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910 lines
28 KiB
910 lines
28 KiB
/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <ctype.h>
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#include <fcntl.h>
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#include <inttypes.h>
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#include <poll.h>
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#include <signal.h>
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#include <stdio.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <string>
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#include <android-base/file.h>
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#include <android-base/macros.h>
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#include <android-base/stringprintf.h>
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#include <android-base/unique_fd.h>
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#include <cutils/sockets.h>
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#include <gtest/gtest-death-test.h>
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#include <gtest/gtest.h>
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#include <log/log_read.h>
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#include <private/android_filesystem_config.h>
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#include <private/android_logger.h>
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#ifdef __ANDROID__
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#include <selinux/selinux.h>
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#endif
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#include "LogUtils.h" // For LOGD_SNDTIMEO.
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using android::base::unique_fd;
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#ifdef __ANDROID__
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static void send_to_control(char* buf, size_t len) {
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int sock = socket_local_client("logd", ANDROID_SOCKET_NAMESPACE_RESERVED,
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SOCK_STREAM);
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if (sock >= 0) {
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if (write(sock, buf, strlen(buf) + 1) > 0) {
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ssize_t ret;
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while ((ret = read(sock, buf, len)) > 0) {
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if (((size_t)ret == len) || (len < PAGE_SIZE)) {
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break;
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}
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len -= ret;
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buf += ret;
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struct pollfd p = {.fd = sock, .events = POLLIN, .revents = 0 };
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ret = poll(&p, 1, 20);
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if ((ret <= 0) || !(p.revents & POLLIN)) {
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break;
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}
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}
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}
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close(sock);
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}
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}
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/*
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* returns statistics
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*/
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static void my_android_logger_get_statistics(char* buf, size_t len) {
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snprintf(buf, len, "getStatistics 0 1 2 3 4");
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send_to_control(buf, len);
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}
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static void alloc_statistics(char** buffer, size_t* length) {
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size_t len = 8192;
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char* buf;
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for (int retry = 32; (retry >= 0); delete[] buf, --retry) {
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buf = new char[len];
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my_android_logger_get_statistics(buf, len);
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buf[len - 1] = '\0';
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size_t ret = atol(buf) + 1;
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if (ret < 4) {
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delete[] buf;
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buf = nullptr;
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break;
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}
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bool check = ret <= len;
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len = ret;
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if (check) {
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break;
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}
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len += len / 8; // allow for some slop
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}
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*buffer = buf;
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*length = len;
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}
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static char* find_benchmark_spam(char* cp) {
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// liblog_benchmarks has been run designed to SPAM. The signature of
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// a noisiest UID statistics is:
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//
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// Chattiest UIDs in main log buffer: Size Pruned
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// UID PACKAGE BYTES LINES
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// 0 root 54164 147569
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//
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char* benchmark = nullptr;
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do {
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static const char signature[] = "\n0 root ";
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benchmark = strstr(cp, signature);
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if (!benchmark) {
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break;
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}
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cp = benchmark + sizeof(signature);
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while (isspace(*cp)) {
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++cp;
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}
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benchmark = cp;
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#ifdef DEBUG
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char* end = strstr(benchmark, "\n");
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if (end == nullptr) {
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end = benchmark + strlen(benchmark);
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}
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fprintf(stderr, "parse for spam counter in \"%.*s\"\n",
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(int)(end - benchmark), benchmark);
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#endif
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// content
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while (isdigit(*cp)) {
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++cp;
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}
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while (isspace(*cp)) {
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++cp;
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}
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// optional +/- field?
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if ((*cp == '-') || (*cp == '+')) {
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while (isdigit(*++cp) || (*cp == '.') || (*cp == '%') ||
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(*cp == 'X')) {
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;
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}
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while (isspace(*cp)) {
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++cp;
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}
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}
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// number of entries pruned
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unsigned long value = 0;
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while (isdigit(*cp)) {
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value = value * 10ULL + *cp - '0';
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++cp;
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}
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if (value > 10UL) {
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break;
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}
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benchmark = nullptr;
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} while (*cp);
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return benchmark;
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}
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#endif
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#ifdef LOGD_ENABLE_FLAKY_TESTS
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TEST(logd, statistics) {
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#ifdef __ANDROID__
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size_t len;
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char* buf;
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// Drop cache so that any access problems can be discovered.
