| 1 | // SPDX-License-Identifier: GPL-3.0-or-later |
| 2 | |
| 3 | #include "ebpf_unittest.h" |
| 4 | |
| 5 | #include <stdio.h> |
| 6 | #include <stdlib.h> |
| 7 | #include <string.h> |
| 8 | #include <stdint.h> |
| 9 | #include <arpa/inet.h> |
| 10 | #include <netinet/in.h> |
| 11 | #include "libbpf_api/ebpf_library.h" |
| 12 | #include "ebpf.h" |
| 13 | #include "ebpf_socket.h" |
| 14 | |
| 15 | extern uint32_t integration_with_collectors; |
| 16 | extern int running_on_kernel; |
| 17 | extern int isrh; |
| 18 | extern ebpf_module_t ebpf_modules[]; |
| 19 | extern char *ebpf_algorithms[]; |
| 20 | |
| 21 | ebpf_module_t test_em; |
| 22 | |
| 23 | static int tests_failed = 0; |
| 24 | |
| 25 | #define EBPF_UT_ASSERT(test, msg) \ |
| 26 | do { \ |
| 27 | if (!(test)) { \ |
| 28 | fprintf(stderr, ">>> FAILED: %s\n", msg); \ |
| 29 | tests_failed++; \ |
| 30 | } else { \ |
| 31 | fprintf(stderr, ">>> PASSED: %s\n", msg); \ |
| 32 | } \ |
| 33 | } while (0) |
| 34 | |
| 35 | /** |
| 36 | * Initialize structure |
| 37 | * |
| 38 | * Initialize structure used to run unittests |
| 39 | */ |
| 40 | void ebpf_ut_initialize_structure(netdata_run_mode_t mode) |
| 41 | { |
| 42 | memset(&test_em, 0, sizeof(ebpf_module_t)); |
| 43 | test_em.info.thread_name = strdupz("process"); |
| 44 | test_em.info.config_name = test_em.info.thread_name; |
| 45 | test_em.kernels = |
| 46 | NETDATA_V3_10 | NETDATA_V4_14 | NETDATA_V4_16 | NETDATA_V4_18 | NETDATA_V5_4 | NETDATA_V5_10 | NETDATA_V5_14; |
| 47 | test_em.pid_map_size = ND_EBPF_DEFAULT_PID_SIZE; |
| 48 | test_em.apps_level = NETDATA_APPS_LEVEL_REAL_PARENT; |
| 49 | test_em.mode = mode; |
| 50 | } |
| 51 | |
| 52 | /** |
| 53 | * Clean UP Memory |
| 54 | * |
| 55 | * Clean up allocated data during unit test; |
| 56 | */ |
| 57 | void ebpf_ut_cleanup_memory() |
| 58 | { |
| 59 | freez((void *)test_em.info.thread_name); |
| 60 | } |
| 61 | |
| 62 | /** |
| 63 | * Load Binary |
| 64 | * |
| 65 | * Test load of legacy eBPF programs. |
| 66 | * |
| 67 | * @return It returns 0 on success and -1 otherwise. |
| 68 | */ |
| 69 | static int ebpf_ut_load_binary() |
| 70 | { |
| 71 | test_em.probe_links = ebpf_load_program(ebpf_plugin_dir, &test_em, running_on_kernel, isrh, &test_em.objects); |
| 72 | if (!test_em.probe_links) |
| 73 | return -1; |
| 74 | |
| 75 | ebpf_unload_legacy_code(test_em.objects, test_em.probe_links); |
| 76 | |
| 77 | return 0; |
| 78 | } |
| 79 | |
| 80 | /** |
| 81 | * Load Real Binary |
| 82 | * |
| 83 | * Load an existent binary inside plugin directory. |
| 84 | * |
| 85 | * @return It returns 0 on success and -1 otherwise. |
| 86 | */ |
| 87 | int ebpf_ut_load_real_binary() |
| 88 | { |
| 89 | return ebpf_ut_load_binary(); |
| 90 | } |
| 91 | /** |
| 92 | * Load fake Binary |
| 93 | * |
| 94 | * Try to load a binary not generated by netdata. |
| 95 | * |
| 96 | * @return It returns 0 on success and -1 otherwise. The success for this function means we could work properly with |
| 97 | * expected fails. |
| 98 | */ |
| 99 | int ebpf_ut_load_fake_binary() |
| 100 | { |
| 101 | char *fake_name = strdupz("I_am_not_here"); |
| 102 | if (!fake_name) |
| 103 | return -1; |
| 104 | |
| 105 | const char *original = test_em.info.thread_name; |
| 106 | test_em.info.thread_name = fake_name; |
| 107 | |
| 108 | int ret = ebpf_ut_load_binary(); |
| 109 | |
| 110 | freez(fake_name); |
| 111 | test_em.info.thread_name = original; |
| 112 | |
| 113 | return !ret; |
| 114 | } |
| 115 | |
| 116 | /** |
| 117 | * Test write_chart_dimension |
| 118 | * |
| 119 | * Tests the write_chart_dimension function to ensure it correctly |
| 120 | * formats dimension output for charting. |
