| 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/dynamic-array.h" |
| 14 | #include "common/mi-lttng.h" |
| 15 | /* For lttng_condition_type_str(). */ |
| 16 | #include "lttng/condition/condition-internal.h" |
| 17 | #include "lttng/condition/on-event.h" |
| 18 | #include "lttng/condition/on-event-internal.h" |
| 19 | /* For lttng_domain_type_str(). */ |
| 20 | #include "lttng/domain-internal.h" |
| 21 | #include "../loglevel.h" |
| 22 | #include <lttng/lttng.h> |
| 23 | |
| 24 | #ifdef LTTNG_EMBED_HELP |
| 25 | static const char help_msg[] = |
| 26 | #include <lttng-list-triggers.1.h> |
| 27 | ; |
| 28 | #endif |
| 29 | |
| 30 | enum { |
| 31 | OPT_HELP, |
| 32 | OPT_LIST_OPTIONS, |
| 33 | }; |
| 34 | |
| 35 | static const |
| 36 | struct argpar_opt_descr list_trigger_options[] = { |
| 37 | { OPT_HELP, 'h', "help", false }, |
| 38 | { OPT_LIST_OPTIONS, '\0', "list-options", false }, |
| 39 | ARGPAR_OPT_DESCR_SENTINEL, |
| 40 | }; |
| 41 | |
| 42 | /* |
| 43 | * Returns the human-readable log level name associated with a numerical value |
| 44 | * if there is one. The Log4j and JUL domains have discontinuous log level |
| 45 | * values (a value can fall between two labels). In those cases, NULL is |
| 46 | * returned. |
| 47 | */ |
| 48 | static const char *get_pretty_loglevel_name( |
| 49 | enum lttng_domain_type domain, int loglevel) |
| 50 | { |
| 51 | const char *name = NULL; |
| 52 | |
| 53 | switch (domain) { |
| 54 | case LTTNG_DOMAIN_UST: |
| 55 | name = loglevel_value_to_name(loglevel); |
| 56 | break; |
| 57 | case LTTNG_DOMAIN_LOG4J: |
| 58 | name = loglevel_log4j_value_to_name(loglevel); |
| 59 | break; |
| 60 | case LTTNG_DOMAIN_JUL: |
| 61 | name = loglevel_jul_value_to_name(loglevel); |
| 62 | break; |
| 63 | case LTTNG_DOMAIN_PYTHON: |
| 64 | name = loglevel_python_value_to_name(loglevel); |
| 65 | break; |
| 66 | default: |
| 67 | break; |
| 68 | } |
| 69 | |
| 70 | return name; |
| 71 | } |
| 72 | |
| 73 | static |
| 74 | void print_event_rule_tracepoint(const struct lttng_event_rule *event_rule) |
| 75 | { |
| 76 | enum lttng_event_rule_status event_rule_status; |
| 77 | enum lttng_domain_type domain_type; |
| 78 | const char *pattern; |
| 79 | const char *filter; |
| 80 | int log_level; |
| 81 | const struct lttng_log_level_rule *log_level_rule = NULL; |
| 82 | unsigned int exclusions_count; |
| 83 | int i; |
| 84 | |
| 85 | event_rule_status = lttng_event_rule_tracepoint_get_pattern( |
| 86 | event_rule, &pattern); |
| 87 | assert(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK); |
| 88 | |
| 89 | event_rule_status = lttng_event_rule_tracepoint_get_domain_type( |
| 90 | event_rule, &domain_type); |
| 91 | assert(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK); |
| 92 | |
| 93 | _MSG(" rule: %s (type: tracepoint, domain: %s", pattern, |
| 94 | lttng_domain_type_str(domain_type)); |
| 95 | |
| 96 | event_rule_status = lttng_event_rule_tracepoint_get_filter( |
| 97 | event_rule, &filter); |
| 98 | if (event_rule_status == LTTNG_EVENT_RULE_STATUS_OK) { |
| 99 | _MSG(", filter: %s", filter); |
| 100 | } else { |
| 101 | assert(event_rule_status == LTTNG_EVENT_RULE_STATUS_UNSET); |
| 102 | } |
| 103 | |
| 104 | event_rule_status = lttng_event_rule_tracepoint_get_log_level_rule( |
| 105 | event_rule, &log_level_rule); |
| 106 | if (event_rule_status == LTTNG_EVENT_RULE_STATUS_OK) { |
| 107 | enum lttng_log_level_rule_status llr_status; |
| 108 | const char *log_level_op; |
| 109 | const char *pretty_loglevel_name; |
| 110 | |
| 111 | switch (lttng_log_level_rule_get_type(log_level_rule)) { |
| 112 | case LTTNG_LOG_LEVEL_RULE_TYPE_EXACTLY: |
| 113 | log_level_op = "is"; |
| 114 | llr_status = lttng_log_level_rule_exactly_get_level( |
| 115 | log_level_rule, &log_level); |
| 116 | break; |
| 117 | case LTTNG_LOG_LEVEL_RULE_TYPE_AT_LEAST_AS_SEVERE_AS: |
| 118 | log_level_op = "at least"; |
| 119 | llr_status = lttng_log_level_rule_at_least_as_severe_as_get_level( |
| 120 | log_level_rule, &log_level); |
| 121 | break; |
| 122 | default: |
| 123 | abort(); |
| 124 | } |
| 125 | |
| 126 | assert(llr_status == LTTNG_LOG_LEVEL_RULE_STATUS_OK); |
| 127 | |
