The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2008 The Android Open Source Project |
| 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 | |
Elliott Hughes | 8d82ea0 | 2015-02-06 20:15:18 -0800 | [diff] [blame] | 17 | #include <ctype.h> |
Rom Lemarchand | 6a52443 | 2015-02-28 06:39:11 -0800 | [diff] [blame] | 18 | #include <dirent.h> |
Elliott Hughes | 8d82ea0 | 2015-02-06 20:15:18 -0800 | [diff] [blame] | 19 | #include <errno.h> |
| 20 | #include <fcntl.h> |
| 21 | #include <libgen.h> |
Elliott Hughes | cc86fb2 | 2015-03-17 20:01:13 -0700 | [diff] [blame] | 22 | #include <paths.h> |
Elliott Hughes | 8d82ea0 | 2015-02-06 20:15:18 -0800 | [diff] [blame] | 23 | #include <signal.h> |
| 24 | #include <stdarg.h> |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 25 | #include <stdio.h> |
| 26 | #include <stdlib.h> |
| 27 | #include <string.h> |
Elliott Hughes | 929f407 | 2015-04-24 21:13:44 -0700 | [diff] [blame] | 28 | #include <sys/epoll.h> |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 29 | #include <sys/mount.h> |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 30 | #include <sys/socket.h> |
Elliott Hughes | 8d82ea0 | 2015-02-06 20:15:18 -0800 | [diff] [blame] | 31 | #include <sys/stat.h> |
| 32 | #include <sys/types.h> |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 33 | #include <sys/un.h> |
Elliott Hughes | 8d82ea0 | 2015-02-06 20:15:18 -0800 | [diff] [blame] | 34 | #include <sys/wait.h> |
Elliott Hughes | 8d82ea0 | 2015-02-06 20:15:18 -0800 | [diff] [blame] | 35 | #include <unistd.h> |
| 36 | |
| 37 | #include <mtd/mtd-user.h> |
Stephen Smalley | e46f9d5 | 2012-01-13 08:48:47 -0500 | [diff] [blame] | 38 | |
Stephen Smalley | e46f9d5 | 2012-01-13 08:48:47 -0500 | [diff] [blame] | 39 | #include <selinux/selinux.h> |
| 40 | #include <selinux/label.h> |
Stephen Smalley | ae6f3d7 | 2012-05-01 15:02:53 -0400 | [diff] [blame] | 41 | #include <selinux/android.h> |
Stephen Smalley | e46f9d5 | 2012-01-13 08:48:47 -0500 | [diff] [blame] | 42 | |
Elliott Hughes | 4f71319 | 2015-12-04 22:00:26 -0800 | [diff] [blame] | 43 | #include <android-base/file.h> |
| 44 | #include <android-base/stringprintf.h> |
| 45 | #include <android-base/strings.h> |
Nick Kralevich | 56fa0ac | 2013-06-24 17:41:40 -0700 | [diff] [blame] | 46 | #include <cutils/android_reboot.h> |
Alex Klyubin | 0d872d8 | 2013-08-16 13:19:24 -0700 | [diff] [blame] | 47 | #include <cutils/fs.h> |
Elliott Hughes | 8d82ea0 | 2015-02-06 20:15:18 -0800 | [diff] [blame] | 48 | #include <cutils/iosched_policy.h> |
| 49 | #include <cutils/list.h> |
| 50 | #include <cutils/sockets.h> |
Colin Cross | f83d0b9 | 2010-04-21 12:04:20 -0700 | [diff] [blame] | 51 | #include <private/android_filesystem_config.h> |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 52 | |
Rom Lemarchand | 6a52443 | 2015-02-28 06:39:11 -0800 | [diff] [blame] | 53 | #include <memory> |
| 54 | |
Tom Cherry | fa0c21c | 2015-07-23 17:53:11 -0700 | [diff] [blame] | 55 | #include "action.h" |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 56 | #include "bootchart.h" |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 57 | #include "devices.h" |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 58 | #include "import_parser.h" |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 59 | #include "init.h" |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 60 | #include "init_parser.h" |
| 61 | #include "keychords.h" |
Colin Cross | ed8a7d8 | 2010-04-19 17:05:34 -0700 | [diff] [blame] | 62 | #include "log.h" |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 63 | #include "property_service.h" |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 64 | #include "service.h" |
Colin Cross | 9c5366b | 2010-04-13 19:48:59 -0700 | [diff] [blame] | 65 | #include "signal_handler.h" |
Colin Cross | f83d0b9 | 2010-04-21 12:04:20 -0700 | [diff] [blame] | 66 | #include "ueventd.h" |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 67 | #include "util.h" |
Arve Hjønnevåg | d97d907 | 2012-06-13 21:51:56 -0700 | [diff] [blame] | 68 | #include "watchdogd.h" |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 69 | |
Stephen Smalley | e46f9d5 | 2012-01-13 08:48:47 -0500 | [diff] [blame] | 70 | struct selabel_handle *sehandle; |
rpcraig | 63207cd | 2012-08-09 10:05:49 -0400 | [diff] [blame] | 71 | struct selabel_handle *sehandle_prop; |
Stephen Smalley | e46f9d5 | 2012-01-13 08:48:47 -0500 | [diff] [blame] | 72 | |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 73 | static int property_triggers_enabled = 0; |
| 74 | |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 75 | static char qemu[32]; |
| 76 | |
Viorel Suman | 70daa67 | 2016-03-21 10:08:07 +0200 | [diff] [blame] | 77 | std::string default_console = "/dev/console"; |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 78 | static time_t process_needs_restart; |
| 79 | |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 80 | const char *ENV[32]; |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 81 | |