| 121 | */ |
| 122 | static void test_write_chart_dimension(void) |
| 123 | { |
| 124 | fprintf(stderr, "\n=== Testing write_chart_dimension ===\n"); |
| 125 | |
| 126 | fprintf(stderr, "--- Expected output: SET dimension_name = 12345 ---\n"); |
| 127 | fprintf(stderr, "--- Actual output: "); |
| 128 | write_chart_dimension("dimension_name", 12345); |
| 129 | fprintf(stderr, "---\n"); |
| 130 | } |
| 131 | |
| 132 | /** |
| 133 | * Test ebpf_write_global_dimension |
| 134 | * |
| 135 | * Tests the ebpf_write_global_dimension function to ensure it correctly |
| 136 | * formats global dimension output for charting. |
| 137 | */ |
| 138 | static void test_ebpf_write_global_dimension(void) |
| 139 | { |
| 140 | fprintf(stderr, "\n=== Testing ebpf_write_global_dimension ===\n"); |
| 141 | |
| 142 | fprintf(stderr, "--- Expected output: DIMENSION name id algorithm ---\n"); |
| 143 | fprintf(stderr, "--- Actual output: "); |
| 144 | ebpf_write_global_dimension("name", "id", "algorithm"); |
| 145 | fprintf(stderr, "---\n"); |
| 146 | } |
| 147 | |
| 148 | /** |
| 149 | * Test ebpf_write_chart_cmd |
| 150 | * |
| 151 | * Tests the ebpf_write_chart_cmd function to ensure it correctly |
| 152 | * formats chart command output. |
| 153 | */ |
| 154 | static void test_ebpf_write_chart_cmd(void) |
| 155 | { |
| 156 | fprintf(stderr, "\n=== Testing ebpf_write_chart_cmd ===\n"); |
| 157 | |
| 158 | fprintf(stderr, "--- Testing chart command output ---\n"); |
| 159 | ebpf_write_chart_cmd("type", "id", "_suffix", "title", "units", "family", "charttype", "context", 100, 1, "module"); |
| 160 | } |
| 161 | |
| 162 | /** |
| 163 | * Test ebpf_write_chart_obsolete |
| 164 | * |
| 165 | * Tests the ebpf_write_chart_obsolete function to ensure it correctly |
| 166 | * formats obsolete chart output. |
| 167 | */ |
| 168 | static void test_ebpf_write_chart_obsolete(void) |
| 169 | { |
| 170 | fprintf(stderr, "\n=== Testing ebpf_write_chart_obsolete ===\n"); |
| 171 | |
| 172 | fprintf(stderr, "--- Testing obsolete chart output ---\n"); |
| 173 | ebpf_write_chart_obsolete("type", "id", "_suffix", "title", "units", "family", "charttype", "context", 100, 1); |
| 174 | } |
| 175 | |
| 176 | /** |
| 177 | * Test ebpf_clean_ip_structure |
| 178 | * |
| 179 | * Tests the ebpf_clean_ip_structure function to ensure it correctly |
| 180 | * frees allocated IP list structures and clears the list pointer. |
| 181 | */ |
| 182 | static void test_ebpf_clean_ip_structure(void) |
| 183 | { |
| 184 | fprintf(stderr, "\n=== Testing ebpf_clean_ip_structure ===\n"); |
| 185 | |
| 186 | ebpf_network_viewer_ip_list_t *list = NULL; |
| 187 | ebpf_network_viewer_ip_list_t *item1, *item2; |
| 188 | |
| 189 | item1 = callocz(1, sizeof(ebpf_network_viewer_ip_list_t)); |
| 190 | item1->value = strdupz("192.168.1.1"); |
| 191 | item1->ver = AF_INET; |
| 192 | item1->next = NULL; |
| 193 | |
| 194 | item2 = callocz(1, sizeof(ebpf_network_viewer_ip_list_t)); |
| 195 | item2->value = strdupz("10.0.0.1"); |
| 196 | item2->ver = AF_INET; |
| 197 | item2->next = NULL; |
| 198 | |
| 199 | list = item1; |
| 200 | item1->next = item2; |
| 201 | |
| 202 | EBPF_UT_ASSERT(list != NULL, "List should not be NULL before cleaning"); |
| 203 | EBPF_UT_ASSERT(list->next != NULL, "List should have two items before cleaning"); |
| 204 | |
| 205 | ebpf_clean_ip_structure(&list); |
| 206 | |
| 207 | EBPF_UT_ASSERT(list == NULL, "List should be NULL after cleaning"); |
| 208 | } |
| 209 | |
| 210 | /** |
| 211 | * Test ebpf_clean_port_structure |
| 212 | * |
| 213 | * Tests the ebpf_clean_port_structure function to ensure it correctly |
