init.c revision 64092e852d0879d07ded15c429473c45da389454
1aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis/* 2aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis * Copyright (C) 2008 The Android Open Source Project 3aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis * 4aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis * Licensed under the Apache License, Version 2.0 (the "License"); 5aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis * you may not use this file except in compliance with the License. 6aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis * You may obtain a copy of the License at 7aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis * 8aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis * http://www.apache.org/licenses/LICENSE-2.0 9aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis * 10aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis * Unless required by applicable law or agreed to in writing, software 11aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis * distributed under the License is distributed on an "AS IS" BASIS, 12aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis * See the License for the specific language governing permissions and 14aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis * limitations under the License. 15aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis */ 16aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis 17aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis#include <stdio.h> 18aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis#include <stdlib.h> 19aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis#include <string.h> 20aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis#include <unistd.h> 21aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis#include <fcntl.h> 2298c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis#include <ctype.h> 2398c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis#include <signal.h> 2498c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis#include <sys/wait.h> 2598c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis#include <sys/mount.h> 2698c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis#include <sys/stat.h> 2798c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis#include <sys/poll.h> 2889c1d61c16c786ecfd258a43fed24bcf8f8456edJamie Gennis#include <errno.h> 2989c1d61c16c786ecfd258a43fed24bcf8f8456edJamie Gennis#include <stdarg.h> 3089c1d61c16c786ecfd258a43fed24bcf8f8456edJamie Gennis#include <mtd/mtd-user.h> 3189c1d61c16c786ecfd258a43fed24bcf8f8456edJamie Gennis#include <sys/types.h> 32f478e6d18cb9eba1ded1f124ce16a899d271689eJamie Gennis#include <sys/socket.h> 33f478e6d18cb9eba1ded1f124ce16a899d271689eJamie Gennis#include <sys/un.h> 34f478e6d18cb9eba1ded1f124ce16a899d271689eJamie Gennis#include <libgen.h> 35f478e6d18cb9eba1ded1f124ce16a899d271689eJamie Gennis 3689c1d61c16c786ecfd258a43fed24bcf8f8456edJamie Gennis#include <cutils/sockets.h> 3789c1d61c16c786ecfd258a43fed24bcf8f8456edJamie Gennis#include <cutils/iosched_policy.h> 3889c1d61c16c786ecfd258a43fed24bcf8f8456edJamie Gennis#include <private/android_filesystem_config.h> 3989c1d61c16c786ecfd258a43fed24bcf8f8456edJamie Gennis#include <termios.h> 40766010858ea7696d64f1b559413670bdd8627595Jamie Gennis 41f478e6d18cb9eba1ded1f124ce16a899d271689eJamie Gennis#include <sys/system_properties.h> 4289c1d61c16c786ecfd258a43fed24bcf8f8456edJamie Gennis 4389c1d61c16c786ecfd258a43fed24bcf8f8456edJamie Gennis#include "devices.h" 44766010858ea7696d64f1b559413670bdd8627595Jamie Gennis#include "init.h" 4598c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis#include "list.h" 4698c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis#include "log.h" 4798c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis#include "property_service.h" 4898c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis#include "bootchart.h" 4999c3d700d2d0886fe27fa961c89dae7c6c3b8195Jamie Gennis#include "signal_handler.h" 5099c3d700d2d0886fe27fa961c89dae7c6c3b8195Jamie Gennis#include "keychords.h" 5199c3d700d2d0886fe27fa961c89dae7c6c3b8195Jamie Gennis#include "init_parser.h" 52aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis#include "util.h" 53aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis#include "ueventd.h" 54aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis 55aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennisstatic int property_triggers_enabled = 0; 56aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis 57aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis#if BOOTCHART 58aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennisstatic int bootchart_count; 59766010858ea7696d64f1b559413670bdd8627595Jamie Gennis#endif 60aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis 