| /* |
| * Copyright (C) 2008 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 <ctype.h> |
| #include <dirent.h> |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <libgen.h> |
| #include <paths.h> |
| #include <signal.h> |
| #include <stdarg.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sys/epoll.h> |
| #include <sys/mount.h> |
| #include <sys/socket.h> |
| #include <sys/stat.h> |
| #include <sys/sysmacros.h> |
| #include <sys/types.h> |
| #include <sys/un.h> |
| #include <sys/wait.h> |
| #include <unistd.h> |
| |
| #include <selinux/selinux.h> |
| #include <selinux/label.h> |
| #include <selinux/android.h> |
| |
| #include <android-base/file.h> |
| #include <android-base/stringprintf.h> |
| #include <android-base/strings.h> |
| #include <cutils/android_reboot.h> |
| #include <cutils/fs.h> |
| #include <cutils/iosched_policy.h> |
| #include <cutils/list.h> |
| #include <cutils/sockets.h> |
| #include <private/android_filesystem_config.h> |
| |
| #include <memory> |
| |
| #include "action.h" |
| #include "bootchart.h" |
| #include "devices.h" |
| #include "fs_mgr.h" |
| #include "import_parser.h" |
| #include "init.h" |
| #include "init_parser.h" |
| #include "keychords.h" |
| #include "log.h" |
| #include "property_service.h" |
| #include "service.h" |
| #include "signal_handler.h" |
| #include "ueventd.h" |
| #include "util.h" |
| #include "watchdogd.h" |
| |
| struct selabel_handle *sehandle; |
| struct selabel_handle *sehandle_prop; |
| |
| static int property_triggers_enabled = 0; |
| |
| static char qemu[32]; |
| |
| std::string default_console = "/dev/console"; |
| static time_t process_needs_restart; |
| |
| const char *ENV[32]; |
| |
| bool waiting_for_exec = false; |
| |
| static int epoll_fd = -1; |
| |
| void register_epoll_handler(int fd, void (*fn)()) { |
| epoll_event ev; |
| ev.events = EPOLLIN; |
| ev.data.ptr = reinterpret_cast<void*>(fn); |
| if (epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fd, &ev) == -1) { |
| PLOG(ERROR) << "epoll_ctl failed"; |
| } |
| } |
| |
| /* add_environment - add "key=value" to the current environment */ |
| int add_environment(const char *key, const char *val) |
| { |
| size_t n; |
| size_t key_len = strlen(key); |
| |
| /* The last environment entry is reserved to terminate the list */ |
| for (n = 0; n < (arraysize(ENV) - 1); n++) { |
| |
| /* Delete any existing entry for this key */ |
| if (ENV[n] != NULL) { |
| size_t entry_key_len = strcspn(ENV[n], "="); |
| if ((entry_key_len == key_len) && (strncmp(ENV[n], key, entry_key_len) == 0)) { |
| free((char*)ENV[n]); |
| ENV[n] = NULL; |
| } |
| } |
| |
| /* Add entry if a free slot is available */ |
| if (ENV[n] == NULL) { |
| char* entry; |
| asprintf(&entry, "%s=%s", key, val); |
| ENV[n] = entry; |
| return 0; |
| } |
| } |
| |
| LOG(ERROR) << "No env. room to store: '" << key << "':'" << val << "'"; |
| |
| return -1; |
| } |
| |
| void property_changed(const char *name, const char *value) |
| { |
| if (property_triggers_enabled) |
| ActionManager::GetInstance().QueuePropertyTrigger(name, value); |
| } |
| |
| static void restart_processes() |
| { |
| process_needs_restart = 0; |
| ServiceManager::GetInstance(). |
| ForEachServiceWithFlags(SVC_RESTARTING, [] (Service* s) { |
| s->RestartIfNeeded(process_needs_restart); |
| }); |