| 214 | * frees allocated port list structures and clears the list pointer. |
| 215 | */ |
| 216 | static void test_ebpf_clean_port_structure(void) |
| 217 | { |
| 218 | fprintf(stderr, "\n=== Testing ebpf_clean_port_structure ===\n"); |
| 219 | |
| 220 | ebpf_network_viewer_port_list_t *list = NULL; |
| 221 | ebpf_network_viewer_port_list_t *item1, *item2; |
| 222 | |
| 223 | item1 = callocz(1, sizeof(ebpf_network_viewer_port_list_t)); |
| 224 | item1->value = strdupz("80"); |
| 225 | item1->first = htons(80); |
| 226 | item1->last = htons(80); |
| 227 | item1->next = NULL; |
| 228 | |
| 229 | item2 = callocz(1, sizeof(ebpf_network_viewer_port_list_t)); |
| 230 | item2->value = strdupz("443"); |
| 231 | item2->first = htons(443); |
| 232 | item2->last = htons(443); |
| 233 | item2->next = NULL; |
| 234 | |
| 235 | list = item1; |
| 236 | item1->next = item2; |
| 237 | |
| 238 | EBPF_UT_ASSERT(list != NULL, "Port list should not be NULL before cleaning"); |
| 239 | EBPF_UT_ASSERT(list->next != NULL, "Port list should have two items before cleaning"); |
| 240 | |
| 241 | ebpf_clean_port_structure(&list); |
| 242 | |
| 243 | EBPF_UT_ASSERT(list == NULL, "Port list should be NULL after cleaning"); |
| 244 | } |
| 245 | |
| 246 | /** |
| 247 | * Test ebpf_how_to_load |
| 248 | * |
| 249 | * Tests the ebpf_how_to_load function to ensure it correctly parses |
| 250 | * load mode strings and sets the appropriate thread mode. |
| 251 | */ |
| 252 | static void test_ebpf_how_to_load(void) |
| 253 | { |
| 254 | fprintf(stderr, "\n=== Testing ebpf_how_to_load ===\n"); |
| 255 | |
| 256 | ebpf_set_thread_mode(MODE_ENTRY); |
| 257 | EBPF_UT_ASSERT(ebpf_modules[0].mode == MODE_ENTRY, "Initial mode should be MODE_ENTRY"); |
| 258 | |
| 259 | ebpf_how_to_load("return"); |
| 260 | EBPF_UT_ASSERT(ebpf_modules[0].mode == MODE_RETURN, "Mode should be MODE_RETURN after 'return'"); |
| 261 | |
| 262 | ebpf_how_to_load("entry"); |
| 263 | EBPF_UT_ASSERT(ebpf_modules[0].mode == MODE_ENTRY, "Mode should be MODE_ENTRY after 'entry'"); |
| 264 | |
| 265 | ebpf_how_to_load("default"); |
| 266 | EBPF_UT_ASSERT(ebpf_modules[0].mode == MODE_ENTRY, "Mode should be MODE_ENTRY after 'default'"); |
| 267 | |
| 268 | ebpf_how_to_load("invalid_mode"); |
| 269 | EBPF_UT_ASSERT(ebpf_modules[0].mode == MODE_ENTRY, "Mode should remain MODE_ENTRY after invalid input"); |
| 270 | } |
| 271 | |
| 272 | /** |
| 273 | * Test ebpf_set_apps_mode |
| 274 | * |
| 275 | * Tests the ebpf_set_apps_mode function to ensure it correctly sets |
| 276 | * the apps integration mode for all modules. |
| 277 | */ |
| 278 | static void test_ebpf_set_apps_mode(void) |
| 279 | { |
| 280 | fprintf(stderr, "\n=== Testing ebpf_set_apps_mode ===\n"); |
| 281 | |
| 282 | ebpf_set_apps_mode(NETDATA_EBPF_APPS_FLAG_YES); |
| 283 | EBPF_UT_ASSERT( |
| 284 | ebpf_modules[0].apps_charts == NETDATA_EBPF_APPS_FLAG_YES, |
| 285 | "Apps mode should be set to NETDATA_EBPF_APPS_FLAG_YES"); |
| 286 | |
| 287 | ebpf_set_apps_mode(NETDATA_EBPF_APPS_FLAG_NO); |
| 288 | EBPF_UT_ASSERT( |
| 289 | ebpf_modules[0].apps_charts == NETDATA_EBPF_APPS_FLAG_NO, |
| 290 | "Apps mode should be set to NETDATA_EBPF_APPS_FLAG_NO"); |
| 291 | } |
| 292 | |
| 293 | /** |
| 294 | * Test ebpf_set_thread_mode |
| 295 | * |
| 296 | * Tests the ebpf_set_thread_mode function to ensure it correctly sets |
| 297 | * the run mode for all eBPF modules. |
| 298 | */ |
| 299 | static void test_ebpf_set_thread_mode(void) |
| 300 | { |
| 301 | fprintf(stderr, "\n=== Testing ebpf_set_thread_mode ===\n"); |
| 302 | |
| 303 | ebpf_set_thread_mode(MODE_RETURN); |
| 304 | EBPF_UT_ASSERT(ebpf_modules[0].mode == MODE_RETURN, "Thread mode should be MODE_RETURN"); |
