| /* |
| * Copyright (C) 2015 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 "sysdeps.h" |
| #include "adb_trace.h" |
| |
| #include <string> |
| #include <unordered_map> |
| #include <vector> |
| |
| #include <base/logging.h> |
| #include <base/strings.h> |
| |
| #include "adb.h" |
| |
| #if !ADB_HOST |
| #include <cutils/properties.h> |
| #endif |
| |
| #if !ADB_HOST |
| const char* adb_device_banner = "device"; |
| static android::base::LogdLogger gLogdLogger; |
| #else |
| const char* adb_device_banner = "host"; |
| #endif |
| |
| void AdbLogger(android::base::LogId id, android::base::LogSeverity severity, |
| const char* tag, const char* file, unsigned int line, |
| const char* message) { |
| android::base::StderrLogger(id, severity, tag, file, line, message); |
| #if !ADB_HOST |
| gLogdLogger(id, severity, tag, file, line, message); |
| #endif |
| } |
| |
| |
| #if !ADB_HOST |
| static std::string get_log_file_name() { |
| struct tm now; |
| time_t t; |
| tzset(); |
| time(&t); |
| localtime_r(&t, &now); |
| |
| char timestamp[PATH_MAX]; |
| strftime(timestamp, sizeof(timestamp), "%Y-%m-%d-%H-%M-%S", &now); |
| |
| return android::base::StringPrintf("/data/adb/adb-%s-%d", timestamp, |
| getpid()); |
| } |
| |
| void start_device_log(void) { |
| int fd = unix_open(get_log_file_name().c_str(), |
| O_WRONLY | O_CREAT | O_TRUNC | O_CLOEXEC, 0640); |
| if (fd == -1) { |
| return; |
| } |
| |
| // Redirect stdout and stderr to the log file. |
| dup2(fd, STDOUT_FILENO); |
| dup2(fd, STDERR_FILENO); |
| fprintf(stderr, "--- adb starting (pid %d) ---\n", getpid()); |
| unix_close(fd); |
| } |
| #endif |
| |
| int adb_trace_mask; |
| |
| std::string get_trace_setting_from_env() { |
| const char* setting = getenv("ADB_TRACE"); |
| if (setting == nullptr) { |
| setting = ""; |
| } |
| |
| return std::string(setting); |
| } |
| |
| #if !ADB_HOST |
| std::string get_trace_setting_from_prop() { |
| char buf[PROPERTY_VALUE_MAX]; |
| property_get("persist.adb.trace_mask", buf, ""); |
| return std::string(buf); |
| } |
| #endif |
| |
| std::string get_trace_setting() { |
| #if ADB_HOST |
| return get_trace_setting_from_env(); |
| #else |
| return get_trace_setting_from_prop(); |
| #endif |
| } |
| |
| // Split the space separated list of tags from the trace setting and build the |
| // trace mask from it. note that '1' and 'all' are special cases to enable all |
| // tracing. |
| // |
| // adb's trace setting comes from the ADB_TRACE environment variable, whereas |
| // adbd's comes from the system property persist.adb.trace_mask. |
| static void setup_trace_mask() { |
| const std::string trace_setting = get_trace_setting(); |
| if (trace_setting.empty()) { |
| return; |
| } |
| |
| std::unordered_map<std::string, int> trace_flags = { |
| {"1", 0}, |
| {"all", 0}, |
| {"adb", ADB}, |
| {"sockets", SOCKETS}, |
| {"packets", PACKETS}, |
| {"rwx", RWX}, |
| {"usb", USB}, |
| {"sync", SYNC}, |
| {"sysdeps", SYSDEPS}, |
| {"transport", TRANSPORT}, |
| {"jdwp", JDWP}, |
| {"services", SERVICES}, |
| {"auth", AUTH}, |
| {"fdevent", FDEVENT}, |
| {"shell", SHELL}}; |
| |
| std::vector<std::string> elements = android::base::Split(trace_setting, " "); |
| for (const auto& elem : elements) { |
| const auto& flag = trace_flags.find(elem); |
| if (flag == trace_flags.end()) { |
| LOG(ERROR) << "Unknown trace flag: " << elem; |
| continue; |
| } |
| |
| if (flag->second == 0) { |
| // 0 is used for the special values "1" and "all" that enable all |
| // tracing. |
| adb_trace_mask = ~0; |
| return; |
| } else { |
| adb_trace_mask |= 1 << flag->second; |
| } |
| } |
| } |
| |
| void adb_trace_init(char** argv) { |
| #if !ADB_HOST |
| // Don't open log file if no tracing, since this will block |
| // the crypto unmount of /data |
| if (!get_trace_setting().empty()) { |
| if (unix_isatty(STDOUT_FILENO) == 0) { |
| start_device_log(); |
| } |
| } |
| #endif |
| |
| android::base::InitLogging(argv, AdbLogger); |
| setup_trace_mask(); |
| |
| VLOG(ADB) << adb_version(); |
| } |
| |
| void adb_trace_enable(AdbTrace trace_tag) { |
| adb_trace_mask |= (1 << trace_tag); |
| } |