Elliott Hughes | 8d82ea0 | 2015-02-06 20:15:18 -0800 | [diff] [blame] | 82 | bool waiting_for_exec = false; |
| 83 | |
Elliott Hughes | 929f407 | 2015-04-24 21:13:44 -0700 | [diff] [blame] | 84 | static int epoll_fd = -1; |
| 85 | |
| 86 | void register_epoll_handler(int fd, void (*fn)()) { |
| 87 | epoll_event ev; |
| 88 | ev.events = EPOLLIN; |
| 89 | ev.data.ptr = reinterpret_cast<void*>(fn); |
| 90 | if (epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fd, &ev) == -1) { |
| 91 | ERROR("epoll_ctl failed: %s\n", strerror(errno)); |
| 92 | } |
| 93 | } |
| 94 | |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 95 | /* add_environment - add "key=value" to the current environment */ |
| 96 | int add_environment(const char *key, const char *val) |
| 97 | { |
James Morrissey | 381341f | 2014-05-16 11:36:36 +0100 | [diff] [blame] | 98 | size_t n; |
| 99 | size_t key_len = strlen(key); |
Vladimir Chtchetkine | 2b99543 | 2011-09-28 09:55:31 -0700 | [diff] [blame] | 100 | |
James Morrissey | 381341f | 2014-05-16 11:36:36 +0100 | [diff] [blame] | 101 | /* The last environment entry is reserved to terminate the list */ |
| 102 | for (n = 0; n < (ARRAY_SIZE(ENV) - 1); n++) { |
| 103 | |
| 104 | /* Delete any existing entry for this key */ |
| 105 | if (ENV[n] != NULL) { |
| 106 | size_t entry_key_len = strcspn(ENV[n], "="); |
| 107 | if ((entry_key_len == key_len) && (strncmp(ENV[n], key, entry_key_len) == 0)) { |
| 108 | free((char*)ENV[n]); |
| 109 | ENV[n] = NULL; |
| 110 | } |
| 111 | } |
| 112 | |
| 113 | /* Add entry if a free slot is available */ |
| 114 | if (ENV[n] == NULL) { |
Elliott Hughes | f3cf438 | 2015-02-03 17:12:07 -0800 | [diff] [blame] | 115 | char* entry; |
| 116 | asprintf(&entry, "%s=%s", key, val); |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 117 | ENV[n] = entry; |
| 118 | return 0; |
| 119 | } |
| 120 | } |
| 121 | |
James Morrissey | 381341f | 2014-05-16 11:36:36 +0100 | [diff] [blame] | 122 | ERROR("No env. room to store: '%s':'%s'\n", key, val); |
| 123 | |
| 124 | return -1; |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 125 | } |
| 126 | |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 127 | void property_changed(const char *name, const char *value) |
| 128 | { |
Colin Cross | ebc6ff1 | 2010-04-13 19:52:01 -0700 | [diff] [blame] | 129 | if (property_triggers_enabled) |
Tom Cherry | fa0c21c | 2015-07-23 17:53:11 -0700 | [diff] [blame] | 130 | ActionManager::GetInstance().QueuePropertyTrigger(name, value); |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 131 | } |
| 132 | |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 133 | static void restart_processes() |
| 134 | { |
| 135 | process_needs_restart = 0; |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 136 | ServiceManager::GetInstance(). |
| 137 | ForEachServiceWithFlags(SVC_RESTARTING, [] (Service* s) { |
| 138 | s->RestartIfNeeded(process_needs_restart); |
| 139 | }); |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 140 | } |
| 141 | |
Elliott Hughes | bdeac39 | 2016-04-12 15:38:27 -0700 | [diff] [blame^] | 142 | void handle_control_message(const std::string& msg, const std::string& name) { |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 143 | Service* svc = ServiceManager::GetInstance().FindServiceByName(name); |
Elliott Hughes | bdeac39 | 2016-04-12 15:38:27 -0700 | [diff] [blame^] | 144 | if (svc == nullptr) { |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 145 | ERROR("no such service '%s'\n", name.c_str()); |
Elliott Hughes | bdeac39 | 2016-04-12 15:38:27 -0700 | [diff] [blame^] | 146 | return; |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 147 | } |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 148 | |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 149 | if (msg == "start") { |
Elliott Hughes | bdeac39 | 2016-04-12 15:38:27 -0700 | [diff] [blame^] | 150 | svc->Start(); |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 151 | } else if (msg == "stop") { |
Elliott Hughes | bdeac39 | 2016-04-12 15:38:27 -0700 | [diff] [blame^] | 152 | svc->Stop(); |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 153 | } else if (msg == "restart") { |
Elliott Hughes | bdeac39 | 2016-04-12 15:38:27 -0700 | [diff] [blame^] | 154 | svc->Restart(); |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 155 | } else { |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 156 | ERROR("unknown control msg '%s'\n", msg.c_str()); |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 157 | } |
| 158 | } |
| 159 | |
Tom Cherry | 96f6731 | 2015-07-30 13:52:55 -0700 | [diff] [blame] | 160 | static int wait_for_coldboot_done_action(const std::vector<std::string>& args) { |
Elliott Hughes | c6c26ed | 2015-04-24 18:50:30 -0700 | [diff] [blame] | 161 | Timer t; |
| 162 | |
| 163 | NOTICE("Waiting for %s...\n", COLDBOOT_DONE); |
Elliott Hughes | c7331d0 | 2015-05-14 12:03:14 -0700 | [diff] [blame] | 164 | // Any longer than 1s is an unreasonable length of time to delay booting. |
| 165 | // If you're hitting this timeout, check that you didn't make your |