| 305 | |
| 306 | ebpf_set_thread_mode(MODE_ENTRY); |
| 307 | EBPF_UT_ASSERT(ebpf_modules[0].mode == MODE_ENTRY, "Thread mode should be MODE_ENTRY"); |
| 308 | } |
| 309 | |
| 310 | /** |
| 311 | * Test ebpf_set_ipc_value |
| 312 | * |
| 313 | * Tests the ebpf_set_ipc_value function to ensure it correctly parses |
| 314 | * integration strings and sets the appropriate IPC integration mode. |
| 315 | */ |
| 316 | static void test_ebpf_set_ipc_value(void) |
| 317 | { |
| 318 | fprintf(stderr, "\n=== Testing ebpf_set_ipc_value ===\n"); |
| 319 | |
| 320 | ebpf_set_ipc_value("shm"); |
| 321 | EBPF_UT_ASSERT( |
| 322 | integration_with_collectors == NETDATA_EBPF_INTEGRATION_SHM, |
| 323 | "Integration should be NETDATA_EBPF_INTEGRATION_SHM"); |
| 324 | |
| 325 | ebpf_set_ipc_value("socket"); |
| 326 | EBPF_UT_ASSERT( |
| 327 | integration_with_collectors == NETDATA_EBPF_INTEGRATION_SOCKET, |
| 328 | "Integration should be NETDATA_EBPF_INTEGRATION_SOCKET"); |
| 329 | |
| 330 | ebpf_set_ipc_value("disabled"); |
| 331 | EBPF_UT_ASSERT( |
| 332 | integration_with_collectors == NETDATA_EBPF_INTEGRATION_DISABLED, |
| 333 | "Integration should be NETDATA_EBPF_INTEGRATION_DISABLED"); |
| 334 | |
| 335 | ebpf_set_ipc_value("invalid"); |
| 336 | EBPF_UT_ASSERT( |
| 337 | integration_with_collectors == NETDATA_EBPF_INTEGRATION_DISABLED, |
| 338 | "Integration should be DISABLED for invalid input"); |
| 339 | } |
| 340 | |
| 341 | /** |
| 342 | * Test disable_all_global_charts |
| 343 | * |
| 344 | * Tests the disable_all_global_charts function to ensure it correctly |
| 345 | * disables all global charts across all modules. |
| 346 | */ |
| 347 | static void test_disable_all_global_charts(void) |
| 348 | { |
| 349 | fprintf(stderr, "\n=== Testing disable_all_global_charts ===\n"); |
| 350 | |
| 351 | ebpf_modules[0].enabled = NETDATA_THREAD_EBPF_RUNNING; |
| 352 | ebpf_modules[0].global_charts = 1; |
| 353 | |
| 354 | disable_all_global_charts(); |
| 355 | |
| 356 | EBPF_UT_ASSERT( |
| 357 | ebpf_modules[0].enabled == NETDATA_THREAD_EBPF_NOT_RUNNING, |
| 358 | "Module should be disabled after disable_all_global_charts"); |
| 359 | EBPF_UT_ASSERT(ebpf_modules[0].global_charts == 0, "Global charts should be disabled"); |
| 360 | } |
| 361 | |
| 362 | /** |
| 363 | * Test ebpf_disable_cgroups |
| 364 | * |
| 365 | * Tests the ebpf_disable_cgroups function to ensure it correctly |
| 366 | * disables cgroup charts across all modules. |
| 367 | */ |
| 368 | static void test_ebpf_disable_cgroups(void) |
| 369 | { |
| 370 | fprintf(stderr, "\n=== Testing ebpf_disable_cgroups ===\n"); |
| 371 | |
| 372 | ebpf_modules[0].cgroup_charts = 1; |
| 373 | |
| 374 | ebpf_disable_cgroups(); |
| 375 | |
| 376 | EBPF_UT_ASSERT(ebpf_modules[0].cgroup_charts == 0, "Cgroup charts should be disabled"); |
| 377 | } |
| 378 | |
| 379 | /** |
| 380 | * Test ebpf_one_dimension_write_charts |
| 381 | * |
| 382 | * Tests the ebpf_one_dimension_write_charts function to ensure it correctly |
| 383 | * formats single dimension chart output. |
| 384 | */ |
| 385 | static void test_ebpf_one_dimension_write_charts(void) |
| 386 | { |
| 387 | fprintf(stderr, "\n=== Testing ebpf_one_dimension_write_charts ===\n"); |
| 388 | |
| 389 | fprintf(stderr, "--- Testing single dimension chart output ---\n"); |
| 390 | ebpf_one_dimension_write_charts("family", "chart", "dimension", 42); |
| 391 | } |
| 392 | |
| 393 | /** |
| 394 | * Test write_io_chart |
| 395 | * |
| 396 | * Tests the write_io_chart function to ensure it correctly formats |
| 397 | * I/O chart output with read and write dimensions. |
| 398 | */ |