61c42fcf05ce253d5342993b28c412be16e61efffbJamie Gennisstatic char console[32]; 62c42fcf05ce253d5342993b28c412be16e61efffbJamie Gennisstatic char serialno[32]; 63766010858ea7696d64f1b559413670bdd8627595Jamie Gennisstatic char bootmode[32]; 64766010858ea7696d64f1b559413670bdd8627595Jamie Gennisstatic char baseband[32]; 65aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennisstatic char carrier[32]; 66c42fcf05ce253d5342993b28c412be16e61efffbJamie Gennisstatic char bootloader[32]; 67c42fcf05ce253d5342993b28c412be16e61efffbJamie Gennisstatic char hardware[32]; 68766010858ea7696d64f1b559413670bdd8627595Jamie Gennisstatic unsigned revision = 0; 69766010858ea7696d64f1b559413670bdd8627595Jamie Gennisstatic char qemu[32]; 70aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis 71aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennisstatic struct action *cur_action = NULL; 72aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennisstatic struct command *cur_command = NULL; 73aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennisstatic struct listnode *command_queue = NULL; 74766010858ea7696d64f1b559413670bdd8627595Jamie Gennis 75766010858ea7696d64f1b559413670bdd8627595Jamie Gennisvoid notify_service_state(const char *name, const char *state) 76766010858ea7696d64f1b559413670bdd8627595Jamie Gennis{ 77aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis char pname[PROP_NAME_MAX]; 78aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis int len = strlen(name); 79766010858ea7696d64f1b559413670bdd8627595Jamie Gennis if ((len + 10) > PROP_NAME_MAX) 80aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis return; 81aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis snprintf(pname, sizeof(pname), "init.svc.%s", name); 8298c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis property_set(pname, state); 8398c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis} 84aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis 8598c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennisstatic int have_console; 86aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennisstatic char *console_name = "/dev/console"; 87aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennisstatic time_t process_needs_restart; 88aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis 89766010858ea7696d64f1b559413670bdd8627595Jamie Gennisstatic const char *ENV[32]; 90ada798b7ca7cabc255aa159964b64975e7fdb2dfMathias Agopian 91ada798b7ca7cabc255aa159964b64975e7fdb2dfMathias Agopian/* add_environment - add "key=value" to the current environment */ 92ada798b7ca7cabc255aa159964b64975e7fdb2dfMathias Agopianint add_environment(const char *key, const char *val) 93ada798b7ca7cabc255aa159964b64975e7fdb2dfMathias Agopian{ 94ada798b7ca7cabc255aa159964b64975e7fdb2dfMathias Agopian int n; 95ada798b7ca7cabc255aa159964b64975e7fdb2dfMathias Agopian 96ada798b7ca7cabc255aa159964b64975e7fdb2dfMathias Agopian for (n = 0; n < 31; n++) { 97ada798b7ca7cabc255aa159964b64975e7fdb2dfMathias Agopian if (!ENV[n]) { 98ada798b7ca7cabc255aa159964b64975e7fdb2dfMathias Agopian size_t len = strlen(key) + strlen(val) + 2; 99ada798b7ca7cabc255aa159964b64975e7fdb2dfMathias Agopian char *entry = malloc(len); 100ada798b7ca7cabc255aa159964b64975e7fdb2dfMathias Agopian snprintf(entry, len, "%s=%s", key, val); 101ada798b7ca7cabc255aa159964b64975e7fdb2dfMathias Agopian ENV[n] = entry; 102ada798b7ca7cabc255aa159964b64975e7fdb2dfMathias Agopian return 0; 103ada798b7ca7cabc255aa159964b64975e7fdb2dfMathias Agopian } 104ada798b7ca7cabc255aa159964b64975e7fdb2dfMathias Agopian } 105c42fcf05ce253d5342993b28c412be16e61efffbJamie Gennis 106c42fcf05ce253d5342993b28c412be16e61efffbJamie Gennis return 1; 107ada798b7ca7cabc255aa159964b64975e7fdb2dfMathias Agopian} 108ada798b7ca7cabc255aa159964b64975e7fdb2dfMathias Agopian 109ada798b7ca7cabc255aa159964b64975e7fdb2dfMathias Agopianstatic void zap_stdio(void) 110ada798b7ca7cabc255aa159964b64975e7fdb2dfMathias Agopian{ 111ada798b7ca7cabc255aa159964b64975e7fdb2dfMathias Agopian int fd; 112ada798b7ca7cabc255aa159964b64975e7fdb2dfMathias Agopian fd = open("/dev/null", O_RDWR); 113ada798b7ca7cabc255aa159964b64975e7fdb2dfMathias Agopian dup2(fd, 0); 114ada798b7ca7cabc255aa159964b64975e7fdb2dfMathias Agopian dup2(fd, 1); 115ada798b7ca7cabc255aa159964b64975e7fdb2dfMathias Agopian dup2(fd, 2); 116ada798b7ca7cabc255aa159964b64975e7fdb2dfMathias Agopian close(fd); 117ada798b7ca7cabc255aa159964b64975e7fdb2dfMathias Agopian} 118ada798b7ca7cabc255aa159964b64975e7fdb2dfMathias Agopian 119aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennisstatic void open_console() 120aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis{ 121aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis int fd; 122ada798b7ca7cabc255aa159964b64975e7fdb2dfMathias Agopian if ((fd = open(console_name, O_RDWR)) < 0) { 123766010858ea7696d64f1b559413670bdd8627595Jamie Gennis fd = open("/dev/null", O_RDWR); 124766010858ea7696d64f1b559413670bdd8627595Jamie Gennis } 125766010858ea7696d64f1b559413670bdd8627595Jamie Gennis dup2(fd, 0); 126766010858ea7696d64f1b559413670bdd8627595Jamie Gennis dup2(fd, 1); 127766010858ea7696d64f1b559413670bdd8627595Jamie Gennis dup2(fd, 2); 128766010858ea7696d64f1b559413670bdd8627595Jamie Gennis close(fd); 129766010858ea7696d64f1b559413670bdd8627595Jamie Gennis} 130766010858ea7696d64f1b559413670bdd8627595Jamie Gennis 131766010858ea7696d64f1b559413670bdd8627595Jamie Gennisstatic void publish_socket(const char *name, int fd) 132766010858ea7696d64f1b559413670bdd8627595Jamie Gennis{ 133766010858ea7696d64f1b559413670bdd8627595Jamie Gennis char key[64] = ANDROID_SOCKET_ENV_PREFIX; 134766010858ea7696d64f1b559413670bdd8627595Jamie Gennis char val[64]; 135c42fcf05ce253d5342993b28c412be16e61efffbJamie Gennis 136c42fcf05ce253d5342993b28c412be16e61efffbJamie Gennis strlcpy(key + sizeof(ANDROID_SOCKET_ENV_PREFIX) - 1, 137766010858ea7696d64f1b559413670bdd8627595Jamie Gennis name, 138766010858ea7696d64f1b559413670bdd8627595Jamie Gennis sizeof(key) - sizeof(ANDROID_SOCKET_ENV_PREFIX)); 139766010858ea7696d64f1b559413670bdd8627595Jamie Gennis snprintf(val, sizeof(val), "%d", fd); 14032397c1cd3327905173b36baa6fd1c579bc328ffSteve Block add_environment(key, val); 141766010858ea7696d64f1b559413670bdd8627595Jamie Gennis 142766010858ea7696d64f1b559413670bdd8627595Jamie Gennis /* make sure we don't close-on-exec */ 143766010858ea7696d64f1b559413670bdd8627595Jamie Gennis fcntl(fd, F_SETFD, 0); 144766010858ea7696d64f1b559413670bdd8627595Jamie Gennis} 145766010858ea7696d64f1b559413670bdd8627595Jamie Gennis 146766010858ea7696d64f1b559413670bdd8627595Jamie Gennisvoid service_start(struct service *svc, const char *dynamic_args) 14799c3d700d2d0886fe27fa961c89dae7c6c3b8195Jamie Gennis{ 14899c3d700d2d0886fe27fa961c89dae7c6c3b8195Jamie Gennis struct stat s; 14999c3d700d2d0886fe27fa961c89dae7c6c3b8195Jamie Gennis pid_t pid; 15099c3d700d2d0886fe27fa961c89dae7c6c3b8195Jamie Gennis int needs_console; 15199c3d700d2d0886fe27fa961c89dae7c6c3b8195Jamie Gennis int n; 15299c3d700d2d0886fe27fa961c89dae7c6c3b8195Jamie Gennis 15399c3d700d2d0886fe27fa961c89dae7c6c3b8195Jamie Gennis /* starting a service removes it from the disabled 15499c3d700d2d0886fe27fa961c89dae7c6c3b8195Jamie Gennis * state and immediately takes it out of the restarting 15599c3d700d2d0886fe27fa961c89dae7c6c3b8195Jamie Gennis * state if it was in there 15699c3d700d2d0886fe27fa961c89dae7c6c3b8195Jamie Gennis */ 15799c3d700d2d0886fe27fa961c89dae7c6c3b8195Jamie Gennis svc->flags &= (~(SVC_DISABLED|SVC_RESTARTING)); 15899c3d700d2d0886fe27fa961c89dae7c6c3b8195Jamie Gennis svc->time_started = 0; 15999c3d700d2d0886fe27fa961c89dae7c6c3b8195Jamie Gennis 16099c3d700d2d0886fe27fa961c89dae7c6c3b8195Jamie Gennis /* running processes require no additional work -- if 16199c3d700d2d0886fe27fa961c89dae7c6c3b8195Jamie Gennis * they're in the process of exiting, we've ensured 16299c3d700d2d0886fe27fa961c89dae7c6c3b8195Jamie Gennis * that they will immediately restart on exit, unless 16399c3d700d2d0886fe27fa961c89dae7c6c3b8195Jamie Gennis * they are ONESHOT 16499c3d700d2d0886fe27fa961c89dae7c6c3b8195Jamie Gennis */ 16599c3d700d2d0886fe27fa961c89dae7c6c3b8195Jamie Gennis if (svc->flags & SVC_RUNNING) { 16699c3d700d2d0886fe27fa961c89dae7c6c3b8195Jamie Gennis return; 16799c3d700d2d0886fe27fa961c89dae7c6c3b8195Jamie Gennis } 16899c3d700d2d0886fe27fa961c89dae7c6c3b8195Jamie Gennis 16999c3d700d2d0886fe27fa961c89dae7c6c3b8195Jamie Gennis needs_console = (svc->flags & SVC_CONSOLE) ? 1 : 0; 17099c3d700d2d0886fe27fa961c89dae7c6c3b8195Jamie Gennis if (needs_console && (!have_console)) { 171766010858ea7696d64f1b559413670bdd8627595Jamie Gennis ERROR("service '%s' requires console\n", svc->name); 172766010858ea7696d64f1b559413670bdd8627595Jamie Gennis svc->flags |= SVC_DISABLED; 173766010858ea7696d64f1b559413670bdd8627595Jamie Gennis return; 174c42fcf05ce253d5342993b28c412be16e61efffbJamie Gennis } 175c42fcf05ce253d5342993b28c412be16e61efffbJamie Gennis 176766010858ea7696d64f1b559413670bdd8627595Jamie Gennis if (stat(svc->args[0], &s) != 0) { 177766010858ea7696d64f1b559413670bdd8627595Jamie Gennis ERROR("cannot find '%s', disabling '%s'\n", svc->args[0], svc->name); 178766010858ea7696d64f1b559413670bdd8627595Jamie Gennis svc->flags |= SVC_DISABLED; 17932397c1cd3327905173b36baa6fd1c579bc328ffSteve Block return; 180766010858ea7696d64f1b559413670bdd8627595Jamie Gennis } 181766010858ea7696d64f1b559413670bdd8627595Jamie Gennis 182766010858ea7696d64f1b559413670bdd8627595Jamie Gennis if ((!