| 166 | // sepolicy regular expressions too expensive (http://b/19899875). |
| 167 | if (wait_for_file(COLDBOOT_DONE, 1)) { |
Andreas Gampe | a016c42 | 2014-11-24 19:52:41 -0800 | [diff] [blame] | 168 | ERROR("Timed out waiting for %s\n", COLDBOOT_DONE); |
Elliott Hughes | c6c26ed | 2015-04-24 18:50:30 -0700 | [diff] [blame] | 169 | } |
| 170 | |
| 171 | NOTICE("Waiting for %s took %.2fs.\n", COLDBOOT_DONE, t.duration()); |
| 172 | return 0; |
Colin Cross | ebc6ff1 | 2010-04-13 19:52:01 -0700 | [diff] [blame] | 173 | } |
| 174 | |
Alex Klyubin | 0d872d8 | 2013-08-16 13:19:24 -0700 | [diff] [blame] | 175 | /* |
| 176 | * Writes 512 bytes of output from Hardware RNG (/dev/hw_random, backed |
| 177 | * by Linux kernel's hw_random framework) into Linux RNG's via /dev/urandom. |
| 178 | * Does nothing if Hardware RNG is not present. |
| 179 | * |
| 180 | * Since we don't yet trust the quality of Hardware RNG, these bytes are not |
| 181 | * mixed into the primary pool of Linux RNG and the entropy estimate is left |
| 182 | * unmodified. |
| 183 | * |
| 184 | * If the HW RNG device /dev/hw_random is present, we require that at least |
| 185 | * 512 bytes read from it are written into Linux RNG. QA is expected to catch |
| 186 | * devices/configurations where these I/O operations are blocking for a long |
| 187 | * time. We do not reboot or halt on failures, as this is a best-effort |
| 188 | * attempt. |
| 189 | */ |
Tom Cherry | 96f6731 | 2015-07-30 13:52:55 -0700 | [diff] [blame] | 190 | static int mix_hwrng_into_linux_rng_action(const std::vector<std::string>& args) |
Alex Klyubin | 0d872d8 | 2013-08-16 13:19:24 -0700 | [diff] [blame] | 191 | { |
| 192 | int result = -1; |
| 193 | int hwrandom_fd = -1; |
| 194 | int urandom_fd = -1; |
| 195 | char buf[512]; |
| 196 | ssize_t chunk_size; |
| 197 | size_t total_bytes_written = 0; |
| 198 | |
| 199 | hwrandom_fd = TEMP_FAILURE_RETRY( |
Nick Kralevich | 45a884f | 2015-02-02 14:37:22 -0800 | [diff] [blame] | 200 | open("/dev/hw_random", O_RDONLY | O_NOFOLLOW | O_CLOEXEC)); |
Alex Klyubin | 0d872d8 | 2013-08-16 13:19:24 -0700 | [diff] [blame] | 201 | if (hwrandom_fd == -1) { |
| 202 | if (errno == ENOENT) { |
| 203 | ERROR("/dev/hw_random not found\n"); |
| 204 | /* It's not an error to not have a Hardware RNG. */ |
| 205 | result = 0; |
| 206 | } else { |
| 207 | ERROR("Failed to open /dev/hw_random: %s\n", strerror(errno)); |
| 208 | } |
| 209 | goto ret; |
| 210 | } |
| 211 | |
| 212 | urandom_fd = TEMP_FAILURE_RETRY( |
Nick Kralevich | 45a884f | 2015-02-02 14:37:22 -0800 | [diff] [blame] | 213 | open("/dev/urandom", O_WRONLY | O_NOFOLLOW | O_CLOEXEC)); |
Alex Klyubin | 0d872d8 | 2013-08-16 13:19:24 -0700 | [diff] [blame] | 214 | if (urandom_fd == -1) { |
| 215 | ERROR("Failed to open /dev/urandom: %s\n", strerror(errno)); |
| 216 | goto ret; |
| 217 | } |
| 218 | |
| 219 | while (total_bytes_written < sizeof(buf)) { |
| 220 | chunk_size = TEMP_FAILURE_RETRY( |
| 221 | read(hwrandom_fd, buf, sizeof(buf) - total_bytes_written)); |
| 222 | if (chunk_size == -1) { |
| 223 | ERROR("Failed to read from /dev/hw_random: %s\n", strerror(errno)); |
| 224 | goto ret; |
| 225 | } else if (chunk_size == 0) { |
| 226 | ERROR("Failed to read from /dev/hw_random: EOF\n"); |
| 227 | goto ret; |
| 228 | } |
| 229 | |
| 230 | chunk_size = TEMP_FAILURE_RETRY(write(urandom_fd, buf, chunk_size)); |
| 231 | if (chunk_size == -1) { |
| 232 | ERROR("Failed to write to /dev/urandom: %s\n", strerror(errno)); |
| 233 | goto ret; |
| 234 | } |
| 235 | total_bytes_written += chunk_size; |
| 236 | } |
| 237 | |
Elliott Hughes | ccecf14 | 2014-01-16 10:53:11 -0800 | [diff] [blame] | 238 | INFO("Mixed %zu bytes from /dev/hw_random into /dev/urandom", |
Alex Klyubin | 0d872d8 | 2013-08-16 13:19:24 -0700 | [diff] [blame] | 239 | total_bytes_written); |
| 240 | result = 0; |
| 241 | |
| 242 | ret: |
| 243 | if (hwrandom_fd != -1) { |
| 244 | close(hwrandom_fd); |
| 245 | } |
| 246 | if (urandom_fd != -1) { |
| 247 | close(urandom_fd); |
| 248 | } |
Alex Klyubin | 0d872d8 | 2013-08-16 13:19:24 -0700 | [diff] [blame] | 249 | return result; |
| 250 | } |
| 251 | |
Tom Cherry | 96f6731 | 2015-07-30 13:52:55 -0700 | [diff] [blame] | 252 | static int keychord_init_action(const std::vector<std::string>& args) |
Colin Cross | ebc6ff1 | 2010-04-13 19:52:01 -0700 | [diff] [blame] | 253 | { |
| 254 | keychord_init(); |
| 255 | return 0; |
| 256 | } |
| 257 | |
Tom Cherry | 96f6731 | 2015-07-30 13:52:55 -0700 | [diff] [blame] | 258 | static int console_init_action(const std::vector<std::string>& args) |
Colin Cross | ebc6ff1 | 2010-04-13 19:52:01 -0700 | [diff] [blame] | 259 | { |
Viorel Suman | efc7275 | 2016-03-21 10:23:43 +0200 | [diff] [blame] | 260 | std::string console = property_get("ro.boot.console"); |
| 261 | if (!console.empty()) { |
Viorel Suman | 70daa67 | 2016-03-21 10:08:07 +0200 | [diff] [blame] | 262 | default_console = "/dev/" + console; |
Colin Cross | ebc6ff1 | 2010-04-13 19:52:01 -0700 | [diff] [blame] | 263 | } |
