| 1 | // SPDX-License-Identifier: GPL-3.0-or-later |
| 2 | |
| 3 | #include "ebpf.h" |
| 4 | #include "ebpf_mount.h" |
| 5 | #include "libbpf_api/ebpf_library.h" |
| 6 | |
| 7 | static ebpf_local_maps_t mount_maps[] = { |
| 8 | {.name = "tbl_mount", |
| 9 | .internal_input = NETDATA_MOUNT_END, |
| 10 | .user_input = 0, |
| 11 | .type = NETDATA_EBPF_MAP_STATIC, |
| 12 | .map_fd = ND_EBPF_MAP_FD_NOT_INITIALIZED, |
| 13 | #ifdef LIBBPF_MAJOR_VERSION |
| 14 | .map_type = BPF_MAP_TYPE_PERCPU_ARRAY |
| 15 | #endif |
| 16 | }, |
| 17 | {.name = NULL, |
| 18 | .internal_input = 0, |
| 19 | .user_input = 0, |
| 20 | .type = NETDATA_EBPF_MAP_CONTROLLER, |
| 21 | .map_fd = ND_EBPF_MAP_FD_NOT_INITIALIZED, |
| 22 | #ifdef LIBBPF_MAJOR_VERSION |
| 23 | .map_type = BPF_MAP_TYPE_PERCPU_ARRAY |
| 24 | #endif |
| 25 | }}; |
| 26 | |
| 27 | static char *mount_dimension_name[NETDATA_EBPF_MOUNT_SYSCALL] = {"mount", "umount"}; |
| 28 | static netdata_syscall_stat_t mount_aggregated_data[NETDATA_EBPF_MOUNT_SYSCALL]; |
| 29 | static netdata_publish_syscall_t mount_publish_aggregated[NETDATA_EBPF_MOUNT_SYSCALL]; |
| 30 | |
| 31 | struct config mount_config = APPCONFIG_INITIALIZER; |
| 32 | |
| 33 | static netdata_idx_t mount_hash_values[NETDATA_MOUNT_END]; |
| 34 | |
| 35 | netdata_ebpf_targets_t mount_targets[] = { |
| 36 | {.name = "mount", .mode = EBPF_LOAD_TRAMPOLINE}, |
| 37 | {.name = "umount", .mode = EBPF_LOAD_TRAMPOLINE}, |
| 38 | {.name = NULL, .mode = EBPF_LOAD_TRAMPOLINE}}; |
| 39 | |
| 40 | #ifdef LIBBPF_MAJOR_VERSION |
| 41 | /***************************************************************** |
| 42 | * |
| 43 | * BTF FUNCTIONS |
| 44 | * |
| 45 | *****************************************************************/ |
| 46 | |
| 47 | /* |
| 48 | * Disable probe |
| 49 | * |
| 50 | * Disable all probes to use exclusively another method. |
| 51 | * |
| 52 | * @param obj is the main structure for bpf objects. |
| 53 | */ |
| 54 | static inline void ebpf_mount_disable_probe(struct mount_bpf *obj) |
| 55 | { |
| 56 | bpf_program__set_autoload(obj->progs.netdata_mount_probe, false); |
| 57 | bpf_program__set_autoload(obj->progs.netdata_umount_probe, false); |
| 58 | |
| 59 | bpf_program__set_autoload(obj->progs.netdata_mount_retprobe, false); |
| 60 | bpf_program__set_autoload(obj->progs.netdata_umount_retprobe, false); |
| 61 | } |
| 62 | |
| 63 | /* |
| 64 | * Disable tracepoint |
| 65 | * |
| 66 | * Disable all tracepoints to use exclusively another method. |
| 67 | * |
| 68 | * @param obj is the main structure for bpf objects. |
| 69 | */ |
| 70 | static inline void ebpf_mount_disable_tracepoint(struct mount_bpf *obj) |
| 71 | { |
| 72 | bpf_program__set_autoload(obj->progs.netdata_mount_exit, false); |
