tests/regression/kernel/test_syscall

   1 #!/bin/bash
   2 #
   3 # Copyright (C) 2013 Christian Babeux <christian.babeux@efficios.com>
   4 # Copyright (C) 2014 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   5 #
   6 # SPDX-License-Identifier: GPL-2.0-only
   7 #
   8
   9 TEST_DESC="Kernel tracer - System calls"
  10
  11 CURDIR=$(dirname $0)/
  12 TESTDIR=$CURDIR/../..
  13 NUM_TESTS=214
  14
  15 # `gen-syscall-event` starts and waits for the creation a file passed by
  16 # arguments to start executing 3 syscalls (open,read,close) and returning.
  17 TESTCMD="$TESTDIR/utils/testapp/gen-syscall-events/gen-syscall-events"
  18
  19 source $TESTDIR/utils/utils.sh
  20
  21 function trace_testapp()
  22 {
  23         local start_file_sync=$(mktemp --tmpdir -u -t "tmp.${FUNCNAME[0]}_sync_start.XXXXXX")
  24
  25         # Clear all entries from the resource tracker
  26         lttng_untrack_kernel_all_ok
  27
  28         # Launch the testapp and save its Process ID
  29         ./"$TESTCMD" "$start_file_sync" "/proc/cpuinfo" "/proc/cmdline" &
  30         PID=$!
  31
  32         # Set LTTng to track this PID and start the tracing
  33         lttng_track_pid_ok $PID
  34
  35         start_lttng_tracing_ok
  36
  37         # Create start file to launch the execution of the workload by the
  38         # test app
  39         touch "$start_file_sync"
  40
  41         wait $PID
  42
  43         stop_lttng_tracing_ok
  44
  45         # Clean up the synchronization file
  46         rm -f "$start_file_sync"
  47 }
  48
  49 function validate_list()
  50 {
  51         local session_name=$1
  52         local event_name=$2
  53         local opt=$3
  54
  55         out=$($TESTDIR/../src/bin/lttng/$LTTNG_BIN list $session_name $opt | grep $event_name)
  56         if [ -z "$out" ]; then
  57                 fail "Validate syscall listing"
  58                 diag "$event_name not found when listing $session_name (opt $opt)"
  59         else
  60                 pass "Validate syscall listing. Found $event_name."
  61         fi
  62 }
  63
  64 function test_syscall_event_list()
  65 {
  66         local EVENT_NAME="getpid"
  67
  68         diag "Syscall event listing"
  69
  70         validate_list "" $EVENT_NAME "-k --syscall"
  71 }
  72
  73 function test_syscall_simple_list()
  74 {
  75         local TRACE_PATH=$(mktemp --tmpdir -d -t "tmp.${FUNCNAME[0]}_trace_path.XXXXXX")
  76         SESSION_NAME="kernel_syscall_simple_list"
  77         local EVENT_NAME="close"
  78
  79         diag "Syscall simple listing"
  80
  81         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
  82
  83         lttng_enable_kernel_syscall_ok $SESSION_NAME $EVENT_NAME
  84
  85         validate_list $SESSION_NAME $EVENT_NAME
  86
  87         trace_testapp
  88
  89         # ensure all events are in the trace.
  90         validate_trace_exp "-e syscall_entry_$EVENT_NAME: -e compat_syscall_entry_$EVENT_NAME:" $TRACE_PATH
  91         validate_trace_exp "-e syscall_exit_$EVENT_NAME: -e compat_syscall_exit_$EVENT_NAME:" $TRACE_PATH
  92
  93         # ensure trace only contains those.