| } |
| |
| void handle_control_message(const std::string& msg, const std::string& name) { |
| Service* svc = ServiceManager::GetInstance().FindServiceByName(name); |
| if (svc == nullptr) { |
| LOG(ERROR) << "no such service '" << name << "'"; |
| return; |
| } |
| |
| if (msg == "start") { |
| svc->Start(); |
| } else if (msg == "stop") { |
| svc->Stop(); |
| } else if (msg == "restart") { |
| svc->Restart(); |
| } else { |
| LOG(ERROR) << "unknown control msg '" << msg << "'"; |
| } |
| } |
| |
| static int wait_for_coldboot_done_action(const std::vector<std::string>& args) { |
| Timer t; |
| |
| LOG(VERBOSE) << "Waiting for " COLDBOOT_DONE "..."; |
| // Any longer than 1s is an unreasonable length of time to delay booting. |
| // If you're hitting this timeout, check that you didn't make your |
| // sepolicy regular expressions too expensive (http://b/19899875). |
| if (wait_for_file(COLDBOOT_DONE, 1)) { |
| LOG(ERROR) << "Timed out waiting for " COLDBOOT_DONE; |
| } |
| |
| LOG(VERBOSE) << "Waiting for " COLDBOOT_DONE " took " << t.duration() << "s."; |
| return 0; |
| } |
| |
| /* |
| * Writes 512 bytes of output from Hardware RNG (/dev/hw_random, backed |
| * by Linux kernel's hw_random framework) into Linux RNG's via /dev/urandom. |
| * Does nothing if Hardware RNG is not present. |
| * |
| * Since we don't yet trust the quality of Hardware RNG, these bytes are not |
| * mixed into the primary pool of Linux RNG and the entropy estimate is left |
| * unmodified. |
| * |
| * If the HW RNG device /dev/hw_random is present, we require that at least |
| * 512 bytes read from it are written into Linux RNG. QA is expected to catch |
| * devices/configurations where these I/O operations are blocking for a long |
| * time. We do not reboot or halt on failures, as this is a best-effort |
| * attempt. |
| */ |
| static int mix_hwrng_into_linux_rng_action(const std::vector<std::string>& args) |
| { |
| int result = -1; |
| int hwrandom_fd = -1; |
| int urandom_fd = -1; |
| char buf[512]; |
| ssize_t chunk_size; |
| size_t total_bytes_written = 0; |
| |
| hwrandom_fd = TEMP_FAILURE_RETRY( |
| open("/dev/hw_random", O_RDONLY | O_NOFOLLOW | O_CLOEXEC)); |
| if (hwrandom_fd == -1) { |
| if (errno == ENOENT) { |
| LOG(ERROR) << "/dev/hw_random not found"; |
| // It's not an error to not have a Hardware RNG. |
| result = 0; |
| } else { |
| PLOG(ERROR) << "Failed to open /dev/hw_random"; |
| } |
| goto ret; |
| } |
| |
| urandom_fd = TEMP_FAILURE_RETRY( |
| open("/dev/urandom", O_WRONLY | O_NOFOLLOW | O_CLOEXEC)); |
| if (urandom_fd == -1) { |
| PLOG(ERROR) << "Failed to open /dev/urandom"; |
| goto ret; |
| } |
| |
| while (total_bytes_written < sizeof(buf)) { |
| chunk_size = TEMP_FAILURE_RETRY( |
| read(hwrandom_fd, buf, sizeof(buf) - total_bytes_written)); |
| if (chunk_size == -1) { |
| PLOG(ERROR) << "Failed to read from /dev/hw_random"; |
| goto ret; |
| } else if (chunk_size == 0) { |
| LOG(ERROR) << "Failed to read from /dev/hw_random: EOF"; |
| goto ret; |
| } |
| |
| chunk_size = TEMP_FAILURE_RETRY(write(urandom_fd, buf, chunk_size)); |
| if (chunk_size == -1) { |
| PLOG(ERROR) << "Failed to write to /dev/urandom"; |
| goto ret; |
| } |
| total_bytes_written += chunk_size; |
| } |
| |
| LOG(INFO) << "Mixed " << total_bytes_written << " bytes from /dev/hw_random into /dev/urandom"; |
