Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 1 | /* |
Mark Salyzyn | 1114f18 | 2014-02-21 13:54:07 -0800 | [diff] [blame] | 2 | * Copyright (C) 2012-2014 The Android Open Source Project |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 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 <arpa/inet.h> |
| 18 | #include <dirent.h> |
| 19 | #include <errno.h> |
| 20 | #include <fcntl.h> |
| 21 | #include <netinet/in.h> |
| 22 | #include <string.h> |
| 23 | #include <stdlib.h> |
Mark Salyzyn | 8daa9af | 2014-04-28 14:07:23 -0700 | [diff] [blame] | 24 | #include <sys/prctl.h> |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 25 | #include <sys/socket.h> |
| 26 | #include <sys/types.h> |
| 27 | |
Mark Salyzyn | 73160ac | 2015-08-20 10:01:44 -0700 | [diff] [blame] | 28 | #include <string> |
| 29 | |
Elliott Hughes | 4f71319 | 2015-12-04 22:00:26 -0800 | [diff] [blame] | 30 | #include <android-base/stringprintf.h> |
Mark Salyzyn | dfc47e8 | 2014-03-24 10:26:47 -0700 | [diff] [blame] | 31 | #include <cutils/sockets.h> |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 32 | #include <private/android_filesystem_config.h> |
Mark Salyzyn | 1114f18 | 2014-02-21 13:54:07 -0800 | [diff] [blame] | 33 | #include <sysutils/SocketClient.h> |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 34 | |
| 35 | #include "CommandListener.h" |
Mark Salyzyn | 1114f18 | 2014-02-21 13:54:07 -0800 | [diff] [blame] | 36 | #include "LogCommand.h" |
Mark Salyzyn | 083b037 | 2015-12-04 10:59:45 -0800 | [diff] [blame] | 37 | #include "LogUtils.h" |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 38 | |
| 39 | CommandListener::CommandListener(LogBuffer *buf, LogReader * /*reader*/, |
Mark Salyzyn | 7718778 | 2015-05-12 15:21:31 -0700 | [diff] [blame] | 40 | LogListener * /*swl*/) : |
Andreas Gampe | d75564f | 2015-07-27 11:04:37 -0700 | [diff] [blame] | 41 | FrameworkListener(getLogSocket()) { |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 42 | // registerCmd(new ShutdownCmd(buf, writer, swl)); |
| 43 | registerCmd(new ClearCmd(buf)); |
| 44 | registerCmd(new GetBufSizeCmd(buf)); |
Mark Salyzyn | dfa7a07 | 2014-02-11 12:29:31 -0800 | [diff] [blame] | 45 | registerCmd(new SetBufSizeCmd(buf)); |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 46 | registerCmd(new GetBufSizeUsedCmd(buf)); |
Mark Salyzyn | 34facab | 2014-02-06 14:48:50 -0800 | [diff] [blame] | 47 | registerCmd(new GetStatisticsCmd(buf)); |
Mark Salyzyn | dfa7a07 | 2014-02-11 12:29:31 -0800 | [diff] [blame] | 48 | registerCmd(new SetPruneListCmd(buf)); |
| 49 | registerCmd(new GetPruneListCmd(buf)); |
Mark Salyzyn | 11e55cb | 2015-03-10 16:45:17 -0700 | [diff] [blame] | 50 | registerCmd(new ReinitCmd()); |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 51 | } |
| 52 | |
Andreas Gampe | d75564f | 2015-07-27 11:04:37 -0700 | [diff] [blame] | 53 | CommandListener::ShutdownCmd::ShutdownCmd(LogReader *reader, |
Mark Salyzyn | 7718778 | 2015-05-12 15:21:31 -0700 | [diff] [blame] | 54 | LogListener *swl) : |
| 55 | LogCommand("shutdown"), |
