queue.c
| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * queue.h | ||
| 3 | * | ||
| 4 | * Created on: Sep 3, 2018 | ||
| 5 | * Author: alexey | ||
| 6 | */ | ||
| 7 | #define _POSIX_C_SOURCE 200809L | ||
| 8 | |||
| 9 | #if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7) || (__clang__) | ||
| 10 | #define GCC_DIAGNOSTIC_AWARE 1 | ||
| 11 | #else | ||
| 12 | #define GCC_DIAGNOSTIC_AWARE 0 | ||
| 13 | #endif | ||
| 14 | |||
| 15 | #ifdef __GNUC__ | ||
| 16 | #define SUPPRESS_NOT_USED_WARN __attribute__((unused)) | ||
| 17 | #else | ||
| 18 | #define SUPPRESS_NOT_USED_WARN | ||
| 19 | #endif | ||
| 20 | |||
| 21 | #include <alloca.h> | ||
| 22 | #include <ctype.h> | ||
| 23 | #include <fcntl.h> | ||
| 24 | #include <libgen.h> | ||
| 25 | #include <linux/limits.h> | ||
| 26 | #include <pthread.h> | ||
| 27 | #include <stdarg.h> | ||
| 28 | #include <stdbool.h> | ||
| 29 | #include <stdint.h> | ||
| 30 | #include <stdio.h> | ||
| 31 | #include <stdlib.h> | ||
| 32 | #include <string.h> | ||
| 33 | #include <sys/stat.h> | ||
| 34 | #include <sys/time.h> | ||
| 35 | #include <time.h> | ||
| 36 | #include <unistd.h> | ||
| 37 | #include <dlfcn.h> | ||
| 38 | #include <sys/mman.h> | ||
| 39 | |||
| 40 | #include "pcre/pcre.h" | ||
| 41 | #if defined(PA_RULES_VERSION) | ||
| 42 | #include "php_version.h" // PHP_MAJOR_VERSION definition is now available | ||
| 43 | #endif | ||
| 44 | |||
| 45 | #ifdef UNIT_TESTING | ||
| 46 | #define QUEUE_NOINLINE | ||
| 47 | #endif | ||
| 48 | |||
| 49 | #include "../shared-storage/bayrepodump.h" | ||
| 50 | #include "../shared-storage/bayrepomalloc.h" | ||
| 51 | #include "global_data.h" | ||
| 52 | #include "map/map.h" | ||
| 53 | #include "queue.h" | ||
| 54 | #include "queue_buffer.h" | ||
| 55 | #include "reversed_ordered_set/reversed_ordered_set.h" | ||
| 56 | #include "stringfunc.h" | ||
| 57 | #include "counters-saver.h" | ||
| 58 | |||
| 59 | #include "unit_test_common.h" | ||
| 60 | |||
| 61 | #define G_MIN_HANDLE_STRING_SIZE 4 | ||
| 62 | #define G_MIN_HANDLE_STRING_SIZE_RCE 1 | ||
| 63 | #define G_MAX_PARAM_LENGTH 1024 | ||
| 64 | |||
| 65 | #define G_MAX_RESULT_LEN 256 | ||
| 66 | |||
| 67 | #define G_NON_LOG_RULE_ID 120000 | ||
| 68 | |||
| 69 | #define SIZE_OF_ELEM 1 | ||
| 70 | #define OK 0 | ||
| 71 | #define PHP_IMUNITY_MIN_ID 80000 | ||
| 72 | #define PHP_IMUNITY_MAX_ID 119999 | ||
| 73 | |||
| 74 | static map_str_t config_data = map_static_init(0); | ||
| 75 | static params_global_data *parms_data_g_ptr = NULL; | ||
| 76 | |||
| 77 | static char *v2_database_paths[2] = {BIN_F_V2_AGENT, BIN_V2_F}; | ||
| 78 | static map_int_t *urls_list = NULL; | ||
| 79 | static reversed_ordered_set_t *files_list = NULL; | ||
| 80 | static map_str_t *funcs = NULL; | ||
| 81 | static map_int_t *func_id = NULL; | ||
| 82 | static map_str_t *func_old_conv = NULL; | ||
| 83 | static map_int_t *writeloggers = NULL; | ||
| 84 | static exclude_rules_list *fp_list_g = NULL; | ||
| 85 | static char *malware_directory_config = NULL; | ||
| 86 | static int malware_directory_config_fd = -1; | ||
| 87 | static reversed_ordered_set_t *exclude_files_list = NULL; | ||
| 88 | |||
| 89 | static params_global_data parms_data_g_ptr_v2 = {NULL, | ||
| 90 | map_static_init(NULL), | ||
| 91 | map_static_init(0), | ||
| 92 | {NULL, 0, 0, NULL}, | ||
| 93 | NULL, | ||
| 94 | NULL, | ||
| 95 | map_static_init(NULL), | ||
| 96 | map_static_init(NULL), | ||
| 97 | map_static_init(0), | ||
| 98 | map_static_init(NULL), | ||
| 99 | map_static_init(0), | ||
| 100 | {{NULL, 0, 0, NULL}, NULL, 0}, | ||
| 101 | {NULL}, | ||
| 102 | 0, | ||
| 103 | {NULL, 0, 0, NULL}}; | ||
| 104 | |||
| 105 | static params_list server_array = {NULL, NULL, 0, 0}; | ||
| 106 | extern char **environ; | ||
| 107 | |||
| 108 | static void *storage = NULL; | ||
| 109 | static void (*storage_free_cb)(void *storage_ptr) = &free; | ||
| 110 | typedef void (*storage_free_cb_ptr)(void *storage_ptr); | ||
| 111 | |||
| 112 | static map_str_t *script_rules_list_map = NULL; | ||
| 113 | static void *script_rules_list_storage = NULL; | ||
| 114 | static void (*script_rules_list_storage_free_cb)(void *storage_ptr) = &free; | ||
| 115 | |||
| 116 | typedef struct __script_rules { | ||
| 117 | rules_list *rules; | ||
| 118 | void *storage; | ||
| 119 | void (*storage_free_cb)(void *storage_ptr); | ||
| 120 | } script_rules_t; | ||
| 121 | |||
| 122 | static map_void_t scripts_rules_map = map_static_init(0); | ||
| 123 | |||
| 124 | #define FAKE_SCRIPT_RULES ((script_rules_t *)(intptr_t)-1) | ||
| 125 | |||
| 126 | static intptr_t current_script_rules_uid = 0; | ||
| 127 | static script_rules_t *current_script_rules = NULL; | ||
| 128 | static intptr_t common_script_rules_uid = 0; | ||
| 129 | static script_rules_t *common_script_rules = NULL; | ||
| 130 | #define I360_PATH_BUFF 4096 | ||
| 131 | |||
| 132 | static char current_db_path[I360_PATH_BUFF]; | ||
| 133 | |||
| 134 | 1 | char *i360_get_current_db_path() { | |
| 135 | 1 | return current_db_path; | |
| 136 | } | ||
| 137 | |||
| 138 | #ifndef UNIT_TESTING | ||
| 139 | static | ||
| 140 | #endif | ||
| 141 | 58 | void i360_load_script_rules() { | |
| 142 | 58 | script_rules_list_storage = brp_restore_mmap_dump(LIST_DUMP_F, &script_rules_list_storage_free_cb); | |
| 143 |
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58 | if (script_rules_list_storage) |
| 144 | ✗ | script_rules_list_map = (map_str_t *)brp_get_pointer_with_number(script_rules_list_storage, 0); | |
| 145 | |||
| 146 |
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58 | if (script_rules_list_map) |
| 147 | ✗ | return; | |
| 148 | |||
| 149 |
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58 | if (script_rules_list_storage && script_rules_list_storage_free_cb) |
| 150 | ✗ | script_rules_list_storage_free_cb(script_rules_list_storage); | |
| 151 | |||
| 152 | 58 | script_rules_list_storage = brp_restore_dump(LIST_BIN_F, SECURITY_BYTE); | |
| 153 | 58 | script_rules_list_storage_free_cb = &free; | |
| 154 | |||
| 155 |
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58 | if (script_rules_list_storage) |
| 156 | ✗ | script_rules_list_map = (map_str_t *)brp_get_pointer_with_number(script_rules_list_storage, 0); | |
| 157 | |||
| 158 |
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58 | if (script_rules_list_map) |
| 159 | ✗ | return; | |
| 160 | |||
| 161 |
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58 | if (script_rules_list_storage && script_rules_list_storage_free_cb) |
| 162 | ✗ | script_rules_list_storage_free_cb(script_rules_list_storage); | |
| 163 | } | ||
| 164 | |||
| 165 | #ifndef UNIT_TESTING | ||
| 166 | static | ||
| 167 | #endif | ||
| 168 | 104 | void i360_reset_script_rules() { | |
| 169 | 104 | map_iter_t iter = map_iter(&scripts_rules_map); | |
| 170 | const char *key; | ||
| 171 |
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104 | while ((key = map_next(&scripts_rules_map, &iter))) { |
| 172 | ✗ | script_rules_t *sr = *map_value(&scripts_rules_map, &iter); | |
| 173 | ✗ | if (sr == FAKE_SCRIPT_RULES) | |
| 174 | ✗ | continue; | |
| 175 | |||
| 176 | ✗ | if (sr->storage && sr->storage_free_cb) | |
| 177 | ✗ | sr->storage_free_cb(sr->storage); | |
| 178 | |||
| 179 | ✗ | free(sr); | |
| 180 | } | ||
| 181 | 104 | map_deinit(&scripts_rules_map); | |
| 182 | 104 | current_script_rules_uid = 0; | |
| 183 | 104 | current_script_rules = NULL; | |
| 184 | 104 | common_script_rules_uid = 0; | |
| 185 | 104 | common_script_rules = NULL; | |
| 186 | 104 | } | |
| 187 | |||
| 188 | #ifndef UNIT_TESTING | ||
| 189 | static | ||
| 190 | #endif | ||
| 191 | 59 | void i360_free_script_rules() { | |
| 192 | 59 | i360_reset_script_rules(); | |
| 193 | |||
| 194 |
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59 | if (script_rules_list_storage && script_rules_list_storage_free_cb) |
| 195 | ✗ | script_rules_list_storage_free_cb(script_rules_list_storage); | |
| 196 | |||
| 197 | 59 | script_rules_list_storage = NULL; | |
| 198 | 59 | script_rules_list_storage_free_cb = NULL; | |
| 199 | 59 | script_rules_list_map = NULL; | |
| 200 | 59 | } | |
| 201 | |||
| 202 | #ifndef UNIT_TESTING | ||
| 203 | static | ||
| 204 | #endif | ||
| 205 | 40 | void *i360_get_script_rules(const char *file_name, intptr_t uid) { | |
| 206 | 40 | int common = 0; | |
| 207 | |||
| 208 |
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40 | if (!script_rules_list_map || !uid) |
| 209 | 40 | return NULL; | |
| 210 | |||
| 211 | ✗ | if (file_name && *file_name == '*' && file_name[1] == 0) { | |
| 212 | ✗ | common = 1; | |
| 213 | ✗ | if (common_script_rules_uid == uid) | |
| 214 | ✗ | return (common_script_rules == FAKE_SCRIPT_RULES) ? NULL : common_script_rules; | |
| 215 | } | ||
| 216 | else { | ||
| 217 | // Fast path | ||
| 218 | ✗ | if (current_script_rules_uid && current_script_rules_uid == uid) | |
| 219 | ✗ | return (current_script_rules == FAKE_SCRIPT_RULES) ? NULL : current_script_rules; | |
| 220 | } | ||
| 221 | |||
| 222 | ✗ | intptr_t *script_rules_uid = common ? &common_script_rules_uid : ¤t_script_rules_uid; | |
| 223 | ✗ | script_rules_t **script_current_rules = common ? &common_script_rules : ¤t_script_rules; | |
| 224 | |||
| 225 | ✗ | *script_rules_uid = uid; | |
| 226 | ✗ | script_rules_t **script_rules_ptr = (script_rules_t **)map_get(&scripts_rules_map, file_name); | |
| 227 | ✗ | *script_current_rules = script_rules_ptr ? *script_rules_ptr : NULL; | |
| 228 | |||
| 229 | ✗ | if (*script_current_rules) | |
| 230 | ✗ | return (*script_current_rules == FAKE_SCRIPT_RULES) ? NULL : *script_current_rules; | |
| 231 | |||
| 232 | ✗ | char **script_rule_file = (char **)map_get(script_rules_list_map, file_name); | |
| 233 | |||
| 234 | ✗ | if (!script_rule_file || !*script_rule_file) { | |
| 235 | ✗ | map_set(&scripts_rules_map, file_name, (*script_current_rules = FAKE_SCRIPT_RULES)); | |
| 236 | ✗ | return NULL; | |
| 237 | } | ||
| 238 | |||
| 239 | char script_rule_file_buffer[PATH_MAX]; | ||
| 240 | ✗ | script_rules_t script_rules = {NULL, NULL, NULL}; | |
| 241 | |||
| 242 | ✗ | memset(script_rule_file_buffer, 0, PATH_MAX); | |
| 243 | ✗ | size_t buf_left = PATH_MAX; | |
| 244 | ✗ | i360_strnadd(script_rule_file_buffer, LIST_CONF_PATH, strlen(LIST_CONF_PATH), PATH_MAX, &buf_left); | |
| 245 | ✗ | i360_strnadd(script_rule_file_buffer, *script_rule_file, strlen(*script_rule_file), PATH_MAX, &buf_left); | |
| 246 | ✗ | i360_strnadd(script_rule_file_buffer, ".sruledump", strlen(".sruledump"), PATH_MAX, &buf_left); | |
| 247 | ✗ | script_rules.storage = brp_restore_mmap_dump(script_rule_file_buffer, &script_rules.storage_free_cb); | |
| 248 | |||
| 249 | ✗ | if (script_rules.storage) | |
| 250 | ✗ | script_rules.rules = (rules_list *)brp_get_pointer_with_number(script_rules.storage, 0); | |
| 251 | |||
| 252 | ✗ | if (script_rules.rules) { | |
| 253 | ✗ | script_rules_t *sr = malloc(sizeof(script_rules_t)); | |
| 254 | ✗ | if (sr) { | |
| 255 | ✗ | *sr = script_rules; | |
| 256 | ✗ | map_set(&scripts_rules_map, file_name, sr); | |
| 257 | ✗ | return (*script_current_rules = sr); | |
| 258 | } | ||
| 259 | } | ||
| 260 | |||
| 261 | ✗ | if (script_rules.storage && script_rules.storage_free_cb) | |
| 262 | ✗ | script_rules.storage_free_cb(script_rules.storage); | |
| 263 | |||
| 264 | ✗ | memset(script_rule_file_buffer, 0, PATH_MAX); | |
| 265 | ✗ | buf_left = PATH_MAX; | |
| 266 | ✗ | i360_strnadd(script_rule_file_buffer, LIST_CONF_PATH, strlen(LIST_CONF_PATH), PATH_MAX, &buf_left); | |
| 267 | ✗ | i360_strnadd(script_rule_file_buffer, *script_rule_file, strlen(*script_rule_file), PATH_MAX, &buf_left); | |
| 268 | ✗ | i360_strnadd(script_rule_file_buffer, ".srule", strlen(".srule"), PATH_MAX, &buf_left); | |
| 269 | ✗ | script_rules.storage = brp_restore_dump(script_rule_file_buffer, SECURITY_BYTE); | |
| 270 | ✗ | script_rules.storage_free_cb = &free; | |
| 271 | |||
| 272 | ✗ | if (script_rules.storage) | |
| 273 | ✗ | script_rules.rules = (rules_list *)brp_get_pointer_with_number(script_rules.storage, 0); | |
| 274 | |||
| 275 | ✗ | if (script_rules.rules) { | |
| 276 | ✗ | script_rules_t *sr = malloc(sizeof(script_rules_t)); | |
| 277 | ✗ | if (sr) { | |
| 278 | ✗ | *sr = script_rules; | |
| 279 | ✗ | map_set(&scripts_rules_map, file_name, sr); | |
| 280 | ✗ | return (*script_current_rules = sr); | |
| 281 | } | ||
| 282 | } | ||
| 283 | |||
| 284 | ✗ | if (script_rules.storage) | |
| 285 | ✗ | script_rules.storage_free_cb(script_rules.storage); | |
| 286 | |||
| 287 | ✗ | map_set(&scripts_rules_map, file_name, (*script_current_rules = FAKE_SCRIPT_RULES)); | |
| 288 | ✗ | return NULL; | |
| 289 | } | ||
| 290 | |||
| 291 | #define G_MAX_TEST_RECOGNIZER_SUB_ID 10 | ||
| 292 | #ifndef DEEP_PHP_TESTS | ||
| 293 | #define G_TEST_FLAG "/usr/share/i360-php-opts/test_enabled" | ||
| 294 | #else | ||
| 295 | #define G_TEST_FLAG "test_enabled" | ||
| 296 | #endif | ||
| 297 | static int test_env_enabled = 0; | ||
| 298 | |||
| 299 | #define RGX_MAX_DOCROOT_LEN 4096 | ||
| 300 | |||
| 301 | struct timespec stat_rgx_time = {0, 0}; | ||
| 302 | static pcre *re_stat_rgx = NULL; | ||
| 303 | static char current_doc_root_rgx[RGX_MAX_DOCROOT_LEN + 1] = {0}; | ||
| 304 | static int doc_root_len = 0; | ||
| 305 | static int exclude_list_opt = 1; | ||
| 306 | |||
| 307 | 1 | void i360_set_exclude_list_opt(int value) { | |
| 308 | 1 | exclude_list_opt = value; | |
| 309 | 1 | } | |
| 310 | |||
| 311 | ✗ | static int i360_compare_timespec_queue(struct timespec *t1, struct timespec *t2) { | |
| 312 | long int v1, v2; | ||
| 313 | ✗ | v1 = t1->tv_nsec + t1->tv_sec * 1000000000; | |
| 314 | ✗ | v2 = t2->tv_nsec + t2->tv_sec * 1000000000; | |
| 315 | ✗ | if (v1 > v2) | |
| 316 | ✗ | return 1; | |
| 317 | ✗ | else if (v1 < v2) | |
| 318 | ✗ | return -1; | |
| 319 | else | ||
| 320 | ✗ | return 0; | |
| 321 | } | ||
| 322 | |||
| 323 | 1 | void i360_load_exclude_list(char *document_root) { | |
| 324 | struct stat st; | ||
| 325 |
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1 | if (document_root) { |
| 326 | 1 | strncpy(current_doc_root_rgx, document_root, RGX_MAX_DOCROOT_LEN); | |
| 327 | } | ||
| 328 | else { | ||
| 329 | ✗ | strncpy(current_doc_root_rgx, "/", RGX_MAX_DOCROOT_LEN); | |
| 330 | } | ||
| 331 | 1 | doc_root_len = strlen(current_doc_root_rgx); | |
| 332 |
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1 | if (stat(ABS_PATH_RGX, &st) == 0) { |
| 333 | ✗ | if (st.st_size > 0) { | |
| 334 | ✗ | if (i360_compare_timespec_queue(&st.st_mtim, &stat_rgx_time) > 0) { | |
| 335 | ✗ | stat_rgx_time = st.st_mtim; | |
| 336 | ✗ | if (re_stat_rgx) { | |
| 337 | ✗ | free(re_stat_rgx); | |
| 338 | ✗ | re_stat_rgx = NULL; | |
| 339 | } | ||
| 340 | ✗ | re_stat_rgx = calloc(st.st_size, 1); | |
| 341 | ✗ | if (re_stat_rgx) { | |
| 342 | ✗ | FILE *fp = fopen(ABS_PATH_RGX, "rb"); | |
| 343 | ✗ | if (fp) { | |
| 344 | ✗ | if (!fread(re_stat_rgx, st.st_size, 1, fp)) { | |
| 345 | ✗ | free(re_stat_rgx); | |
| 346 | ✗ | re_stat_rgx = NULL; | |
| 347 | } | ||
| 348 | ✗ | fclose(fp); | |
| 349 | } | ||
| 350 | else { | ||
| 351 | ✗ | free(re_stat_rgx); | |
| 352 | ✗ | re_stat_rgx = NULL; | |
| 353 | } | ||
| 354 | } | ||
| 355 | } | ||
| 356 | } | ||
| 357 | } | ||
| 358 | 1 | } | |
| 359 | |||
| 360 | 1 | void i360_free_exclude_list() { | |
| 361 |
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1 | if (re_stat_rgx) { |
| 362 | ✗ | free(re_stat_rgx); | |
| 363 | ✗ | re_stat_rgx = NULL; | |
| 364 | } | ||
| 365 | 1 | } | |
| 366 | |||
| 367 | 3 | void i360_set_malware_directory_config(char *path) { | |
| 368 | 3 | malware_directory_config = path; | |
| 369 |
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3 | if (malware_directory_config_fd >= 0) { |
| 370 | ✗ | close(malware_directory_config_fd); | |
| 371 | } | ||
| 372 |
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3 | if (!path) { |
| 373 | 1 | malware_directory_config_fd = -1; | |
| 374 | 1 | return; | |
| 375 | } | ||
| 376 |
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2 | if (path[0]) { |
| 377 | 2 | malware_directory_config_fd = open(path, O_DIRECTORY); | |
| 378 | //#ifndef NDEBUG | ||
| 379 | // if (malware_directory_config_fd < 0) { | ||
| 380 | // perror("malware_dir_path error"); | ||
| 381 | // } | ||
| 382 | //#endif | ||
| 383 | } | ||
| 384 | } | ||
| 385 | |||
| 386 | 1 | void i360_check_test_enabled() { | |
| 387 | #ifndef UNIT_TESTING | ||
| 388 | test_env_enabled = 0; | ||
| 389 | #else | ||
| 390 | 1 | test_env_enabled = 1; | |
| 391 | #endif | ||
| 392 | 1 | } | |
| 393 | |||
| 394 | 1 | int i360_is_test_env_enabled() { | |
| 395 | 1 | return test_env_enabled; | |
| 396 | } | ||
| 397 | |||
| 398 | #define TMPBUFF 15000 | ||
| 399 | |||
| 400 | /* When reading whitelist rules information from file, it's going to be | ||
| 401 | ** one-fread operation. File content will be read directly to either | ||
| 402 | ** static_wl_buffer (fsize < WL_STATIC_BUFFER_SIZE) or dynamically | ||
| 403 | ** allocated buffer (fsize >= WL_STATIC_BUFFER_SIZE). | ||
| 404 | ** | ||
| 405 | ** NOTE: it makes sense to have WL_STATIC_BUFFER_SIZE equal to | ||
| 406 | *4+sizeof(wl_item)*N | ||
| 407 | */ | ||
| 408 | #define WL_STATIC_BUFFER_SIZE (size_t)100000 | ||
| 409 | |||
| 410 | const char *const STR_WL_INCOMPATIBLE = "error: incompatible rules whitelist file %lu\n"; | ||
| 411 | const char *const STR_WL_CORRUPTED = "warning: rules whitelist file might be corrupted\n"; | ||
| 412 | |||
| 413 | static unsigned char static_wl_buffer[WL_STATIC_BUFFER_SIZE]; | ||
| 414 | static unsigned char *wl_buffer = static_wl_buffer; | ||
| 415 | static unsigned int wl_buffer_size = WL_STATIC_BUFFER_SIZE; | ||
| 416 | |||
| 417 | /* When php file being processed is changed (cur_php_fname), we also | ||
| 418 | ** update whitelist rules files which are associated (see set_cur_php_fname) | ||
| 419 | */ | ||
| 420 | static char cur_php_fname[PATH_MAX] = ""; | ||
| 421 | static size_t cur_php_fname_len = 0; | ||
| 422 | static intptr_t cur_php_uid = 0; | ||
| 423 | static char *cur_wl_rules = NULL; | ||
| 424 | |||
| 425 | /* How whitelist rules data is being stored in memory may depend | ||
| 426 | ** on whitelist format version | ||
| 427 | */ | ||
| 428 | static unsigned int wl_version = WHITELIST_FILE_VER3; | ||
| 429 | |||
| 430 | /* If in whitelist, there is an item with no file name is | ||
| 431 | ** specified (empty string), all the appropriate rules are in | ||
| 432 | ** power for all the files. | ||
| 433 | */ | ||
| 434 | static char *super_wl_rules = NULL; | ||
| 435 | |||
| 436 | 4 | static inline int i360_isset_cur_php_fname() { | |
| 437 | 4 | return cur_php_fname[0]; | |
| 438 | } | ||
| 439 | 6 | static inline void i360_reset_cur_php_fname() { | |
| 440 | 6 | cur_php_fname[0] = (char)0; | |
| 441 | 6 | cur_php_fname_len = 0; | |