| result = 0; |
| |
| ret: |
| if (hwrandom_fd != -1) { |
| close(hwrandom_fd); |
| } |
| if (urandom_fd != -1) { |
| close(urandom_fd); |
| } |
| return result; |
| } |
| |
| static int keychord_init_action(const std::vector<std::string>& args) |
| { |
| keychord_init(); |
| return 0; |
| } |
| |
| static int console_init_action(const std::vector<std::string>& args) |
| { |
| std::string console = property_get("ro.boot.console"); |
| if (!console.empty()) { |
| default_console = "/dev/" + console; |
| } |
| return 0; |
| } |
| |
| static void import_kernel_nv(const std::string& key, const std::string& value, bool for_emulator) { |
| if (key.empty()) return; |
| |
| if (for_emulator) { |
| // In the emulator, export any kernel option with the "ro.kernel." prefix. |
| property_set(android::base::StringPrintf("ro.kernel.%s", key.c_str()).c_str(), value.c_str()); |
| return; |
| } |
| |
| if (key == "qemu") { |
| strlcpy(qemu, value.c_str(), sizeof(qemu)); |
| } else if (android::base::StartsWith(key, "androidboot.")) { |
| property_set(android::base::StringPrintf("ro.boot.%s", key.c_str() + 12).c_str(), |
| value.c_str()); |
| } |
| } |
| |
| static void export_oem_lock_status() { |
| if (property_get("ro.oem_unlock_supported") != "1") { |
| return; |
| } |
| |
| std::string value = property_get("ro.boot.verifiedbootstate"); |
| |
| if (!value.empty()) { |
| property_set("ro.boot.flash.locked", value == "orange" ? "0" : "1"); |
| } |
| } |
| |
| static void export_kernel_boot_props() { |
| struct { |
| const char *src_prop; |
| const char *dst_prop; |
| const char *default_value; |
| } prop_map[] = { |
| { "ro.boot.serialno", "ro.serialno", "", }, |
| { "ro.boot.mode", "ro.bootmode", "unknown", }, |
| { "ro.boot.baseband", "ro.baseband", "unknown", }, |
| { "ro.boot.bootloader", "ro.bootloader", "unknown", }, |
| { "ro.boot.hardware", "ro.hardware", "unknown", }, |
| { "ro.boot.revision", "ro.revision", "0", }, |
| }; |
| for (size_t i = 0; i < arraysize(prop_map); i++) { |
| std::string value = property_get(prop_map[i].src_prop); |
| property_set(prop_map[i].dst_prop, (!value.empty()) ? value.c_str() : prop_map[i].default_value); |
| } |
| } |
| |
| static void process_kernel_dt() { |
| static const char android_dir[] = "/proc/device-tree/firmware/android"; |
| |
| std::string file_name = android::base::StringPrintf("%s/compatible", android_dir); |
| |
| std::string dt_file; |
| android::base::ReadFileToString(file_name, &dt_file); |
| if (!dt_file.compare("android,firmware")) { |
| LOG(ERROR) << "firmware/android is not compatible with 'android,firmware'"; |
| return; |
| } |
| |
| std::unique_ptr<DIR, int(*)(DIR*)>dir(opendir(android_dir), closedir); |
| if (!dir) return; |
| |
| struct dirent *dp; |
| while ((dp = readdir(dir.get())) != NULL) { |
| if (dp->d_type != DT_REG || !strcmp(dp->d_name, "compatible") || !strcmp(dp->d_name, "name")) { |
| continue; |
| } |
| |
| file_name = android::base::StringPrintf("%s/%s", android_dir, dp->d_name); |
| |
| android::base::ReadFileToString(file_name, &dt_file); |
| std::replace(dt_file.begin(), dt_file.end(), ',', '.'); |
| |
| std::string property_name = android::base::StringPrintf("ro.boot.%s", dp->d_name); |
| property_set(property_name.c_str(), dt_file.c_str()); |
| } |
| } |
| |