| 399 | static void test_write_io_chart(void) |
| 400 | { |
| 401 | fprintf(stderr, "\n=== Testing write_io_chart ===\n"); |
| 402 | |
| 403 | fprintf(stderr, "--- Testing IO chart output ---\n"); |
| 404 | write_io_chart("chart", "family", "write_dim", 100, "read_dim", 200); |
| 405 | } |
| 406 | |
| 407 | /** |
| 408 | * Test write_histogram_chart |
| 409 | * |
| 410 | * Tests the write_histogram_chart function to ensure it correctly formats |
| 411 | * histogram chart output with multiple dimensions. |
| 412 | */ |
| 413 | static void test_write_histogram_chart(void) |
| 414 | { |
| 415 | fprintf(stderr, "\n=== Testing write_histogram_chart ===\n"); |
| 416 | |
| 417 | uint64_t hist[4] = {10, 20, 30, 40}; |
| 418 | char *dims[4] = {"bucket1", "bucket2", "bucket3", "bucket4"}; |
| 419 | |
| 420 | fprintf(stderr, "--- Testing histogram chart output ---\n"); |
| 421 | write_histogram_chart("family", "histogram", hist, dims, 4); |
| 422 | } |
| 423 | |
| 424 | /** |
| 425 | * Test ebpf_global_labels |
| 426 | * |
| 427 | * Tests the ebpf_global_labels function to ensure it correctly sets up |
| 428 | * syscall labels and creates proper linked lists. |
| 429 | */ |
| 430 | static void test_ebpf_global_labels(void) |
| 431 | { |
| 432 | fprintf(stderr, "\n=== Testing ebpf_global_labels ===\n"); |
| 433 | |
| 434 | netdata_syscall_stat_t is[3]; |
| 435 | netdata_publish_syscall_t pio[3]; |
| 436 | char *dim[3] = {"dim1", "dim2", "dim3"}; |
| 437 | char *name[3] = {"name1", "name2", "name3"}; |
| 438 | int algorithm[3] = {0, 0, 0}; |
| 439 | |
| 440 | memset(is, 0, sizeof(is)); |
| 441 | memset(pio, 0, sizeof(pio)); |
| 442 | |
| 443 | ebpf_global_labels(is, pio, dim, name, algorithm, 3); |
| 444 | |
| 445 | EBPF_UT_ASSERT(is[0].next == &is[1], "is[0].next should point to is[1]"); |
| 446 | EBPF_UT_ASSERT(is[1].next == &is[2], "is[1].next should point to is[2]"); |
| 447 | EBPF_UT_ASSERT(is[2].next == NULL, "is[2].next should be NULL"); |
| 448 | |
| 449 | EBPF_UT_ASSERT(pio[0].dimension == dim[0], "pio[0].dimension should be dim[0]"); |
| 450 | EBPF_UT_ASSERT(pio[1].dimension == dim[1], "pio[1].dimension should be dim[1]"); |
| 451 | EBPF_UT_ASSERT(pio[2].dimension == dim[2], "pio[2].dimension should be dim[2]"); |
| 452 | } |
| 453 | |
| 454 | /** |
| 455 | * Test ebpf_parse_ports basic |
| 456 | * |
| 457 | * Tests the ebpf_parse_ports function with basic port numbers |
| 458 | * to ensure it correctly parses and creates port list entries. |
| 459 | */ |
| 460 | static void test_ebpf_parse_ports_basic(void) |
| 461 | { |
| 462 | fprintf(stderr, "\n=== Testing ebpf_parse_ports (basic) ===\n"); |
| 463 | |
| 464 | network_viewer_opt.included_port = NULL; |
| 465 | network_viewer_opt.excluded_port = NULL; |
| 466 | |
| 467 | ebpf_parse_ports("80 443"); |
| 468 | |
| 469 | EBPF_UT_ASSERT(network_viewer_opt.included_port != NULL, "Port list should not be NULL after parsing '80 443'"); |
| 470 | |
| 471 | ebpf_clean_port_structure(&network_viewer_opt.included_port); |
| 472 | network_viewer_opt.included_port = NULL; |
| 473 | } |
| 474 | |
| 475 | /** |
| 476 | * Test ebpf_parse_ports with range |
| 477 | * |
| 478 | * Tests the ebpf_parse_ports function with port ranges |
| 479 | * to ensure it correctly parses and creates port range entries. |
| 480 | */ |
| 481 | static void test_ebpf_parse_ports_with_range(void) |
| 482 | { |
| 483 | fprintf(stderr, "\n=== Testing ebpf_parse_ports with range ===\n"); |
| 484 | |
| 485 | network_viewer_opt.included_port = NULL; |
| 486 | |
| 487 | ebpf_parse_ports("8000-9000"); |
| 488 | |
| 489 | EBPF_UT_ASSERT(network_viewer_opt.included_port != NULL, "Port list should not be NULL after parsing range"); |
