| 1 | #!/usr/bin/env python3 |
| 2 | |
| 3 | import sys |
| 4 | import time |
| 5 | import argparse |
| 6 | |
| 7 | NSEC_PER_SEC = 1000000000 |
| 8 | |
| 9 | try: |
| 10 | from babeltrace import TraceCollection |
| 11 | except ImportError: |
| 12 | # quick fix for debian-based distros |
| 13 | sys.path.append("/usr/local/lib/python%d.%d/site-packages" % |
| 14 | (sys.version_info.major, sys.version_info.minor)) |
| 15 | from babeltrace import TraceCollection |
| 16 | |
| 17 | |
| 18 | class TraceParser: |
| 19 | def __init__(self, trace, pid): |
| 20 | self.trace = trace |
| 21 | self.pid = pid |
| 22 | self.expect = {} |
| 23 | |
| 24 | def ns_to_hour_nsec(self, ns): |
| 25 | d = time.localtime(ns/NSEC_PER_SEC) |
| 26 | return "%02d:%02d:%02d.%09d" % (d.tm_hour, d.tm_min, d.tm_sec, |
| 27 | ns % NSEC_PER_SEC) |
| 28 | |
| 29 | def parse(self): |
| 30 | # iterate over all the events |
| 31 | for event in self.trace.events: |
| 32 | if self.pid is not None and event["pid"] != self.pid: |
| 33 | continue |
| 34 | |
| 35 | method_name = "handle_%s" % event.name.replace(":", "_").replace( |
| 36 | "+", "_") |
| 37 | # call the function to handle each event individually |
| 38 | if hasattr(TraceParser, method_name): |
| 39 | func = getattr(TraceParser, method_name) |
| 40 | func(self, event) |
| 41 | |
| 42 | ret = 0 |
| 43 | for i in self.expect.keys(): |
| 44 | if self.expect[i] == 0: |
| 45 | print("%s not validated" % i) |
| 46 | ret = 1 |
| 47 | |
| 48 | return ret |
| 49 | |
| 50 | # epoll_ctl |
| 51 | def handle_compat_syscall_entry_epoll_ctl(self, event): |
| 52 | self.epoll_ctl_entry(event) |
| 53 | |
| 54 | def handle_compat_syscall_exit_epoll_ctl(self, event): |
| 55 | self.epoll_ctl_exit(event) |
| 56 | |
| 57 | def handle_syscall_entry_epoll_ctl(self, event): |
| 58 | self.epoll_ctl_entry(event) |
| 59 | |
| 60 | def handle_syscall_exit_epoll_ctl(self, event): |
| 61 | self.epoll_ctl_exit(event) |
| 62 | |
| 63 | def epoll_ctl_entry(self, event): |
| 64 | pass |
| 65 | |
| 66 | def epoll_ctl_exit(self, event): |
| 67 | pass |
| 68 | |
| 69 | # epoll_wait + epoll_pwait |
| 70 | def handle_compat_syscall_entry_epoll_wait(self, event): |
| 71 | self.epoll_wait_entry(event) |
| 72 | |
| 73 | def handle_compat_syscall_exit_epoll_wait(self, event): |
| 74 | self.epoll_wait_exit(event) |
| 75 | |
| 76 | def handle_syscall_entry_epoll_wait(self, event): |
| 77 | self.epoll_wait_entry(event) |
| 78 | |
| 79 | def handle_syscall_exit_epoll_wait(self, event): |
| 80 | self.epoll_wait_exit(event) |
| 81 | |
| 82 | def handle_compat_syscall_entry_epoll_pwait(self, event): |
| 83 | self.epoll_wait_entry(event) |
| 84 | |
| 85 | def handle_compat_syscall_exit_epoll_pwait(self, event): |
| 86 | self.epoll_wait_exit(event) |
| 87 | |
| 88 | def handle_syscall_entry_epoll_pwait(self, event): |
| 89 | self.epoll_wait_entry(event) |
| 90 | |
| 91 | def handle_syscall_exit_epoll_pwait(self, event): |
| 92 | self.epoll_wait_exit(event) |
| 93 | |
| 94 | def epoll_wait_entry(self, event): |
| 95 | pass |
| 96 | |
| 97 | def epoll_wait_exit(self, event): |
| 98 | pass |
| 99 | |
| 100 | ## poll + ppoll |
| 101 | def handle_compat_syscall_entry_poll(self, event): |
| 102 | self.poll_entry(event) |
| 103 | |
| 104 | def handle_compat_syscall_exit_poll(self, event): |
| 105 | self.poll_exit(event) |
| 106 | |
| 107 | def handle_syscall_entry_poll(self, event): |
| 108 | self.poll_entry(event) |