| 73 | bpf_program__set_autoload(obj->progs.netdata_umount_exit, false); |
| 74 | } |
| 75 | |
| 76 | /* |
| 77 | * Disable trampoline |
| 78 | * |
| 79 | * Disable all trampoline to use exclusively another method. |
| 80 | * |
| 81 | * @param obj is the main structure for bpf objects. |
| 82 | */ |
| 83 | static inline void ebpf_mount_disable_trampoline(struct mount_bpf *obj) |
| 84 | { |
| 85 | bpf_program__set_autoload(obj->progs.netdata_mount_fentry, false); |
| 86 | bpf_program__set_autoload(obj->progs.netdata_umount_fentry, false); |
| 87 | bpf_program__set_autoload(obj->progs.netdata_mount_fexit, false); |
| 88 | bpf_program__set_autoload(obj->progs.netdata_umount_fexit, false); |
| 89 | } |
| 90 | |
| 91 | /** |
| 92 | * Set trampoline target |
| 93 | * |
| 94 | * Set the targets we will monitor. |
| 95 | * |
| 96 | * @param obj is the main structure for bpf objects. |
| 97 | */ |
| 98 | static inline void netdata_set_trampoline_target(struct mount_bpf *obj) |
| 99 | { |
| 100 | char syscall[NETDATA_EBPF_MAX_SYSCALL_LENGTH + 1]; |
| 101 | ebpf_select_host_prefix( |
| 102 | syscall, NETDATA_EBPF_MAX_SYSCALL_LENGTH, mount_targets[NETDATA_MOUNT_SYSCALL].name, running_on_kernel); |
| 103 | |
| 104 | bpf_program__set_attach_target(obj->progs.netdata_mount_fentry, 0, syscall); |
| 105 | |
| 106 | bpf_program__set_attach_target(obj->progs.netdata_mount_fexit, 0, syscall); |
| 107 | |
| 108 | ebpf_select_host_prefix( |
| 109 | syscall, NETDATA_EBPF_MAX_SYSCALL_LENGTH, mount_targets[NETDATA_UMOUNT_SYSCALL].name, running_on_kernel); |
| 110 | |
| 111 | bpf_program__set_attach_target(obj->progs.netdata_umount_fentry, 0, syscall); |
| 112 | |
| 113 | bpf_program__set_attach_target(obj->progs.netdata_umount_fexit, 0, syscall); |
| 114 | } |
| 115 | |
| 116 | /** |
| 117 | * Mount Attach Probe |
| 118 | * |
| 119 | * Attach probes to target |
| 120 | * |
| 121 | * @param obj is the main structure for bpf objects. |
| 122 | * |
| 123 | * @return It returns 0 on success and -1 otherwise. |
| 124 | */ |
| 125 | static int ebpf_mount_attach_probe(struct mount_bpf *obj) |
| 126 | { |
| 127 | char syscall[NETDATA_EBPF_MAX_SYSCALL_LENGTH + 1]; |
| 128 | |
| 129 | ebpf_select_host_prefix( |
| 130 | syscall, NETDATA_EBPF_MAX_SYSCALL_LENGTH, mount_targets[NETDATA_MOUNT_SYSCALL].name, running_on_kernel); |
| 131 | |
| 132 | obj->links.netdata_mount_probe = bpf_program__attach_kprobe(obj->progs.netdata_mount_probe, false, syscall); |
| 133 | int ret = (int)libbpf_get_error(obj->links.netdata_mount_probe); |
| 134 | if (ret) |
| 135 | return -1; |
| 136 | |
| 137 | obj->links.netdata_mount_retprobe = bpf_program__attach_kprobe(obj->progs.netdata_mount_retprobe, true, syscall); |