| 442 | 6 | cur_php_uid = 0; | |
| 443 | 6 | } | |
| 444 | |||
| 445 | 35 | void i360_extract_correct_php_script_name(char *cur_php_fname) { | |
| 446 | 35 | char *dot = strchr(cur_php_fname, ':'); | |
| 447 | |||
| 448 |
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35 | if (dot) { |
| 449 | 10 | *dot = 0; | |
| 450 | 10 | int string_len = strlen(cur_php_fname) + 1; | |
| 451 | 10 | int i = string_len - 2, j = i; | |
| 452 | 10 | char *ptr = cur_php_fname; | |
| 453 | 10 | dot = ptr + i; | |
| 454 |
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64 | while (i >= 0) { |
| 455 |
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62 | if (!(ptr[i] == '(' || ptr[i] == ')' || (ptr[i] >= '0' && ptr[i] <= '9') || ptr[i] == ' ')) { |
| 456 |
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8 | if ((i + 1) <= j) { |
| 457 |
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8 | if (ptr[i + 1] == '(') { |
| 458 | 8 | ptr[i + 1] = 0; | |
| 459 | } | ||
| 460 | } | ||
| 461 | 8 | break; | |
| 462 | } | ||
| 463 | 54 | i--; | |
| 464 | } | ||
| 465 | } | ||
| 466 | 35 | } | |
| 467 | |||
| 468 | 26 | void i360_set_cur_php_fname(char *fname, map_void_t *whitelist_map, int compile) { | |
| 469 |
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26 | if (fname && fname[0] == '[') { |
| 470 |
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1 | if (compile && i360_isset_cur_php_fname()) { |
| 471 | 1 | i360_reset_cur_php_fname(); | |
| 472 | 1 | cur_wl_rules = NULL; | |
| 473 | } | ||
| 474 | 1 | return; | |
| 475 | } | ||
| 476 | |||
| 477 |
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25 | if (!compile && i360_isset_cur_php_fname()) { |
| 478 |
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1 | if (fname && !strcmp(cur_php_fname, fname)) { |
| 479 | ✗ | return; | |
| 480 | } | ||
| 481 | } | ||
| 482 | |||
| 483 |
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|
25 | if (fname) { |
| 484 | 23 | cur_php_uid = (intptr_t)fname; | |
| 485 | /* using strncpy safely to avoid -Wstringop-truncation (GCC 8) */ | ||
| 486 | 23 | memcpy(cur_php_fname, fname, strlen(fname) + 1); | |
| 487 | |||
| 488 | 23 | i360_extract_correct_php_script_name(cur_php_fname); | |
| 489 | |||
| 490 | 23 | cur_php_fname_len = strnlen(cur_php_fname, PATH_MAX); | |
| 491 |
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23 | void **ptr = map_get((whitelist_map ? whitelist_map : &parms_data_g_ptr->whitelist_map), cur_php_fname); |
| 492 |
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23 | if (ptr) { |
| 493 | 10 | cur_wl_rules = *ptr; | |
| 494 | } | ||
| 495 | else { | ||
| 496 | 13 | cur_wl_rules = NULL; | |
| 497 | } | ||
| 498 | } | ||
| 499 | else { | ||
| 500 | 2 | i360_reset_cur_php_fname(); | |
| 501 | 2 | cur_wl_rules = NULL; | |
| 502 | } | ||
| 503 | } | ||
| 504 | |||
| 505 | 3 | void i360_free_cur_php_fname() { | |
| 506 | 3 | i360_reset_cur_php_fname(); | |
| 507 | 3 | } | |
| 508 | |||
| 509 | 1 | char *i360_get_cur_php_fname() { | |
| 510 | 1 | return cur_php_fname; | |
| 511 | } | ||
| 512 | |||
| 513 | 192889 | static int i360_wl_item_comp(const void *elem1, const void *elem2) { | |
| 514 | 192889 | const unsigned int f = *((unsigned int *)elem1); | |
| 515 | 192889 | const unsigned int s = *((unsigned int *)elem2); | |
| 516 |
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192889 | if (f < s) |
| 517 | 179224 | return 1; | |
| 518 |
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13665 | if (f > s) |
| 519 | 5889 | return -1; | |
| 520 | 7776 | return 0; | |
| 521 | } | ||
| 522 | |||
| 523 | 45 | void i360_free_queue() { | |
| 524 | 45 | i360_reset_script_rules(); | |
| 525 | 45 | } | |
| 526 | |||
| 527 | 59 | void i360_read_internal_config(char *path_to_config) { | |
| 528 | 59 | map_init(&config_data); | |
| 529 | 59 | FILE *cfg = fopen(path_to_config, "r"); | |
| 530 |
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59 | if (cfg) { |
| 531 | 59 | char buffer[TMPBUFF * 2] = {0}; | |
| 532 |
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324 | while (fgets(buffer, sizeof(buffer), cfg) != NULL) { |
| 533 | 265 | char *key = buffer; | |
| 534 | 265 | char *value = buffer; | |
| 535 | 265 | int max_length = TMPBUFF * 2; | |
| 536 |
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3341 | while (*value != '=' && (max_length > 1) && *value != 0 && *value != '\n') { |
| 537 | 3076 | value++; | |
| 538 | 3076 | max_length--; | |
| 539 | } | ||
| 540 |
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265 | if (*value == '=') { |
| 541 | 261 | *value = '\0'; | |
| 542 | 261 | value++; | |
| 543 |
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261 | if (max_length > 0) { |
| 544 | 261 | char *trim_key = i360_my_strtrim(key); | |
| 545 | 261 | char *trim_value = i360_my_strtrim(value); | |
| 546 |
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261 | if (trim_key && trim_value) { |
| 547 | 261 | char *check_exists = (char *)map_get(&config_data, trim_key); | |
| 548 |
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261 | if (check_exists) { |
| 549 | 6 | map_remove(&config_data, trim_key); | |
| 550 | } | ||
| 551 | 261 | map_set_(&(config_data).base, trim_key, trim_value, strlen(trim_value) + 1); | |
| 552 | } | ||
| 553 |
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261 | if (trim_key) |
| 554 | 261 | free(trim_key); | |
| 555 |
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261 | if (trim_value) |
| 556 | 261 | free(trim_value); | |
| 557 | } | ||
| 558 | } | ||
| 559 | 265 | memset(buffer, 0, TMPBUFF * 2); | |
| 560 | } | ||
| 561 | 59 | fclose(cfg); | |
| 562 | } | ||
| 563 | 59 | } | |
| 564 | |||
| 565 | 60 | void i360_free_internal_config() { | |
| 566 | 60 | map_str_t map_null = map_static_init(0); | |
| 567 |
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60 | if (memcmp(&config_data, &map_null, sizeof(config_data))) { |
| 568 | 59 | map_deinit(&config_data); | |
| 569 | 59 | memset(&config_data, 0, sizeof(config_data)); | |
| 570 | } | ||
| 571 | 60 | } | |
| 572 | |||
| 573 | 27 | char *i360_get_config_key(char *key_name) { | |
| 574 | 27 | return (char *)map_get(&config_data, key_name); | |
| 575 | } | ||
| 576 | |||
| 577 | ✗ | char *i360_getenv(const char *name, const char *default_value) { | |
| 578 | ✗ | if (!name || !*name) | |
| 579 | ✗ | return NULL; | |
| 580 | ✗ | char *ret = getenv(name); | |
| 581 | // we expect ret to be alphanumeric or _- and end up with a null byte | ||
| 582 | ✗ | if (ret && *ret) { | |
| 583 | ✗ | int is_valid = 1; | |
| 584 | const char *p; | ||
| 585 | ✗ | for (p = ret; *p; p++) { | |
| 586 | ✗ | if (!isalnum((unsigned char)*p) && *p != '_' && *p != '-') { | |
| 587 | ✗ | is_valid = 0; | |
| 588 | ✗ | break; | |
| 589 | } | ||
| 590 | } | ||
| 591 | ✗ | if (is_valid) { | |
| 592 | ✗ | return i360_inner_strdup(ret); | |
| 593 | } | ||
| 594 | } | ||
| 595 | ✗ | if (!default_value || !*default_value) { | |
| 596 | ✗ | return NULL; | |
| 597 | } | ||
| 598 | ✗ | return i360_inner_strdup((char *)default_value); | |
| 599 | } | ||
| 600 | |||
| 601 | // params | ||
| 602 | |||
| 603 | 10 | int i360_add_func_param_value_add(params_list *parms, char *param, char *value, int length, | |
| 604 | __attribute__((unused)) int add_param) { | ||
| 605 | 10 | int need_length = (length > G_MAX_PARAM_LENGTH ? G_MAX_PARAM_LENGTH : length); | |
| 606 | 10 | params_item *new = calloc(1, sizeof(params_item)); | |
| 607 |
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10 | if (!new) { |
| 608 | ✗ | parms->err = 1; | |
| 609 | ✗ | return -1; | |
| 610 | } | ||
| 611 |
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10 | new->param = i360_inner_strndup(param ? param : "", need_length); |
| 612 | 10 | new->param_len = need_length; | |
| 613 |
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10 | if (!new->param) { |
| 614 | ✗ | free(new); | |
| 615 | ✗ | parms->err = 1; | |
| 616 | ✗ | return -1; | |
| 617 | } | ||
| 618 |
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10 | if (value) { |
| 619 | ✗ | new->value = i360_inner_strdup(value); | |
| 620 | ✗ | if (!new->value) { | |
| 621 | ✗ | free(new); | |
| 622 | ✗ | parms->err = 1; | |
| 623 | ✗ | return -1; | |
| 624 | } | ||
| 625 | } | ||
| 626 |
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10 | if (parms->head) { |
| 627 | 3 | parms->tail->next = new; | |
| 628 | 3 | new->number = parms->tail->number + 1; | |
| 629 | 3 | parms->length++; | |
| 630 | 3 | parms->tail = new; | |
| 631 | } | ||
| 632 | else { | ||
| 633 | 7 | parms->head = new; | |
| 634 | 7 | parms->tail = new; | |
| 635 | 7 | parms->length = 1; | |
| 636 | 7 | new->number = 1; | |
| 637 | } | ||
| 638 | 10 | return 0; | |
| 639 | } | ||
| 640 | |||
| 641 | 10 | int i360_add_func_param_value(params_list *parms, char *param, __attribute__((unused)) char *value, int length) { | |
| 642 | 10 | return i360_add_func_param_value_add(parms, param, NULL, length, 0); | |
| 643 | } | ||
| 644 | |||
| 645 | 9 | int i360_add_func_param(params_list *parms, char *param, int length) { | |
| 646 | 9 | return i360_add_func_param_value(parms, param, NULL, length); | |
| 647 | } | ||
| 648 | |||
| 649 | 25 | void i360_free_func_params(params_list *parms) { | |
| 650 |
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25 | if (parms->head) { |
| 651 | 7 | params_item *item = parms->head; | |
| 652 |
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17 | while (item) { |
| 653 | 10 | params_item *item_del = item; | |
| 654 | 10 | item = item->next; | |
| 655 |
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10 | if (item_del->param) |
| 656 | 10 | free(item_del->param); | |
| 657 |
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10 | if (item_del->value) { |
| 658 | ✗ | free(item_del->value); | |
| 659 | } | ||
| 660 | 10 | free(item_del); | |
| 661 | } | ||
| 662 | 7 | parms->head = NULL; | |
| 663 | 7 | parms->tail = NULL; | |
| 664 | 7 | parms->length = 0; | |
| 665 | } | ||
| 666 | 25 | } | |
| 667 | |||
| 668 | // New params | ||
| 669 | |||
| 670 | static int i360_params_numb = 0; | ||
| 671 | |||
| 672 | #define PROACTIVE_MAX_PARAMS_TO_SAVE 10 | ||
| 673 | #define PROACTIVE_MAX_PARAMS_FUNC_NAME PROACTIVE_MAX_PARAMS_TO_SAVE + 1 | ||
| 674 | #define PROACTIVE_MAX_PARAMS_PARAM_PRE 8 | ||
| 675 | #define PROACTIVE_MAX_PARAMS_FUNC_PRE 10 | ||
| 676 | |||
| 677 | static char i360_params_static[PROACTIVE_MAX_PARAMS_FUNC_NAME][G_MAX_PARAM_LENGTH + PROACTIVE_MAX_PARAMS_FUNC_PRE + 1] = | ||
| 678 | {"PHPFP_A=", "PHPFP_B=", "PHPFP_C=", "PHPFP_D=", "PHPFP_E=", "PHPFP_F=", | ||
| 679 | "PHPFP_G=", "PHPFP_H=", "PHPFP_I=", "PHPFP_J=", "PHPFP_NAM="}; | ||
| 680 | |||
| 681 | static int i360_params_static_length[PROACTIVE_MAX_PARAMS_FUNC_NAME] = {0}; | ||
| 682 | |||
| 683 | 47 | int i360_add_func_param_value_add_new(const char *param, size_t length) { | |
| 684 |
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47 | if (i360_params_numb == PROACTIVE_MAX_PARAMS_TO_SAVE) |
| 685 | 2 | return -1; | |
| 686 |
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45 | size_t need_length = (length > G_MAX_PARAM_LENGTH ? (G_MAX_PARAM_LENGTH - 1) : length); |
| 687 | 45 | char *str_ptr = i360_params_static[i360_params_numb]; | |
| 688 | 45 | str_ptr += PROACTIVE_MAX_PARAMS_PARAM_PRE; | |
| 689 | 45 | strncpy(str_ptr, param, need_length + 1); | |
| 690 | 45 | i360_params_static_length[i360_params_numb] = need_length; | |
| 691 | 45 | i360_params_numb++; | |
| 692 | 45 | return 0; | |
| 693 | } | ||
| 694 | |||
| 695 | 33 | int i360_add_func_param_value_new(const char *param, size_t length) { | |
| 696 | 33 | return i360_add_func_param_value_add_new(param, length); | |
| 697 | } | ||
| 698 | |||
| 699 | 33 | int i360_add_func_param_new(const char *param, size_t length) { | |
| 700 | 33 | return i360_add_func_param_value_new(param, length); | |
| 701 | } | ||
| 702 | |||
| 703 | 29 | void i360_free_func_params_new() { | |
| 704 | // When we add a parameter, we don't append it, but rather strncpy it fresh | ||
| 705 | // so we don't need to clean up anything except the current number of parameters | ||
| 706 | // This is one of the hottest functions, so it must make sense to optimize it | ||
| 707 | 29 | i360_params_numb = 0; | |
| 708 | 29 | } | |
| 709 | |||
| 710 | 27 | char *i360_get_params_new(int *index, int *len) { | |
| 711 | 27 | char *ptr = i360_get_params_index_new(index, len); | |
| 712 |
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27 | if (*index != -1) { |
| 713 | 20 | *index = *index + 1; | |
| 714 | } | ||
| 715 | 27 | return ptr; | |
| 716 | } | ||
| 717 | |||
| 718 | 42 | char *i360_get_params_index_new(int *index, int *len) { | |
| 719 |
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42 | if (*index >= i360_params_numb) { |
| 720 | 8 | *index = -1; | |
| 721 | 8 | *len = 0; | |
| 722 | 8 | return NULL; | |
| 723 | } | ||
| 724 |
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34 | if (*index >= PROACTIVE_MAX_PARAMS_TO_SAVE) { |
| 725 | ✗ | *index = -1; | |
| 726 | ✗ | *len = 0; | |
| 727 | ✗ | return NULL; | |
| 728 | } | ||
| 729 | 34 | *len = i360_params_static_length[*index]; | |
| 730 | 34 | char *ptr = i360_params_static[*index]; | |
| 731 | 34 | ptr += PROACTIVE_MAX_PARAMS_PARAM_PRE; | |
| 732 | 34 | return ptr; | |
| 733 | } | ||
| 734 | |||
| 735 | 36 | int i360_get_params_new_numb() { | |
| 736 | 36 | return i360_params_numb; | |
| 737 | } | ||
| 738 | |||
| 739 | 2 | char *i360_get_params_new_raw(int index) { | |
| 740 |
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2 | if (index >= PROACTIVE_MAX_PARAMS_TO_SAVE || index >= i360_params_numb) { |
| 741 | 1 | return NULL; | |
| 742 | } | ||
| 743 | 1 | return i360_params_static[index]; | |
| 744 | } | ||
| 745 | |||
| 746 | 18 | char *i360_is_function_hooked(const char *name, char *buffer) { | |
| 747 | 18 | char *res = (char *)map_get(funcs, name); | |
| 748 |
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18 | if (res) { |
| 749 | 17 | buffer[0] = res[0]; | |
| 750 | 17 | buffer[1] = res[1]; | |
| 751 | 17 | buffer[2] = res[2]; | |
| 752 | 17 | return buffer; | |
| 753 | } | ||
| 754 | 1 | return NULL; | |
| 755 | } | ||
| 756 | |||
| 757 | 14 | int i360_get_params_flags(char *func_info) { | |
| 758 | 14 | return (int)(func_info[2] - '0'); | |
| 759 | } | ||
| 760 | |||
| 761 | 2 | static int i360_fast_bad_syscall_detection_files(__attribute__((unused)) params_list *params, file_value *values) { | |
| 762 |
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2 | if (!i360_get_params_new_numb() || !values) |
| 763 | 1 | return 0; | |
| 764 | 1 | int index = 0; | |
| 765 | 1 | int len = 0; | |
| 766 | 1 | char *prm = i360_get_params_new(&index, &len); | |
| 767 |
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2 | while (index != -1) { |
| 768 |
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2 | if (len > G_MIN_HANDLE_STRING_SIZE_RCE) { |
| 769 | 2 | file_value *values_dup = values; | |
| 770 |
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9 | while (values_dup) { |
| 771 |
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8 | if (values_dup->status > 0) { |
| 772 | int pcreExecRet; | ||
| 773 | int subStrVec[30]; | ||
| 774 | |||
| 775 | 8 | pcreExecRet = pcre_exec(values_dup->re, values_dup->reE, prm, len, 0, PCRE_ANCHORED | PCRE_NO_START_OPTIMIZE, | |
| 776 | subStrVec, 30); | ||
| 777 | |||
| 778 |
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8 | if (pcreExecRet > 0) { |
| 779 |
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1 | if (values_dup->type == 1) { |
| 780 | ✗ | i360_set_logger_rce(); | |
| 781 | } | ||
| 782 | 1 | return 1; | |
| 783 | } | ||
| 784 | } | ||
| 785 | 7 | values_dup = values_dup->next; | |
| 786 | } | ||
| 787 | } | ||
| 788 | 1 | prm = i360_get_params_new(&index, &len); | |
| 789 | } | ||
| 790 | ✗ | return 0; | |
| 791 | } | ||
| 792 | |||
| 793 | #define MAX_DOMAIN_NAME 256 | ||
| 794 | |||
| 795 | 9 | static void i360_extract_domain_name(char *param, char *buffer, int buffer_len) { | |
| 796 | 9 | buffer_len = buffer_len - 1; | |
| 797 | 9 | int p_len = strlen(param); | |
| 798 |
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|
9 | if (!p_len) { |
| 799 | ✗ | strncpy(buffer, "", buffer_len); | |
| 800 | ✗ | return; | |
| 801 | } | ||
| 802 | 9 | char *ptr = param; | |
| 803 |
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|
9 | if (p_len < 4) { |
| 804 | ✗ | strncpy(buffer, param, buffer_len); | |
| 805 | } | ||
| 806 | else { | ||
| 807 | 9 | ptr = strstr(param, "://"); | |
| 808 |
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|
9 | if (!ptr) { //(ptr && param[0] == 'h' && param[1] == 't' && param[2] == 't' && param[3] == 'p')) { |
| 809 | 6 | ptr = param; | |
| 810 | } | ||
| 811 | else { | ||
| 812 | 3 | ptr += 3; | |
| 813 | } | ||
| 814 | 9 | int www_len = p_len - (ptr - param); | |
| 815 |
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|
9 | if (www_len < 4) { |
| 816 | ✗ | strncpy(buffer, ptr, buffer_len); | |
| 817 | } | ||
| 818 | else { | ||
| 819 |
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|
9 | if (ptr[0] == 'w' && ptr[1] == 'w' && ptr[2] == 'w' && ptr[3] == '.') { |
| 820 | 2 | ptr += 4; | |
| 821 | } | ||
| 822 | 9 | int copy_len = strcspn(ptr, ":/"); | |
| 823 | 9 | copy_len = copy_len > buffer_len ? buffer_len : copy_len; | |
| 824 | 9 | memcpy(buffer, ptr, copy_len); | |
| 825 | 9 | buffer[copy_len] = 0; | |
| 826 | } | ||
| 827 | } | ||
| 828 | 9 | return; | |
| 829 | } | ||
| 830 | |||
| 831 | 11 | static int i360_fast_bad_syscall_detection_by_map_domain(__attribute__((unused)) params_list *params, map_int_t *m) { | |
| 832 | 11 | char domain[MAX_DOMAIN_NAME] = {0}; | |
| 833 |
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|
11 | if (!i360_get_params_new_numb() || !m) |
| 834 | 2 | return 0; | |
| 835 | 9 | int index = 0; | |
| 836 | 9 | int len = 0; | |
| 837 | 9 | char *prm = i360_get_params_new(&index, &len); | |
| 838 |
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|
19 | while (index != -1) { |
| 839 |
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|
13 | if (len > G_MIN_HANDLE_STRING_SIZE) { |
| 840 | 9 | i360_extract_domain_name(prm, domain, MAX_DOMAIN_NAME); | |
| 841 | 9 | int *val = map_get(m, domain); | |
| 842 |
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|
9 | if (val) { |
| 843 | 3 | return 1; | |
| 844 | } | ||
| 845 | } | ||
| 846 | 10 | prm = i360_get_params_new(&index, &len); | |
| 847 | } | ||
| 848 | 6 | return 0; | |
| 849 | } | ||
| 850 | |||
| 851 | ✗ | static int i360_fast_bad_syscall_detection_by_map_reverse(struct reversed_ordered_set_t *m) { | |
| 852 | ✗ | if (!i360_get_params_new_numb() || !m) | |
| 853 | ✗ | return 0; | |
| 854 | ✗ | int index = 0; | |
| 855 | ✗ | int len = 0; | |
| 856 | ✗ | char *prm = i360_get_params_new(&index, &len); | |