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if (!android::base::WriteStringToFile("3\n", "/proc/sys/vm/drop_caches")) {
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GTEST_LOG_(INFO) << "Could not open trigger dropping inode cache";
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}
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alloc_statistics(&buf, &len);
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ASSERT_TRUE(nullptr != buf);
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// remove trailing FF
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char* cp = buf + len - 1;
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*cp = '\0';
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bool truncated = *--cp != '\f';
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if (!truncated) {
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*cp = '\0';
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}
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// squash out the byte count
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cp = buf;
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if (!truncated) {
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while (isdigit(*cp) || (*cp == '\n')) {
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++cp;
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}
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}
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fprintf(stderr, "%s", cp);
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EXPECT_LT((size_t)64, strlen(cp));
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EXPECT_EQ(0, truncated);
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char* main_logs = strstr(cp, "\nChattiest UIDs in main ");
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EXPECT_TRUE(nullptr != main_logs);
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char* radio_logs = strstr(cp, "\nChattiest UIDs in radio ");
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if (!radio_logs)
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GTEST_LOG_(INFO) << "Value of: nullptr != radio_logs\n"
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"Actual: false\n"
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"Expected: false\n";
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char* system_logs = strstr(cp, "\nChattiest UIDs in system ");
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EXPECT_TRUE(nullptr != system_logs);
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char* events_logs = strstr(cp, "\nChattiest UIDs in events ");
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EXPECT_TRUE(nullptr != events_logs);
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// Check if there is any " u0_a#### " as this means packagelistparser broken
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char* used_getpwuid = nullptr;
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int used_getpwuid_len;
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char* uid_name = cp;
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static const char getpwuid_prefix[] = " u0_a";
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while ((uid_name = strstr(uid_name, getpwuid_prefix)) != nullptr) {
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used_getpwuid = uid_name + 1;
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uid_name += strlen(getpwuid_prefix);
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while (isdigit(*uid_name)) ++uid_name;
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used_getpwuid_len = uid_name - used_getpwuid;
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if (isspace(*uid_name)) break;
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used_getpwuid = nullptr;
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}
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EXPECT_TRUE(nullptr == used_getpwuid);
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if (used_getpwuid) {
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fprintf(stderr, "libpackagelistparser failed to pick up %.*s\n",
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used_getpwuid_len, used_getpwuid);
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}
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delete[] buf;
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#else
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GTEST_LOG_(INFO) << "This test does nothing.\n";
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#endif
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}
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#endif
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#ifdef __ANDROID__
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static void caught_signal(int /* signum */) {
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}
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static void dump_log_msg(const char* prefix, log_msg* msg, int lid) {
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std::cout << std::flush;
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std::cerr << std::flush;
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fflush(stdout);
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fflush(stderr);
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EXPECT_GE(msg->entry.hdr_size, sizeof(logger_entry));
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fprintf(stderr, "%s: [%u] ", prefix, msg->len());
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fprintf(stderr, "hdr_size=%u ", msg->entry.hdr_size);
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fprintf(stderr, "pid=%u tid=%u %u.%09u ", msg->entry.pid, msg->entry.tid, msg->entry.sec,
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msg->entry.nsec);
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lid = msg->entry.lid;
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switch (lid) {
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case 0:
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fprintf(stderr, "lid=main ");
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break;
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case 1:
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fprintf(stderr, "lid=radio ");
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break;
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case 2:
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fprintf(stderr, "lid=events ");
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break;
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case 3:
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fprintf(stderr, "lid=system ");
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break;
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case 4:
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fprintf(stderr, "lid=crash ");
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break;
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case 5:
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fprintf(stderr, "lid=security ");
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break;
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case 6:
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fprintf(stderr, "lid=kernel ");
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break;
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default:
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if (lid >= 0) {
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fprintf(stderr, "lid=%d ", lid);
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}
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}
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unsigned int len = msg->entry.len;
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fprintf(stderr, "msg[%u]={", len);
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unsigned char* cp = reinterpret_cast<unsigned char*>(msg->msg());
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if (!cp) {
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static const unsigned char garbage[] = "<INVALID>";
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cp = const_cast<unsigned char*>(garbage);
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len = strlen(reinterpret_cast<const char*>(garbage));
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}
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while (len) {
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unsigned char* p = cp;
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while (*p && (((' ' <= *p) && (*p < 0x7F)) || (*p == '\n'))) {
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++p;
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}
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if (((p - cp) > 3) && !*p && ((unsigned int)(p - cp) < len)) {
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fprintf(stderr, "\"");
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while (*cp) {
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if (*cp != '\n') {
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fprintf(stderr, "%c", *cp);
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} else {
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fprintf(stderr, "\\n");
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}
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++cp;
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--len;
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}
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fprintf(stderr, "\"");
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} else {
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fprintf(stderr, "%02x", *cp);
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}
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++cp;
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if (--len) {
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fprintf(stderr, ", ");
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}
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}
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fprintf(stderr, "}\n");
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fflush(stderr);
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}
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#endif
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#ifdef __ANDROID__
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// BAD ROBOT
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// Benchmark threshold are generally considered bad form unless there is
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// is some human love applied to the continued maintenance and whether the
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// thresholds are tuned on a per-target basis. Here we check if the values
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// are more than double what is expected. Doubling will not prevent failure
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// on busy or low-end systems that could have a tendency to stretch values.