| 490 | |
| 491 | if (network_viewer_opt.included_port) { |
| 492 | uint16_t first = ntohs(network_viewer_opt.included_port->first); |
| 493 | uint16_t last = ntohs(network_viewer_opt.included_port->last); |
| 494 | EBPF_UT_ASSERT(first == 8000, "First port should be 8000"); |
| 495 | EBPF_UT_ASSERT(last == 9000, "Last port should be 9000"); |
| 496 | } |
| 497 | |
| 498 | ebpf_clean_port_structure(&network_viewer_opt.included_port); |
| 499 | network_viewer_opt.included_port = NULL; |
| 500 | } |
| 501 | |
| 502 | /** |
| 503 | * Test ebpf_parse_ips_unsafe basic |
| 504 | * |
| 505 | * Tests the ebpf_parse_ips_unsafe function with basic IPv4 addresses |
| 506 | * to ensure it correctly parses and creates IP list entries. |
| 507 | */ |
| 508 | static void test_ebpf_parse_ips_basic(void) |
| 509 | { |
| 510 | fprintf(stderr, "\n=== Testing ebpf_parse_ips_unsafe (basic) ===\n"); |
| 511 | |
| 512 | network_viewer_opt.included_ips = NULL; |
| 513 | |
| 514 | ebpf_parse_ips_unsafe("192.168.1.1"); |
| 515 | |
| 516 | EBPF_UT_ASSERT(network_viewer_opt.included_ips != NULL, "IP list should not be NULL after parsing IP"); |
| 517 | |
| 518 | if (network_viewer_opt.included_ips) { |
| 519 | EBPF_UT_ASSERT(network_viewer_opt.included_ips->ver == AF_INET, "IP should be IPv4"); |
| 520 | } |
| 521 | |
| 522 | ebpf_clean_ip_structure(&network_viewer_opt.included_ips); |
| 523 | network_viewer_opt.included_ips = NULL; |
| 524 | } |
| 525 | |
| 526 | /** |
| 527 | * Test ebpf_parse_ips_unsafe with CIDR |
| 528 | * |
| 529 | * Tests the ebpf_parse_ips_unsafe function with CIDR notation |
| 530 | * to ensure it correctly parses and creates IP range entries. |
| 531 | */ |
| 532 | static void test_ebpf_parse_ips_with_cidr(void) |
| 533 | { |
| 534 | fprintf(stderr, "\n=== Testing ebpf_parse_ips_unsafe with CIDR ===\n"); |
| 535 | |
| 536 | network_viewer_opt.included_ips = NULL; |
| 537 | |
| 538 | ebpf_parse_ips_unsafe("192.168.0.0/24"); |
| 539 | |
| 540 | EBPF_UT_ASSERT(network_viewer_opt.included_ips != NULL, "IP list should not be NULL after parsing CIDR"); |
| 541 | |
| 542 | ebpf_clean_ip_structure(&network_viewer_opt.included_ips); |
| 543 | network_viewer_opt.included_ips = NULL; |
| 544 | } |
| 545 | |
| 546 | /** |
| 547 | * Test ebpf_print_help |
| 548 | * |
| 549 | * Tests the ebpf_print_help function to ensure it correctly |
| 550 | * outputs help information to stderr. |
| 551 | */ |
| 552 | static void test_ebpf_print_help(void) |
| 553 | { |
| 554 | fprintf(stderr, "\n=== Testing ebpf_print_help ===\n"); |
| 555 | |
| 556 | fprintf(stderr, "--- Help output start ---\n"); |
| 557 | ebpf_print_help(); |
| 558 | fprintf(stderr, "--- Help output end ---\n"); |
| 559 | } |
| 560 | |
| 561 | /** |
| 562 | * Test write_count_chart |
| 563 | * |
| 564 | * Tests the write_count_chart function to ensure it correctly |
| 565 | * formats count chart output with syscall data. |
| 566 | */ |
| 567 | static void test_write_count_chart(void) |
| 568 | { |
| 569 | fprintf(stderr, "\n=== Testing write_count_chart ===\n"); |
| 570 | |
| 571 | netdata_publish_syscall_t publish[2]; |
| 572 | memset(publish, 0, sizeof(publish)); |
| 573 | |
| 574 | publish[0].name = strdupz("call1"); |
| 575 | publish[0].ncall = 100; |
| 576 | publish[0].next = &publish[1]; |
| 577 | |
| 578 | publish[1].name = strdupz("call2"); |
| 579 | publish[1].ncall = 200; |
| 580 | publish[1].next = NULL; |
| 581 | |
| 582 | fprintf(stderr, "--- Count chart output ---\n"); |
| 583 | write_count_chart("chart", "family", publish, 2); |
| 584 | |
| 585 | freez(publish[0].name); |
| 586 | freez(publish[1].name); |
| 587 | } |