| 857 | ✗ | while (index != -1) { | |
| 858 | ✗ | if (len > G_MIN_HANDLE_STRING_SIZE) { | |
| 859 | ✗ | int val = i360_rev_ordered_find_partial(m, prm, len); | |
| 860 | ✗ | if (val >= 0) { | |
| 861 | ✗ | return 1; | |
| 862 | } | ||
| 863 | } | ||
| 864 | ✗ | prm = i360_get_params_new(&index, &len); | |
| 865 | } | ||
| 866 | ✗ | return 0; | |
| 867 | } | ||
| 868 | |||
| 869 | 13 | void i360_param_check(char *func_info, params_list *params, int flags) { | |
| 870 |
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|
13 | if (flags) { |
| 871 |
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|
13 | if (flags & rce_patterns_list_mask) { |
| 872 |
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|
2 | if (i360_fast_bad_syscall_detection_files(params, parms_data_g_ptr->rce_patterns_list)) { |
| 873 | 1 | func_info[0] = (char)toupper((unsigned char)func_info[0]); | |
| 874 | 1 | return; | |
| 875 | } | ||
| 876 | } | ||
| 877 |
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|
12 | if (flags & black_urls_list_mask) { |
| 878 |
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|
11 | if (i360_fast_bad_syscall_detection_by_map_domain(params, urls_list)) { |
| 879 | 3 | func_info[0] = (char)toupper((unsigned char)func_info[0]); | |
| 880 | 3 | return; | |
| 881 | } | ||
| 882 | } | ||
| 883 | } | ||
| 884 | } | ||
| 885 | |||
| 886 | 59 | void i360_free_global_copy() { | |
| 887 |
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|
59 | if (parms_data_g_ptr) { |
| 888 | 58 | i360_free_rules_whitelist(&parms_data_g_ptr->whitelist_map); | |
| 889 | 58 | map_void_t null_map = map_static_init(0); | |
| 890 |
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|
58 | if (memcmp(&parms_data_g_ptr->whitelist_map, &null_map, sizeof(map_void_t))) { |
| 891 | ✗ | map_deinit(&parms_data_g_ptr->whitelist_map); | |
| 892 | } | ||
| 893 | |||
| 894 | 58 | memset(parms_data_g_ptr, 0, sizeof(*parms_data_g_ptr)); | |
| 895 | 58 | parms_data_g_ptr = NULL; | |
| 896 | } | ||
| 897 | |||
| 898 |
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|
59 | if (storage) { |
| 899 | 53 | storage_free_cb(storage); | |
| 900 | 53 | storage = NULL; | |
| 901 | } | ||
| 902 | |||
| 903 | 59 | i360_free_script_rules(); | |
| 904 | 59 | i360_pd_database_deinit(); | |
| 905 | 59 | } | |
| 906 | |||
| 907 | 6227 | static void i360_dump_rules(int dump_fd, int is_empty_rulelist, const char *fname, unsigned int rules[], int len, | |
| 908 | int dump_zero_ruleid) { | ||
| 909 | #ifndef UNIT_TESTING | ||
| 910 | if (dump_fd < 0) | ||
| 911 | return; | ||
| 912 | |||
| 913 | if (is_empty_rulelist) { | ||
| 914 | dprintf(dump_fd, "\"%s\": []\n", fname); | ||
| 915 | } | ||
| 916 | else { | ||
| 917 | dprintf(dump_fd, "\"%s\":\n", fname); | ||
| 918 | |||
| 919 | size_t rules_ptr = (size_t)rules; | ||
| 920 | if (rules_ptr % sizeof(rules[0])) | ||
| 921 | dprintf(dump_fd, "# rules bad padding warning [%p]\n", rules); | ||
| 922 | else | ||
| 923 | dprintf(dump_fd, "# rules padding ok [%p]\n", rules); | ||
| 924 | |||
| 925 | int i; | ||
| 926 | for (i = 0; i < len; i++) | ||
| 927 | if (rules[i] || dump_zero_ruleid) | ||
| 928 | dprintf(dump_fd, "- %u\n", rules[i]); | ||
| 929 | } | ||
| 930 | #else | ||
| 931 | (void)dump_fd; | ||
| 932 | (void)is_empty_rulelist; | ||
| 933 | (void)fname; | ||
| 934 | (void)rules; | ||
| 935 | (void)len; | ||
| 936 | (void)dump_zero_ruleid; | ||
| 937 | #endif | ||
| 938 | 6227 | } | |
| 939 | |||
| 940 | #define WL_FILE_PREFIX_LEN 4 | ||
| 941 | #define WHITELIST_SUPER_RULE "" | ||
| 942 | |||
| 943 | 7 | static void i360_parse_whitelist_data_ver3(unsigned char *buffer, unsigned int buffer_size, map_void_t *map, | |
| 944 | int dump_fd) { | ||
| 945 | 7 | unsigned int num_wl_item = (buffer_size - sizeof(unsigned int)) / sizeof(whitelist_file_item); | |
| 946 | |||
| 947 |
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|
7 | if ((buffer_size - sizeof(unsigned int)) % sizeof(whitelist_file_item)) { |
| 948 | ✗ | return; | |
| 949 | } | ||
| 950 | |||
| 951 | 7 | whitelist_file_item *wl_item = (whitelist_file_item *)(((unsigned char *)buffer) + sizeof(unsigned int)); | |
| 952 | |||
| 953 |
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|
219 | while (num_wl_item--) { |
| 954 | // If no rules are listed, we whitelist all of them | ||
| 955 | 212 | unsigned char is_whitelist_rule = 0, is_empty_rulelist = !0; | |
| 956 | 212 | int i = 0; | |
| 957 |
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|
6996 | for (; i < MAX_WHITELIST_RULES; ++i) { |
| 958 |
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|
6784 | if (wl_item->rules[i]) { |
| 959 | 2874 | is_whitelist_rule = 1; | |
| 960 | 2874 | is_empty_rulelist = 0; | |
| 961 | } | ||
| 962 | } | ||
| 963 | |||
| 964 | 212 | i360_dump_rules(dump_fd, is_empty_rulelist, wl_item->fname, wl_item->rules, MAX_WHITELIST_RULES, | |
| 965 | /*dump_zero_ruleid*/ 0); | ||
| 966 | |||
| 967 |
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|
212 | if (!strcmp(wl_item->fname, WHITELIST_SUPER_RULE) && !super_wl_rules && is_whitelist_rule) { |
| 968 | 5 | super_wl_rules = (char *)wl_item->rules; | |
| 969 | 5 | qsort(super_wl_rules, MAX_WHITELIST_RULES, sizeof(unsigned int), i360_wl_item_comp); | |
| 970 | } | ||
| 971 | else { | ||
| 972 |
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|
207 | if (is_whitelist_rule) { |
| 973 | 207 | qsort(wl_item->rules, MAX_WHITELIST_RULES, sizeof(wl_item->rules[0]), i360_wl_item_comp); | |
| 974 | } | ||
| 975 | |||
| 976 | 207 | map_set(map, wl_item->fname, wl_item->rules); | |
| 977 | } | ||
| 978 | |||
| 979 | 212 | wl_item = (whitelist_file_item *)(((unsigned char *)wl_item) + sizeof(whitelist_file_item)); | |
| 980 | } | ||
| 981 | } | ||
| 982 | |||
| 983 | 9 | static void i360_parse_whitelist_data_ver4(unsigned char *buffer, unsigned int buffer_size, map_void_t *map, | |
| 984 | int dump_fd) { | ||
| 985 | 9 | unsigned char *buffer_end = buffer + buffer_size, *buf = buffer + sizeof(int), *ptr, *wl_fname; | |
| 986 | unsigned int fname_len, rules_num; | ||
| 987 | unsigned int *rules; | ||
| 988 | unsigned char is_whitelist_rule; | ||
| 989 | |||
| 990 | 6006 | while (1) { | |
| 991 | 6015 | ptr = buf; | |
| 992 | |||
| 993 | 6015 | buf += sizeof(unsigned short int); | |
| 994 |
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|
6015 | if (buf >= buffer_end) |
| 995 | ✗ | goto fmt_broken; | |
| 996 | |||
| 997 | 6015 | fname_len = *(unsigned short int *)ptr; | |
| 998 | 6015 | ptr = buf; | |
| 999 | |||
| 1000 | 6015 | buf += fname_len; | |
| 1001 |
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|
6015 | if (buf >= buffer_end) |
| 1002 | ✗ | goto fmt_broken; | |
| 1003 | |||
| 1004 | 6015 | wl_fname = ptr; | |
| 1005 | 6015 | ptr = buf; | |
| 1006 | |||
| 1007 | 6015 | buf += sizeof(unsigned char); | |
| 1008 |
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|
6015 | if (buf >= buffer_end) |
| 1009 | ✗ | goto fmt_broken; | |
| 1010 | |||
| 1011 | 6015 | rules_num = *(unsigned char *)ptr; | |
| 1012 | 6015 | rules = (unsigned int *)buf; | |
| 1013 | 6015 | buf += sizeof(int) * rules_num; | |
| 1014 | |||
| 1015 |
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|
6015 | if (buf > buffer_end) |
| 1016 | ✗ | goto fmt_broken; | |
| 1017 | |||
| 1018 | 6015 | is_whitelist_rule = 0; | |
| 1019 | 6015 | unsigned int i = 0; | |
| 1020 |
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|
90054 | for (; i < rules_num; ++i) { |
| 1021 |
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|
84039 | if (rules[i]) |
| 1022 | 84039 | is_whitelist_rule = 1; | |
| 1023 | } | ||
| 1024 | |||
| 1025 | 6015 | i360_dump_rules(dump_fd, /*is_empty_rulelist*/ (rules_num == 0), (const char *)wl_fname, rules, rules_num, | |
| 1026 | /*dump_zero_ruleid*/ !0); | ||
| 1027 | |||
| 1028 |
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|
6015 | if (!strcmp((const char *)wl_fname, WHITELIST_SUPER_RULE) && !super_wl_rules && is_whitelist_rule) { |
| 1029 | 5 | super_wl_rules = (char *)ptr; | |
| 1030 | 5 | qsort(rules, rules_num, sizeof(unsigned int), i360_wl_item_comp); | |
| 1031 | } | ||
| 1032 | else { | ||
| 1033 |
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|
6010 | if (is_whitelist_rule) { |
| 1034 | 6010 | qsort(rules, rules_num, sizeof(unsigned int), i360_wl_item_comp); | |
| 1035 | } | ||
| 1036 | |||
| 1037 | 6010 | map_set(map, (const char *)wl_fname, ptr); | |
| 1038 | } | ||
| 1039 | |||
| 1040 |
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|
6015 | if (buf == buffer_end) |
| 1041 | 9 | break; | |
| 1042 | } | ||
| 1043 | 9 | return; | |
| 1044 | |||
| 1045 | ✗ | fmt_broken: | |
| 1046 | ✗ | return; | |
| 1047 | } | ||
| 1048 | |||
| 1049 | 76 | void i360_read_whitelist_from_file(map_void_t *map, char *filename) { | |
| 1050 | 76 | i360_read_whitelist_from_file2(map, filename, /*dump_fd*/ -1); | |
| 1051 | 76 | } | |
| 1052 | |||
| 1053 | 76 | void i360_read_whitelist_from_file2(map_void_t *map, char *filename, int dump_fd) { | |
| 1054 | 76 | FILE *file = fopen(filename, "rb"); | |
| 1055 |
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|
76 | if (file) { |
| 1056 |
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|
16 | if (!(dump_fd < 0)) |
| 1057 | ✗ | dprintf(dump_fd, "---\n"); | |
| 1058 | struct stat statbuf; | ||
| 1059 |
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|
16 | if (stat(filename, &statbuf) == -1) { |
| 1060 | ✗ | fclose(file); | |
| 1061 | ✗ | return; | |
| 1062 | } | ||
| 1063 | |||
| 1064 | // wl_buffer is assumed to be NULL | ||
| 1065 |
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|
16 | if (statbuf.st_size >= wl_buffer_size) { |
| 1066 |
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|
8 | if (wl_buffer != static_wl_buffer) |
| 1067 | 1 | free(wl_buffer); | |
| 1068 | |||
| 1069 | 8 | wl_buffer = malloc(statbuf.st_size); | |
| 1070 | 8 | wl_buffer_size = statbuf.st_size; | |
| 1071 | } | ||
| 1072 | |||
| 1073 | // WL_STATIC_BUFFER_SIZE | ||
| 1074 |
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|
16 | if (fread(wl_buffer, 1, statbuf.st_size, file)) { |
| 1075 | 16 | wl_version = *(unsigned int *)wl_buffer; | |
| 1076 |
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|
16 | if (!(dump_fd < 0)) |
| 1077 | ✗ | dprintf(dump_fd, "# API_VER: %u\n", wl_version); | |
| 1078 |
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|
16 | if (wl_version == WHITELIST_FILE_VER3) { |
| 1079 | 7 | i360_parse_whitelist_data_ver3(wl_buffer, statbuf.st_size, map, dump_fd); | |
| 1080 | } | ||
| 1081 |
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|
9 | else if (wl_version == WHITELIST_FILE_VER4) { |
| 1082 | 9 | i360_parse_whitelist_data_ver4(wl_buffer, statbuf.st_size, map, dump_fd); | |
| 1083 | } | ||
| 1084 | } | ||
| 1085 | |||
| 1086 |
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|
16 | if (!(dump_fd < 0)) |
| 1087 | ✗ | dprintf(dump_fd, "...\n"); | |
| 1088 | 16 | fclose(file); | |
| 1089 | } | ||
| 1090 | } | ||
| 1091 | |||
| 1092 | 78 | void i360_free_rules_whitelist(map_void_t *map) { | |
| 1093 | 78 | map_void_t null_map = map_static_init(0); | |
| 1094 |
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|
78 | if (!map || (map && !memcmp(map, &null_map, sizeof(map_void_t)))) { |
| 1095 | 63 | return; | |
| 1096 | } | ||
| 1097 | 15 | char *key = NULL; | |
| 1098 | 15 | map_iter_t iter = map_iter(map); | |
| 1099 | |||
| 1100 |
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|
4231 | while ((key = (char *)map_next(map, &iter))) { |
| 1101 | 4216 | map_remove(map, key); | |
| 1102 | 4216 | iter = map_iter(map); | |
| 1103 | } | ||
| 1104 | |||
| 1105 | 15 | map_deinit(map); | |
| 1106 | |||
| 1107 | 15 | super_wl_rules = NULL; | |
| 1108 | 15 | memset(map, 0, sizeof(*map)); | |
| 1109 | } | ||
| 1110 | |||
| 1111 | 18 | void i360_free_wl_buffer() { | |
| 1112 |
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|
18 | if (static_wl_buffer != wl_buffer && wl_buffer) { |
| 1113 | 7 | free(wl_buffer); | |
| 1114 | 7 | wl_buffer = static_wl_buffer; | |
| 1115 | 7 | wl_buffer_size = WL_STATIC_BUFFER_SIZE; | |
| 1116 | } | ||
| 1117 | 18 | } | |
| 1118 | |||
| 1119 | #define GET_DATA_FROM_STORAGE(x) \ | ||
| 1120 | x = &parms_data_g_ptr->x; \ | ||
| 1121 | if (!x) { \ | ||
| 1122 | i360_free_global_copy(); \ | ||
| 1123 | return 1; \ | ||
| 1124 | } | ||
| 1125 | |||
| 1126 | #define GET_DATA_FROM_STORAGE_TYPE(x, y) \ | ||
| 1127 | x = (y)&parms_data_g_ptr->x; \ | ||
| 1128 | if (!x) { \ | ||
| 1129 | i360_free_global_copy(); \ | ||
| 1130 | return 1; \ | ||
| 1131 | } | ||
| 1132 | |||
| 1133 | 53 | static int i360_restore_dump(const char *fname, __attribute__((unused)) char sipher) { | |
| 1134 | #ifndef UNIT_TESTING | ||
| 1135 | struct flock lock; | ||
| 1136 | memset(&lock, 0, sizeof(struct flock)); | ||
| 1137 | |||
| 1138 | int fd = open(LOCK_F, O_RDONLY); | ||
| 1139 | if (fd == -1) { | ||
| 1140 | return 1; | ||
| 1141 | } | ||
| 1142 | |||
| 1143 | lock.l_type = F_RDLCK; | ||
| 1144 | |||
| 1145 | if (fcntl(fd, F_SETLKW, &lock) == -1) { | ||
| 1146 | close(fd); | ||
| 1147 | return 4; | ||
| 1148 | } | ||
| 1149 | #endif | ||
| 1150 | |||
| 1151 | 53 | storage = brp_restore_dump(fname, SECURITY_BYTE); | |
| 1152 | 53 | storage_free_cb = &free; | |
| 1153 | |||
| 1154 | #ifndef UNIT_TESTING | ||
| 1155 | fcntl(fd, F_UNLCK, &lock); | ||
| 1156 | close(fd); | ||
| 1157 | #endif | ||
| 1158 | |||
| 1159 | /* success */ | ||
| 1160 | 53 | return 0; | |
| 1161 | } | ||
| 1162 | |||
| 1163 | // Transformate in two items array only | ||
| 1164 | ✗ | static const char *i360_restore_from_options(__attribute__((unused)) void (**free_cb)(void *ptr)) { | |
| 1165 | ✗ | char *result = NULL; | |
| 1166 | struct { | ||
| 1167 | const char *bin_f, *dump_f; | ||
| 1168 | ✗ | } options[] = {{BIN_F_AGENT, DUMP_F_AGENT}, {BIN_F, DUMP_F}}, | |
| 1169 | ✗ | *next = &options[1]; // by default set /usr/share/i360-php-opt/.rules | |
| 1170 | // Check for .rules time modification | ||
| 1171 | struct stat rules_vers_st, rules_pack_st; | ||
| 1172 | ✗ | int rules_ver_rc = stat(options[0].bin_f, &rules_vers_st); | |
| 1173 | ✗ | int rules_pack_rc = stat(options[1].bin_f, &rules_pack_st); | |
| 1174 | ✗ | if ((rules_pack_rc == -1) && (rules_ver_rc == -1)) { // no files at all | |
| 1175 | ✗ | return result; | |
| 1176 | } | ||
| 1177 | ✗ | else if ((!rules_ver_rc) && (rules_pack_rc == -1)) { // no global rule only agent | |
| 1178 | ✗ | next = &options[0]; | |
| 1179 | } | ||
| 1180 | ✗ | else if ((!rules_ver_rc) && (rules_vers_st.st_mtime >= rules_pack_st.st_mtime)) { // global present by agents more new | |
| 1181 | // or equal | ||
| 1182 | ✗ | next = &options[0]; | |
| 1183 | } // by default use global. erlier set | ||
| 1184 | |||
| 1185 | /* using strncpy safely to avoid -Wstringop-truncation (GCC 8) */ | ||
| 1186 | ✗ | size_t bin_f_len = strlen(next->bin_f); | |
| 1187 | ✗ | memcpy(current_db_path, next->bin_f, bin_f_len + 1); | |
| 1188 | |||
| 1189 | struct stat dump_st, bin_st; | ||
| 1190 | ✗ | int dump_rc = stat(next->dump_f, &dump_st); | |
| 1191 | ✗ | int bin_rc = stat(next->bin_f, &bin_st); | |
| 1192 | ✗ | if (dump_rc == OK && bin_rc == OK && dump_st.st_mtime >= bin_st.st_mtime) { | |
| 1193 | ✗ | result = brp_restore_mmap_dump(next->dump_f, &storage_free_cb); | |
| 1194 | ✗ | if (result) | |
| 1195 | ✗ | return result; | |
| 1196 | } | ||
| 1197 | ✗ | if (bin_rc == OK) { | |
| 1198 | ✗ | int rc = i360_restore_dump(next->bin_f, SECURITY_BYTE); | |
| 1199 | ✗ | if (rc == OK) { | |
| 1200 | ✗ | result = storage; | |
| 1201 | ✗ | storage_free_cb = &free; | |
| 1202 | } | ||
| 1203 | } | ||
| 1204 | |||
| 1205 | ✗ | return result; | |
| 1206 | } | ||
| 1207 | |||
| 1208 | 58 | int i360_make_global_copy(i360_make_global_copy_params *params) { | |
| 1209 | 58 | int index = 0; | |
| 1210 | 58 | i360_set_database_version(SET_OLD_DBTYPE); | |
| 1211 | |||
| 1212 |
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|
58 | if (params && params->rules_file) { |
| 1213 | 53 | int rc = i360_restore_dump(params->rules_file, SECURITY_BYTE); | |
| 1214 |
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|
53 | if (rc) |
| 1215 | ✗ | return rc; | |
| 1216 | //#ifdef UNIT_TESTING | ||
| 1217 | //#pragma GCC diagnostic push | ||
| 1218 | //#pragma GCC diagnostic ignored "-Wextra" | ||
| 1219 | /* https://debarshiray.wordpress.com/2019/04/01/about-wextra-and-wcast-function-type */ | ||
| 1220 | // storage_free_cb = (storage_free_cb_ptr)&_test_free_internal; | ||
| 1221 | //#pragma GCC diagnostic pop | ||
| 1222 | //#else | ||
| 1223 | // storage_free_cb = &free; | ||
| 1224 | //#endif | ||
| 1225 | 53 | storage_free_cb = &free; | |
| 1226 | } | ||
| 1227 |
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|
5 | else if (i360_pd_database_init()) { |
| 1228 | 5 | i360_set_database_version(SET_HYPERSCAN_DBTYPE); | |
| 1229 | 5 | parms_data_g_ptr = &parms_data_g_ptr_v2; | |
| 1230 | 5 | funcs = NULL; | |
| 1231 | 5 | func_id = NULL; | |
| 1232 | 5 | func_old_conv = NULL; | |
| 1233 | 5 | writeloggers = NULL; | |
| 1234 | 5 | exclude_files_list = NULL; | |
| 1235 | |||
| 1236 | 5 | map_init(&parms_data_g_ptr->whitelist_map); | |
| 1237 |
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|
5 | if (params && params->application_id && strncmp(params->application_id, "-1", 2) != 0) { |
| 1238 | char whitelist_path[PATH_MAX]; | ||
| 1239 | ✗ | snprintf(whitelist_path, PATH_MAX, "%s%s_rules_whitelist", WHITELIST_APP_PATH, params->application_id); | |
| 1240 | ✗ | i360_read_whitelist_from_file(&parms_data_g_ptr->whitelist_map, whitelist_path); | |
| 1241 | } else { | ||
| 1242 | 5 | i360_read_whitelist_from_file(&parms_data_g_ptr->whitelist_map, WHITELIST_FILE); | |
| 1243 | } | ||
| 1244 | |||
| 1245 | 5 | i360_load_script_rules(); | |
| 1246 | 5 | return 0; | |
| 1247 | } | ||
| 1248 | else { | ||
| 1249 | ✗ | storage = (void *)i360_restore_from_options(&storage_free_cb); | |
| 1250 | } | ||
| 1251 | |||
| 1252 |
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|
53 | if (!storage) { |
| 1253 | ✗ | i360_free_global_copy(); | |
| 1254 | ✗ | return 2; | |
| 1255 | } | ||
| 1256 | |||
| 1257 | 53 | parms_data_g_ptr = brp_get_pointer_with_number(storage, 0); | |
| 1258 |
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|
53 | if (!parms_data_g_ptr) { |
| 1259 | ✗ | i360_free_global_copy(); | |
| 1260 | ✗ | return 3; | |
| 1261 | } | ||
| 1262 | |||
| 1263 |
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|
53 | GET_DATA_FROM_STORAGE(urls_list); |
| 1264 |
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|
53 | GET_DATA_FROM_STORAGE(files_list); |
| 1265 |
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|
53 | GET_DATA_FROM_STORAGE(funcs); |
| 1266 |
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|