| 138 | ret = (int)libbpf_get_error(obj->links.netdata_mount_retprobe); |
| 139 | if (ret) |
| 140 | return -1; |
| 141 | |
| 142 | ebpf_select_host_prefix( |
| 143 | syscall, NETDATA_EBPF_MAX_SYSCALL_LENGTH, mount_targets[NETDATA_UMOUNT_SYSCALL].name, running_on_kernel); |
| 144 | |
| 145 | obj->links.netdata_umount_probe = bpf_program__attach_kprobe(obj->progs.netdata_umount_probe, false, syscall); |
| 146 | ret = (int)libbpf_get_error(obj->links.netdata_umount_probe); |
| 147 | if (ret) |
| 148 | return -1; |
| 149 | |
| 150 | obj->links.netdata_umount_retprobe = bpf_program__attach_kprobe(obj->progs.netdata_umount_retprobe, true, syscall); |
| 151 | ret = (int)libbpf_get_error(obj->links.netdata_umount_retprobe); |
| 152 | if (ret) |
| 153 | return -1; |
| 154 | |
| 155 | return 0; |
| 156 | } |
| 157 | |
| 158 | /** |
| 159 | * Set hash tables |
| 160 | * |
| 161 | * Set the values for maps according the value given by kernel. |
| 162 | * |
| 163 | * @param obj is the main structure for bpf objects. |
| 164 | */ |
| 165 | static void ebpf_mount_set_hash_tables(struct mount_bpf *obj) |
| 166 | { |
| 167 | mount_maps[NETDATA_KEY_MOUNT_TABLE].map_fd = bpf_map__fd(obj->maps.tbl_mount); |
| 168 | } |
| 169 | |
| 170 | /** |
| 171 | * Load and attach |
| 172 | * |
| 173 | * Load and attach the eBPF code in kernel. |
| 174 | * |
| 175 | * @param obj is the main structure for bpf objects. |
| 176 | * @param em structure with configuration |
| 177 | * |
| 178 | * @return it returns 0 on success and -1 otherwise |
| 179 | */ |
| 180 | static inline int ebpf_mount_load_and_attach(struct mount_bpf *obj, ebpf_module_t *em) |
| 181 | { |
| 182 | netdata_ebpf_program_loaded_t mode = em->targets[NETDATA_MOUNT_SYSCALL].mode; |
| 183 | |
| 184 | // We are testing only one, because all will have the same behavior |
| 185 | if (mode == EBPF_LOAD_TRAMPOLINE) { |
| 186 | ebpf_mount_disable_probe(obj); |
| 187 | ebpf_mount_disable_tracepoint(obj); |
| 188 | |
| 189 | netdata_set_trampoline_target(obj); |
| 190 | } else if (mode == EBPF_LOAD_PROBE || mode == EBPF_LOAD_RETPROBE) { |
| 191 | ebpf_mount_disable_tracepoint(obj); |
| 192 | ebpf_mount_disable_trampoline(obj); |
| 193 | } else { |
| 194 | ebpf_mount_disable_probe(obj); |
| 195 | ebpf_mount_disable_trampoline(obj); |
| 196 | } |
| 197 | |
| 198 | ebpf_update_map_type(obj->maps.tbl_mount, &mount_maps[NETDATA_KEY_MOUNT_TABLE]); |
| 199 | |
| 200 | int ret = mount_bpf__load(obj); |
| 201 | if (!ret) { |
| 202 | if (mode != EBPF_LOAD_PROBE && mode != EBPF_LOAD_RETPROBE) |
| 203 | ret = mount_bpf__attach(obj); |
| 204 | else |
| 205 | ret = ebpf_mount_attach_probe(obj); |
| 206 | |
| 207 | if (!ret) |
| 208 | ebpf_mount_set_hash_tables(obj); |
| 209 | } |
| 210 | |
| 211 | return ret; |
