Colin Cross | f45fa6b | 2012-03-26 12:38:26 -0700 | [diff] [blame] | 1 | /* |
Felipe Leme | 343175a | 2016-08-02 18:57:37 -0700 | [diff] [blame] | 2 | * Copyright (C) 2009 The Android Open Source Project |
Colin Cross | f45fa6b | 2012-03-26 12:38:26 -0700 | [diff] [blame] | 3 | * |
Felipe Leme | 343175a | 2016-08-02 18:57:37 -0700 | [diff] [blame] | 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. |
Colin Cross | f45fa6b | 2012-03-26 12:38:26 -0700 | [diff] [blame] | 15 | */ |
| 16 | |
Josh Gao | 4b8f6f9 | 2016-02-29 16:20:34 -0800 | [diff] [blame] | 17 | #include <algorithm> |
| 18 | #include <chrono> |
| 19 | #include <thread> |
| 20 | |
| 21 | #include <android-base/file.h> |
mukesh agrawal | 2f1eb1c | 2016-06-08 18:16:36 -0700 | [diff] [blame] | 22 | #include <android-base/stringprintf.h> |
Josh Gao | 4b8f6f9 | 2016-02-29 16:20:34 -0800 | [diff] [blame] | 23 | #include <android-base/unique_fd.h> |
Colin Cross | f45fa6b | 2012-03-26 12:38:26 -0700 | [diff] [blame] | 24 | #include <binder/Parcel.h> |
| 25 | #include <binder/ProcessState.h> |
Mathias Agopian | 002e1e5 | 2013-05-06 20:20:50 -0700 | [diff] [blame] | 26 | #include <binder/TextOutput.h> |
Josh Gao | 4b8f6f9 | 2016-02-29 16:20:34 -0800 | [diff] [blame] | 27 | #include <utils/Log.h> |
Colin Cross | f45fa6b | 2012-03-26 12:38:26 -0700 | [diff] [blame] | 28 | #include <utils/Vector.h> |
| 29 | |
Josh Gao | 4b8f6f9 | 2016-02-29 16:20:34 -0800 | [diff] [blame] | 30 | #include <fcntl.h> |
Colin Cross | f45fa6b | 2012-03-26 12:38:26 -0700 | [diff] [blame] | 31 | #include <getopt.h> |
Colin Cross | f45fa6b | 2012-03-26 12:38:26 -0700 | [diff] [blame] | 32 | #include <stdio.h> |
Josh Gao | 4b8f6f9 | 2016-02-29 16:20:34 -0800 | [diff] [blame] | 33 | #include <stdlib.h> |
Colin Cross | f45fa6b | 2012-03-26 12:38:26 -0700 | [diff] [blame] | 34 | #include <string.h> |
Josh Gao | 4b8f6f9 | 2016-02-29 16:20:34 -0800 | [diff] [blame] | 35 | #include <sys/poll.h> |
| 36 | #include <sys/socket.h> |
Colin Cross | f45fa6b | 2012-03-26 12:38:26 -0700 | [diff] [blame] | 37 | #include <sys/time.h> |
Josh Gao | 4b8f6f9 | 2016-02-29 16:20:34 -0800 | [diff] [blame] | 38 | #include <sys/types.h> |
| 39 | #include <unistd.h> |
Colin Cross | f45fa6b | 2012-03-26 12:38:26 -0700 | [diff] [blame] | 40 | |
Felipe Leme | 343175a | 2016-08-02 18:57:37 -0700 | [diff] [blame] | 41 | #include "dumpsys.h" |
| 42 | |
Colin Cross | f45fa6b | 2012-03-26 12:38:26 -0700 | [diff] [blame] | 43 | using namespace android; |
mukesh agrawal | 2f1eb1c | 2016-06-08 18:16:36 -0700 | [diff] [blame] | 44 | using android::base::StringPrintf; |
Josh Gao | 4b8f6f9 | 2016-02-29 16:20:34 -0800 | [diff] [blame] | 45 | using android::base::unique_fd; |
| 46 | using android::base::WriteFully; |
Colin Cross | f45fa6b | 2012-03-26 12:38:26 -0700 | [diff] [blame] | 47 | |
Steven Moreland | 2c3cd83 | 2017-02-13 23:44:17 +0000 | [diff] [blame^] | 48 | static int sort_func(const String16* lhs, const String16* rhs) |
| 49 | { |