| 109 | |
| 110 | def handle_syscall_exit_poll(self, event): |
| 111 | self.poll_exit(event) |
| 112 | |
| 113 | def handle_compat_syscall_entry_ppoll(self, event): |
| 114 | self.poll_entry(event) |
| 115 | |
| 116 | def handle_compat_syscall_exit_ppoll(self, event): |
| 117 | self.poll_exit(event) |
| 118 | |
| 119 | def handle_syscall_entry_ppoll(self, event): |
| 120 | self.poll_entry(event) |
| 121 | |
| 122 | def handle_syscall_exit_ppoll(self, event): |
| 123 | self.poll_exit(event) |
| 124 | |
| 125 | def poll_entry(self, event): |
| 126 | pass |
| 127 | |
| 128 | def poll_exit(self, event): |
| 129 | pass |
| 130 | |
| 131 | # epoll_create |
| 132 | def handle_compat_syscall_entry_epoll_create1(self, event): |
| 133 | self.epoll_create_entry(event) |
| 134 | |
| 135 | def handle_compat_syscall_exit_epoll_create1(self, event): |
| 136 | self.epoll_create_exit(event) |
| 137 | |
| 138 | def handle_compat_syscall_entry_epoll_create(self, event): |
| 139 | self.epoll_create_entry(event) |
| 140 | |
| 141 | def handle_compat_syscall_exit_epoll_create(self, event): |
| 142 | self.epoll_create_exit(event) |
| 143 | |
| 144 | def handle_syscall_entry_epoll_create1(self, event): |
| 145 | self.epoll_create_entry(event) |
| 146 | |
| 147 | def handle_syscall_exit_epoll_create1(self, event): |
| 148 | self.epoll_create_exit(event) |
| 149 | |
| 150 | def handle_syscall_entry_epoll_create(self, event): |
| 151 | self.epoll_create_entry(event) |
| 152 | |
| 153 | def handle_syscall_exit_epoll_create(self, event): |
| 154 | self.epoll_create_exit(event) |
| 155 | |
| 156 | def epoll_create_entry(self, event): |
| 157 | pass |
| 158 | |
| 159 | def epoll_create_exit(self, event): |
| 160 | pass |
| 161 | |
| 162 | # select + pselect6 |
| 163 | def handle_syscall_entry_pselect6(self, event): |
| 164 | self.select_entry(event) |
| 165 | |
| 166 | def handle_syscall_exit_pselect6(self, event): |
| 167 | self.select_exit(event) |
| 168 | |
| 169 | def handle_compat_syscall_entry_pselect6(self, event): |
| 170 | self.select_entry(event) |
| 171 | |
| 172 | def handle_compat_syscall_exit_pselect6(self, event): |
| 173 | self.select_exit(event) |
| 174 | |
| 175 | def handle_syscall_entry_select(self, event): |
| 176 | self.select_entry(event) |
| 177 | |
| 178 | def handle_syscall_exit_select(self, event): |
| 179 | self.select_exit(event) |
| 180 | |
| 181 | def handle_compat_syscall_entry_select(self, event): |
| 182 | self.select_entry(event) |
| 183 | |
| 184 | def handle_compat_syscall_exit_select(self, event): |
| 185 | self.select_exit(event) |
| 186 | |
| 187 | def select_entry(self, event): |
| 188 | pass |
| 189 | |
| 190 | def select_exit(self, event): |
| 191 | pass |
| 192 | |
| 193 | |
| 194 | class Test1(TraceParser): |
| 195 | def __init__(self, trace, pid): |
| 196 | super().__init__(trace, pid) |
| 197 | self.expect["select_in_fd0"] = 0 |
| 198 | self.expect["select_in_fd1023"] = 0 |
| 199 | self.expect["select_out_fd0"] = 0 |
| 200 | self.expect["select_out_fd1023"] = 0 |
| 201 | self.expect["poll_in_nfds1"] = 0 |
| 202 | self.expect["poll_out_nfds1"] = 0 |
| 203 | self.expect["epoll_ctl_in_add"] = 0 |
| 204 | self.expect["epoll_ctl_out_ok"] = 0 |
| 205 | self.expect["epoll_wait_in_ok"] = 0 |
| 206 | self.expect["epoll_wait_out_fd0"] = 0 |
| 207 | |
| 208 | def select_entry(self, event): |
| 209 | timestamp = event.timestamp |
| 210 | cpu_id = event["cpu_id"] |
| 211 | n = event["n"] |