| static void process_kernel_cmdline() { |
| // The first pass does the common stuff, and finds if we are in qemu. |
| // The second pass is only necessary for qemu to export all kernel params |
| // as properties. |
| import_kernel_cmdline(false, import_kernel_nv); |
| if (qemu[0]) import_kernel_cmdline(true, import_kernel_nv); |
| } |
| |
| static int queue_property_triggers_action(const std::vector<std::string>& args) |
| { |
| ActionManager::GetInstance().QueueAllPropertyTriggers(); |
| /* enable property triggers */ |
| property_triggers_enabled = 1; |
| return 0; |
| } |
| |
| static void selinux_init_all_handles(void) |
| { |
| sehandle = selinux_android_file_context_handle(); |
| selinux_android_set_sehandle(sehandle); |
| sehandle_prop = selinux_android_prop_context_handle(); |
| } |
| |
| enum selinux_enforcing_status { SELINUX_PERMISSIVE, SELINUX_ENFORCING }; |
| |
| static selinux_enforcing_status selinux_status_from_cmdline() { |
| selinux_enforcing_status status = SELINUX_ENFORCING; |
| |
| import_kernel_cmdline(false, [&](const std::string& key, const std::string& value, bool in_qemu) { |
| if (key == "androidboot.selinux" && value == "permissive") { |
| status = SELINUX_PERMISSIVE; |
| } |
| }); |
| |
| return status; |
| } |
| |
| static bool selinux_is_enforcing(void) |
| { |
| if (ALLOW_PERMISSIVE_SELINUX) { |
| return selinux_status_from_cmdline() == SELINUX_ENFORCING; |
| } |
| return true; |
| } |
| |
| static int audit_callback(void *data, security_class_t /*cls*/, char *buf, size_t len) { |
| |
| property_audit_data *d = reinterpret_cast<property_audit_data*>(data); |
| |
| if (!d || !d->name || !d->cr) { |
| LOG(ERROR) << "audit_callback invoked with null data arguments!"; |
| return 0; |
| } |
| |
| snprintf(buf, len, "property=%s pid=%d uid=%d gid=%d", d->name, |
| d->cr->pid, d->cr->uid, d->cr->gid); |
| return 0; |
| } |
| |
| static void security_failure() { |
| LOG(ERROR) << "Security failure; rebooting into recovery mode..."; |
| android_reboot(ANDROID_RB_RESTART2, 0, "recovery"); |
| while (true) { pause(); } // never reached |
| } |
| |
| static void selinux_initialize(bool in_kernel_domain) { |
| Timer t; |
| |
| selinux_callback cb; |
| cb.func_log = selinux_klog_callback; |
| selinux_set_callback(SELINUX_CB_LOG, cb); |
| cb.func_audit = audit_callback; |
| selinux_set_callback(SELINUX_CB_AUDIT, cb); |
| |
| if (in_kernel_domain) { |
| LOG(INFO) << "Loading SELinux policy..."; |
| if (selinux_android_load_policy() < 0) { |
| PLOG(ERROR) << "failed to load policy"; |
| security_failure(); |
| } |
| |
| bool kernel_enforcing = (security_getenforce() == 1); |
| bool is_enforcing = selinux_is_enforcing(); |
| if (kernel_enforcing != is_enforcing) { |
| if (security_setenforce(is_enforcing)) { |
| PLOG(ERROR) << "security_setenforce(%s) failed" << (is_enforcing ? "true" : "false"); |
| security_failure(); |
| } |
| } |
| |
| if (write_file("/sys/fs/selinux/checkreqprot", "0") == -1) { |
| security_failure(); |
| } |
| |
| LOG(INFO) << "(Initializing SELinux " << (is_enforcing ? "enforcing" : "non-enforcing") |
| << " took " << t.duration() << "s.)"; |
| } else { |
| selinux_init_all_handles(); |
| } |
| } |
| |
| // Set the UDC controller for the ConfigFS USB Gadgets. |
| // Read the UDC controller in use from "/sys/class/udc". |
