/* * Copyright (C) 2013 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include <gtest/gtest.h> #include <sys/wait.h> #include <errno.h> #include <unistd.h> #include <string> #if defined(__BIONIC__) #define _REALLY_INCLUDE_SYS__SYSTEM_PROPERTIES_H_ #include <sys/_system_properties.h> extern void *__system_property_area__; struct LocalPropertyTestState { LocalPropertyTestState() : valid(false) { const char* ANDROID_DATA = getenv("ANDROID_DATA"); char dir_template[PATH_MAX]; snprintf(dir_template, sizeof(dir_template), "%s/local/tmp/prop-XXXXXX", ANDROID_DATA); char* dirname = mkdtemp(dir_template); if (!dirname) { fprintf(stderr, "making temp file for test state failed (is %s writable?): %s", dir_template, strerror(errno)); return; } old_pa = __system_property_area__; __system_property_area__ = NULL; pa_dirname = dirname; pa_filename = pa_dirname + "/__properties__"; __system_property_set_filename(pa_filename.c_str()); __system_property_area_init(); valid = true; } ~LocalPropertyTestState() { if (!valid) { return; } __system_property_area__ = old_pa; __system_property_set_filename(PROP_FILENAME); unlink(pa_filename.c_str()); rmdir(pa_dirname.c_str()); } public: bool valid; private: std::string pa_dirname; std::string pa_filename; void *old_pa; }; static void foreach_test_callback(const prop_info *pi, void* cookie) { size_t *count = static_cast<size_t *>(cookie); ASSERT_NE((prop_info *)NULL, pi); (*count)++; } static void hierarchical_test_callback(const prop_info *pi, void *cookie) { bool (*ok)[8][8] = static_cast<bool (*)[8][8]>(cookie); char name[PROP_NAME_MAX]; char value[PROP_VALUE_MAX]; __system_property_read(pi, name, value); int name_i, name_j, name_k; int value_i, value_j, value_k; ASSERT_EQ(3, sscanf(name, "property_%d.%d.%d", &name_i, &name_j, &name_k)); ASSERT_EQ(3, sscanf(value, "value_%d.%d.%d", &value_i, &value_j, &value_k)); ASSERT_EQ(name_i, value_i); ASSERT_GE(name_i, 0); ASSERT_LT(name_i, 8); ASSERT_EQ(name_j, value_j); ASSERT_GE(name_j, 0); ASSERT_LT(name_j, 8); ASSERT_EQ(name_k, value_k); ASSERT_GE(name_k, 0); ASSERT_LT(name_k, 8); ok[name_i][name_j][name_k] = true; } static void *PropertyWaitHelperFn(void *arg) { int *flag = (int *)arg; prop_info *pi; pi = (prop_info *)__system_property_find("property"); usleep(100000); *flag = 1; __system_property_update(pi, "value3", 6); return NULL; } #endif // __BIONIC__ TEST(properties, add) { #if defined(__BIONIC__) LocalPropertyTestState pa; ASSERT_TRUE(pa.valid); char propvalue[PROP_VALUE_MAX]; ASSERT_EQ(0, __system_property_add("property", 8, "value1", 6)); ASSERT_EQ(0, __system_property_add("other_property", 14, "value2", 6)); ASSERT_EQ(0, __system_property_add("property_other", 14, "value3", 6)); ASSERT_EQ(6, __system_property_get("property", propvalue)); ASSERT_STREQ(propvalue, "value1"); ASSERT_EQ(6, __system_property_get("other_property", propvalue)); ASSERT_STREQ(propvalue, "value2"); ASSERT_EQ(6, __system_property_get("property_other", propvalue)); ASSERT_STREQ(propvalue, "value3"); #else // __BIONIC__ GTEST_LOG_(INFO) << "This test does nothing.\n"; #endif // __BIONIC__ } TEST(properties, update) { #if defined(__BIONIC__) LocalPropertyTestState pa; ASSERT_TRUE(pa.valid); char propvalue[PROP_VALUE_MAX]; prop_info *pi; ASSERT_EQ(0, __system_property_add("property", 8, "oldvalue1", 9)); ASSERT_EQ(0, __system_property_add("other_property", 14, "value2", 6)); ASSERT_EQ(0, __system_property_add("property_other", 14, "value3", 6)); pi = (prop_info *)__system_property_find("property"); ASSERT_NE((prop_info *)NULL, pi); __system_property_update(pi, "value4", 6); pi = (prop_info *)__system_property_find("other_property"); ASSERT_NE((prop_info *)NULL, pi); __system_property_update(pi, "newvalue5", 9); pi = (prop_info *)__system_property_find("property_other"); ASSERT_NE((prop_info *)NULL, pi); __system_property_update(pi, "value6", 6); ASSERT_EQ(6, __system_property_get("property", propvalue)); ASSERT_STREQ(propvalue, "value4"); ASSERT_EQ(9, __system_property_get("other_property", propvalue)); ASSERT_STREQ(propvalue, "newvalue5"); ASSERT_EQ(6, __system_property_get("property_other", propvalue)); ASSERT_STREQ(propvalue, "value6"); #else // __BIONIC__ GTEST_LOG_(INFO) << "This test does nothing.