Mark Salyzyn | 9568705 | 2014-10-02 11:12:28 -0700 | [diff] [blame] | 1 | /* |
| 2 | ** Copyright 2014, The Android Open Source Project |
| 3 | ** |
| 4 | ** Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | ** you may not use this file except in compliance with the License. |
| 6 | ** You may obtain a copy of the License at |
| 7 | ** |
| 8 | ** http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | ** |
| 10 | ** Unless required by applicable law or agreed to in writing, software |
| 11 | ** distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | ** See the License for the specific language governing permissions and |
| 14 | ** limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include <ctype.h> |
Mark Salyzyn | c158456 | 2015-03-12 15:46:29 -0700 | [diff] [blame] | 18 | #include <pthread.h> |
| 19 | #include <stdlib.h> |
Mark Salyzyn | 9568705 | 2014-10-02 11:12:28 -0700 | [diff] [blame] | 20 | #include <string.h> |
Mark Salyzyn | c158456 | 2015-03-12 15:46:29 -0700 | [diff] [blame] | 21 | #define _REALLY_INCLUDE_SYS__SYSTEM_PROPERTIES_H_ |
| 22 | #include <sys/_system_properties.h> |
Mark Salyzyn | 9568705 | 2014-10-02 11:12:28 -0700 | [diff] [blame] | 23 | |
| 24 | #include <android/log.h> |
| 25 | |
Mark Salyzyn | 2d2e0a5 | 2015-11-06 12:26:52 -0800 | [diff] [blame] | 26 | static pthread_mutex_t lock_loggable = PTHREAD_MUTEX_INITIALIZER; |
| 27 | |
Mark Salyzyn | a67d8a5 | 2015-12-21 12:32:48 -0800 | [diff] [blame] | 28 | static int lock() |
Mark Salyzyn | 2d2e0a5 | 2015-11-06 12:26:52 -0800 | [diff] [blame] | 29 | { |
| 30 | /* |
| 31 | * If we trigger a signal handler in the middle of locked activity and the |
| 32 | * signal handler logs a message, we could get into a deadlock state. |
| 33 | */ |
Mark Salyzyn | a67d8a5 | 2015-12-21 12:32:48 -0800 | [diff] [blame] | 34 | /* |
| 35 | * Any contention, and we can turn around and use the non-cached method |
| 36 | * in less time than the system call associated with a mutex to deal with |
| 37 | * the contention. |
| 38 | */ |
| 39 | return pthread_mutex_trylock(&lock_loggable); |
Mark Salyzyn | 2d2e0a5 | 2015-11-06 12:26:52 -0800 | [diff] [blame] | 40 | } |
| 41 | |
| 42 | static void unlock() |
| 43 | { |
| 44 | pthread_mutex_unlock(&lock_loggable); |
| 45 | } |
| 46 | |
Mark Salyzyn | c158456 | 2015-03-12 15:46:29 -0700 | [diff] [blame] | 47 | struct cache { |
| 48 | const prop_info *pinfo; |
| 49 | uint32_t serial; |
Mark Salyzyn | b004a7f | 2015-12-08 14:52:11 -0800 | [diff] [blame] | 50 | unsigned char c; |
Mark Salyzyn | c158456 | 2015-03-12 15:46:29 -0700 | [diff] [blame] | 51 | }; |
| 52 | |
Mark Salyzyn | a67d8a5 | 2015-12-21 12:32:48 -0800 | [diff] [blame] | 53 | static int check_cache(struct cache *cache) |
| 54 | { |
| 55 | return cache->pinfo |
| 56 | && __system_property_serial(cache->pinfo) != cache->serial; |
| 57 | } |
| 58 | |
Mark Salyzyn | ffbd86f | 2015-12-04 10:59:45 -0800 | [diff] [blame] | 59 | #define BOOLEAN_TRUE 0xFF |
| 60 | #define BOOLEAN_FALSE 0xFE |
| 61 | |
Mark Salyzyn | c158456 | 2015-03-12 15:46:29 -0700 | [diff] [blame] | 62 | static void refresh_cache(struct cache *cache, const char *key) |