| // In case of multiple UDC controllers select the first one. |
| static void set_usb_controller() { |
| std::unique_ptr<DIR, decltype(&closedir)>dir(opendir("/sys/class/udc"), closedir); |
| if (!dir) return; |
| |
| dirent* dp; |
| while ((dp = readdir(dir.get())) != nullptr) { |
| if (dp->d_name[0] == '.') continue; |
| |
| property_set("sys.usb.controller", dp->d_name); |
| break; |
| } |
| } |
| |
| /* Returns a new path consisting of base_path and the file name in reference_path. */ |
| static std::string get_path(const std::string& base_path, const std::string& reference_path) { |
| std::string::size_type pos = reference_path.rfind('/'); |
| if (pos == std::string::npos) { |
| return base_path + '/' + reference_path; |
| } else { |
| return base_path + reference_path.substr(pos); |
| } |
| } |
| |
| /* Imports the fstab info from cmdline. */ |
| static std::string import_cmdline_fstab() { |
| std::string prefix, fstab, fstab_full; |
| |
| import_kernel_cmdline(false, |
| [&](const std::string& key, const std::string& value, bool in_qemu __attribute__((__unused__))) { |
| if (key == "android.early.prefix") { |
| prefix = value; |
| } else if (key == "android.early.fstab") { |
| fstab = value; |
| } |
| }); |
| if (!fstab.empty()) { |
| // Convert "mmcblk0p09+/odm+ext4+ro+verify" to "mmcblk0p09 /odm ext4 ro verify" |
| std::replace(fstab.begin(), fstab.end(), '+', ' '); |
| for (const auto& entry : android::base::Split(fstab, "\n")) { |
| fstab_full += prefix + entry + '\n'; |
| } |
| } |
| return fstab_full; |
| } |
| |
| /* Early mount vendor and ODM partitions. The fstab info is read from kernel cmdline. */ |
| static void early_mount() { |
| std::string fstab_string = import_cmdline_fstab(); |
| if (fstab_string.empty()) { |
| LOG(INFO) << "Failed to load vendor fstab from kernel cmdline"; |
| return; |
| } |
| FILE *fstab_file = fmemopen((void *)fstab_string.c_str(), fstab_string.length(), "r"); |
| if (!fstab_file) { |
| PLOG(ERROR) << "Failed to open fstab string as FILE"; |
| return; |
| } |
| std::unique_ptr<struct fstab, decltype(&fs_mgr_free_fstab)> fstab(fs_mgr_read_fstab_file(fstab_file), fs_mgr_free_fstab); |
| fclose(fstab_file); |
| if (!fstab) { |
| LOG(ERROR) << "Failed to parse fstab string: " << fstab_string; |
| return; |
| } |
| LOG(INFO) << "Loaded vendor fstab from cmdline"; |
| |
| if (early_device_socket_open()) { |
| LOG(ERROR) << "Failed to open device uevent socket"; |
| return; |
| } |
| |
| /* Create /dev/device-mapper for dm-verity */ |
| early_create_dev("/sys/devices/virtual/misc/device-mapper", EARLY_CHAR_DEV); |
| |
| for (int i = 0; i < fstab->num_entries; ++i) { |
| struct fstab_rec *rec = &fstab->recs[i]; |
| std::string mount_point = rec->mount_point; |
| std::string syspath = rec->blk_device; |
| |
| if (mount_point != "/vendor" && mount_point != "/odm") |
| continue; |
| |
| /* Create mount target under /dev/block/ from sysfs via uevent */ |
| LOG(INFO) << "Mounting " << mount_point << " from " << syspath << "..."; |
| char *devpath = strdup(get_path("/dev/block", syspath).c_str()); |
| if (!devpath) { |
| PLOG(ERROR) << "Failed to strdup dev path in early mount " << syspath; |
| continue; |
| } |
| rec->blk_device = devpath; |
| early_create_dev(syspath, EARLY_BLOCK_DEV); |
| |
| int rc = fs_mgr_early_setup_verity(rec); |