  94         validate_trace_only_exp "-e syscall_entry_$EVENT_NAME: -e compat_syscall_entry_$EVENT_NAME: -e syscall_exit_$EVENT_NAME: -e compat_syscall_exit_$EVENT_NAME:" $TRACE_PATH
  95
  96         destroy_lttng_session_ok $SESSION_NAME
  97
  98         rm -rf $TRACE_PATH
  99 }
 100
 101 function test_syscall_simple_list_two()
 102 {
 103         local TRACE_PATH=$(mktemp --tmpdir -d -t "tmp.${FUNCNAME[0]}_trace_path.XXXXXX")
 104         SESSION_NAME="kernel_syscall_simple_list_two"
 105         local EVENT_NAME="close"
 106         local EVENT_NAME2="read"
 107
 108         diag "Syscall simple listing"
 109
 110         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 111
 112         lttng_enable_kernel_syscall_ok $SESSION_NAME $EVENT_NAME
 113         lttng_enable_kernel_syscall_ok $SESSION_NAME $EVENT_NAME2
 114
 115         validate_list $SESSION_NAME $EVENT_NAME
 116         validate_list $SESSION_NAME $EVENT_NAME2
 117
 118         trace_testapp
 119
 120         # ensure all events are in the trace.
 121         validate_trace_exp "-e syscall_entry_$EVENT_NAME: -e compat_syscall_entry_$EVENT_NAME:" $TRACE_PATH
 122         validate_trace_exp "-e syscall_exit_$EVENT_NAME: -e compat_syscall_exit_$EVENT_NAME:" $TRACE_PATH
 123
 124         validate_trace_exp "-e syscall_entry_$EVENT_NAME2: -e compat_syscall_entry_$EVENT_NAME2:" $TRACE_PATH
 125         validate_trace_exp "-e syscall_exit_$EVENT_NAME2: -e compat_syscall_exit_$EVENT_NAME2:" $TRACE_PATH
 126
 127         # ensure trace only contains those.
 128         validate_trace_only_exp "-e syscall_entry_$EVENT_NAME: -e compat_syscall_entry_$EVENT_NAME: -e syscall_exit_$EVENT_NAME: -e compat_syscall_exit_$EVENT_NAME: -e syscall_entry_$EVENT_NAME2: -e compat_syscall_entry_$EVENT_NAME2: -e syscall_exit_$EVENT_NAME2: -e compat_syscall_exit_$EVENT_NAME2:" $TRACE_PATH
 129
 130         destroy_lttng_session_ok $SESSION_NAME
 131
 132         rm -rf $TRACE_PATH
 133 }
 134
 135 function test_syscall_single()
 136 {
 137         local TRACE_PATH=$(mktemp --tmpdir -d -t "tmp.${FUNCNAME[0]}_trace_path.XXXXXX")
 138         SESSION_NAME="kernel_syscall_single"
 139
 140         diag "Syscall trace single"
 141
 142         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 143
 144         lttng_enable_kernel_syscall_ok $SESSION_NAME "openat"
 145
 146         trace_testapp
 147
 148         # ensure all events are in the trace.
 149         validate_trace_exp "-e syscall_entry_openat: -e compat_syscall_entry_openat:" $TRACE_PATH
 150         validate_trace_exp "-e syscall_exit_openat: -e compat_syscall_exit_openat:" $TRACE_PATH
 151
 152         # ensure trace only contains those.
 153         validate_trace_only_exp "-e syscall_entry_openat: -e compat_syscall_entry_openat: -e syscall_exit_openat: -e compat_syscall_exit_openat:" $TRACE_PATH
 154
 155         destroy_lttng_session_ok $SESSION_NAME
 156
 157         rm -rf $TRACE_PATH
 158 }
 159
 160 function test_syscall_two()
 161 {
 162         local TRACE_PATH=$(mktemp --tmpdir -d -t "tmp.${FUNCNAME[0]}_trace_path.XXXXXX")
 163         SESSION_NAME="kernel_syscall_two"
 164
 165         diag "Syscall trace two events"
 166
 167         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 168
 169         lttng_enable_kernel_syscall_ok $SESSION_NAME "openat"
 170         lttng_enable_kernel_syscall_ok $SESSION_NAME "close"
 171
 172         trace_testapp
 173
 174         # ensure all events are in the trace.