| 212 | overflow = event["overflow"] |
| 213 | tvp = event["tvp"] |
| 214 | _readfds_length = event["_readfds_length"] |
| 215 | readfds = event["readfds"] |
| 216 | _writefds_length = event["_writefds_length"] |
| 217 | writefds = event["writefds"] |
| 218 | _exceptfds_length = event["_exceptfds_length"] |
| 219 | exceptfds = event["exceptfds"] |
| 220 | |
| 221 | # check that the FD 0 is actually set in the readfds |
| 222 | if n == 1 and readfds[0] == 1: |
| 223 | self.expect["select_in_fd0"] = 1 |
| 224 | if n == 1023: |
| 225 | # check that the FD 1023 is actually set in the readfds |
| 226 | if readfds[127] == 0x40 and writefds[127] == 0 and \ |
| 227 | exceptfds[127] == 0 and overflow == 0: |
| 228 | self.expect["select_in_fd1023"] = 1 |
| 229 | |
| 230 | def select_exit(self, event): |
| 231 | timestamp = event.timestamp |
| 232 | cpu_id = event["cpu_id"] |
| 233 | ret = event["ret"] |
| 234 | overflow = event["overflow"] |
| 235 | tvp = event["tvp"] |
| 236 | _readfds_length = event["_readfds_length"] |
| 237 | readfds = event["readfds"] |
| 238 | _writefds_length = event["_writefds_length"] |
| 239 | writefds = event["writefds"] |
| 240 | _exceptfds_length = event["_exceptfds_length"] |
| 241 | exceptfds = event["exceptfds"] |
| 242 | |
| 243 | if ret == 1: |
| 244 | # check that the FD 0 is actually set in the readfds |
| 245 | if readfds[0] == 1: |
| 246 | self.expect["select_out_fd0"] = 1 |
| 247 | # check that the FD 1023 is actually set in the readfds |
| 248 | if _readfds_length == 128 and readfds[127] == 0x40 and \ |
| 249 | writefds[127] == 0 and exceptfds[127] == 0 and tvp == 0: |
| 250 | self.expect["select_out_fd1023"] = 1 |
| 251 | |
| 252 | def poll_entry(self, event): |
| 253 | timestamp = event.timestamp |
| 254 | cpu_id = event["cpu_id"] |
| 255 | nfds = event["nfds"] |
| 256 | fds_length = event["fds_length"] |
| 257 | overflow = event["overflow"] |
| 258 | fds = event["fds"] |
| 259 | |
| 260 | # check that only one FD is set, that it has the POLLIN flag and that |
| 261 | # the raw value matches the events bit field. |
| 262 | if nfds == 1 and fds_length == 1 and fds[0]["raw_events"] == 0x3 \ |
| 263 | and fds[0]["events"]["POLLIN"] == 1 and \ |
| 264 | fds[0]["events"]["padding"] == 0: |
| 265 | self.expect["poll_in_nfds1"] = 1 |
| 266 | |
| 267 | def poll_exit(self, event): |
| 268 | timestamp = event.timestamp |
| 269 | cpu_id = event["cpu_id"] |
| 270 | ret = event["ret"] |
| 271 | nfds = event["nfds"] |
| 272 | fds_length = event["fds_length"] |
| 273 | fds = event["fds"] |
| 274 | |
| 275 | # check that only one FD is set, that it has the POLLIN flag and that |
| 276 | # the raw value matches the events bit field. |
| 277 | if ret == 1 and fds_length == 1 and fds[0]["raw_events"] == 0x1 \ |
| 278 | and fds[0]["events"]["POLLIN"] == 1 and \ |
| 279 | fds[0]["events"]["padding"] == 0: |
| 280 | self.expect["poll_out_nfds1"] = 1 |
| 281 | |
| 282 | def epoll_ctl_entry(self, event): |
| 283 | timestamp = event.timestamp |
| 284 | cpu_id = event["cpu_id"] |
| 285 | epfd = event["epfd"] |
| 286 | op_enum = event["op_enum"] |
| 287 | fd = event["fd"] |
| 288 | _event = event["event"] |
| 289 | |
| 290 | # check that we have FD 0 waiting for EPOLLIN|EPOLLPRI and that |
| 291 | # data.fd = 0 |
| 292 | if epfd == 3 and op_enum == "EPOLL_CTL_ADD" and fd == 0 and \ |
| 293 | _event["data_union"]["fd"] == 0 and \ |
| 294 | _event["events"]["EPOLLIN"] == 1 and \ |