Colin Cross | f45fa6b | 2012-03-26 12:38:26 -0700 | [diff] [blame] | 50 | return lhs->compare(*rhs); |
| 51 | } |
| 52 | |
Felipe Leme | bbfd2b8 | 2016-02-03 11:16:27 -0800 | [diff] [blame] | 53 | static void usage() { |
| 54 | fprintf(stderr, |
| 55 | "usage: dumpsys\n" |
| 56 | " To dump all services.\n" |
| 57 | "or:\n" |
Steven Moreland | 2c3cd83 | 2017-02-13 23:44:17 +0000 | [diff] [blame^] | 58 | " dumpsys [-t TIMEOUT] [--help | -l | --skip SERVICES | SERVICE [ARGS]]\n" |
Felipe Leme | bbfd2b8 | 2016-02-03 11:16:27 -0800 | [diff] [blame] | 59 | " --help: shows this help\n" |
| 60 | " -l: only list services, do not dump them\n" |
Thierry Strudel | 8b78b75 | 2016-03-22 10:25:44 -0700 | [diff] [blame] | 61 | " -t TIMEOUT: TIMEOUT to use in seconds instead of default 10 seconds\n" |
Felipe Leme | 859aef6 | 2016-02-03 12:17:10 -0800 | [diff] [blame] | 62 | " --skip SERVICES: dumps all services but SERVICES (comma-separated list)\n" |
| 63 | " SERVICE [ARGS]: dumps only service SERVICE, optionally passing ARGS to it\n"); |
| 64 | } |
| 65 | |
Felipe Leme | 343175a | 2016-08-02 18:57:37 -0700 | [diff] [blame] | 66 | static bool IsSkipped(const Vector<String16>& skipped, const String16& service) { |
Felipe Leme | 859aef6 | 2016-02-03 12:17:10 -0800 | [diff] [blame] | 67 | for (const auto& candidate : skipped) { |
| 68 | if (candidate == service) { |
| 69 | return true; |
| 70 | } |
| 71 | } |
| 72 | return false; |
Felipe Leme | bbfd2b8 | 2016-02-03 11:16:27 -0800 | [diff] [blame] | 73 | } |
| 74 | |
Felipe Leme | 343175a | 2016-08-02 18:57:37 -0700 | [diff] [blame] | 75 | int Dumpsys::main(int argc, char* const argv[]) { |
Colin Cross | f45fa6b | 2012-03-26 12:38:26 -0700 | [diff] [blame] | 76 | Vector<String16> services; |
| 77 | Vector<String16> args; |
Felipe Leme | 859aef6 | 2016-02-03 12:17:10 -0800 | [diff] [blame] | 78 | Vector<String16> skippedServices; |
keunyoung | caad555 | 2013-06-13 15:08:51 -0700 | [diff] [blame] | 79 | bool showListOnly = false; |
Thierry Strudel | 8b78b75 | 2016-03-22 10:25:44 -0700 | [diff] [blame] | 80 | bool skipServices = false; |
| 81 | int timeoutArg = 10; |
| 82 | static struct option longOptions[] = { |
| 83 | {"skip", no_argument, 0, 0 }, |
| 84 | {"help", no_argument, 0, 0 }, |
| 85 | { 0, 0, 0, 0 } |
| 86 | }; |
| 87 | |
Felipe Leme | 343175a | 2016-08-02 18:57:37 -0700 | [diff] [blame] | 88 | // Must reset optind, otherwise subsequent calls will fail (wouldn't happen on main.cpp, but |
| 89 | // happens on test cases). |
| 90 | optind = 1; |
Thierry Strudel | 8b78b75 | 2016-03-22 10:25:44 -0700 | [diff] [blame] | 91 | while (1) { |
| 92 | int c; |
| 93 | int optionIndex = 0; |
| 94 | |
| 95 | c = getopt_long(argc, argv, "+t:l", longOptions, &optionIndex); |
| 96 | |
| 97 | if (c == -1) { |
| 98 | break; |
Felipe Leme | bbfd2b8 | 2016-02-03 11:16:27 -0800 | [diff] [blame] | 99 | } |
Thierry Strudel | 8b78b75 | 2016-03-22 10:25:44 -0700 | [diff] [blame] | 100 | |
| 101 | switch (c) { |
| 102 | case 0: |
| 103 | if (!strcmp(longOptions[optionIndex].name, "skip")) { |