 175         validate_trace_exp "-e syscall_entry_openat: -e compat_syscall_entry_openat:" $TRACE_PATH
 176         validate_trace_exp "-e syscall_exit_openat: -e compat_syscall_exit_openat:" $TRACE_PATH
 177         validate_trace_exp "-e syscall_entry_close: -e compat_syscall_entry_close:" $TRACE_PATH
 178         validate_trace_exp "-e syscall_exit_close: -e compat_syscall_exit_close:" $TRACE_PATH
 179
 180         # ensure trace only contains those.
 181         validate_trace_only_exp "-e syscall_entry_openat: -e compat_syscall_entry_openat: -e syscall_exit_openat: -e compat_syscall_exit_openat: -e syscall_entry_close: -e compat_syscall_entry_close: -e syscall_exit_close: -e compat_syscall_exit_close:" $TRACE_PATH
 182
 183         destroy_lttng_session_ok $SESSION_NAME
 184
 185         rm -rf $TRACE_PATH
 186 }
 187
 188 function test_syscall_all()
 189 {
 190         local TRACE_PATH=$(mktemp --tmpdir -d -t "tmp.${FUNCNAME[0]}_trace_path.XXXXXX")
 191         SESSION_NAME="kernel_syscall_all"
 192
 193         diag "Syscall trace all events"
 194
 195         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 196
 197         # enable all syscalls
 198         lttng_enable_kernel_syscall_ok $SESSION_NAME
 199
 200         trace_testapp
 201
 202         # ensure at least open and close are there.
 203         validate_trace_exp "-e syscall_entry_openat: -e compat_syscall_entry_openat:" $TRACE_PATH
 204         validate_trace_exp "-e syscall_exit_openat: -e compat_syscall_exit_openat:" $TRACE_PATH
 205         validate_trace_exp "-e syscall_entry_close: -e compat_syscall_entry_close:" $TRACE_PATH
 206         validate_trace_exp "-e syscall_exit_close: -e compat_syscall_exit_close:" $TRACE_PATH
 207         # trace may contain other syscalls.
 208
 209         destroy_lttng_session_ok $SESSION_NAME
 210
 211         rm -rf $TRACE_PATH
 212 }
 213
 214 function test_syscall_all_disable_one()
 215 {
 216         local TRACE_PATH=$(mktemp --tmpdir -d -t "tmp.${FUNCNAME[0]}_trace_path.XXXXXX")
 217         SESSION_NAME="kernel_syscall_all_disable_one"
 218
 219         diag "Syscall trace all events and disable one"
 220
 221         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 222
 223         # enable all syscalls
 224         lttng_enable_kernel_syscall_ok $SESSION_NAME
 225         # try to disable open system call: fails because enabler semantic of
 226         # "all syscalls" is not "the open" system call.
 227         lttng_disable_kernel_syscall_fail $SESSION_NAME "openat"
 228
 229         trace_testapp
 230
 231         # ensure "openat" syscall is there.
 232         validate_trace_exp "-e syscall_entry_openat: -e compat_syscall_entry_openat: -e syscall_exit_openat: -e compat_syscall_exit_openat:" $TRACE_PATH
 233
 234         # ensure "close" syscall is there.
 235         validate_trace_exp "-e syscall_entry_close: -e compat_syscall_entry_close:" $TRACE_PATH
 236         validate_trace_exp "-e syscall_exit_close: -e compat_syscall_exit_close:" $TRACE_PATH
 237
 238         destroy_lttng_session_ok $SESSION_NAME
 239
 240         rm -rf $TRACE_PATH
 241 }
 242
 243 function test_syscall_all_disable_two()
 244 {
 245         local TRACE_PATH=$(mktemp --tmpdir -d -t "tmp.${FUNCNAME[0]}_trace_path.XXXXXX")
 246         SESSION_NAME="kernel_syscall_all_disable_two"
 247
 248         diag "Syscall trace all events and disable two"
 249
 250         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 251
 252         # enable all syscalls
 253         lttng_enable_kernel_syscall_ok $SESSION_NAME
 254         # try to disable open and close system calls: fails because enabler
 255         # semantic of "all syscalls" is not "the open" system call.