Colin Cross | ebc6ff1 | 2010-04-13 19:52:01 -0700 | [diff] [blame] | 264 | return 0; |
| 265 | } |
| 266 | |
Elliott Hughes | e5ce30f | 2015-05-06 19:19:24 -0700 | [diff] [blame] | 267 | static void import_kernel_nv(const std::string& key, const std::string& value, bool for_emulator) { |
| 268 | if (key.empty()) return; |
Dima Zavin | 5511c84 | 2011-12-19 11:21:32 -0800 | [diff] [blame] | 269 | |
| 270 | if (for_emulator) { |
Elliott Hughes | e5ce30f | 2015-05-06 19:19:24 -0700 | [diff] [blame] | 271 | // In the emulator, export any kernel option with the "ro.kernel." prefix. |
| 272 | property_set(android::base::StringPrintf("ro.kernel.%s", key.c_str()).c_str(), value.c_str()); |
Dima Zavin | 5511c84 | 2011-12-19 11:21:32 -0800 | [diff] [blame] | 273 | return; |
| 274 | } |
| 275 | |
Elliott Hughes | e5ce30f | 2015-05-06 19:19:24 -0700 | [diff] [blame] | 276 | if (key == "qemu") { |
| 277 | strlcpy(qemu, value.c_str(), sizeof(qemu)); |
| 278 | } else if (android::base::StartsWith(key, "androidboot.")) { |
| 279 | property_set(android::base::StringPrintf("ro.boot.%s", key.c_str() + 12).c_str(), |
| 280 | value.c_str()); |
Dima Zavin | 5511c84 | 2011-12-19 11:21:32 -0800 | [diff] [blame] | 281 | } |
| 282 | } |
| 283 | |
Sami Tolvanen | 9e9efca | 2015-12-07 12:33:58 +0000 | [diff] [blame] | 284 | static void export_oem_lock_status() { |
| 285 | if (property_get("ro.oem_unlock_supported") != "1") { |
| 286 | return; |
| 287 | } |
| 288 | |
| 289 | std::string value = property_get("ro.boot.verifiedbootstate"); |
| 290 | |
| 291 | if (!value.empty()) { |
| 292 | property_set("ro.boot.flash.locked", value == "orange" ? "0" : "1"); |
| 293 | } |
| 294 | } |
| 295 | |
Elliott Hughes | d679bc9 | 2015-03-20 08:50:46 -0700 | [diff] [blame] | 296 | static void export_kernel_boot_props() { |
Dima Zavin | 5511c84 | 2011-12-19 11:21:32 -0800 | [diff] [blame] | 297 | struct { |
| 298 | const char *src_prop; |
Elliott Hughes | d679bc9 | 2015-03-20 08:50:46 -0700 | [diff] [blame] | 299 | const char *dst_prop; |
| 300 | const char *default_value; |
Dima Zavin | 5511c84 | 2011-12-19 11:21:32 -0800 | [diff] [blame] | 301 | } prop_map[] = { |
Elliott Hughes | d679bc9 | 2015-03-20 08:50:46 -0700 | [diff] [blame] | 302 | { "ro.boot.serialno", "ro.serialno", "", }, |
| 303 | { "ro.boot.mode", "ro.bootmode", "unknown", }, |
| 304 | { "ro.boot.baseband", "ro.baseband", "unknown", }, |
Dima Zavin | 5511c84 | 2011-12-19 11:21:32 -0800 | [diff] [blame] | 305 | { "ro.boot.bootloader", "ro.bootloader", "unknown", }, |
Elliott Hughes | d679bc9 | 2015-03-20 08:50:46 -0700 | [diff] [blame] | 306 | { "ro.boot.hardware", "ro.hardware", "unknown", }, |
| 307 | { "ro.boot.revision", "ro.revision", "0", }, |
Dima Zavin | 5511c84 | 2011-12-19 11:21:32 -0800 | [diff] [blame] | 308 | }; |
Elliott Hughes | d679bc9 | 2015-03-20 08:50:46 -0700 | [diff] [blame] | 309 | for (size_t i = 0; i < ARRAY_SIZE(prop_map); i++) { |
Yabin Cui | 74edcea | 2015-07-24 10:11:05 -0700 | [diff] [blame] | 310 | std::string value = property_get(prop_map[i].src_prop); |
| 311 | property_set(prop_map[i].dst_prop, (!value.empty()) ? value.c_str() : prop_map[i].default_value); |
Dima Zavin | 5511c84 | 2011-12-19 11:21:32 -0800 | [diff] [blame] | 312 | } |
Dima Zavin | 5511c84 | 2011-12-19 11:21:32 -0800 | [diff] [blame] | 313 | } |
Colin Cross | ebc6ff1 | 2010-04-13 19:52:01 -0700 | [diff] [blame] | 314 | |
Elliott Hughes | e5ce30f | 2015-05-06 19:19:24 -0700 | [diff] [blame] | 315 | static void process_kernel_dt() { |
Rom Lemarchand | 6a52443 | 2015-02-28 06:39:11 -0800 | [diff] [blame] | 316 | static const char android_dir[] = "/proc/device-tree/firmware/android"; |
| 317 | |
| 318 | std::string file_name = android::base::StringPrintf("%s/compatible", android_dir); |
| 319 | |
| 320 | std::string dt_file; |
| 321 | android::base::ReadFileToString(file_name, &dt_file); |
| 322 | if (!dt_file.compare("android,firmware")) { |
| 323 | ERROR("firmware/android is not compatible with 'android,firmware'\n"); |
| 324 | return; |
| 325 | } |
| 326 | |
| 327 | std::unique_ptr<DIR, int(*)(DIR*)>dir(opendir(android_dir), closedir); |
Elliott Hughes | e5ce30f | 2015-05-06 19:19:24 -0700 | [diff] [blame] | 328 | if (!dir) return; |
Rom Lemarchand | 6a52443 | 2015-02-28 06:39:11 -0800 | [diff] [blame] | 329 | |
| 330 | struct dirent *dp; |
| 331 | while ((dp = readdir(dir.get())) != NULL) { |
Rom Lemarchand | 1dcf325 | 2015-11-08 17:51:50 -0800 | [diff] [blame] | 332 | if (dp->d_type != DT_REG || !strcmp(dp->d_name, "compatible") || !strcmp(dp->d_name, "name")) { |
Rom Lemarchand | 6a52443 | 2015-02-28 06:39:11 -0800 | [diff] [blame] | 333 | continue; |
Elliott Hughes | e5ce30f | 2015-05-06 19:19:24 -0700 | [diff] [blame] | 334 | } |
Rom Lemarchand | 6a52443 | 2015-02-28 06:39:11 -0800 | [diff] [blame] | 335 | |
| 336 | file_name = android::base::StringPrintf("%s/%s", android_dir, dp->d_name); |
| 337 | |
| 338 | android::base::ReadFileToString(file_name, &dt_file); |
| 339 | std::replace(dt_file.begin(), dt_file.end(), ',', '.'); |
| 340 | |