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//
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// The primary goal of this test is to simulate a spammy app (benchmark
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// being the worst) and check to make sure the logger can deal with it
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// appropriately by checking all the statistics are in an expected range.
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//
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TEST(logd, benchmark) {
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size_t len;
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char* buf;
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alloc_statistics(&buf, &len);
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bool benchmark_already_run = buf && find_benchmark_spam(buf);
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delete[] buf;
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if (benchmark_already_run) {
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fprintf(stderr,
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"WARNING: spam already present and too much history\n"
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" false OK for prune by worst UID check\n");
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}
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FILE* fp;
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// Introduce some extreme spam for the worst UID filter
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ASSERT_TRUE(
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nullptr !=
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(fp = popen("/data/nativetest/liblog-benchmarks/liblog-benchmarks"
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" BM_log_maximum_retry"
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" BM_log_maximum"
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" BM_clock_overhead"
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" BM_log_print_overhead"
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" BM_log_latency"
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" BM_log_delay",
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"r")));
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char buffer[5120];
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static const char* benchmarks[] = {
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"BM_log_maximum_retry ", "BM_log_maximum ", "BM_clock_overhead ",
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"BM_log_print_overhead ", "BM_log_latency ", "BM_log_delay "
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};
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static const unsigned int log_maximum_retry = 0;
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static const unsigned int log_maximum = 1;
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static const unsigned int clock_overhead = 2;
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static const unsigned int log_print_overhead = 3;
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static const unsigned int log_latency = 4;
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static const unsigned int log_delay = 5;
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unsigned long ns[arraysize(benchmarks)];
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memset(ns, 0, sizeof(ns));
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while (fgets(buffer, sizeof(buffer), fp)) {
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for (unsigned i = 0; i < arraysize(ns); ++i) {
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char* cp = strstr(buffer, benchmarks[i]);
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if (!cp) {
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continue;
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}
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sscanf(cp, "%*s %lu %lu", &ns[i], &ns[i]);
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fprintf(stderr, "%-22s%8lu\n", benchmarks[i], ns[i]);
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}
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}
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int ret = pclose(fp);
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if (!WIFEXITED(ret) || (WEXITSTATUS(ret) == 127)) {
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fprintf(stderr,
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"WARNING: "
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"/data/nativetest/liblog-benchmarks/liblog-benchmarks missing\n"
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" can not perform test\n");
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return;
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}
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EXPECT_GE(200000UL, ns[log_maximum_retry]); // 104734 user
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EXPECT_NE(0UL, ns[log_maximum_retry]); // failure to parse
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EXPECT_GE(90000UL, ns[log_maximum]); // 46913 user
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EXPECT_NE(0UL, ns[log_maximum]); // failure to parse
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EXPECT_GE(4096UL, ns[clock_overhead]); // 4095
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EXPECT_NE(0UL, ns[clock_overhead]); // failure to parse
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EXPECT_GE(250000UL, ns[log_print_overhead]); // 126886 user
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EXPECT_NE(0UL, ns[log_print_overhead]); // failure to parse
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EXPECT_GE(10000000UL,
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ns[log_latency]); // 1453559 user space (background cgroup)
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EXPECT_NE(0UL, ns[log_latency]); // failure to parse
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EXPECT_GE(20000000UL, ns[log_delay]); // 10500289 user
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EXPECT_NE(0UL, ns[log_delay]); // failure to parse
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alloc_statistics(&buf, &len);
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bool collected_statistics = !!buf;
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EXPECT_EQ(true, collected_statistics);
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ASSERT_TRUE(nullptr != buf);
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char* benchmark_statistics_found = find_benchmark_spam(buf);
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ASSERT_TRUE(benchmark_statistics_found != nullptr);
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// Check how effective the SPAM filter is, parse out Now size.