| 104 | skipServices = true; |
| 105 | } else if (!strcmp(longOptions[optionIndex].name, "help")) { |
| 106 | usage(); |
| 107 | return 0; |
| 108 | } |
| 109 | break; |
| 110 | |
| 111 | case 't': |
| 112 | { |
| 113 | char *endptr; |
| 114 | timeoutArg = strtol(optarg, &endptr, 10); |
| 115 | if (*endptr != '\0' || timeoutArg <= 0) { |
| 116 | fprintf(stderr, "Error: invalid timeout number: '%s'\n", optarg); |
| 117 | return -1; |
| 118 | } |
| 119 | } |
| 120 | break; |
| 121 | |
| 122 | case 'l': |
Felipe Leme | bbfd2b8 | 2016-02-03 11:16:27 -0800 | [diff] [blame] | 123 | showListOnly = true; |
Thierry Strudel | 8b78b75 | 2016-03-22 10:25:44 -0700 | [diff] [blame] | 124 | break; |
| 125 | |
| 126 | default: |
| 127 | fprintf(stderr, "\n"); |
| 128 | usage(); |
| 129 | return -1; |
Felipe Leme | bbfd2b8 | 2016-02-03 11:16:27 -0800 | [diff] [blame] | 130 | } |
keunyoung | caad555 | 2013-06-13 15:08:51 -0700 | [diff] [blame] | 131 | } |
Thierry Strudel | 8b78b75 | 2016-03-22 10:25:44 -0700 | [diff] [blame] | 132 | |
| 133 | for (int i = optind; i < argc; i++) { |
| 134 | if (skipServices) { |
| 135 | skippedServices.add(String16(argv[i])); |
| 136 | } else { |
| 137 | if (i == optind) { |
| 138 | services.add(String16(argv[i])); |
| 139 | } else { |
| 140 | args.add(String16(argv[i])); |
Felipe Leme | 859aef6 | 2016-02-03 12:17:10 -0800 | [diff] [blame] | 141 | } |
| 142 | } |
| 143 | } |
Thierry Strudel | 8b78b75 | 2016-03-22 10:25:44 -0700 | [diff] [blame] | 144 | |
| 145 | if ((skipServices && skippedServices.empty()) || |
Steven Moreland | 2c3cd83 | 2017-02-13 23:44:17 +0000 | [diff] [blame^] | 146 | (showListOnly && (!services.empty() || !skippedServices.empty()))) { |
Thierry Strudel | 8b78b75 | 2016-03-22 10:25:44 -0700 | [diff] [blame] | 147 | usage(); |
| 148 | return -1; |
| 149 | } |
| 150 | |
Thierry Strudel | 159a832 | 2016-03-23 11:22:34 -0700 | [diff] [blame] | 151 | if (services.empty() || showListOnly) { |
Felipe Leme | 859aef6 | 2016-02-03 12:17:10 -0800 | [diff] [blame] | 152 | // gets all services |
Felipe Leme | 343175a | 2016-08-02 18:57:37 -0700 | [diff] [blame] | 153 | services = sm_->listServices(); |
Colin Cross | f45fa6b | 2012-03-26 12:38:26 -0700 | [diff] [blame] | 154 | services.sort(sort_func); |
| 155 | args.add(String16("-a")); |
Colin Cross | f45fa6b | 2012-03-26 12:38:26 -0700 | [diff] [blame] | 156 | } |
| 157 | |
| 158 | const size_t N = services.size(); |
| 159 | |
| 160 | if (N > 1) { |
| 161 | // first print a list of the current services |
| 162 | aout << "Currently running services:" << endl; |
Felipe Leme | bbfd2b8 | 2016-02-03 11:16:27 -0800 | [diff] [blame] | 163 | |
Colin Cross | f45fa6b | 2012-03-26 12:38:26 -0700 | [diff] [blame] | 164 | for (size_t i=0; i<N; i++) { |
Felipe Leme | 343175a | 2016-08-02 18:57:37 -0700 | [diff] [blame] | 165 | sp<IBinder> service = sm_->checkService(services[i]); |
| 166 | |
| 167 | if (service != nullptr) { |
Felipe Leme | 859aef6 | 2016-02-03 12:17:10 -0800 | [diff] [blame] | 168 | bool skipped = IsSkipped(skippedServices, services[i]); |