| 212 | } |
| 213 | #endif |
| 214 | /***************************************************************** |
| 215 | * |
| 216 | * FUNCTIONS TO CLOSE THE THREAD |
| 217 | * |
| 218 | *****************************************************************/ |
| 219 | |
| 220 | /** |
| 221 | * Obsolete global |
| 222 | * |
| 223 | * Obsolete global charts created by thread. |
| 224 | * |
| 225 | * @param em a pointer to `struct ebpf_module` |
| 226 | */ |
| 227 | static void ebpf_obsolete_mount_global(ebpf_module_t *em) |
| 228 | { |
| 229 | ebpf_write_chart_obsolete( |
| 230 | NETDATA_EBPF_MOUNT_GLOBAL_FAMILY, |
| 231 | NETDATA_EBPF_MOUNT_CALLS, |
| 232 | "", |
| 233 | "Calls to mount and umount syscalls", |
| 234 | EBPF_COMMON_UNITS_CALLS_PER_SEC, |
| 235 | NETDATA_EBPF_MOUNT_FAMILY, |
| 236 | NETDATA_EBPF_CHART_TYPE_LINE, |
| 237 | "mount_points.call", |
| 238 | NETDATA_CHART_PRIO_EBPF_MOUNT_CHARTS, |
| 239 | em->update_every); |
| 240 | |
| 241 | ebpf_write_chart_obsolete( |
| 242 | NETDATA_EBPF_MOUNT_GLOBAL_FAMILY, |
| 243 | NETDATA_EBPF_MOUNT_ERRORS, |
| 244 | "", |
| 245 | "Errors to mount and umount file systems", |
| 246 | EBPF_COMMON_UNITS_CALLS_PER_SEC, |
| 247 | NETDATA_EBPF_MOUNT_FAMILY, |
| 248 | NETDATA_EBPF_CHART_TYPE_LINE, |
| 249 | "mount_points.error", |
| 250 | NETDATA_CHART_PRIO_EBPF_MOUNT_CHARTS + 1, |
| 251 | em->update_every); |
| 252 | } |
| 253 | |
| 254 | /** |
| 255 | * Mount Exit |
| 256 | * |
| 257 | * Cancel child thread. |
| 258 | * |
| 259 | * @param ptr thread data. |
| 260 | */ |
| 261 | void ebpf_mount_unload_bpf(ebpf_module_t *em) |
| 262 | { |
| 263 | #ifdef LIBBPF_MAJOR_VERSION |
| 264 | if (mount_bpf_obj) { |
| 265 | mount_bpf__destroy(mount_bpf_obj); |
| 266 | mount_bpf_obj = NULL; |
| 267 | } |
| 268 | #endif |
| 269 | if ((em->load & EBPF_LOAD_LEGACY) && em->probe_links) { |
| 270 | ebpf_unload_legacy_code(em->objects, em->probe_links); |
| 271 | em->objects = NULL; |
| 272 | em->probe_links = NULL; |
| 273 | } |
| 274 | } |
| 275 | |
| 276 | static void ebpf_mount_exit(void *pptr) |
| 277 | { |
| 278 | ebpf_module_t *em = CLEANUP_FUNCTION_GET_PTR(pptr); |
| 279 | if (!em) |
| 280 | return; |
| 281 | |
| 282 | if (ebpf_module_enabled_get(em) == NETDATA_THREAD_EBPF_FUNCTION_RUNNING && !ebpf_plugin_stop()) { |
| 283 | netdata_mutex_lock(&lock); |
| 284 | |
| 285 | ebpf_obsolete_mount_global(em); |
| 286 | |
| 287 | fflush(stdout); |
| 288 | netdata_mutex_unlock(&lock); |
| 289 | } |
| 290 | |
| 291 | if (!ebpf_plugin_stop() && em->functions.bpf_unload) |
| 292 | em->functions.bpf_unload(em); |
| 293 | |
| 294 | netdata_mutex_lock(&ebpf_exit_cleanup); |
| 295 | ebpf_module_enabled_set(em, NETDATA_THREAD_EBPF_STOPPED); |
| 296 | netdata_mutex_unlock(&ebpf_exit_cleanup); |
