| 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 | # This program is free software; you can redistribute it and/or modify it |
| 7 | # under the terms of the GNU General Public License, version 2 only, as |
| 8 | # published by the Free Software Foundation. |
| 9 | # |
| 10 | # This program is distributed in the hope that it will be useful, but WITHOUT |
| 11 | # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 12 | # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 13 | # more details. |
| 14 | # |
| 15 | # You should have received a copy of the GNU General Public License along with |
| 16 | # this program; if not, write to the Free Software Foundation, Inc., 51 |
| 17 | # Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 18 | |
| 19 | TEST_DESC="Kernel tracer - System calls" |
| 20 | |
| 21 | CURDIR=$(dirname $0)/ |
| 22 | TESTDIR=$CURDIR/../.. |
| 23 | NUM_TESTS=132 |
| 24 | |
| 25 | # test command issues at least open and close system calls |
| 26 | TESTCMD="cat /proc/cpuinfo > /dev/null" |
| 27 | |
| 28 | source $TESTDIR/utils/utils.sh |
| 29 | |
| 30 | function test_syscall_single() |
| 31 | { |
| 32 | TRACE_PATH=$(mktemp -d) |
| 33 | SESSION_NAME="kernel_syscall_single" |
| 34 | |
| 35 | create_lttng_session $SESSION_NAME $TRACE_PATH |
| 36 | |
| 37 | lttng_enable_kernel_syscall_ok $SESSION_NAME "open" |
| 38 | |
| 39 | start_lttng_tracing |
| 40 | eval ${TESTCMD} |
| 41 | stop_lttng_tracing |
| 42 | |
| 43 | # ensure each is there. |
| 44 | validate_trace_exp "-e syscall_entry_open: -e compat_syscall_entry_open:" $TRACE_PATH |
| 45 | validate_trace_exp "-e syscall_exit_open: -e compat_syscall_exit_open:" $TRACE_PATH |
| 46 | |
| 47 | # ensure trace only contains those. |
| 48 | validate_trace_only_exp "-e syscall_entry_open: -e compat_syscall_entry_open: -e syscall_exit_open: -e compat_syscall_exit_open:" $TRACE_PATH |
| 49 | |
| 50 | destroy_lttng_session $SESSION_NAME |
| 51 | |
| 52 | rm -rf $TRACE_PATH |
| 53 | } |
| 54 | |
| 55 | function test_syscall_two() |
| 56 | { |
| 57 | TRACE_PATH=$(mktemp -d) |
| 58 | SESSION_NAME="kernel_syscall_two" |
| 59 | |
| 60 | create_lttng_session $SESSION_NAME $TRACE_PATH |
| 61 | |
| 62 | lttng_enable_kernel_syscall_ok $SESSION_NAME "open" |
| 63 | lttng_enable_kernel_syscall_ok $SESSION_NAME "close" |
| 64 | |
| 65 | start_lttng_tracing |
| 66 | eval ${TESTCMD} |
| 67 | stop_lttng_tracing |
| 68 | |
| 69 | # ensure each is there. |
| 70 | validate_trace_exp "-e syscall_entry_open: -e compat_syscall_entry_open:" $TRACE_PATH |
| 71 | validate_trace_exp "-e syscall_exit_open: -e compat_syscall_exit_open:" $TRACE_PATH |
| 72 | validate_trace_exp "-e syscall_entry_close: -e compat_syscall_entry_close:" $TRACE_PATH |
| 73 | validate_trace_exp "-e syscall_exit_close: -e compat_syscall_exit_close:" $TRACE_PATH |
| 74 | |
| 75 | # ensure trace only contains those. |