| 128 | pretty_loglevel_name = get_pretty_loglevel_name( |
| 129 | domain_type, log_level); |
| 130 | if (pretty_loglevel_name) { |
| 131 | _MSG(", log level %s %s", log_level_op, |
| 132 | pretty_loglevel_name); |
| 133 | } else { |
| 134 | _MSG(", log level %s %d", log_level_op, log_level); |
| 135 | } |
| 136 | } else { |
| 137 | assert(event_rule_status == LTTNG_EVENT_RULE_STATUS_UNSET); |
| 138 | } |
| 139 | |
| 140 | event_rule_status = lttng_event_rule_tracepoint_get_exclusions_count( |
| 141 | event_rule, &exclusions_count); |
| 142 | assert(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK); |
| 143 | if (exclusions_count > 0) { |
| 144 | _MSG(", exclusions: "); |
| 145 | for (i = 0; i < exclusions_count; i++) { |
| 146 | const char *exclusion; |
| 147 | |
| 148 | event_rule_status = lttng_event_rule_tracepoint_get_exclusion_at_index( |
| 149 | event_rule, i, &exclusion); |
| 150 | assert(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK); |
| 151 | |
| 152 | _MSG("%s%s", i > 0 ? "," : "", exclusion); |
| 153 | } |
| 154 | } |
| 155 | |
| 156 | MSG(")"); |
| 157 | } |
| 158 | |
| 159 | static void print_kernel_probe_location( |
| 160 | const struct lttng_kernel_probe_location *location) |
| 161 | { |
| 162 | enum lttng_kernel_probe_location_status status; |
| 163 | switch (lttng_kernel_probe_location_get_type(location)) { |
| 164 | case LTTNG_KERNEL_PROBE_LOCATION_TYPE_ADDRESS: |
| 165 | { |
| 166 | uint64_t address; |
| 167 | |
| 168 | status = lttng_kernel_probe_location_address_get_address( |
| 169 | location, &address); |
| 170 | if (status != LTTNG_KERNEL_PROBE_LOCATION_STATUS_OK) { |
| 171 | ERR("Getting kernel probe location address failed."); |
| 172 | goto end; |
| 173 | } |
| 174 | |
| 175 | _MSG("0x%" PRIx64, address); |
| 176 | |
| 177 | break; |
| 178 | } |
| 179 | case LTTNG_KERNEL_PROBE_LOCATION_TYPE_SYMBOL_OFFSET: |
| 180 | { |
| 181 | uint64_t offset; |
| 182 | const char *symbol_name; |
| 183 | |
| 184 | symbol_name = lttng_kernel_probe_location_symbol_get_name( |
| 185 | location); |
| 186 | if (!symbol_name) { |
| 187 | ERR("Getting kernel probe location symbol name failed."); |
| 188 | goto end; |
| 189 | } |
| 190 | |
| 191 | status = lttng_kernel_probe_location_symbol_get_offset( |
| 192 | location, &offset); |
| 193 | if (status != LTTNG_KERNEL_PROBE_LOCATION_STATUS_OK) { |
| 194 | ERR("Getting kernel probe location address failed."); |
| 195 | goto end; |
| 196 | } |
| 197 | |
| 198 | if (offset == 0) { |
| 199 | _MSG("%s", symbol_name); |
| 200 | } else { |
| 201 | _MSG("%s+0x%" PRIx64, symbol_name, offset); |
| 202 | } |
| 203 | |
| 204 | break; |
| 205 | } |
| 206 | default: |
| 207 | abort(); |
| 208 | }; |
| 209 | end: |
| 210 | return; |
| 211 | } |
| 212 | |
| 213 | static |
| 214 | void print_event_rule_kernel_probe(const struct lttng_event_rule *event_rule) |
| 215 | { |
| 216 | enum lttng_event_rule_status event_rule_status; |
| 217 | const char *name; |
| 218 | const struct lttng_kernel_probe_location *location; |
| 219 | |
| 220 | assert(lttng_event_rule_get_type(event_rule) == LTTNG_EVENT_RULE_TYPE_KERNEL_PROBE); |
| 221 | |
| 222 | event_rule_status = lttng_event_rule_kernel_probe_get_event_name(event_rule, &name); |
| 223 | if (event_rule_status != LTTNG_EVENT_RULE_STATUS_OK) { |
| 224 | ERR("Failed to get kprobe event rule's name."); |
| 225 | goto end; |
| 226 | } |
| 227 | |
| 228 | event_rule_status = lttng_event_rule_kernel_probe_get_location( |
| 229 | event_rule, &location); |
| 230 | if (event_rule_status != LTTNG_EVENT_RULE_STATUS_OK) { |
| 231 | ERR("Failed to get kprobe event rule's location."); |
| 232 | goto end; |
| 233 | } |
| 234 | |
| 235 | _MSG(" rule: %s (type: probe, location: ", name); |
| 236 | |
| 237 | print_kernel_probe_location(location); |
| 238 | |
| 239 | MSG(")"); |
| 240 | |
| 241 | end: |
| 242 | return; |
| 243 | } |
| 244 | |
| 245 | static |
| 246 | void print_event_rule_userspace_probe(const struct lttng_event_rule *event_rule) |
| 247 | { |
| 248 | enum lttng_event_rule_status event_rule_status; |
| 249 | const char *name; |
| 250 | const struct lttng_userspace_probe_location *location; |
| 251 | enum lttng_userspace_probe_location_type userspace_probe_location_type; |
