| 1 | /* |
| 2 | * Copyright (C) 2021 Simon Marchi <simon.marchi@efficios.com> |
| 3 | * |
| 4 | * SPDX-License-Identifier: GPL-2.0-only |
| 5 | * |
| 6 | */ |
| 7 | |
| 8 | #include <stdio.h> |
| 9 | |
| 10 | #include "../command.h" |
| 11 | |
| 12 | #include "common/argpar/argpar.h" |
| 13 | #include "common/argpar-utils/argpar-utils.h" |
| 14 | #include "common/dynamic-array.h" |
| 15 | #include "common/mi-lttng.h" |
| 16 | /* For lttng_condition_type_str(). */ |
| 17 | #include "lttng/condition/condition-internal.h" |
| 18 | #include "lttng/condition/event-rule-matches.h" |
| 19 | #include "lttng/condition/event-rule-matches-internal.h" |
| 20 | /* For lttng_domain_type_str(). */ |
| 21 | #include "lttng/domain-internal.h" |
| 22 | /* For lttng_event_rule_kernel_syscall_emission_site_str() */ |
| 23 | #include "lttng/event-rule/kernel-syscall-internal.h" |
| 24 | #include "../loglevel.h" |
| 25 | #include <lttng/lttng.h> |
| 26 | |
| 27 | #ifdef LTTNG_EMBED_HELP |
| 28 | static const char help_msg[] = |
| 29 | #include <lttng-list-triggers.1.h> |
| 30 | ; |
| 31 | #endif |
| 32 | |
| 33 | #define INDENTATION_LEVEL_STR " " |
| 34 | |
| 35 | typedef enum lttng_event_rule_status (*event_rule_logging_get_name_pattern)( |
| 36 | const struct lttng_event_rule *rule, const char **pattern); |
| 37 | typedef enum lttng_event_rule_status (*event_rule_logging_get_filter)( |
| 38 | const struct lttng_event_rule *rule, const char **expression); |
| 39 | typedef enum lttng_event_rule_status (*event_rule_logging_get_log_level_rule)( |
| 40 | const struct lttng_event_rule *rule, |
| 41 | const struct lttng_log_level_rule **log_level_rule); |
| 42 | |
| 43 | enum { |
| 44 | OPT_HELP, |
| 45 | OPT_LIST_OPTIONS, |
| 46 | }; |
| 47 | |
| 48 | static const |
| 49 | struct argpar_opt_descr list_trigger_options[] = { |
| 50 | { OPT_HELP, 'h', "help", false }, |
| 51 | { OPT_LIST_OPTIONS, '\0', "list-options", false }, |
| 52 | ARGPAR_OPT_DESCR_SENTINEL, |
| 53 | }; |
| 54 | |
| 55 | static void print_condition_session_consumed_size( |
| 56 | const struct lttng_condition *condition) |
| 57 | { |
| 58 | enum lttng_condition_status condition_status; |
| 59 | const char *session_name; |
| 60 | uint64_t threshold; |
| 61 | |
| 62 | condition_status = |
| 63 | lttng_condition_session_consumed_size_get_session_name( |
| 64 | condition, &session_name); |
| 65 | LTTNG_ASSERT(condition_status == LTTNG_CONDITION_STATUS_OK); |
| 66 | |
| 67 | lttng_condition_session_consumed_size_get_threshold( |
| 68 | condition, &threshold); |
| 69 | LTTNG_ASSERT(condition_status == LTTNG_CONDITION_STATUS_OK); |
| 70 | |
| 71 | MSG(" session name: %s", session_name); |
| 72 | MSG(" threshold: %" PRIu64 " bytes", threshold); |
| 73 | } |
| 74 | |
| 75 | static void print_condition_buffer_usage( |
| 76 | const struct lttng_condition *condition) |
| 77 | { |
| 78 | enum lttng_condition_status condition_status; |
| 79 | const char *session_name, *channel_name; |
| 80 | enum lttng_domain_type domain_type; |
| 81 | uint64_t threshold; |
| 82 | |
| 83 | condition_status = lttng_condition_buffer_usage_get_session_name( |
| 84 | condition, &session_name); |
| 85 | LTTNG_ASSERT(condition_status == LTTNG_CONDITION_STATUS_OK); |
| 86 | |
| 87 | condition_status = lttng_condition_buffer_usage_get_channel_name( |
| 88 | condition, &channel_name); |
| 89 | LTTNG_ASSERT(condition_status == LTTNG_CONDITION_STATUS_OK); |
| 90 | |
| 91 | condition_status = lttng_condition_buffer_usage_get_domain_type( |
| 92 | condition, &domain_type); |
| 93 | LTTNG_ASSERT(condition_status == LTTNG_CONDITION_STATUS_OK); |
| 94 | |
| 95 | MSG(" session name: %s", session_name); |
| 96 | MSG(" channel name: %s", channel_name); |
| 97 | MSG(" domain: %s", lttng_domain_type_str(domain_type)); |
| 98 | |
| 99 | condition_status = lttng_condition_buffer_usage_get_threshold( |
| 100 | condition, &threshold); |
| 101 | if (condition_status == LTTNG_CONDITION_STATUS_OK) { |
| 102 | MSG(" threshold (bytes): %" PRIu64, threshold); |
| 103 | } else { |
| 104 | double threshold_ratio; |
| 105 | |
| 106 | LTTNG_ASSERT(condition_status == LTTNG_CONDITION_STATUS_UNSET); |
| 107 | |
| 108 | condition_status = |
| 109 | lttng_condition_buffer_usage_get_threshold_ratio( |
| 110 | condition, &threshold_ratio); |
| 111 | LTTNG_ASSERT(condition_status == LTTNG_CONDITION_STATUS_OK); |
| 112 | |
| 113 | MSG(" threshold (ratio): %.2f", threshold_ratio); |
| 114 | } |
| 115 | } |
| 116 | |
| 117 | static void print_condition_session_rotation( |
| 118 | const struct lttng_condition *condition) |
| 119 | { |
| 120 | enum lttng_condition_status condition_status; |
| 121 | const char *session_name; |
| 122 | |
| 123 | condition_status = lttng_condition_session_rotation_get_session_name( |
| 124 | condition, &session_name); |
| 125 | LTTNG_ASSERT(condition_status == LTTNG_CONDITION_STATUS_OK); |
| 126 | |
| 127 | MSG(" session name: %s", session_name); |
| 128 | } |
| 129 | |
| 130 | /* |
| 131 | * Returns the human-readable log level name associated with a numerical value |
| 132 | * if there is one. The Log4j and JUL event rule have discontinuous log level |
| 133 | * values (a value can fall between two labels). In those cases, NULL is |
| 134 | * returned. |
| 135 | */ |
| 136 | static const char *get_pretty_loglevel_name( |
| 137 | enum lttng_event_rule_type event_rule_type, int loglevel) |
| 138 | { |
| 139 | const char *name = NULL; |
| 140 | |
| 141 | switch (event_rule_type) { |
| 142 | case LTTNG_EVENT_RULE_TYPE_USER_TRACEPOINT: |
| 143 | name = loglevel_value_to_name(loglevel); |
| 144 | break; |
| 145 | case LTTNG_EVENT_RULE_TYPE_LOG4J_LOGGING: |
| 146 | name = loglevel_log4j_value_to_name(loglevel); |
| 147 | break; |
| 148 | case LTTNG_EVENT_RULE_TYPE_JUL_LOGGING: |
| 149 | name = loglevel_jul_value_to_name(loglevel); |
| 150 | break; |
| 151 | case LTTNG_EVENT_RULE_TYPE_PYTHON_LOGGING: |
| 152 | name = loglevel_python_value_to_name(loglevel); |
| 153 | break; |
| 154 | default: |
| 155 | break; |
| 156 | } |
| 157 | |
| 158 | return name; |
| 159 | } |
| 160 | |
| 161 | static |
| 162 | void print_event_rule_user_tracepoint(const struct lttng_event_rule *event_rule) |
| 163 | { |
| 164 | enum lttng_event_rule_status event_rule_status; |
| 165 | const char *pattern; |
| 166 | const char *filter; |
| 167 | int log_level; |
| 168 | const struct lttng_log_level_rule *log_level_rule = NULL; |
| 169 | unsigned int exclusions_count; |
| 170 | int i; |
| 171 | |
| 172 | event_rule_status = lttng_event_rule_user_tracepoint_get_name_pattern( |
| 173 | event_rule, &pattern); |
| 174 | LTTNG_ASSERT(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK); |