Mark Salyzyn | 7718778 | 2015-05-12 15:21:31 -0700 | [diff] [blame] | 56 | mReader(*reader), |
| 57 | mSwl(*swl) { |
| 58 | } |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 59 | |
| 60 | int CommandListener::ShutdownCmd::runCommand(SocketClient * /*cli*/, |
| 61 | int /*argc*/, |
| 62 | char ** /*argv*/) { |
| 63 | mSwl.stopListener(); |
| 64 | mReader.stopListener(); |
| 65 | exit(0); |
| 66 | } |
| 67 | |
Mark Salyzyn | 7718778 | 2015-05-12 15:21:31 -0700 | [diff] [blame] | 68 | CommandListener::ClearCmd::ClearCmd(LogBuffer *buf) : |
| 69 | LogCommand("clear"), |
| 70 | mBuf(*buf) { |
| 71 | } |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 72 | |
Mark Salyzyn | 8daa9af | 2014-04-28 14:07:23 -0700 | [diff] [blame] | 73 | static void setname() { |
Mark Salyzyn | e3aeeee | 2015-03-17 07:56:32 -0700 | [diff] [blame] | 74 | static bool name_set; |
| 75 | if (!name_set) { |
| 76 | prctl(PR_SET_NAME, "logd.control"); |
| 77 | name_set = true; |
| 78 | } |
Mark Salyzyn | 8daa9af | 2014-04-28 14:07:23 -0700 | [diff] [blame] | 79 | } |
| 80 | |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 81 | int CommandListener::ClearCmd::runCommand(SocketClient *cli, |
| 82 | int argc, char **argv) { |
Mark Salyzyn | 8daa9af | 2014-04-28 14:07:23 -0700 | [diff] [blame] | 83 | setname(); |
Mark Salyzyn | 1a240b4 | 2014-06-12 11:16:16 -0700 | [diff] [blame] | 84 | uid_t uid = cli->getUid(); |
| 85 | if (clientHasLogCredentials(cli)) { |
| 86 | uid = AID_ROOT; |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 87 | } |
| 88 | |
| 89 | if (argc < 2) { |
| 90 | cli->sendMsg("Missing Argument"); |
| 91 | return 0; |
| 92 | } |
| 93 | |
| 94 | int id = atoi(argv[1]); |
Mark Salyzyn | 1114f18 | 2014-02-21 13:54:07 -0800 | [diff] [blame] | 95 | if ((id < LOG_ID_MIN) || (LOG_ID_MAX <= id)) { |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 96 | cli->sendMsg("Range Error"); |
| 97 | return 0; |
| 98 | } |
| 99 | |
Mark Salyzyn | c5dc970 | 2015-09-16 15:34:00 -0700 | [diff] [blame] | 100 | cli->sendMsg(mBuf.clear((log_id_t) id, uid) ? "busy" : "success"); |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 101 | return 0; |
| 102 | } |
| 103 | |
Mark Salyzyn | 7718778 | 2015-05-12 15:21:31 -0700 | [diff] [blame] | 104 | CommandListener::GetBufSizeCmd::GetBufSizeCmd(LogBuffer *buf) : |
| 105 | LogCommand("getLogSize"), |
| 106 | mBuf(*buf) { |
| 107 | } |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 108 | |
| 109 | int CommandListener::GetBufSizeCmd::runCommand(SocketClient *cli, |
| 110 | int argc, char **argv) { |
Mark Salyzyn | 8daa9af | 2014-04-28 14:07:23 -0700 | [diff] [blame] | 111 | setname(); |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 112 | if (argc < 2) { |
| 113 | cli->sendMsg("Missing Argument"); |
| 114 | return 0; |
| 115 | } |
| 116 | |
| 117 | int id = atoi(argv[1]); |
Mark Salyzyn | 1114f18 | 2014-02-21 13:54:07 -0800 | [diff] [blame] | 118 | if ((id < LOG_ID_MIN) || (LOG_ID_MAX <= id)) { |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 119 | cli->sendMsg("Range Error"); |