53 | GET_DATA_FROM_STORAGE(func_id); |
| 1267 |
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|
53 | GET_DATA_FROM_STORAGE(func_old_conv); |
| 1268 |
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|
53 | GET_DATA_FROM_STORAGE(writeloggers); |
| 1269 |
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|
53 | GET_DATA_FROM_STORAGE(exclude_files_list); |
| 1270 | |||
| 1271 | 53 | map_init(&parms_data_g_ptr->whitelist_map); | |
| 1272 |
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|
54 | if (params && params->application_id && strncmp(params->application_id, "-1", 2) != 0) { |
| 1273 | char whitelist_path[PATH_MAX]; | ||
| 1274 | 1 | snprintf(whitelist_path, PATH_MAX, "%s%s_rules_whitelist", WHITELIST_APP_PATH, params->application_id); | |
| 1275 | 1 | i360_read_whitelist_from_file(&parms_data_g_ptr->whitelist_map, whitelist_path); | |
| 1276 | } else { | ||
| 1277 | 52 | i360_read_whitelist_from_file(&parms_data_g_ptr->whitelist_map, WHITELIST_FILE); | |
| 1278 | } | ||
| 1279 | |||
| 1280 | 53 | fp_list_g = &parms_data_g_ptr->fp_list; | |
| 1281 | |||
| 1282 | 53 | file_value *ptr = parms_data_g_ptr->rce_patterns_list; | |
| 1283 |
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|
409 | while (ptr) { |
| 1284 |
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|
356 | if (ptr->status > 0) |
| 1285 | 356 | pcre_pattern_to_host_byte_order(ptr->re, ptr->reE, NULL); | |
| 1286 | 356 | ptr = ptr->next; | |
| 1287 | } | ||
| 1288 | |||
| 1289 | 53 | rules_list *rules = parms_data_g_ptr->detector; | |
| 1290 |
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|
321 | while (rules) { |
| 1291 |
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|
268 | if (rules->status > 0) |
| 1292 | 268 | pcre_pattern_to_host_byte_order(rules->re, rules->reE, NULL); | |
| 1293 | |||
| 1294 |
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|
268 | if ((rules->precheck.param == 2) && (rules->precheck.status > 0)) { |
| 1295 | 15 | pcre_pattern_to_host_byte_order(rules->precheck.re, rules->precheck.reE, NULL); | |
| 1296 | } | ||
| 1297 |
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|
268 | if ((rules->fop_pfirst_chk.param == 2) && (rules->fop_pfirst_chk.status > 0)) { |
| 1298 | ✗ | pcre_pattern_to_host_byte_order(rules->fop_pfirst_chk.re, rules->fop_pfirst_chk.reE, NULL); | |
| 1299 | } | ||
| 1300 |
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|
268 | if ((rules->fop_psecond_chk.param == 2) && (rules->fop_psecond_chk.status > 0)) { |
| 1301 | ✗ | pcre_pattern_to_host_byte_order(rules->fop_psecond_chk.re, rules->fop_psecond_chk.reE, NULL); | |
| 1302 | } | ||
| 1303 | |||
| 1304 |
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|
268 | if (rules->private_fp_list.count) { |
| 1305 | ✗ | int rule_index = 0; | |
| 1306 | ✗ | for (rule_index = 0; rule_index < rules->private_fp_list.count; rule_index++) { | |
| 1307 | ✗ | rules_list *item = rules->private_fp_list.rules[rule_index]; | |
| 1308 | ✗ | while (item) { | |
| 1309 | ✗ | if (item->status > 0) { | |
| 1310 | ✗ | pcre_pattern_to_host_byte_order(item->re, item->reE, NULL); | |
| 1311 | } | ||
| 1312 | ✗ | item = item->next; | |
| 1313 | } | ||
| 1314 | } | ||
| 1315 | } | ||
| 1316 | 268 | rules = rules->next; | |
| 1317 | } | ||
| 1318 | |||
| 1319 | 53 | index = 0; | |
| 1320 |
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588 | for (index = 0; index < fp_list_g->count; index++) { |
| 1321 |
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|
535 | if (fp_list_g->rules[index]) { |
| 1322 | 470 | rules_list *rl = fp_list_g->rules[index]; | |
| 1323 |
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|
1005 | while (rl) { |
| 1324 |
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|
535 | if (rl->status > 0) |
| 1325 | 535 | pcre_pattern_to_host_byte_order(rl->re, rl->reE, NULL); | |
| 1326 | 535 | rl = rl->next; | |
| 1327 | } | ||
| 1328 | } | ||
| 1329 | } | ||
| 1330 | |||
| 1331 | 53 | i360_load_script_rules(); | |
| 1332 | 53 | return 0; | |
| 1333 | } | ||
| 1334 | |||
| 1335 | 9 | static int i360_check_fp_inner(const char *queue, size_t queue_len, int check_empty, exclude_rules_list *find_list) { | |
| 1336 |
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|
9 | if (find_list == NULL) |
| 1337 | ✗ | return 0; | |
| 1338 | |||
| 1339 | 9 | int val = i360_rev_ordered_find_partial(&find_list->files_list, cur_php_fname, strlen(cur_php_fname)); | |
| 1340 |
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9 | if (val >= 0 && find_list->rules && find_list->rules[val]) { |
| 1341 | 1 | rules_list *rl = find_list->rules[val]; | |
| 1342 |
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|
1 | while (rl) { |
| 1343 | // Only for rinit rules checker | ||
| 1344 | // no execution flow, that fp_rules should be marked as A in execution flow | ||
| 1345 | // A (big leter A) never faces in normal execution flow | ||
| 1346 |
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|
1 | if (rl->status > 0 && rl->raw_regexp && rl->raw_regexp[0] != 'A') { |
| 1347 | int pcreExecRet; | ||
| 1348 | int subStrVec[30]; | ||
| 1349 | |||
| 1350 | pcreExecRet = | ||
| 1351 | ✗ | pcre_exec(rl->re, rl->reE, queue, (int)queue_len, 0, PCRE_ANCHORED | PCRE_NO_START_OPTIMIZE, subStrVec, 30); | |
| 1352 | |||
| 1353 | ✗ | if (pcreExecRet > 0) { | |
| 1354 | ✗ | return 1; | |
| 1355 | } | ||
| 1356 | } | ||
| 1357 | else { | ||
| 1358 |
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|
1 | if (rl->raw_regexp && rl->raw_regexp[0] == 'A' && queue && !queue[0]) { |
| 1359 | // rule for i360_check_chain_rinit is in fp_list we shoukd to skip it | ||
| 1360 | 1 | return 1; | |
| 1361 | } | ||
| 1362 | } | ||
| 1363 | ✗ | rl = rl->next; | |
| 1364 | } | ||
| 1365 | } | ||
| 1366 | else { | ||
| 1367 |
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|
8 | if (check_empty) { |
| 1368 | ✗ | val = i360_rev_ordered_find_partial(&find_list->files_list, "***", 3); | |
| 1369 | ✗ | if (val >= 0) { | |
| 1370 | ✗ | rules_list *rl = find_list->rules[val]; | |
| 1371 | ✗ | while (rl) { | |
| 1372 | ✗ | if (rl->status > 0 && rl->raw_regexp && rl->raw_regexp[0] != 'A') { | |
| 1373 | int pcreExecRet; | ||
| 1374 | int subStrVec[30]; | ||
| 1375 | |||
| 1376 | ✗ | pcreExecRet = pcre_exec(rl->re, rl->reE, queue, (int)queue_len, 0, PCRE_ANCHORED | PCRE_NO_START_OPTIMIZE, | |
| 1377 | subStrVec, 30); | ||
| 1378 | |||
| 1379 | ✗ | if (pcreExecRet > 0) { | |
| 1380 | ✗ | return 1; | |
| 1381 | } | ||
| 1382 | } | ||
| 1383 | ✗ | rl = rl->next; | |
| 1384 | } | ||
| 1385 | } | ||
| 1386 | } | ||
| 1387 | } | ||
| 1388 | 8 | return 0; | |
| 1389 | } | ||
| 1390 | |||
| 1391 | 9 | int i360_check_fp(const char *queue, size_t queue_len, int check_empty) { | |
| 1392 | 9 | return i360_check_fp_inner(queue, queue_len, check_empty, fp_list_g); | |
| 1393 | } | ||
| 1394 | |||
| 1395 | 8 | static int i360_precheck_params_ext(rules_list *rule) { | |
| 1396 |
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|
8 | if (!rule->check_ext) |
| 1397 | 8 | return 1; | |
| 1398 | ✗ | if ((rule->check_ext_len <= 0)) | |
| 1399 | ✗ | return 1; | |
| 1400 | |||
| 1401 | ✗ | if (i360_get_params_new_numb()) { | |
| 1402 | ✗ | int index = 0; | |
| 1403 | ✗ | int len = 0; | |
| 1404 | ✗ | char *prm = i360_get_params_new(&index, &len); | |
| 1405 | ✗ | while (index != -1) { | |
| 1406 | ✗ | if (((size_t)len >= rule->check_ext_len) && | |
| 1407 | ✗ | (!strncmp(prm + len - rule->check_ext_len, rule->check_ext, rule->check_ext_len))) { | |
| 1408 | ✗ | return 1; | |
| 1409 | } | ||
| 1410 | ✗ | prm = i360_get_params_new(&index, &len); | |
| 1411 | } | ||
| 1412 | } | ||
| 1413 | ✗ | return 0; | |
| 1414 | } | ||
| 1415 | |||
| 1416 | 10 | static int i360_precheck_script_ext(rules_list *rule) { | |
| 1417 |
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|
10 | if (!rule->script_ext_param) |
| 1418 | 8 | return 1; | |
| 1419 |
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|
2 | if ((rule->script_ext_param > 2 || rule->script_ext_param < 0)) |
| 1420 | ✗ | return 1; | |
| 1421 | 2 | char *ptr = cur_php_fname; | |
| 1422 | |||
| 1423 |
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|
2 | if (rule->script_ext_param == 1) { |
| 1424 | ✗ | if (!i360_isset_cur_php_fname() || rule->script_ext_len < 1 || !rule->script_ext) { | |
| 1425 | ✗ | return 0; | |
| 1426 | } | ||
| 1427 | |||
| 1428 | ✗ | char *ptr = cur_php_fname; | |
| 1429 | |||
| 1430 | ✗ | if ((cur_php_fname_len >= rule->script_ext_len) && | |
| 1431 | ✗ | (!strncmp(ptr + cur_php_fname_len - rule->script_ext_len, rule->script_ext, rule->script_ext_len))) { | |
| 1432 | ✗ | return 1; | |
| 1433 | } | ||
| 1434 | |||
| 1435 | ✗ | return 0; | |
| 1436 | } | ||
| 1437 | else { | ||
| 1438 |
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|
2 | if (rule->script_ext_status > 0) { |
| 1439 | int pcreExecRet; | ||
| 1440 | int subStrVec[30]; | ||
| 1441 | |||
| 1442 | 2 | pcreExecRet = pcre_exec(rule->script_ext_re, | |
| 1443 | NULL, // rule->script_ext_reE, | ||
| 1444 | 2 | ptr, strlen(ptr), 0, PCRE_NO_START_OPTIMIZE, subStrVec, 30); | |
| 1445 | |||
| 1446 |
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|
2 | if (pcreExecRet > 0) { |
| 1447 | 2 | return 1; | |
| 1448 | } | ||
| 1449 | } | ||
| 1450 | } | ||
| 1451 | ✗ | return 0; | |
| 1452 | } | ||
| 1453 | |||
| 1454 | 8 | static int i360_check_mail_heuristic(const char *func_name) { | |
| 1455 | 8 | char max_param_len[G_MAX_ALT_NAME_LEN] = {0}; | |
| 1456 | 8 | int index = 0; | |
| 1457 | 8 | int len = 0; | |
| 1458 | 8 | char *prm = NULL; | |
| 1459 |
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|
8 | if (!strncmp(func_name, "mail", G_MAX_ALT_NAME_LEN)) { |
| 1460 | 1 | return 1; | |
| 1461 | } | ||
| 1462 |
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7 | else if (!strncmp(func_name, "fsockopen", G_MAX_ALT_NAME_LEN) || |
| 1463 |
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5 | !strncmp(func_name, "pfsockopen", G_MAX_ALT_NAME_LEN)) { |
| 1464 |
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|
2 | if (i360_get_params_new_numb() > 1) { |
| 1465 | 1 | index = 1; | |
| 1466 | 1 | len = 0; | |
| 1467 | 1 | prm = i360_get_params_index_new(&index, &len); | |
| 1468 |
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|
1 | if (len > 0 && prm) { |
| 1469 | 1 | int port = atoi(prm); | |
| 1470 |
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|
1 | if (port == 25 || port == 587 || port == 465) { |
| 1471 | 1 | return 1; | |
| 1472 | } | ||
| 1473 | } | ||
| 1474 | } | ||
| 1475 | } | ||
| 1476 |
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|
5 | else if (!strncmp(func_name, "stream_socket_client", G_MAX_ALT_NAME_LEN)) { |
| 1477 |
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|
2 | if (i360_get_params_new_numb()) { |
| 1478 | 1 | index = 0; | |
| 1479 | 1 | len = 0; | |
| 1480 | 1 | prm = i360_get_params_index_new(&index, &len); | |
| 1481 |
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|
1 | if (prm && len > 0) { |
| 1482 | 1 | memcpy(max_param_len, prm, strnlen(prm, G_MAX_ALT_NAME_LEN - 1)); | |
| 1483 | 1 | char *str = strchr(max_param_len, ':'); | |
| 1484 |
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|
1 | if (str) { |
| 1485 | 1 | str++; | |
| 1486 | 1 | int port = atoi(str); | |
| 1487 |
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|
1 | if (port == 25 || port == 587 || port == 465) { |
| 1488 | 1 | return 1; | |
| 1489 | } | ||
| 1490 | } | ||
| 1491 | } | ||
| 1492 | } | ||
| 1493 | } | ||
| 1494 |
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|
3 | else if (!strncmp(func_name, "socket_connect", G_MAX_ALT_NAME_LEN)) { |
| 1495 |
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|
2 | if (i360_get_params_new_numb() > 2) { |
| 1496 | 1 | index = 2; | |
| 1497 | 1 | len = 0; | |
| 1498 | 1 | prm = i360_get_params_index_new(&index, &len); | |
| 1499 |
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|
1 | if (prm && len > 0) { |
| 1500 | 1 | int port = atoi(prm); | |
| 1501 |
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|
1 | if (port == 25 || port == 587 || port == 465) { |
| 1502 | 1 | return 1; | |
| 1503 | } | ||
| 1504 | } | ||
| 1505 | } | ||
| 1506 | } | ||
| 1507 | 4 | return 0; | |
| 1508 | } | ||
| 1509 | |||
| 1510 | 14 | static int i360_precheck_param_fop(rules_re_t *rule, int index) { | |
| 1511 |
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|
14 | if ((rule->param > 2 || rule->param <= 0)) |
| 1512 | 14 | return 1; | |
| 1513 | ✗ | if (i360_get_params_new_numb() < index) | |
| 1514 | ✗ | return 0; | |
| 1515 | |||
| 1516 | ✗ | int len = 0; | |
| 1517 | ✗ | char *prm = i360_get_params_new(&index, &len); | |
| 1518 | ✗ | if (index == -1) | |
| 1519 | ✗ | return 0; | |
| 1520 | |||
| 1521 | ✗ | switch (rule->param) { | |
| 1522 | ✗ | case 1: | |
| 1523 | ✗ | if (len >= rule->string_len) { | |
| 1524 | ✗ | if (!strncmp(prm, rule->string_raw, rule->string_len)) { | |
| 1525 | ✗ | return 1; | |
| 1526 | } | ||
| 1527 | } | ||
| 1528 | ✗ | break; | |
| 1529 | ✗ | case 2: | |
| 1530 | ✗ | if (rule->status > 0) { | |
| 1531 | int pcreExecRet; | ||
| 1532 | int subStrVec[30]; | ||
| 1533 | ✗ | pcreExecRet = pcre_exec(rule->re, | |
| 1534 | NULL, // rule->reE, | ||
| 1535 | prm, len, 0, PCRE_NO_START_OPTIMIZE, subStrVec, 30); | ||
| 1536 | ✗ | if (pcreExecRet > 0) { | |
| 1537 | ✗ | return 1; | |
| 1538 | } | ||
| 1539 | } | ||
| 1540 | ✗ | break; | |
| 1541 | ✗ | default: | |
| 1542 | ✗ | abort(); | |
| 1543 | } | ||
| 1544 | ✗ | return 0; | |
| 1545 | } | ||
| 1546 | |||
| 1547 | 8 | static int i360_precheck_params(int target, rules_re_t *rule) { | |
| 1548 |
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|
8 | if (!rule->param) |
| 1549 | 5 | return 1; | |
| 1550 |
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|
3 | if ((rule->param > 2 || rule->param < 0)) |
| 1551 | ✗ | return 1; | |
| 1552 |
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|
3 | if (i360_get_params_new_numb()) { |
| 1553 | 3 | int index = 0; | |
| 1554 | 3 | int len = 0; | |
| 1555 | 3 | char *prm = i360_get_params_new(&index, &len); | |
| 1556 |
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|
3 | while (index != -1) { |
| 1557 |
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|
3 | if (rule->param == 1) { |
| 1558 | ✗ | if (len >= rule->string_len) { | |
| 1559 | ✗ | if (!strncmp(prm, rule->string_raw, rule->string_len)) { | |
| 1560 | 2 | return 1; | |
| 1561 | } | ||
| 1562 | } | ||
| 1563 | } | ||
| 1564 |
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|
3 | else if (rule->param == 2) { |
| 1565 |
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|
3 | if (rule->status > 0) { |
| 1566 | int pcreExecRet; | ||
| 1567 | int subStrVec[30]; | ||
| 1568 | |||
| 1569 | 3 | pcreExecRet = pcre_exec(rule->re, | |
| 1570 | NULL, // rule->reE, | ||
| 1571 | prm, len, 0, PCRE_NO_START_OPTIMIZE, subStrVec, 30); | ||
| 1572 | |||
| 1573 |
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|
3 | if (pcreExecRet > 0) { |
| 1574 | 2 | return 1; | |
| 1575 | } | ||
| 1576 | } | ||
| 1577 | } | ||
| 1578 |
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|
1 | if (target > 0) |
| 1579 | 1 | break; // for wp core should check only 1 parameter; | |
| 1580 | ✗ | prm = i360_get_params_new(&index, &len); | |
| 1581 | } | ||
| 1582 | } | ||
| 1583 | 1 | return 0; | |
| 1584 | } | ||
| 1585 | |||
| 1586 | 35 | static int i360_is_group_enabled(groups_rules_list *g_rules, unsigned int app_id, size_t enabled_group) { | |
| 1587 |
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35 | if ((g_rules->group_id == enabled_group) && (enabled_group)) |
| 1588 | ✗ | return 1; | |
| 1589 |
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|
35 | if (g_rules->enabled) { |
| 1590 |
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|
30 | if (app_id) { |
| 1591 | ✗ | if (g_rules->app_id == app_id) { | |
| 1592 | ✗ | return 1; | |
| 1593 | } | ||
| 1594 | } | ||
| 1595 | else { | ||
| 1596 | 30 | return 1; | |
| 1597 | } | ||
| 1598 | } | ||
| 1599 | 5 | return 0; | |
| 1600 | } | ||
| 1601 | |||
| 1602 | 11 | static int i360_precheck_function_name(rules_list *rule, const char *function_name) { | |
| 1603 |
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|
11 | if (rule->has_func_list) { |
| 1604 |
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|
6 | if (!function_name || !rule->func_list) |
| 1605 | ✗ | return 0; | |
| 1606 | 6 | int *res = map_get(rule->func_list, function_name); | |
| 1607 |
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|
6 | if (res) |
| 1608 | 6 | return 1; | |
| 1609 | ✗ | return 0; | |
| 1610 | } | ||
| 1611 | else | ||
| 1612 | 5 | return 1; | |
| 1613 | } | ||
| 1614 | |||
| 1615 | 2 | static int i360_check_exclude_list() { | |
| 1616 | 2 | char php_fname[RGX_MAX_DOCROOT_LEN + 1] = ""; | |
| 1617 | 2 | char cur_php_fname_dir[PATH_MAX] = ""; | |
| 1618 |
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|
2 | if (!exclude_list_opt) |
| 1619 | 2 | return 0; | |
| 1620 | ✗ | if (re_stat_rgx) { | |
| 1621 | ✗ | if (i360_get_params_new_numb()) { | |
| 1622 | ✗ | strncpy(cur_php_fname_dir, cur_php_fname, PATH_MAX); | |
| 1623 | ✗ | char *last_slash = strrchr(cur_php_fname_dir, '/'); | |
| 1624 | ✗ | if (last_slash) | |
| 1625 | ✗ | *last_slash = 0; | |
| 1626 | else | ||
| 1627 | ✗ | strncpy(cur_php_fname_dir, "/", PATH_MAX); | |
| 1628 | ✗ | int index = 0; | |
| 1629 | ✗ | int len = 0; | |
| 1630 | ✗ | char *prm = i360_get_params_new(&index, &len); | |
| 1631 | ✗ | while (index != -1) { | |
| 1632 | ✗ | if (len > 0) { | |
| 1633 | ✗ | if (i360_translate_to_real_path(prm, cur_php_fname_dir, php_fname, RGX_MAX_DOCROOT_LEN)) { | |
| 1634 | ✗ | memcpy(php_fname, prm, strlen(prm)); | |
| 1635 | } | ||
| 1636 | int pcreExecRet; | ||
| 1637 | int subStrVec[30]; | ||
| 1638 | pcreExecRet = | ||
| 1639 | ✗ | pcre_exec(re_stat_rgx, NULL, php_fname, strlen(php_fname), 0, PCRE_NO_START_OPTIMIZE, subStrVec, 30); | |
| 1640 | ✗ | if (pcreExecRet > 0) { | |
| 1641 | ✗ | return 1; | |
| 1642 | } | ||
| 1643 | } | ||
| 1644 | ✗ | prm = i360_get_params_new(&index, &len); | |
| 1645 | } | ||
| 1646 | } | ||
| 1647 | } | ||
| 1648 | ✗ | return 0; | |
| 1649 | } | ||
| 1650 | |||
| 1651 | 4 | static int i360_precheck_params_for_inclusion() { | |
| 1652 |
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|
4 | if (!malware_directory_config) |
| 1653 | 4 | return 0; | |
| 1654 | |||
| 1655 | ✗ | if (!i360_isset_cur_php_fname()) { | |
| 1656 | ✗ | return 0; | |
| 1657 | } | ||
| 1658 | |||
| 1659 | ✗ | if (i360_get_params_new_numb()) { | |
| 1660 | ✗ | int index = 0; | |
| 1661 | ✗ | int len = 0; | |
| 1662 | ✗ | char *prm = i360_get_params_new(&index, &len); | |
| 1663 | ✗ | while (index != -1) { | |