Mark Salyzyn | 9568705 | 2014-10-02 11:12:28 -0700 | [diff] [blame] | 63 | { |
Mark Salyzyn | c158456 | 2015-03-12 15:46:29 -0700 | [diff] [blame] | 64 | uint32_t serial; |
Mark Salyzyn | 9568705 | 2014-10-02 11:12:28 -0700 | [diff] [blame] | 65 | char buf[PROP_VALUE_MAX]; |
| 66 | |
Mark Salyzyn | c158456 | 2015-03-12 15:46:29 -0700 | [diff] [blame] | 67 | if (!cache->pinfo) { |
| 68 | cache->pinfo = __system_property_find(key); |
| 69 | if (!cache->pinfo) { |
| 70 | return; |
| 71 | } |
Mark Salyzyn | a67d8a5 | 2015-12-21 12:32:48 -0800 | [diff] [blame] | 72 | cache->serial = -1; |
Mark Salyzyn | 9568705 | 2014-10-02 11:12:28 -0700 | [diff] [blame] | 73 | } |
Mark Salyzyn | c158456 | 2015-03-12 15:46:29 -0700 | [diff] [blame] | 74 | serial = __system_property_serial(cache->pinfo); |
| 75 | if (serial == cache->serial) { |
| 76 | return; |
| 77 | } |
| 78 | cache->serial = serial; |
| 79 | __system_property_read(cache->pinfo, 0, buf); |
Mark Salyzyn | ffbd86f | 2015-12-04 10:59:45 -0800 | [diff] [blame] | 80 | switch(buf[0]) { |
| 81 | case 't': case 'T': |
| 82 | cache->c = strcasecmp(buf + 1, "rue") ? buf[0] : BOOLEAN_TRUE; |
| 83 | break; |
| 84 | case 'f': case 'F': |
| 85 | cache->c = strcasecmp(buf + 1, "alse") ? buf[0] : BOOLEAN_FALSE; |
| 86 | break; |
| 87 | default: |
| 88 | cache->c = buf[0]; |
| 89 | } |
Mark Salyzyn | c158456 | 2015-03-12 15:46:29 -0700 | [diff] [blame] | 90 | } |
Mark Salyzyn | 9568705 | 2014-10-02 11:12:28 -0700 | [diff] [blame] | 91 | |
Mark Salyzyn | 2d2e0a5 | 2015-11-06 12:26:52 -0800 | [diff] [blame] | 92 | static int __android_log_level(const char *tag, int default_prio) |
Mark Salyzyn | c158456 | 2015-03-12 15:46:29 -0700 | [diff] [blame] | 93 | { |
| 94 | /* sizeof() is used on this array below */ |
| 95 | static const char log_namespace[] = "persist.log.tag."; |
| 96 | static const size_t base_offset = 8; /* skip "persist." */ |
| 97 | /* calculate the size of our key temporary buffer */ |
| 98 | const size_t taglen = (tag && *tag) ? strlen(tag) : 0; |
| 99 | /* sizeof(log_namespace) = strlen(log_namespace) + 1 */ |
Mark Salyzyn | a67d8a5 | 2015-12-21 12:32:48 -0800 | [diff] [blame] | 100 | char key[sizeof(log_namespace) + taglen]; /* may be > PROPERTY_KEY_MAX */ |
Mark Salyzyn | c158456 | 2015-03-12 15:46:29 -0700 | [diff] [blame] | 101 | char *kp; |
| 102 | size_t i; |
| 103 | char c = 0; |
| 104 | /* |
| 105 | * Single layer cache of four properties. Priorities are: |
| 106 | * log.tag.<tag> |
| 107 | * persist.log.tag.<tag> |
| 108 | * log.tag |
| 109 | * persist.log.tag |
| 110 | * Where the missing tag matches all tags and becomes the |
| 111 | * system global default. We do not support ro.log.tag* . |
| 112 | */ |
Colin Cross | 7a106f7 | 2016-01-29 16:21:31 -0800 | [diff] [blame] | 113 | static char last_tag[PROP_NAME_MAX]; |
Mark Salyzyn | c158456 | 2015-03-12 15:46:29 -0700 | [diff] [blame] | 114 | static uint32_t global_serial; |
Mark Salyzyn | 31ca3c3 | 2015-12-22 10:49:02 -0800 | [diff] [blame] | 115 | /* some compilers erroneously see uninitialized use. !not_locked */ |