\n"; #endif // __BIONIC__ } TEST(properties, fill) { #if defined(__BIONIC__) LocalPropertyTestState pa; ASSERT_TRUE(pa.valid); char prop_name[PROP_NAME_MAX]; char prop_value[PROP_VALUE_MAX]; char prop_value_ret[PROP_VALUE_MAX]; int count = 0; int ret; while (true) { ret = snprintf(prop_name, PROP_NAME_MAX - 1, "property_%d", count); memset(prop_name + ret, 'a', PROP_NAME_MAX - 1 - ret); ret = snprintf(prop_value, PROP_VALUE_MAX - 1, "value_%d", count); memset(prop_value + ret, 'b', PROP_VALUE_MAX - 1 - ret); prop_name[PROP_NAME_MAX - 1] = 0; prop_value[PROP_VALUE_MAX - 1] = 0; ret = __system_property_add(prop_name, PROP_NAME_MAX - 1, prop_value, PROP_VALUE_MAX - 1); if (ret < 0) break; count++; } // For historical reasons at least 247 properties must be supported ASSERT_GE(count, 247); for (int i = 0; i < count; i++) { ret = snprintf(prop_name, PROP_NAME_MAX - 1, "property_%d", i); memset(prop_name + ret, 'a', PROP_NAME_MAX - 1 - ret); ret = snprintf(prop_value, PROP_VALUE_MAX - 1, "value_%d", i); memset(prop_value + ret, 'b', PROP_VALUE_MAX - 1 - ret); prop_name[PROP_NAME_MAX - 1] = 0; prop_value[PROP_VALUE_MAX - 1] = 0; memset(prop_value_ret, '\0', PROP_VALUE_MAX); ASSERT_EQ(PROP_VALUE_MAX - 1, __system_property_get(prop_name, prop_value_ret)); ASSERT_EQ(0, memcmp(prop_value, prop_value_ret, PROP_VALUE_MAX)); } #else // __BIONIC__ GTEST_LOG_(INFO) << "This test does nothing.\n"; #endif // __BIONIC__ } TEST(properties, foreach) { #if defined(__BIONIC__) LocalPropertyTestState pa; ASSERT_TRUE(pa.valid); size_t count = 0; ASSERT_EQ(0, __system_property_add("property", 8, "value1", 6)); ASSERT_EQ(0, __system_property_add("other_property", 14, "value2", 6)); ASSERT_EQ(0, __system_property_add("property_other", 14, "value3", 6)); ASSERT_EQ(0, __system_property_foreach(foreach_test_callback, &count)); ASSERT_EQ(3U, count); #else // __BIONIC__ GTEST_LOG_(INFO) << "This test does nothing.\n"; #endif // __BIONIC__ } TEST(properties, find_nth) { #if defined(__BIONIC__) LocalPropertyTestState pa; ASSERT_TRUE(pa.valid); ASSERT_EQ(0, __system_property_add("property", 8, "value1", 6)); ASSERT_EQ(0, __system_property_add("other_property", 14, "value2", 6)); ASSERT_EQ(0, __system_property_add("property_other", 14, "value3", 6)); ASSERT_NE((const prop_info *)NULL, __system_property_find_nth(0)); ASSERT_NE((const prop_info *)NULL, __system_property_find_nth(1)); ASSERT_NE((const prop_info *)NULL, __system_property_find_nth(2)); ASSERT_EQ((const prop_info *)NULL, __system_property_find_nth(3)); ASSERT_EQ((const prop_info *)NULL, __system_property_find_nth(4)); ASSERT_EQ((const prop_info *)NULL, __system_property_find_nth(5)); ASSERT_EQ((const prop_info *)NULL, __system_property_find_nth(100)); ASSERT_EQ((const prop_info *)NULL, __system_property_find_nth(200)); ASSERT_EQ((const prop_info *)NULL, __system_property_find_nth(247)); #else // __BIONIC__ GTEST_LOG_(INFO) << "This test does nothing.\n"; #endif // __BIONIC__ } TEST(properties, fill_hierarchical) { #if defined(__BIONIC__) LocalPropertyTestState pa; ASSERT_TRUE(pa.valid); char prop_name[PROP_NAME_MAX]; char prop_value[PROP_VALUE_MAX]; char prop_value_ret[PROP_VALUE_MAX]; int ret; for (int i = 0; i < 8; i++) { for (int j = 0; j < 8; j++) { for (int k = 0; k < 8; k++) { ret = snprintf(prop_name, PROP_NAME_MAX - 1, "property_%d.%d.%d", i, j, k); memset(prop_name + ret, 'a', PROP_NAME_MAX - 1 - ret); ret = snprintf(prop_value, PROP_VALUE_MAX - 1, "value_%d.%d.