| 1664 | ✗ | if ((len > 0) && i360_check_if_file_marked_as_danger(prm, cur_php_fname, malware_directory_config_fd)) { | |
| 1665 | ✗ | return 1; | |
| 1666 | } | ||
| 1667 | ✗ | prm = i360_get_params_new(&index, &len); | |
| 1668 | } | ||
| 1669 | } | ||
| 1670 | |||
| 1671 | ✗ | return 0; | |
| 1672 | } | ||
| 1673 | |||
| 1674 | 1 | int i360_precheck_params_for_inclusion_rinit(char *current_script_name) { | |
| 1675 |
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|
1 | if (!malware_directory_config || !current_script_name) |
| 1676 | 1 | return 0; | |
| 1677 | ✗ | if (strstr(current_script_name, "index.php")) | |
| 1678 | ✗ | return 0; | |
| 1679 | |||
| 1680 | ✗ | if (i360_check_if_file_marked_as_danger(current_script_name, current_script_name, malware_directory_config_fd)) { | |
| 1681 | ✗ | return 1; | |
| 1682 | } | ||
| 1683 | |||
| 1684 | ✗ | return 0; | |
| 1685 | } | ||
| 1686 | |||
| 1687 | 7 | static int i360_precheck_susp_file_list(rules_list *rule) { | |
| 1688 |
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|
7 | if (!rule->is_list) |
| 1689 | 7 | return 1; | |
| 1690 | ✗ | return i360_fast_bad_syscall_detection_by_map_reverse(&rule->files_list); | |
| 1691 | } | ||
| 1692 | |||
| 1693 | 1 | int i360_is_file_white_listed(int rule_id) { | |
| 1694 | // Those files which names are whitelisted, we exclude | ||
| 1695 | // exclude them from regex search. Bitmask is used | ||
| 1696 |
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|
1 | if (cur_wl_rules && (WHITELIST_FILE_VER3 == wl_version) && |
| 1697 | ✗ | (!((unsigned int *)cur_wl_rules)[0] || | |
| 1698 | ✗ | bsearch(&rule_id, cur_wl_rules, MAX_WHITELIST_RULES, sizeof(int), i360_wl_item_comp))) | |
| 1699 | ✗ | return 1; | |
| 1700 | |||
| 1701 |
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|
1 | if (cur_wl_rules && (WHITELIST_FILE_VER4 == wl_version) && *(unsigned char *)cur_wl_rules && |
| 1702 | ✗ | (!((unsigned int *)(cur_wl_rules + 1))[0] || | |
| 1703 | ✗ | bsearch(&rule_id, cur_wl_rules + 1, *(unsigned char *)cur_wl_rules, sizeof(int), i360_wl_item_comp))) | |
| 1704 | ✗ | return 1; | |
| 1705 | |||
| 1706 | // Apply super-rules to every whitelist item | ||
| 1707 |
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|
2 | if (super_wl_rules && (WHITELIST_FILE_VER3 == wl_version) && |
| 1708 | 1 | bsearch(&rule_id, super_wl_rules, MAX_WHITELIST_RULES, sizeof(int), i360_wl_item_comp)) | |
| 1709 | ✗ | return 1; | |
| 1710 | |||
| 1711 |
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|
1 | if (super_wl_rules && (WHITELIST_FILE_VER4 == wl_version) && super_wl_rules[0] && |
| 1712 | ✗ | bsearch(&rule_id, super_wl_rules + 1, *(unsigned char *)super_wl_rules, sizeof(int), i360_wl_item_comp)) | |
| 1713 | ✗ | return 1; | |
| 1714 | |||
| 1715 | 1 | return 0; | |
| 1716 | } | ||
| 1717 | |||
| 1718 | 5 | static int i360_target_detection_by_map_reverse(char *file_name, struct reversed_ordered_set_t *m) { | |
| 1719 | 5 | char php_fname[RGX_MAX_DOCROOT_LEN] = {0}; | |
| 1720 | 5 | char cur_php_fname_dir[PATH_MAX] = {0}; | |
| 1721 |
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|
5 | if (!file_name || !m) |
| 1722 | ✗ | return 0; | |
| 1723 | /* using strncpy safely to avoid -Wstringop-truncation (GCC 8) */ | ||
| 1724 | 5 | size_t cur_php_fname_len = strlen(cur_php_fname); | |
| 1725 | 5 | memcpy(cur_php_fname_dir, cur_php_fname, cur_php_fname_len + 1); | |
| 1726 | 5 | char *last_slash = strrchr(cur_php_fname_dir, '/'); | |
| 1727 |
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|
5 | if (last_slash) |
| 1728 | 5 | *last_slash = 0; | |
| 1729 | else | ||
| 1730 | ✗ | strncpy(cur_php_fname_dir, "/", PATH_MAX); | |
| 1731 |
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|
5 | if (i360_translate_to_real_path(file_name, cur_php_fname_dir, php_fname, RGX_MAX_DOCROOT_LEN)) { |
| 1732 | 5 | memcpy(php_fname, file_name, strlen(file_name) + 1); | |
| 1733 | } | ||
| 1734 | 5 | char file_name_copy[PATH_MAX] = {0}; | |
| 1735 | 5 | int val = i360_rev_ordered_find_partial(m, php_fname, strlen(php_fname)); | |
| 1736 |
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|
5 | if (val >= 0) { |
| 1737 | 1 | return 1; | |
| 1738 | } | ||
| 1739 | else { | ||
| 1740 | /* using strncpy safely to avoid -Wstringop-truncation (GCC 8) */ | ||
| 1741 | 4 | size_t php_fname_len = strlen(php_fname); | |
| 1742 | 4 | memcpy(file_name_copy, php_fname, php_fname_len + 1); | |
| 1743 | 4 | char *ptr = strrchr(file_name_copy, '/'); | |
| 1744 |
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|
4 | if (ptr) { |
| 1745 | 4 | *ptr = 0; | |
| 1746 | 4 | val = i360_rev_ordered_find_partial(m, file_name_copy, strlen(file_name_copy)); | |
| 1747 |
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|
4 | if (val >= 0) { |
| 1748 | ✗ | return 1; | |
| 1749 | } | ||
| 1750 | } | ||
| 1751 | } | ||
| 1752 | 4 | return 0; | |
| 1753 | } | ||
| 1754 | |||
| 1755 | 2 | static int i360_target_fpa_positive(rules_list *rule, char *file_name) { | |
| 1756 |
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|
2 | if (!i360_precheck_script_ext(rule)) |
| 1757 | ✗ | return 0; | |
| 1758 |
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|
2 | if (i360_target_detection_by_map_reverse(file_name, exclude_files_list)) |
| 1759 | ✗ | return 0; | |
| 1760 | 2 | return 1; | |
| 1761 | } | ||
| 1762 | |||
| 1763 | 2 | static int i360_target_fpa_postivie_detection_by_map_reverse() { | |
| 1764 |
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|
2 | if (!exclude_files_list) |
| 1765 | ✗ | return 0; | |
| 1766 |
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|
2 | if (i360_get_params_new_numb()) { |
| 1767 | 2 | int index = 0; | |
| 1768 | 2 | int len = 0; | |
| 1769 | 2 | char *prm = i360_get_params_new(&index, &len); | |
| 1770 |
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|
3 | while (index != -1) { |
| 1771 |
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|
2 | if (len > G_MIN_HANDLE_STRING_SIZE) { |
| 1772 |
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|
2 | if (i360_target_detection_by_map_reverse(prm, exclude_files_list)) { |
| 1773 | 1 | return 1; | |
| 1774 | } | ||
| 1775 | } | ||
| 1776 | 1 | prm = i360_get_params_new(&index, &len); | |
| 1777 | } | ||
| 1778 | } | ||
| 1779 | 1 | return 0; | |
| 1780 | } | ||
| 1781 | |||
| 1782 | 1 | static int i360_target_wp_core_check_fopen(const char *function_name) { | |
| 1783 |
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|
1 | if (!strncmp(function_name, "fopen", 5)) { |
| 1784 | ✗ | if (i360_get_params_new_numb() > 1) { | |
| 1785 | ✗ | int index = 1; | |
| 1786 | ✗ | int len = 0; | |
| 1787 | ✗ | char *prm = i360_get_params_new(&index, &len); | |
| 1788 | ✗ | if (((len == 1) && !strncmp(prm, "r", 1)) || ((len == 2) && !strncmp(prm, "rb", 2))) { | |
| 1789 | ✗ | return 1; | |
| 1790 | } | ||
| 1791 | } | ||
| 1792 | } | ||
| 1793 | 1 | return 0; | |
| 1794 | } | ||
| 1795 | |||
| 1796 | 7 | static int i360_target_wp_core_protect(rules_list *rule, const char *function_name) { | |
| 1797 |
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|
7 | if (rule->target <= 0) |
| 1798 | 5 | return 1; | |
| 1799 |
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|
2 | if (rule->target & TARGET_fpa_negative) { |
| 1800 |
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|
1 | if (i360_target_fpa_postivie_detection_by_map_reverse()) |
| 1801 | ✗ | return 0; | |
| 1802 | 1 | return 1; | |
| 1803 | } | ||
| 1804 |
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|
1 | else if (rule->target & TARGET_fpa_notblock_postitive_script_negative) { |
| 1805 |
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|
1 | if (i360_target_wp_core_check_fopen(function_name)) |
| 1806 | ✗ | return 0; | |
| 1807 |
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|
1 | if (!i360_target_fpa_postivie_detection_by_map_reverse()) |
| 1808 | ✗ | return 1; | |
| 1809 |
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|
1 | if (!i360_isset_cur_php_fname()) |
| 1810 | ✗ | return 0; | |
| 1811 | 1 | char *script = cur_php_fname; | |
| 1812 |
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|
1 | if (i360_target_detection_by_map_reverse(script, exclude_files_list)) |
| 1813 | ✗ | return 0; | |
| 1814 | 1 | return 1; | |
| 1815 | } | ||
| 1816 | ✗ | else if (rule->target & TARGET_fpa_negative_only) { | |
| 1817 | ✗ | if (i360_target_wp_core_check_fopen(function_name)) | |
| 1818 | ✗ | return 0; | |
| 1819 | ✗ | if (i360_target_fpa_postivie_detection_by_map_reverse()) | |
| 1820 | ✗ | return 0; | |
| 1821 | ✗ | return 1; | |
| 1822 | } | ||
| 1823 | ✗ | return 0; | |
| 1824 | } | ||
| 1825 | |||
| 1826 | 117 | static int i360_default_recognizer_rule_match(rules_list *rule, const char *queue, size_t queue_len, | |
| 1827 | const char *function_name) { | ||
| 1828 |
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117 | if (rule->status <= 0 && !rule->detection_type) |
| 1829 | ✗ | return 0; | |
| 1830 | |||
| 1831 | // Those files which names are whitelisted, we exclude | ||
| 1832 | // exclude them from regex search. Bitmask is used | ||
| 1833 |
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117 | if (cur_wl_rules && (WHITELIST_FILE_VER3 == wl_version) && |
| 1834 |
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20 | (!((unsigned int *)cur_wl_rules)[0] || |
| 1835 | 10 | bsearch(&(rule->id), cur_wl_rules, MAX_WHITELIST_RULES, sizeof(int), i360_wl_item_comp))) | |
| 1836 | 6 | return 0; | |
| 1837 | |||
| 1838 |
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111 | if (cur_wl_rules && (WHITELIST_FILE_VER4 == wl_version) && *(unsigned char *)cur_wl_rules && |
| 1839 |
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|
50 | (!((unsigned int *)(cur_wl_rules + 1))[0] || |
| 1840 | 25 | bsearch(&(rule->id), cur_wl_rules + 1, *(unsigned char *)cur_wl_rules, sizeof(int), i360_wl_item_comp))) | |
| 1841 | 14 | return 0; | |
| 1842 | |||
| 1843 | // Apply super-rules to every whitelist item | ||
| 1844 |
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|
123 | if (super_wl_rules && (WHITELIST_FILE_VER3 == wl_version) && |
| 1845 | 26 | bsearch(&(rule->id), super_wl_rules, MAX_WHITELIST_RULES, sizeof(int), i360_wl_item_comp)) | |
| 1846 | 3 | return 0; | |
| 1847 | |||
| 1848 |
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|
112 | if (super_wl_rules && (WHITELIST_FILE_VER4 == wl_version) && super_wl_rules[0] && |
| 1849 | 18 | bsearch(&(rule->id), super_wl_rules + 1, *(unsigned char *)super_wl_rules, sizeof(int), i360_wl_item_comp)) | |
| 1850 | 3 | return 0; | |
| 1851 | |||
| 1852 | int pcreExecRet; | ||
| 1853 | int subStrVec[30]; | ||
| 1854 | |||
| 1855 |
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|
91 | if (rule->detection_type == 0) { |
| 1856 | pcreExecRet = | ||
| 1857 | 91 | pcre_exec(rule->re, rule->reE, queue, (int)queue_len, 0, PCRE_ANCHORED | PCRE_NO_START_OPTIMIZE, subStrVec, 30); | |
| 1858 | } | ||
| 1859 | ✗ | else if (rule->detection_type == 1) { | |
| 1860 | ✗ | if (!rule->rule_string || !rule->rule_string_len) | |
| 1861 | ✗ | return 0; | |
| 1862 | ✗ | if (rule->rule_string_len > queue_len) | |
| 1863 | ✗ | return 0; | |
| 1864 | ✗ | pcreExecRet = strncmp(rule->rule_string, queue, rule->rule_string_len) ? -1 : 1; | |
| 1865 | } | ||
| 1866 | else { | ||
| 1867 | ✗ | pcreExecRet = queue[0] == rule->rule_char ? 1 : -1; | |
| 1868 | } | ||
| 1869 | |||
| 1870 |
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91 | if (pcreExecRet < 1) |
| 1871 | 71 | return 0; | |
| 1872 | |||
| 1873 |
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|
20 | if (rule->check_blocked == 2) { |
| 1874 |
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|
4 | return (i360_precheck_function_name(rule, function_name) && |
| 1875 |
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|
4 | (i360_precheck_params_for_inclusion() || i360_check_exclude_list()) && i360_precheck_susp_file_list(rule)); |
| 1876 | } | ||
| 1877 | |||
| 1878 |
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|
18 | if (rule->check_blocked == 1) |
| 1879 |
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|
2 | return (i360_precheck_function_name(rule, function_name) && i360_precheck_params_for_inclusion() && |
| 1880 | ✗ | i360_precheck_susp_file_list(rule)); | |
| 1881 | |||
| 1882 |
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|
16 | if (rule->check_mail == 1) |
| 1883 | 8 | return i360_check_mail_heuristic(function_name); | |
| 1884 | |||
| 1885 |
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|
16 | if (i360_precheck_script_ext(rule) && i360_precheck_params_ext(rule) && |
| 1886 |
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22 | i360_precheck_params(rule->target, &rule->precheck) && i360_precheck_param_fop(&rule->fop_pfirst_chk, 0) && |
| 1887 |
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21 | i360_precheck_param_fop(&rule->fop_psecond_chk, 1) && i360_precheck_function_name(rule, function_name) && |
| 1888 |
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14 | i360_precheck_susp_file_list(rule) && i360_target_wp_core_protect(rule, function_name)) { |
| 1889 |
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7 | if (rule->is_list || rule->check_fp) { |
| 1890 | ✗ | ((unsigned char*)queue)[0] = (char)toupper((unsigned char)queue[0]); | |
| 1891 | } | ||
| 1892 | 7 | return (rule->check_fp != 1) | |
| 1893 | 7 | ? ((rule->private_fp_list.count > 0) | |
| 1894 | ✗ | ? (!i360_check_fp_inner(queue, queue_len, 0, (exclude_rules_list *)&rule->private_fp_list)) | |
| 1895 |
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7 | : (!i360_check_fp(queue, queue_len, 0))) |
| 1896 |
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|
14 | : 1; // fp exclude list |
| 1897 | } | ||
| 1898 | |||
| 1899 | 1 | return 0; | |
| 1900 | } | ||
| 1901 | |||
| 1902 | #define FNAME_LEN 16 | ||
| 1903 | |||
| 1904 | 3 | int i360_check_null_file_size(const char *fname) { | |
| 1905 | 3 | char php_fname[RGX_MAX_DOCROOT_LEN + 1] = ""; | |
| 1906 | 3 | char cur_php_fname_dir[PATH_MAX] = ""; | |
| 1907 | struct stat st; | ||
| 1908 | |||
| 1909 |
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|
3 | if (!fname || *fname == 0) |
| 1910 | ✗ | return 1; | |
| 1911 | |||
| 1912 | 3 | strncpy(cur_php_fname_dir, cur_php_fname, PATH_MAX); | |
| 1913 | 3 | char *last_slash = strrchr(cur_php_fname_dir, '/'); | |
| 1914 |
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|
3 | if (last_slash) |
| 1915 | 2 | *last_slash = 0; | |
| 1916 | else | ||
| 1917 | 1 | cur_php_fname_dir[0] = '\0'; | |
| 1918 | //strncpy(cur_php_fname_dir, "/", PATH_MAX); | ||
| 1919 |
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3 | if (i360_translate_to_real_path(fname, cur_php_fname_dir, php_fname, RGX_MAX_DOCROOT_LEN)) |
| 1920 | 1 | memcpy(php_fname, fname, strlen(fname)); | |
| 1921 |
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3 | if (!stat(php_fname, &st) && st.st_size) |
| 1922 | 2 | return 0; | |
| 1923 | |||
| 1924 | 1 | return 1; | |
| 1925 | } | ||
| 1926 | |||
| 1927 | 20 | static rules_list *i360_script_default_recognizer(const char *function_name, const char *queue, size_t queue_len) { | |
| 1928 | 20 | const char *names[] = {cur_php_fname, "*"}; | |
| 1929 | size_t i; | ||
| 1930 |
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|
60 | for (i = 0; i < sizeof(names)/sizeof(names[0]); ++ i) { |
| 1931 | 40 | script_rules_t *script_rules = i360_get_script_rules(names[i], cur_php_uid); | |
| 1932 |
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40 | if (script_rules) { |
| 1933 | ✗ | rules_list *rule = script_rules->rules; | |
| 1934 | ✗ | while (rule) { | |
| 1935 | ✗ | i360_ull rule_timer = 0; | |
| 1936 | ✗ | i360_counter_saver_savetimer(&rule_timer); | |
| 1937 | ✗ | if (i360_default_recognizer_rule_match(rule, queue, queue_len, function_name)) { | |
| 1938 | ✗ | i360_counter_saver_add_rule(rule->id, rule_timer); | |
| 1939 | ✗ | return rule; | |
| 1940 | } | ||
| 1941 | ✗ | i360_counter_saver_add_rule(rule->id, rule_timer); | |
| 1942 | |||
| 1943 | ✗ | rule = rule->next; | |
| 1944 | } | ||
| 1945 | } | ||
| 1946 | } | ||
| 1947 | |||
| 1948 | 20 | return NULL; | |
| 1949 | } | ||
| 1950 | |||
| 1951 | 28 | static rules_list *i360_default_recognizer(const char *function_name, const char *queue, size_t queue_len, int level, | |
| 1952 | unsigned int app_id, int enabled_group) { | ||
| 1953 | 28 | groups_rules_list *g_rules = parms_data_g_ptr->grp_detector; | |
| 1954 |
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|
48 | while (g_rules) { |
| 1955 |
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|
31 | if (i360_is_group_enabled(g_rules, app_id, enabled_group)) { |
| 1956 | 28 | rules_list_ptr *rules_ptr = g_rules->head; | |
| 1957 |
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|
137 | while (rules_ptr) { |
| 1958 | 120 | rules_list *rule = rules_ptr->rule_ptr; | |
| 1959 | |||
| 1960 |
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|
120 | if (rule->level < level) { |
| 1961 | ✗ | rules_ptr = rules_ptr->next; | |
| 1962 | 3 | continue; | |
| 1963 | } | ||
| 1964 |
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|
120 | if (rule->target & TARGET_before_execution_negative) { |
| 1965 | 3 | rules_ptr = rules_ptr->next; | |
| 1966 | 3 | continue; | |
| 1967 | } | ||
| 1968 | |||
| 1969 | 117 | i360_ull rule_timer = 0; | |
| 1970 | 117 | i360_counter_saver_savetimer(&rule_timer); | |
| 1971 | |||
| 1972 |
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|
117 | if (i360_default_recognizer_rule_match(rule, queue, queue_len, function_name)) { |
| 1973 | 11 | i360_counter_saver_add_rule(rule->id, rule_timer); | |
| 1974 | 11 | return rule; | |
| 1975 | } | ||
| 1976 | |||
| 1977 | 106 | i360_counter_saver_add_rule(rule->id, rule_timer); | |
| 1978 | |||
| 1979 | 106 | rules_ptr = rules_ptr->next; | |
| 1980 | } | ||
| 1981 | } | ||
| 1982 | 20 | g_rules = g_rules->next; | |
| 1983 | } | ||
| 1984 | |||
| 1985 | 17 | return i360_script_default_recognizer(function_name, queue, queue_len); | |
| 1986 | } | ||
| 1987 | |||
| 1988 | 33 | static int i360_get_app_id() { | |
| 1989 | 33 | return 0; | |
| 1990 | } | ||
| 1991 | |||
| 1992 | 28 | void i360_check_chain(__attribute__((unused)) params_list *params, chain_result *result, int logger, | |
| 1993 | const char *function_name, const char *queue, size_t queue_len, int level, int enabled_group) { | ||
| 1994 | 28 | memset(result, 0, sizeof(chain_result)); | |
| 1995 | 28 | result->danger_type = NODANGER; | |
| 1996 | 28 | result->recognizer_id = I360_RECOGNIZER_ID_NONE; | |
| 1997 | |||
| 1998 | 28 | rules_list *rules = i360_default_recognizer(function_name, queue, queue_len, level, i360_get_app_id(), enabled_group); | |
| 1999 |
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|
28 | if (rules) { |
| 2000 |