| 252 | |
| 253 | assert(lttng_event_rule_get_type(event_rule) == LTTNG_EVENT_RULE_TYPE_USERSPACE_PROBE); |
| 254 | |
| 255 | event_rule_status = lttng_event_rule_userspace_probe_get_event_name( |
| 256 | event_rule, &name); |
| 257 | if (event_rule_status != LTTNG_EVENT_RULE_STATUS_OK) { |
| 258 | ERR("Failed to get uprobe event rule's name."); |
| 259 | goto end; |
| 260 | } |
| 261 | |
| 262 | event_rule_status = lttng_event_rule_userspace_probe_get_location( |
| 263 | event_rule, &location); |
| 264 | if (event_rule_status != LTTNG_EVENT_RULE_STATUS_OK) { |
| 265 | ERR("Failed to get uprobe event rule's location."); |
| 266 | goto end; |
| 267 | } |
| 268 | |
| 269 | _MSG(" rule: %s (type: userspace probe, location: ", name); |
| 270 | |
| 271 | userspace_probe_location_type = |
| 272 | lttng_userspace_probe_location_get_type(location); |
| 273 | |
| 274 | switch (userspace_probe_location_type) { |
| 275 | case LTTNG_USERSPACE_PROBE_LOCATION_TYPE_FUNCTION: |
| 276 | { |
| 277 | const char *binary_path, *function_name; |
| 278 | |
| 279 | binary_path = lttng_userspace_probe_location_function_get_binary_path( |
| 280 | location); |
| 281 | function_name = lttng_userspace_probe_location_function_get_function_name( |
| 282 | location); |
| 283 | |
| 284 | _MSG("%s:%s", binary_path, function_name); |
| 285 | break; |
| 286 | } |
| 287 | case LTTNG_USERSPACE_PROBE_LOCATION_TYPE_TRACEPOINT: |
| 288 | _MSG("SDT not implemented yet"); |
| 289 | break; |
| 290 | default: |
| 291 | abort(); |
| 292 | } |
| 293 | |
| 294 | MSG(")"); |
| 295 | |
| 296 | end: |
| 297 | return; |
| 298 | } |
| 299 | |
| 300 | static |
| 301 | void print_event_rule_syscall(const struct lttng_event_rule *event_rule) |
| 302 | { |
| 303 | const char *pattern, *filter; |
| 304 | enum lttng_event_rule_status event_rule_status; |
| 305 | |
| 306 | assert(lttng_event_rule_get_type(event_rule) == LTTNG_EVENT_RULE_TYPE_SYSCALL); |
| 307 | |
| 308 | event_rule_status = lttng_event_rule_syscall_get_pattern( |
| 309 | event_rule, &pattern); |
| 310 | assert(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK); |
| 311 | |
| 312 | _MSG(" rule: %s (type: syscall", pattern); |
| 313 | |
| 314 | event_rule_status = lttng_event_rule_syscall_get_filter( |
| 315 | event_rule, &filter); |
| 316 | if (event_rule_status == LTTNG_EVENT_RULE_STATUS_OK) { |
| 317 | _MSG(", filter: %s", filter); |
| 318 | } else { |
| 319 | assert(event_rule_status == LTTNG_EVENT_RULE_STATUS_UNSET); |
| 320 | } |
| 321 | |
| 322 | MSG(")"); |
| 323 | } |
| 324 | |
| 325 | static |
| 326 | void print_event_rule(const struct lttng_event_rule *event_rule) |
| 327 | { |
| 328 | const enum lttng_event_rule_type event_rule_type = |
| 329 | lttng_event_rule_get_type(event_rule); |
| 330 | |
| 331 | switch (event_rule_type) { |
| 332 | case LTTNG_EVENT_RULE_TYPE_TRACEPOINT: |
| 333 | print_event_rule_tracepoint(event_rule); |
| 334 | break; |
| 335 | case LTTNG_EVENT_RULE_TYPE_KERNEL_PROBE: |
| 336 | print_event_rule_kernel_probe(event_rule); |
| 337 | break; |
| 338 | case LTTNG_EVENT_RULE_TYPE_USERSPACE_PROBE: |
| 339 | print_event_rule_userspace_probe(event_rule); |
| 340 | break; |
| 341 | case LTTNG_EVENT_RULE_TYPE_SYSCALL: |
| 342 | print_event_rule_syscall(event_rule); |
| 343 | break; |
| 344 | default: |
| 345 | abort(); |
| 346 | } |
| 347 | } |
| 348 | |
| 349 | static |
| 350 | void print_one_event_expr(const struct lttng_event_expr *event_expr) |
| 351 | { |
| 352 | enum lttng_event_expr_type type; |
| 353 | |
| 354 | type = lttng_event_expr_get_type(event_expr); |
| 355 | |
| 356 | switch (type) { |
| 357 | case LTTNG_EVENT_EXPR_TYPE_EVENT_PAYLOAD_FIELD: |
| 358 | { |
| 359 | const char *name; |
| 360 | |
| 361 | name = lttng_event_expr_event_payload_field_get_name( |
| 362 | event_expr); |
| 363 | _MSG("%s", name); |
| 364 | |
| 365 | break; |
| 366 | } |
| 367 | case LTTNG_EVENT_EXPR_TYPE_CHANNEL_CONTEXT_FIELD: |
| 368 | { |
| 369 | const char *name; |
| 370 | |
| 371 | name = lttng_event_expr_channel_context_field_get_name( |
| 372 | event_expr); |
| 373 | _MSG("$ctx.%s", name); |
| 374 | |
| 375 | break; |
| 376 | } |