| 116 | uint32_t current_global_serial = 0; |
Mark Salyzyn | a67d8a5 | 2015-12-21 12:32:48 -0800 | [diff] [blame] | 117 | static struct cache tag_cache[2]; |
| 118 | static struct cache global_cache[2]; |
| 119 | int change_detected; |
| 120 | int global_change_detected; |
| 121 | int not_locked; |
Mark Salyzyn | c158456 | 2015-03-12 15:46:29 -0700 | [diff] [blame] | 122 | |
| 123 | strcpy(key, log_namespace); |
| 124 | |
Mark Salyzyn | a67d8a5 | 2015-12-21 12:32:48 -0800 | [diff] [blame] | 125 | global_change_detected = change_detected = not_locked = lock(); |
Mark Salyzyn | c158456 | 2015-03-12 15:46:29 -0700 | [diff] [blame] | 126 | |
Mark Salyzyn | a67d8a5 | 2015-12-21 12:32:48 -0800 | [diff] [blame] | 127 | if (!not_locked) { |
| 128 | /* |
| 129 | * check all known serial numbers to changes. |
| 130 | */ |
| 131 | for (i = 0; i < (sizeof(tag_cache) / sizeof(tag_cache[0])); ++i) { |
| 132 | if (check_cache(&tag_cache[i])) { |
| 133 | change_detected = 1; |
| 134 | } |
| 135 | } |
| 136 | for (i = 0; i < (sizeof(global_cache) / sizeof(global_cache[0])); ++i) { |
| 137 | if (check_cache(&global_cache[i])) { |
| 138 | global_change_detected = 1; |
| 139 | } |
| 140 | } |
| 141 | |
| 142 | current_global_serial = __system_property_area_serial(); |
| 143 | if (current_global_serial != global_serial) { |
| 144 | change_detected = 1; |
| 145 | global_change_detected = 1; |
| 146 | } |
| 147 | } |
Mark Salyzyn | c158456 | 2015-03-12 15:46:29 -0700 | [diff] [blame] | 148 | |
| 149 | if (taglen) { |
Mark Salyzyn | a67d8a5 | 2015-12-21 12:32:48 -0800 | [diff] [blame] | 150 | int local_change_detected = change_detected; |
| 151 | if (!not_locked) { |
Colin Cross | 7a106f7 | 2016-01-29 16:21:31 -0800 | [diff] [blame] | 152 | if (!last_tag[0] |
Mark Salyzyn | a67d8a5 | 2015-12-21 12:32:48 -0800 | [diff] [blame] | 153 | || (last_tag[0] != tag[0]) |
Colin Cross | 7a106f7 | 2016-01-29 16:21:31 -0800 | [diff] [blame] | 154 | || strncmp(last_tag + 1, tag + 1, sizeof(last_tag) - 1)) { |
Mark Salyzyn | a67d8a5 | 2015-12-21 12:32:48 -0800 | [diff] [blame] | 155 | /* invalidate log.tag.<tag> cache */ |
| 156 | for (i = 0; i < (sizeof(tag_cache) / sizeof(tag_cache[0])); ++i) { |
| 157 | tag_cache[i].pinfo = NULL; |
| 158 | tag_cache[i].c = '\0'; |
| 159 | } |
Colin Cross | 7a106f7 | 2016-01-29 16:21:31 -0800 | [diff] [blame] | 160 | last_tag[0] = '\0'; |
Mark Salyzyn | a67d8a5 | 2015-12-21 12:32:48 -0800 | [diff] [blame] | 161 | local_change_detected = 1; |
Mark Salyzyn | c158456 | 2015-03-12 15:46:29 -0700 | [diff] [blame] | 162 | } |
Colin Cross | 7a106f7 | 2016-01-29 16:21:31 -0800 | [diff] [blame] | 163 | if (!last_tag[0]) { |
| 164 | strncpy(last_tag, tag, sizeof(last_tag)); |
Mark Salyzyn | a67d8a5 | 2015-12-21 12:32:48 -0800 | [diff] [blame] | 165 | } |
Mark Salyzyn | c158456 | 2015-03-12 15:46:29 -0700 | [diff] [blame] | 166 | } |
Mark Salyzyn | 9568705 | 2014-10-02 11:12:28 -0700 | [diff] [blame] | 167 | strcpy(key + sizeof(log_namespace) - 1, tag); |
| 168 | |
Mark Salyzyn | c158456 | 2015-03-12 15:46:29 -0700 | [diff] [blame] | 169 | kp = key; |