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|
11 | if ((rules->action == BLOCK_FUNC) || (rules->id >= PHP_IMUNITY_MIN_ID && rules->id <= PHP_IMUNITY_MAX_ID)) { |
| 2001 | 2 | result->block = 1; | |
| 2002 | } | ||
| 2003 |
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|
11 | if (rules->action != NO_ACTION && rules->check_blocked == 2) { |
| 2004 | ✗ | result->block = 2; | |
| 2005 | } | ||
| 2006 | 11 | result->recognizer_id = I360_RECOGNIZER_ID_COMMON; | |
| 2007 | 11 | result->chain_id = rules->id; | |
| 2008 | 11 | result->danger_type = DANGER; | |
| 2009 | 11 | result->recognizer_desr = I360_RECOGNIZER_ID_COMMON_DESC; | |
| 2010 | 11 | result->ruldescr = rules->description; | |
| 2011 | } | ||
| 2012 | |||
| 2013 |
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|
28 | if ((result->chain_id >= G_NON_LOG_RULE_ID) || (i360_is_rce_logger_log_mode() && (result->danger_type == DANGER))) { |
| 2014 | 2 | result->recognizer_id = I360_RECOGNIZER_ID_INTERNAL; | |
| 2015 | 2 | result->recognizer_desr = I360_RECOGNIZER_ID_INTERNAL_DESC; | |
| 2016 | } | ||
| 2017 | |||
| 2018 |
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|
28 | if (logger) { |
| 2019 |
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|
2 | if (result->danger_type) { |
| 2020 | 1 | result->action = LOG_ONLY; | |
| 2021 | } | ||
| 2022 | else { | ||
| 2023 | 1 | result->recognizer_desr = I360_RECOGNIZER_ID_LOG_DESC; | |
| 2024 | 1 | result->action = LOG_ONLY; | |
| 2025 | 1 | result->recognizer_id = I360_RECOGNIZER_ID_LOG; | |
| 2026 | 1 | result->chain_id = 0; | |
| 2027 | 1 | result->danger_type = DANGER; | |
| 2028 | } | ||
| 2029 | } | ||
| 2030 | 28 | } | |
| 2031 | |||
| 2032 | 2 | static int i360_target_before_execution_negative(rules_list *rule, char *file_name) { | |
| 2033 | 2 | return i360_target_fpa_positive(rule, file_name); | |
| 2034 | } | ||
| 2035 | |||
| 2036 | 2 | static rules_list *i360_default_recognizer_rinit(int level, unsigned int app_id, size_t enabled_group, | |
| 2037 | char *file_name) { | ||
| 2038 | 2 | groups_rules_list *g_rules = parms_data_g_ptr->grp_detector; | |
| 2039 |
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|
5 | while (g_rules) { |
| 2040 |
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|
4 | if (i360_is_group_enabled(g_rules, app_id, enabled_group)) { |
| 2041 | 2 | rules_list_ptr *rules_ptr = g_rules->head; | |
| 2042 |
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|
8 | while (rules_ptr) { |
| 2043 | 7 | rules_list *rule = rules_ptr->rule_ptr; | |
| 2044 | |||
| 2045 |
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|
7 | if (rule->level < level) { |
| 2046 | ✗ | rules_ptr = rules_ptr->next; | |
| 2047 | 5 | continue; | |
| 2048 | } | ||
| 2049 |
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|
7 | if (!(rule->target & TARGET_before_execution_negative)) { |
| 2050 | 5 | rules_ptr = rules_ptr->next; | |
| 2051 | 5 | continue; | |
| 2052 | } | ||
| 2053 | |||
| 2054 | 2 | i360_ull rule_timer = 0; | |
| 2055 | 2 | i360_counter_saver_savetimer(&rule_timer); | |
| 2056 |
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|
2 | if (i360_target_before_execution_negative(rule, file_name)) { |
| 2057 | // Check for fp_rules without execution flow | ||
| 2058 |
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|
2 | if (rule->check_fp != 1) { |
| 2059 |
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|
2 | if (rule->private_fp_list.count > 0) { |
| 2060 | ✗ | if (!i360_check_fp_inner("", 0, 0, (exclude_rules_list *)&rule->private_fp_list)) { | |
| 2061 | ✗ | i360_counter_saver_add_rule(rule->id, rule_timer); | |
| 2062 | 1 | return rule; | |
| 2063 | } | ||
| 2064 | } | ||
| 2065 | else { | ||
| 2066 |
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|
2 | if (!i360_check_fp("", 0, 0)) { |
| 2067 | 1 | i360_counter_saver_add_rule(rule->id, rule_timer); | |
| 2068 | 1 | return rule; | |
| 2069 | } | ||
| 2070 | } | ||
| 2071 | } | ||
| 2072 | else { | ||
| 2073 | ✗ | i360_counter_saver_add_rule(rule->id, rule_timer); | |
| 2074 | ✗ | return rule; | |
| 2075 | } | ||
| 2076 | } | ||
| 2077 | 1 | i360_counter_saver_add_rule(rule->id, rule_timer); | |
| 2078 | |||
| 2079 | 1 | rules_ptr = rules_ptr->next; | |
| 2080 | } | ||
| 2081 | } | ||
| 2082 | 3 | g_rules = g_rules->next; | |
| 2083 | } | ||
| 2084 | |||
| 2085 | 1 | return NULL; | |
| 2086 | } | ||
| 2087 | |||
| 2088 | 2 | void i360_check_chain_rinit(chain_result *result, int logger, int level, int enabled_group, char *file_name) { | |
| 2089 | 2 | memset(result, 0, sizeof(chain_result)); | |
| 2090 | 2 | result->danger_type = NODANGER; | |
| 2091 | 2 | result->recognizer_id = I360_RECOGNIZER_ID_NONE; | |
| 2092 | |||
| 2093 |
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|
2 | if (!i360_pd_database_check_rinit(result, level, enabled_group, "", 0)) { |
| 2094 | 2 | rules_list *rules = i360_default_recognizer_rinit(level, i360_get_app_id(), enabled_group, file_name); | |
| 2095 |
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|
2 | if (rules) { |
| 2096 |
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|
1 | if ((rules->action == BLOCK_FUNC) || (rules->id >= PHP_IMUNITY_MIN_ID && rules->id <= PHP_IMUNITY_MAX_ID)) { |
| 2097 | ✗ | result->block = 1; | |
| 2098 | } | ||
| 2099 |
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|
1 | if (rules->action != NO_ACTION && rules->check_blocked == 2) { |
| 2100 | ✗ | result->block = 2; | |
| 2101 | } | ||
| 2102 | 1 | result->recognizer_id = I360_RECOGNIZER_ID_COMMON; | |
| 2103 | 1 | result->chain_id = rules->id; | |
| 2104 | 1 | result->danger_type = DANGER; | |
| 2105 | 1 | result->recognizer_desr = I360_RECOGNIZER_ID_COMMON_DESC; | |
| 2106 | 1 | result->ruldescr = rules->description; | |
| 2107 | } | ||
| 2108 | } | ||
| 2109 | |||
| 2110 |
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|
2 | if ((result->chain_id >= G_NON_LOG_RULE_ID) || (i360_is_rce_logger_log_mode() && (result->danger_type == DANGER))) { |
| 2111 | 1 | result->recognizer_id = I360_RECOGNIZER_ID_INTERNAL; | |
| 2112 | 1 | result->recognizer_desr = I360_RECOGNIZER_ID_INTERNAL_DESC; | |
| 2113 | } | ||
| 2114 | |||
| 2115 |
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|
2 | if (logger) { |
| 2116 | ✗ | if (result->danger_type) { | |
| 2117 | ✗ | result->action = LOG_ONLY; | |
| 2118 | } | ||
| 2119 | else { | ||
| 2120 | ✗ | result->recognizer_desr = I360_RECOGNIZER_ID_LOG_DESC; | |
| 2121 | ✗ | result->action = LOG_ONLY; | |
| 2122 | ✗ | result->recognizer_id = I360_RECOGNIZER_ID_LOG; | |
| 2123 | ✗ | result->chain_id = 0; | |
| 2124 | ✗ | result->danger_type = DANGER; | |
| 2125 | } | ||
| 2126 | } | ||
| 2127 | 2 | } | |
| 2128 | |||
| 2129 | 9 | int i360_result_action(chain_result *chains, int user_action) { | |
| 2130 |
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|
9 | if (chains->recognizer_id == I360_RECOGNIZER_ID_INTERNAL) { |
| 2131 | ✗ | return LOG_ONLY; | |
| 2132 | } | ||
| 2133 | 9 | return user_action; | |
| 2134 | } | ||
| 2135 | |||
| 2136 | 4 | void i360_func_foreach(void (*f)(const char *key, const char *val, int is_danger, int is_openwrite, | |
| 2137 | const void *dbfunc)) { | ||
| 2138 |
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|
4 | if (i360_pd_database_func_foreach(f)) |
| 2139 | 4 | return; | |
| 2140 | |||
| 2141 | ✗ | const char *key = NULL; | |
| 2142 | ✗ | map_iter_t iter = map_iter(funcs); | |
| 2143 | ✗ | while ((key = map_next(funcs, &iter))) { | |
| 2144 | ✗ | char *res = (char *)map_value(funcs, &iter); | |
| 2145 | ✗ | if (map_get(writeloggers, key)) { | |
| 2146 | ✗ | f(key, res, 1, 1, 0); | |
| 2147 | } | ||
| 2148 | else { | ||
| 2149 | ✗ | f(key, res, 1, 0, 0); | |
| 2150 | } | ||
| 2151 | } | ||
| 2152 | |||
| 2153 | ✗ | iter = map_iter(writeloggers); | |
| 2154 | ✗ | while ((key = map_next(writeloggers, &iter))) { | |
| 2155 | ✗ | if (!map_get(funcs, key)) { | |
| 2156 | ✗ | f(key, NULL, 0, 1, 0); | |
| 2157 | } | ||
| 2158 | } | ||
| 2159 | } | ||
| 2160 | |||
| 2161 | #ifndef UNIT_TESTING | ||
| 2162 | void i360_print_params(params_list *params, const char *fname, const char *dbgfile_name) { | ||
| 2163 | if (!params) | ||
| 2164 | return; | ||
| 2165 | if (dbgfile_name) { | ||
| 2166 | i360_write_debug_log(dbgfile_name, 2, "FUNC PARAMS %s:", fname); | ||
| 2167 | } | ||
| 2168 | if (params->head) { | ||
| 2169 | params_item *item = params->head; | ||
| 2170 | while (item) { | ||
| 2171 | if (dbgfile_name) { | ||
| 2172 | i360_write_debug_log(dbgfile_name, 0, "%s,", item->param); | ||
| 2173 | } | ||
| 2174 | item = item->next; | ||
| 2175 | } | ||
| 2176 | } | ||
| 2177 | if (dbgfile_name) { | ||
| 2178 | i360_write_debug_log(dbgfile_name, 3, ""); | ||
| 2179 | } | ||
| 2180 | return; | ||
| 2181 | } | ||
| 2182 | |||
| 2183 | void i360_print_params_new(const char *fname, const char *dbgfile_name) { | ||
| 2184 | if (!i360_params_numb) | ||
| 2185 | return; | ||
| 2186 | if (dbgfile_name) { | ||
| 2187 | i360_write_debug_log(dbgfile_name, 2, "FUNC PARAMS %s:", fname); | ||
| 2188 | } | ||
| 2189 | if (i360_params_numb) { | ||
| 2190 | int index = 0; | ||
| 2191 | int len = 0; | ||
| 2192 | char *prm = i360_get_params_new(&index, &len); | ||
| 2193 | while (index != -1) { | ||
| 2194 | if (dbgfile_name) { | ||
| 2195 | i360_write_debug_log(dbgfile_name, 0, "%s,", prm); | ||
| 2196 | } | ||
| 2197 | prm = i360_get_params_new(&index, &len); | ||
| 2198 | } | ||
| 2199 | } | ||
| 2200 | if (dbgfile_name) { | ||
| 2201 | i360_write_debug_log(dbgfile_name, 3, ""); | ||
| 2202 | } | ||
| 2203 | return; | ||
| 2204 | } | ||
| 2205 | |||
| 2206 | void i360_print_func_dict_letter() { | ||
| 2207 | const char *key = NULL; | ||
| 2208 | map_iter_t iter = map_iter(funcs); | ||
| 2209 | while ((key = map_next(funcs, &iter))) { | ||
| 2210 | char *res = (char *)map_get(funcs, key); | ||
| 2211 | char letter_buf[2] = {0}; | ||
| 2212 | snprintf(letter_buf, 2, "%c", res[0]); | ||
| 2213 | printf("%c\t%s\n", res[0], key); | ||
| 2214 | } | ||
| 2215 | iter = map_iter(&parms_data_g_ptr->groups); | ||
| 2216 | while ((key = map_next(&parms_data_g_ptr->groups, &iter))) { | ||
| 2217 | char *res = (char *)map_get(&parms_data_g_ptr->groups, key); | ||
| 2218 | char *name = (char *)map_get(funcs, res); | ||
| 2219 | if (!name) { | ||
| 2220 | printf("%c\t%s\n", key[0], res); | ||
| 2221 | } | ||
| 2222 | } | ||
| 2223 | } | ||
| 2224 | |||
| 2225 | void i360_print_func_dict() { | ||
| 2226 | char letter_shown[256] = {0}; | ||
| 2227 | const char *key = NULL; | ||
| 2228 | map_iter_t iter = map_iter(funcs); | ||
| 2229 | while ((key = map_next(funcs, &iter))) { | ||
| 2230 | char *res = (char *)map_get(funcs, key); | ||
| 2231 | uint8_t index = (uint8_t)res[0]; | ||
| 2232 | if (!letter_shown[index]) { | ||
| 2233 | char letter_buf[2] = {0}; | ||
| 2234 | snprintf(letter_buf, 2, "%c", res[0]); | ||
| 2235 | char *name = (char *)map_get(&parms_data_g_ptr->groups, letter_buf); | ||
| 2236 | printf("%c\t%s\n", res[0], name ? name : key); | ||
| 2237 | letter_shown[index] = 1; | ||
| 2238 | } | ||
| 2239 | } | ||
| 2240 | } | ||
| 2241 | |||
| 2242 | void i360_print_groups_dict() { | ||
| 2243 | groups_rules_list *g_rules = parms_data_g_ptr->grp_detector; | ||
| 2244 | while (g_rules) { | ||
| 2245 | if (i360_is_group_enabled(g_rules, 0, 0)) { | ||
| 2246 | printf("%d\t%s\n", g_rules->group_id, g_rules->group_description); | ||
| 2247 | } | ||
| 2248 | g_rules = g_rules->next; | ||
| 2249 | } | ||
| 2250 | } | ||
| 2251 | #endif | ||
| 2252 | |||
| 2253 | 1 | params_global_data *i360_get_global_data() { | |
| 2254 | 1 | return parms_data_g_ptr; | |
| 2255 | } | ||
| 2256 | |||
| 2257 | 1 | identifier i360_make_anyop_old(uint8_t glb, uint8_t uniq) { | |
| 2258 | 1 | identifier tmp = {0}; | |
| 2259 | 1 | tmp.split.syscall_name = ANYOP; | |
| 2260 | 1 | tmp.split.reserved = PHP1_RESERVED; | |
| 2261 | 1 | tmp.split.anyop_calls = glb; | |
| 2262 | 1 | tmp.split.anyop_dif_modif = uniq; | |
| 2263 | 1 | return tmp; | |
| 2264 | } | ||
| 2265 | |||
| 2266 | 1 | int i360_is_eval_in_func_list() { | |
| 2267 | char buffer[G_MAX_RESULT_LEN]; | ||
| 2268 |
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|
1 | if (!funcs) |
| 2269 | ✗ | return 1; | |
| 2270 | 1 | memset(buffer, 0, G_MAX_RESULT_LEN); | |
| 2271 |
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|
1 | if (i360_is_function_hooked("eval", buffer)) { |
| 2272 | 1 | return 1; | |
| 2273 | } | ||
| 2274 | ✗ | return 0; | |
| 2275 | } | ||
| 2276 | |||
| 2277 | #define FILE_DEBUG_LEN 4096 | ||
| 2278 | |||
| 2279 | 3 | int i360_write_debug_log(const char *file_name, int new_line, const char *format, ...) { | |
| 2280 | char file_name_new[FILE_DEBUG_LEN]; | ||
| 2281 | char buffer[16000]; | ||
| 2282 | 3 | snprintf(file_name_new, FILE_DEBUG_LEN, "%s.%d", file_name, getpid()); | |
| 2283 | 3 | FILE *fp = fopen(file_name_new, "a"); | |
| 2284 |
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|
3 | if (fp) { |
| 2285 | struct timeval tv; | ||
| 2286 | 3 | gettimeofday(&tv, NULL); | |
| 2287 | va_list args; | ||
| 2288 | 3 | va_start(args, format); | |
| 2289 | 3 | vsnprintf(buffer, 16000, format, args); | |
| 2290 | 3 | va_end(args); | |
| 2291 |
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|
3 | if (new_line == 1) { |
| 2292 | 1 | fprintf(fp, "[%lld.%lld] %s\n", (long long)(tv.tv_sec), (long long)(tv.tv_usec) / 1000, buffer); | |
| 2293 | } | ||
| 2294 |
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|
2 | else if (new_line == 2) { |
| 2295 | 1 | fprintf(fp, "[%lld.%lld] %s", (long long)(tv.tv_sec), (long long)(tv.tv_usec) / 1000, buffer); | |
| 2296 | } | ||
| 2297 | else { | ||
| 2298 |
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|
1 | fprintf(fp, "%s%s", buffer, (new_line ? "\n" : "")); |
| 2299 | } | ||
| 2300 | 3 | fclose(fp); | |
| 2301 | } | ||
| 2302 | 3 | return 0; | |
| 2303 | } | ||
| 2304 | |||
| 2305 | static __thread int rce_logger = 0; | ||
| 2306 | |||
| 2307 | 1 | void i360_reset_logger_rce() { | |
| 2308 | 1 | rce_logger = 0; // block mode | |
| 2309 | 1 | } | |
| 2310 | |||
| 2311 | 1 | void i360_set_logger_rce() { | |
| 2312 | 1 | rce_logger = 1; // log mode | |
| 2313 | 1 | } | |
| 2314 | |||
| 2315 | 30 | int i360_is_rce_logger_log_mode() { | |
| 2316 | 30 | return rce_logger == 1; | |
| 2317 | } | ||
| 2318 | |||
| 2319 | typedef void (*iter_environ_cb)(char *s, size_t ln, void *data); | ||
| 2320 | |||
| 2321 | /** | ||
| 2322 | * Slurp file content into memory buffer on heap. | ||
| 2323 | * File size is not checked, thus slurp_file() is Ok | ||
| 2324 | * to be used for procfs items or pipes. | ||
| 2325 | * | ||
| 2326 | * @param path | ||
| 2327 | * @param buf_heapptr placeholder for heap buffer pointer. | ||
| 2328 | * That is slurp_file() caller responsibility to free heap buffer | ||
| 2329 | * when the things are done. | ||
| 2330 | * @Return number of bytes read or -1 on error | ||
| 2331 | */ | ||
| 2332 | 2 | static ssize_t slurp_file(const char *path, char **buf_heapptr) { | |
| 2333 | 2 | FILE *fp = fopen(path, "rb"); | |
| 2334 |
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|
2 | if (!fp) |
| 2335 | ✗ | return -1; | |
| 2336 | |||
| 2337 | 2 | size_t buf_len = 4096; | |
| 2338 | |||
| 2339 |
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|
2 | if (!(*buf_heapptr = malloc(buf_len))) { |
| 2340 | ✗ | fclose(fp); | |
| 2341 | ✗ | return -1; | |
| 2342 | } | ||
| 2343 | |||
| 2344 | 2 | size_t buf_free_capacity = buf_len; | |
| 2345 | 2 | size_t buf_next_chunk_offset = 0; | |
| 2346 | 2 | ssize_t retval = 0; | |
| 2347 | |||
| 2348 | 2 | while (true) { | |
| 2349 | 4 | size_t bytes_read = fread(*buf_heapptr + buf_next_chunk_offset, 1, buf_free_capacity, fp); | |
| 2350 | 4 | retval += bytes_read; | |
| 2351 | 4 | buf_free_capacity -= bytes_read; | |
| 2352 |
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|
4 | if (buf_free_capacity) |
| 2353 | 2 | break; | |
| 2354 | |||
| 2355 | 2 | buf_next_chunk_offset += bytes_read; | |
| 2356 | 2 | size_t grow_by = buf_len; // grow buf exponentially (x2) | |
| 2357 | 2 | void *newptr = realloc(*buf_heapptr, buf_len + grow_by); // Mind possible memory leak | |
| 2358 |
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|
2 | if (!(newptr)) { |
| 2359 | ✗ | fclose(fp); | |
| 2360 | ✗ | free(*buf_heapptr); | |
| 2361 | ✗ | *buf_heapptr = NULL; | |
| 2362 | ✗ | return -1; | |
| 2363 | } | ||
| 2364 | 2 | *buf_heapptr = newptr; | |
| 2365 | 2 | buf_len += grow_by; | |
| 2366 | 2 | buf_free_capacity += grow_by; | |
| 2367 | } | ||
| 2368 | |||
| 2369 | 2 | fclose(fp); | |
| 2370 | 2 | return retval; | |
| 2371 | } | ||
| 2372 | |||
| 2373 | /** | ||
| 2374 | * Iterate over /proc/self/environ strings | ||
| 2375 | * | ||
| 2376 | * @param cb callback to be called for each environ string | ||
| 2377 | * @Return zero on success or -1 on error | ||
| 2378 | */ | ||
| 2379 | #ifndef UNIT_TESTING | ||
| 2380 | static | ||
| 2381 | #endif | ||
| 2382 | 2 | int iter_proc_self_environ(iter_environ_cb cb, char *path, void *data) { | |
| 2383 | char *environ_buf; | ||
| 2384 | 2 | ssize_t read = slurp_file(path, &environ_buf); | |
| 2385 |
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|
2 | if (read < 0) |
| 2386 | ✗ | return -1; | |
| 2387 | |||
| 2388 | size_t ln; | ||
| 2389 | 2 | char *p = environ_buf, *q = p + read; | |
| 2390 |
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|
110 | for (; q != p; p += ln + 1) { |
| 2391 | 108 | ln = strlen(p); | |
| 2392 | 108 | cb(p, ln, data); | |
| 2393 | } | ||
| 2394 | 2 | free(environ_buf); | |
| 2395 | 2 | return 0; | |
| 2396 | } | ||
| 2397 | |||
| 2398 | 2 | static void iter_environ(iter_environ_cb cb) { | |
| 2399 | 2 | char **s = environ; | |
| 2400 |
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|
112 | for (; *s; ++s) { |
| 2401 | 110 | int ln = strlen(*s); | |
| 2402 | 110 | cb(*s, ln, NULL); | |
| 2403 | } | ||
| 2404 | 2 | } | |
| 2405 | |||
| 2406 | #include "envfilter.c" | ||
| 2407 | |||
| 2408 | 110 | static void i360_init_global_server_cb(char *s, size_t ln, __attribute__((unused)) void *data) { | |
| 2409 |
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|
110 | if (i360_need_save_env_variable(s, ln) == 1) { |
| 2410 | 2 | i360_add_func_param(&server_array, s, ln); | |
| 2411 | } | ||
| 2412 | 110 | } | |
| 2413 | |||
| 2414 | 2 | void i360_init_global_server() { | |
| 2415 |
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|
2 | if (server_array.head) { |
| 2416 | ✗ | i360_free_func_params(&server_array); | |
| 2417 | } | ||
| 2418 |
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|
2 | if (environ) |
| 2419 | { | ||
| 2420 | 2 | iter_environ(i360_init_global_server_cb); | |
| 2421 | } | ||
| 2422 | else { | ||
| 2423 | ✗ | iter_proc_self_environ(i360_init_global_server_cb, "/proc/self/environ", NULL); | |