| 175 | |
| 176 | _MSG(" rule: %s (type: user tracepoint", pattern); |
| 177 | |
| 178 | event_rule_status = lttng_event_rule_user_tracepoint_get_filter( |
| 179 | event_rule, &filter); |
| 180 | if (event_rule_status == LTTNG_EVENT_RULE_STATUS_OK) { |
| 181 | _MSG(", filter: %s", filter); |
| 182 | } else { |
| 183 | LTTNG_ASSERT(event_rule_status == LTTNG_EVENT_RULE_STATUS_UNSET); |
| 184 | } |
| 185 | |
| 186 | event_rule_status = lttng_event_rule_user_tracepoint_get_log_level_rule( |
| 187 | event_rule, &log_level_rule); |
| 188 | if (event_rule_status == LTTNG_EVENT_RULE_STATUS_OK) { |
| 189 | enum lttng_log_level_rule_status llr_status; |
| 190 | const char *log_level_op; |
| 191 | const char *pretty_loglevel_name; |
| 192 | |
| 193 | switch (lttng_log_level_rule_get_type(log_level_rule)) { |
| 194 | case LTTNG_LOG_LEVEL_RULE_TYPE_EXACTLY: |
| 195 | log_level_op = "is"; |
| 196 | llr_status = lttng_log_level_rule_exactly_get_level( |
| 197 | log_level_rule, &log_level); |
| 198 | break; |
| 199 | case LTTNG_LOG_LEVEL_RULE_TYPE_AT_LEAST_AS_SEVERE_AS: |
| 200 | log_level_op = "at least"; |
| 201 | llr_status = lttng_log_level_rule_at_least_as_severe_as_get_level( |
| 202 | log_level_rule, &log_level); |
| 203 | break; |
| 204 | default: |
| 205 | abort(); |
| 206 | } |
| 207 | |
| 208 | LTTNG_ASSERT(llr_status == LTTNG_LOG_LEVEL_RULE_STATUS_OK); |
| 209 | |
| 210 | pretty_loglevel_name = get_pretty_loglevel_name( |
| 211 | LTTNG_EVENT_RULE_TYPE_USER_TRACEPOINT, log_level); |
| 212 | if (pretty_loglevel_name) { |
| 213 | _MSG(", log level %s %s", log_level_op, |
| 214 | pretty_loglevel_name); |
| 215 | } else { |
| 216 | _MSG(", log level %s %d", log_level_op, log_level); |
| 217 | } |
| 218 | } else { |
| 219 | LTTNG_ASSERT(event_rule_status == LTTNG_EVENT_RULE_STATUS_UNSET); |
| 220 | } |
| 221 | |
| 222 | event_rule_status = lttng_event_rule_user_tracepoint_get_name_pattern_exclusion_count( |
| 223 | event_rule, &exclusions_count); |
| 224 | LTTNG_ASSERT(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK); |
| 225 | if (exclusions_count > 0) { |
| 226 | _MSG(", exclusions: "); |
| 227 | for (i = 0; i < exclusions_count; i++) { |
| 228 | const char *exclusion; |
| 229 | |
| 230 | event_rule_status = lttng_event_rule_user_tracepoint_get_name_pattern_exclusion_at_index( |
| 231 | event_rule, i, &exclusion); |
| 232 | LTTNG_ASSERT(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK); |
| 233 | |
| 234 | _MSG("%s%s", i > 0 ? "," : "", exclusion); |
| 235 | } |
| 236 | } |
| 237 | |
| 238 | MSG(")"); |
| 239 | } |
| 240 | |
| 241 | static |
| 242 | void print_event_rule_kernel_tracepoint(const struct lttng_event_rule *event_rule) |
| 243 | { |
| 244 | enum lttng_event_rule_status event_rule_status; |
| 245 | const char *pattern; |
| 246 | const char *filter; |
| 247 | |
| 248 | event_rule_status = lttng_event_rule_kernel_tracepoint_get_name_pattern( |
| 249 | event_rule, &pattern); |
| 250 | LTTNG_ASSERT(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK); |
| 251 | |
| 252 | _MSG(" rule: %s (type: kernel tracepoint", pattern); |
| 253 | |
| 254 | event_rule_status = lttng_event_rule_kernel_tracepoint_get_filter( |
| 255 | event_rule, &filter); |
| 256 | if (event_rule_status == LTTNG_EVENT_RULE_STATUS_OK) { |
| 257 | _MSG(", filter: %s", filter); |
| 258 | } else { |
| 259 | LTTNG_ASSERT(event_rule_status == LTTNG_EVENT_RULE_STATUS_UNSET); |
| 260 | } |
| 261 | |
| 262 | MSG(")"); |
| 263 | } |
| 264 | |
| 265 | static |
| 266 | void print_event_rule_logging(const struct lttng_event_rule *event_rule) |
| 267 | { |
| 268 | enum lttng_event_rule_status event_rule_status; |
| 269 | enum lttng_event_rule_type event_rule_type = lttng_event_rule_get_type(event_rule); |
| 270 | const char *pattern; |
| 271 | const char *filter; |
| 272 | int log_level; |
| 273 | const struct lttng_log_level_rule *log_level_rule = NULL; |
| 274 | const char *type_str = NULL; |
| 275 | |
| 276 | event_rule_logging_get_name_pattern logging_get_name_pattern; |
| 277 | event_rule_logging_get_filter logging_get_filter; |
| 278 | event_rule_logging_get_log_level_rule logging_get_log_level_rule; |
| 279 | |
| 280 | switch (event_rule_type) { |
| 281 | case LTTNG_EVENT_RULE_TYPE_JUL_LOGGING: |
| 282 | logging_get_name_pattern = |
| 283 | lttng_event_rule_jul_logging_get_name_pattern; |
| 284 | logging_get_filter = lttng_event_rule_jul_logging_get_filter; |
| 285 | logging_get_log_level_rule = |
| 286 | lttng_event_rule_jul_logging_get_log_level_rule; |
| 287 | type_str = "jul"; |
| 288 | break; |
| 289 | case LTTNG_EVENT_RULE_TYPE_LOG4J_LOGGING: |
| 290 | logging_get_name_pattern = |
| 291 | lttng_event_rule_log4j_logging_get_name_pattern; |
| 292 | logging_get_filter = lttng_event_rule_log4j_logging_get_filter; |
| 293 | logging_get_log_level_rule = |
| 294 | lttng_event_rule_log4j_logging_get_log_level_rule; |
| 295 | type_str = "log4j"; |
| 296 | break; |
| 297 | case LTTNG_EVENT_RULE_TYPE_PYTHON_LOGGING: |
| 298 | logging_get_name_pattern = |
| 299 | lttng_event_rule_python_logging_get_name_pattern; |
| 300 | logging_get_filter = lttng_event_rule_python_logging_get_filter; |
| 301 | logging_get_log_level_rule = |
| 302 | lttng_event_rule_python_logging_get_log_level_rule; |
| 303 | type_str = "python"; |
| 304 | break; |
| 305 | default: |
| 306 | abort(); |
| 307 | break; |
| 308 | } |
| 309 | |
| 310 | event_rule_status = logging_get_name_pattern( |
| 311 | event_rule, &pattern); |
| 312 | LTTNG_ASSERT(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK); |
| 313 | |
| 314 | _MSG(" rule: %s (type: %s:logging", pattern, type_str); |
| 315 | |
| 316 | event_rule_status = logging_get_filter( |
| 317 | event_rule, &filter); |
| 318 | if (event_rule_status == LTTNG_EVENT_RULE_STATUS_OK) { |
| 319 | _MSG(", filter: %s", filter); |
| 320 | } else { |
| 321 | LTTNG_ASSERT(event_rule_status == LTTNG_EVENT_RULE_STATUS_UNSET); |
| 322 | } |
| 323 | |
| 324 | event_rule_status = logging_get_log_level_rule( |
| 325 | event_rule, &log_level_rule); |
| 326 | if (event_rule_status == LTTNG_EVENT_RULE_STATUS_OK) { |
| 327 | enum lttng_log_level_rule_status llr_status; |
| 328 | const char *log_level_op; |
| 329 | const char *pretty_loglevel_name; |
| 330 | |
| 331 | switch (lttng_log_level_rule_get_type(log_level_rule)) { |
| 332 | case LTTNG_LOG_LEVEL_RULE_TYPE_EXACTLY: |
| 333 | log_level_op = "is"; |
| 334 | llr_status = lttng_log_level_rule_exactly_get_level( |
| 335 | log_level_rule, &log_level); |
| 336 | break; |
| 337 | case LTTNG_LOG_LEVEL_RULE_TYPE_AT_LEAST_AS_SEVERE_AS: |
| 338 | log_level_op = "at least"; |