| 297 | } |
| 298 | |
| 299 | /***************************************************************** |
| 300 | * |
| 301 | * MAIN LOOP |
| 302 | * |
| 303 | *****************************************************************/ |
| 304 | |
| 305 | /** |
| 306 | * Read global table |
| 307 | * |
| 308 | * Read the table with number of calls for all functions |
| 309 | * |
| 310 | * @param maps_per_core do I need to read all cores? |
| 311 | */ |
| 312 | static void ebpf_mount_read_global_table(int maps_per_core) |
| 313 | { |
| 314 | static netdata_idx_t *mount_values = NULL; |
| 315 | if (!mount_values) |
| 316 | mount_values = callocz((size_t)ebpf_nprocs + 1, sizeof(netdata_idx_t)); |
| 317 | |
| 318 | uint32_t idx; |
| 319 | netdata_idx_t *val = mount_hash_values; |
| 320 | netdata_idx_t *stored = mount_values; |
| 321 | size_t length = sizeof(netdata_idx_t); |
| 322 | if (maps_per_core) |
| 323 | length *= ebpf_nprocs; |
| 324 | |
| 325 | int fd = mount_maps[NETDATA_KEY_MOUNT_TABLE].map_fd; |
| 326 | |
| 327 | for (idx = NETDATA_KEY_MOUNT_CALL; idx < NETDATA_MOUNT_END; idx++) { |
| 328 | if (bpf_map_lookup_elem(fd, &idx, stored) == 0) { |
| 329 | int i; |
| 330 | int end = (maps_per_core) ? ebpf_nprocs : 1; |
| 331 | netdata_idx_t total = 0; |
| 332 | for (i = 0; i < end; i++) |
| 333 | total += stored[i]; |
| 334 | |
| 335 | val[idx] = total; |
| 336 | memset(stored, 0, length); |
| 337 | } |
| 338 | } |
| 339 | } |
| 340 | |
| 341 | /** |
| 342 | * Send data to Netdata calling auxiliary functions. |
| 343 | */ |
| 344 | static void ebpf_mount_send_data() |
| 345 | { |
| 346 | int i; |
| 347 | int end = NETDATA_EBPF_MOUNT_SYSCALL; |
| 348 | for (i = 0; i < end; i++) { |
| 349 | mount_publish_aggregated[i].ncall = mount_hash_values[i]; |
| 350 | mount_publish_aggregated[i].nerr = mount_hash_values[i + NETDATA_EBPF_MOUNT_SYSCALL]; |
| 351 | } |
| 352 | |
| 353 | write_count_chart( |
| 354 | NETDATA_EBPF_MOUNT_CALLS, |
| 355 | NETDATA_EBPF_MOUNT_GLOBAL_FAMILY, |
| 356 | mount_publish_aggregated, |
| 357 | NETDATA_EBPF_MOUNT_SYSCALL); |
| 358 | |
| 359 | write_err_chart( |
| 360 | NETDATA_EBPF_MOUNT_ERRORS, |
| 361 | NETDATA_EBPF_MOUNT_GLOBAL_FAMILY, |
| 362 | mount_publish_aggregated, |
| 363 | NETDATA_EBPF_MOUNT_SYSCALL); |
| 364 | } |
| 365 | |
| 366 | /** |
| 367 | * Main loop for this collector. |
| 368 | */ |
| 369 | static void mount_collector(ebpf_module_t *em) |
| 370 | { |
| 371 | memset(mount_hash_values, 0, sizeof(mount_hash_values)); |
| 372 | |
| 373 | int update_every = em->update_every; |
| 374 | int counter = update_every - 1; |
| 375 | int maps_per_core = em->maps_per_core; |
| 376 | uint32_t running_time = 0; |
| 377 | uint32_t lifetime = em->lifetime; |
| 378 | heartbeat_t hb; |
