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 | dfc47e8 | 2014-03-24 10:26:47 -0700 | [diff] [blame] | 28 | #include <cutils/sockets.h> |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 29 | #include <private/android_filesystem_config.h> |
Mark Salyzyn | 1114f18 | 2014-02-21 13:54:07 -0800 | [diff] [blame] | 30 | #include <sysutils/SocketClient.h> |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 31 | |
| 32 | #include "CommandListener.h" |
Mark Salyzyn | 1114f18 | 2014-02-21 13:54:07 -0800 | [diff] [blame] | 33 | #include "LogCommand.h" |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 34 | |
| 35 | CommandListener::CommandListener(LogBuffer *buf, LogReader * /*reader*/, |
Mark Salyzyn | 7718778 | 2015-05-12 15:21:31 -0700 | [diff] [blame] | 36 | LogListener * /*swl*/) : |
| 37 | FrameworkListener(getLogSocket()), |
| 38 | mBuf(*buf) { |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 39 | // registerCmd(new ShutdownCmd(buf, writer, swl)); |
| 40 | registerCmd(new ClearCmd(buf)); |
| 41 | registerCmd(new GetBufSizeCmd(buf)); |
Mark Salyzyn | dfa7a07 | 2014-02-11 12:29:31 -0800 | [diff] [blame] | 42 | registerCmd(new SetBufSizeCmd(buf)); |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 43 | registerCmd(new GetBufSizeUsedCmd(buf)); |
Mark Salyzyn | 34facab | 2014-02-06 14:48:50 -0800 | [diff] [blame] | 44 | registerCmd(new GetStatisticsCmd(buf)); |
Mark Salyzyn | dfa7a07 | 2014-02-11 12:29:31 -0800 | [diff] [blame] | 45 | registerCmd(new SetPruneListCmd(buf)); |
| 46 | registerCmd(new GetPruneListCmd(buf)); |
Mark Salyzyn | 11e55cb | 2015-03-10 16:45:17 -0700 | [diff] [blame] | 47 | registerCmd(new ReinitCmd()); |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 48 | } |
| 49 | |
| 50 | CommandListener::ShutdownCmd::ShutdownCmd(LogBuffer *buf, LogReader *reader, |
Mark Salyzyn | 7718778 | 2015-05-12 15:21:31 -0700 | [diff] [blame] | 51 | LogListener *swl) : |
| 52 | LogCommand("shutdown"), |
| 53 | mBuf(*buf), |
| 54 | mReader(*reader), |
| 55 | mSwl(*swl) { |
| 56 | } |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 57 | |
| 58 | int CommandListener::ShutdownCmd::runCommand(SocketClient * /*cli*/, |
| 59 | int /*argc*/, |
| 60 | char ** /*argv*/) { |
| 61 | mSwl.stopListener(); |
| 62 | mReader.stopListener(); |
| 63 | exit(0); |
| 64 | } |
| 65 | |
Mark Salyzyn | 7718778 | 2015-05-12 15:21:31 -0700 | [diff] [blame] | 66 | CommandListener::ClearCmd::ClearCmd(LogBuffer *buf) : |
| 67 | LogCommand("clear"), |
| 68 | mBuf(*buf) { |
| 69 | } |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 70 | |
Mark Salyzyn | 8daa9af | 2014-04-28 14:07:23 -0700 | [diff] [blame] | 71 | static void setname() { |
Mark Salyzyn | e3aeeee | 2015-03-17 07:56:32 -0700 | [diff] [blame] | 72 | static bool name_set; |
| 73 | if (!name_set) { |
| 74 | prctl(PR_SET_NAME, "logd.control"); |
| 75 | name_set = true; |
| 76 | } |
Mark Salyzyn | 8daa9af | 2014-04-28 14:07:23 -0700 | [diff] [blame] | 77 | } |
| 78 | |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 79 | int CommandListener::ClearCmd::runCommand(SocketClient *cli, |
| 80 | int argc, char **argv) { |
Mark Salyzyn | 8daa9af | 2014-04-28 14:07:23 -0700 | [diff] [blame] | 81 | setname(); |
Mark Salyzyn | 1a240b4 | 2014-06-12 11:16:16 -0700 | [diff] [blame] | 82 | uid_t uid = cli->getUid(); |