| 76 | validate_trace_only_exp "-e syscall_entry_open: -e compat_syscall_entry_open: -e syscall_exit_open: -e compat_syscall_exit_open: -e syscall_entry_close: -e compat_syscall_entry_close: -e syscall_exit_close: -e compat_syscall_exit_close:" $TRACE_PATH |
| 77 | |
| 78 | destroy_lttng_session $SESSION_NAME |
| 79 | |
| 80 | rm -rf $TRACE_PATH |
| 81 | } |
| 82 | |
| 83 | function test_syscall_all() |
| 84 | { |
| 85 | TRACE_PATH=$(mktemp -d) |
| 86 | SESSION_NAME="kernel_syscall_all" |
| 87 | |
| 88 | create_lttng_session $SESSION_NAME $TRACE_PATH |
| 89 | |
| 90 | # enable all syscalls |
| 91 | lttng_enable_kernel_syscall_ok $SESSION_NAME |
| 92 | |
| 93 | start_lttng_tracing |
| 94 | eval ${TESTCMD} |
| 95 | stop_lttng_tracing |
| 96 | |
| 97 | # ensure at least open and close are there. |
| 98 | validate_trace_exp "-e syscall_entry_open: -e compat_syscall_entry_open:" $TRACE_PATH |
| 99 | validate_trace_exp "-e syscall_exit_open: -e compat_syscall_exit_open:" $TRACE_PATH |
| 100 | validate_trace_exp "-e syscall_entry_close: -e compat_syscall_entry_close:" $TRACE_PATH |
| 101 | validate_trace_exp "-e syscall_exit_close: -e compat_syscall_exit_close:" $TRACE_PATH |
| 102 | # trace may contain other syscalls. |
| 103 | |
| 104 | destroy_lttng_session $SESSION_NAME |
| 105 | |
| 106 | rm -rf $TRACE_PATH |
| 107 | } |
| 108 | |
| 109 | function test_syscall_all_disable_one() |
| 110 | { |
| 111 | TRACE_PATH=$(mktemp -d) |
| 112 | SESSION_NAME="kernel_syscall_all_disable_one" |
| 113 | |
| 114 | create_lttng_session $SESSION_NAME $TRACE_PATH |
| 115 | |
| 116 | # enable all syscalls |
| 117 | lttng_enable_kernel_syscall_ok $SESSION_NAME |
| 118 | # disable open system call |
| 119 | lttng_disable_kernel_syscall_ok $SESSION_NAME "open" |
| 120 | |
| 121 | start_lttng_tracing |
| 122 | eval ${TESTCMD} |
| 123 | stop_lttng_tracing |
| 124 | |
| 125 | # ensure "open" syscall is not there. |
| 126 | validate_trace_only_exp "-v -e syscall_entry_open: -e compat_syscall_entry_open: -e syscall_exit_open: -e compat_syscall_exit_open:" $TRACE_PATH |
| 127 | |
| 128 | # ensure "close" syscall is there. |
| 129 | validate_trace_exp "-e syscall_entry_close: -e compat_syscall_entry_close:" $TRACE_PATH |
| 130 | validate_trace_exp "-e syscall_exit_close: -e compat_syscall_exit_close:" $TRACE_PATH |
| 131 | |
| 132 | destroy_lttng_session $SESSION_NAME |
| 133 | |
| 134 | rm -rf $TRACE_PATH |
| 135 | } |
| 136 | |
| 137 | function test_syscall_all_disable_two() |
| 138 | { |
| 139 | TRACE_PATH=$(mktemp -d) |
| 140 | SESSION_NAME="kernel_syscall_all_disable_two" |
| 141 | |
| 142 | create_lttng_session $SESSION_NAME $TRACE_PATH |
| 143 | |
| 144 | # enable all syscalls |
| 145 | lttng_enable_kernel_syscall_ok $SESSION_NAME |
| 146 | # disable open system call |
| 147 | lttng_disable_kernel_syscall_ok $SESSION_NAME "open" |
| 148 | lttng_disable_kernel_syscall_ok $SESSION_NAME "close" |
| 149 | |
| 150 | start_lttng_tracing |
| 151 | # generates open, close, execve (at least) |
| 152 | eval ${TESTCMD} |
