if ret == 0 and fds_length == 0 and overflow == 0: |
| 512 | self.expect["epoll_wait_exit"]["epoll_wait_timeout_out"] = 1 |
| 513 | |
| 514 | # Save values of local variables to print in case of test failure |
| 515 | self.recorded_values["epoll_wait_exit"] = locals() |
| 516 | |
| 517 | |
| 518 | class Test3(TraceParser): |
| 519 | def __init__(self, trace, validation_args): |
| 520 | super().__init__(trace, validation_args['pid']) |
| 521 | self.expect["select_entry"]["select_invalid_fd_in"] = 0 |
| 522 | self.expect["select_exit"]["select_invalid_fd_out"] = 0 |
| 523 | |
| 524 | def select_entry(self, event): |
| 525 | n = event["n"] |
| 526 | overflow = event["overflow"] |
| 527 | |
| 528 | if n > 0 and overflow == 0: |
| 529 | self.expect["select_entry"]["select_invalid_fd_in"] = 1 |
| 530 | |
| 531 | # Save values of local variables to print in case of test failure |
| 532 | self.recorded_values["select_entry"] = locals() |
| 533 | |
| 534 | def select_exit(self, event): |
| 535 | ret = event["ret"] |
| 536 | overflow = event["overflow"] |
| 537 | _readfds_length = event["_readfds_length"] |
| 538 | |
| 539 | # make sure the event has a ret field equal to -EBADF |
| 540 | if ret == -9 and overflow == 0 and _readfds_length == 0: |
| 541 | self.expect["select_exit"]["select_invalid_fd_out"] = 1 |
| 542 | |
| 543 | # Save values of local variables to print in case of test failure |
| 544 | self.recorded_values["select_exit"] = locals() |
| 545 | |
| 546 | |
| 547 | class Test4(TraceParser): |
| 548 | def __init__(self, trace, validation_args): |
| 549 | super().__init__(trace, validation_args['pid']) |
| 550 | self.expect["poll_entry"]["big_poll_in"] = 0 |
| 551 | self.expect["poll_exit"]["big_poll_out"] = 0 |
| 552 | |
| 553 | def poll_entry(self, event): |
| 554 | nfds = event["nfds"] |
| 555 | fds_length = event["fds_length"] |
| 556 | overflow = event["overflow"] |
| 557 | |
| 558 | # test of big list of FDs and the behaviour of the overflow |
| 559 | if nfds == 2047 and fds_length == 512 and overflow == 1: |
| 560 | fd_0 = event["fds"][0] |
| 561 | fd_511 = event["fds"][511] |
| 562 | if fd_0["raw_events"] == 0x3 and fd_0["events"]["POLLIN"] == 1 and \ |
| 563 | fd_0["events"]["padding"] == 0 and \ |
| 564 | fd_511["events"]["POLLIN"] == 1 and \ |
| 565 | fd_511["events"]["POLLPRI"] == 1: |
| 566 | self.expect["poll_entry"]["big_poll_in"] = 1 |
| 567 | |
| 568 | # Save values of local variables to print in case of test failure |
| 569 | self.recorded_values["poll_entry"] = locals() |
| 570 | |
| 571 | def poll_exit(self, event): |
| 572 | ret = event["ret"] |
| 573 | nfds = event["nfds"] |
| 574 | fds_length = event["fds_length"] |
| 575 | overflow = event["overflow"] |
| 576 | |
| 577 | # test of big list of FDs and the behaviour of the overflow |
| 578 | if ret == 2047 and nfds == 2047 and fds_length == 512 and overflow == 1: |
| 579 | fd_0 = event["fds"][0] |
| 580 | fd_511 = event["fds"][511] |
| 581 | if fd_0["events"]["POLLIN"] == 1 and fd_511["events"]["POLLIN"] == 1: |
| 582 | self.expect["poll_exit"]["big_poll_out"] = 1 |
| 583 | |
| 584 | # Save values of local variables to print in case of test failure |
| 585 | self.recorded_values["poll_exit"] = locals() |
| 586 | |
| 587 | class Test5(TraceParser): |
| 588 | def __init__(self, trace, validation_args): |
| 589 | super().__init__(trace, validation_args['pid']) |
| 590 | self.expect["poll_entry"]["poll_overflow_in"] = 0 |
| 591 | self.expect["poll_exit"]["poll_overflow_out"] = 0 |
| 592 | |
| 593 | def poll_entry(self, event): |
| 594 | nfds = event["nfds"] |
| 595 | fds_length = event["fds_length"] |
| 596 | overflow = event["overflow"] |
| 597 | |
| 598 | # test that event in valid even though the target buffer is too small |
| 599 | # and the program segfaults |
| 600 | if nfds == 100 and fds_length == 100 and overflow == 0: |
| 601 | fd_0 = event["fds"][0] |
| 602 | if fd_0["events"]["POLLIN"] == 1: |
| 603 | self.expect["poll_entry"]["poll_overflow_in"] = 1 |
| 604 | |
| 605 | # Save values of local variables to print in case of test failure |
| 606 | self.recorded_values["poll_entry"] = locals() |
| 607 | |