%d", i, j, k); memset(prop_value + ret, 'b', PROP_VALUE_MAX - 1 - ret); prop_name[PROP_NAME_MAX - 1] = 0; prop_value[PROP_VALUE_MAX - 1] = 0; ASSERT_EQ(0, __system_property_add(prop_name, PROP_NAME_MAX - 1, prop_value, PROP_VALUE_MAX - 1)); } } } for (int i = 0; i < 8; i++) { for (int j = 0; j < 8; j++) { for (int k = 0; k < 8; k++) { ret = snprintf(prop_name, PROP_NAME_MAX - 1, "property_%d.%d.%d", i, j, k); memset(prop_name + ret, 'a', PROP_NAME_MAX - 1 - ret); ret = snprintf(prop_value, PROP_VALUE_MAX - 1, "value_%d.%d.%d", i, j, k); memset(prop_value + ret, 'b', PROP_VALUE_MAX - 1 - ret); prop_name[PROP_NAME_MAX - 1] = 0; prop_value[PROP_VALUE_MAX - 1] = 0; memset(prop_value_ret, '\0', PROP_VALUE_MAX); ASSERT_EQ(PROP_VALUE_MAX - 1, __system_property_get(prop_name, prop_value_ret)); ASSERT_EQ(0, memcmp(prop_value, prop_value_ret, PROP_VALUE_MAX)); } } } bool ok[8][8][8]; memset(ok, 0, sizeof(ok)); __system_property_foreach(hierarchical_test_callback, ok); for (int i = 0; i < 8; i++) { for (int j = 0; j < 8; j++) { for (int k = 0; k < 8; k++) { ASSERT_TRUE(ok[i][j][k]); } } } #else // __BIONIC__ GTEST_LOG_(INFO) << "This test does nothing.\n"; #endif // __BIONIC__ } TEST(properties, errors) { #if defined(__BIONIC__) LocalPropertyTestState pa; ASSERT_TRUE(pa.valid); char prop_value[PROP_NAME_MAX]; ASSERT_EQ(0, __system_property_add("property", 8, "value1", 6)); ASSERT_EQ(0, __system_property_add("other_property", 14, "value2", 6)); ASSERT_EQ(0, __system_property_add("property_other", 14, "value3", 6)); ASSERT_EQ(0, __system_property_find("property1")); ASSERT_EQ(0, __system_property_get("property1", prop_value)); ASSERT_EQ(-1, __system_property_add("name", PROP_NAME_MAX, "value", 5)); ASSERT_EQ(-1, __system_property_add("name", 4, "value", PROP_VALUE_MAX)); ASSERT_EQ(-1, __system_property_update(NULL, "value", PROP_VALUE_MAX)); #else // __BIONIC__ GTEST_LOG_(INFO) << "This test does nothing.\n"; #endif // __BIONIC__ } TEST(properties, serial) { #if defined(__BIONIC__) LocalPropertyTestState pa; ASSERT_TRUE(pa.valid); const prop_info *pi; unsigned int serial; ASSERT_EQ(0, __system_property_add("property", 8, "value1", 6)); ASSERT_NE((const prop_info *)NULL, pi = __system_property_find("property")); serial = __system_property_serial(pi); ASSERT_EQ(0, __system_property_update((prop_info *)pi, "value2", 6)); ASSERT_NE(serial, __system_property_serial(pi)); #else // __BIONIC__ GTEST_LOG_(INFO) << "This test does nothing.\n"; #endif // __BIONIC__ } TEST(properties, wait) { #if defined(__BIONIC__) LocalPropertyTestState pa; ASSERT_TRUE(pa.valid); unsigned int serial; prop_info *pi; pthread_t t; int flag = 0; ASSERT_EQ(0, __system_property_add("property", 8, "value1", 6)); serial = __system_property_wait_any(0); pi = (prop_info *)__system_property_find("property"); ASSERT_NE((prop_info *)NULL, pi); __system_property_update(pi, "value2", 6); serial = __system_property_wait_any(serial); ASSERT_EQ(0, pthread_create(&t, NULL, PropertyWaitHelperFn, &flag)); ASSERT_EQ(flag, 0); serial = __system_property_wait_any(serial); ASSERT_EQ(flag, 1); void* result; ASSERT_EQ(0, pthread_join(t, &result)); #else // __BIONIC__ GTEST_LOG_(INFO) << "This test does nothing.\n"; #endif // __BIONIC__ } class KilledByFault { public: explicit KilledByFault() {}; bool operator()(int exit_status) const; }; bool KilledByFault::operator()(int exit_status) const { return WIFSIGNALED(exit_status) && (WTERMSIG(exit_status) == SIGSEGV || WTERMSIG(exit_status) == SIGBUS || WTERMSIG(exit_status) == SIGABRT); } TEST(properties_DeathTest, read_only) { #if defined(__BIONIC__) ::testing::FLAGS_gtest_death_test_style = "threadsafe"; // This test only makes sense if we're talking to the real system property service. struct stat sb; if (stat(PROP_FILENAME, &sb) == -1 && errno == ENOENT) { return; } ASSERT_EXIT(__system_property_add("property", 8, "value", 5), KilledByFault(), ""); #else // __BIONIC__ GTEST_LOG_(INFO) << "This test does nothing.\n"; #endif // __BIONIC__ }