| 339 | llr_status = lttng_log_level_rule_at_least_as_severe_as_get_level( |
| 340 | log_level_rule, &log_level); |
| 341 | break; |
| 342 | default: |
| 343 | abort(); |
| 344 | } |
| 345 | |
| 346 | LTTNG_ASSERT(llr_status == LTTNG_LOG_LEVEL_RULE_STATUS_OK); |
| 347 | |
| 348 | pretty_loglevel_name = get_pretty_loglevel_name( |
| 349 | event_rule_type, log_level); |
| 350 | if (pretty_loglevel_name) { |
| 351 | _MSG(", log level %s %s", log_level_op, |
| 352 | pretty_loglevel_name); |
| 353 | } else { |
| 354 | _MSG(", log level %s %d", log_level_op, log_level); |
| 355 | } |
| 356 | } else { |
| 357 | LTTNG_ASSERT(event_rule_status == LTTNG_EVENT_RULE_STATUS_UNSET); |
| 358 | } |
| 359 | |
| 360 | MSG(")"); |
| 361 | } |
| 362 | |
| 363 | static void print_kernel_probe_location( |
| 364 | const struct lttng_kernel_probe_location *location) |
| 365 | { |
| 366 | enum lttng_kernel_probe_location_status status; |
| 367 | switch (lttng_kernel_probe_location_get_type(location)) { |
| 368 | case LTTNG_KERNEL_PROBE_LOCATION_TYPE_ADDRESS: |
| 369 | { |
| 370 | uint64_t address; |
| 371 | |
| 372 | status = lttng_kernel_probe_location_address_get_address( |
| 373 | location, &address); |
| 374 | if (status != LTTNG_KERNEL_PROBE_LOCATION_STATUS_OK) { |
| 375 | ERR("Getting kernel probe location address failed."); |
| 376 | goto end; |
| 377 | } |
| 378 | |
| 379 | _MSG("0x%" PRIx64, address); |
| 380 | |
| 381 | break; |
| 382 | } |
| 383 | case LTTNG_KERNEL_PROBE_LOCATION_TYPE_SYMBOL_OFFSET: |
| 384 | { |
| 385 | uint64_t offset; |
| 386 | const char *symbol_name; |
| 387 | |
| 388 | symbol_name = lttng_kernel_probe_location_symbol_get_name( |
| 389 | location); |
| 390 | if (!symbol_name) { |
| 391 | ERR("Getting kernel probe location symbol name failed."); |
| 392 | goto end; |
| 393 | } |
| 394 | |
| 395 | status = lttng_kernel_probe_location_symbol_get_offset( |
| 396 | location, &offset); |
| 397 | if (status != LTTNG_KERNEL_PROBE_LOCATION_STATUS_OK) { |
| 398 | ERR("Getting kernel probe location address failed."); |
| 399 | goto end; |
| 400 | } |
| 401 | |
| 402 | if (offset == 0) { |
| 403 | _MSG("%s", symbol_name); |
| 404 | } else { |
| 405 | _MSG("%s+0x%" PRIx64, symbol_name, offset); |
| 406 | } |
| 407 | |
| 408 | break; |
| 409 | } |
| 410 | default: |
| 411 | abort(); |
| 412 | }; |
| 413 | end: |
| 414 | return; |
| 415 | } |
| 416 | |
| 417 | static |
| 418 | void print_event_rule_kernel_probe(const struct lttng_event_rule *event_rule) |
| 419 | { |
| 420 | enum lttng_event_rule_status event_rule_status; |
| 421 | const char *name; |
| 422 | const struct lttng_kernel_probe_location *location; |
| 423 | |
| 424 | LTTNG_ASSERT(lttng_event_rule_get_type(event_rule) == LTTNG_EVENT_RULE_TYPE_KERNEL_KPROBE); |
| 425 | |
| 426 | event_rule_status = lttng_event_rule_kernel_kprobe_get_event_name(event_rule, &name); |
| 427 | if (event_rule_status != LTTNG_EVENT_RULE_STATUS_OK) { |
| 428 | ERR("Failed to get kprobe event rule's name."); |
| 429 | goto end; |
| 430 | } |
| 431 | |
| 432 | event_rule_status = lttng_event_rule_kernel_kprobe_get_location( |
| 433 | event_rule, &location); |
| 434 | if (event_rule_status != LTTNG_EVENT_RULE_STATUS_OK) { |
| 435 | ERR("Failed to get kprobe event rule's location."); |
| 436 | goto end; |
| 437 | } |
| 438 | |
| 439 | _MSG(" rule: %s (type: kernel:kprobe, location: ", name); |
| 440 | |
| 441 | print_kernel_probe_location(location); |
| 442 | |
| 443 | MSG(")"); |
| 444 | |
| 445 | end: |
| 446 | return; |
| 447 | } |
| 448 | |
| 449 | static |
| 450 | void print_event_rule_userspace_probe(const struct lttng_event_rule *event_rule) |
| 451 | { |
| 452 | enum lttng_event_rule_status event_rule_status; |
| 453 | const char *name; |
| 454 | const struct lttng_userspace_probe_location *location; |
| 455 | enum lttng_userspace_probe_location_type userspace_probe_location_type; |
| 456 | |
| 457 | LTTNG_ASSERT(lttng_event_rule_get_type(event_rule) == LTTNG_EVENT_RULE_TYPE_KERNEL_UPROBE); |
| 458 | |
| 459 | event_rule_status = lttng_event_rule_kernel_uprobe_get_event_name( |
| 460 | event_rule, &name); |
| 461 | if (event_rule_status != LTTNG_EVENT_RULE_STATUS_OK) { |
| 462 | ERR("Failed to get uprobe event rule's name."); |
| 463 | goto end; |
| 464 | } |
| 465 | |
| 466 | event_rule_status = lttng_event_rule_kernel_uprobe_get_location( |
| 467 | event_rule, &location); |
| 468 | if (event_rule_status != LTTNG_EVENT_RULE_STATUS_OK) { |
| 469 | ERR("Failed to get uprobe event rule's location."); |
| 470 | goto end; |
| 471 | } |
| 472 | |
| 473 | _MSG(" rule: %s (type: kernel:uprobe, ", name); |
| 474 | |
| 475 | userspace_probe_location_type = |
| 476 | lttng_userspace_probe_location_get_type(location); |
| 477 | |
| 478 | switch (userspace_probe_location_type) { |
| 479 | case LTTNG_USERSPACE_PROBE_LOCATION_TYPE_FUNCTION: |
| 480 | { |
| 481 | const char *binary_path, *function_name; |
| 482 | |
| 483 | binary_path = lttng_userspace_probe_location_function_get_binary_path( |
| 484 | location); |
| 485 | function_name = lttng_userspace_probe_location_function_get_function_name( |
| 486 | location); |
| 487 | |
| 488 | _MSG("location type: ELF, location: %s:%s", binary_path, function_name); |
| 489 | break; |
| 490 | } |
| 491 | case LTTNG_USERSPACE_PROBE_LOCATION_TYPE_TRACEPOINT: |
| 492 | { |
| 493 | const char *binary_path, *provider_name, *probe_name; |
| 494 | |
| 495 | binary_path = lttng_userspace_probe_location_tracepoint_get_binary_path( |
| 496 | location); |
| 497 | provider_name = lttng_userspace_probe_location_tracepoint_get_provider_name( |
| 498 | location); |
| 499 | probe_name = lttng_userspace_probe_location_tracepoint_get_probe_name( |
| 500 | location); |
| 501 | _MSG("location type: SDT, location: %s:%s:%s", binary_path, provider_name, probe_name); |
| 502 | break; |
| 503 | } |
| 504 | default: |
| 505 | abort(); |
| 506 | } |
| 507 | |
| 508 | MSG(")"); |
| 509 | |
| 510 | end: |
| 511 | return; |
| 512 | } |
| 513 | |
| 514 | static |
| 515 | void print_event_rule_syscall(const struct lttng_event_rule *event_rule) |
| 516 | { |
| 517 | const char *pattern, *filter; |
| 518 | enum lttng_event_rule_status event_rule_status; |
| 519 | enum lttng_event_rule_kernel_syscall_emission_site emission_site; |
| 520 | |
| 521 | LTTNG_ASSERT(lttng_event_rule_get_type(event_rule) == LTTNG_EVENT_RULE_TYPE_KERNEL_SYSCALL); |
| 522 | |
| 523 | emission_site = |
| 524 | lttng_event_rule_kernel_syscall_get_emission_site(event_rule); |
| 525 | |
| 526 | event_rule_status = lttng_event_rule_kernel_syscall_get_name_pattern( |
| 527 | event_rule, &pattern); |