(svc->flags & SVC_ONESHOT)) && dynamic_args) { 183766010858ea7696d64f1b559413670bdd8627595Jamie Gennis ERROR("service '%s' must be one-shot to use dynamic args, disabling\n", 184766010858ea7696d64f1b559413670bdd8627595Jamie Gennis svc->args[0]); 185766010858ea7696d64f1b559413670bdd8627595Jamie Gennis svc->flags |= SVC_DISABLED; 186766010858ea7696d64f1b559413670bdd8627595Jamie Gennis return; 187766010858ea7696d64f1b559413670bdd8627595Jamie Gennis } 188766010858ea7696d64f1b559413670bdd8627595Jamie Gennis 189766010858ea7696d64f1b559413670bdd8627595Jamie Gennis NOTICE("starting '%s'\n", svc->name); 19098c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis 19198c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis pid = fork(); 19298c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis 19398c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis if (pid == 0) { 19498c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis struct socketinfo *si; 195766010858ea7696d64f1b559413670bdd8627595Jamie Gennis struct svcenvinfo *ei; 196766010858ea7696d64f1b559413670bdd8627595Jamie Gennis char tmp[32]; 197766010858ea7696d64f1b559413670bdd8627595Jamie Gennis int fd, sz; 198766010858ea7696d64f1b559413670bdd8627595Jamie Gennis 199766010858ea7696d64f1b559413670bdd8627595Jamie Gennis if (properties_inited()) { 200766010858ea7696d64f1b559413670bdd8627595Jamie Gennis get_property_workspace(&fd, &sz); 201766010858ea7696d64f1b559413670bdd8627595Jamie Gennis sprintf(tmp, "%d,%d", dup(fd), sz); 202766010858ea7696d64f1b559413670bdd8627595Jamie Gennis add_environment("ANDROID_PROPERTY_WORKSPACE", tmp); 20398c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis } 20498c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis 20598c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis for (ei = svc->envvars; ei; ei = ei->next) 20698c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis add_environment(ei->name, ei->value); 20798c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis 20898c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis for (si = svc->sockets; si; si = si->next) { 20998c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis int socket_type = ( 21098c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis !strcmp(si->type, "stream") ? SOCK_STREAM : 21198c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis (!strcmp(si->type, "dgram") ? SOCK_DGRAM : SOCK_SEQPACKET)); 21298c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis int s = create_socket(si->name, socket_type, 21398c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis si->perm, si->uid, si->gid); 21498c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis if (s >= 0) { 21598c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis publish_socket(si->name, s); 21698c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis } 21798c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis } 21898c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis 219766010858ea7696d64f1b559413670bdd8627595Jamie Gennis if (svc->ioprio_class != IoSchedClass_NONE) { 22098c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis if (android_set_ioprio(getpid(), svc->ioprio_class, svc->ioprio_pri)) { 22198c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis ERROR("Failed to set pid %d ioprio = %d,%d: %s\n", 22298c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis getpid(), svc->ioprio_class, svc->ioprio_pri, strerror(errno)); 22398c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis } 22498c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis } 22598c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis 22698c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis if (needs_console) { 22798c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis setsid(); 22898c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis open_console(); 22998c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis } else { 23098c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis zap_stdio(); 23198c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis } 23298c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis 233e6f43ddce78d6846af12550ff9193c5c6fe5844bSteve Block#if 0 23498c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis for (n = 0; svc->args[n]; n++) { 23598c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis INFO("args[%d] = '%s'\n", n, svc->args[n]); 23698c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis } 23798c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis for (n = 0; ENV[n]; n++) { 23898c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis INFO("env[%d] = '%s'\n", n, ENV[n]); 23998c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis } 24098c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis#endif 241e6f43ddce78d6846af12550ff9193c5c6fe5844bSteve Block 24298c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis setpgid(0, getpid()); 