| 169 | aout << " " << services[i] << (skipped ? " (skipped)" : "") << endl; |
Colin Cross | f45fa6b | 2012-03-26 12:38:26 -0700 | [diff] [blame] | 170 | } |
| 171 | } |
| 172 | } |
| 173 | |
keunyoung | caad555 | 2013-06-13 15:08:51 -0700 | [diff] [blame] | 174 | if (showListOnly) { |
| 175 | return 0; |
| 176 | } |
| 177 | |
Josh Gao | 4b8f6f9 | 2016-02-29 16:20:34 -0800 | [diff] [blame] | 178 | for (size_t i = 0; i < N; i++) { |
| 179 | String16 service_name = std::move(services[i]); |
| 180 | if (IsSkipped(skippedServices, service_name)) continue; |
Felipe Leme | 859aef6 | 2016-02-03 12:17:10 -0800 | [diff] [blame] | 181 | |
Felipe Leme | 343175a | 2016-08-02 18:57:37 -0700 | [diff] [blame] | 182 | sp<IBinder> service = sm_->checkService(service_name); |
| 183 | if (service != nullptr) { |
Josh Gao | 4b8f6f9 | 2016-02-29 16:20:34 -0800 | [diff] [blame] | 184 | int sfd[2]; |
| 185 | |
Josh Gao | 49f0a0c | 2016-03-04 13:12:29 -0800 | [diff] [blame] | 186 | if (pipe(sfd) != 0) { |
| 187 | aerr << "Failed to create pipe to dump service info for " << service_name |
Josh Gao | 4b8f6f9 | 2016-02-29 16:20:34 -0800 | [diff] [blame] | 188 | << ": " << strerror(errno) << endl; |
| 189 | continue; |
| 190 | } |
| 191 | |
| 192 | unique_fd local_end(sfd[0]); |
| 193 | unique_fd remote_end(sfd[1]); |
| 194 | sfd[0] = sfd[1] = -1; |
| 195 | |
Colin Cross | f45fa6b | 2012-03-26 12:38:26 -0700 | [diff] [blame] | 196 | if (N > 1) { |
| 197 | aout << "------------------------------------------------------------" |
| 198 | "-------------------" << endl; |
Josh Gao | 4b8f6f9 | 2016-02-29 16:20:34 -0800 | [diff] [blame] | 199 | aout << "DUMP OF SERVICE " << service_name << ":" << endl; |
Colin Cross | f45fa6b | 2012-03-26 12:38:26 -0700 | [diff] [blame] | 200 | } |
Josh Gao | 4b8f6f9 | 2016-02-29 16:20:34 -0800 | [diff] [blame] | 201 | |
| 202 | // dump blocks until completion, so spawn a thread.. |
| 203 | std::thread dump_thread([=, remote_end { std::move(remote_end) }]() mutable { |
| 204 | int err = service->dump(remote_end.get(), args); |
| 205 | |
| 206 | // It'd be nice to be able to close the remote end of the socketpair before the dump |
| 207 | // call returns, to terminate our reads if the other end closes their copy of the |
| 208 | // file descriptor, but then hangs for some reason. There doesn't seem to be a good |
| 209 | // way to do this, though. |
Josh Gao | 9656be1 | 2016-09-19 12:44:50 -0700 | [diff] [blame] | 210 | remote_end.reset(); |
Josh Gao | 4b8f6f9 | 2016-02-29 16:20:34 -0800 | [diff] [blame] | 211 | |
| 212 | if (err != 0) { |
| 213 | aerr << "Error dumping service info: (" << strerror(err) << ") " << service_name |
| 214 | << endl; |
| 215 | } |
| 216 | }); |
| 217 | |
Thierry Strudel | 8b78b75 | 2016-03-22 10:25:44 -0700 | [diff] [blame] | 218 | auto timeout = std::chrono::seconds(timeoutArg); |
mukesh agrawal | 2f1eb1c | 2016-06-08 18:16:36 -0700 | [diff] [blame] | 219 | auto start = std::chrono::steady_clock::now(); |