| 295 | _event["events"]["EPOLLPRI"] == 1: |
| 296 | self.expect["epoll_ctl_in_add"] = 1 |
| 297 | |
| 298 | def epoll_ctl_exit(self, event): |
| 299 | timestamp = event.timestamp |
| 300 | cpu_id = event["cpu_id"] |
| 301 | ret = event["ret"] |
| 302 | |
| 303 | if ret == 0: |
| 304 | self.expect["epoll_ctl_out_ok"] = 1 |
| 305 | |
| 306 | def epoll_wait_entry(self, event): |
| 307 | timestamp = event.timestamp |
| 308 | cpu_id = event["cpu_id"] |
| 309 | epfd = event["epfd"] |
| 310 | maxevents = event["maxevents"] |
| 311 | timeout = event["timeout"] |
| 312 | |
| 313 | if epfd == 3 and maxevents == 1 and timeout == -1: |
| 314 | self.expect["epoll_wait_in_ok"] = 1 |
| 315 | |
| 316 | def epoll_wait_exit(self, event): |
| 317 | timestamp = event.timestamp |
| 318 | cpu_id = event["cpu_id"] |
| 319 | ret = event["ret"] |
| 320 | fds_length = event["fds_length"] |
| 321 | overflow = event["overflow"] |
| 322 | fds = event["fds"] |
| 323 | |
| 324 | # check that FD 0 returned with EPOLLIN and the right data.fd |
| 325 | if ret == 1 and fds_length == 1 and overflow == 0 and \ |
| 326 | fds[0]["data_union"]["fd"] == 0 and \ |
| 327 | fds[0]["events"]["EPOLLIN"] == 1: |
| 328 | self.expect["epoll_wait_out_fd0"] = 1 |
| 329 | |
| 330 | |
| 331 | class Test2(TraceParser): |
| 332 | def __init__(self, trace, pid): |
| 333 | super().__init__(trace, pid) |
| 334 | self.expect["select_timeout_in_fd0"] = 0 |
| 335 | self.expect["select_timeout_in_fd1023"] = 0 |
| 336 | self.expect["select_timeout_out"] = 0 |
| 337 | self.expect["poll_timeout_in"] = 0 |
| 338 | self.expect["poll_timeout_out"] = 0 |
| 339 | self.expect["epoll_ctl_timeout_in_add"] = 0 |
| 340 | self.expect["epoll_ctl_timeout_out_ok"] = 0 |
| 341 | self.expect["epoll_wait_timeout_in"] = 0 |
| 342 | self.expect["epoll_wait_timeout_out"] = 0 |
| 343 | |
| 344 | def select_entry(self, event): |
| 345 | timestamp = event.timestamp |
| 346 | cpu_id = event["cpu_id"] |
| 347 | n = event["n"] |
| 348 | overflow = event["overflow"] |
| 349 | tvp = event["tvp"] |
| 350 | _readfds_length = event["_readfds_length"] |
| 351 | readfds = event["readfds"] |
| 352 | _writefds_length = event["_writefds_length"] |
| 353 | writefds = event["writefds"] |
| 354 | _exceptfds_length = event["_exceptfds_length"] |
| 355 | exceptfds = event["exceptfds"] |
| 356 | |
| 357 | if n == 1 and tvp != 0: |
| 358 | self.expect["select_timeout_in_fd0"] = 1 |
| 359 | if n == 1023: |
| 360 | if readfds[127] == 0x40 and writefds[127] == 0 and \ |
| 361 | exceptfds[127] == 0 and tvp != 0: |
| 362 | self.expect["select_timeout_in_fd1023"] = 1 |
| 363 | |
| 364 | def select_exit(self, event): |
| 365 | timestamp = event.timestamp |
| 366 | cpu_id = event["cpu_id"] |
| 367 | ret = event["ret"] |
| 368 | overflow = event["overflow"] |
| 369 | tvp = event["tvp"] |
| 370 | _readfds_length = event["_readfds_length"] |
| 371 | readfds = event["readfds"] |
| 372 | _writefds_length = event["_writefds_length"] |
| 373 | writefds = event["writefds"] |
| 374 | _exceptfds_length = event["_exceptfds_length"] |
| 375 | exceptfds = event["exceptfds"] |
| 376 | |
| 377 | if ret == 0 and tvp != 0: |
| 378 | self.expect["select_timeout_out"] = 1 |
| 379 | |
| 380 | def poll_entry(self, event): |
| 381 | timestamp = event.timestamp |
| 382 | cpu_id = event["cpu_id"] |
| 383 | nfds = event["nfds"] |
| 384 | fds_length = event["fds_length"] |
| 385 | overflow = event["overflow"] |