| 120 | return 0; |
| 121 | } |
| 122 | |
| 123 | unsigned long size = mBuf.getSize((log_id_t) id); |
| 124 | char buf[512]; |
| 125 | snprintf(buf, sizeof(buf), "%lu", size); |
| 126 | cli->sendMsg(buf); |
| 127 | return 0; |
| 128 | } |
| 129 | |
Mark Salyzyn | 7718778 | 2015-05-12 15:21:31 -0700 | [diff] [blame] | 130 | CommandListener::SetBufSizeCmd::SetBufSizeCmd(LogBuffer *buf) : |
| 131 | LogCommand("setLogSize"), |
| 132 | mBuf(*buf) { |
| 133 | } |
Mark Salyzyn | dfa7a07 | 2014-02-11 12:29:31 -0800 | [diff] [blame] | 134 | |
| 135 | int CommandListener::SetBufSizeCmd::runCommand(SocketClient *cli, |
| 136 | int argc, char **argv) { |
Mark Salyzyn | 8daa9af | 2014-04-28 14:07:23 -0700 | [diff] [blame] | 137 | setname(); |
Mark Salyzyn | dfa7a07 | 2014-02-11 12:29:31 -0800 | [diff] [blame] | 138 | if (!clientHasLogCredentials(cli)) { |
| 139 | cli->sendMsg("Permission Denied"); |
| 140 | return 0; |
| 141 | } |
| 142 | |
| 143 | if (argc < 3) { |
| 144 | cli->sendMsg("Missing Argument"); |
| 145 | return 0; |
| 146 | } |
| 147 | |
| 148 | int id = atoi(argv[1]); |
| 149 | if ((id < LOG_ID_MIN) || (LOG_ID_MAX <= id)) { |
| 150 | cli->sendMsg("Range Error"); |
| 151 | return 0; |
| 152 | } |
| 153 | |
| 154 | unsigned long size = atol(argv[2]); |
| 155 | if (mBuf.setSize((log_id_t) id, size)) { |
| 156 | cli->sendMsg("Range Error"); |
| 157 | return 0; |
| 158 | } |
| 159 | |
| 160 | cli->sendMsg("success"); |
| 161 | return 0; |
| 162 | } |
| 163 | |
Mark Salyzyn | 7718778 | 2015-05-12 15:21:31 -0700 | [diff] [blame] | 164 | CommandListener::GetBufSizeUsedCmd::GetBufSizeUsedCmd(LogBuffer *buf) : |
| 165 | LogCommand("getLogSizeUsed"), |
| 166 | mBuf(*buf) { |
| 167 | } |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 168 | |
| 169 | int CommandListener::GetBufSizeUsedCmd::runCommand(SocketClient *cli, |
| 170 | int argc, char **argv) { |
Mark Salyzyn | 8daa9af | 2014-04-28 14:07:23 -0700 | [diff] [blame] | 171 | setname(); |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 172 | if (argc < 2) { |
| 173 | cli->sendMsg("Missing Argument"); |
| 174 | return 0; |
| 175 | } |
| 176 | |
| 177 | int id = atoi(argv[1]); |
Mark Salyzyn | 1114f18 | 2014-02-21 13:54:07 -0800 | [diff] [blame] | 178 | if ((id < LOG_ID_MIN) || (LOG_ID_MAX <= id)) { |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 179 | cli->sendMsg("Range Error"); |
| 180 | return 0; |
| 181 | } |
| 182 | |
| 183 | unsigned long size = mBuf.getSizeUsed((log_id_t) id); |
| 184 | char buf[512]; |
| 185 | snprintf(buf, sizeof(buf), "%lu", size); |
| 186 | cli->sendMsg(buf); |
| 187 | return 0; |
| 188 | } |
Mark Salyzyn | 34facab | 2014-02-06 14:48:50 -0800 | [diff] [blame] | 189 | |
Mark Salyzyn | 7718778 | 2015-05-12 15:21:31 -0700 | [diff] [blame] | 190 | CommandListener::GetStatisticsCmd::GetStatisticsCmd(LogBuffer *buf) : |
| 191 | LogCommand("getStatistics"), |
| 192 | mBuf(*buf) { |
| 193 | } |
Mark Salyzyn | 34facab | 2014-02-06 14:48:50 -0800 | [diff] [blame] | 194 | |