 256         lttng_disable_kernel_syscall_fail $SESSION_NAME "openat"
 257         lttng_disable_kernel_syscall_fail $SESSION_NAME "close"
 258
 259         trace_testapp
 260
 261         # ensure "openat" syscall is there.
 262         validate_trace_exp "-e syscall_entry_openat: -e compat_syscall_entry_openat: -e syscall_exit_openat: -e compat_syscall_exit_openat:" $TRACE_PATH
 263
 264         # ensure "close" syscall is there.
 265         validate_trace_exp "-e syscall_entry_close: -e compat_syscall_entry_close:" $TRACE_PATH
 266         validate_trace_exp "-e syscall_exit_close: -e compat_syscall_exit_close:" $TRACE_PATH
 267
 268         # ensure "read" syscall is there.
 269         validate_trace_exp "-e syscall_entry_read: -e compat_syscall_entry_read:" $TRACE_PATH
 270         validate_trace_exp "-e syscall_exit_read: -e compat_syscall_exit_read:" $TRACE_PATH
 271
 272         destroy_lttng_session_ok $SESSION_NAME
 273
 274         rm -rf $TRACE_PATH
 275 }
 276
 277 function test_syscall_enable_all_disable_all()
 278 {
 279         local TRACE_PATH=$(mktemp --tmpdir -d -t "tmp.${FUNCNAME[0]}_trace_path.XXXXXX")
 280         SESSION_NAME="kernel_syscall_enable_all_disable_all"
 281
 282         diag "Syscall trace all events and disable all"
 283
 284         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 285
 286         # enable all system calls
 287         lttng_enable_kernel_syscall_ok $SESSION_NAME
 288         # disable all system calls
 289         lttng_disable_kernel_syscall_ok $SESSION_NAME
 290
 291         trace_testapp
 292
 293         # ensure nothing has been traced.
 294         validate_trace_empty $TRACE_PATH
 295
 296         destroy_lttng_session_ok $SESSION_NAME
 297
 298         rm -rf $TRACE_PATH
 299 }
 300
 301 function test_syscall_enable_all_disable_all_enable_all()
 302 {
 303         local TRACE_PATH=$(mktemp --tmpdir -d -t "tmp.${FUNCNAME[0]}_trace_path.XXXXXX")
 304         SESSION_NAME="kernel_syscall_enable_all_disable_all_enable_all"
 305
 306         diag "Syscall trace all events and enable/disable all"
 307
 308         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 309
 310         # enable all system calls
 311         lttng_enable_kernel_syscall_ok $SESSION_NAME
 312         # disable all system calls
 313         lttng_disable_kernel_syscall_ok $SESSION_NAME
 314         # enable all system calls
 315         lttng_enable_kernel_syscall_ok $SESSION_NAME
 316
 317         trace_testapp
 318
 319         # ensure at least open and close are there.
 320         validate_trace_exp "-e syscall_entry_openat: -e compat_syscall_entry_openat:" $TRACE_PATH
 321         validate_trace_exp "-e syscall_exit_openat: -e compat_syscall_exit_openat:" $TRACE_PATH
 322         validate_trace_exp "-e syscall_entry_close: -e compat_syscall_entry_close:" $TRACE_PATH
 323         validate_trace_exp "-e syscall_exit_close: -e compat_syscall_exit_close:" $TRACE_PATH
 324         # trace may contain other syscalls.