Mark Salyzyn | a67d8a5 | 2015-12-21 12:32:48 -0800 | [diff] [blame] | 170 | for (i = 0; i < (sizeof(tag_cache) / sizeof(tag_cache[0])); ++i) { |
| 171 | struct cache *cache = &tag_cache[i]; |
| 172 | struct cache temp_cache; |
| 173 | |
| 174 | if (not_locked) { |
| 175 | temp_cache.pinfo = NULL; |
| 176 | temp_cache.c = '\0'; |
| 177 | cache = &temp_cache; |
| 178 | } |
| 179 | if (local_change_detected) { |
| 180 | refresh_cache(cache, kp); |
Mark Salyzyn | c158456 | 2015-03-12 15:46:29 -0700 | [diff] [blame] | 181 | } |
| 182 | |
Mark Salyzyn | a67d8a5 | 2015-12-21 12:32:48 -0800 | [diff] [blame] | 183 | if (cache->c) { |
| 184 | c = cache->c; |
Mark Salyzyn | c158456 | 2015-03-12 15:46:29 -0700 | [diff] [blame] | 185 | break; |
| 186 | } |
| 187 | |
| 188 | kp = key + base_offset; |
Mark Salyzyn | 1f028b2 | 2014-10-08 15:58:40 -0700 | [diff] [blame] | 189 | } |
Mark Salyzyn | 9568705 | 2014-10-02 11:12:28 -0700 | [diff] [blame] | 190 | } |
Mark Salyzyn | c158456 | 2015-03-12 15:46:29 -0700 | [diff] [blame] | 191 | |
| 192 | switch (toupper(c)) { /* if invalid, resort to global */ |
| 193 | case 'V': |
| 194 | case 'D': |
| 195 | case 'I': |
| 196 | case 'W': |
| 197 | case 'E': |
| 198 | case 'F': /* Not officially supported */ |
| 199 | case 'A': |
| 200 | case 'S': |
Mark Salyzyn | ffbd86f | 2015-12-04 10:59:45 -0800 | [diff] [blame] | 201 | case BOOLEAN_FALSE: /* Not officially supported */ |
Mark Salyzyn | c158456 | 2015-03-12 15:46:29 -0700 | [diff] [blame] | 202 | break; |
| 203 | default: |
| 204 | /* clear '.' after log.tag */ |
| 205 | key[sizeof(log_namespace) - 2] = '\0'; |
| 206 | |
| 207 | kp = key; |
Mark Salyzyn | a67d8a5 | 2015-12-21 12:32:48 -0800 | [diff] [blame] | 208 | for (i = 0; i < (sizeof(global_cache) / sizeof(global_cache[0])); ++i) { |
| 209 | struct cache *cache = &global_cache[i]; |
| 210 | struct cache temp_cache; |
| 211 | |
| 212 | if (not_locked) { |
| 213 | temp_cache = *cache; |
| 214 | if (temp_cache.pinfo != cache->pinfo) { /* check atomic */ |
| 215 | temp_cache.pinfo = NULL; |
| 216 | temp_cache.c = '\0'; |
| 217 | } |
| 218 | cache = &temp_cache; |
| 219 | } |
| 220 | if (global_change_detected) { |
| 221 | refresh_cache(cache, kp); |
Mark Salyzyn | c158456 | 2015-03-12 15:46:29 -0700 | [diff] [blame] | 222 | } |
| 223 | |
Mark Salyzyn | a67d8a5 | 2015-12-21 12:32:48 -0800 | [diff] [blame] | 224 | if (cache->c) { |
| 225 | c = cache->c; |
Mark Salyzyn | c158456 | 2015-03-12 15:46:29 -0700 | [diff] [blame] | 226 | break; |
| 227 | } |
| 228 | |
| 229 | kp = key + base_offset; |
| 230 | } |
| 231 | break; |
| 232 | } |
| 233 | |
Mark Salyzyn | a67d8a5 | 2015-12-21 12:32:48 -0800 | [diff] [blame] | 234 | if (!not_locked) { |
| 235 | global_serial = current_global_serial; |
| 236 | unlock(); |
| 237 | } |
Mark Salyzyn | c158456 | 2015-03-12 15:46:29 -0700 | [diff] [blame] | 238 | |
| 239 | switch (toupper(c)) { |
| 240 | case 'V': return ANDROID_LOG_VERBOSE; |
| 241 | case 'D': return ANDROID_LOG_DEBUG; |
| 242 | case 'I': return ANDROID_LOG_INFO; |
| 243 | case 'W': return ANDROID_LOG_WARN; |