| 341 | std::string property_name = android::base::StringPrintf("ro.boot.%s", dp->d_name); |
Elliott Hughes | db3f267 | 2015-03-20 09:45:18 -0700 | [diff] [blame] | 342 | property_set(property_name.c_str(), dt_file.c_str()); |
Rom Lemarchand | 6a52443 | 2015-02-28 06:39:11 -0800 | [diff] [blame] | 343 | } |
| 344 | } |
| 345 | |
Elliott Hughes | e5ce30f | 2015-05-06 19:19:24 -0700 | [diff] [blame] | 346 | static void process_kernel_cmdline() { |
| 347 | // Don't expose the raw commandline to unprivileged processes. |
Dima Zavin | 5511c84 | 2011-12-19 11:21:32 -0800 | [diff] [blame] | 348 | chmod("/proc/cmdline", 0440); |
Colin Cross | ebc6ff1 | 2010-04-13 19:52:01 -0700 | [diff] [blame] | 349 | |
Elliott Hughes | e5ce30f | 2015-05-06 19:19:24 -0700 | [diff] [blame] | 350 | // The first pass does the common stuff, and finds if we are in qemu. |
| 351 | // The second pass is only necessary for qemu to export all kernel params |
| 352 | // as properties. |
Nick Kralevich | f667a32 | 2015-04-25 17:42:52 -0700 | [diff] [blame] | 353 | import_kernel_cmdline(false, import_kernel_nv); |
Elliott Hughes | e5ce30f | 2015-05-06 19:19:24 -0700 | [diff] [blame] | 354 | if (qemu[0]) import_kernel_cmdline(true, import_kernel_nv); |
Colin Cross | ebc6ff1 | 2010-04-13 19:52:01 -0700 | [diff] [blame] | 355 | } |
| 356 | |
Tom Cherry | 96f6731 | 2015-07-30 13:52:55 -0700 | [diff] [blame] | 357 | static int queue_property_triggers_action(const std::vector<std::string>& args) |
Colin Cross | ebc6ff1 | 2010-04-13 19:52:01 -0700 | [diff] [blame] | 358 | { |
Tom Cherry | fa0c21c | 2015-07-23 17:53:11 -0700 | [diff] [blame] | 359 | ActionManager::GetInstance().QueueAllPropertyTriggers(); |
Colin Cross | ebc6ff1 | 2010-04-13 19:52:01 -0700 | [diff] [blame] | 360 | /* enable property triggers */ |
| 361 | property_triggers_enabled = 1; |
| 362 | return 0; |
| 363 | } |
| 364 | |
Elliott Hughes | c6c26ed | 2015-04-24 18:50:30 -0700 | [diff] [blame] | 365 | static void selinux_init_all_handles(void) |
Stephen Smalley | e46f9d5 | 2012-01-13 08:48:47 -0500 | [diff] [blame] | 366 | { |
Stephen Smalley | ae6f3d7 | 2012-05-01 15:02:53 -0400 | [diff] [blame] | 367 | sehandle = selinux_android_file_context_handle(); |
Stephen Smalley | dbd37f2 | 2014-01-28 10:34:09 -0500 | [diff] [blame] | 368 | selinux_android_set_sehandle(sehandle); |
rpcraig | 63207cd | 2012-08-09 10:05:49 -0400 | [diff] [blame] | 369 | sehandle_prop = selinux_android_prop_context_handle(); |
Stephen Smalley | ae6f3d7 | 2012-05-01 15:02:53 -0400 | [diff] [blame] | 370 | } |
Stephen Smalley | e46f9d5 | 2012-01-13 08:48:47 -0500 | [diff] [blame] | 371 | |
Nick Kralevich | d34e407 | 2015-04-28 12:39:41 -0700 | [diff] [blame] | 372 | enum selinux_enforcing_status { SELINUX_PERMISSIVE, SELINUX_ENFORCING }; |
Nick Kralevich | f667a32 | 2015-04-25 17:42:52 -0700 | [diff] [blame] | 373 | |
| 374 | static selinux_enforcing_status selinux_status_from_cmdline() { |
| 375 | selinux_enforcing_status status = SELINUX_ENFORCING; |
| 376 | |
Elliott Hughes | e5ce30f | 2015-05-06 19:19:24 -0700 | [diff] [blame] | 377 | import_kernel_cmdline(false, [&](const std::string& key, const std::string& value, bool in_qemu) { |
| 378 | if (key == "androidboot.selinux" && value == "permissive") { |
| 379 | status = SELINUX_PERMISSIVE; |
Nick Kralevich | f667a32 | 2015-04-25 17:42:52 -0700 | [diff] [blame] | 380 | } |
Elliott Hughes | e5ce30f | 2015-05-06 19:19:24 -0700 | [diff] [blame] | 381 | }); |
Nick Kralevich | f667a32 | 2015-04-25 17:42:52 -0700 | [diff] [blame] | 382 | |
| 383 | return status; |
| 384 | } |
| 385 | |
Nick Kralevich | 935bd3e | 2013-06-26 15:37:26 -0700 | [diff] [blame] | 386 | static bool selinux_is_enforcing(void) |
| 387 | { |
Nick Kralevich | d34e407 | 2015-04-28 12:39:41 -0700 | [diff] [blame] | 388 | if (ALLOW_PERMISSIVE_SELINUX) { |
Nick Kralevich | f667a32 | 2015-04-25 17:42:52 -0700 | [diff] [blame] | 389 | return selinux_status_from_cmdline() == SELINUX_ENFORCING; |
Nick Kralevich | 935bd3e | 2013-06-26 15:37:26 -0700 | [diff] [blame] | 390 | } |
Nick Kralevich | 935bd3e | 2013-06-26 15:37:26 -0700 | [diff] [blame] | 391 | return true; |
| 392 | } |
| 393 | |
Elliott Hughes | da40c00 | 2015-03-27 23:20:44 -0700 | [diff] [blame] | 394 | static int audit_callback(void *data, security_class_t /*cls*/, char *buf, size_t len) { |
William Roberts | d7aea44 | 2015-10-01 16:03:47 -0700 | [diff] [blame] | 395 | |
| 396 | property_audit_data *d = reinterpret_cast<property_audit_data*>(data); |
| 397 | |
| 398 | if (!d || !d->name || !d->cr) { |
| 399 | ERROR("audit_callback invoked with null data arguments!"); |
| 400 | return 0; |
| 401 | } |
| 402 | |
| 403 | snprintf(buf, len, "property=%s pid=%d uid=%d gid=%d", d->name, |
| 404 | d->cr->pid, d->cr->uid, d->cr->gid); |
rpcraig | 63207cd | 2012-08-09 10:05:49 -0400 | [diff] [blame] | 405 | return 0; |
| 406 | } |
| 407 | |
Daniel Cashman | c8f026f | 2016-03-25 17:42:10 +0000 | [diff] [blame] | 408 | static void security_failure() { |
| 409 | ERROR("Security failure; rebooting into recovery mode...\n"); |