| 153 | stop_lttng_tracing |
| 154 | |
| 155 | # ensure "open" and "close" syscalls are not there. |
| 156 | validate_trace_only_exp "-v -e syscall_entry_open: -e compat_syscall_entry_open: -e syscall_exit_open: -e compat_syscall_exit_open: -e syscall_entry_close: -e compat_syscall_entry_close: -e syscall_exit_close: -e compat_syscall_exit_close:" $TRACE_PATH |
| 157 | |
| 158 | # ensure "execve" syscall is there. |
| 159 | validate_trace_exp "-e syscall_entry_execve: -e compat_syscall_entry_execve:" $TRACE_PATH |
| 160 | validate_trace_exp "-e syscall_exit_execve: -e compat_syscall_exit_execve:" $TRACE_PATH |
| 161 | |
| 162 | destroy_lttng_session $SESSION_NAME |
| 163 | |
| 164 | rm -rf $TRACE_PATH |
| 165 | } |
| 166 | |
| 167 | function test_syscall_enable_all_disable_all() |
| 168 | { |
| 169 | TRACE_PATH=$(mktemp -d) |
| 170 | SESSION_NAME="kernel_syscall_enable_all_disable_all" |
| 171 | |
| 172 | create_lttng_session $SESSION_NAME $TRACE_PATH |
| 173 | |
| 174 | # enable all system calls |
| 175 | lttng_enable_kernel_syscall_ok $SESSION_NAME |
| 176 | # disable all system calls |
| 177 | lttng_disable_kernel_syscall_ok $SESSION_NAME |
| 178 | |
| 179 | start_lttng_tracing |
| 180 | # generates open, close, execve (at least) |
| 181 | eval ${TESTCMD} |
| 182 | stop_lttng_tracing |
| 183 | |
| 184 | # ensure nothing has been traced. |
| 185 | validate_trace_empty $TRACE_PATH |
| 186 | |
| 187 | destroy_lttng_session $SESSION_NAME |
| 188 | |
| 189 | rm -rf $TRACE_PATH |
| 190 | } |
| 191 | |
| 192 | function test_syscall_enable_all_disable_all_enable_all() |
| 193 | { |
| 194 | TRACE_PATH=$(mktemp -d) |
| 195 | SESSION_NAME="kernel_syscall_enable_all_disable_all_enable_all" |
| 196 | |
| 197 | create_lttng_session $SESSION_NAME $TRACE_PATH |
| 198 | |
| 199 | # enable all system calls |
| 200 | lttng_enable_kernel_syscall_ok $SESSION_NAME |
| 201 | # disable all system calls |
| 202 | lttng_disable_kernel_syscall_ok $SESSION_NAME |
| 203 | # enable all system calls |
| 204 | lttng_enable_kernel_syscall_ok $SESSION_NAME |
| 205 | |
| 206 | start_lttng_tracing |
| 207 | # generates open, close, execve (at least) |
| 208 | eval ${TESTCMD} |
| 209 | stop_lttng_tracing |
| 210 | |
| 211 | # ensure at least open and close are there. |
| 212 | validate_trace_exp "-e syscall_entry_open: -e compat_syscall_entry_open:" $TRACE_PATH |
| 213 | validate_trace_exp "-e syscall_exit_open: -e compat_syscall_exit_open:" $TRACE_PATH |
| 214 | validate_trace_exp "-e syscall_entry_close: -e compat_syscall_entry_close:" $TRACE_PATH |
| 215 | validate_trace_exp "-e syscall_exit_close: -e compat_syscall_exit_close:" $TRACE_PATH |
| 216 | # trace may contain other syscalls. |
| 217 | |
| 218 | destroy_lttng_session $SESSION_NAME |
| 219 | |
| 220 | rm -rf $TRACE_PATH |
| 221 | } |
| 222 | |
| 223 | function test_syscall_enable_all_disable_all_twice() |
| 224 | { |
| 225 | TRACE_PATH=$(mktemp -d) |
| 226 | SESSION_NAME="kernel_syscall_enable_all_disable_all_twice" |