| 244 | case 'E': return ANDROID_LOG_ERROR; |
| 245 | case 'F': /* FALLTHRU */ /* Not officially supported */ |
| 246 | case 'A': return ANDROID_LOG_FATAL; |
Mark Salyzyn | ffbd86f | 2015-12-04 10:59:45 -0800 | [diff] [blame] | 247 | case BOOLEAN_FALSE: /* FALLTHRU */ /* Not Officially supported */ |
Mark Salyzyn | c158456 | 2015-03-12 15:46:29 -0700 | [diff] [blame] | 248 | case 'S': return -1; /* ANDROID_LOG_SUPPRESS */ |
Mark Salyzyn | 9568705 | 2014-10-02 11:12:28 -0700 | [diff] [blame] | 249 | } |
Mark Salyzyn | 2d2e0a5 | 2015-11-06 12:26:52 -0800 | [diff] [blame] | 250 | return default_prio; |
Mark Salyzyn | 9568705 | 2014-10-02 11:12:28 -0700 | [diff] [blame] | 251 | } |
| 252 | |
Mark Salyzyn | 2d2e0a5 | 2015-11-06 12:26:52 -0800 | [diff] [blame] | 253 | int __android_log_is_loggable(int prio, const char *tag, int default_prio) |
Mark Salyzyn | 9568705 | 2014-10-02 11:12:28 -0700 | [diff] [blame] | 254 | { |
Mark Salyzyn | 2d2e0a5 | 2015-11-06 12:26:52 -0800 | [diff] [blame] | 255 | int logLevel = __android_log_level(tag, default_prio); |
Mark Salyzyn | 9568705 | 2014-10-02 11:12:28 -0700 | [diff] [blame] | 256 | return logLevel >= 0 && prio >= logLevel; |
| 257 | } |
Mark Salyzyn | 500afc7 | 2015-09-08 08:32:01 -0700 | [diff] [blame] | 258 | |
Mark Salyzyn | 2d2e0a5 | 2015-11-06 12:26:52 -0800 | [diff] [blame] | 259 | /* |
Mark Salyzyn | a67d8a5 | 2015-12-21 12:32:48 -0800 | [diff] [blame] | 260 | * For properties that are read often, but generally remain constant. |
| 261 | * Since a change is rare, we will accept a trylock failure gracefully. |
| 262 | * Use a separate lock from is_loggable to keep contention down b/25563384. |
Mark Salyzyn | 2d2e0a5 | 2015-11-06 12:26:52 -0800 | [diff] [blame] | 263 | */ |
Mark Salyzyn | a67d8a5 | 2015-12-21 12:32:48 -0800 | [diff] [blame] | 264 | struct cache2 { |
| 265 | pthread_mutex_t lock; |
| 266 | uint32_t serial; |
| 267 | const char *key_persist; |
| 268 | struct cache cache_persist; |
| 269 | const char *key_ro; |
| 270 | struct cache cache_ro; |
| 271 | unsigned char (*const evaluate)(const struct cache2 *self); |
| 272 | }; |
Mark Salyzyn | 2d2e0a5 | 2015-11-06 12:26:52 -0800 | [diff] [blame] | 273 | |
Mark Salyzyn | a67d8a5 | 2015-12-21 12:32:48 -0800 | [diff] [blame] | 274 | static inline unsigned char do_cache2(struct cache2 *self) |
Mark Salyzyn | 500afc7 | 2015-09-08 08:32:01 -0700 | [diff] [blame] | 275 | { |
Mark Salyzyn | a67d8a5 | 2015-12-21 12:32:48 -0800 | [diff] [blame] | 276 | uint32_t current_serial; |
| 277 | int change_detected; |
| 278 | unsigned char c; |
Mark Salyzyn | 500afc7 | 2015-09-08 08:32:01 -0700 | [diff] [blame] | 279 | |
Mark Salyzyn | a67d8a5 | 2015-12-21 12:32:48 -0800 | [diff] [blame] | 280 | if (pthread_mutex_trylock(&self->lock)) { |
Mark Salyzyn | 2d2e0a5 | 2015-11-06 12:26:52 -0800 | [diff] [blame] | 281 | /* We are willing to accept some race in this context */ |
Mark Salyzyn | a67d8a5 | 2015-12-21 12:32:48 -0800 | [diff] [blame] | 282 | return self->evaluate(self); |
Mark Salyzyn | 500afc7 | 2015-09-08 08:32:01 -0700 | [diff] [blame] | 283 | } |