| 410 | android_reboot(ANDROID_RB_RESTART2, 0, "recovery"); |
| 411 | while (true) { pause(); } // never reached |
| 412 | } |
| 413 | |
Elliott Hughes | f65730e | 2015-04-24 18:38:17 +0000 | [diff] [blame] | 414 | static void selinux_initialize(bool in_kernel_domain) { |
Elliott Hughes | da40c00 | 2015-03-27 23:20:44 -0700 | [diff] [blame] | 415 | Timer t; |
Stephen Smalley | eb3f421 | 2014-02-12 16:17:00 -0500 | [diff] [blame] | 416 | |
Elliott Hughes | da40c00 | 2015-03-27 23:20:44 -0700 | [diff] [blame] | 417 | selinux_callback cb; |
| 418 | cb.func_log = selinux_klog_callback; |
| 419 | selinux_set_callback(SELINUX_CB_LOG, cb); |
| 420 | cb.func_audit = audit_callback; |
| 421 | selinux_set_callback(SELINUX_CB_AUDIT, cb); |
| 422 | |
Elliott Hughes | f65730e | 2015-04-24 18:38:17 +0000 | [diff] [blame] | 423 | if (in_kernel_domain) { |
Elliott Hughes | f65730e | 2015-04-24 18:38:17 +0000 | [diff] [blame] | 424 | INFO("Loading SELinux policy...\n"); |
| 425 | if (selinux_android_load_policy() < 0) { |
| 426 | ERROR("failed to load policy: %s\n", strerror(errno)); |
| 427 | security_failure(); |
| 428 | } |
| 429 | |
Nick Kralevich | d34e407 | 2015-04-28 12:39:41 -0700 | [diff] [blame] | 430 | bool kernel_enforcing = (security_getenforce() == 1); |
Elliott Hughes | f65730e | 2015-04-24 18:38:17 +0000 | [diff] [blame] | 431 | bool is_enforcing = selinux_is_enforcing(); |
Nick Kralevich | d34e407 | 2015-04-28 12:39:41 -0700 | [diff] [blame] | 432 | if (kernel_enforcing != is_enforcing) { |
| 433 | if (security_setenforce(is_enforcing)) { |
| 434 | ERROR("security_setenforce(%s) failed: %s\n", |
| 435 | is_enforcing ? "true" : "false", strerror(errno)); |
| 436 | security_failure(); |
| 437 | } |
| 438 | } |
Elliott Hughes | f65730e | 2015-04-24 18:38:17 +0000 | [diff] [blame] | 439 | |
Nick Kralevich | eedbe81 | 2015-04-25 14:10:03 -0700 | [diff] [blame] | 440 | if (write_file("/sys/fs/selinux/checkreqprot", "0") == -1) { |
| 441 | security_failure(); |
| 442 | } |
| 443 | |
Elliott Hughes | f65730e | 2015-04-24 18:38:17 +0000 | [diff] [blame] | 444 | NOTICE("(Initializing SELinux %s took %.2fs.)\n", |
| 445 | is_enforcing ? "enforcing" : "non-enforcing", t.duration()); |
| 446 | } else { |
| 447 | selinux_init_all_handles(); |
Nick Kralevich | 56fa0ac | 2013-06-24 17:41:40 -0700 | [diff] [blame] | 448 | } |
Nick Kralevich | 56fa0ac | 2013-06-24 17:41:40 -0700 | [diff] [blame] | 449 | } |
| 450 | |
Elliott Hughes | 8d82ea0 | 2015-02-06 20:15:18 -0800 | [diff] [blame] | 451 | int main(int argc, char** argv) { |
Elliott Hughes | da40c00 | 2015-03-27 23:20:44 -0700 | [diff] [blame] | 452 | if (!strcmp(basename(argv[0]), "ueventd")) { |
Colin Cross | f83d0b9 | 2010-04-21 12:04:20 -0700 | [diff] [blame] | 453 | return ueventd_main(argc, argv); |
Elliott Hughes | da40c00 | 2015-03-27 23:20:44 -0700 | [diff] [blame] | 454 | } |
Colin Cross | f83d0b9 | 2010-04-21 12:04:20 -0700 | [diff] [blame] | 455 | |
Elliott Hughes | da40c00 | 2015-03-27 23:20:44 -0700 | [diff] [blame] | 456 | if (!strcmp(basename(argv[0]), "watchdogd")) { |
Arve Hjønnevåg | d97d907 | 2012-06-13 21:51:56 -0700 | [diff] [blame] | 457 | return watchdogd_main(argc, argv); |
Elliott Hughes | da40c00 | 2015-03-27 23:20:44 -0700 | [diff] [blame] | 458 | } |
Arve Hjønnevåg | d97d907 | 2012-06-13 21:51:56 -0700 | [diff] [blame] | 459 | |
Elliott Hughes | 8d82ea0 | 2015-02-06 20:15:18 -0800 | [diff] [blame] | 460 | // Clear the umask. |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 461 | umask(0); |
| 462 | |
Elliott Hughes | cc86fb2 | 2015-03-17 20:01:13 -0700 | [diff] [blame] | 463 | add_environment("PATH", _PATH_DEFPATH); |
| 464 | |
Nick Kralevich | 9dec93b | 2015-04-25 15:50:03 -0700 | [diff] [blame] | 465 | bool is_first_stage = (argc == 1) || (strcmp(argv[1], "--second-stage") != 0); |
| 466 | |
Elliott Hughes | 8d82ea0 | 2015-02-06 20:15:18 -0800 | [diff] [blame] | 467 | // Get the basic filesystem setup we need put together in the initramdisk |
| 468 | // on / and then we'll let the rc file figure out the rest. |
Nick Kralevich | 9dec93b | 2015-04-25 15:50:03 -0700 | [diff] [blame] | 469 | if (is_first_stage) { |
Nick Kralevich | f667a32 | 2015-04-25 17:42:52 -0700 | [diff] [blame] | 470 | mount("tmpfs", "/dev", "tmpfs", MS_NOSUID, "mode=0755"); |
| 471 | mkdir("/dev/pts", 0755); |
| 472 | mkdir("/dev/socket", 0755); |
| 473 | mount("devpts", "/dev/pts", "devpts", 0, NULL); |
Nick Kralevich | c39ba5a | 2015-11-07 16:52:17 -0800 | [diff] [blame] | 474 | #define MAKE_STR(x) __STRING(x) |
| 475 | mount("proc", "/proc", "proc", 0, "hidepid=2,gid=" MAKE_STR(AID_READPROC)); |
Nick Kralevich | 9dec93b | 2015-04-25 15:50:03 -0700 | [diff] [blame] | 476 | mount("sysfs", "/sys", "sysfs", 0, NULL); |
Nick Kralevich | 3d9e273 | 2016-03-03 10:40:12 -0800 | [diff] [blame] | 477 | mount("selinuxfs", "/sys/fs/selinux", "selinuxfs", 0, NULL); |
Nick Kralevich | 9dec93b | 2015-04-25 15:50:03 -0700 | [diff] [blame] | 478 | } |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 479 | |