 325
 326         destroy_lttng_session_ok $SESSION_NAME
 327
 328         rm -rf $TRACE_PATH
 329 }
 330
 331 function test_syscall_enable_all_enable_one_disable_all()
 332 {
 333         local TRACE_PATH=$(mktemp --tmpdir -d -t "tmp.${FUNCNAME[0]}_trace_path.XXXXXX")
 334         SESSION_NAME="kernel_syscall_enable_all_enable_one_disable_all"
 335
 336         diag "Syscall trace all events, enable one and disable all"
 337
 338         create_lttng_session_ok $SESSION_NAME "$TRACE_PATH"
 339
 340         # enable all syscalls
 341         lttng_enable_kernel_syscall_ok $SESSION_NAME
 342
 343         # enable one specific syscall, "openat"
 344         lttng_enable_kernel_syscall_ok $SESSION_NAME openat
 345
 346         # disable all syscalls
 347         lttng_disable_kernel_syscall_ok $SESSION_NAME
 348
 349         trace_testapp
 350
 351         # The trace shouldn't contain any syscalls, disable-all should disable
 352         # even individually specified syscalls
 353         trace_match_only openat 0 "$TRACE_PATH"
 354
 355         destroy_lttng_session_ok $SESSION_NAME
 356
 357         rm -rf "$TRACE_PATH"
 358 }
 359
 360 function test_syscall_enable_one_enable_all_disable_one()
 361 {
 362         local TRACE_PATH=$(mktemp --tmpdir -d -t "tmp.${FUNCNAME[0]}_trace_path.XXXXXX")
 363         SESSION_NAME="kernel_syscall_enable_one_enable_all_disable_one"
 364
 365         diag "Syscall trace all events and enable/disable one"
 366
 367         create_lttng_session_ok $SESSION_NAME "$TRACE_PATH"
 368
 369         # enable one specific syscall, "openat"
 370         lttng_enable_kernel_syscall_ok $SESSION_NAME openat
 371
 372         # enable all syscalls
 373         lttng_enable_kernel_syscall_ok $SESSION_NAME
 374
 375         # disable one specific syscall, "openat"
 376         lttng_disable_kernel_syscall_ok $SESSION_NAME openat
 377
 378         trace_testapp
 379
 380         # The trace should contain all syscalls, including 'openat' because
 381         # enable-all overrides individually disabled syscalls.
 382         validate_trace openat "$TRACE_PATH"
 383
 384         destroy_lttng_session_ok $SESSION_NAME
 385
 386         rm -rf "$TRACE_PATH"
 387 }
 388
 389 function test_syscall_enable_one_enable_all_disable_all_disable_one()
 390 {
 391         local TRACE_PATH=$(mktemp --tmpdir -d -t "tmp.${FUNCNAME[0]}_trace_path.XXXXXX")
 392         SESSION_NAME="kernel_syscall_enable_one_enable_all_disable_all_disable_one"
 393
 394         diag "Syscall trace all events and enable/disable one"
 395
 396         create_lttng_session_ok $SESSION_NAME "$TRACE_PATH"
 397
 398         # enable one specific syscall, "openat"
 399         lttng_enable_kernel_syscall_ok $SESSION_NAME openat
 400
 401         # enable all syscalls
 402         lttng_enable_kernel_syscall_ok $SESSION_NAME
 403
 404         # disable all syscalls
 405         lttng_disable_kernel_syscall_ok $SESSION_NAME
 406
 407         # disable one specific syscall, "openat"
 408         lttng_disable_kernel_syscall_ok $SESSION_NAME openat
 409
 410         trace_testapp
 411
 412         # The trace shouldn't contain any syscalls, disable-all should disable
 413         # even individually specified syscalls
 414         trace_match_only openat 0 "$TRACE_PATH"
 415
 416         destroy_lttng_session_ok $SESSION_NAME
 417
 418         rm -rf "$TRACE_PATH"
 419 }
 420
 421 function test_syscall_enable_all_disable_all_twice()
 422 {
 423         local TRACE_PATH=$(mktemp --tmpdir -d -t "tmp.${FUNCNAME[0]}_trace_path.XXXXXX")
 424         SESSION_NAME="kernel_syscall_enable_all_disable_all_twice"
 425
 426         diag "Syscall trace all events and enable/disable all twice"
 427
 428         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 429
 430         # enable all system calls
 431         lttng_enable_kernel_syscall_ok $SESSION_NAME
 432         # disable all system calls
 433         lttng_disable_kernel_syscall_ok $SESSION_NAME
 434         # enable all system calls
 435         lttng_enable_kernel_syscall_ok $SESSION_NAME
 436         # disable all system calls
 437         lttng_disable_kernel_syscall_ok $SESSION_NAME
 438
 439         trace_testapp
 440
 441         # ensure nothing has been traced.