| 377 | case LTTNG_EVENT_EXPR_TYPE_APP_SPECIFIC_CONTEXT_FIELD: |
| 378 | { |
| 379 | const char *provider_name; |
| 380 | const char *type_name; |
| 381 | |
| 382 | provider_name = lttng_event_expr_app_specific_context_field_get_provider_name( |
| 383 | event_expr); |
| 384 | type_name = lttng_event_expr_app_specific_context_field_get_type_name( |
| 385 | event_expr); |
| 386 | |
| 387 | _MSG("$app.%s:%s", provider_name, type_name); |
| 388 | |
| 389 | break; |
| 390 | } |
| 391 | case LTTNG_EVENT_EXPR_TYPE_ARRAY_FIELD_ELEMENT: |
| 392 | { |
| 393 | unsigned int index; |
| 394 | const struct lttng_event_expr *parent_expr; |
| 395 | enum lttng_event_expr_status status; |
| 396 | |
| 397 | parent_expr = lttng_event_expr_array_field_element_get_parent_expr( |
| 398 | event_expr); |
| 399 | assert(parent_expr != NULL); |
| 400 | |
| 401 | print_one_event_expr(parent_expr); |
| 402 | |
| 403 | status = lttng_event_expr_array_field_element_get_index( |
| 404 | event_expr, &index); |
| 405 | assert(status == LTTNG_EVENT_EXPR_STATUS_OK); |
| 406 | |
| 407 | _MSG("[%u]", index); |
| 408 | |
| 409 | break; |
| 410 | } |
| 411 | default: |
| 412 | abort(); |
| 413 | } |
| 414 | } |
| 415 | |
| 416 | static |
| 417 | void print_condition_on_event(const struct lttng_condition *condition) |
| 418 | { |
| 419 | const struct lttng_event_rule *event_rule; |
| 420 | enum lttng_condition_status condition_status; |
| 421 | unsigned int cap_desc_count, i; |
| 422 | |
| 423 | condition_status = |
| 424 | lttng_condition_on_event_get_rule(condition, &event_rule); |
| 425 | assert(condition_status == LTTNG_CONDITION_STATUS_OK); |
| 426 | |
| 427 | print_event_rule(event_rule); |
| 428 | |
| 429 | condition_status = |
| 430 | lttng_condition_on_event_get_capture_descriptor_count( |
| 431 | condition, &cap_desc_count); |
| 432 | assert(condition_status == LTTNG_CONDITION_STATUS_OK); |
| 433 | |
| 434 | if (cap_desc_count > 0) { |
| 435 | MSG(" captures:"); |
| 436 | |
| 437 | for (i = 0; i < cap_desc_count; i++) { |
| 438 | const struct lttng_event_expr *cap_desc = |
| 439 | lttng_condition_on_event_get_capture_descriptor_at_index( |
| 440 | condition, i); |
| 441 | |
| 442 | _MSG(" - "); |
| 443 | print_one_event_expr(cap_desc); |
| 444 | MSG(""); |
| 445 | } |
| 446 | } |
| 447 | } |
| 448 | |
| 449 | static |
| 450 | void print_action_errors(const struct lttng_trigger *trigger, |
| 451 | const struct lttng_action *action) |
| 452 | { |
| 453 | unsigned int i, count, printed_errors_count = 0; |
| 454 | enum lttng_error_code error_query_ret; |
| 455 | enum lttng_error_query_results_status results_status; |
| 456 | struct lttng_error_query_results *results = NULL; |
| 457 | const char *trigger_name; |
| 458 | uid_t trigger_uid; |
| 459 | enum lttng_trigger_status trigger_status; |
| 460 | struct lttng_error_query *query = |
| 461 | lttng_error_query_action_create(trigger, action); |
| 462 | |
| 463 | assert(query); |
| 464 | |
| 465 | trigger_status = lttng_trigger_get_name(trigger, &trigger_name); |
| 466 | assert(trigger_status == LTTNG_TRIGGER_STATUS_OK); |
| 467 | |
| 468 | trigger_status = lttng_trigger_get_owner_uid(trigger, &trigger_uid); |
| 469 | assert(trigger_status == LTTNG_TRIGGER_STATUS_OK); |
| 470 | |
| 471 | error_query_ret = lttng_error_query_execute( |
| 472 | query, lttng_session_daemon_command_endpoint, &results); |
| 473 | if (error_query_ret != LTTNG_OK) { |
| 474 | ERR("Failed to query errors of trigger '%s' (owner uid: %d): %s", |
| 475 | trigger_name, (int) trigger_uid, |
| 476 | lttng_strerror(-error_query_ret)); |
| 477 | goto end; |
| 478 | } |
| 479 | |
| 480 | results_status = lttng_error_query_results_get_count(results, &count); |
| 481 | assert(results_status == LTTNG_ERROR_QUERY_RESULTS_STATUS_OK); |
| 482 | |
| 483 | _MSG(" errors:"); |
| 484 | |
| 485 | for (i = 0; i < count; i++) { |
| 486 | const struct lttng_error_query_result *result; |
| 487 | enum lttng_error_query_result_status result_status; |
| 488 | const char *result_name; |
| 489 | const char *result_description; |
| 490 | uint64_t result_value; |
| 491 | |
| 492 | results_status = lttng_error_query_results_get_result( |
| 493 | results, &result, i); |