Elliott Hughes | 8d82ea0 | 2015-02-06 20:15:18 -0800 | [diff] [blame] | 480 | // We must have some place other than / to create the device nodes for |
| 481 | // kmsg and null, otherwise we won't be able to remount / read-only |
| 482 | // later on. Now that tmpfs is mounted on /dev, we can actually talk |
| 483 | // to the outside world. |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 484 | open_devnull_stdio(); |
Dima Zavin | 8f91282 | 2011-08-31 18:26:17 -0700 | [diff] [blame] | 485 | klog_init(); |
Elliott Hughes | da40c00 | 2015-03-27 23:20:44 -0700 | [diff] [blame] | 486 | klog_set_level(KLOG_NOTICE_LEVEL); |
| 487 | |
Elliott Hughes | e5ce30f | 2015-05-06 19:19:24 -0700 | [diff] [blame] | 488 | NOTICE("init %s started!\n", is_first_stage ? "first stage" : "second stage"); |
Elliott Hughes | da40c00 | 2015-03-27 23:20:44 -0700 | [diff] [blame] | 489 | |
Nick Kralevich | f667a32 | 2015-04-25 17:42:52 -0700 | [diff] [blame] | 490 | if (!is_first_stage) { |
| 491 | // Indicate that booting is in progress to background fw loaders, etc. |
| 492 | close(open("/dev/.booting", O_WRONLY | O_CREAT | O_CLOEXEC, 0000)); |
Vladimir Chtchetkine | 2b99543 | 2011-09-28 09:55:31 -0700 | [diff] [blame] | 493 | |
Nick Kralevich | f667a32 | 2015-04-25 17:42:52 -0700 | [diff] [blame] | 494 | property_init(); |
Dima Zavin | 5511c84 | 2011-12-19 11:21:32 -0800 | [diff] [blame] | 495 | |
Nick Kralevich | f667a32 | 2015-04-25 17:42:52 -0700 | [diff] [blame] | 496 | // If arguments are passed both on the command line and in DT, |
| 497 | // properties set in DT always have priority over the command-line ones. |
| 498 | process_kernel_dt(); |
| 499 | process_kernel_cmdline(); |
| 500 | |
Elliott Hughes | e5ce30f | 2015-05-06 19:19:24 -0700 | [diff] [blame] | 501 | // Propagate the kernel variables to internal variables |
Nick Kralevich | f667a32 | 2015-04-25 17:42:52 -0700 | [diff] [blame] | 502 | // used by init as well as the current required properties. |
| 503 | export_kernel_boot_props(); |
| 504 | } |
Rom Lemarchand | 6a52443 | 2015-02-28 06:39:11 -0800 | [diff] [blame] | 505 | |
Elliott Hughes | f65730e | 2015-04-24 18:38:17 +0000 | [diff] [blame] | 506 | // Set up SELinux, including loading the SELinux policy if we're in the kernel domain. |
| 507 | selinux_initialize(is_first_stage); |
| 508 | |
| 509 | // If we're in the kernel domain, re-exec init to transition to the init domain now |
| 510 | // that the SELinux policy has been loaded. |
| 511 | if (is_first_stage) { |
| 512 | if (restorecon("/init") == -1) { |
| 513 | ERROR("restorecon failed: %s\n", strerror(errno)); |
| 514 | security_failure(); |
| 515 | } |
| 516 | char* path = argv[0]; |
| 517 | char* args[] = { path, const_cast<char*>("--second-stage"), nullptr }; |
| 518 | if (execv(path, args) == -1) { |
| 519 | ERROR("execv(\"%s\") failed: %s\n", path, strerror(errno)); |
| 520 | security_failure(); |
| 521 | } |
| 522 | } |
Elliott Hughes | 8d82ea0 | 2015-02-06 20:15:18 -0800 | [diff] [blame] | 523 | |
| 524 | // These directories were necessarily created before initial policy load |
| 525 | // and therefore need their security context restored to the proper value. |
| 526 | // This must happen before /dev is populated by ueventd. |
Elliott Hughes | e5ce30f | 2015-05-06 19:19:24 -0700 | [diff] [blame] | 527 | NOTICE("Running restorecon...\n"); |
Stephen Smalley | e096e36 | 2012-06-11 13:37:39 -0400 | [diff] [blame] | 528 | restorecon("/dev"); |
| 529 | restorecon("/dev/socket"); |
Geremy Condra | 8e15eab | 2013-02-28 17:29:58 -0800 | [diff] [blame] | 530 | restorecon("/dev/__properties__"); |
Tom Cherry | e36a85c | 2015-11-30 16:40:25 -0800 | [diff] [blame] | 531 | restorecon("/property_contexts"); |
Nick Kralevich | ae76f6d | 2013-07-11 15:38:26 -0700 | [diff] [blame] | 532 | restorecon_recursive("/sys"); |
Stephen Smalley | e46f9d5 | 2012-01-13 08:48:47 -0500 | [diff] [blame] | 533 | |
Elliott Hughes | 929f407 | 2015-04-24 21:13:44 -0700 | [diff] [blame] | 534 | epoll_fd = epoll_create1(EPOLL_CLOEXEC); |
| 535 | if (epoll_fd == -1) { |
| 536 | ERROR("epoll_create1 failed: %s\n", strerror(errno)); |
| 537 | exit(1); |
| 538 | } |
| 539 | |
| 540 | signal_handler_init(); |
Elliott Hughes | 9042cae | 2015-04-24 17:43:21 -0700 | [diff] [blame] | 541 | |
Riley Andrews | e4b7b29 | 2014-06-16 15:06:21 -0700 | [diff] [blame] | 542 | property_load_boot_defaults(); |
Sami Tolvanen | 9e9efca | 2015-12-07 12:33:58 +0000 | [diff] [blame] | 543 | export_oem_lock_status(); |
Elliott Hughes | c6c26ed | 2015-04-24 18:50:30 -0700 | [diff] [blame] | 544 | start_property_service(); |
Dima Zavin | d7634c9 | 2011-12-16 14:18:06 -0800 | [diff] [blame] | 545 | |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 546 | const BuiltinFunctionMap function_map; |
| 547 | Action::set_function_map(&function_map); |
| 548 | |
| 549 | Parser& parser = Parser::GetInstance(); |
| 550 | parser.AddSectionParser("service",std::make_unique<ServiceParser>()); |
| 551 | parser.AddSectionParser("on", std::make_unique<ActionParser>()); |