| 227 | |
| 228 | create_lttng_session $SESSION_NAME $TRACE_PATH |
| 229 | |
| 230 | # enable all system calls |
| 231 | lttng_enable_kernel_syscall_ok $SESSION_NAME |
| 232 | # disable all system calls |
| 233 | lttng_disable_kernel_syscall_ok $SESSION_NAME |
| 234 | # enable all system calls |
| 235 | lttng_enable_kernel_syscall_ok $SESSION_NAME |
| 236 | # disable all system calls |
| 237 | lttng_disable_kernel_syscall_ok $SESSION_NAME |
| 238 | |
| 239 | start_lttng_tracing |
| 240 | # generates open, close, execve (at least) |
| 241 | eval ${TESTCMD} |
| 242 | stop_lttng_tracing |
| 243 | |
| 244 | # ensure nothing has been traced. |
| 245 | validate_trace_empty $TRACE_PATH |
| 246 | |
| 247 | destroy_lttng_session $SESSION_NAME |
| 248 | |
| 249 | rm -rf $TRACE_PATH |
| 250 | } |
| 251 | |
| 252 | function test_syscall_enable_one_disable_one() |
| 253 | { |
| 254 | TRACE_PATH=$(mktemp -d) |
| 255 | SESSION_NAME="kernel_syscall_enable_one_disable_one" |
| 256 | |
| 257 | create_lttng_session $SESSION_NAME $TRACE_PATH |
| 258 | |
| 259 | # enable open system call |
| 260 | lttng_enable_kernel_syscall_ok $SESSION_NAME "open" |
| 261 | # disable open system call |
| 262 | lttng_disable_kernel_syscall_ok $SESSION_NAME "open" |
| 263 | |
| 264 | start_lttng_tracing |
| 265 | # generates open, close, execve (at least) |
| 266 | eval ${TESTCMD} |
| 267 | stop_lttng_tracing |
| 268 | |
| 269 | # ensure nothing has been traced. |
| 270 | validate_trace_empty $TRACE_PATH |
| 271 | |
| 272 | destroy_lttng_session $SESSION_NAME |
| 273 | |
| 274 | rm -rf $TRACE_PATH |
| 275 | } |
| 276 | |
| 277 | function test_syscall_enable_two_disable_two() |
| 278 | { |
| 279 | TRACE_PATH=$(mktemp -d) |
| 280 | SESSION_NAME="kernel_syscall_enable_two_disable_two" |
| 281 | |
| 282 | create_lttng_session $SESSION_NAME $TRACE_PATH |
| 283 | |
| 284 | # enable open and close system calls |
| 285 | lttng_enable_kernel_syscall_ok $SESSION_NAME "open" |
| 286 | lttng_enable_kernel_syscall_ok $SESSION_NAME "close" |
| 287 | # disable open and close system calls |
| 288 | lttng_disable_kernel_syscall_ok $SESSION_NAME "open" |
| 289 | lttng_disable_kernel_syscall_ok $SESSION_NAME "close" |
| 290 | |
| 291 | start_lttng_tracing |
| 292 | # generates open, close, execve (at least) |
| 293 | eval ${TESTCMD} |
| 294 | stop_lttng_tracing |
| 295 | |
| 296 | # ensure nothing has been traced. |
| 297 | validate_trace_empty $TRACE_PATH |
| 298 | |
| 299 | destroy_lttng_session $SESSION_NAME |
| 300 | |
| 301 | rm -rf $TRACE_PATH |
| 302 | } |
| 303 | |
| 304 | function test_syscall_enable_two_disable_one() |
| 305 | { |
| 306 | TRACE_PATH=$(mktemp -d) |
| 307 | SESSION_NAME="kernel_syscall_enable_two_disable_one" |
| 308 | |
| 309 | create_lttng_session $SESSION_NAME $TRACE_PATH |
| 310 | |
| 311 | # enable open and close system calls |
| 312 | lttng_enable_kernel_syscall_ok $SESSION_NAME "open" |