Mark Salyzyn | 73160ac | 2015-08-20 10:01:44 -0700 | [diff] [blame] | 195 | static std::string package_string(const std::string &str) { |
Mark Salyzyn | dfa7a07 | 2014-02-11 12:29:31 -0800 | [diff] [blame] | 196 | // Calculate total buffer size prefix, count is the string length w/o nul |
| 197 | char fmt[32]; |
Mark Salyzyn | 73160ac | 2015-08-20 10:01:44 -0700 | [diff] [blame] | 198 | for(size_t l = str.length(), y = 0, x = 6; y != x; y = x, x = strlen(fmt) - 2) { |
Mark Salyzyn | dfa7a07 | 2014-02-11 12:29:31 -0800 | [diff] [blame] | 199 | snprintf(fmt, sizeof(fmt), "%zu\n%%s\n\f", l + x); |
| 200 | } |
Mark Salyzyn | 73160ac | 2015-08-20 10:01:44 -0700 | [diff] [blame] | 201 | return android::base::StringPrintf(fmt, str.c_str()); |
Mark Salyzyn | dfa7a07 | 2014-02-11 12:29:31 -0800 | [diff] [blame] | 202 | } |
| 203 | |
Mark Salyzyn | 34facab | 2014-02-06 14:48:50 -0800 | [diff] [blame] | 204 | int CommandListener::GetStatisticsCmd::runCommand(SocketClient *cli, |
| 205 | int argc, char **argv) { |
Mark Salyzyn | 8daa9af | 2014-04-28 14:07:23 -0700 | [diff] [blame] | 206 | setname(); |
Mark Salyzyn | 34facab | 2014-02-06 14:48:50 -0800 | [diff] [blame] | 207 | uid_t uid = cli->getUid(); |
Mark Salyzyn | 34facab | 2014-02-06 14:48:50 -0800 | [diff] [blame] | 208 | if (clientHasLogCredentials(cli)) { |
| 209 | uid = AID_ROOT; |
| 210 | } |
| 211 | |
| 212 | unsigned int logMask = -1; |
Mark Salyzyn | ee3b838 | 2015-12-17 09:58:43 -0800 | [diff] [blame] | 213 | pid_t pid = 0; |
Mark Salyzyn | 34facab | 2014-02-06 14:48:50 -0800 | [diff] [blame] | 214 | if (argc > 1) { |
| 215 | logMask = 0; |
| 216 | for (int i = 1; i < argc; ++i) { |
Mark Salyzyn | ee3b838 | 2015-12-17 09:58:43 -0800 | [diff] [blame] | 217 | static const char _pid[] = "pid="; |
| 218 | if (!strncmp(argv[i], _pid, sizeof(_pid) - 1)) { |
| 219 | pid = atol(argv[i] + sizeof(_pid) - 1); |
| 220 | if (pid == 0) { |
| 221 | cli->sendMsg("PID Error"); |
| 222 | return 0; |
| 223 | } |
| 224 | continue; |
| 225 | } |
| 226 | |
Mark Salyzyn | 34facab | 2014-02-06 14:48:50 -0800 | [diff] [blame] | 227 | int id = atoi(argv[i]); |
| 228 | if ((id < LOG_ID_MIN) || (LOG_ID_MAX <= id)) { |
| 229 | cli->sendMsg("Range Error"); |
| 230 | return 0; |
| 231 | } |
| 232 | logMask |= 1 << id; |
| 233 | } |
| 234 | } |
| 235 | |
Mark Salyzyn | ee3b838 | 2015-12-17 09:58:43 -0800 | [diff] [blame] | 236 | cli->sendMsg(package_string(mBuf.formatStatistics(uid, pid, |
| 237 | logMask)).c_str()); |
Mark Salyzyn | 34facab | 2014-02-06 14:48:50 -0800 | [diff] [blame] | 238 | return 0; |
| 239 | } |
Mark Salyzyn | dfa7a07 | 2014-02-11 12:29:31 -0800 | [diff] [blame] | 240 | |
Mark Salyzyn | 7718778 | 2015-05-12 15:21:31 -0700 | [diff] [blame] | 241 | CommandListener::GetPruneListCmd::GetPruneListCmd(LogBuffer *buf) : |
| 242 | LogCommand("getPruneList"), |
| 243 | mBuf(*buf) { |
| 244 | } |
Mark Salyzyn | dfa7a07 | 2014-02-11 12:29:31 -0800 | [diff] [blame] | 245 | |
| 246 | int CommandListener::GetPruneListCmd::runCommand(SocketClient *cli, |
| 247 | int /*argc*/, char ** /*argv*/) { |