| 494 | assert(results_status == LTTNG_ERROR_QUERY_RESULTS_STATUS_OK); |
| 495 | |
| 496 | result_status = lttng_error_query_result_get_name( |
| 497 | result, &result_name); |
| 498 | assert(result_status == LTTNG_ERROR_QUERY_RESULT_STATUS_OK); |
| 499 | result_status = lttng_error_query_result_get_description( |
| 500 | result, &result_description); |
| 501 | assert(result_status == LTTNG_ERROR_QUERY_RESULT_STATUS_OK); |
| 502 | |
| 503 | if (lttng_error_query_result_get_type(result) == |
| 504 | LTTNG_ERROR_QUERY_RESULT_TYPE_COUNTER) { |
| 505 | result_status = lttng_error_query_result_counter_get_value( |
| 506 | result, &result_value); |
| 507 | assert(result_status == |
| 508 | LTTNG_ERROR_QUERY_RESULT_STATUS_OK); |
| 509 | if (result_value == 0) { |
| 510 | continue; |
| 511 | } |
| 512 | |
| 513 | MSG(""); |
| 514 | _MSG(" %s: %" PRIu64, result_name, |
| 515 | result_value); |
| 516 | printed_errors_count++; |
| 517 | } else { |
| 518 | _MSG(" Unknown error query result type for result '%s' (%s)", |
| 519 | result_name, result_description); |
| 520 | continue; |
| 521 | } |
| 522 | } |
| 523 | |
| 524 | if (printed_errors_count == 0) { |
| 525 | _MSG(" none"); |
| 526 | } |
| 527 | |
| 528 | end: |
| 529 | MSG(""); |
| 530 | lttng_error_query_destroy(query); |
| 531 | lttng_error_query_results_destroy(results); |
| 532 | } |
| 533 | |
| 534 | static |
| 535 | void print_one_action(const struct lttng_trigger *trigger, |
| 536 | const struct lttng_action *action) |
| 537 | { |
| 538 | enum lttng_action_type action_type; |
| 539 | enum lttng_action_status action_status; |
| 540 | const struct lttng_rate_policy *policy = NULL; |
| 541 | const char *value; |
| 542 | |
| 543 | action_type = lttng_action_get_type(action); |
| 544 | assert(action_type != LTTNG_ACTION_TYPE_GROUP); |
| 545 | |
| 546 | switch (action_type) { |
| 547 | case LTTNG_ACTION_TYPE_NOTIFY: |
| 548 | _MSG("notify"); |
| 549 | |
| 550 | action_status = lttng_action_notify_get_rate_policy( |
| 551 | action, &policy); |
| 552 | if (action_status != LTTNG_ACTION_STATUS_OK) { |
| 553 | ERR("Failed to retrieve rate policy."); |
| 554 | goto end; |
| 555 | } |
| 556 | break; |
| 557 | case LTTNG_ACTION_TYPE_START_SESSION: |
| 558 | action_status = lttng_action_start_session_get_session_name( |
| 559 | action, &value); |
| 560 | assert(action_status == LTTNG_ACTION_STATUS_OK); |
| 561 | _MSG("start session `%s`", value); |
| 562 | |
| 563 | action_status = lttng_action_start_session_get_rate_policy( |
| 564 | action, &policy); |
| 565 | if (action_status != LTTNG_ACTION_STATUS_OK) { |
| 566 | ERR("Failed to retrieve rate policy."); |
| 567 | goto end; |
| 568 | } |
| 569 | break; |
| 570 | case LTTNG_ACTION_TYPE_STOP_SESSION: |
| 571 | action_status = lttng_action_stop_session_get_session_name( |
| 572 | action, &value); |
| 573 | assert(action_status == LTTNG_ACTION_STATUS_OK); |
| 574 | _MSG("stop session `%s`", value); |
| 575 | |
| 576 | action_status = lttng_action_stop_session_get_rate_policy( |
| 577 | action, &policy); |
| 578 | if (action_status != LTTNG_ACTION_STATUS_OK) { |
| 579 | ERR("Failed to retrieve rate policy."); |
| 580 | goto end; |
| 581 | } |
| 582 | break; |
| 583 | case LTTNG_ACTION_TYPE_ROTATE_SESSION: |
| 584 | action_status = lttng_action_rotate_session_get_session_name( |
| 585 | action, &value); |
| 586 | assert(action_status == LTTNG_ACTION_STATUS_OK); |
| 587 | _MSG("rotate session `%s`", value); |
| 588 | |
| 589 | action_status = lttng_action_rotate_session_get_rate_policy( |
| 590 | action, &policy); |
| 591 | if (action_status != LTTNG_ACTION_STATUS_OK) { |
| 592 | ERR("Failed to retrieve rate policy."); |
| 593 | goto end; |
| 594 | } |
| 595 | break; |
| 596 | case LTTNG_ACTION_TYPE_SNAPSHOT_SESSION: |
| 597 | { |
| 598 | const struct lttng_snapshot_output *output; |
| 599 | |
| 600 | action_status = lttng_action_snapshot_session_get_session_name( |
| 601 | action, &value); |
| 602 | assert(action_status == LTTNG_ACTION_STATUS_OK); |
| 603 | _MSG("snapshot session `%s`", value); |
| 604 | |
| 605 | action_status = lttng_action_snapshot_session_get_output( |
| 606 | action, &output); |