| 83 | if (clientHasLogCredentials(cli)) { |
| 84 | uid = AID_ROOT; |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 85 | } |
| 86 | |
| 87 | if (argc < 2) { |
| 88 | cli->sendMsg("Missing Argument"); |
| 89 | return 0; |
| 90 | } |
| 91 | |
| 92 | int id = atoi(argv[1]); |
Mark Salyzyn | 1114f18 | 2014-02-21 13:54:07 -0800 | [diff] [blame] | 93 | if ((id < LOG_ID_MIN) || (LOG_ID_MAX <= id)) { |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 94 | cli->sendMsg("Range Error"); |
| 95 | return 0; |
| 96 | } |
| 97 | |
Mark Salyzyn | 1a240b4 | 2014-06-12 11:16:16 -0700 | [diff] [blame] | 98 | mBuf.clear((log_id_t) id, uid); |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 99 | cli->sendMsg("success"); |
| 100 | return 0; |
| 101 | } |
| 102 | |
Mark Salyzyn | 7718778 | 2015-05-12 15:21:31 -0700 | [diff] [blame] | 103 | CommandListener::GetBufSizeCmd::GetBufSizeCmd(LogBuffer *buf) : |
| 104 | LogCommand("getLogSize"), |
| 105 | mBuf(*buf) { |
| 106 | } |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 107 | |
| 108 | int CommandListener::GetBufSizeCmd::runCommand(SocketClient *cli, |
| 109 | int argc, char **argv) { |
Mark Salyzyn | 8daa9af | 2014-04-28 14:07:23 -0700 | [diff] [blame] | 110 | setname(); |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 111 | if (argc < 2) { |
| 112 | cli->sendMsg("Missing Argument"); |
| 113 | return 0; |
| 114 | } |
| 115 | |
| 116 | int id = atoi(argv[1]); |
Mark Salyzyn | 1114f18 | 2014-02-21 13:54:07 -0800 | [diff] [blame] | 117 | if ((id < LOG_ID_MIN) || (LOG_ID_MAX <= id)) { |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 118 | cli->sendMsg("Range Error"); |
| 119 | return 0; |
| 120 | } |
| 121 | |
| 122 | unsigned long size = mBuf.getSize((log_id_t) id); |
| 123 | char buf[512]; |
| 124 | snprintf(buf, sizeof(buf), "%lu", size); |
| 125 | cli->sendMsg(buf); |
| 126 | return 0; |
| 127 | } |
| 128 | |
Mark Salyzyn | 7718778 | 2015-05-12 15:21:31 -0700 | [diff] [blame] | 129 | CommandListener::SetBufSizeCmd::SetBufSizeCmd(LogBuffer *buf) : |
| 130 | LogCommand("setLogSize"), |
| 131 | mBuf(*buf) { |
| 132 | } |
Mark Salyzyn | dfa7a07 | 2014-02-11 12:29:31 -0800 | [diff] [blame] | 133 | |
| 134 | int CommandListener::SetBufSizeCmd::runCommand(SocketClient *cli, |
| 135 | int argc, char **argv) { |
Mark Salyzyn | 8daa9af | 2014-04-28 14:07:23 -0700 | [diff] [blame] | 136 | setname(); |
Mark Salyzyn | dfa7a07 | 2014-02-11 12:29:31 -0800 | [diff] [blame] | 137 | if (!clientHasLogCredentials(cli)) { |
| 138 | cli->sendMsg("Permission Denied"); |
| 139 | return 0; |
| 140 | } |
| 141 | |
| 142 | if (argc < 3) { |
| 143 | cli->sendMsg("Missing Argument"); |
| 144 | return 0; |
| 145 | } |
| 146 | |
| 147 | int id = atoi(argv[1]); |
| 148 | if ((id < LOG_ID_MIN) || (LOG_ID_MAX <= id)) { |
| 149 | cli->sendMsg("Range Error"); |
| 150 | return 0; |
| 151 | } |
| 152 | |
| 153 | unsigned long size = atol(argv[2]); |
| 154 | if (mBuf.setSize((log_id_t) id, size)) { |
| 155 | cli->sendMsg("Range Error"); |
| 156 | return 0; |
| 157 | } |
| 158 | |
| 159 | cli->sendMsg("success"); |
| 160 | return 0; |
| 161 | } |
| 162 | |
Mark Salyzyn | 7718778 | 2015-05-12 15:21:31 -0700 | [diff] [blame] | 163 | CommandListener::GetBufSizeUsedCmd::GetBufSizeUsedCmd(LogBuffer *buf) : |