| 386 | fds = event["fds"] |
| 387 | |
| 388 | # check that we wait on FD 0 for POLLIN and that the raw_events |
| 389 | # field matches the value of POLLIN |
| 390 | if nfds == 1 and fds_length == 1 and fds[0]["raw_events"] == 0x3 \ |
| 391 | and fds[0]["events"]["POLLIN"] == 1 and \ |
| 392 | fds[0]["events"]["padding"] == 0: |
| 393 | self.expect["poll_timeout_in"] = 1 |
| 394 | |
| 395 | def poll_exit(self, event): |
| 396 | timestamp = event.timestamp |
| 397 | cpu_id = event["cpu_id"] |
| 398 | ret = event["ret"] |
| 399 | nfds = event["nfds"] |
| 400 | fds_length = event["fds_length"] |
| 401 | fds = event["fds"] |
| 402 | |
| 403 | if ret == 0 and nfds == 1 and fds_length == 0: |
| 404 | self.expect["poll_timeout_out"] = 1 |
| 405 | |
| 406 | def epoll_ctl_entry(self, event): |
| 407 | timestamp = event.timestamp |
| 408 | cpu_id = event["cpu_id"] |
| 409 | epfd = event["epfd"] |
| 410 | op_enum = event["op_enum"] |
| 411 | fd = event["fd"] |
| 412 | _event = event["event"] |
| 413 | |
| 414 | # make sure we see a EPOLLIN|EPOLLPRI |
| 415 | if op_enum == "EPOLL_CTL_ADD" and \ |
| 416 | _event["events"]["EPOLLIN"] == 1 and \ |
| 417 | _event["events"]["EPOLLPRI"] == 1: |
| 418 | self.expect["epoll_ctl_timeout_in_add"] = 1 |
| 419 | |
| 420 | def epoll_ctl_exit(self, event): |
| 421 | timestamp = event.timestamp |
| 422 | cpu_id = event["cpu_id"] |
| 423 | ret = event["ret"] |
| 424 | |
| 425 | if ret == 0: |
| 426 | self.expect["epoll_ctl_timeout_out_ok"] = 1 |
| 427 | |
| 428 | def epoll_wait_entry(self, event): |
| 429 | timestamp = event.timestamp |
| 430 | cpu_id = event["cpu_id"] |
| 431 | epfd = event["epfd"] |
| 432 | maxevents = event["maxevents"] |
| 433 | timeout = event["timeout"] |
| 434 | |
| 435 | if maxevents == 1 and timeout == 1: |
| 436 | self.expect["epoll_wait_timeout_in"] = 1 |
| 437 | |
| 438 | def epoll_wait_exit(self, event): |
| 439 | timestamp = event.timestamp |
| 440 | cpu_id = event["cpu_id"] |
| 441 | ret = event["ret"] |
| 442 | fds_length = event["fds_length"] |
| 443 | overflow = event["overflow"] |
| 444 | fds = event["fds"] |
| 445 | |
| 446 | if ret == 0 and fds_length == 0 and overflow == 0: |
| 447 | self.expect["epoll_wait_timeout_out"] = 1 |
| 448 | |
| 449 | |
| 450 | class Test3(TraceParser): |
| 451 | def __init__(self, trace, pid): |
| 452 | super().__init__(trace, pid) |
| 453 | self.expect["select_too_big_in"] = 0 |
| 454 | self.expect["select_too_big_out"] = 0 |
| 455 | |
| 456 | def select_entry(self, event): |
| 457 | timestamp = event.timestamp |
| 458 | cpu_id = event["cpu_id"] |
| 459 | n = event["n"] |
| 460 | overflow = event["overflow"] |
| 461 | tvp = event["tvp"] |
| 462 | _readfds_length = event["_readfds_length"] |
| 463 | readfds = event["readfds"] |
| 464 | _writefds_length = event["_writefds_length"] |
| 465 | writefds = event["writefds"] |
| 466 | _exceptfds_length = event["_exceptfds_length"] |
| 467 | exceptfds = event["exceptfds"] |
| 468 | |
| 469 | # make sure an invalid value still produces a valid event |
| 470 | if n == 2048 and overflow == 0 and _readfds_length == 0: |
| 471 | self.expect["select_too_big_in"] = 1 |
| 472 | |
| 473 | def select_exit(self, event): |
| 474 | timestamp = event.timestamp |
| 475 | cpu_id = event["cpu_id"] |
| 476 | ret = event["ret"] |
| 477 | overflow = event["overflow"] |
| 478 | tvp = event["tvp"] |
| 479 | _readfds_length = event["_readfds_length"] |