24398c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis 24498c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis /* as requested, set our gid, supplemental gids, and uid */ 24598c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis if (svc->gid) { 24698c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis setgid(svc->gid); 24798c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis } 24898c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis if (svc->nr_supp_gids) { 249a30cc7db8dba9f028333a8e1865006bf6d4f410dvijay gupta setgroups(svc->nr_supp_gids, svc->supp_gids); 250a30cc7db8dba9f028333a8e1865006bf6d4f410dvijay gupta } 251a30cc7db8dba9f028333a8e1865006bf6d4f410dvijay gupta if (svc->uid) { 252a30cc7db8dba9f028333a8e1865006bf6d4f410dvijay gupta setuid(svc->uid); 25398c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis } 25498c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis 25598c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis if (!dynamic_args) { 25698c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis if (execve(svc->args[0], (char**) svc->args, (char**) ENV) < 0) { 25798c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis ERROR("cannot execve('%s'): %s\n", svc->args[0], strerror(errno)); 25898c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis } 25998c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis } else { 26098c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis char *arg_ptrs[INIT_PARSER_MAXARGS+1]; 261e6f43ddce78d6846af12550ff9193c5c6fe5844bSteve Block int arg_idx = svc->nargs; 26298c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis char *tmp = strdup(dynamic_args); 263a30cc7db8dba9f028333a8e1865006bf6d4f410dvijay gupta char *next = tmp; 26498c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis char *bword; 26598c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis 26698c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis /* Copy the static arguments */ 26798c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis memcpy(arg_ptrs, svc->args, (svc->nargs * sizeof(char *))); 26898c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis 26998c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis while((bword = strsep(&next, " "))) { 27098c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis arg_ptrs[arg_idx++] = bword; 27198c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis if (arg_idx == INIT_PARSER_MAXARGS) 27298c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis break; 27398c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis } 274a30cc7db8dba9f028333a8e1865006bf6d4f410dvijay gupta arg_ptrs[arg_idx] = '\0'; 275a30cc7db8dba9f028333a8e1865006bf6d4f410dvijay gupta execve(svc->args[0], (char**) arg_ptrs, (char**) ENV); 276a30cc7db8dba9f028333a8e1865006bf6d4f410dvijay gupta } 277a30cc7db8dba9f028333a8e1865006bf6d4f410dvijay gupta _exit(127); 278a30cc7db8dba9f028333a8e1865006bf6d4f410dvijay gupta } 279a30cc7db8dba9f028333a8e1865006bf6d4f410dvijay gupta 280a30cc7db8dba9f028333a8e1865006bf6d4f410dvijay gupta if (pid < 0) { 281a30cc7db8dba9f028333a8e1865006bf6d4f410dvijay gupta ERROR("failed to start '%s'\n", svc->name); 282a30cc7db8dba9f028333a8e1865006bf6d4f410dvijay gupta svc->pid = 0; 283a30cc7db8dba9f028333a8e1865006bf6d4f410dvijay gupta return; 28498c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis } 28598c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis 28698c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis svc->time_started = gettime(); 287766010858ea7696d64f1b559413670bdd8627595Jamie Gennis svc->pid = pid; 288766010858ea7696d64f1b559413670bdd8627595Jamie Gennis svc->flags |= SVC_RUNNING; 289766010858ea7696d64f1b559413670bdd8627595Jamie Gennis 29098c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis if (properties_inited()) 29198c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis notify_service_state(svc->name, "running"); 29298c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis} 29398c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis 29498c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennisvoid service_stop(struct service *svc) 29598c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis{ 296e6f43ddce78d6846af12550ff9193c5c6fe5844bSteve Block /* we are no longer running, nor should we 29798c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis * attempt to restart 29898c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis */ 29998c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis svc->flags &= (~(SVC_RUNNING|SVC_RESTARTING)); 30098c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis 30198c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis /* if the service has not yet started, prevent 30298c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis * it from auto-starting with its class 