| 608 | def poll_exit(self, event): |
| 609 | nfds = event["nfds"] |
| 610 | overflow = event["overflow"] |
| 611 | |
| 612 | # test that event in valid even though the target buffer is too small |
| 613 | # and the program segfaults |
| 614 | if nfds == 100 and overflow == 0: |
| 615 | self.expect["poll_exit"]["poll_overflow_out"] = 1 |
| 616 | |
| 617 | # Save values of local variables to print in case of test failure |
| 618 | self.recorded_values["poll_exit"] = locals() |
| 619 | |
| 620 | |
| 621 | class Test6(TraceParser): |
| 622 | def __init__(self, trace, validation_args): |
| 623 | super().__init__(trace, validation_args['pid']) |
| 624 | self.expect["select_entry"]["pselect_invalid_in"] = 0 |
| 625 | self.expect["select_exit"]["pselect_invalid_out"] = 0 |
| 626 | |
| 627 | def select_entry(self, event): |
| 628 | n = event["n"] |
| 629 | overflow = event["overflow"] |
| 630 | _readfds_length = event["_readfds_length"] |
| 631 | |
| 632 | # test that event in valid even though the target buffer pointer is |
| 633 | # invalid and the program segfaults |
| 634 | if n == 1 and overflow == 0 and _readfds_length == 0: |
| 635 | self.expect["select_entry"]["pselect_invalid_in"] = 1 |
| 636 | |
| 637 | # Save values of local variables to print in case of test failure |
| 638 | self.recorded_values["select_entry"] = locals() |
| 639 | |
| 640 | def select_exit(self, event): |
| 641 | ret = event["ret"] |
| 642 | overflow = event["overflow"] |
| 643 | _readfds_length = event["_readfds_length"] |
| 644 | |
| 645 | # test that event in valid even though the target buffer pointer is |
| 646 | # invalid and the program segfaults |
| 647 | if ret == -14 and overflow == 0 and _readfds_length == 0: |
| 648 | self.expect["select_exit"]["pselect_invalid_out"] = 1 |
| 649 | |
| 650 | # Save values of local variables to print in case of test failure |
| 651 | self.recorded_values["select_exit"] = locals() |
| 652 | |
| 653 | |
| 654 | class Test7(TraceParser): |
| 655 | def __init__(self, trace, validation_args): |
| 656 | super().__init__(trace, validation_args['pid']) |
| 657 | self.expect["poll_entry"]["poll_max_in"] = 0 |
| 658 | self.expect["poll_exit"]["poll_max_out"] = 0 |
| 659 | |
| 660 | def poll_entry(self, event): |
| 661 | nfds = event["nfds"] |
| 662 | overflow = event["overflow"] |
| 663 | |
| 664 | # check the proper working of INT_MAX maxevent value |
| 665 | if nfds == 4294967295 and overflow == 1: |
| 666 | self.expect["poll_entry"]["poll_max_in"] = 1 |
| 667 | |
| 668 | # Save values of local variables to print in case of test failure |
| 669 | self.recorded_values["poll_entry"] = locals() |
| 670 | |
| 671 | |
| 672 | def poll_exit(self, event): |
| 673 | ret = event["ret"] |
| 674 | nfds = event["nfds"] |
| 675 | overflow = event["overflow"] |
| 676 | |
| 677 | # check the proper working of UINT_MAX maxevent value |
| 678 | if ret == -22 and nfds == 4294967295 and overflow == 0: |
| 679 | self.expect["poll_exit"]["poll_max_out"] = 1 |
| 680 | |
| 681 | # Save values of local variables to print in case of test failure |
| 682 | self.recorded_values["poll_exit"] = locals() |
| 683 | |
| 684 | |
| 685 | class Test8(TraceParser): |
| 686 | def __init__(self, trace, validation_args): |
| 687 | super().__init__(trace, validation_args['pid']) |
| 688 | |
| 689 | # Values expected in the trace |
| 690 | self.epoll_fd = validation_args['epollfd'] |
| 691 | |
| 692 | self.expect["epoll_wait_entry"]["epoll_wait_invalid_in"] = 0 |
| 693 | self.expect["epoll_wait_exit"]["epoll_wait_invalid_out"] = 0 |
| 694 | |
| 695 | def epoll_wait_entry(self, event): |
| 696 | epfd = event["epfd"] |
| 697 | maxevents = event["maxevents"] |
| 698 | timeout = event["timeout"] |
| 699 | |
| 700 | # test that event in valid even though the target buffer pointer is |
| 701 | # invalid and the program segfaults |
| 702 | if epfd == self.epoll_fd and maxevents == 1 and timeout == -1: |
| 703 | self.expect["epoll_wait_entry"]["epoll_wait_invalid_in"] = 1 |
| 704 | |
| 705 | # Save values of local variables to print in case of test failure |
| 706 | self.recorded_values["epoll_wait_entry"] = locals() |
| 707 | |