| 480 | readfds = event["readfds"] |
| 481 | _writefds_length = event["_writefds_length"] |
| 482 | writefds = event["writefds"] |
| 483 | _exceptfds_length = event["_exceptfds_length"] |
| 484 | exceptfds = event["exceptfds"] |
| 485 | |
| 486 | # make sure an invalid value still produces a valid event |
| 487 | if ret == -9 and overflow == 0 and _readfds_length == 0: |
| 488 | self.expect["select_too_big_out"] = 1 |
| 489 | |
| 490 | |
| 491 | class Test4(TraceParser): |
| 492 | def __init__(self, trace, pid): |
| 493 | super().__init__(trace, pid) |
| 494 | self.expect["big_poll_in"] = 0 |
| 495 | self.expect["big_poll_out"] = 0 |
| 496 | |
| 497 | def poll_entry(self, event): |
| 498 | timestamp = event.timestamp |
| 499 | cpu_id = event["cpu_id"] |
| 500 | nfds = event["nfds"] |
| 501 | fds_length = event["fds_length"] |
| 502 | overflow = event["overflow"] |
| 503 | fds = event["fds"] |
| 504 | |
| 505 | # test of big list of FDs and the behaviour of the overflow |
| 506 | if nfds == 2047 and fds_length == 512 and overflow == 1 and \ |
| 507 | fds[0]["raw_events"] == 0x3 \ |
| 508 | and fds[0]["events"]["POLLIN"] == 1 and \ |
| 509 | fds[0]["events"]["padding"] == 0 and \ |
| 510 | fds[511]["events"]["POLLIN"] == 1 and \ |
| 511 | fds[511]["events"]["POLLPRI"] == 1: |
| 512 | self.expect["big_poll_in"] = 1 |
| 513 | |
| 514 | def poll_exit(self, event): |
| 515 | timestamp = event.timestamp |
| 516 | cpu_id = event["cpu_id"] |
| 517 | ret = event["ret"] |
| 518 | nfds = event["nfds"] |
| 519 | fds_length = event["fds_length"] |
| 520 | overflow = event["overflow"] |
| 521 | fds = event["fds"] |
| 522 | |
| 523 | # test of big list of FDs and the behaviour of the overflow |
| 524 | if ret == 2047 and nfds == 2047 and fds_length == 512 and \ |
| 525 | overflow == 1 and fds[0]["events"]["POLLIN"] == 1 and \ |
| 526 | fds[511]["events"]["POLLIN"] == 1: |
| 527 | self.expect["big_poll_out"] = 1 |
| 528 | |
| 529 | |
| 530 | class Test5(TraceParser): |
| 531 | def __init__(self, trace, pid): |
| 532 | super().__init__(trace, pid) |
| 533 | self.expect["poll_overflow_in"] = 0 |
| 534 | self.expect["poll_overflow_out"] = 0 |
| 535 | |
| 536 | def poll_entry(self, event): |
| 537 | timestamp = event.timestamp |
| 538 | cpu_id = event["cpu_id"] |
| 539 | nfds = event["nfds"] |
| 540 | fds_length = event["fds_length"] |
| 541 | overflow = event["overflow"] |
| 542 | fds = event["fds"] |
| 543 | |
| 544 | # test that event in valid even though the target buffer is too small |
| 545 | # and the program segfaults |
| 546 | if nfds == 100 and fds_length == 100 and overflow == 0 and \ |
| 547 | fds[0]["events"]["POLLIN"] == 1: |
| 548 | self.expect["poll_overflow_in"] = 1 |
| 549 | |
| 550 | def poll_exit(self, event): |
| 551 | timestamp = event.timestamp |
| 552 | cpu_id = event["cpu_id"] |
| 553 | ret = event["ret"] |
| 554 | nfds = event["nfds"] |
| 555 | fds_length = event["fds_length"] |
| 556 | overflow = event["overflow"] |
| 557 | fds = event["fds"] |
| 558 | |
| 559 | # test that event in valid even though the target buffer is too small |
| 560 | # and the program segfaults |
| 561 | if nfds == 100 and overflow == 0: |
| 562 | self.expect["poll_overflow_out"] = 1 |
| 563 | |
| 564 | |
| 565 | class Test6(TraceParser): |
| 566 | def __init__(self, trace, pid): |
| 567 | super().__init__(trace, pid) |
| 568 | self.expect["pselect_invalid_in"] = 0 |
| 569 | self.expect["pselect_invalid_out"] = 0 |