| if (rc == FS_MGR_EARLY_SETUP_VERITY_SUCCESS) { |
| /* Mount target is changed to /dev/block/dm-<n>; initiate its creation from sysfs counterpart */ |
| early_create_dev(get_path("/sys/devices/virtual/block", rec->blk_device), EARLY_BLOCK_DEV); |
| } else if (rc == FS_MGR_EARLY_SETUP_VERITY_FAIL) { |
| LOG(ERROR) << "Failed to set up dm-verity on " << rec->blk_device; |
| continue; |
| } else { /* FS_MGR_EARLY_SETUP_VERITY_NO_VERITY */ |
| LOG(INFO) << "dm-verity disabled on debuggable device; mount directly on " << rec->blk_device; |
| } |
| |
| mkdir(mount_point.c_str(), 0755); |
| rc = mount(rec->blk_device, mount_point.c_str(), rec->fs_type, rec->flags, rec->fs_options); |
| if (rc) { |
| PLOG(ERROR) << "Failed to mount on " << rec->blk_device; |
| } |
| } |
| early_device_socket_close(); |
| } |
| |
| int main(int argc, char** argv) { |
| if (!strcmp(basename(argv[0]), "ueventd")) { |
| return ueventd_main(argc, argv); |
| } |
| |
| if (!strcmp(basename(argv[0]), "watchdogd")) { |
| return watchdogd_main(argc, argv); |
| } |
| |
| // Clear the umask. |
| umask(0); |
| |
| add_environment("PATH", _PATH_DEFPATH); |
| |
| bool is_first_stage = (argc == 1) || (strcmp(argv[1], "--second-stage") != 0); |
| |
| // Don't expose the raw commandline to unprivileged processes. |
| chmod("/proc/cmdline", 0440); |
| |
| // Get the basic filesystem setup we need put together in the initramdisk |
| // on / and then we'll let the rc file figure out the rest. |
| if (is_first_stage) { |
| mount("tmpfs", "/dev", "tmpfs", MS_NOSUID, "mode=0755"); |
| mkdir("/dev/pts", 0755); |
| mkdir("/dev/socket", 0755); |
| mount("devpts", "/dev/pts", "devpts", 0, NULL); |
| #define MAKE_STR(x) __STRING(x) |
| mount("proc", "/proc", "proc", 0, "hidepid=2,gid=" MAKE_STR(AID_READPROC)); |
| mount("sysfs", "/sys", "sysfs", 0, NULL); |
| mount("selinuxfs", "/sys/fs/selinux", "selinuxfs", 0, NULL); |
| mknod("/dev/kmsg", S_IFCHR | 0600, makedev(1, 11)); |
| early_mount(); |
| } |
| |
| // Now that tmpfs is mounted on /dev and we have /dev/kmsg, we can actually |
| // talk to the outside world... |
| InitKernelLogging(argv); |
| |
| LOG(INFO) << "init " << (is_first_stage ? "first stage" : "second stage") << " started!"; |
| |
| if (!is_first_stage) { |
| // Indicate that booting is in progress to background fw loaders, etc. |
| close(open("/dev/.booting", O_WRONLY | O_CREAT | O_CLOEXEC, 0000)); |
| |
| property_init(); |
| |
| // If arguments are passed both on the command line and in DT, |
| // properties set in DT always have priority over the command-line ones. |
| process_kernel_dt(); |
| process_kernel_cmdline(); |
| |
| // Propagate the kernel variables to internal variables |
| // used by init as well as the current required properties. |
| export_kernel_boot_props(); |
| } |
| |
| // Set up SELinux, including loading the SELinux policy if we're in the kernel domain. |
| selinux_initialize(is_first_stage); |
| |
| // If we're in the kernel domain, re-exec init to transition to the init domain now |
| // that the SELinux policy has been loaded. |
| if (is_first_stage) { |
| if (restorecon("/init") == -1) { |
| PLOG(ERROR) << "restorecon failed"; |
| security_failure(); |
| } |
| char* path = argv[0]; |
| char* args[] = { path, const_cast<char*>("--second-stage"), nullptr }; |