| 528 | LTTNG_ASSERT(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK); |
| 529 | |
| 530 | _MSG(" rule: %s (type: kernel:syscall:%s", pattern, |
| 531 | lttng_event_rule_kernel_syscall_emission_site_str( |
| 532 | emission_site)); |
| 533 | |
| 534 | event_rule_status = lttng_event_rule_kernel_syscall_get_filter( |
| 535 | event_rule, &filter); |
| 536 | if (event_rule_status == LTTNG_EVENT_RULE_STATUS_OK) { |
| 537 | _MSG(", filter: %s", filter); |
| 538 | } else { |
| 539 | LTTNG_ASSERT(event_rule_status == LTTNG_EVENT_RULE_STATUS_UNSET); |
| 540 | } |
| 541 | |
| 542 | MSG(")"); |
| 543 | } |
| 544 | |
| 545 | static |
| 546 | void print_event_rule(const struct lttng_event_rule *event_rule) |
| 547 | { |
| 548 | const enum lttng_event_rule_type event_rule_type = |
| 549 | lttng_event_rule_get_type(event_rule); |
| 550 | |
| 551 | switch (event_rule_type) { |
| 552 | case LTTNG_EVENT_RULE_TYPE_USER_TRACEPOINT: |
| 553 | print_event_rule_user_tracepoint(event_rule); |
| 554 | break; |
| 555 | case LTTNG_EVENT_RULE_TYPE_KERNEL_TRACEPOINT: |
| 556 | print_event_rule_kernel_tracepoint(event_rule); |
| 557 | break; |
| 558 | case LTTNG_EVENT_RULE_TYPE_JUL_LOGGING: |
| 559 | case LTTNG_EVENT_RULE_TYPE_LOG4J_LOGGING: |
| 560 | case LTTNG_EVENT_RULE_TYPE_PYTHON_LOGGING: |
| 561 | print_event_rule_logging(event_rule); |
| 562 | break; |
| 563 | case LTTNG_EVENT_RULE_TYPE_KERNEL_KPROBE: |
| 564 | print_event_rule_kernel_probe(event_rule); |
| 565 | break; |
| 566 | case LTTNG_EVENT_RULE_TYPE_KERNEL_UPROBE: |
| 567 | print_event_rule_userspace_probe(event_rule); |
| 568 | break; |
| 569 | case LTTNG_EVENT_RULE_TYPE_KERNEL_SYSCALL: |
| 570 | print_event_rule_syscall(event_rule); |
| 571 | break; |
| 572 | default: |
| 573 | abort(); |
| 574 | } |
| 575 | } |
| 576 | |
| 577 | static |
| 578 | void print_one_event_expr(const struct lttng_event_expr *event_expr) |
| 579 | { |
| 580 | enum lttng_event_expr_type type; |
| 581 | |
| 582 | type = lttng_event_expr_get_type(event_expr); |
| 583 | |
| 584 | switch (type) { |
| 585 | case LTTNG_EVENT_EXPR_TYPE_EVENT_PAYLOAD_FIELD: |
| 586 | { |
| 587 | const char *name; |
| 588 | |
| 589 | name = lttng_event_expr_event_payload_field_get_name( |
| 590 | event_expr); |
| 591 | _MSG("%s", name); |
| 592 | |
| 593 | break; |
| 594 | } |
| 595 | case LTTNG_EVENT_EXPR_TYPE_CHANNEL_CONTEXT_FIELD: |
| 596 | { |
| 597 | const char *name; |
| 598 | |
| 599 | name = lttng_event_expr_channel_context_field_get_name( |
| 600 | event_expr); |
| 601 | _MSG("$ctx.%s", name); |
| 602 | |
| 603 | break; |
| 604 | } |
| 605 | case LTTNG_EVENT_EXPR_TYPE_APP_SPECIFIC_CONTEXT_FIELD: |
| 606 | { |
| 607 | const char *provider_name; |
| 608 | const char *type_name; |
| 609 | |
| 610 | provider_name = lttng_event_expr_app_specific_context_field_get_provider_name( |
| 611 | event_expr); |
| 612 | type_name = lttng_event_expr_app_specific_context_field_get_type_name( |
| 613 | event_expr); |
| 614 | |
| 615 | _MSG("$app.%s:%s", provider_name, type_name); |
| 616 | |
| 617 | break; |
| 618 | } |
| 619 | case LTTNG_EVENT_EXPR_TYPE_ARRAY_FIELD_ELEMENT: |
| 620 | { |
| 621 | unsigned int index; |
| 622 | const struct lttng_event_expr *parent_expr; |
| 623 | enum lttng_event_expr_status status; |
| 624 | |
| 625 | parent_expr = lttng_event_expr_array_field_element_get_parent_expr( |
| 626 | event_expr); |
| 627 | LTTNG_ASSERT(parent_expr != NULL); |
| 628 | |
| 629 | print_one_event_expr(parent_expr); |
| 630 | |
| 631 | status = lttng_event_expr_array_field_element_get_index( |
| 632 | event_expr, &index); |
| 633 | LTTNG_ASSERT(status == LTTNG_EVENT_EXPR_STATUS_OK); |
| 634 | |
| 635 | _MSG("[%u]", index); |
| 636 | |
| 637 | break; |
| 638 | } |
| 639 | default: |
| 640 | abort(); |
| 641 | } |
| 642 | } |
| 643 | |
| 644 | static |
| 645 | void print_indentation(unsigned int indentation_level) |
| 646 | { |
| 647 | unsigned int i; |
| 648 | |
| 649 | for (i = 0; i < indentation_level; i++) { |
| 650 | _MSG(INDENTATION_LEVEL_STR); |
| 651 | } |
| 652 | } |
| 653 | |
| 654 | static |
| 655 | void print_error_query_results(struct lttng_error_query_results *results, |
| 656 | unsigned int base_indentation_level) |
| 657 | { |
| 658 | unsigned int i, count, printed_errors_count = 0; |
| 659 | enum lttng_error_query_results_status results_status; |
| 660 | |
| 661 | results_status = lttng_error_query_results_get_count(results, &count); |
| 662 | LTTNG_ASSERT(results_status == LTTNG_ERROR_QUERY_RESULTS_STATUS_OK); |
| 663 | |
| 664 | LTTNG_ASSERT(results); |
| 665 | |
| 666 | print_indentation(base_indentation_level); |
| 667 | _MSG("errors:"); |
| 668 | |
| 669 | for (i = 0; i < count; i++) { |
| 670 | const struct lttng_error_query_result *result; |
| 671 | enum lttng_error_query_result_status result_status; |
| 672 | const char *result_name; |
| 673 | const char *result_description; |
| 674 | uint64_t result_value; |
| 675 | |
| 676 | results_status = lttng_error_query_results_get_result( |
| 677 | results, &result, i); |
| 678 | LTTNG_ASSERT(results_status == LTTNG_ERROR_QUERY_RESULTS_STATUS_OK); |
| 679 | |
| 680 | result_status = lttng_error_query_result_get_name( |
| 681 | result, &result_name); |
| 682 | LTTNG_ASSERT(result_status == LTTNG_ERROR_QUERY_RESULT_STATUS_OK); |
| 683 | result_status = lttng_error_query_result_get_description( |
| 684 | result, &result_description); |
| 685 | LTTNG_ASSERT(result_status == LTTNG_ERROR_QUERY_RESULT_STATUS_OK); |
| 686 | |
| 687 | |
| 688 | if (lttng_error_query_result_get_type(result) == |
| 689 | LTTNG_ERROR_QUERY_RESULT_TYPE_COUNTER) { |
| 690 | result_status = lttng_error_query_result_counter_get_value( |
| 691 | result, &result_value); |
| 692 | LTTNG_ASSERT(result_status == |
| 693 | LTTNG_ERROR_QUERY_RESULT_STATUS_OK); |
| 694 | if (result_value == 0) { |
| 695 | continue; |
| 696 | } |
| 697 | |
| 698 | MSG(""); |
| 699 | print_indentation(base_indentation_level + 1); |
| 700 | |
| 701 | _MSG("%s: %" PRIu64, result_name, result_value); |
| 702 | printed_errors_count++; |
| 703 | } else { |
| 704 | MSG(""); |
| 705 | print_indentation(base_indentation_level + 1); |
| 706 | _MSG("Unknown error query result type for result '%s' (%s)", |
| 707 | result_name, result_description); |
| 708 | continue; |
| 709 | } |
| 710 | } |
| 711 | |
| 712 | if (printed_errors_count == 0) { |
| 713 | _MSG(" none"); |
| 714 | } |
| 715 | } |
| 716 | |
| 717 | static void print_condition_event_rule_matches( |
| 718 | const struct lttng_condition *condition) |
| 719 | { |
| 720 | const struct lttng_event_rule *event_rule; |
| 721 | enum lttng_condition_status condition_status; |
| 722 | unsigned int cap_desc_count, i; |