| 607 | if (action_status == LTTNG_ACTION_STATUS_OK) { |
| 608 | const char *name; |
| 609 | uint64_t max_size; |
| 610 | const char *ctrl_url, *data_url; |
| 611 | bool starts_with_file, starts_with_net, starts_with_net6; |
| 612 | |
| 613 | ctrl_url = lttng_snapshot_output_get_ctrl_url(output); |
| 614 | assert(ctrl_url && strlen(ctrl_url) > 0); |
| 615 | |
| 616 | data_url = lttng_snapshot_output_get_data_url(output); |
| 617 | assert(data_url); |
| 618 | |
| 619 | starts_with_file = strncmp(ctrl_url, "file://", strlen("file://")) == 0; |
| 620 | starts_with_net = strncmp(ctrl_url, "net://", strlen("net://")) == 0; |
| 621 | starts_with_net6 = strncmp(ctrl_url, "net6://", strlen("net6://")) == 0; |
| 622 | |
| 623 | if (ctrl_url[0] == '/' || starts_with_file) { |
| 624 | if (starts_with_file) { |
| 625 | ctrl_url += strlen("file://"); |
| 626 | } |
| 627 | |
| 628 | _MSG(", path: %s", ctrl_url); |
| 629 | } else if (starts_with_net || starts_with_net6) { |
| 630 | _MSG(", url: %s", ctrl_url); |
| 631 | } else { |
| 632 | assert(strlen(data_url) > 0); |
| 633 | |
| 634 | _MSG(", control url: %s, data url: %s", ctrl_url, data_url); |
| 635 | } |
| 636 | |
| 637 | name = lttng_snapshot_output_get_name(output); |
| 638 | assert(name); |
| 639 | if (strlen(name) > 0) { |
| 640 | _MSG(", name: %s", name); |
| 641 | } |
| 642 | |
| 643 | max_size = lttng_snapshot_output_get_maxsize(output); |
| 644 | if (max_size != -1ULL) { |
| 645 | _MSG(", max size: %" PRIu64, max_size); |
| 646 | } |
| 647 | } |
| 648 | |
| 649 | action_status = lttng_action_snapshot_session_get_rate_policy( |
| 650 | action, &policy); |
| 651 | if (action_status != LTTNG_ACTION_STATUS_OK) { |
| 652 | ERR("Failed to retrieve rate policy."); |
| 653 | goto end; |
| 654 | } |
| 655 | break; |
| 656 | } |
| 657 | default: |
| 658 | abort(); |
| 659 | } |
| 660 | |
| 661 | if (policy) { |
| 662 | enum lttng_rate_policy_type policy_type; |
| 663 | enum lttng_rate_policy_status policy_status; |
| 664 | uint64_t policy_value = 0; |
| 665 | |
| 666 | policy_type = lttng_rate_policy_get_type(policy); |
| 667 | |
| 668 | switch (policy_type) { |
| 669 | case LTTNG_RATE_POLICY_TYPE_EVERY_N: |
| 670 | policy_status = lttng_rate_policy_every_n_get_interval( |
| 671 | policy, &policy_value); |
| 672 | if (policy_status != LTTNG_RATE_POLICY_STATUS_OK) { |
| 673 | ERR("Failed to get action rate policy interval"); |
| 674 | goto end; |
| 675 | } |
| 676 | if (policy_value > 1) { |
| 677 | /* The default is 1 so print only when it is a |
| 678 | * special case. |
| 679 | */ |
| 680 | _MSG(", rate policy: after every %" PRIu64 |
| 681 | " occurrences", |
| 682 | policy_value); |
| 683 | } |
| 684 | break; |
| 685 | case LTTNG_RATE_POLICY_TYPE_ONCE_AFTER_N: |
| 686 | policy_status = lttng_rate_policy_once_after_n_get_threshold( |
| 687 | policy, &policy_value); |
| 688 | if (policy_status != LTTNG_RATE_POLICY_STATUS_OK) { |
| 689 | ERR("Failed to get action rate policy interval"); |
| 690 | goto end; |
| 691 | } |
| 692 | _MSG(", rate policy: once after %" PRIu64 |
| 693 | " occurrences", |
| 694 | policy_value); |
| 695 | break; |
| 696 | default: |
| 697 | abort(); |
| 698 | } |
| 699 | } |
| 700 | |
| 701 | MSG(""); |
| 702 | print_action_errors(trigger, action); |
| 703 | |
| 704 | end: |
| 705 | return; |
| 706 | } |
| 707 | |
| 708 | static |
| 709 | void print_trigger_errors(const struct lttng_trigger *trigger) |
| 710 | { |
| 711 | unsigned int i, count, printed_errors_count = 0; |
| 712 | enum lttng_error_code error_query_ret; |
| 713 | enum lttng_error_query_results_status results_status; |
| 714 | struct lttng_error_query_results *results = NULL; |
| 715 | enum lttng_trigger_status trigger_status; |
| 716 | const char *trigger_name; |
| 717 | uid_t trigger_uid; |
| 718 | struct lttng_error_query *query = |
| 719 | lttng_error_query_trigger_create(trigger); |
| 720 | |
| 721 | assert(query); |
| 722 | |
| 723 | trigger_status = lttng_trigger_get_name(trigger, &trigger_name); |
| 724 | assert(trigger_status == LTTNG_TRIGGER_STATUS_OK); |
| 725 | |
| 726 | trigger_status = lttng_trigger_get_owner_uid(trigger, &trigger_uid); |
| 727 | assert(trigger_status == LTTNG_TRIGGER_STATUS_OK); |