| 2424 | } | ||
| 2425 | 2 | } | |
| 2426 | |||
| 2427 | 1 | void i360_init_global_server_no_env() { | |
| 2428 |
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|
1 | if (server_array.head) { |
| 2429 | 1 | i360_free_func_params(&server_array); | |
| 2430 | } | ||
| 2431 | 1 | } | |
| 2432 | |||
| 2433 | 1 | void i360_add_value_to_global_server(char *key, int len) { | |
| 2434 | 1 | i360_add_func_param(&server_array, key, len); | |
| 2435 | 1 | } | |
| 2436 | |||
| 2437 | 1 | void i360_clean_global_server() { | |
| 2438 | 1 | i360_free_func_params(&server_array); | |
| 2439 | 1 | } | |
| 2440 | |||
| 2441 | 1 | params_list *i360_get_global_server() { | |
| 2442 | 1 | return (params_list *)&server_array; | |
| 2443 | } | ||
| 2444 | |||
| 2445 | #define I360_PARAM_BUF_LEN_QUEUE 15 | ||
| 2446 | |||
| 2447 | 38 | int i360_check_open_read(const char *fname, __attribute__((unused)) char short_name, int recognizer_id, int chain_id) { | |
| 2448 |
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|
38 | if (recognizer_id != I360_RECOGNIZER_ID_COMMON) |
| 2449 | 7 | return 0; | |
| 2450 |
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|
31 | if ((chain_id < PHP_IMUNITY_MIN_ID) || (chain_id > PHP_IMUNITY_MAX_ID)) |
| 2451 | 14 | return 0; | |
| 2452 |
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|
17 | if (!fname) |
| 2453 | 1 | return 0; | |
| 2454 | |||
| 2455 |
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|
16 | if (!strcmp(fname, "file_get_contents")) |
| 2456 | 2 | return 1; | |
| 2457 | |||
| 2458 |
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|
14 | if (strcmp(fname, "fopen")) |
| 2459 | 2 | return 0; | |
| 2460 |
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|
12 | if (i360_get_params_new_numb() < 2) |
| 2461 | 2 | return 0; | |
| 2462 | 10 | int index = 1; | |
| 2463 | 10 | int len = 0; | |
| 2464 | 10 | char *prm = i360_get_params_index_new(&index, &len); | |
| 2465 |
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|
10 | if (!prm || len == 0 || len > 2) |
| 2466 | ✗ | return 0; | |
| 2467 | |||
| 2468 | // check is read | ||
| 2469 | 10 | char sym0 = prm[0]; | |
| 2470 | 10 | char sym1 = 0; | |
| 2471 |
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|
10 | if (len > 1) |
| 2472 | 6 | sym1 = prm[1]; | |
| 2473 | 10 | sym0 = (char)tolower((unsigned char)sym0); | |
| 2474 |
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|
10 | if (sym0 == 'r' && sym1 != '+') |
| 2475 | 4 | return 1; | |
| 2476 | 6 | return 0; | |
| 2477 | } | ||
| 2478 | |||
| 2479 | #define MAX_PEPARED_BUFER_LEN 4096 | ||
| 2480 | #define MAX_PREPARED_ARRAY_LEN 100 | ||
| 2481 | #define MIN_NEEDED_DATA 20 | ||
| 2482 | |||
| 2483 | static char prepared_data_buffer[MAX_PREPARED_ARRAY_LEN][MAX_PEPARED_BUFER_LEN] = {{0}}; | ||
| 2484 | static int last_free_in_prepared_buffer = 0; | ||
| 2485 | static int prepared_data_buffer_done = 0; | ||
| 2486 | |||
| 2487 | 1 | void i360_clear_prepared_buffer() { | |
| 2488 | 1 | memset(prepared_data_buffer, 0, sizeof(prepared_data_buffer)); | |
| 2489 | 1 | last_free_in_prepared_buffer = 0; | |
| 2490 | 1 | prepared_data_buffer_done = 0; | |
| 2491 | 1 | } | |
| 2492 | |||
| 2493 | 1 | void i360_fix_prepared_buffer() { | |
| 2494 | 1 | prepared_data_buffer_done = last_free_in_prepared_buffer; | |
| 2495 | 1 | } | |
| 2496 | |||
| 2497 | // 1 - data added successfully | ||
| 2498 | // -1 - no place for new static data | ||
| 2499 | // 0 - no data added, data is empty | ||
| 2500 | 83 | int i360_add_prepared_buffer_req_data(char *data) { | |
| 2501 |
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|
83 | if (data) { |
| 2502 |
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|
82 | if (last_free_in_prepared_buffer >= (MAX_PREPARED_ARRAY_LEN - MIN_NEEDED_DATA)) { |
| 2503 | 2 | return -1; | |
| 2504 | } | ||
| 2505 | 80 | strncpy(prepared_data_buffer[last_free_in_prepared_buffer], data, MAX_PEPARED_BUFER_LEN - 1); | |
| 2506 | 80 | last_free_in_prepared_buffer++; | |
| 2507 | #if MIN_NEEDED_DATA == 0 | ||
| 2508 | if (last_free_in_prepared_buffer >= MAX_PREPARED_ARRAY_LEN) | ||
| 2509 | last_free_in_prepared_buffer = MAX_PREPARED_ARRAY_LEN - 1; | ||
| 2510 | #endif | ||
| 2511 | 80 | return 1; | |
| 2512 | } | ||
| 2513 | else { | ||
| 2514 | 1 | return 0; | |
| 2515 | } | ||
| 2516 | return 0; | ||
| 2517 | } | ||
| 2518 | |||
| 2519 | 1 | void i360_restore_buffer_for_dynamic() { | |
| 2520 | 1 | last_free_in_prepared_buffer = prepared_data_buffer_done; | |
| 2521 | 1 | } | |
| 2522 | |||
| 2523 | // 1 - data added successfully | ||
| 2524 | // -1 - no place for new dyn data | ||
| 2525 | // 0 - no data added, data is empty | ||
| 2526 | 24 | int i360_add_prepared_buffer_dyn_data(char *data) { | |
| 2527 |
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|
24 | if (data) { |
| 2528 |
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|
23 | if (last_free_in_prepared_buffer >= MAX_PREPARED_ARRAY_LEN) { |
| 2529 | 2 | return -1; | |
| 2530 | }; | ||
| 2531 | 21 | strncpy(prepared_data_buffer[last_free_in_prepared_buffer], data, MAX_PEPARED_BUFER_LEN - 1); | |
| 2532 | 21 | last_free_in_prepared_buffer++; | |
| 2533 | 21 | return 1; | |
| 2534 | } | ||
| 2535 | else { | ||
| 2536 | 1 | return 0; | |
| 2537 | } | ||
| 2538 | return 0; | ||
| 2539 | } | ||
| 2540 | |||
| 2541 | 2 | int i360_is_prepared_buffer_fixed() { | |
| 2542 | 2 | return prepared_data_buffer_done; | |
| 2543 | } | ||
| 2544 | |||
| 2545 | 6 | int i360_prepared_buffer_length() { | |
| 2546 | 6 | return last_free_in_prepared_buffer; | |
| 2547 | } | ||
| 2548 | |||
| 2549 | 2 | char *i360_prepared_buffer_get(int index) { | |
| 2550 |
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|
2 | if (index < 0 || index >= last_free_in_prepared_buffer) |
| 2551 | 1 | return NULL; | |
| 2552 | 1 | return (char *)prepared_data_buffer[index]; | |
| 2553 | } | ||
| 2554 | |||
| 2555 | #include "hs_runtime.h" | ||
| 2556 | #include "database.h" | ||
| 2557 | |||
| 2558 | static int database_fd = -1; | ||
| 2559 | static size_t database_size = 0; | ||
| 2560 | static const i360_pd_database_t *database = NULL; | ||
| 2561 | static hs_scratch_t *scratch = NULL; | ||
| 2562 | |||
| 2563 | 4 | long i360_get_current_db_sig() { | |
| 2564 |
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|
4 | if (database) |
| 2565 | 1 | return (long)database->id; | |
| 2566 |
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|
3 | if (parms_data_g_ptr) |
| 2567 | 1 | return parms_data_g_ptr->signs; | |
| 2568 | 2 | return 0; | |
| 2569 | } | ||
| 2570 | |||
| 2571 | static inline | ||
| 2572 | 412 | const void *i360_pd_database_ptr(i360_pd_database_offset_t offset) { | |
| 2573 |
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|
412 | return (const void *)(offset != 0 && offset != UINT64_MAX ? &((const char*)database)[offset] : NULL); |
| 2574 | } | ||
| 2575 | |||
| 2576 | 5 | static hs_scratch_t *scratch_alloc() { | |
| 2577 | const void *hs; | ||
| 2578 | 5 | hs_scratch_t *scratch = NULL; | |
| 2579 | 5 | const i360_pd_database_offset_t *hss = i360_pd_database_ptr(database->hs); | |
| 2580 |
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|
30 | while ((hs = i360_pd_database_ptr(*(hss++))) != NULL) { |
| 2581 |
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|
25 | if (hs_alloc_scratch((const hs_database_t *)hs, &scratch) != HS_SUCCESS) { |
| 2582 | ✗ | hs_free_scratch(scratch); | |
| 2583 | ✗ | return NULL; | |
| 2584 | } | ||
| 2585 | } | ||
| 2586 | 5 | return scratch; | |
| 2587 | } | ||
| 2588 | |||
| 2589 | 6 | void i360_pd_set_v2_database_paths(char *global_path, char *agent_path) { | |
| 2590 |
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|
6 | if (global_path) { |
| 2591 | 6 | v2_database_paths[0] = global_path; | |
| 2592 | } | ||
| 2593 |
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|
6 | if (agent_path) { |
| 2594 | 1 | v2_database_paths[1] = agent_path; | |
| 2595 | } | ||
| 2596 | 6 | } | |
| 2597 | |||
| 2598 | 5 | int i360_pd_database_init() { | |
| 2599 | struct { | ||
| 2600 | const char *bin_f; | ||
| 2601 | 5 | } options[] = {{v2_database_paths[0]}, {v2_database_paths[1]}}, *next = &options[1]; | |
| 2602 | struct stat rules_vers_st, rules_pack_st; | ||
| 2603 | 5 | int rules_ver_rc = stat(options[0].bin_f, &rules_vers_st); | |
| 2604 | 5 | int rules_pack_rc = stat(options[1].bin_f, &rules_pack_st); | |
| 2605 |
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|
5 | if ((rules_pack_rc == -1) && (rules_ver_rc == -1)) { // no files at all |
| 2606 | ✗ | return 0; | |
| 2607 | } | ||
| 2608 |
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|
5 | else if ((!rules_ver_rc) && (rules_pack_rc == -1)) { // no global rule only agent |
| 2609 | 5 | next = &options[0]; | |
| 2610 | } | ||
| 2611 | ✗ | else if ((!rules_ver_rc) && (rules_vers_st.st_mtime >= rules_pack_st.st_mtime)) { // global present by agents more new | |
| 2612 | // or equal | ||
| 2613 | ✗ | next = &options[0]; | |
| 2614 | } // by default use global. erlier set | ||
| 2615 | 5 | strncpy(current_db_path, next->bin_f, I360_PATH_BUFF-1); | |
| 2616 | |||
| 2617 |
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|
5 | if (hs_valid_platform() != HS_SUCCESS) |
| 2618 | ✗ | return 0; | |
| 2619 | |||
| 2620 |
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|
5 | if (scratch) { |
| 2621 | ✗ | hs_free_scratch(scratch); | |
| 2622 | } | ||
| 2623 | |||
| 2624 |
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|
5 | if (database) { |
| 2625 | ✗ | munmap((void *)database, database_size); | |
| 2626 | } | ||
| 2627 | |||
| 2628 |
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|
5 | if (database_fd >= 0) { |
| 2629 | ✗ | close(database_fd); | |
| 2630 | } | ||
| 2631 | |||
| 2632 | struct stat sb; | ||
| 2633 | 5 | int fd = open(next->bin_f, O_RDONLY); | |
| 2634 |
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|
5 | if (fd == -1) |
| 2635 | ✗ | return 0; | |
| 2636 |
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|
5 | if (fstat(fd, &sb) == -1) { |
| 2637 | ✗ | close(fd); | |
| 2638 | ✗ | return 0; | |
| 2639 | } | ||
| 2640 | 5 | void *ptr = mmap((void *)database, sb.st_size, PROT_READ, MAP_PRIVATE, fd, 0); | |
| 2641 |
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|
5 | if (ptr == MAP_FAILED) { |
| 2642 | ✗ | close(fd); | |
| 2643 | ✗ | return 0; | |
| 2644 | } | ||
| 2645 | 5 | database = (const i360_pd_database_t *)ptr; | |
| 2646 |
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|
5 | if (database->sign != I360_PD_DATABASE_SIGN || database->ver != I360_PD_DATABASE_VER) { |
| 2647 | ✗ | munmap(ptr, sb.st_size); | |
| 2648 | ✗ | close(fd); | |
| 2649 | ✗ | database = NULL; | |
| 2650 | ✗ | return 0; | |
| 2651 | } | ||
| 2652 | 5 | database_fd = fd; | |
| 2653 | 5 | database_size = sb.st_size; | |
| 2654 | 5 | scratch = scratch_alloc(); | |
| 2655 | 5 | return 1; | |
| 2656 | } | ||
| 2657 | |||
| 2658 | 59 | void i360_pd_database_deinit() { | |
| 2659 |
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|
59 | if (scratch) |
| 2660 | 5 | hs_free_scratch(scratch); | |
| 2661 |
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|
59 | if (database != NULL) |
| 2662 | 5 | munmap((void *)database, database_size); | |
| 2663 |
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|
59 | if (database_fd != -1) |
| 2664 | 5 | close(database_fd); | |
| 2665 | 59 | scratch = NULL; | |
| 2666 | 59 | database = NULL; | |
| 2667 | 59 | database_fd = -1; | |
| 2668 | 59 | database_size = 0; | |
| 2669 | 59 | } | |
| 2670 | |||
| 2671 | 3 | static int is_group_enabled(const i360_pd_database_rule_group_t *group, int app_id, int enabled_group) { | |
| 2672 |
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|
3 | if (!group) |
| 2673 | ✗ | return 0; | |
| 2674 |
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|
3 | if ((group->id == enabled_group) && (enabled_group)) |
| 2675 | 2 | return 1; | |
| 2676 |
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|
1 | if (group->enabled) { |
| 2677 |
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|
1 | if (app_id) { |
| 2678 | ✗ | if (group->app_id == app_id) { | |
| 2679 | ✗ | return 1; | |
| 2680 | } | ||
| 2681 | } | ||
| 2682 | else { | ||
| 2683 | 1 | return 1; | |
| 2684 | } | ||
| 2685 | } | ||
| 2686 | ✗ | return 0; | |
| 2687 | } | ||
| 2688 | |||
| 2689 | struct _match_context { | ||
| 2690 | uint64_t *bitmap; | ||
| 2691 | const char *val; | ||
| 2692 | size_t len; | ||
| 2693 | }; | ||
| 2694 | |||
| 2695 | ✗ | static const i360_pd_database_pcre_t *database_pcre(unsigned int offset) { | |
| 2696 | ✗ | const i360_pd_database_offset_t *list = i360_pd_database_ptr(database->pcre); | |
| 2697 | ✗ | return (const i360_pd_database_pcre_t *)i360_pd_database_ptr(list[offset]); | |
| 2698 | } | ||
| 2699 | |||
| 2700 | ✗ | static int match_set_index(unsigned int id, __attribute__((unused)) unsigned long long from, | |
| 2701 | __attribute__((unused)) unsigned long long to, __attribute__((unused)) unsigned int flags, | ||
| 2702 | void *context) { | ||
| 2703 | ✗ | struct _match_context *mctx = (struct _match_context *)context; | |
| 2704 | ✗ | uint64_t *bitmap = mctx->bitmap; | |
| 2705 | ✗ | if (id >= (unsigned int)database->index_pcre) { | |
| 2706 | ✗ | unsigned int offset = id - (unsigned int)database->index_pcre; | |
| 2707 | ✗ | const i360_pd_database_pcre_t *p = database_pcre(offset); | |
| 2708 | int subStrVec[30]; | ||
| 2709 | ✗ | int pcreExecRet = pcre_exec((const pcre *)p->pcre, (const pcre_extra *)i360_pd_database_ptr(p->pcre_extra), | |
| 2710 | ✗ | mctx->val, mctx->len, 0, PCRE_ANCHORED | PCRE_NO_START_OPTIMIZE, subStrVec, 30); | |
| 2711 | ✗ | id = p->index; | |
| 2712 | ✗ | if (pcreExecRet <= 0) | |
| 2713 | ✗ | return HS_SUCCESS; | |
| 2714 | } | ||
| 2715 | ✗ | I360_BITMAP_BIT_SET(bitmap, id); | |
| 2716 | ✗ | return HS_SUCCESS; | |
| 2717 | } | ||
| 2718 | |||
| 2719 | ✗ | static int match_set_index_exclude_list_args(unsigned int id, __attribute__((unused)) unsigned long long from, | |
| 2720 | __attribute__((unused)) unsigned long long to, | ||
| 2721 | __attribute__((unused)) unsigned int flags, void *context) { | ||
| 2722 | ✗ | struct _match_context *mctx = (struct _match_context *)context; | |
| 2723 | ✗ | uint64_t *bitmap = mctx->bitmap; | |
| 2724 | ✗ | if (id >= (unsigned int)database->index_pcre) { | |
| 2725 | ✗ | unsigned int offset = id - (unsigned int)database->index_pcre; | |
| 2726 | ✗ | const i360_pd_database_pcre_t *p = database_pcre(offset); | |
| 2727 | int subStrVec[30]; | ||
| 2728 | ✗ | int pcreExecRet = pcre_exec((const pcre *)p->pcre, (const pcre_extra *)i360_pd_database_ptr(p->pcre_extra), | |
| 2729 | ✗ | mctx->val, mctx->len, 0, PCRE_ANCHORED | PCRE_NO_START_OPTIMIZE, subStrVec, 30); | |
| 2730 | ✗ | if (pcreExecRet <= 0) | |
| 2731 | ✗ | return HS_SUCCESS; | |
| 2732 | } | ||
| 2733 | ✗ | I360_BITMAP_BIT_SET(bitmap, I360_PD_DATABASE_EXCLUDE_LIST_ARGS_BIT); | |
| 2734 | ✗ | I360_BITMAP_BIT_RESET(bitmap, I360_PD_DATABASE_EXCLUDE_LIST_ARGS_NEGATIVE_BIT); | |
| 2735 | ✗ | return HS_SCAN_TERMINATED; | |
| 2736 | } | ||
| 2737 | |||
| 2738 | ✗ | static int match_set_index_exclude_list_script(unsigned int id, __attribute__((unused)) unsigned long long from, | |
| 2739 | __attribute__((unused)) unsigned long long to, | ||
| 2740 | __attribute__((unused)) unsigned int flags, void *context) { | ||
| 2741 | ✗ | struct _match_context *mctx = (struct _match_context *)context; | |
| 2742 | ✗ | uint64_t *bitmap = mctx->bitmap; | |
| 2743 | ✗ | if (id >= (unsigned int)database->index_pcre) { | |
| 2744 | ✗ | unsigned int offset = id - (unsigned int)database->index_pcre; | |
| 2745 | ✗ | const i360_pd_database_pcre_t *p = database_pcre(offset); | |
| 2746 | int subStrVec[30]; | ||
| 2747 | ✗ | int pcreExecRet = pcre_exec((const pcre *)p->pcre, (const pcre_extra *)i360_pd_database_ptr(p->pcre_extra), | |
| 2748 | ✗ | mctx->val, mctx->len, 0, PCRE_ANCHORED | PCRE_NO_START_OPTIMIZE, subStrVec, 30); | |
| 2749 | ✗ | if (pcreExecRet <= 0) | |
| 2750 | ✗ | return HS_SUCCESS; | |
| 2751 | } | ||
| 2752 | ✗ | I360_BITMAP_BIT_RESET(bitmap, I360_PD_DATABASE_EXCLUDE_LIST_SCRIPT_NEGATIVE_BIT); | |
| 2753 | ✗ | return HS_SUCCESS; | |
| 2754 | } | ||
| 2755 | |||
| 2756 | ✗ | static int match_set_index_domain_blak_list_args(unsigned int id, __attribute__((unused)) unsigned long long from, | |
| 2757 | __attribute__((unused)) unsigned long long to, | ||
| 2758 | __attribute__((unused)) unsigned int flags, void *context) { | ||
| 2759 | ✗ | struct _match_context *mctx = (struct _match_context *)context; | |
| 2760 | ✗ | uint64_t *bitmap = mctx->bitmap; | |
| 2761 | ✗ | if (id >= (unsigned int)database->index_pcre) { | |
| 2762 | ✗ | unsigned int offset = id - (unsigned int)database->index_pcre; | |
| 2763 | ✗ | const i360_pd_database_pcre_t *p = database_pcre(offset); | |
| 2764 | int subStrVec[30]; | ||
| 2765 | ✗ | int pcreExecRet = pcre_exec((const pcre *)p->pcre, (const pcre_extra *)i360_pd_database_ptr(p->pcre_extra), | |
| 2766 | ✗ | mctx->val, mctx->len, 0, PCRE_ANCHORED | PCRE_NO_START_OPTIMIZE, subStrVec, 30); | |
| 2767 | ✗ | if (pcreExecRet <= 0) | |
| 2768 | ✗ | return HS_SUCCESS; | |
| 2769 | } | ||
| 2770 | ✗ | I360_BITMAP_BIT_SET(bitmap, I360_PD_DATABASE_BLACK_LIST_BIT); | |
| 2771 | ✗ | return HS_SCAN_TERMINATED; | |
| 2772 | } | ||
| 2773 | |||
| 2774 | 3 | static hs_error_t match_scan(i360_pd_database_offset_t offset, const char *data, unsigned int length, | |
| 2775 | match_event_handler onEvent, uint64_t *bitmap) { | ||
| 2776 | 3 | const void *db = i360_pd_database_ptr(offset); | |
| 2777 |
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|
3 | if (db == NULL) |
| 2778 | ✗ | return HS_INVALID; | |
| 2779 | 3 | struct _match_context mctx = {.bitmap = bitmap, .val = data, .len = length}; | |
| 2780 | 3 | return hs_scan((const hs_database_t *)db, mctx.val, mctx.len, 0, scratch, onEvent, &mctx); | |
| 2781 | } | ||
| 2782 | |||
| 2783 | 3 | static const i360_pd_database_rule_t *match_rules(const i360_pd_database_func_t *func, const char *queue, | |
| 2784 | size_t queue_len, int level, int enabled_group, | ||
| 2785 | 3 | uint64_t *conditions) { | |
| 2786 | 3 | int app_id = i360_get_app_id(); | |
| 2787 | 3 | const char *script = cur_php_fname; | |
| 2788 | 3 | size_t script_len = 0; | |
| 2789 | |||
| 2790 | // Rules match bitmap: 1 means rule triggered, 0 rule did not trigger | ||
| 2791 | 3 | uint64_t bitmap[database->index_size]; | |
| 2792 | 3 | memcpy(bitmap, i360_pd_database_ptr(database->index_init), database->index_size * 8); | |
| 2793 | |||
| 2794 | 3 | bitmap[0] |= func->conditions & (I360_PD_DATABASE_DETECT | I360_PD_DATABASE_ARG | I360_PD_DATABASE_SCRIPT); | |
| 2795 | |||
| 2796 |
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|
3 | if (script) |