| 164 | LogCommand("getLogSizeUsed"), |
| 165 | mBuf(*buf) { |
| 166 | } |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 167 | |
| 168 | int CommandListener::GetBufSizeUsedCmd::runCommand(SocketClient *cli, |
| 169 | int argc, char **argv) { |
Mark Salyzyn | 8daa9af | 2014-04-28 14:07:23 -0700 | [diff] [blame] | 170 | setname(); |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 171 | if (argc < 2) { |
| 172 | cli->sendMsg("Missing Argument"); |
| 173 | return 0; |
| 174 | } |
| 175 | |
| 176 | int id = atoi(argv[1]); |
Mark Salyzyn | 1114f18 | 2014-02-21 13:54:07 -0800 | [diff] [blame] | 177 | if ((id < LOG_ID_MIN) || (LOG_ID_MAX <= id)) { |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 178 | cli->sendMsg("Range Error"); |
| 179 | return 0; |
| 180 | } |
| 181 | |
| 182 | unsigned long size = mBuf.getSizeUsed((log_id_t) id); |
| 183 | char buf[512]; |
| 184 | snprintf(buf, sizeof(buf), "%lu", size); |
| 185 | cli->sendMsg(buf); |
| 186 | return 0; |
| 187 | } |
Mark Salyzyn | 34facab | 2014-02-06 14:48:50 -0800 | [diff] [blame] | 188 | |
Mark Salyzyn | 7718778 | 2015-05-12 15:21:31 -0700 | [diff] [blame] | 189 | CommandListener::GetStatisticsCmd::GetStatisticsCmd(LogBuffer *buf) : |
| 190 | LogCommand("getStatistics"), |
| 191 | mBuf(*buf) { |
| 192 | } |
Mark Salyzyn | 34facab | 2014-02-06 14:48:50 -0800 | [diff] [blame] | 193 | |
Mark Salyzyn | dfa7a07 | 2014-02-11 12:29:31 -0800 | [diff] [blame] | 194 | static void package_string(char **strp) { |
| 195 | const char *a = *strp; |
| 196 | if (!a) { |
| 197 | a = ""; |
| 198 | } |
| 199 | |
| 200 | // Calculate total buffer size prefix, count is the string length w/o nul |
| 201 | char fmt[32]; |
| 202 | for(size_t l = strlen(a), y = 0, x = 6; y != x; y = x, x = strlen(fmt) - 2) { |
| 203 | snprintf(fmt, sizeof(fmt), "%zu\n%%s\n\f", l + x); |
| 204 | } |
| 205 | |
| 206 | char *b = *strp; |
| 207 | *strp = NULL; |
| 208 | asprintf(strp, fmt, a); |
| 209 | free(b); |
| 210 | } |
| 211 | |
Mark Salyzyn | 34facab | 2014-02-06 14:48:50 -0800 | [diff] [blame] | 212 | int CommandListener::GetStatisticsCmd::runCommand(SocketClient *cli, |
| 213 | int argc, char **argv) { |
Mark Salyzyn | 8daa9af | 2014-04-28 14:07:23 -0700 | [diff] [blame] | 214 | setname(); |
Mark Salyzyn | 34facab | 2014-02-06 14:48:50 -0800 | [diff] [blame] | 215 | uid_t uid = cli->getUid(); |
Mark Salyzyn | 34facab | 2014-02-06 14:48:50 -0800 | [diff] [blame] | 216 | if (clientHasLogCredentials(cli)) { |
| 217 | uid = AID_ROOT; |
| 218 | } |
| 219 | |
| 220 | unsigned int logMask = -1; |
| 221 | if (argc > 1) { |
| 222 | logMask = 0; |
| 223 | for (int i = 1; i < argc; ++i) { |
| 224 | int id = atoi(argv[i]); |
| 225 | if ((id < LOG_ID_MIN) || (LOG_ID_MAX <= id)) { |
| 226 | cli->sendMsg("Range Error"); |
| 227 | return 0; |
| 228 | } |
| 229 | logMask |= 1 << id; |
| 230 | } |
| 231 | } |
| 232 | |
| 233 | char *buf = NULL; |
| 234 | |
| 235 | mBuf.formatStatistics(&buf, uid, logMask); |
| 236 | if (!buf) { |
| 237 | cli->sendMsg("Failed"); |
| 238 | } else { |
Mark Salyzyn | dfa7a07 | 2014-02-11 12:29:31 -0800 | [diff] [blame] | 239 | package_string(&buf); |
Mark Salyzyn | 34facab | 2014-02-06 14:48:50 -0800 | [diff] [blame] | 240 | cli->sendMsg(buf); |