| 723 | |
| 724 | condition_status = lttng_condition_event_rule_matches_get_rule( |
| 725 | condition, &event_rule); |
| 726 | LTTNG_ASSERT(condition_status == LTTNG_CONDITION_STATUS_OK); |
| 727 | |
| 728 | print_event_rule(event_rule); |
| 729 | |
| 730 | condition_status = |
| 731 | lttng_condition_event_rule_matches_get_capture_descriptor_count( |
| 732 | condition, &cap_desc_count); |
| 733 | LTTNG_ASSERT(condition_status == LTTNG_CONDITION_STATUS_OK); |
| 734 | |
| 735 | if (cap_desc_count > 0) { |
| 736 | MSG(" captures:"); |
| 737 | |
| 738 | for (i = 0; i < cap_desc_count; i++) { |
| 739 | const struct lttng_event_expr *cap_desc = |
| 740 | lttng_condition_event_rule_matches_get_capture_descriptor_at_index( |
| 741 | condition, i); |
| 742 | |
| 743 | _MSG(" - "); |
| 744 | print_one_event_expr(cap_desc); |
| 745 | MSG(""); |
| 746 | } |
| 747 | } |
| 748 | } |
| 749 | |
| 750 | static void print_action_errors(const struct lttng_trigger *trigger, |
| 751 | const struct lttng_action *action, |
| 752 | const uint64_t *action_path_indexes, |
| 753 | size_t action_path_length) |
| 754 | { |
| 755 | enum lttng_error_code error_query_ret; |
| 756 | struct lttng_error_query_results *results = NULL; |
| 757 | const char *trigger_name; |
| 758 | uid_t trigger_uid; |
| 759 | enum lttng_trigger_status trigger_status; |
| 760 | struct lttng_error_query *query; |
| 761 | struct lttng_action_path *action_path = lttng_action_path_create( |
| 762 | action_path_indexes, action_path_length); |
| 763 | |
| 764 | LTTNG_ASSERT(action_path); |
| 765 | |
| 766 | query = lttng_error_query_action_create(trigger, action_path); |
| 767 | LTTNG_ASSERT(query); |
| 768 | |
| 769 | trigger_status = lttng_trigger_get_name(trigger, &trigger_name); |
| 770 | /* |
| 771 | * Anonymous triggers are not listed; this would be an internal error. |
| 772 | */ |
| 773 | LTTNG_ASSERT(trigger_status == LTTNG_TRIGGER_STATUS_OK); |
| 774 | |
| 775 | trigger_status = lttng_trigger_get_owner_uid(trigger, &trigger_uid); |
| 776 | LTTNG_ASSERT(trigger_status == LTTNG_TRIGGER_STATUS_OK); |
| 777 | |
| 778 | error_query_ret = lttng_error_query_execute( |
| 779 | query, lttng_session_daemon_command_endpoint, &results); |
| 780 | if (error_query_ret != LTTNG_OK) { |
| 781 | ERR("Failed to query errors of trigger '%s' (owner uid: %d): %s", |
| 782 | trigger_name, (int) trigger_uid, |
| 783 | lttng_strerror(-error_query_ret)); |
| 784 | goto end; |
| 785 | } |
| 786 | |
| 787 | print_error_query_results(results, 3); |
| 788 | |
| 789 | end: |
| 790 | MSG(""); |
| 791 | lttng_error_query_destroy(query); |
| 792 | lttng_error_query_results_destroy(results); |
| 793 | lttng_action_path_destroy(action_path); |
| 794 | } |
| 795 | |
| 796 | static |
| 797 | void print_one_action(const struct lttng_trigger *trigger, |
| 798 | const struct lttng_action *action, |
| 799 | const uint64_t *action_path_indexes, |
| 800 | size_t action_path_length) |
| 801 | { |
| 802 | enum lttng_action_type action_type; |
| 803 | enum lttng_action_status action_status; |
| 804 | const struct lttng_rate_policy *policy = NULL; |
| 805 | const char *value; |
| 806 | |
| 807 | action_type = lttng_action_get_type(action); |
| 808 | LTTNG_ASSERT(action_type != LTTNG_ACTION_TYPE_LIST); |
| 809 | |
| 810 | switch (action_type) { |
| 811 | case LTTNG_ACTION_TYPE_NOTIFY: |
| 812 | _MSG("notify"); |
| 813 | |
| 814 | action_status = lttng_action_notify_get_rate_policy( |
| 815 | action, &policy); |
| 816 | if (action_status != LTTNG_ACTION_STATUS_OK) { |
| 817 | ERR("Failed to retrieve rate policy."); |
| 818 | goto end; |
| 819 | } |
| 820 | break; |
| 821 | case LTTNG_ACTION_TYPE_START_SESSION: |
| 822 | action_status = lttng_action_start_session_get_session_name( |
| 823 | action, &value); |
| 824 | LTTNG_ASSERT(action_status == LTTNG_ACTION_STATUS_OK); |
| 825 | _MSG("start session `%s`", value); |
| 826 | |
| 827 | action_status = lttng_action_start_session_get_rate_policy( |
| 828 | action, &policy); |
| 829 | if (action_status != LTTNG_ACTION_STATUS_OK) { |
| 830 | ERR("Failed to retrieve rate policy."); |
| 831 | goto end; |
| 832 | } |
| 833 | break; |
| 834 | case LTTNG_ACTION_TYPE_STOP_SESSION: |
| 835 | action_status = lttng_action_stop_session_get_session_name( |
| 836 | action, &value); |
| 837 | LTTNG_ASSERT(action_status == LTTNG_ACTION_STATUS_OK); |
| 838 | _MSG("stop session `%s`", value); |
| 839 | |
| 840 | action_status = lttng_action_stop_session_get_rate_policy( |
| 841 | action, &policy); |
| 842 | if (action_status != LTTNG_ACTION_STATUS_OK) { |
| 843 | ERR("Failed to retrieve rate policy."); |
| 844 | goto end; |
| 845 | } |
| 846 | break; |
| 847 | case LTTNG_ACTION_TYPE_ROTATE_SESSION: |
| 848 | action_status = lttng_action_rotate_session_get_session_name( |
| 849 | action, &value); |
| 850 | LTTNG_ASSERT(action_status == LTTNG_ACTION_STATUS_OK); |
| 851 | _MSG("rotate session `%s`", value); |
| 852 | |
| 853 | action_status = lttng_action_rotate_session_get_rate_policy( |
| 854 | action, &policy); |
| 855 | if (action_status != LTTNG_ACTION_STATUS_OK) { |
| 856 | ERR("Failed to retrieve rate policy."); |
| 857 | goto end; |
| 858 | } |
| 859 | break; |
| 860 | case LTTNG_ACTION_TYPE_SNAPSHOT_SESSION: |
| 861 | { |
| 862 | const struct lttng_snapshot_output *output; |
| 863 | |
| 864 | action_status = lttng_action_snapshot_session_get_session_name( |
| 865 | action, &value); |
| 866 | LTTNG_ASSERT(action_status == LTTNG_ACTION_STATUS_OK); |
| 867 | _MSG("snapshot session `%s`", value); |
| 868 | |
| 869 | action_status = lttng_action_snapshot_session_get_output( |
| 870 | action, &output); |
| 871 | if (action_status == LTTNG_ACTION_STATUS_OK) { |
| 872 | const char *name; |
| 873 | uint64_t max_size; |
| 874 | const char *ctrl_url, *data_url; |
| 875 | bool starts_with_file, starts_with_net, starts_with_net6; |
| 876 | |
| 877 | ctrl_url = lttng_snapshot_output_get_ctrl_url(output); |
| 878 | LTTNG_ASSERT(ctrl_url && strlen(ctrl_url) > 0); |
| 879 | |
| 880 | data_url = lttng_snapshot_output_get_data_url(output); |
| 881 | LTTNG_ASSERT(data_url); |
| 882 | |
| 883 | starts_with_file = strncmp(ctrl_url, "file://", strlen("file://")) == 0; |
| 884 | starts_with_net = strncmp(ctrl_url, "net://", strlen("net://")) == 0; |
| 885 | starts_with_net6 = strncmp(ctrl_url, "net6://", strlen("net6://")) == 0; |
| 886 | |
| 887 | if (ctrl_url[0] == '/' || starts_with_file) { |
| 888 | if (starts_with_file) { |
| 889 | ctrl_url += strlen("file://"); |
| 890 | } |
| 891 | |
| 892 | _MSG(", path: %s", ctrl_url); |
| 893 | } else if (starts_with_net || starts_with_net6) { |
| 894 | _MSG(", url: %s", ctrl_url); |