| 220 | auto end = start + timeout; |
Josh Gao | 4b8f6f9 | 2016-02-29 16:20:34 -0800 | [diff] [blame] | 221 | |
| 222 | struct pollfd pfd = { |
| 223 | .fd = local_end.get(), |
| 224 | .events = POLLIN |
| 225 | }; |
| 226 | |
| 227 | bool timed_out = false; |
| 228 | bool error = false; |
| 229 | while (true) { |
| 230 | // Wrap this in a lambda so that TEMP_FAILURE_RETRY recalculates the timeout. |
| 231 | auto time_left_ms = [end]() { |
| 232 | auto now = std::chrono::steady_clock::now(); |
| 233 | auto diff = std::chrono::duration_cast<std::chrono::milliseconds>(end - now); |
| 234 | return std::max(diff.count(), 0ll); |
| 235 | }; |
| 236 | |
| 237 | int rc = TEMP_FAILURE_RETRY(poll(&pfd, 1, time_left_ms())); |
| 238 | if (rc < 0) { |
| 239 | aerr << "Error in poll while dumping service " << service_name << " : " |
| 240 | << strerror(errno) << endl; |
| 241 | error = true; |
| 242 | break; |
| 243 | } else if (rc == 0) { |
| 244 | timed_out = true; |
| 245 | break; |
| 246 | } |
| 247 | |
| 248 | char buf[4096]; |
| 249 | rc = TEMP_FAILURE_RETRY(read(local_end.get(), buf, sizeof(buf))); |
| 250 | if (rc < 0) { |
| 251 | aerr << "Failed to read while dumping service " << service_name << ": " |
| 252 | << strerror(errno) << endl; |
| 253 | error = true; |
| 254 | break; |
| 255 | } else if (rc == 0) { |
| 256 | // EOF. |
| 257 | break; |
| 258 | } |
| 259 | |
| 260 | if (!WriteFully(STDOUT_FILENO, buf, rc)) { |
| 261 | aerr << "Failed to write while dumping service " << service_name << ": " |
| 262 | << strerror(errno) << endl; |
| 263 | error = true; |
| 264 | break; |
| 265 | } |
| 266 | } |
| 267 | |
| 268 | if (timed_out) { |
Felipe Leme | 343175a | 2016-08-02 18:57:37 -0700 | [diff] [blame] | 269 | aout << endl |
| 270 | << "*** SERVICE '" << service_name << "' DUMP TIMEOUT (" << timeoutArg |
| 271 | << "s) EXPIRED ***" << endl |
| 272 | << endl; |
Josh Gao | 4b8f6f9 | 2016-02-29 16:20:34 -0800 | [diff] [blame] | 273 | } |
| 274 | |
| 275 | if (timed_out || error) { |
| 276 | dump_thread.detach(); |
| 277 | } else { |
| 278 | dump_thread.join(); |
Colin Cross | f45fa6b | 2012-03-26 12:38:26 -0700 | [diff] [blame] | 279 | } |
mukesh agrawal | 2f1eb1c | 2016-06-08 18:16:36 -0700 | [diff] [blame] | 280 | |
| 281 | if (N > 1) { |
| 282 | std::chrono::duration<double> elapsed_seconds = |
| 283 | std::chrono::steady_clock::now() - start; |
mukesh agrawal | bca287d | 2016-07-27 12:01:49 -0700 | [diff] [blame] | 284 | aout << StringPrintf("--------- %.3fs ", elapsed_seconds.count()).c_str() |
| 285 | << "was the duration of dumpsys " << service_name << endl; |
mukesh agrawal | 2f1eb1c | 2016-06-08 18:16:36 -0700 | [diff] [blame] | 286 | } |
Colin Cross | f45fa6b | 2012-03-26 12:38:26 -0700 | [diff] [blame] | 287 | } else { |
Josh Gao | 4b8f6f9 | 2016-02-29 16:20:34 -0800 | [diff] [blame] | 288 | aerr << "Can't find service: " << service_name << endl; |
Colin Cross | f45fa6b | 2012-03-26 12:38:26 -0700 | [diff] [blame] | 289 | } |
| 290 | } |
| 291 | |
| 292 | return 0; |
| 293 | } |