| 241 | free(buf); |
| 242 | } |
| 243 | return 0; |
| 244 | } |
Mark Salyzyn | dfa7a07 | 2014-02-11 12:29:31 -0800 | [diff] [blame] | 245 | |
Mark Salyzyn | 7718778 | 2015-05-12 15:21:31 -0700 | [diff] [blame] | 246 | CommandListener::GetPruneListCmd::GetPruneListCmd(LogBuffer *buf) : |
| 247 | LogCommand("getPruneList"), |
| 248 | mBuf(*buf) { |
| 249 | } |
Mark Salyzyn | dfa7a07 | 2014-02-11 12:29:31 -0800 | [diff] [blame] | 250 | |
| 251 | int CommandListener::GetPruneListCmd::runCommand(SocketClient *cli, |
| 252 | int /*argc*/, char ** /*argv*/) { |
Mark Salyzyn | 8daa9af | 2014-04-28 14:07:23 -0700 | [diff] [blame] | 253 | setname(); |
Mark Salyzyn | dfa7a07 | 2014-02-11 12:29:31 -0800 | [diff] [blame] | 254 | char *buf = NULL; |
| 255 | mBuf.formatPrune(&buf); |
| 256 | if (!buf) { |
| 257 | cli->sendMsg("Failed"); |
| 258 | } else { |
| 259 | package_string(&buf); |
| 260 | cli->sendMsg(buf); |
| 261 | free(buf); |
| 262 | } |
| 263 | return 0; |
| 264 | } |
| 265 | |
Mark Salyzyn | 7718778 | 2015-05-12 15:21:31 -0700 | [diff] [blame] | 266 | CommandListener::SetPruneListCmd::SetPruneListCmd(LogBuffer *buf) : |
| 267 | LogCommand("setPruneList"), |
| 268 | mBuf(*buf) { |
| 269 | } |
Mark Salyzyn | dfa7a07 | 2014-02-11 12:29:31 -0800 | [diff] [blame] | 270 | |
| 271 | int CommandListener::SetPruneListCmd::runCommand(SocketClient *cli, |
| 272 | int argc, char **argv) { |
Mark Salyzyn | 8daa9af | 2014-04-28 14:07:23 -0700 | [diff] [blame] | 273 | setname(); |
Mark Salyzyn | dfa7a07 | 2014-02-11 12:29:31 -0800 | [diff] [blame] | 274 | if (!clientHasLogCredentials(cli)) { |
| 275 | cli->sendMsg("Permission Denied"); |
| 276 | return 0; |
| 277 | } |
| 278 | |
| 279 | char *cp = NULL; |
| 280 | for (int i = 1; i < argc; ++i) { |
| 281 | char *p = cp; |
| 282 | if (p) { |
| 283 | cp = NULL; |
| 284 | asprintf(&cp, "%s %s", p, argv[i]); |
| 285 | free(p); |
| 286 | } else { |
| 287 | asprintf(&cp, "%s", argv[i]); |
| 288 | } |
| 289 | } |
| 290 | |
| 291 | int ret = mBuf.initPrune(cp); |
| 292 | free(cp); |
| 293 | |
| 294 | if (ret) { |
| 295 | cli->sendMsg("Invalid"); |
| 296 | return 0; |
| 297 | } |
| 298 | |
| 299 | cli->sendMsg("success"); |
| 300 | |
| 301 | return 0; |
| 302 | } |
Mark Salyzyn | dfc47e8 | 2014-03-24 10:26:47 -0700 | [diff] [blame] | 303 | |
Mark Salyzyn | 7718778 | 2015-05-12 15:21:31 -0700 | [diff] [blame] | 304 | CommandListener::ReinitCmd::ReinitCmd() : LogCommand("reinit") { |
| 305 | } |
Mark Salyzyn | 11e55cb | 2015-03-10 16:45:17 -0700 | [diff] [blame] | 306 | |
| 307 | int CommandListener::ReinitCmd::runCommand(SocketClient *cli, |
| 308 | int /*argc*/, char ** /*argv*/) { |
| 309 | setname(); |
| 310 | |
| 311 | reinit_signal_handler(SIGHUP); |
| 312 | |
| 313 | cli->sendMsg("success"); |
| 314 | |
| 315 | return 0; |
| 316 | } |
| 317 | |
Mark Salyzyn | dfc47e8 | 2014-03-24 10:26:47 -0700 | [diff] [blame] | 318 | int CommandListener::getLogSocket() { |
| 319 | static const char socketName[] = "logd"; |
| 320 | int sock = android_get_control_socket(socketName); |
| 321 | |
| 322 | if (sock < 0) { |
| 323 | sock = socket_local_server(socketName, |
| 324 | ANDROID_SOCKET_NAMESPACE_RESERVED, |
| 325 | SOCK_STREAM); |
| 326 | } |
| 327 | |
| 328 | return sock; |
| 329 | } |