| 895 | } else { |
| 896 | LTTNG_ASSERT(strlen(data_url) > 0); |
| 897 | |
| 898 | _MSG(", control url: %s, data url: %s", ctrl_url, data_url); |
| 899 | } |
| 900 | |
| 901 | name = lttng_snapshot_output_get_name(output); |
| 902 | LTTNG_ASSERT(name); |
| 903 | if (strlen(name) > 0) { |
| 904 | _MSG(", name: %s", name); |
| 905 | } |
| 906 | |
| 907 | max_size = lttng_snapshot_output_get_maxsize(output); |
| 908 | if (max_size != -1ULL) { |
| 909 | _MSG(", max size: %" PRIu64, max_size); |
| 910 | } |
| 911 | } |
| 912 | |
| 913 | action_status = lttng_action_snapshot_session_get_rate_policy( |
| 914 | action, &policy); |
| 915 | if (action_status != LTTNG_ACTION_STATUS_OK) { |
| 916 | ERR("Failed to retrieve rate policy."); |
| 917 | goto end; |
| 918 | } |
| 919 | break; |
| 920 | } |
| 921 | default: |
| 922 | abort(); |
| 923 | } |
| 924 | |
| 925 | if (policy) { |
| 926 | enum lttng_rate_policy_type policy_type; |
| 927 | enum lttng_rate_policy_status policy_status; |
| 928 | uint64_t policy_value = 0; |
| 929 | |
| 930 | policy_type = lttng_rate_policy_get_type(policy); |
| 931 | |
| 932 | switch (policy_type) { |
| 933 | case LTTNG_RATE_POLICY_TYPE_EVERY_N: |
| 934 | policy_status = lttng_rate_policy_every_n_get_interval( |
| 935 | policy, &policy_value); |
| 936 | if (policy_status != LTTNG_RATE_POLICY_STATUS_OK) { |
| 937 | ERR("Failed to get action rate policy interval"); |
| 938 | goto end; |
| 939 | } |
| 940 | if (policy_value > 1) { |
| 941 | /* The default is 1 so print only when it is a |
| 942 | * special case. |
| 943 | */ |
| 944 | _MSG(", rate policy: every %" PRIu64 |
| 945 | " occurrences", |
| 946 | policy_value); |
| 947 | } |
| 948 | break; |
| 949 | case LTTNG_RATE_POLICY_TYPE_ONCE_AFTER_N: |
| 950 | policy_status = lttng_rate_policy_once_after_n_get_threshold( |
| 951 | policy, &policy_value); |
| 952 | if (policy_status != LTTNG_RATE_POLICY_STATUS_OK) { |
| 953 | ERR("Failed to get action rate policy interval"); |
| 954 | goto end; |
| 955 | } |
| 956 | _MSG(", rate policy: once after %" PRIu64 |
| 957 | " occurrences", |
| 958 | policy_value); |
| 959 | break; |
| 960 | default: |
| 961 | abort(); |
| 962 | } |
| 963 | } |
| 964 | |
| 965 | MSG(""); |
| 966 | print_action_errors(trigger, action, action_path_indexes, |
| 967 | action_path_length); |
| 968 | |
| 969 | end: |
| 970 | return; |
| 971 | } |
| 972 | |
| 973 | static |
| 974 | void print_trigger_errors(const struct lttng_trigger *trigger) |
| 975 | { |
| 976 | enum lttng_error_code error_query_ret; |
| 977 | struct lttng_error_query_results *results = NULL; |
| 978 | enum lttng_trigger_status trigger_status; |
| 979 | const char *trigger_name; |
| 980 | uid_t trigger_uid; |
| 981 | struct lttng_error_query *query = |
| 982 | lttng_error_query_trigger_create(trigger); |
| 983 | |
| 984 | LTTNG_ASSERT(query); |
| 985 | /* |
| 986 | * Anonymous triggers are not listed; this would be an internal error. |
| 987 | */ |
| 988 | trigger_status = lttng_trigger_get_name(trigger, &trigger_name); |
| 989 | LTTNG_ASSERT(trigger_status == LTTNG_TRIGGER_STATUS_OK); |
| 990 | |
| 991 | trigger_status = lttng_trigger_get_owner_uid(trigger, &trigger_uid); |
| 992 | LTTNG_ASSERT(trigger_status == LTTNG_TRIGGER_STATUS_OK); |
| 993 | |
| 994 | error_query_ret = lttng_error_query_execute( |
| 995 | query, lttng_session_daemon_command_endpoint, &results); |
| 996 | if (error_query_ret != LTTNG_OK) { |
| 997 | ERR("Failed to query errors of trigger '%s' (owner uid: %d): %s", |
| 998 | trigger_name, (int) trigger_uid, |
| 999 | lttng_strerror(-error_query_ret)); |
| 1000 | goto end; |
| 1001 | } |
| 1002 | |
| 1003 | print_error_query_results(results, 1); |
| 1004 | |
| 1005 | end: |
| 1006 | MSG(""); |
| 1007 | lttng_error_query_destroy(query); |
| 1008 | lttng_error_query_results_destroy(results); |
| 1009 | } |
| 1010 | |
| 1011 | static |
| 1012 | void print_condition_errors(const struct lttng_trigger *trigger) |
| 1013 | { |
| 1014 | enum lttng_error_code error_query_ret; |
| 1015 | struct lttng_error_query_results *results = NULL; |
| 1016 | enum lttng_trigger_status trigger_status; |
| 1017 | const char *trigger_name; |
| 1018 | uid_t trigger_uid; |
| 1019 | struct lttng_error_query *query = |
| 1020 | lttng_error_query_condition_create(trigger); |
| 1021 | |
| 1022 | LTTNG_ASSERT(query); |
| 1023 | /* |
| 1024 | * Anonymous triggers are not listed; this would be an internal error. |
| 1025 | */ |
| 1026 | trigger_status = lttng_trigger_get_name(trigger, &trigger_name); |
| 1027 | LTTNG_ASSERT(trigger_status == LTTNG_TRIGGER_STATUS_OK); |
| 1028 | |
| 1029 | trigger_status = lttng_trigger_get_owner_uid(trigger, &trigger_uid); |
| 1030 | LTTNG_ASSERT(trigger_status == LTTNG_TRIGGER_STATUS_OK); |
| 1031 | |
| 1032 | error_query_ret = lttng_error_query_execute( |
| 1033 | query, lttng_session_daemon_command_endpoint, &results); |
| 1034 | if (error_query_ret != LTTNG_OK) { |
| 1035 | ERR("Failed to query errors of condition of trigger '%s' (owner uid: %d): %s", |
| 1036 | trigger_name, (int) trigger_uid, |
| 1037 | lttng_strerror(-error_query_ret)); |
| 1038 | goto end; |
| 1039 | } |
| 1040 | |
| 1041 | print_error_query_results(results, 2); |
| 1042 | |
| 1043 | end: |
| 1044 | MSG(""); |
| 1045 | lttng_error_query_destroy(query); |
| 1046 | lttng_error_query_results_destroy(results); |
| 1047 | } |
| 1048 | |
| 1049 | static |
| 1050 | void print_one_trigger(const struct lttng_trigger *trigger) |
| 1051 | { |
| 1052 | const struct lttng_condition *condition; |
| 1053 | enum lttng_condition_type condition_type; |
| 1054 | const struct lttng_action *action; |
| 1055 | enum lttng_action_type action_type; |
| 1056 | enum lttng_trigger_status trigger_status; |
| 1057 | const char *name; |
| 1058 | uid_t trigger_uid; |
| 1059 | |
| 1060 | /* |
| 1061 | * Anonymous triggers are not listed since they can't be specified nor |
| 1062 | * referenced through the CLI. |
| 1063 | */ |
| 1064 | trigger_status = lttng_trigger_get_name(trigger, &name); |
| 1065 | if (trigger_status == LTTNG_TRIGGER_STATUS_UNSET) { |
| 1066 | goto end; |
| 1067 | } |
| 1068 | |
| 1069 | LTTNG_ASSERT(trigger_status == LTTNG_TRIGGER_STATUS_OK); |
| 1070 | |
| 1071 | trigger_status = lttng_trigger_get_owner_uid(trigger, &trigger_uid); |
| 1072 | LTTNG_ASSERT(trigger_status == LTTNG_TRIGGER_STATUS_OK); |
| 1073 | |
| 1074 | MSG("- name: %s", name); |
| 1075 | MSG(" owner uid: %d", trigger_uid); |
| 1076 | |
| 1077 | condition = lttng_trigger_get_const_condition(trigger); |
| 1078 | condition_type = lttng_condition_get_type(condition); |