 442         validate_trace_empty $TRACE_PATH
 443
 444         destroy_lttng_session_ok $SESSION_NAME
 445
 446         rm -rf $TRACE_PATH
 447 }
 448
 449 function test_syscall_enable_one_disable_one()
 450 {
 451         local TRACE_PATH=$(mktemp --tmpdir -d -t "tmp.${FUNCNAME[0]}_trace_path.XXXXXX")
 452         SESSION_NAME="kernel_syscall_enable_one_disable_one"
 453
 454         diag "Syscall trace one event and disable one"
 455
 456         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 457
 458         # enable open system call
 459         lttng_enable_kernel_syscall_ok $SESSION_NAME "openat"
 460         # disable open system call
 461         lttng_disable_kernel_syscall_ok $SESSION_NAME "openat"
 462
 463         trace_testapp
 464
 465         # ensure nothing has been traced.
 466         validate_trace_empty $TRACE_PATH
 467
 468         destroy_lttng_session_ok $SESSION_NAME
 469
 470         rm -rf $TRACE_PATH
 471 }
 472
 473 function test_syscall_enable_two_disable_two()
 474 {
 475         local TRACE_PATH=$(mktemp --tmpdir -d -t "tmp.${FUNCNAME[0]}_trace_path.XXXXXX")
 476         SESSION_NAME="kernel_syscall_enable_two_disable_two"
 477
 478         diag "Syscall trace two events and disable two"
 479
 480         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 481
 482         # enable open and close system calls
 483         lttng_enable_kernel_syscall_ok $SESSION_NAME "openat"
 484         lttng_enable_kernel_syscall_ok $SESSION_NAME "close"
 485         # disable open and close system calls
 486         lttng_disable_kernel_syscall_ok $SESSION_NAME "openat"
 487         lttng_disable_kernel_syscall_ok $SESSION_NAME "close"
 488
 489         trace_testapp
 490
 491         # ensure nothing has been traced.
 492         validate_trace_empty $TRACE_PATH
 493
 494         destroy_lttng_session_ok $SESSION_NAME
 495
 496         rm -rf $TRACE_PATH
 497 }
 498
 499 function test_syscall_enable_two_disable_one()
 500 {
 501         local TRACE_PATH=$(mktemp --tmpdir -d -t "tmp.${FUNCNAME[0]}_trace_path.XXXXXX")
 502         SESSION_NAME="kernel_syscall_enable_two_disable_one"
 503
 504         diag "Syscall trace two events and disable one"
 505
 506         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 507
 508         # enable open and close system calls
 509         lttng_enable_kernel_syscall_ok $SESSION_NAME "openat"
 510         lttng_enable_kernel_syscall_ok $SESSION_NAME "close"
 511         # disable close system call
 512         lttng_disable_kernel_syscall_ok $SESSION_NAME "close"
 513
 514         trace_testapp
 515
 516         # ensure open is there.