| if (execv(path, args) == -1) { |
| PLOG(ERROR) << "execv(\"" << path << "\") failed"; |
| security_failure(); |
| } |
| } |
| |
| // These directories were necessarily created before initial policy load |
| // and therefore need their security context restored to the proper value. |
| // This must happen before /dev is populated by ueventd. |
| LOG(INFO) << "Running restorecon..."; |
| restorecon("/dev"); |
| restorecon("/dev/kmsg"); |
| restorecon("/dev/socket"); |
| restorecon("/dev/__properties__"); |
| restorecon("/property_contexts"); |
| restorecon_recursive("/sys"); |
| restorecon_recursive("/dev/block"); |
| restorecon("/dev/device-mapper"); |
| |
| epoll_fd = epoll_create1(EPOLL_CLOEXEC); |
| if (epoll_fd == -1) { |
| PLOG(ERROR) << "epoll_create1 failed"; |
| exit(1); |
| } |
| |
| signal_handler_init(); |
| |
| property_load_boot_defaults(); |
| export_oem_lock_status(); |
| start_property_service(); |
| set_usb_controller(); |
| |
| const BuiltinFunctionMap function_map; |
| Action::set_function_map(&function_map); |
| |
| Parser& parser = Parser::GetInstance(); |
| parser.AddSectionParser("service",std::make_unique<ServiceParser>()); |
| parser.AddSectionParser("on", std::make_unique<ActionParser>()); |
| parser.AddSectionParser("import", std::make_unique<ImportParser>()); |
| parser.ParseConfig("/init.rc"); |
| |
| ActionManager& am = ActionManager::GetInstance(); |
| |
| am.QueueEventTrigger("early-init"); |
| |
| // Queue an action that waits for coldboot done so we know ueventd has set up all of /dev... |
| am.QueueBuiltinAction(wait_for_coldboot_done_action, "wait_for_coldboot_done"); |
| // ... so that we can start queuing up actions that require stuff from /dev. |
| am.QueueBuiltinAction(mix_hwrng_into_linux_rng_action, "mix_hwrng_into_linux_rng"); |
| am.QueueBuiltinAction(keychord_init_action, "keychord_init"); |
| am.QueueBuiltinAction(console_init_action, "console_init"); |
| |
| // Trigger all the boot actions to get us started. |
| am.QueueEventTrigger("init"); |
| |
| // Repeat mix_hwrng_into_linux_rng in case /dev/hw_random or /dev/random |
| // wasn't ready immediately after wait_for_coldboot_done |
| am.QueueBuiltinAction(mix_hwrng_into_linux_rng_action, "mix_hwrng_into_linux_rng"); |
| |
| // Don't mount filesystems or start core system services in charger mode. |
| std::string bootmode = property_get("ro.bootmode"); |
| if (bootmode == "charger") { |
| am.QueueEventTrigger("charger"); |
| } else { |
| am.QueueEventTrigger("late-init"); |
| } |
| |
| // Run all property triggers based on current state of the properties. |
| am.QueueBuiltinAction(queue_property_triggers_action, "queue_property_triggers"); |
| |
| while (true) { |
| if (!waiting_for_exec) { |
| am.ExecuteOneCommand(); |
| restart_processes(); |
| } |
| |
| int timeout = -1; |
| if (process_needs_restart) { |
| timeout = (process_needs_restart - gettime()) * 1000; |
| if (timeout < 0) |
| timeout = 0; |
| } |
| |
| if (am.HasMoreCommands()) { |
| timeout = 0; |
| } |
| |
| bootchart_sample(&timeout); |
| |
| epoll_event ev; |
| int nr = TEMP_FAILURE_RETRY(epoll_wait(epoll_fd, &ev, 1, timeout)); |
| if (nr == -1) { |
| PLOG(ERROR) << "epoll_wait failed"; |
| } else if (nr == 1) { |
| ((void (*)()) ev.data.ptr)(); |
| } |
| } |
| |
| return 0; |
| } |