Mark Salyzyn | 8daa9af | 2014-04-28 14:07:23 -0700 | [diff] [blame] | 248 | setname(); |
Mark Salyzyn | 73160ac | 2015-08-20 10:01:44 -0700 | [diff] [blame] | 249 | cli->sendMsg(package_string(mBuf.formatPrune()).c_str()); |
Mark Salyzyn | dfa7a07 | 2014-02-11 12:29:31 -0800 | [diff] [blame] | 250 | return 0; |
| 251 | } |
| 252 | |
Mark Salyzyn | 7718778 | 2015-05-12 15:21:31 -0700 | [diff] [blame] | 253 | CommandListener::SetPruneListCmd::SetPruneListCmd(LogBuffer *buf) : |
| 254 | LogCommand("setPruneList"), |
| 255 | mBuf(*buf) { |
| 256 | } |
Mark Salyzyn | dfa7a07 | 2014-02-11 12:29:31 -0800 | [diff] [blame] | 257 | |
| 258 | int CommandListener::SetPruneListCmd::runCommand(SocketClient *cli, |
| 259 | int argc, char **argv) { |
Mark Salyzyn | 8daa9af | 2014-04-28 14:07:23 -0700 | [diff] [blame] | 260 | setname(); |
Mark Salyzyn | dfa7a07 | 2014-02-11 12:29:31 -0800 | [diff] [blame] | 261 | if (!clientHasLogCredentials(cli)) { |
| 262 | cli->sendMsg("Permission Denied"); |
| 263 | return 0; |
| 264 | } |
| 265 | |
Mark Salyzyn | 73160ac | 2015-08-20 10:01:44 -0700 | [diff] [blame] | 266 | std::string str; |
Mark Salyzyn | dfa7a07 | 2014-02-11 12:29:31 -0800 | [diff] [blame] | 267 | for (int i = 1; i < argc; ++i) { |
Mark Salyzyn | 73160ac | 2015-08-20 10:01:44 -0700 | [diff] [blame] | 268 | if (str.length()) { |
| 269 | str += " "; |
Mark Salyzyn | dfa7a07 | 2014-02-11 12:29:31 -0800 | [diff] [blame] | 270 | } |
Mark Salyzyn | 73160ac | 2015-08-20 10:01:44 -0700 | [diff] [blame] | 271 | str += argv[i]; |
Mark Salyzyn | dfa7a07 | 2014-02-11 12:29:31 -0800 | [diff] [blame] | 272 | } |
| 273 | |
Mark Salyzyn | 73160ac | 2015-08-20 10:01:44 -0700 | [diff] [blame] | 274 | int ret = mBuf.initPrune(str.c_str()); |
Mark Salyzyn | dfa7a07 | 2014-02-11 12:29:31 -0800 | [diff] [blame] | 275 | |
| 276 | if (ret) { |
| 277 | cli->sendMsg("Invalid"); |
| 278 | return 0; |
| 279 | } |
| 280 | |
| 281 | cli->sendMsg("success"); |
| 282 | |
| 283 | return 0; |
| 284 | } |
Mark Salyzyn | dfc47e8 | 2014-03-24 10:26:47 -0700 | [diff] [blame] | 285 | |
Mark Salyzyn | 7718778 | 2015-05-12 15:21:31 -0700 | [diff] [blame] | 286 | CommandListener::ReinitCmd::ReinitCmd() : LogCommand("reinit") { |
| 287 | } |
Mark Salyzyn | 11e55cb | 2015-03-10 16:45:17 -0700 | [diff] [blame] | 288 | |
| 289 | int CommandListener::ReinitCmd::runCommand(SocketClient *cli, |
| 290 | int /*argc*/, char ** /*argv*/) { |
| 291 | setname(); |
| 292 | |
| 293 | reinit_signal_handler(SIGHUP); |
| 294 | |
| 295 | cli->sendMsg("success"); |
| 296 | |
| 297 | return 0; |
| 298 | } |
| 299 | |
Mark Salyzyn | dfc47e8 | 2014-03-24 10:26:47 -0700 | [diff] [blame] | 300 | int CommandListener::getLogSocket() { |
| 301 | static const char socketName[] = "logd"; |
| 302 | int sock = android_get_control_socket(socketName); |
| 303 | |
| 304 | if (sock < 0) { |
| 305 | sock = socket_local_server(socketName, |
| 306 | ANDROID_SOCKET_NAMESPACE_RESERVED, |
| 307 | SOCK_STREAM); |
| 308 | } |
| 309 | |
| 310 | return sock; |
| 311 | } |