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// 0 root 54164 147569
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// ^-- benchmark_statistics_found
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unsigned long nowSpamSize = atol(benchmark_statistics_found);
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delete[] buf;
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ASSERT_NE(0UL, nowSpamSize);
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// Determine if we have the spam filter enabled
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int sock = socket_local_client("logd", ANDROID_SOCKET_NAMESPACE_RESERVED,
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SOCK_STREAM);
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ASSERT_TRUE(sock >= 0);
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static const char getPruneList[] = "getPruneList";
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if (write(sock, getPruneList, sizeof(getPruneList)) > 0) {
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char buffer[80];
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memset(buffer, 0, sizeof(buffer));
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read(sock, buffer, sizeof(buffer));
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char* cp = strchr(buffer, '\n');
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if (!cp || (cp[1] != '~') || (cp[2] != '!')) {
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close(sock);
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fprintf(stderr,
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"WARNING: "
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"Logger has SPAM filtration turned off \"%s\"\n",
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buffer);
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return;
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}
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} else {
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int save_errno = errno;
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close(sock);
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FAIL() << "Can not send " << getPruneList << " to logger -- "
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<< strerror(save_errno);
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}
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static const unsigned long expected_absolute_minimum_log_size = 65536UL;
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unsigned long totalSize = expected_absolute_minimum_log_size;
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static const char getSize[] = { 'g', 'e', 't', 'L', 'o', 'g',
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'S', 'i', 'z', 'e', ' ', LOG_ID_MAIN + '0',
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'\0' };
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if (write(sock, getSize, sizeof(getSize)) > 0) {
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char buffer[80];
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memset(buffer, 0, sizeof(buffer));
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read(sock, buffer, sizeof(buffer));
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totalSize = atol(buffer);
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if (totalSize < expected_absolute_minimum_log_size) {
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fprintf(stderr,
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"WARNING: "
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"Logger had unexpected referenced size \"%s\"\n",
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buffer);
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totalSize = expected_absolute_minimum_log_size;
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}
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}
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close(sock);
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// logd allows excursions to 110% of total size
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totalSize = (totalSize * 11) / 10;
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// 50% threshold for SPAM filter (<20% typical, lots of engineering margin)
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ASSERT_GT(totalSize, nowSpamSize * 2);
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}
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#endif
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// b/26447386 confirm fixed
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void timeout_negative(const char* command) {
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#ifdef __ANDROID__
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log_msg msg_wrap, msg_timeout;
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bool content_wrap = false, content_timeout = false, written = false;
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unsigned int alarm_wrap = 0, alarm_timeout = 0;
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// A few tries to get it right just in case wrap kicks in due to
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// content providers being active during the test.