| 1079 | MSG(" condition: %s", lttng_condition_type_str(condition_type)); |
| 1080 | switch (condition_type) { |
| 1081 | case LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE: |
| 1082 | print_condition_session_consumed_size(condition); |
| 1083 | break; |
| 1084 | case LTTNG_CONDITION_TYPE_BUFFER_USAGE_HIGH: |
| 1085 | case LTTNG_CONDITION_TYPE_BUFFER_USAGE_LOW: |
| 1086 | print_condition_buffer_usage(condition); |
| 1087 | break; |
| 1088 | case LTTNG_CONDITION_TYPE_SESSION_ROTATION_ONGOING: |
| 1089 | case LTTNG_CONDITION_TYPE_SESSION_ROTATION_COMPLETED: |
| 1090 | print_condition_session_rotation(condition); |
| 1091 | break; |
| 1092 | case LTTNG_CONDITION_TYPE_EVENT_RULE_MATCHES: |
| 1093 | print_condition_event_rule_matches(condition); |
| 1094 | break; |
| 1095 | default: |
| 1096 | abort(); |
| 1097 | } |
| 1098 | |
| 1099 | print_condition_errors(trigger); |
| 1100 | |
| 1101 | action = lttng_trigger_get_const_action(trigger); |
| 1102 | action_type = lttng_action_get_type(action); |
| 1103 | if (action_type == LTTNG_ACTION_TYPE_LIST) { |
| 1104 | unsigned int count, i; |
| 1105 | enum lttng_action_status action_status; |
| 1106 | |
| 1107 | MSG(" actions:"); |
| 1108 | |
| 1109 | action_status = lttng_action_list_get_count(action, &count); |
| 1110 | LTTNG_ASSERT(action_status == LTTNG_ACTION_STATUS_OK); |
| 1111 | |
| 1112 | for (i = 0; i < count; i++) { |
| 1113 | const uint64_t action_path_index = i; |
| 1114 | const struct lttng_action *subaction = |
| 1115 | lttng_action_list_get_at_index( |
| 1116 | action, i); |
| 1117 | |
| 1118 | _MSG(" "); |
| 1119 | print_one_action(trigger, subaction, &action_path_index, |
| 1120 | 1); |
| 1121 | } |
| 1122 | } else { |
| 1123 | _MSG(" action:"); |
| 1124 | print_one_action(trigger, action, NULL, 0); |
| 1125 | } |
| 1126 | |
| 1127 | print_trigger_errors(trigger); |
| 1128 | end: |
| 1129 | return; |
| 1130 | } |
| 1131 | |
| 1132 | static |
| 1133 | int compare_triggers_by_name(const void *a, const void *b) |
| 1134 | { |
| 1135 | const struct lttng_trigger *trigger_a = *((const struct lttng_trigger **) a); |
| 1136 | const struct lttng_trigger *trigger_b = *((const struct lttng_trigger **) b); |
| 1137 | const char *name_a, *name_b; |
| 1138 | enum lttng_trigger_status trigger_status; |
| 1139 | |
| 1140 | /* Anonymous triggers are not reachable here. */ |
| 1141 | trigger_status = lttng_trigger_get_name(trigger_a, &name_a); |
| 1142 | LTTNG_ASSERT(trigger_status == LTTNG_TRIGGER_STATUS_OK); |
| 1143 | |
| 1144 | trigger_status = lttng_trigger_get_name(trigger_b, &name_b); |
| 1145 | LTTNG_ASSERT(trigger_status == LTTNG_TRIGGER_STATUS_OK); |
| 1146 | |
| 1147 | return strcmp(name_a, name_b); |
| 1148 | } |
| 1149 | |
| 1150 | static int print_sorted_triggers(const struct lttng_triggers *triggers) |
| 1151 | { |
| 1152 | int ret; |
| 1153 | int i; |
| 1154 | struct lttng_dynamic_pointer_array sorted_triggers; |
| 1155 | enum lttng_trigger_status trigger_status; |
| 1156 | unsigned int num_triggers; |
| 1157 | |
| 1158 | lttng_dynamic_pointer_array_init(&sorted_triggers, NULL); |
| 1159 | |
| 1160 | trigger_status = lttng_triggers_get_count(triggers, &num_triggers); |
| 1161 | if (trigger_status != LTTNG_TRIGGER_STATUS_OK) { |
| 1162 | ERR("Failed to get trigger count."); |
| 1163 | goto error; |
| 1164 | } |
| 1165 | |
| 1166 | for (i = 0; i < num_triggers; i++) { |
| 1167 | int add_ret; |
| 1168 | const char *unused_name; |
| 1169 | const struct lttng_trigger *trigger = |
| 1170 | lttng_triggers_get_at_index(triggers, i); |
| 1171 | |
| 1172 | trigger_status = lttng_trigger_get_name(trigger, &unused_name); |
| 1173 | switch (trigger_status) { |
| 1174 | case LTTNG_TRIGGER_STATUS_OK: |
| 1175 | break; |
| 1176 | case LTTNG_TRIGGER_STATUS_UNSET: |
| 1177 | /* Don't list anonymous triggers. */ |
| 1178 | continue; |
| 1179 | default: |
| 1180 | abort(); |
| 1181 | } |
| 1182 | |
| 1183 | add_ret = lttng_dynamic_pointer_array_add_pointer( |
| 1184 | &sorted_triggers, (void *) trigger); |
| 1185 | if (add_ret) { |
| 1186 | ERR("Failed to allocate array of struct lttng_trigger *."); |
| 1187 | goto error; |
| 1188 | } |
| 1189 | } |
| 1190 | |
| 1191 | qsort(sorted_triggers.array.buffer.data, num_triggers, |
| 1192 | sizeof(struct lttng_trigger *), |
| 1193 | compare_triggers_by_name); |
| 1194 | |
| 1195 | for (i = 0; i < lttng_dynamic_pointer_array_get_count(&sorted_triggers); |
| 1196 | i++) { |
| 1197 | const struct lttng_trigger *trigger_to_print = (const struct lttng_trigger |
| 1198 | *) |
| 1199 | lttng_dynamic_pointer_array_get_pointer( |
| 1200 | &sorted_triggers, i); |
| 1201 | |
| 1202 | print_one_trigger(trigger_to_print); |
| 1203 | } |
| 1204 | |
| 1205 | ret = 0; |
| 1206 | goto end; |
| 1207 | error: |
| 1208 | ret = 1; |
| 1209 | |
| 1210 | end: |
| 1211 | lttng_dynamic_pointer_array_reset(&sorted_triggers); |
| 1212 | return ret; |
| 1213 | } |
| 1214 | |
| 1215 | static enum lttng_error_code mi_error_query_trigger_callback( |
| 1216 | const struct lttng_trigger *trigger, |
| 1217 | struct lttng_error_query_results **results) |
| 1218 | { |
| 1219 | enum lttng_error_code ret_code; |
| 1220 | struct lttng_error_query *query = |
| 1221 | lttng_error_query_trigger_create(trigger); |
| 1222 | |
| 1223 | LTTNG_ASSERT(results); |
| 1224 | LTTNG_ASSERT(query); |
| 1225 | |
| 1226 | ret_code = lttng_error_query_execute( |
| 1227 | query, lttng_session_daemon_command_endpoint, results); |
| 1228 | if (ret_code != LTTNG_OK) { |
| 1229 | enum lttng_trigger_status trigger_status; |
| 1230 | const char *trigger_name; |
| 1231 | uid_t trigger_uid; |
| 1232 | |
| 1233 | trigger_status = lttng_trigger_get_name(trigger, &trigger_name); |
| 1234 | LTTNG_ASSERT(trigger_status == LTTNG_TRIGGER_STATUS_OK); |
| 1235 | |
| 1236 | trigger_status = lttng_trigger_get_owner_uid( |
| 1237 | trigger, &trigger_uid); |
| 1238 | LTTNG_ASSERT(trigger_status == LTTNG_TRIGGER_STATUS_OK); |
| 1239 | |
| 1240 | ERR("Failed to query errors of trigger '%s' (owner uid: %d): %s", |
| 1241 | trigger_name, (int) trigger_uid, |
| 1242 | lttng_strerror(-ret_code)); |
| 1243 | } |
| 1244 | |
| 1245 | lttng_error_query_destroy(query); |
| 1246 | return ret_code; |
| 1247 | } |
| 1248 | |
| 1249 | static enum lttng_error_code mi_error_query_action_callback( |
| 1250 | const struct lttng_trigger *trigger, |
| 1251 | const struct lttng_action_path *action_path, |
| 1252 | struct lttng_error_query_results **results) |
| 1253 | { |
| 1254 | enum lttng_error_code ret_code; |
| 1255 | struct lttng_error_query *query = |
| 1256 | lttng_error_query_action_create(trigger, action_path); |
| 1257 | |
| 1258 | LTTNG_ASSERT(results); |