| 570 | |
| 571 | def select_entry(self, event): |
| 572 | timestamp = event.timestamp |
| 573 | cpu_id = event["cpu_id"] |
| 574 | n = event["n"] |
| 575 | overflow = event["overflow"] |
| 576 | tvp = event["tvp"] |
| 577 | _readfds_length = event["_readfds_length"] |
| 578 | readfds = event["readfds"] |
| 579 | _writefds_length = event["_writefds_length"] |
| 580 | writefds = event["writefds"] |
| 581 | _exceptfds_length = event["_exceptfds_length"] |
| 582 | exceptfds = event["exceptfds"] |
| 583 | |
| 584 | # test that event in valid even though the target buffer pointer is |
| 585 | # invalid and the program segfaults |
| 586 | if n == 1 and overflow == 0 and _readfds_length == 0: |
| 587 | self.expect["pselect_invalid_in"] = 1 |
| 588 | |
| 589 | def select_exit(self, event): |
| 590 | timestamp = event.timestamp |
| 591 | cpu_id = event["cpu_id"] |
| 592 | ret = event["ret"] |
| 593 | overflow = event["overflow"] |
| 594 | tvp = event["tvp"] |
| 595 | _readfds_length = event["_readfds_length"] |
| 596 | readfds = event["readfds"] |
| 597 | _writefds_length = event["_writefds_length"] |
| 598 | writefds = event["writefds"] |
| 599 | _exceptfds_length = event["_exceptfds_length"] |
| 600 | exceptfds = event["exceptfds"] |
| 601 | |
| 602 | # test that event in valid even though the target buffer pointer is |
| 603 | # invalid and the program segfaults |
| 604 | if ret == -14 and overflow == 0 and _readfds_length == 0: |
| 605 | self.expect["pselect_invalid_out"] = 1 |
| 606 | |
| 607 | |
| 608 | class Test7(TraceParser): |
| 609 | def __init__(self, trace, pid): |
| 610 | super().__init__(trace, pid) |
| 611 | self.expect["poll_max_in"] = 0 |
| 612 | self.expect["poll_max_out"] = 0 |
| 613 | |
| 614 | def poll_entry(self, event): |
| 615 | timestamp = event.timestamp |
| 616 | cpu_id = event["cpu_id"] |
| 617 | nfds = event["nfds"] |
| 618 | fds_length = event["fds_length"] |
| 619 | overflow = event["overflow"] |
| 620 | fds = event["fds"] |
| 621 | |
| 622 | # check the proper working of INT_MAX maxevent value |
| 623 | if nfds == 4294967295 and overflow == 1: |
| 624 | self.expect["poll_max_in"] = 1 |
| 625 | |
| 626 | def poll_exit(self, event): |
| 627 | timestamp = event.timestamp |
| 628 | cpu_id = event["cpu_id"] |
| 629 | ret = event["ret"] |
| 630 | nfds = event["nfds"] |
| 631 | fds_length = event["fds_length"] |
| 632 | overflow = event["overflow"] |
| 633 | fds = event["fds"] |
| 634 | |
| 635 | # check the proper working of UINT_MAX maxevent value |
| 636 | if ret == -22 and nfds == 4294967295 and overflow == 0: |
| 637 | self.expect["poll_max_out"] = 1 |
| 638 | |
| 639 | |
| 640 | class Test8(TraceParser): |
| 641 | def __init__(self, trace, pid): |
| 642 | super().__init__(trace, pid) |
| 643 | self.expect["epoll_wait_invalid_in"] = 0 |
| 644 | self.expect["epoll_wait_invalid_out"] = 0 |
| 645 | |
| 646 | def epoll_wait_entry(self, event): |
| 647 | timestamp = event.timestamp |
| 648 | cpu_id = event["cpu_id"] |
| 649 | epfd = event["epfd"] |
| 650 | maxevents = event["maxevents"] |
| 651 | timeout = event["timeout"] |
| 652 | |
| 653 | # test that event in valid even though the target buffer pointer is |
| 654 | # invalid and the program segfaults |
| 655 | if epfd == 3 and maxevents == 1 and timeout == -1: |
| 656 | self.expect["epoll_wait_invalid_in"] = 1 |
| 657 | |
| 658 | def epoll_wait_exit(self, event): |
| 659 | timestamp = event.timestamp |