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int i = 3;
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while (--i) {
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int fd = socket_local_client("logdr", ANDROID_SOCKET_NAMESPACE_RESERVED,
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SOCK_SEQPACKET);
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ASSERT_LT(0, fd);
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std::string ask(command);
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struct sigaction ignore, old_sigaction;
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memset(&ignore, 0, sizeof(ignore));
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ignore.sa_handler = caught_signal;
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sigemptyset(&ignore.sa_mask);
|
|
sigaction(SIGALRM, &ignore, &old_sigaction);
|
|
unsigned int old_alarm = alarm(3);
|
|
|
|
size_t len = ask.length() + 1;
|
|
written = write(fd, ask.c_str(), len) == (ssize_t)len;
|
|
if (!written) {
|
|
alarm(old_alarm);
|
|
sigaction(SIGALRM, &old_sigaction, nullptr);
|
|
close(fd);
|
|
continue;
|
|
}
|
|
|
|
// alarm triggers at 50% of the --wrap time out
|
|
content_wrap = recv(fd, msg_wrap.buf, sizeof(msg_wrap), 0) > 0;
|
|
|
|
alarm_wrap = alarm(5);
|
|
|
|
// alarm triggers at 133% of the --wrap time out
|
|
content_timeout = recv(fd, msg_timeout.buf, sizeof(msg_timeout), 0) > 0;
|
|
if (!content_timeout) { // make sure we hit dumpAndClose
|
|
content_timeout =
|
|
recv(fd, msg_timeout.buf, sizeof(msg_timeout), 0) > 0;
|
|
}
|
|
|
|
if (old_alarm > 0) {
|
|
unsigned int time_spent = 3 - alarm_wrap;
|
|
if (old_alarm > time_spent + 1) {
|
|
old_alarm -= time_spent;
|
|
} else {
|
|
old_alarm = 2;
|
|
}
|
|
}
|
|
alarm_timeout = alarm(old_alarm);
|
|
sigaction(SIGALRM, &old_sigaction, nullptr);
|
|
|
|
close(fd);
|
|
|
|
if (content_wrap && alarm_wrap && content_timeout && alarm_timeout) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (content_wrap) {
|
|
dump_log_msg("wrap", &msg_wrap, -1);
|
|
}
|
|
|
|
if (content_timeout) {
|
|
dump_log_msg("timeout", &msg_timeout, -1);
|
|
}
|
|
|
|
EXPECT_TRUE(written);
|
|
EXPECT_TRUE(content_wrap);
|
|
EXPECT_NE(0U, alarm_wrap);
|
|
EXPECT_TRUE(content_timeout);
|
|
EXPECT_NE(0U, alarm_timeout);
|
|
#else
|
|
command = nullptr;
|
|
GTEST_LOG_(INFO) << "This test does nothing.\n";
|
|
#endif
|
|
}
|
|
|
|
TEST(logd, timeout_no_start) {
|
|
timeout_negative("dumpAndClose lids=0,1,2,3,4,5 timeout=6");
|
|
}
|
|
|
|
TEST(logd, timeout_start_epoch) {
|
|
timeout_negative(
|
|
"dumpAndClose lids=0,1,2,3,4,5 timeout=6 start=0.000000000");
|
|
}
|
|
|
|
#ifdef ENABLE_FLAKY_TESTS
|
|
// b/26447386 refined behavior
|
|
TEST(logd, timeout) {
|
|
#ifdef __ANDROID__
|
|
// b/33962045 This test interferes with other log reader tests that
|
|
// follow because of file descriptor socket persistence in the same
|
|
// process. So let's fork it to isolate it from giving us pain.
|
|
|
|
pid_t pid = fork();
|
|
|
|
if (pid) {
|
|
siginfo_t info = {};
|
|
ASSERT_EQ(0, TEMP_FAILURE_RETRY(waitid(P_PID, pid, &info, WEXITED)));
|
|
ASSERT_EQ(0, info.si_status);
|
|
return;
|
|
}
|
|
|
|
log_msg msg_wrap, msg_timeout;
|
|
bool content_wrap = false, content_timeout = false, written = false;
|
|
unsigned int alarm_wrap = 0, alarm_timeout = 0;
|
|
// A few tries to get it right just in case wrap kicks in due to
|
|
// content providers being active during the test.