| 379 | heartbeat_init(&hb, USEC_PER_SEC); |
| 380 | while (!ebpf_plugin_stop() && running_time < lifetime) { |
| 381 | if (ebpf_plugin_stop()) |
| 382 | break; |
| 383 | |
| 384 | heartbeat_next(&hb); |
| 385 | if (ebpf_plugin_stop()) |
| 386 | break; |
| 387 | |
| 388 | if (++counter != update_every) |
| 389 | continue; |
| 390 | |
| 391 | counter = 0; |
| 392 | ebpf_mount_read_global_table(maps_per_core); |
| 393 | netdata_mutex_lock(&lock); |
| 394 | |
| 395 | ebpf_mount_send_data(); |
| 396 | |
| 397 | netdata_mutex_unlock(&lock); |
| 398 | |
| 399 | if (ebpf_plugin_stop()) |
| 400 | break; |
| 401 | |
| 402 | netdata_mutex_lock(&ebpf_exit_cleanup); |
| 403 | running_time += update_every; |
| 404 | em->running_time = running_time; |
| 405 | netdata_mutex_unlock(&ebpf_exit_cleanup); |
| 406 | } |
| 407 | } |
| 408 | |
| 409 | /***************************************************************** |
| 410 | * |
| 411 | * INITIALIZE THREAD |
| 412 | * |
| 413 | *****************************************************************/ |
| 414 | |
| 415 | /** |
| 416 | * Create mount charts |
| 417 | * |
| 418 | * Call ebpf_create_chart to create the charts for the collector. |
| 419 | * |
| 420 | * @param update_every value to overwrite the update frequency set by the server. |
| 421 | */ |
| 422 | static void ebpf_create_mount_charts(int update_every) |
| 423 | { |
| 424 | ebpf_create_chart( |
| 425 | NETDATA_EBPF_MOUNT_GLOBAL_FAMILY, |
| 426 | NETDATA_EBPF_MOUNT_CALLS, |
| 427 | "Calls to mount and umount syscalls", |
| 428 | EBPF_COMMON_UNITS_CALLS_PER_SEC, |
| 429 | NETDATA_EBPF_MOUNT_FAMILY, |
| 430 | "mount_points.call", |
| 431 | NETDATA_EBPF_CHART_TYPE_LINE, |
| 432 | NETDATA_CHART_PRIO_EBPF_MOUNT_CHARTS, |
| 433 | ebpf_create_global_dimension, |
| 434 | mount_publish_aggregated, |
| 435 | NETDATA_EBPF_MOUNT_SYSCALL, |
| 436 | update_every, |
| 437 | NETDATA_EBPF_MODULE_NAME_MOUNT); |
| 438 | |
| 439 | ebpf_create_chart( |
| 440 | NETDATA_EBPF_MOUNT_GLOBAL_FAMILY, |
| 441 | NETDATA_EBPF_MOUNT_ERRORS, |
| 442 | "Errors to mount and umount file systems", |
| 443 | EBPF_COMMON_UNITS_CALLS_PER_SEC, |
| 444 | NETDATA_EBPF_MOUNT_FAMILY, |
| 445 | "mount_points.error", |
| 446 | NETDATA_EBPF_CHART_TYPE_LINE, |
| 447 | NETDATA_CHART_PRIO_EBPF_MOUNT_CHARTS + 1, |
| 448 | ebpf_create_global_dimension, |
| 449 | mount_publish_aggregated, |
| 450 | NETDATA_EBPF_MOUNT_SYSCALL, |
| 451 | update_every, |
| 452 | NETDATA_EBPF_MODULE_NAME_MOUNT); |
| 453 | |
| 454 | fflush(stdout); |
| 455 | } |
| 456 | |
| 457 | /***************************************************************** |
| 458 | * |
| 459 | * MAIN THREAD |
| 460 | * |
| 461 | *****************************************************************/ |