 517         validate_trace_exp "-e syscall_entry_openat: -e compat_syscall_entry_openat:" $TRACE_PATH
 518         validate_trace_exp "-e syscall_exit_openat: -e compat_syscall_exit_openat:" $TRACE_PATH
 519
 520         # ensure trace only contains those.
 521         validate_trace_only_exp "-e syscall_entry_openat: -e compat_syscall_entry_openat: -e syscall_exit_openat: -e compat_syscall_exit_openat:" $TRACE_PATH
 522
 523         destroy_lttng_session_ok $SESSION_NAME
 524
 525         rm -rf $TRACE_PATH
 526 }
 527
 528 function test_syscall_disable_twice()
 529 {
 530         local TRACE_PATH=$(mktemp --tmpdir -d -t "tmp.${FUNCNAME[0]}_trace_path.XXXXXX")
 531         SESSION_NAME="kernel_syscall_disable_twice"
 532
 533         diag "Syscall trace one event and disable twice"
 534
 535         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 536
 537         lttng_enable_kernel_syscall_ok $SESSION_NAME "openat"
 538         # First disable will succeed
 539         lttng_disable_kernel_syscall_ok $SESSION_NAME "openat"
 540         # Second disable succeeds too, due to enabler semantic.
 541         lttng_disable_kernel_syscall_ok $SESSION_NAME "openat"
 542
 543         destroy_lttng_session_ok $SESSION_NAME
 544
 545         rm -rf $TRACE_PATH
 546 }
 547
 548 function test_syscall_disable_all_twice()
 549 {
 550         local TRACE_PATH=$(mktemp --tmpdir -d -t "tmp.${FUNCNAME[0]}_trace_path.XXXXXX")
 551         SESSION_NAME="kernel_syscall_disable_all_twice"
 552
 553         diag "Syscall trace all events and disable all twice"
 554
 555         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 556
 557         lttng_enable_kernel_syscall_ok $SESSION_NAME
 558         # First disable will succeed
 559         lttng_disable_kernel_syscall_ok $SESSION_NAME
 560         # Second disable succeeds too, due to enabler semantic.
 561         lttng_disable_kernel_syscall_ok $SESSION_NAME
 562
 563         destroy_lttng_session_ok $SESSION_NAME
 564
 565         rm -rf $TRACE_PATH
 566 }
 567
 568
 569 function test_syscall_enable_unknown()
 570 {
 571         local TRACE_PATH=$(mktemp --tmpdir -d -t "tmp.${FUNCNAME[0]}_trace_path.XXXXXX")
 572         SESSION_NAME="kernel_syscall_enable_unknown"
 573
 574         diag "Syscall enable an unknown event"
 575
 576         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 577
 578         # Enabling a syscall that does not exist succeeds, due to enabler
 579         # semantic.
 580         lttng_enable_kernel_syscall_ok $SESSION_NAME "thissyscallcannotexist"
 581
 582         destroy_lttng_session_ok $SESSION_NAME
 583
 584         rm -rf $TRACE_PATH
 585 }
 586
 587 function test_syscall_enable_all_enable_one()
 588 {
 589         local TRACE_PATH=$(mktemp --tmpdir -d -t "tmp.${FUNCNAME[0]}_trace_path.XXXXXX")
 590         SESSION_NAME="kernel_syscall_enable_all_enable_one"
 591
 592         diag "Syscall enable all and enable one"
 593
 594         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 595
 596         lttng_enable_kernel_syscall_ok $SESSION_NAME
 597         # Enabling an event already enabled succeeds, due to enabler semantic.
 598         lttng_enable_kernel_syscall_ok $SESSION_NAME "openat"
 599
 600         destroy_lttng_session_ok $SESSION_NAME
 601
 602         rm -rf $TRACE_PATH
 603 }
 604
 605 function test_syscall_disable_all_disable_one()
 606 {
 607         local TRACE_PATH=$(mktemp --tmpdir -d -t "tmp.${FUNCNAME[0]}_trace_path.XXXXXX")
 608         SESSION_NAME="kernel_syscall_enable_all_enable_one"
 609
 610         diag "Syscall disable all and disable one"
 611
 612         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 613
 614         lttng_enable_kernel_syscall_ok $SESSION_NAME
 615         lttng_disable_kernel_syscall_ok $SESSION_NAME
 616         # Disabling an event already disabled fails.