|
|
int i = 5;
|
|
log_time start(CLOCK_REALTIME);
|
|
start.tv_sec -= 30; // reach back a moderate period of time
|
|
|
|
while (--i) {
|
|
int fd = socket_local_client("logdr", ANDROID_SOCKET_NAMESPACE_RESERVED,
|
|
SOCK_SEQPACKET);
|
|
int save_errno = errno;
|
|
if (fd < 0) {
|
|
fprintf(stderr, "failed to open /dev/socket/logdr %s\n",
|
|
strerror(save_errno));
|
|
_exit(fd);
|
|
}
|
|
|
|
std::string ask = android::base::StringPrintf(
|
|
"dumpAndClose lids=0,1,2,3,4,5 timeout=6 start=%" PRIu32
|
|
".%09" PRIu32,
|
|
start.tv_sec, start.tv_nsec);
|
|
|
|
struct sigaction ignore, old_sigaction;
|
|
memset(&ignore, 0, sizeof(ignore));
|
|
ignore.sa_handler = caught_signal;
|
|
sigemptyset(&ignore.sa_mask);
|
|
sigaction(SIGALRM, &ignore, &old_sigaction);
|
|
unsigned int old_alarm = alarm(3);
|
|
|
|
size_t len = ask.length() + 1;
|
|
written = write(fd, ask.c_str(), len) == (ssize_t)len;
|
|
if (!written) {
|
|
alarm(old_alarm);
|
|
sigaction(SIGALRM, &old_sigaction, nullptr);
|
|
close(fd);
|
|
continue;
|
|
}
|
|
|
|
// alarm triggers at 50% of the --wrap time out
|
|
content_wrap = recv(fd, msg_wrap.buf, sizeof(msg_wrap), 0) > 0;
|
|
|
|
alarm_wrap = alarm(5);
|
|
|
|
// alarm triggers at 133% of the --wrap time out
|
|
content_timeout = recv(fd, msg_timeout.buf, sizeof(msg_timeout), 0) > 0;
|
|
if (!content_timeout) { // make sure we hit dumpAndClose
|
|
content_timeout =
|
|
recv(fd, msg_timeout.buf, sizeof(msg_timeout), 0) > 0;
|
|
}
|
|
|
|
if (old_alarm > 0) {
|
|
unsigned int time_spent = 3 - alarm_wrap;
|
|
if (old_alarm > time_spent + 1) {
|
|
old_alarm -= time_spent;
|
|
} else {
|
|
old_alarm = 2;
|
|
}
|
|
}
|
|
alarm_timeout = alarm(old_alarm);
|
|
sigaction(SIGALRM, &old_sigaction, nullptr);
|
|
|
|
close(fd);
|
|
|
|
if (!content_wrap && !alarm_wrap && content_timeout && alarm_timeout) {
|
|
break;
|
|
}
|
|
|
|
// modify start time in case content providers are relatively
|
|
// active _or_ inactive during the test.
|
|
if (content_timeout) {
|
|
log_time msg(msg_timeout.entry.sec, msg_timeout.entry.nsec);
|
|
if (msg < start) {
|
|
fprintf(stderr, "%u.%09u < %u.%09u\n", msg_timeout.entry.sec,
|
|
msg_timeout.entry.nsec, (unsigned)start.tv_sec,
|
|
(unsigned)start.tv_nsec);
|
|
_exit(-1);
|
|
}
|
|
if (msg > start) {
|
|
start = msg;
|
|
start.tv_sec += 30;
|
|
log_time now = log_time(CLOCK_REALTIME);
|
|
if (start > now) {
|
|
start = now;
|
|
--start.tv_sec;
|
|
}
|
|
}
|
|
} else {
|
|
start.tv_sec -= 120; // inactive, reach further back!
|
|
}
|
|
}
|
|
|
|
if (content_wrap) {
|
|
dump_log_msg("wrap", &msg_wrap, -1);
|
|
}
|
|
|
|
if (content_timeout) {
|
|
dump_log_msg("timeout", &msg_timeout, -1);
|
|
}
|
|
|
|
if (content_wrap || !content_timeout) {
|
|
fprintf(stderr, "start=%" PRIu32 ".%09" PRIu32 "\n", start.tv_sec,
|
|
start.tv_nsec);
|
|
}
|
|
|
|
EXPECT_TRUE(written);
|
|
EXPECT_FALSE(content_wrap);
|
|
EXPECT_EQ(0U, alarm_wrap);
|
|
EXPECT_TRUE(content_timeout);
|
|
EXPECT_NE(0U, alarm_timeout);
|
|
|
|
_exit(!written + content_wrap + alarm_wrap + !content_timeout +
|
|
!alarm_timeout);
|
|
#else
|
|
GTEST_LOG_(INFO) << "This test does nothing.\n";
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
#ifdef LOGD_ENABLE_FLAKY_TESTS
|
|
// b/27242723 confirmed fixed
|
|
TEST(logd, SNDTIMEO) {
|
|
#ifdef __ANDROID__
|
|
static const unsigned sndtimeo =
|
|
LOGD_SNDTIMEO; // <sigh> it has to be done!