| 313 | lttng_enable_kernel_syscall_ok $SESSION_NAME "close" |
| 314 | # disable close system call |
| 315 | lttng_disable_kernel_syscall_ok $SESSION_NAME "close" |
| 316 | |
| 317 | start_lttng_tracing |
| 318 | # generates open, close, execve (at least) |
| 319 | eval ${TESTCMD} |
| 320 | stop_lttng_tracing |
| 321 | |
| 322 | # ensure open is there. |
| 323 | validate_trace_exp "-e syscall_entry_open: -e compat_syscall_entry_open:" $TRACE_PATH |
| 324 | validate_trace_exp "-e syscall_exit_open: -e compat_syscall_exit_open:" $TRACE_PATH |
| 325 | |
| 326 | # ensure trace only contains those. |
| 327 | validate_trace_only_exp "-e syscall_entry_open: -e compat_syscall_entry_open: -e syscall_exit_open: -e compat_syscall_exit_open:" $TRACE_PATH |
| 328 | |
| 329 | destroy_lttng_session $SESSION_NAME |
| 330 | |
| 331 | rm -rf $TRACE_PATH |
| 332 | } |
| 333 | |
| 334 | function test_syscall_disable_twice() |
| 335 | { |
| 336 | TRACE_PATH=$(mktemp -d) |
| 337 | SESSION_NAME="kernel_syscall_disable_twice" |
| 338 | |
| 339 | create_lttng_session $SESSION_NAME $TRACE_PATH |
| 340 | |
| 341 | lttng_enable_kernel_syscall_ok $SESSION_NAME "open" |
| 342 | # First disable will succeed |
| 343 | lttng_disable_kernel_syscall_ok $SESSION_NAME "open" |
| 344 | # Second disable will fail |
| 345 | lttng_disable_kernel_syscall_fail $SESSION_NAME "open" |
| 346 | |
| 347 | destroy_lttng_session $SESSION_NAME |
| 348 | |
| 349 | rm -rf $TRACE_PATH |
| 350 | } |
| 351 | |
| 352 | function test_syscall_disable_all_twice() |
| 353 | { |
| 354 | TRACE_PATH=$(mktemp -d) |
| 355 | SESSION_NAME="kernel_syscall_disable_all_twice" |
| 356 | |
| 357 | create_lttng_session $SESSION_NAME $TRACE_PATH |
| 358 | |
| 359 | lttng_enable_kernel_syscall_ok $SESSION_NAME |
| 360 | # First disable will succeed |
| 361 | lttng_disable_kernel_syscall_ok $SESSION_NAME |
| 362 | # Second disable will fail |
| 363 | lttng_disable_kernel_syscall_fail $SESSION_NAME |
| 364 | |
| 365 | destroy_lttng_session $SESSION_NAME |
| 366 | |
| 367 | rm -rf $TRACE_PATH |
| 368 | } |
| 369 | |
| 370 | |
| 371 | function test_syscall_enable_unknown() |
| 372 | { |
| 373 | TRACE_PATH=$(mktemp -d) |
| 374 | SESSION_NAME="kernel_syscall_enable_unknown" |
| 375 | |
| 376 | create_lttng_session $SESSION_NAME $TRACE_PATH |
| 377 | |
| 378 | lttng_enable_kernel_syscall_fail $SESSION_NAME "thissyscallcannotexist" |
| 379 | |
| 380 | destroy_lttng_session $SESSION_NAME |
| 381 | |
| 382 | rm -rf $TRACE_PATH |
| 383 | } |
| 384 | |
| 385 | function test_syscall_enable_all_enable_one() |
| 386 | { |
| 387 | TRACE_PATH=$(mktemp -d) |
| 388 | SESSION_NAME="kernel_syscall_enable_all_enable_one" |
| 389 | |
| 390 | create_lttng_session $SESSION_NAME $TRACE_PATH |
| 391 | |
| 392 | lttng_enable_kernel_syscall_ok $SESSION_NAME |
| 393 | # Enabling an event already enabled fails. |
| 394 | lttng_enable_kernel_syscall_fail $SESSION_NAME "open" |
| 395 | |
| 396 | destroy_lttng_session $SESSION_NAME |