 617         lttng_disable_kernel_syscall_fail $SESSION_NAME "openat"
 618
 619         destroy_lttng_session_ok $SESSION_NAME
 620
 621         rm -rf $TRACE_PATH
 622 }
 623
 624 function test_syscall_enable_channel_disable_all()
 625 {
 626         local TRACE_PATH=$(mktemp --tmpdir -d -t "tmp.${FUNCNAME[0]}_trace_path.XXXXXX")
 627         SESSION_NAME="kernel_syscall_enable_channel_disable_all"
 628         CHANNEL_NAME="channel"
 629
 630         diag "Syscall enable channel and disable all"
 631
 632         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 633
 634         lttng_enable_kernel_channel_ok $SESSION_NAME $CHANNEL_NAME
 635         # sessiond semantic for "disable all" is to try to match all enalers
 636         # it knowns about. Disable all succeeds if it finds no match.
 637         lttng_disable_kernel_syscall_ok $SESSION_NAME "-a" $CHANNEL_NAME
 638
 639         destroy_lttng_session_ok $SESSION_NAME
 640
 641         rm -rf $TRACE_PATH
 642 }
 643
 644 function test_syscall_enable_channel_disable_one()
 645 {
 646         local TRACE_PATH=$(mktemp --tmpdir -d -t "tmp.${FUNCNAME[0]}_trace_path.XXXXXX")
 647         SESSION_NAME="kernel_syscall_enable_channel_disable_all"
 648         CHANNEL_NAME="channel"
 649
 650         diag "Syscall enable channel and disable one"
 651
 652         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 653
 654         lttng_enable_kernel_channel_ok $SESSION_NAME $CHANNEL_NAME
 655         lttng_disable_kernel_syscall_fail $SESSION_NAME "openat" $CHANNEL_NAME
 656
 657         destroy_lttng_session_ok $SESSION_NAME
 658
 659         rm -rf $TRACE_PATH
 660 }
 661
 662 # MUST set TESTDIR before calling those functions
 663 plan_tests $NUM_TESTS
 664
 665 print_test_banner "$TEST_DESC"
 666
 667 if [ "$(id -u)" == "0" ]; then
 668         isroot=1
 669 else
 670         isroot=0
 671 fi
 672
 673 skip $isroot "Root access is needed. Skipping all tests." $NUM_TESTS ||
 674 {
 675         start_lttng_sessiond
 676
 677         test_syscall_event_list
 678         test_syscall_simple_list
 679         test_syscall_simple_list_two
 680         test_syscall_single
 681         test_syscall_two
 682         test_syscall_all
 683         test_syscall_all_disable_one
 684         test_syscall_all_disable_two
 685         test_syscall_enable_all_disable_all
 686         test_syscall_enable_all_disable_all_enable_all
 687         test_syscall_enable_all_disable_all_twice
 688         test_syscall_enable_all_enable_one_disable_all
 689         test_syscall_enable_one_enable_all_disable_one
 690         test_syscall_enable_one_enable_all_disable_all_disable_one
 691         test_syscall_enable_one_disable_one
 692         test_syscall_enable_two_disable_two
 693         test_syscall_enable_two_disable_one
 694         test_syscall_disable_twice
 695         test_syscall_disable_all_twice
 696         test_syscall_enable_unknown
 697         test_syscall_enable_all_enable_one
 698         test_syscall_disable_all_disable_one
 699         test_syscall_enable_channel_disable_all
 700         test_syscall_enable_channel_disable_one
 701
 702         stop_lttng_sessiond
 703 }