| 708 | def epoll_wait_exit(self, event): |
| 709 | ret = event["ret"] |
| 710 | fds_length = event["fds_length"] |
| 711 | overflow = event["overflow"] |
| 712 | |
| 713 | # test that event in valid even though the target buffer pointer is |
| 714 | # invalid and the program segfaults |
| 715 | if ret == -14 and fds_length == 0 and overflow == 0: |
| 716 | self.expect["epoll_wait_exit"]["epoll_wait_invalid_out"] = 1 |
| 717 | |
| 718 | # Save values of local variables to print in case of test failure |
| 719 | self.recorded_values["epoll_wait_exit"] = locals() |
| 720 | |
| 721 | |
| 722 | class Test9(TraceParser): |
| 723 | def __init__(self, trace, validation_args): |
| 724 | super().__init__(trace, validation_args['pid']) |
| 725 | |
| 726 | # Values expected in the trace |
| 727 | self.epoll_fd = validation_args['epollfd'] |
| 728 | |
| 729 | self.expect["epoll_wait_entry"]["epoll_wait_max_in"] = 0 |
| 730 | self.expect["epoll_wait_exit"]["epoll_wait_max_out"] = 0 |
| 731 | |
| 732 | def epoll_wait_entry(self, event): |
| 733 | epfd = event["epfd"] |
| 734 | maxevents = event["maxevents"] |
| 735 | timeout = event["timeout"] |
| 736 | |
| 737 | # check the proper working of INT_MAX maxevent value |
| 738 | if epfd == self.epoll_fd and maxevents == 2147483647 and timeout == -1: |
| 739 | self.expect["epoll_wait_entry"]["epoll_wait_max_in"] = 1 |
| 740 | |
| 741 | # Save values of local variables to print in case of test failure |
| 742 | self.recorded_values["epoll_wait_entry"] = locals() |
| 743 | |
| 744 | def epoll_wait_exit(self, event): |
| 745 | ret = event["ret"] |
| 746 | fds_length = event["fds_length"] |
| 747 | overflow = event["overflow"] |
| 748 | |
| 749 | # check the proper working of INT_MAX maxevent value |
| 750 | if ret == -22 and fds_length == 0 and overflow == 0: |
| 751 | self.expect["epoll_wait_exit"]["epoll_wait_max_out"] = 1 |
| 752 | |
| 753 | # Save values of local variables to print in case of test failure |
| 754 | self.recorded_values["epoll_wait_exit"] = locals() |
| 755 | |
| 756 | |
| 757 | if __name__ == "__main__": |
| 758 | parser = argparse.ArgumentParser(description='Trace parser') |
| 759 | parser.add_argument('path', metavar="<path/to/trace>", help='Trace path') |
| 760 | parser.add_argument('-t', '--test', type=int, help='Test to validate') |
| 761 | parser.add_argument('-o', '--validation-file', type=str, help='Validation file path') |
| 762 | args = parser.parse_args() |
| 763 | |
| 764 | if not args.test: |
| 765 | print("Need to pass a test to validate (--test/-t)") |
| 766 | sys.exit(1) |
| 767 | |
| 768 | if not args.validation_file: |
| 769 | print("Need to pass the test validation file (--validation-file/-o)") |
| 770 | sys.exit(1) |
| 771 | |
| 772 | traces = bt2.TraceCollectionMessageIterator(args.path) |
| 773 | |
| 774 | with open(args.validation_file) as f: |
| 775 | try: |
| 776 | test_validation_args = json.load(f) |
| 777 | except Exception as e: |
| 778 | print('Failed to parse validation file: ' + str(e)) |
| 779 | sys.exit(1) |
| 780 | |
| 781 | t = None |
| 782 | |
| 783 | if args.test == 1: |
| 784 | t = Test1(traces, test_validation_args) |
| 785 | elif args.test == 2: |
| 786 | t = Test2(traces, test_validation_args) |
| 787 | elif args.test == 3: |
| 788 | t = Test3(traces, test_validation_args) |
| 789 | elif args.test == 4: |
| 790 | t = Test4(traces, test_validation_args) |
| 791 | elif args.test == 5: |
| 792 | t = Test5(traces, test_validation_args) |
| 793 | elif args.test == 6: |
| 794 | t = Test6(traces, test_validation_args) |
| 795 | elif args.test == 7: |
| 796 | t = Test7(traces, test_validation_args) |
| 797 | elif args.test == 8: |
| 798 | t = Test8(traces, test_validation_args) |
| 799 | elif args.test == 9: |
| 800 | t = Test9(traces, test_validation_args) |
| 801 | elif args.test == 10: |
| 802 | # stress test, nothing reliable to check |
| 803 | ret = 0 |
| 804 | elif args.test == 11: |
| 805 | # stress test, nothing reliable to check |
| 806 | ret = 0 |
| 807 | else: |
| 808 | print("Invalid test case") |
| 809 | sys.exit(1) |
| 810 | |
| 811 | if t is not None: |
| 812 | ret = t.parse() |
| 813 | |
| 814 | sys.exit(ret) |