| 728 | |
| 729 | error_query_ret = lttng_error_query_execute( |
| 730 | query, lttng_session_daemon_command_endpoint, &results); |
| 731 | if (error_query_ret != LTTNG_OK) { |
| 732 | ERR("Failed to query errors of trigger '%s' (owner uid: %d): %s", |
| 733 | trigger_name, (int) trigger_uid, |
| 734 | lttng_strerror(-error_query_ret)); |
| 735 | goto end; |
| 736 | } |
| 737 | |
| 738 | results_status = lttng_error_query_results_get_count(results, &count); |
| 739 | assert(results_status == LTTNG_ERROR_QUERY_RESULTS_STATUS_OK); |
| 740 | |
| 741 | _MSG(" errors:"); |
| 742 | |
| 743 | for (i = 0; i < count; i++) { |
| 744 | const struct lttng_error_query_result *result; |
| 745 | enum lttng_error_query_result_status result_status; |
| 746 | const char *result_name; |
| 747 | const char *result_description; |
| 748 | uint64_t result_value; |
| 749 | |
| 750 | results_status = lttng_error_query_results_get_result( |
| 751 | results, &result, i); |
| 752 | assert(results_status == LTTNG_ERROR_QUERY_RESULTS_STATUS_OK); |
| 753 | |
| 754 | result_status = lttng_error_query_result_get_name( |
| 755 | result, &result_name); |
| 756 | assert(result_status == LTTNG_ERROR_QUERY_RESULT_STATUS_OK); |
| 757 | result_status = lttng_error_query_result_get_description( |
| 758 | result, &result_description); |
| 759 | assert(result_status == LTTNG_ERROR_QUERY_RESULT_STATUS_OK); |
| 760 | |
| 761 | if (lttng_error_query_result_get_type(result) == |
| 762 | LTTNG_ERROR_QUERY_RESULT_TYPE_COUNTER) { |
| 763 | result_status = lttng_error_query_result_counter_get_value( |
| 764 | result, &result_value); |
| 765 | assert(result_status == |
| 766 | LTTNG_ERROR_QUERY_RESULT_STATUS_OK); |
| 767 | if (result_value == 0) { |
| 768 | continue; |
| 769 | } |
| 770 | |
| 771 | MSG(""); |
| 772 | _MSG(" %s: %" PRIu64, result_name, |
| 773 | result_value); |
| 774 | printed_errors_count++; |
| 775 | } else { |
| 776 | _MSG(" Unknown error query result type for result '%s' (%s)", |
| 777 | result_name, result_description); |
| 778 | continue; |
| 779 | } |
| 780 | } |
| 781 | |
| 782 | if (printed_errors_count == 0) { |
| 783 | _MSG(" none"); |
| 784 | } |
| 785 | |
| 786 | end: |
| 787 | MSG(""); |
| 788 | lttng_error_query_destroy(query); |
| 789 | lttng_error_query_results_destroy(results); |
| 790 | } |
| 791 | |
| 792 | static |
| 793 | void print_one_trigger(const struct lttng_trigger *trigger) |
| 794 | { |
| 795 | const struct lttng_condition *condition; |
| 796 | enum lttng_condition_type condition_type; |
| 797 | const struct lttng_action *action; |
| 798 | enum lttng_action_type action_type; |
| 799 | enum lttng_trigger_status trigger_status; |
| 800 | const char *name; |
| 801 | uid_t trigger_uid; |
| 802 | |
| 803 | trigger_status = lttng_trigger_get_name(trigger, &name); |
| 804 | assert(trigger_status == LTTNG_TRIGGER_STATUS_OK); |
| 805 | |
| 806 | trigger_status = lttng_trigger_get_owner_uid(trigger, &trigger_uid); |
| 807 | assert(trigger_status == LTTNG_TRIGGER_STATUS_OK); |
| 808 | |
| 809 | MSG("- id: %s", name); |
| 810 | MSG(" user id: %d", trigger_uid); |
| 811 | |
| 812 | condition = lttng_trigger_get_const_condition(trigger); |
| 813 | condition_type = lttng_condition_get_type(condition); |
| 814 | MSG(" condition: %s", lttng_condition_type_str(condition_type)); |
| 815 | switch (condition_type) { |
| 816 | case LTTNG_CONDITION_TYPE_ON_EVENT: |
| 817 | print_condition_on_event(condition); |
| 818 | break; |
| 819 | default: |
| 820 | MSG(" (condition type not handled in %s)", __func__); |
| 821 | break; |
| 822 | } |
| 823 | |
| 824 | action = lttng_trigger_get_const_action(trigger); |
| 825 | action_type = lttng_action_get_type(action); |
| 826 | if (action_type == LTTNG_ACTION_TYPE_GROUP) { |
| 827 | unsigned int count, i; |
| 828 | enum lttng_action_status action_status; |
| 829 | |
| 830 | MSG(" actions:"); |
| 831 | |
| 832 | action_status = lttng_action_group_get_count(action, &count); |
| 833 | assert(action_status == LTTNG_ACTION_STATUS_OK); |
| 834 | |
| 835 | for (i = 0; i < count; i++) { |
| 836 | const struct lttng_action *subaction = |
| 837 | lttng_action_group_get_at_index( |