|
|
static const unsigned sleep_time = sndtimeo + 3;
|
|
static const unsigned alarm_time = sleep_time + 5;
|
|
|
|
int fd;
|
|
|
|
ASSERT_TRUE(
|
|
(fd = socket_local_client("logdr", ANDROID_SOCKET_NAMESPACE_RESERVED,
|
|
SOCK_SEQPACKET)) > 0);
|
|
|
|
struct sigaction ignore, old_sigaction;
|
|
memset(&ignore, 0, sizeof(ignore));
|
|
ignore.sa_handler = caught_signal;
|
|
sigemptyset(&ignore.sa_mask);
|
|
sigaction(SIGALRM, &ignore, &old_sigaction);
|
|
unsigned int old_alarm = alarm(alarm_time);
|
|
|
|
static const char ask[] = "stream lids=0,1,2,3,4,5,6"; // all sources
|
|
bool reader_requested = write(fd, ask, sizeof(ask)) == sizeof(ask);
|
|
EXPECT_TRUE(reader_requested);
|
|
|
|
log_msg msg;
|
|
bool read_one = recv(fd, msg.buf, sizeof(msg), 0) > 0;
|
|
|
|
EXPECT_TRUE(read_one);
|
|
if (read_one) {
|
|
dump_log_msg("user", &msg, -1);
|
|
}
|
|
|
|
fprintf(stderr, "Sleep for >%d seconds logd SO_SNDTIMEO ...\n", sndtimeo);
|
|
sleep(sleep_time);
|
|
|
|
// flush will block if we did not trigger. if it did, last entry returns 0
|
|
int recv_ret;
|
|
do {
|
|
recv_ret = recv(fd, msg.buf, sizeof(msg), 0);
|
|
} while (recv_ret > 0);
|
|
int save_errno = (recv_ret < 0) ? errno : 0;
|
|
|
|
EXPECT_NE(0U, alarm(old_alarm));
|
|
sigaction(SIGALRM, &old_sigaction, nullptr);
|
|
|
|
EXPECT_EQ(0, recv_ret);
|
|
if (recv_ret > 0) {
|
|
dump_log_msg("user", &msg, -1);
|
|
}
|
|
EXPECT_EQ(0, save_errno);
|
|
|
|
close(fd);
|
|
#else
|
|
GTEST_LOG_(INFO) << "This test does nothing.\n";
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
TEST(logd, getEventTag_list) {
|
|
#ifdef __ANDROID__
|
|
char buffer[256];
|
|
memset(buffer, 0, sizeof(buffer));
|
|
snprintf(buffer, sizeof(buffer), "getEventTag name=*");
|
|
send_to_control(buffer, sizeof(buffer));
|
|
buffer[sizeof(buffer) - 1] = '\0';
|
|
char* cp;
|
|
long ret = strtol(buffer, &cp, 10);
|
|
EXPECT_GT(ret, 4096);
|
|
#else
|
|
GTEST_LOG_(INFO) << "This test does nothing.\n";
|
|
#endif
|
|
}
|
|
|
|
TEST(logd, getEventTag_42) {
|
|
#ifdef __ANDROID__
|
|
char buffer[256];
|
|
memset(buffer, 0, sizeof(buffer));
|
|
snprintf(buffer, sizeof(buffer), "getEventTag id=42");
|
|
send_to_control(buffer, sizeof(buffer));
|
|
buffer[sizeof(buffer) - 1] = '\0';
|
|
char* cp;
|
|
long ret = strtol(buffer, &cp, 10);
|
|
EXPECT_GT(ret, 16);
|
|
EXPECT_TRUE(strstr(buffer, "\t(to life the universe etc|3)") != nullptr);
|
|
EXPECT_TRUE(strstr(buffer, "answer") != nullptr);
|
|
#else
|
|
GTEST_LOG_(INFO) << "This test does nothing.\n";
|
|
#endif
|
|
}
|
|
|
|
TEST(logd, getEventTag_newentry) {
|
|
#ifdef __ANDROID__
|
|
char buffer[256];
|
|
memset(buffer, 0, sizeof(buffer));
|
|
log_time now(CLOCK_MONOTONIC);
|
|
char name[64];
|
|
snprintf(name, sizeof(name), "a%" PRIu64, now.nsec());
|
|
snprintf(buffer, sizeof(buffer), "getEventTag name=%s format=\"(new|1)\"",
|
|
name);
|
|
send_to_control(buffer, sizeof(buffer));
|
|
buffer[sizeof(buffer) - 1] = '\0';
|
|
char* cp;
|
|
long ret = strtol(buffer, &cp, 10);
|
|
EXPECT_GT(ret, 16);
|
|
EXPECT_TRUE(strstr(buffer, "\t(new|1)") != nullptr);
|
|
EXPECT_TRUE(strstr(buffer, name) != nullptr);
|
|
// ToDo: also look for this in /data/misc/logd/event-log-tags and
|
|
// /dev/event-log-tags.