| 1259 | LTTNG_ASSERT(query); |
| 1260 | |
| 1261 | ret_code = lttng_error_query_execute( |
| 1262 | query, lttng_session_daemon_command_endpoint, results); |
| 1263 | if (ret_code != LTTNG_OK) { |
| 1264 | enum lttng_trigger_status trigger_status; |
| 1265 | const char *trigger_name; |
| 1266 | uid_t trigger_uid; |
| 1267 | |
| 1268 | trigger_status = lttng_trigger_get_name(trigger, &trigger_name); |
| 1269 | LTTNG_ASSERT(trigger_status == LTTNG_TRIGGER_STATUS_OK); |
| 1270 | |
| 1271 | trigger_status = lttng_trigger_get_owner_uid( |
| 1272 | trigger, &trigger_uid); |
| 1273 | LTTNG_ASSERT(trigger_status == LTTNG_TRIGGER_STATUS_OK); |
| 1274 | |
| 1275 | ERR("Failed to query errors of an action for trigger '%s' (owner uid: %d): %s", |
| 1276 | trigger_name, (int) trigger_uid, |
| 1277 | lttng_strerror(-ret_code)); |
| 1278 | } |
| 1279 | |
| 1280 | lttng_error_query_destroy(query); |
| 1281 | return ret_code; |
| 1282 | } |
| 1283 | |
| 1284 | static enum lttng_error_code mi_error_query_condition_callback( |
| 1285 | const struct lttng_trigger *trigger, |
| 1286 | struct lttng_error_query_results **results) |
| 1287 | { |
| 1288 | enum lttng_error_code ret_code; |
| 1289 | struct lttng_error_query *query = |
| 1290 | lttng_error_query_condition_create(trigger); |
| 1291 | |
| 1292 | LTTNG_ASSERT(results); |
| 1293 | LTTNG_ASSERT(query); |
| 1294 | |
| 1295 | ret_code = lttng_error_query_execute( |
| 1296 | query, lttng_session_daemon_command_endpoint, results); |
| 1297 | if (ret_code != LTTNG_OK) { |
| 1298 | enum lttng_trigger_status trigger_status; |
| 1299 | const char *trigger_name; |
| 1300 | uid_t trigger_uid; |
| 1301 | |
| 1302 | trigger_status = lttng_trigger_get_name(trigger, &trigger_name); |
| 1303 | LTTNG_ASSERT(trigger_status == LTTNG_TRIGGER_STATUS_OK); |
| 1304 | |
| 1305 | trigger_status = lttng_trigger_get_owner_uid( |
| 1306 | trigger, &trigger_uid); |
| 1307 | LTTNG_ASSERT(trigger_status == LTTNG_TRIGGER_STATUS_OK); |
| 1308 | |
| 1309 | ERR("Failed to query errors of of condition for condition of trigger '%s' (owner uid: %d): %s", |
| 1310 | trigger_name, (int) trigger_uid, |
| 1311 | lttng_strerror(-ret_code)); |
| 1312 | } |
| 1313 | |
| 1314 | lttng_error_query_destroy(query); |
| 1315 | return ret_code; |
| 1316 | } |
| 1317 | |
| 1318 | int cmd_list_triggers(int argc, const char **argv) |
| 1319 | { |
| 1320 | int ret; |
| 1321 | struct argpar_iter *argpar_iter = NULL; |
| 1322 | const struct argpar_item *argpar_item = NULL; |
| 1323 | struct lttng_triggers *triggers = NULL; |
| 1324 | struct mi_writer *mi_writer = NULL; |
| 1325 | |
| 1326 | argc--; |
| 1327 | argv++; |
| 1328 | |
| 1329 | argpar_iter = argpar_iter_create(argc, argv, list_trigger_options); |
| 1330 | if (!argpar_iter) { |
| 1331 | ERR("Failed to allocate an argpar iter."); |
| 1332 | goto error; |
| 1333 | } |
| 1334 | |
| 1335 | while (true) { |
| 1336 | enum parse_next_item_status status; |
| 1337 | |
| 1338 | status = parse_next_item(argpar_iter, &argpar_item, 1, argv, |
| 1339 | true, NULL, NULL); |
| 1340 | if (status == PARSE_NEXT_ITEM_STATUS_ERROR || |
| 1341 | status == PARSE_NEXT_ITEM_STATUS_ERROR_MEMORY) { |
| 1342 | goto error; |
| 1343 | } else if (status == PARSE_NEXT_ITEM_STATUS_END) { |
| 1344 | break; |
| 1345 | } |
| 1346 | |
| 1347 | assert(status == PARSE_NEXT_ITEM_STATUS_OK); |
| 1348 | |
| 1349 | if (argpar_item_type(argpar_item) == ARGPAR_ITEM_TYPE_OPT) { |
| 1350 | const struct argpar_opt_descr *descr = |
| 1351 | argpar_item_opt_descr(argpar_item); |
| 1352 | |
| 1353 | switch (descr->id) { |
| 1354 | case OPT_HELP: |
| 1355 | SHOW_HELP(); |
| 1356 | ret = 0; |
| 1357 | goto end; |
| 1358 | |
| 1359 | case OPT_LIST_OPTIONS: |
| 1360 | list_cmd_options_argpar( |
| 1361 | stdout, list_trigger_options); |
| 1362 | ret = 0; |
| 1363 | goto end; |
| 1364 | |
| 1365 | default: |
| 1366 | abort(); |
| 1367 | } |
| 1368 | |
| 1369 | } else { |
| 1370 | ERR("Unexpected argument: %s", |
| 1371 | argpar_item_non_opt_arg(argpar_item)); |
| 1372 | } |
| 1373 | } |
| 1374 | |
| 1375 | ret = lttng_list_triggers(&triggers); |
| 1376 | if (ret != LTTNG_OK) { |
| 1377 | ERR("Error listing triggers: %s.", lttng_strerror(-ret)); |
| 1378 | goto error; |
| 1379 | } |
| 1380 | |
| 1381 | if (lttng_opt_mi) { |
| 1382 | mi_writer = mi_lttng_writer_create( |
| 1383 | fileno(stdout), lttng_opt_mi); |
| 1384 | if (!mi_writer) { |
| 1385 | ret = CMD_ERROR; |
| 1386 | goto end; |
| 1387 | } |
| 1388 | |
| 1389 | /* Open command element. */ |
| 1390 | ret = mi_lttng_writer_command_open(mi_writer, |
| 1391 | mi_lttng_element_command_list_trigger); |
| 1392 | if (ret) { |
| 1393 | ret = CMD_ERROR; |
| 1394 | goto end; |
| 1395 | } |
| 1396 | |
| 1397 | /* Open output element. */ |
| 1398 | ret = mi_lttng_writer_open_element( |
| 1399 | mi_writer, mi_lttng_element_command_output); |
| 1400 | if (ret) { |
| 1401 | ret = CMD_ERROR; |
| 1402 | goto end; |
| 1403 | } |
| 1404 | } |
| 1405 | |
| 1406 | if (lttng_opt_mi) { |
| 1407 | const struct mi_lttng_error_query_callbacks callbacks = { |
| 1408 | .trigger_cb = mi_error_query_trigger_callback, |
| 1409 | .condition_cb = mi_error_query_condition_callback, |
| 1410 | .action_cb = mi_error_query_action_callback, |
| 1411 | }; |
| 1412 | |
| 1413 | ret = lttng_triggers_mi_serialize( |
| 1414 | triggers, mi_writer, &callbacks); |
| 1415 | if (ret != LTTNG_OK) { |
| 1416 | ERR("Error printing MI triggers: %s.", |
| 1417 | lttng_strerror(-ret)); |
| 1418 | goto error; |
| 1419 | } |
| 1420 | } else { |
| 1421 | ret = print_sorted_triggers(triggers); |
| 1422 | if (ret) { |
| 1423 | ERR("Error printing triggers"); |
| 1424 | goto error; |
| 1425 | } |
| 1426 | } |
| 1427 | |
| 1428 | /* Mi closing. */ |
| 1429 | if (lttng_opt_mi) { |
| 1430 | /* Close output element. */ |
| 1431 | ret = mi_lttng_writer_close_element(mi_writer); |
| 1432 | if (ret) { |
| 1433 | ret = CMD_ERROR; |
| 1434 | goto end; |
| 1435 | } |
| 1436 | |
| 1437 | /* Command element close. */ |
| 1438 | ret = mi_lttng_writer_command_close(mi_writer); |
| 1439 | if (ret) { |
| 1440 | ret = CMD_ERROR; |
| 1441 | goto end; |
| 1442 | } |
| 1443 | } |
| 1444 | |
| 1445 | ret = 0; |
| 1446 | goto end; |
| 1447 | |
| 1448 | error: |
| 1449 | ret = 1; |
| 1450 | |
| 1451 | end: |
| 1452 | argpar_item_destroy(argpar_item); |
| 1453 | argpar_iter_destroy(argpar_iter); |
| 1454 | lttng_triggers_destroy(triggers); |
| 1455 | /* Mi clean-up. */ |
| 1456 | if (mi_writer && mi_lttng_writer_destroy(mi_writer)) { |
| 1457 | /* Preserve original error code. */ |
| 1458 | ret = ret ? ret : CMD_ERROR; |
| 1459 | } |
| 1460 | return ret; |
| 1461 | } |