| 838 | action, i); |
| 839 | |
| 840 | _MSG(" "); |
| 841 | print_one_action(trigger, subaction); |
| 842 | } |
| 843 | } else { |
| 844 | _MSG(" action:"); |
| 845 | print_one_action(trigger, action); |
| 846 | } |
| 847 | |
| 848 | print_trigger_errors(trigger); |
| 849 | } |
| 850 | |
| 851 | static |
| 852 | int compare_triggers_by_name(const void *a, const void *b) |
| 853 | { |
| 854 | const struct lttng_trigger *trigger_a = *((const struct lttng_trigger **) a); |
| 855 | const struct lttng_trigger *trigger_b = *((const struct lttng_trigger **) b); |
| 856 | const char *name_a, *name_b; |
| 857 | enum lttng_trigger_status trigger_status; |
| 858 | |
| 859 | trigger_status = lttng_trigger_get_name(trigger_a, &name_a); |
| 860 | assert(trigger_status == LTTNG_TRIGGER_STATUS_OK); |
| 861 | |
| 862 | trigger_status = lttng_trigger_get_name(trigger_b, &name_b); |
| 863 | assert(trigger_status == LTTNG_TRIGGER_STATUS_OK); |
| 864 | |
| 865 | return strcmp(name_a, name_b); |
| 866 | } |
| 867 | |
| 868 | int cmd_list_triggers(int argc, const char **argv) |
| 869 | { |
| 870 | int ret; |
| 871 | struct argpar_parse_ret argpar_parse_ret = {}; |
| 872 | struct lttng_triggers *triggers = NULL; |
| 873 | int i; |
| 874 | struct lttng_dynamic_pointer_array sorted_triggers; |
| 875 | enum lttng_trigger_status trigger_status; |
| 876 | unsigned int num_triggers; |
| 877 | |
| 878 | lttng_dynamic_pointer_array_init(&sorted_triggers, NULL); |
| 879 | |
| 880 | argpar_parse_ret = argpar_parse( |
| 881 | argc - 1, argv + 1, list_trigger_options, true); |
| 882 | if (!argpar_parse_ret.items) { |
| 883 | ERR("%s", argpar_parse_ret.error); |
| 884 | goto error; |
| 885 | } |
| 886 | |
| 887 | for (i = 0; i < argpar_parse_ret.items->n_items; i++) { |
| 888 | const struct argpar_item *item = |
| 889 | argpar_parse_ret.items->items[i]; |
| 890 | |
| 891 | if (item->type == ARGPAR_ITEM_TYPE_OPT) { |
| 892 | const struct argpar_item_opt *item_opt = |
| 893 | (const struct argpar_item_opt *) item; |
| 894 | |
| 895 | switch (item_opt->descr->id) { |
| 896 | case OPT_HELP: |
| 897 | SHOW_HELP(); |
| 898 | ret = 0; |
| 899 | goto end; |
| 900 | |
| 901 | case OPT_LIST_OPTIONS: |
| 902 | list_cmd_options_argpar(stdout, |
| 903 | list_trigger_options); |
| 904 | ret = 0; |
| 905 | goto end; |
| 906 | |
| 907 | default: |
| 908 | abort(); |
| 909 | } |
| 910 | |
| 911 | } else { |
| 912 | const struct argpar_item_non_opt *item_non_opt = |
| 913 | (const struct argpar_item_non_opt *) item; |
| 914 | |
| 915 | ERR("Unexpected argument: %s", item_non_opt->arg); |
| 916 | } |
| 917 | } |
| 918 | |
| 919 | ret = lttng_list_triggers(&triggers); |
| 920 | if (ret != LTTNG_OK) { |
| 921 | ERR("Error listing triggers: %s.", lttng_strerror(-ret)); |
| 922 | goto error; |
| 923 | } |
| 924 | |
| 925 | trigger_status = lttng_triggers_get_count(triggers, &num_triggers); |
| 926 | if (trigger_status != LTTNG_TRIGGER_STATUS_OK) { |
| 927 | ERR("Failed to get trigger count."); |
| 928 | goto error; |
| 929 | } |
| 930 | |
| 931 | for (i = 0; i < num_triggers; i++) { |
| 932 | const int add_ret = lttng_dynamic_pointer_array_add_pointer( |
| 933 | &sorted_triggers, |
| 934 | (void *) lttng_triggers_get_at_index(triggers, i)); |
| 935 | |
| 936 | if (add_ret) { |
| 937 | ERR("Failed to allocate array of struct lttng_trigger *."); |
| 938 | goto error; |
| 939 | } |
| 940 | } |
| 941 | |
| 942 | qsort(sorted_triggers.array.buffer.data, num_triggers, |
| 943 | sizeof(struct lttng_trigger *), |
| 944 | compare_triggers_by_name); |
| 945 | |
| 946 | for (i = 0; i < num_triggers; i++) { |
| 947 | const struct lttng_trigger *trigger_to_print = |
| 948 | (const struct lttng_trigger *) |
| 949 | lttng_dynamic_pointer_array_get_pointer( |
| 950 | &sorted_triggers, i); |
| 951 | |
| 952 | print_one_trigger(trigger_to_print); |
| 953 | } |
| 954 | |
| 955 | ret = 0; |
| 956 | goto end; |
| 957 | |
| 958 | error: |
| 959 | ret = 1; |
| 960 | |
| 961 | end: |
| 962 | argpar_parse_ret_fini(&argpar_parse_ret); |
| 963 | lttng_triggers_destroy(triggers); |
| 964 | lttng_dynamic_pointer_array_reset(&sorted_triggers); |
| 965 | |
| 966 | return ret; |
| 967 | } |