| 462 | |
| 463 | /* |
| 464 | * Load BPF |
| 465 | * |
| 466 | * Load BPF files. |
| 467 | * |
| 468 | * @param em the structure with configuration |
| 469 | */ |
| 470 | static int ebpf_mount_load_bpf(ebpf_module_t *em) |
| 471 | { |
| 472 | #ifdef LIBBPF_MAJOR_VERSION |
| 473 | ebpf_define_map_type(em->maps, em->maps_per_core, running_on_kernel); |
| 474 | #endif |
| 475 | |
| 476 | int ret = 0; |
| 477 | if (em->load & EBPF_LOAD_LEGACY) { |
| 478 | em->probe_links = ebpf_load_program(ebpf_plugin_dir, em, running_on_kernel, isrh, &em->objects); |
| 479 | if (!em->probe_links) { |
| 480 | ret = -1; |
| 481 | } |
| 482 | } |
| 483 | #ifdef LIBBPF_MAJOR_VERSION |
| 484 | else { |
| 485 | mount_bpf_obj = mount_bpf__open(); |
| 486 | if (!mount_bpf_obj) |
| 487 | ret = -1; |
| 488 | else { |
| 489 | ret = ebpf_mount_load_and_attach(mount_bpf_obj, em); |
| 490 | if (ret) { |
| 491 | mount_bpf__destroy(mount_bpf_obj); |
| 492 | mount_bpf_obj = NULL; |
| 493 | } |
| 494 | } |
| 495 | } |
| 496 | #endif |
| 497 | |
| 498 | if (ret) |
| 499 | netdata_log_error("%s %s", EBPF_DEFAULT_ERROR_MSG, em->info.thread_name); |
| 500 | |
| 501 | return ret; |
| 502 | } |
| 503 | |
| 504 | /** |
| 505 | * Mount thread |
| 506 | * |
| 507 | * Thread used to make mount thread |
| 508 | * |
| 509 | * @param ptr a pointer to `struct ebpf_module` |
| 510 | * |
| 511 | * @return It always returns NULL |
| 512 | */ |
| 513 | void ebpf_mount_thread(void *ptr) |
| 514 | { |
| 515 | ebpf_module_t *em = ptr; |
| 516 | CLEANUP_FUNCTION_REGISTER(ebpf_mount_exit) cleanup_ptr = em; |
| 517 | |
| 518 | if (!ebpf_module_thread_has_valid_state(em)) { |
| 519 | goto endmount; |
| 520 | } |
| 521 | |
| 522 | em->maps = mount_maps; |
| 523 | |
| 524 | #ifdef LIBBPF_MAJOR_VERSION |
| 525 | ebpf_adjust_thread_load(em, default_btf); |
| 526 | #endif |
| 527 | if (ebpf_mount_load_bpf(em)) { |
| 528 | goto endmount; |
| 529 | } |
| 530 | ebpf_mark_program_loaded(); |
| 531 | |
| 532 | int algorithms[NETDATA_EBPF_MOUNT_SYSCALL] = {NETDATA_EBPF_INCREMENTAL_IDX, NETDATA_EBPF_INCREMENTAL_IDX}; |
| 533 | |
| 534 | ebpf_global_labels( |
| 535 | mount_aggregated_data, |
| 536 | mount_publish_aggregated, |
| 537 | mount_dimension_name, |
| 538 | mount_dimension_name, |
| 539 | algorithms, |
| 540 | NETDATA_EBPF_MOUNT_SYSCALL); |
| 541 | |
| 542 | netdata_mutex_lock(&lock); |
| 543 | ebpf_create_mount_charts(em->update_every); |
| 544 | ebpf_update_stats(&plugin_statistics, em); |
| 545 | ebpf_update_kernel_memory_with_vector(&plugin_statistics, em->maps, EBPF_ACTION_STAT_ADD); |
| 546 | netdata_mutex_unlock(&lock); |
| 547 | |
| 548 | mount_collector(em); |
| 549 | |
| 550 | endmount: |
| 551 | ebpf_update_disabled_plugin_stats(em); |
| 552 | } |