| 588 | |
| 589 | /** |
| 590 | * Test write_err_chart |
| 591 | * |
| 592 | * Tests the write_err_chart function to ensure it correctly |
| 593 | * formats error chart output with syscall error data. |
| 594 | */ |
| 595 | static void test_write_err_chart(void) |
| 596 | { |
| 597 | fprintf(stderr, "\n=== Testing write_err_chart ===\n"); |
| 598 | |
| 599 | netdata_publish_syscall_t publish[2]; |
| 600 | memset(publish, 0, sizeof(publish)); |
| 601 | |
| 602 | publish[0].name = strdupz("err1"); |
| 603 | publish[0].nerr = 5; |
| 604 | publish[0].next = &publish[1]; |
| 605 | |
| 606 | publish[1].name = strdupz("err2"); |
| 607 | publish[1].nerr = 10; |
| 608 | publish[1].next = NULL; |
| 609 | |
| 610 | fprintf(stderr, "--- Error chart output ---\n"); |
| 611 | write_err_chart("chart", "family", publish, 2); |
| 612 | |
| 613 | freez(publish[0].name); |
| 614 | freez(publish[1].name); |
| 615 | } |
| 616 | |
| 617 | /** |
| 618 | * Test ebpf_create_global_dimension |
| 619 | * |
| 620 | * Tests the ebpf_create_global_dimension function to ensure it correctly |
| 621 | * creates global dimension entries from a linked list. |
| 622 | */ |
| 623 | static void test_ebpf_create_global_dimension(void) |
| 624 | { |
| 625 | fprintf(stderr, "\n=== Testing ebpf_create_global_dimension ===\n"); |
| 626 | |
| 627 | netdata_publish_syscall_t publish[3]; |
| 628 | memset(publish, 0, sizeof(publish)); |
| 629 | |
| 630 | publish[0].name = strdupz("dim1"); |
| 631 | publish[0].dimension = strdupz("dim1_id"); |
| 632 | publish[0].algorithm = "absolute"; |
| 633 | publish[0].next = &publish[1]; |
| 634 | |
| 635 | publish[1].name = strdupz("dim2"); |
| 636 | publish[1].dimension = strdupz("dim2_id"); |
| 637 | publish[1].algorithm = "absolute"; |
| 638 | publish[1].next = &publish[2]; |
| 639 | |
| 640 | publish[2].name = strdupz("dim3"); |
| 641 | publish[2].dimension = strdupz("dim3_id"); |
| 642 | publish[2].algorithm = "absolute"; |
| 643 | publish[2].next = NULL; |
| 644 | |
| 645 | fprintf(stderr, "--- Global dimension output ---\n"); |
| 646 | ebpf_create_global_dimension(publish, 3); |
| 647 | |
| 648 | freez(publish[0].name); |
| 649 | freez(publish[0].dimension); |
| 650 | freez(publish[1].name); |
| 651 | freez(publish[1].dimension); |
| 652 | freez(publish[2].name); |
| 653 | freez(publish[2].dimension); |
| 654 | } |
| 655 | |
| 656 | /** |
| 657 | * Test ebpf_enable_specific_chart |
| 658 | * |
| 659 | * Tests the ebpf_enable_specific_chart function to ensure it correctly |
| 660 | * enables specific charts with proper flags. |
| 661 | */ |
| 662 | static void test_ebpf_enable_specific_chart(void) |
| 663 | { |
| 664 | fprintf(stderr, "\n=== Testing ebpf_enable_specific_chart ===\n"); |
| 665 | |
| 666 | ebpf_module_t test_module; |
| 667 | memset(&test_module, 0, sizeof(test_module)); |
| 668 | |
| 669 | ebpf_enable_specific_chart(&test_module, 0); |
| 670 | |
| 671 | EBPF_UT_ASSERT(test_module.enabled == NETDATA_THREAD_EBPF_RUNNING, "Module should be enabled"); |
| 672 | EBPF_UT_ASSERT(test_module.global_charts == CONFIG_BOOLEAN_YES, "Global charts should be enabled"); |
| 673 | EBPF_UT_ASSERT( |
| 674 | test_module.cgroup_charts == CONFIG_BOOLEAN_YES, "Cgroup charts should be enabled when disable_cgroup is 0"); |
| 675 | |
| 676 | memset(&test_module, 0, sizeof(test_module)); |
| 677 | ebpf_enable_specific_chart(&test_module, 1); |
| 678 | |
| 679 | EBPF_UT_ASSERT(test_module.cgroup_charts == 0, "Cgroup charts should be disabled when disable_cgroup is 1"); |
| 680 | } |
| 681 | |
| 682 | /** |
| 683 | * Test ebpf_enable_chart |
| 684 | * |
| 685 | * Tests the ebpf_enable_chart function to ensure it correctly |