|
|
#else
|
|
GTEST_LOG_(INFO) << "This test does nothing.\n";
|
|
#endif
|
|
}
|
|
|
|
TEST(logd, no_epipe) {
|
|
#ifdef __ANDROID__
|
|
// Actually generating SIGPIPE in logd is racy, since we need to close the socket quicker than
|
|
// logd finishes writing the data to it, so we try 5 times, which should be enough to trigger
|
|
// SIGPIPE if logd isn't ignoring SIGPIPE
|
|
for (int i = 0; i < 5; ++i) {
|
|
unique_fd sock1(
|
|
socket_local_client("logd", ANDROID_SOCKET_NAMESPACE_RESERVED, SOCK_STREAM));
|
|
ASSERT_GT(sock1, 0);
|
|
unique_fd sock2(
|
|
socket_local_client("logd", ANDROID_SOCKET_NAMESPACE_RESERVED, SOCK_STREAM));
|
|
ASSERT_GT(sock2, 0);
|
|
|
|
std::string message = "getStatistics 0 1 2 3 4 5 6 7";
|
|
|
|
ASSERT_GT(write(sock1, message.c_str(), message.length() + 1), 0);
|
|
sock1.reset();
|
|
ASSERT_GT(write(sock2, message.c_str(), message.length() + 1), 0);
|
|
|
|
struct pollfd p = {.fd = sock2, .events = POLLIN, .revents = 0};
|
|
|
|
int ret = poll(&p, 1, 1000);
|
|
EXPECT_EQ(ret, 1);
|
|
EXPECT_TRUE(p.revents & POLLIN);
|
|
EXPECT_FALSE(p.revents & POLL_ERR);
|
|
}
|
|
#else
|
|
GTEST_LOG_(INFO) << "This test does nothing.\n";
|
|
#endif
|
|
}
|
|
|
|
// Only AID_ROOT, AID_SYSTEM, and AID_LOG can set log sizes. Ensure that a different user, AID_BIN,
|
|
// cannot set the log size.
|
|
TEST(logd, logging_permissions) {
|
|
#ifdef __ANDROID__
|
|
if (getuid() != 0) {
|
|
GTEST_SKIP() << "This test requires root";
|
|
}
|
|
|
|
auto child_main = [] {
|
|
setgroups(0, nullptr);
|
|
setgid(AID_BIN);
|
|
setuid(AID_BIN);
|
|
|
|
std::unique_ptr<logger_list, decltype(&android_logger_list_free)> logger_list{
|
|
android_logger_list_alloc(0, 0, 0), &android_logger_list_free};
|
|
if (!logger_list) {
|
|
_exit(1);
|
|
}
|
|
auto logger = android_logger_open(logger_list.get(), LOG_ID_MAIN);
|
|
if (!logger) {
|
|
_exit(2);
|
|
}
|
|
// This line should fail, so if it returns 0, we exit with an error.
|
|
if (android_logger_set_log_size(logger, 2 * 1024 * 1024) == 0) {
|
|
_exit(3);
|
|
}
|
|
_exit(EXIT_SUCCESS);
|
|
};
|
|
|
|
ASSERT_EXIT(child_main(), testing::ExitedWithCode(0), "");
|
|
|
|
#else
|
|
GTEST_LOG_(INFO) << "This test does nothing.\n";
|
|
#endif
|
|
}
|