| 660 | cpu_id = event["cpu_id"] |
| 661 | ret = event["ret"] |
| 662 | fds_length = event["fds_length"] |
| 663 | overflow = event["overflow"] |
| 664 | fds = event["fds"] |
| 665 | |
| 666 | # test that event in valid even though the target buffer pointer is |
| 667 | # invalid and the program segfaults |
| 668 | if ret == -14 and fds_length == 0 and overflow == 0: |
| 669 | self.expect["epoll_wait_invalid_out"] = 1 |
| 670 | |
| 671 | |
| 672 | class Test9(TraceParser): |
| 673 | def __init__(self, trace, pid): |
| 674 | super().__init__(trace, pid) |
| 675 | self.expect["epoll_wait_max_in"] = 0 |
| 676 | self.expect["epoll_wait_max_out"] = 0 |
| 677 | |
| 678 | def epoll_wait_entry(self, event): |
| 679 | timestamp = event.timestamp |
| 680 | cpu_id = event["cpu_id"] |
| 681 | epfd = event["epfd"] |
| 682 | maxevents = event["maxevents"] |
| 683 | timeout = event["timeout"] |
| 684 | |
| 685 | # check the proper working of INT_MAX maxevent value |
| 686 | if epfd == 3 and maxevents == 2147483647 and timeout == -1: |
| 687 | self.expect["epoll_wait_max_in"] = 1 |
| 688 | |
| 689 | def epoll_wait_exit(self, event): |
| 690 | timestamp = event.timestamp |
| 691 | cpu_id = event["cpu_id"] |
| 692 | ret = event["ret"] |
| 693 | fds_length = event["fds_length"] |
| 694 | overflow = event["overflow"] |
| 695 | fds = event["fds"] |
| 696 | |
| 697 | # check the proper working of INT_MAX maxevent value |
| 698 | if ret == -22 and fds_length == 0 and overflow == 0: |
| 699 | self.expect["epoll_wait_max_out"] = 1 |
| 700 | |
| 701 | |
| 702 | if __name__ == "__main__": |
| 703 | parser = argparse.ArgumentParser(description='Trace parser') |
| 704 | parser.add_argument('path', metavar="<path/to/trace>", help='Trace path') |
| 705 | parser.add_argument('-t', '--test', type=int, help='Test to validate') |
| 706 | parser.add_argument('-p', '--pid', type=int, help='PID of the app') |
| 707 | args = parser.parse_args() |
| 708 | |
| 709 | if not args.test: |
| 710 | print("Need to pass a test to validate (-t)") |
| 711 | sys.exit(1) |
| 712 | |
| 713 | if not args.pid: |
| 714 | print("Need to pass the PID to check (-p)") |
| 715 | sys.exit(1) |
| 716 | |
| 717 | traces = TraceCollection() |
| 718 | handle = traces.add_traces_recursive(args.path, "ctf") |
| 719 | if handle is None: |
| 720 | sys.exit(1) |
| 721 | |
| 722 | t = None |
| 723 | |
| 724 | if args.test == 1: |
| 725 | t = Test1(traces, args.pid) |
| 726 | elif args.test == 2: |
| 727 | t = Test2(traces, args.pid) |
| 728 | elif args.test == 3: |
| 729 | t = Test3(traces, args.pid) |
| 730 | elif args.test == 4: |
| 731 | t = Test4(traces, args.pid) |
| 732 | elif args.test == 5: |
| 733 | t = Test5(traces, args.pid) |
| 734 | elif args.test == 6: |
| 735 | t = Test6(traces, args.pid) |
| 736 | elif args.test == 7: |
| 737 | t = Test7(traces, args.pid) |
| 738 | elif args.test == 8: |
| 739 | t = Test8(traces, args.pid) |
| 740 | elif args.test == 9: |
| 741 | t = Test9(traces, args.pid) |
| 742 | elif args.test == 10: |
| 743 | # stress test, nothing reliable to check |
| 744 | ret = 0 |
| 745 | elif args.test == 11: |
| 746 | # stress test, nothing reliable to check |
| 747 | ret = 0 |
| 748 | else: |
| 749 | print("Invalid test case") |
| 750 | sys.exit(1) |
| 751 | |
| 752 | if t is not None: |
| 753 | ret = t.parse() |
| 754 | |
| 755 | for h in handle.values(): |
| 756 | traces.remove_trace(h) |
| 757 | |
| 758 | sys.exit(ret) |