| 552 | parser.AddSectionParser("import", std::make_unique<ImportParser>()); |
| 553 | parser.ParseConfig("/init.rc"); |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 554 | |
Tom Cherry | fa0c21c | 2015-07-23 17:53:11 -0700 | [diff] [blame] | 555 | ActionManager& am = ActionManager::GetInstance(); |
| 556 | |
| 557 | am.QueueEventTrigger("early-init"); |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 558 | |
Elliott Hughes | c6c26ed | 2015-04-24 18:50:30 -0700 | [diff] [blame] | 559 | // Queue an action that waits for coldboot done so we know ueventd has set up all of /dev... |
Tom Cherry | fa0c21c | 2015-07-23 17:53:11 -0700 | [diff] [blame] | 560 | am.QueueBuiltinAction(wait_for_coldboot_done_action, "wait_for_coldboot_done"); |
Elliott Hughes | c6c26ed | 2015-04-24 18:50:30 -0700 | [diff] [blame] | 561 | // ... so that we can start queuing up actions that require stuff from /dev. |
Tom Cherry | fa0c21c | 2015-07-23 17:53:11 -0700 | [diff] [blame] | 562 | am.QueueBuiltinAction(mix_hwrng_into_linux_rng_action, "mix_hwrng_into_linux_rng"); |
| 563 | am.QueueBuiltinAction(keychord_init_action, "keychord_init"); |
| 564 | am.QueueBuiltinAction(console_init_action, "console_init"); |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 565 | |
Elliott Hughes | da40c00 | 2015-03-27 23:20:44 -0700 | [diff] [blame] | 566 | // Trigger all the boot actions to get us started. |
Tom Cherry | fa0c21c | 2015-07-23 17:53:11 -0700 | [diff] [blame] | 567 | am.QueueEventTrigger("init"); |
Dima Zavin | ca47cef | 2011-08-24 15:28:23 -0700 | [diff] [blame] | 568 | |
Elliott Hughes | 8d82ea0 | 2015-02-06 20:15:18 -0800 | [diff] [blame] | 569 | // Repeat mix_hwrng_into_linux_rng in case /dev/hw_random or /dev/random |
| 570 | // wasn't ready immediately after wait_for_coldboot_done |
Tom Cherry | fa0c21c | 2015-07-23 17:53:11 -0700 | [diff] [blame] | 571 | am.QueueBuiltinAction(mix_hwrng_into_linux_rng_action, "mix_hwrng_into_linux_rng"); |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 572 | |
Elliott Hughes | 8d82ea0 | 2015-02-06 20:15:18 -0800 | [diff] [blame] | 573 | // Don't mount filesystems or start core system services in charger mode. |
Yabin Cui | 74edcea | 2015-07-24 10:11:05 -0700 | [diff] [blame] | 574 | std::string bootmode = property_get("ro.bootmode"); |
| 575 | if (bootmode == "charger") { |
Tom Cherry | fa0c21c | 2015-07-23 17:53:11 -0700 | [diff] [blame] | 576 | am.QueueEventTrigger("charger"); |
Dima Zavin | ca47cef | 2011-08-24 15:28:23 -0700 | [diff] [blame] | 577 | } else { |
Tom Cherry | fa0c21c | 2015-07-23 17:53:11 -0700 | [diff] [blame] | 578 | am.QueueEventTrigger("late-init"); |
Dima Zavin | ca47cef | 2011-08-24 15:28:23 -0700 | [diff] [blame] | 579 | } |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 580 | |
Elliott Hughes | 8d82ea0 | 2015-02-06 20:15:18 -0800 | [diff] [blame] | 581 | // Run all property triggers based on current state of the properties. |
Tom Cherry | fa0c21c | 2015-07-23 17:53:11 -0700 | [diff] [blame] | 582 | am.QueueBuiltinAction(queue_property_triggers_action, "queue_property_triggers"); |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 583 | |
Elliott Hughes | c6c26ed | 2015-04-24 18:50:30 -0700 | [diff] [blame] | 584 | while (true) { |
Elliott Hughes | 8d82ea0 | 2015-02-06 20:15:18 -0800 | [diff] [blame] | 585 | if (!waiting_for_exec) { |
Tom Cherry | fa0c21c | 2015-07-23 17:53:11 -0700 | [diff] [blame] | 586 | am.ExecuteOneCommand(); |
Elliott Hughes | 8d82ea0 | 2015-02-06 20:15:18 -0800 | [diff] [blame] | 587 | restart_processes(); |
| 588 | } |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 589 | |
Yongqin Liu | a197ff1 | 2014-12-05 13:45:02 +0800 | [diff] [blame] | 590 | int timeout = -1; |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 591 | if (process_needs_restart) { |
| 592 | timeout = (process_needs_restart - gettime()) * 1000; |
| 593 | if (timeout < 0) |
| 594 | timeout = 0; |
| 595 | } |
| 596 | |
Tom Cherry | fa0c21c | 2015-07-23 17:53:11 -0700 | [diff] [blame] | 597 | if (am.HasMoreCommands()) { |
Colin Cross | ebc6ff1 | 2010-04-13 19:52:01 -0700 | [diff] [blame] | 598 | timeout = 0; |
Elliott Hughes | c0e919c | 2015-02-04 14:46:36 -0800 | [diff] [blame] | 599 | } |
Colin Cross | ebc6ff1 | 2010-04-13 19:52:01 -0700 | [diff] [blame] | 600 | |
Yongqin Liu | a197ff1 | 2014-12-05 13:45:02 +0800 | [diff] [blame] | 601 | bootchart_sample(&timeout); |
Elliott Hughes | c0e919c | 2015-02-04 14:46:36 -0800 | [diff] [blame] | 602 | |
Elliott Hughes | 929f407 | 2015-04-24 21:13:44 -0700 | [diff] [blame] | 603 | epoll_event ev; |
| 604 | int nr = TEMP_FAILURE_RETRY(epoll_wait(epoll_fd, &ev, 1, timeout)); |
| 605 | if (nr == -1) { |
| 606 | ERROR("epoll_wait failed: %s\n", strerror(errno)); |
| 607 | } else if (nr == 1) { |
| 608 | ((void (*)()) ev.data.ptr)(); |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 609 | } |
The Android Open Source Project | 4f6e8d7 | 2008-10-21 07:00:00 -0700 | [diff] [blame] | 610 | } |
| 611 | |
| 612 | return 0; |
| 613 | } |