| 2797 | 3 | script_len = strlen(script); | |
| 2798 | |||
| 2799 |
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|
3 | if (I360_CONDITION_BIT_ISSET(func->conditions, I360_PD_DATABASE_DETECT_BIT)) { |
| 2800 | 3 | match_scan(func->hs_detect_re, queue, queue_len, match_set_index, bitmap); | |
| 2801 | } | ||
| 2802 |
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|
3 | if (I360_CONDITION_BIT_ISSET(func->conditions, I360_PD_DATABASE_ARG_BIT)) { |
| 2803 | ✗ | if (i360_get_params_new_numb()) { | |
| 2804 | ✗ | int index = 0; | |
| 2805 | ✗ | int len = 0; | |
| 2806 | ✗ | char *prm = i360_get_params_new(&index, &len); | |
| 2807 | ✗ | while (index != -1) { | |
| 2808 | ✗ | hs_error_t rv = match_scan(func->hs_args_re, prm, len, match_set_index, bitmap); | |
| 2809 | ✗ | if (rv != HS_SUCCESS) | |
| 2810 | ✗ | break; | |
| 2811 | ✗ | prm = i360_get_params_new(&index, &len); | |
| 2812 | } | ||
| 2813 | } | ||
| 2814 | } | ||
| 2815 |
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|
3 | if (I360_CONDITION_BIT_ISSET(func->conditions, I360_PD_DATABASE_SCRIPT_BIT) && script_len) { |
| 2816 | ✗ | match_scan(func->hs_script_re, script, script_len, match_set_index, bitmap); | |
| 2817 | } | ||
| 2818 |
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|
3 | if (I360_CONDITION_BIT_ISSET(func->conditions, I360_PD_DATABASE_FILE_OP_NAME_BIT) && i360_get_params_new_numb()) { |
| 2819 | ✗ | int index = 0; | |
| 2820 | ✗ | int len = 0; | |
| 2821 | ✗ | char *prm = i360_get_params_new(&index, &len); | |
| 2822 | ✗ | match_scan(func->hs_file_op_name_re, prm, len, match_set_index, bitmap); | |
| 2823 | } | ||
| 2824 |
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|
3 | if (I360_CONDITION_BIT_ISSET(func->conditions, I360_PD_DATABASE_FILE_OP_CONTENT_BIT) && i360_get_params_new_numb() > 1) { |
| 2825 | ✗ | int index = 1; | |
| 2826 | ✗ | int len = 0; | |
| 2827 | ✗ | char *prm = i360_get_params_new(&index, &len); | |
| 2828 | ✗ | match_scan(func->hs_file_op_content_re, prm, len, match_set_index, bitmap); | |
| 2829 | } | ||
| 2830 |
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|
3 | if (I360_PD_CONDITION_INCLUDES(func->conditions, I360_PD_DATABASE_EXCLUDE_LIST_ARGS | I360_PD_DATABASE_EXCLUDE_LIST_ARGS_NEGATIVE) && |
| 2831 | ✗ | i360_get_params_new_numb()) { | |
| 2832 | ✗ | int index = 0; | |
| 2833 | ✗ | int len = 0; | |
| 2834 | ✗ | char *prm = i360_get_params_new(&index, &len); | |
| 2835 | ✗ | while (index != -1) { | |
| 2836 | ✗ | if (len > G_MIN_HANDLE_STRING_SIZE) { | |
| 2837 | ✗ | hs_error_t rv = match_scan(database->hs_exclude_list, prm, len, match_set_index_exclude_list_args, bitmap); | |
| 2838 | ✗ | if (rv != HS_SUCCESS) { | |
| 2839 | ✗ | break; | |
| 2840 | } | ||
| 2841 | } | ||
| 2842 | ✗ | prm = i360_get_params_new(&index, &len); | |
| 2843 | } | ||
| 2844 | } | ||
| 2845 |
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|
3 | if (I360_CONDITION_BIT_ISSET(func->conditions, I360_PD_DATABASE_EXCLUDE_LIST_SCRIPT_NEGATIVE_BIT) && script && |
| 2846 | script_len > G_MIN_HANDLE_STRING_SIZE) { | ||
| 2847 | ✗ | match_scan(database->hs_exclude_list, script, script_len, match_set_index_exclude_list_script, bitmap); | |
| 2848 | } | ||
| 2849 |
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|
3 | if (I360_CONDITION_BIT_ISSET(func->conditions, I360_PD_DATABASE_BLACK_LIST_BIT) && i360_get_params_new_numb()) { |
| 2850 | ✗ | char domain[MAX_DOMAIN_NAME] = {0}; | |
| 2851 | ✗ | int index = 0; | |
| 2852 | ✗ | int len = 0; | |
| 2853 | ✗ | char *prm = i360_get_params_new(&index, &len); | |
| 2854 | ✗ | while (index != -1) { | |
| 2855 | ✗ | if (len > G_MIN_HANDLE_STRING_SIZE) { | |
| 2856 | ✗ | i360_extract_domain_name(prm, domain, MAX_DOMAIN_NAME); | |
| 2857 | hs_error_t rv = | ||
| 2858 | ✗ | match_scan(database->hs_black_list, domain, strlen(domain), match_set_index_domain_blak_list_args, bitmap); | |
| 2859 | ✗ | if (rv != HS_SUCCESS) { | |
| 2860 | ✗ | break; | |
| 2861 | } | ||
| 2862 | } | ||
| 2863 | ✗ | prm = i360_get_params_new(&index, &len); | |
| 2864 | } | ||
| 2865 | } | ||
| 2866 |
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|
3 | if (I360_CONDITION_BIT_ISSET(func->conditions, I360_PD_DATABASE_MAIL_BIT)) { |
| 2867 | ✗ | if (i360_check_mail_heuristic(i360_pd_database_ptr(func->name))) | |
| 2868 | ✗ | I360_BITMAP_BIT_SET(bitmap, I360_PD_DATABASE_MAIL_BIT); | |
| 2869 | } | ||
| 2870 |
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|
3 | if (I360_CONDITION_BIT_ISSET(func->conditions, I360_PD_DATABASE_FOPEN_READ_NEGATIVE_BIT)) { |
| 2871 | ✗ | const void *fopen = i360_pd_database_ptr(database->fopen); | |
| 2872 | ✗ | if (fopen && fopen == (const void *)func) { | |
| 2873 | ✗ | if (i360_get_params_new_numb() > 1) { | |
| 2874 | ✗ | int index = 1; | |
| 2875 | ✗ | int len = 0; | |
| 2876 | ✗ | char *prm = i360_get_params_new(&index, &len); | |
| 2877 | ✗ | if (((len == 1) && !strncmp(prm, "r", 1)) || ((len == 2) && !strncmp(prm, "rb", 2))) { | |
| 2878 | ✗ | I360_BITMAP_BIT_RESET(bitmap, I360_PD_DATABASE_FOPEN_READ_NEGATIVE_BIT); | |
| 2879 | } | ||
| 2880 | } | ||
| 2881 | } | ||
| 2882 | } | ||
| 2883 |
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|
3 | if (I360_PD_CONDITION_INCLUDES(func->conditions, I360_PD_DATABASE_BLOCK | I360_PD_DATABASE_BLOCK_EXCLUDE)) { |
| 2884 | ✗ | if (i360_precheck_params_for_inclusion()) | |
| 2885 | ✗ | I360_BITMAP_BIT_SET(bitmap, I360_PD_DATABASE_BLOCK_BIT); | |
| 2886 | } | ||
| 2887 |
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|
3 | if (I360_CONDITION_BIT_ISSET(func->conditions, I360_PD_DATABASE_BLOCK_EXCLUDE_BIT)) { |
| 2888 | ✗ | if (I360_BITMAP_BIT_ISSET(bitmap, I360_PD_DATABASE_BLOCK_BIT) || i360_check_exclude_list()) | |
| 2889 | ✗ | I360_BITMAP_BIT_SET(bitmap, I360_PD_DATABASE_BLOCK_EXCLUDE_BIT); | |
| 2890 | } | ||
| 2891 | |||
| 2892 | 3 | const i360_pd_database_offset_t *rules = func->rules; | |
| 2893 | 3 | const i360_pd_database_fp_rule_t *fp = (const i360_pd_database_fp_rule_t *)i360_pd_database_ptr(*rules); | |
| 2894 | // False positive rules | ||
| 2895 |
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|
3 | while (fp) { |
| 2896 | int i; | ||
| 2897 | ✗ | int match = 1; | |
| 2898 | ✗ | for (i = 0; i < database->index_size; i++) { | |
| 2899 | ✗ | if ((bitmap[i] & fp->bitmap[i]) != fp->bitmap[i]) { | |
| 2900 | ✗ | match = 0; | |
| 2901 | ✗ | break; | |
| 2902 | } | ||
| 2903 | } | ||
| 2904 | ✗ | if (match) { | |
| 2905 | ✗ | I360_BITMAP_BIT_RESET(bitmap, I360_PD_DATABASE_FALSE_POSITIVE_BIT); | |
| 2906 | ✗ | I360_BITMAP_BIT_RESET(bitmap, fp->index); | |
| 2907 | } | ||
| 2908 | |||
| 2909 | ✗ | fp = (const i360_pd_database_fp_rule_t *)i360_pd_database_ptr(*(++rules)); | |
| 2910 | } | ||
| 2911 | |||
| 2912 | // Rules | ||
| 2913 | const i360_pd_database_rule_t *rule; | ||
| 2914 |
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|
6 | while ((rule = (const i360_pd_database_rule_t *)i360_pd_database_ptr(*(++rules))) != NULL) { |
| 2915 |
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|
3 | if (is_group_enabled(i360_pd_database_ptr(rule->group), app_id, enabled_group) && (rule->level >= level)) { |
| 2916 | int i; | ||
| 2917 | ✗ | int match = 1; | |
| 2918 | ✗ | for (i = 0; i < database->index_size; i++) { | |
| 2919 | ✗ | if ((bitmap[i] & rule->bitmap[i]) != rule->bitmap[i]) { | |
| 2920 | ✗ | match = 0; | |
| 2921 | ✗ | break; | |
| 2922 | } | ||
| 2923 | } | ||
| 2924 | |||
| 2925 | // Those files which names are whitelisted, we exclude | ||
| 2926 | // exclude them from regex search. Bitmask is used | ||
| 2927 | ✗ | if (cur_wl_rules && (WHITELIST_FILE_VER3 == wl_version) && | |
| 2928 | ✗ | (!((unsigned int *)cur_wl_rules)[0] || | |
| 2929 | ✗ | bsearch(&(rule->id), cur_wl_rules, MAX_WHITELIST_RULES, sizeof(int), i360_wl_item_comp))) | |
| 2930 | ✗ | continue; | |
| 2931 | |||
| 2932 | ✗ | if (cur_wl_rules && (WHITELIST_FILE_VER4 == wl_version) && *(unsigned char *)cur_wl_rules && | |
| 2933 | ✗ | (!((unsigned int *)(cur_wl_rules + 1))[0] || | |
| 2934 | ✗ | bsearch(&(rule->id), cur_wl_rules + 1, *(unsigned char *)cur_wl_rules, sizeof(int), i360_wl_item_comp))) | |
| 2935 | ✗ | continue; | |
| 2936 | |||
| 2937 | // Apply super-rules to every whitelist item | ||
| 2938 | ✗ | if (super_wl_rules && (WHITELIST_FILE_VER3 == wl_version) && | |
| 2939 | ✗ | bsearch(&(rule->id), super_wl_rules, MAX_WHITELIST_RULES, sizeof(int), i360_wl_item_comp)) | |
| 2940 | ✗ | continue; | |
| 2941 | |||
| 2942 | ✗ | if (super_wl_rules && (WHITELIST_FILE_VER4 == wl_version) && super_wl_rules[0] && | |
| 2943 | ✗ | bsearch(&(rule->id), super_wl_rules + 1, *(unsigned char *)super_wl_rules, sizeof(int), i360_wl_item_comp)) | |
| 2944 | ✗ | continue; | |
| 2945 | |||
| 2946 | ✗ | if (match) { | |
| 2947 | ✗ | return rule; | |
| 2948 | } | ||
| 2949 | } | ||
| 2950 | } | ||
| 2951 | |||
| 2952 |
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|
3 | if (conditions) |
| 2953 | 3 | *conditions = bitmap[0]; | |
| 2954 | |||
| 2955 | 3 | return NULL; | |
| 2956 | } | ||
| 2957 | |||
| 2958 | #ifndef UNIT_TESTING | ||
| 2959 | static inline | ||
| 2960 | #endif | ||
| 2961 | 3 | int i360_pd_database_is_args_requirde(const void *dbfunc) { | |
| 2962 | 3 | const i360_pd_database_func_t *func = (const i360_pd_database_func_t *)dbfunc; | |
| 2963 | 3 | return I360_PD_CONDITION_INCLUDES(func->conditions, I360_PD_DATABASE_ARG_BITS) ? 1 : 0; | |
| 2964 | } | ||
| 2965 | |||
| 2966 | #ifndef UNIT_TESTING | ||
| 2967 | static inline | ||
| 2968 | #endif | ||
| 2969 | 4 | int i360_pd_database_is_write_log(const void *dbfunc) { | |
| 2970 | 4 | const i360_pd_database_func_t *func = (const i360_pd_database_func_t *)dbfunc; | |
| 2971 | 4 | return I360_CONDITION_BIT_ISSET(func->conditions, I360_PD_DATABASE_WRITE_LOG_BIT) ? 1 : 0; | |
| 2972 | } | ||
| 2973 | |||
| 2974 | 3 | void i360_pd_database_make_info(const void *dbfunc, char *info) { | |
| 2975 | 3 | const i360_pd_database_func_t *func = (const i360_pd_database_func_t *)dbfunc; | |
| 2976 | 3 | info[0] = func->letter; | |
| 2977 |
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|
3 | info[1] = func->conditions != 0 ? 'd' : '0'; |
| 2978 | 3 | info[2] = '0' + 16 * i360_pd_database_is_args_requirde(dbfunc) + | |
| 2979 | 3 | 16 * i360_pd_database_is_write_log(dbfunc); | |
| 2980 | //if (i360_pd_database_is_args_requirde(dbfunc)) { | ||
| 2981 | //info[2] += 16; | ||
| 2982 | //} | ||
| 2983 | 3 | } | |
| 2984 | |||
| 2985 | 3 | void i360_pd_database_check(chain_result *result, const void *dbfunc, const char *queue, size_t queue_len, int logger, | |
| 2986 | int level, int enabled_group) { | ||
| 2987 | 3 | uint64_t conditions = 0; | |
| 2988 | 3 | const i360_pd_database_func_t *func = (const i360_pd_database_func_t *)dbfunc; | |
| 2989 | 3 | memset(result, 0, sizeof(chain_result)); | |
| 2990 | 3 | result->danger_type = NODANGER; | |
| 2991 | 3 | result->recognizer_id = I360_RECOGNIZER_ID_NONE; | |
| 2992 | |||
| 2993 | /* | ||
| 2994 | * rule stats from 0 to 255 shows how long rules applies to function, where function detects as number by ascii letter | ||
| 2995 | */ | ||
| 2996 | 3 | i360_ull rule_timer = 0; | |
| 2997 | 3 | i360_counter_saver_savetimer(&rule_timer); | |
| 2998 | 3 | const i360_pd_database_rule_t *rule = match_rules(func, queue, queue_len, level, enabled_group, &conditions); | |
| 2999 | 3 | i360_counter_saver_add_rule((unsigned int)((unsigned int)func->letter + STAT_SHIFTER_FUNC), rule_timer); | |
| 3000 |
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|
3 | if (rule) { |
| 3001 | ✗ | if (I360_PD_CONDITION_INCLUDES(rule->bitmap[0], I360_PD_DATABASE_ARG_BITS)) { | |
| 3002 | // Database V1 code uppercase the letters with matching arguments. We have to do the same | ||
| 3003 | // to enable more sophisticated rules after a function was blocked by args | ||
| 3004 | ✗ | i360_queue_buffer_uppercase_last(); | |
| 3005 | } | ||
| 3006 | ✗ | if ((rule->action == BLOCK_FUNC) || (rule->id >= PHP_IMUNITY_MIN_ID && rule->id <= PHP_IMUNITY_MAX_ID)) { | |
| 3007 | ✗ | result->block = 1; | |
| 3008 | } | ||
| 3009 | ✗ | if (rule->action != NO_ACTION && I360_BITMAP_BIT_ISSET(rule->bitmap, I360_PD_DATABASE_BLOCK_EXCLUDE_BIT)) { | |
| 3010 | ✗ | result->block = 2; | |
| 3011 | } | ||
| 3012 | ✗ | result->recognizer_id = I360_RECOGNIZER_ID_COMMON; | |
| 3013 | ✗ | result->chain_id = rule->id; | |
| 3014 | ✗ | result->danger_type = DANGER; | |
| 3015 | ✗ | result->recognizer_desr = I360_RECOGNIZER_ID_COMMON_DESC; | |
| 3016 | ✗ | result->ruldescr = (char *)i360_pd_database_ptr(rule->description); | |
| 3017 | } | ||
| 3018 |
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|
3 | else if (I360_CONDITION_BIT_ISSET(conditions, I360_PD_DATABASE_FALSE_POSITIVE_BIT)) { |
| 3019 | 3 | rules_list *rules = i360_script_default_recognizer(i360_pd_database_ptr(func->name), queue, queue_len); | |
| 3020 |
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|
3 | if (rules) { |
| 3021 | ✗ | if ((rules->action == BLOCK_FUNC) || (rules->id >= PHP_IMUNITY_MIN_ID && rules->id <= PHP_IMUNITY_MAX_ID)) { | |
| 3022 | ✗ | result->block = 1; | |
| 3023 | } | ||
| 3024 | ✗ | if (rules->action != NO_ACTION && rules->check_blocked == 2) { | |
| 3025 | ✗ | result->block = 2; | |
| 3026 | } | ||
| 3027 | ✗ | result->recognizer_id = I360_RECOGNIZER_ID_COMMON; | |
| 3028 | ✗ | result->chain_id = rules->id; | |
| 3029 | ✗ | result->danger_type = DANGER; | |
| 3030 | ✗ | result->recognizer_desr = I360_RECOGNIZER_ID_COMMON_DESC; | |
| 3031 | ✗ | result->ruldescr = rules->description; | |
| 3032 | } | ||
| 3033 | } | ||
| 3034 | |||
| 3035 |
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|
3 | if ((result->chain_id >= G_NON_LOG_RULE_ID) || (i360_is_rce_logger_log_mode() && (result->danger_type == DANGER))) { |
| 3036 | ✗ | result->recognizer_id = I360_RECOGNIZER_ID_INTERNAL; | |
| 3037 | ✗ | result->recognizer_desr = I360_RECOGNIZER_ID_INTERNAL_DESC; | |
| 3038 | } | ||
| 3039 | |||
| 3040 |
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|
3 | if (logger) { |
| 3041 |
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|
3 | if (result->danger_type) { |
| 3042 | ✗ | result->action = LOG_ONLY; | |
| 3043 | } | ||
| 3044 | else { | ||
| 3045 | 3 | result->recognizer_desr = I360_RECOGNIZER_ID_LOG_DESC; | |
| 3046 | 3 | result->action = LOG_ONLY; | |
| 3047 | 3 | result->recognizer_id = I360_RECOGNIZER_ID_LOG; | |
| 3048 | 3 | result->chain_id = 0; | |
| 3049 | 3 | result->danger_type = DANGER; | |
| 3050 | } | ||
| 3051 | } | ||
| 3052 | 3 | } | |
| 3053 | |||
| 3054 | 2 | int i360_pd_database_check_rinit(chain_result *result, int level, int enabled_group, const char *queue, | |
| 3055 | size_t queue_len) { | ||
| 3056 |
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|
2 | if (!database) |
| 3057 | 2 | return 0; | |
| 3058 | |||
| 3059 | ✗ | const i360_pd_database_func_t *rinit = i360_pd_database_ptr(database->rinit); | |
| 3060 | |||
| 3061 | ✗ | if (!rinit) | |
| 3062 | ✗ | return 1; | |
| 3063 | |||
| 3064 | ✗ | i360_ull rule_timer = 0; | |
| 3065 | ✗ | i360_counter_saver_savetimer(&rule_timer); | |
| 3066 | ✗ | const i360_pd_database_rule_t *rule = match_rules(rinit, queue, queue_len, level, enabled_group, NULL); | |
| 3067 | ✗ | i360_counter_saver_add_rule((unsigned int)STAT_RINIT_RULESCHECK_TIME, rule_timer); | |
| 3068 | ✗ | if (rule) { | |
| 3069 | ✗ | if ((rule->action == BLOCK_FUNC) || (rule->id >= PHP_IMUNITY_MIN_ID && rule->id <= PHP_IMUNITY_MAX_ID)) { | |
| 3070 | ✗ | result->block = 1; | |
| 3071 | } | ||
| 3072 | ✗ | if (rule->action != NO_ACTION && I360_BITMAP_BIT_ISSET(rule->bitmap, I360_PD_DATABASE_BLOCK_EXCLUDE_BIT)) { | |
| 3073 | ✗ | result->block = 2; | |
| 3074 | } | ||
| 3075 | ✗ | result->recognizer_id = I360_RECOGNIZER_ID_COMMON; | |
| 3076 | ✗ | result->chain_id = rule->id; | |
| 3077 | ✗ | result->danger_type = DANGER; | |
| 3078 | ✗ | result->recognizer_desr = I360_RECOGNIZER_ID_COMMON_DESC; | |
| 3079 | ✗ | result->ruldescr = (char *)i360_pd_database_ptr(rule->description); | |
| 3080 | } | ||
| 3081 | |||
| 3082 | ✗ | return 1; | |
| 3083 | } | ||
| 3084 | |||
| 3085 | 4 | int i360_pd_database_func_foreach(void (*f)(const char *key, const char *val, int is_danger, int is_openwrite, | |
| 3086 | const void *dbfunc)) { | ||
| 3087 |
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✓ Branch 2 → 4 taken 4 times.
|
4 | if (!database) |
| 3088 | ✗ | return 0; | |
| 3089 | |||
| 3090 | 4 | const i360_pd_database_func_t *func = i360_pd_database_ptr(database->fopen); | |
| 3091 |
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|
4 | if (func != NULL) |
| 3092 | 4 | f(i360_pd_database_ptr(func->name), NULL, (int)(func->letter != 0), | |
| 3093 | 4 | I360_CONDITION_BIT_ISSET(func->conditions, I360_PD_DATABASE_WRITE_LOG_BIT), func); | |
| 3094 | 4 | const i360_pd_database_offset_t *funcs = database->list; | |
| 3095 |
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|
176 | while ((func = i360_pd_database_ptr(*(funcs++))) != NULL) |
| 3096 | 172 | f(i360_pd_database_ptr(func->name), NULL, (int)(func->letter != 0), | |
| 3097 | 172 | I360_CONDITION_BIT_ISSET(func->conditions, I360_PD_DATABASE_WRITE_LOG_BIT), func); | |
| 3098 | |||
| 3099 | 4 | return 1; | |
| 3100 | } | ||
| 3101 | |||
| 3102 | ✗ | uint8_t i360_env_gencrc(uint8_t *data) { | |
| 3103 | ✗ | uint8_t crc = 0xff; | |
| 3104 | size_t i, j; | ||
| 3105 | ✗ | i = 0; | |
| 3106 | ✗ | while (data[i]) { | |
| 3107 | ✗ | crc ^= data[i]; | |
| 3108 | ✗ | for (j = 0; j < 8; j++) { | |
| 3109 | ✗ | if ((crc & 0x80) != 0) | |
| 3110 | ✗ | crc = (uint8_t)((crc << 1) ^ 0x31); | |
| 3111 | else | ||
| 3112 | ✗ | crc <<= 1; | |
| 3113 | } | ||
| 3114 | ✗ | i++; | |
| 3115 | } | ||
| 3116 | ✗ | return crc; | |
| 3117 | } | ||
| 3118 | |||
| 3119 | 130 | int i360_need_save_env_variable(char *variable_name, int var_len) { | |
| 3120 | 130 | int len = var_len; | |
| 3121 | 130 | char *fnd_eq = strchr(variable_name, '='); | |
| 3122 | 130 | int result = 0; | |
| 3123 |
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130 | if (fnd_eq) { |
| 3124 | 124 | len = fnd_eq - variable_name; | |
| 3125 |
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124 | if (len < var_len) { |
| 3126 | 124 | var_len = len; | |
| 3127 | } | ||
| 3128 | } | ||
| 3129 | 130 | result = (i360_env_filter_check(variable_name, var_len) != NULL); | |
| 3130 | 130 | return result; | |
| 3131 | } | ||
| 3132 | |||
| 3133 | static int database_version = 0; | ||
| 3134 | /* | ||
| 3135 | * 0 - old database | ||
| 3136 | * 1 - new hyperscan database | ||
| 3137 | */ | ||
| 3138 | 63 | void i360_set_database_version(int db_version) { | |
| 3139 | 63 | database_version = db_version; | |
| 3140 | 63 | } | |
| 3141 | |||
| 3142 | 2 | int i360_get_database_version() { | |
| 3143 | 2 | return database_version; | |
| 3144 | } | ||
| 3145 |