| 686 | * enables charts by index. |
| 687 | */ |
| 688 | static void test_ebpf_enable_chart(void) |
| 689 | { |
| 690 | fprintf(stderr, "\n=== Testing ebpf_enable_chart ===\n"); |
| 691 | |
| 692 | ebpf_modules[0].enabled = NETDATA_THREAD_EBPF_NOT_RUNNING; |
| 693 | |
| 694 | ebpf_enable_chart(0, 0); |
| 695 | |
| 696 | EBPF_UT_ASSERT(ebpf_modules[0].enabled == NETDATA_THREAD_EBPF_RUNNING, "Chart at index 0 should be enabled"); |
| 697 | } |
| 698 | |
| 699 | /** |
| 700 | * Test parse_network_viewer_section with NULL |
| 701 | * |
| 702 | * Tests the parse_network_viewer_section function with empty config |
| 703 | * to ensure it sets appropriate default values. |
| 704 | */ |
| 705 | static void test_parse_network_viewer_section_null(void) |
| 706 | { |
| 707 | fprintf(stderr, "\n=== Testing parse_network_viewer_section (NULL) ===\n"); |
| 708 | |
| 709 | struct config cfg; |
| 710 | memset(&cfg, 0, sizeof(cfg)); |
| 711 | |
| 712 | parse_network_viewer_section(&cfg); |
| 713 | |
| 714 | EBPF_UT_ASSERT( |
| 715 | network_viewer_opt.hostname_resolution_enabled == CONFIG_BOOLEAN_NO, |
| 716 | "Hostname resolution should be disabled by default"); |
| 717 | } |
| 718 | |
| 719 | /** |
| 720 | * Test ebpf_load_collector_config |
| 721 | * |
| 722 | * Tests the ebpf_load_collector_config function with non-existent path |
| 723 | * to ensure it handles errors correctly. |
| 724 | */ |
| 725 | static void test_ebpf_load_collector_config(void) |
| 726 | { |
| 727 | fprintf(stderr, "\n=== Testing ebpf_load_collector_config ===\n"); |
| 728 | |
| 729 | int disable_cgroups = 0; |
| 730 | int result = ebpf_load_collector_config("/tmp", &disable_cgroups, 1); |
| 731 | |
| 732 | EBPF_UT_ASSERT(result == -1, "Should return -1 for non-existent config path"); |
| 733 | } |
| 734 | |
| 735 | void ebpf_library_run_unittests(void) |
| 736 | { |
| 737 | fprintf(stderr, "\n"); |
| 738 | fprintf(stderr, "===========================================\n"); |
| 739 | fprintf(stderr, " EBPF Library Unit Tests\n"); |
| 740 | fprintf(stderr, "===========================================\n"); |
| 741 | |
| 742 | test_write_chart_dimension(); |
| 743 | test_ebpf_write_global_dimension(); |
| 744 | test_ebpf_write_chart_cmd(); |
| 745 | test_ebpf_write_chart_obsolete(); |
| 746 | test_ebpf_clean_ip_structure(); |
| 747 | test_ebpf_clean_port_structure(); |
| 748 | test_ebpf_how_to_load(); |
| 749 | test_ebpf_set_apps_mode(); |
| 750 | test_ebpf_set_thread_mode(); |
| 751 | test_ebpf_set_ipc_value(); |
| 752 | test_disable_all_global_charts(); |
| 753 | test_ebpf_disable_cgroups(); |
| 754 | test_ebpf_one_dimension_write_charts(); |
| 755 | test_write_io_chart(); |
| 756 | test_write_histogram_chart(); |
| 757 | test_ebpf_global_labels(); |
| 758 | test_ebpf_parse_ports_basic(); |
| 759 | test_ebpf_parse_ports_with_range(); |
| 760 | test_ebpf_parse_ips_basic(); |
| 761 | test_ebpf_parse_ips_with_cidr(); |
| 762 | test_ebpf_print_help(); |
| 763 | test_write_count_chart(); |
| 764 | test_write_err_chart(); |
| 765 | test_ebpf_create_global_dimension(); |
| 766 | test_ebpf_enable_specific_chart(); |
| 767 | test_ebpf_enable_chart(); |
| 768 | test_parse_network_viewer_section_null(); |
| 769 | test_ebpf_load_collector_config(); |
| 770 | |
| 771 | fprintf(stderr, "\n"); |
| 772 | fprintf(stderr, "===========================================\n"); |
| 773 | if (tests_failed == 0) { |
| 774 | fprintf(stderr, " All tests PASSED\n"); |
| 775 | } else { |
| 776 | fprintf(stderr, " %d tests FAILED\n", tests_failed); |
| 777 | } |
| 778 | fprintf(stderr, "===========================================\n"); |
| 779 | } |