Mark Salyzyn | 500afc7 | 2015-09-08 08:32:01 -0700 | [diff] [blame] | 284 | |
Mark Salyzyn | a67d8a5 | 2015-12-21 12:32:48 -0800 | [diff] [blame] | 285 | change_detected = check_cache(&self->cache_persist) |
| 286 | || check_cache(&self->cache_ro); |
| 287 | current_serial = __system_property_area_serial(); |
| 288 | if (current_serial != self->serial) { |
| 289 | change_detected = 1; |
| 290 | } |
| 291 | if (change_detected) { |
| 292 | refresh_cache(&self->cache_persist, self->key_persist); |
| 293 | refresh_cache(&self->cache_ro, self->key_ro); |
| 294 | self->serial = current_serial; |
| 295 | } |
| 296 | c = self->evaluate(self); |
| 297 | |
| 298 | pthread_mutex_unlock(&self->lock); |
| 299 | |
| 300 | return c; |
| 301 | } |
| 302 | |
| 303 | static unsigned char evaluate_persist_ro(const struct cache2 *self) |
| 304 | { |
| 305 | unsigned char c = self->cache_persist.c; |
| 306 | |
| 307 | if (c) { |
| 308 | return c; |
| 309 | } |
| 310 | |
| 311 | return self->cache_ro.c; |
Mark Salyzyn | 500afc7 | 2015-09-08 08:32:01 -0700 | [diff] [blame] | 312 | } |
Mark Salyzyn | ffbd86f | 2015-12-04 10:59:45 -0800 | [diff] [blame] | 313 | |
| 314 | /* |
Mark Salyzyn | a67d8a5 | 2015-12-21 12:32:48 -0800 | [diff] [blame] | 315 | * Timestamp state generally remains constant, but can change at any time |
| 316 | * to handle developer requirements. |
Mark Salyzyn | ffbd86f | 2015-12-04 10:59:45 -0800 | [diff] [blame] | 317 | */ |
Mark Salyzyn | a67d8a5 | 2015-12-21 12:32:48 -0800 | [diff] [blame] | 318 | clockid_t android_log_clockid() |
| 319 | { |
| 320 | static struct cache2 clockid = { |
| 321 | PTHREAD_MUTEX_INITIALIZER, |
| 322 | 0, |
| 323 | "persist.logd.timestamp", |
| 324 | { NULL, -1, '\0' }, |
| 325 | "ro.logd.timestamp", |
| 326 | { NULL, -1, '\0' }, |
| 327 | evaluate_persist_ro |
| 328 | }; |
| 329 | |
| 330 | return (tolower(do_cache2(&clockid)) == 'm') |
| 331 | ? CLOCK_MONOTONIC |
| 332 | : CLOCK_REALTIME; |
| 333 | } |
| 334 | |
| 335 | /* |
| 336 | * Security state generally remains constant, but the DO must be able |
| 337 | * to turn off logging should it become spammy after an attack is detected. |
| 338 | */ |
| 339 | static unsigned char evaluate_security(const struct cache2 *self) |
| 340 | { |
| 341 | unsigned char c = self->cache_ro.c; |
| 342 | |
| 343 | return (c != BOOLEAN_FALSE) && c && (self->cache_persist.c == BOOLEAN_TRUE); |
| 344 | } |
Mark Salyzyn | ffbd86f | 2015-12-04 10:59:45 -0800 | [diff] [blame] | 345 | |
| 346 | int __android_log_security() |
| 347 | { |
Mark Salyzyn | a67d8a5 | 2015-12-21 12:32:48 -0800 | [diff] [blame] | 348 | static struct cache2 security = { |
| 349 | PTHREAD_MUTEX_INITIALIZER, |
| 350 | 0, |
| 351 | "persist.logd.security", |
| 352 | { NULL, -1, BOOLEAN_FALSE }, |
| 353 | "ro.device_owner", |
| 354 | { NULL, -1, BOOLEAN_FALSE }, |
| 355 | evaluate_security |
| 356 | }; |
Mark Salyzyn | ffbd86f | 2015-12-04 10:59:45 -0800 | [diff] [blame] | 357 | |
Mark Salyzyn | a67d8a5 | 2015-12-21 12:32:48 -0800 | [diff] [blame] | 358 | return do_cache2(&security); |
Mark Salyzyn | ffbd86f | 2015-12-04 10:59:45 -0800 | [diff] [blame] | 359 | } |