| 397 | |
| 398 | rm -rf $TRACE_PATH |
| 399 | } |
| 400 | |
| 401 | function test_syscall_disable_all_disable_one() |
| 402 | { |
| 403 | TRACE_PATH=$(mktemp -d) |
| 404 | SESSION_NAME="kernel_syscall_enable_all_enable_one" |
| 405 | |
| 406 | create_lttng_session $SESSION_NAME $TRACE_PATH |
| 407 | |
| 408 | lttng_enable_kernel_syscall_ok $SESSION_NAME |
| 409 | lttng_disable_kernel_syscall_ok $SESSION_NAME |
| 410 | # Disabling an event already disabled fails. |
| 411 | lttng_disable_kernel_syscall_fail $SESSION_NAME "open" |
| 412 | |
| 413 | destroy_lttng_session $SESSION_NAME |
| 414 | |
| 415 | rm -rf $TRACE_PATH |
| 416 | } |
| 417 | |
| 418 | function test_syscall_enable_channel_disable_all() |
| 419 | { |
| 420 | TRACE_PATH=$(mktemp -d) |
| 421 | SESSION_NAME="kernel_syscall_enable_channel_disable_all" |
| 422 | CHANNEL_NAME="channel" |
| 423 | |
| 424 | create_lttng_session $SESSION_NAME $TRACE_PATH |
| 425 | |
| 426 | lttng_enable_kernel_channel_ok $SESSION_NAME $CHANNEL_NAME |
| 427 | lttng_disable_kernel_syscall_fail $SESSION_NAME "-a" $CHANNEL_NAME |
| 428 | |
| 429 | destroy_lttng_session $SESSION_NAME |
| 430 | |
| 431 | rm -rf $TRACE_PATH |
| 432 | } |
| 433 | |
| 434 | function test_syscall_enable_channel_disable_one() |
| 435 | { |
| 436 | TRACE_PATH=$(mktemp -d) |
| 437 | SESSION_NAME="kernel_syscall_enable_channel_disable_all" |
| 438 | CHANNEL_NAME="channel" |
| 439 | |
| 440 | create_lttng_session $SESSION_NAME $TRACE_PATH |
| 441 | |
| 442 | lttng_enable_kernel_channel_ok $SESSION_NAME $CHANNEL_NAME |
| 443 | lttng_disable_kernel_syscall_fail $SESSION_NAME "open" $CHANNEL_NAME |
| 444 | |
| 445 | destroy_lttng_session $SESSION_NAME |
| 446 | |
| 447 | rm -rf $TRACE_PATH |
| 448 | } |
| 449 | |
| 450 | # MUST set TESTDIR before calling those functions |
| 451 | plan_tests $NUM_TESTS |
| 452 | |
| 453 | print_test_banner "$TEST_DESC" |
| 454 | |
| 455 | if [ "$(id -u)" == "0" ]; then |
| 456 | isroot=1 |
| 457 | else |
| 458 | isroot=0 |
| 459 | fi |
| 460 | |
| 461 | skip $isroot "Root access is needed. Skipping all tests." $NUM_TESTS || |
| 462 | { |
| 463 | start_lttng_sessiond |
| 464 | |
| 465 | test_syscall_single |
| 466 | test_syscall_two |
| 467 | test_syscall_all |
| 468 | test_syscall_all_disable_one |
| 469 | test_syscall_all_disable_two |
| 470 | test_syscall_enable_all_disable_all |
| 471 | test_syscall_enable_all_disable_all_enable_all |
| 472 | test_syscall_enable_all_disable_all_twice |
| 473 | test_syscall_enable_one_disable_one |
| 474 | test_syscall_enable_two_disable_two |
| 475 | test_syscall_enable_two_disable_one |
| 476 | test_syscall_disable_twice |
| 477 | test_syscall_disable_all_twice |
| 478 | test_syscall_enable_unknown |
| 479 | test_syscall_enable_all_enable_one |
| 480 | test_syscall_disable_all_disable_one |
| 481 | test_syscall_enable_channel_disable_all |
| 482 | test_syscall_enable_channel_disable_one |
| 483 | |
| 484 | stop_lttng_sessiond |
| 485 | } |