30398c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis */ 304e6f43ddce78d6846af12550ff9193c5c6fe5844bSteve Block svc->flags |= SVC_DISABLED; 30598c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis 30698c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis if (svc->pid) { 30798c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis NOTICE("service '%s' is being killed\n", svc->name); 30898c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis kill(-svc->pid, SIGTERM); 30998c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis notify_service_state(svc->name, "stopping"); 31098c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis } else { 31198c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis notify_service_state(svc->name, "stopped"); 312e6f43ddce78d6846af12550ff9193c5c6fe5844bSteve Block } 31398c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis} 31498c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis 31598c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennisvoid property_changed(const char *name, const char *value) 31698c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis{ 31798c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis if (property_triggers_enabled) 31898c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis queue_property_triggers(name, value); 31998c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis} 320e6f43ddce78d6846af12550ff9193c5c6fe5844bSteve Block 32198c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennisstatic void restart_service_if_needed(struct service *svc) 32298c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis{ 32398c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis time_t next_start_time = svc->time_started + 5; 32498c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis 32598c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis if (next_start_time <= gettime()) { 32698c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis svc->flags &= (~SVC_RESTARTING); 32798c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis service_start(svc, NULL); 32898c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis return; 329e6f43ddce78d6846af12550ff9193c5c6fe5844bSteve Block } 33098c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis 33198c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis if ((next_start_time < process_needs_restart) || 33298c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis (process_needs_restart == 0)) { 33398c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis process_needs_restart = next_start_time; 33498c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis } 335e6f43ddce78d6846af12550ff9193c5c6fe5844bSteve Block} 33698c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis 33798c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennisstatic void restart_processes() 33898c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis{ 33998c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis process_needs_restart = 0; 340c42fcf05ce253d5342993b28c412be16e61efffbJamie Gennis service_for_each_flags(SVC_RESTARTING, 341c42fcf05ce253d5342993b28c412be16e61efffbJamie Gennis restart_service_if_needed); 34298c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis} 343e6f43ddce78d6846af12550ff9193c5c6fe5844bSteve Block 34498c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennisstatic void msg_start(const char *name) 34598c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis{ 34698c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis struct service *svc; 34798c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis char *tmp = NULL; 34898c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis char *args = NULL; 34998c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis 35098c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis if (!strchr(name, ':')) 35198c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis svc = service_find_by_name(name); 35298c6383580f94bb7ff9cc9a7cc24d8b8519e484aJamie Gennis else { 353aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis tmp = strdup(name); 354aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis args = strchr(tmp, ':'); 355aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis *args = '\0'; 356aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis args++; 357aca51c06f38155f1435fbc6944d7fc0a9bf1e4e9Jamie Gennis 358 svc = service_find_by_name(tmp); 359 } 360 361 if (svc) { 362 service_start(svc, args); 363 } else { 364 ERROR("no such service '%s'\n", name); 365 } 366 if (tmp) 367 free(tmp); 368} 369 370static void msg_stop(const char *name) 371{ 372 struct service *svc = service_find_by_name(name); 373 374 if (svc) { 375 service_stop(svc); 376 } else { 377 ERROR("no such service '%s'\n", name); 378 } 379} 380 381void handle_control_message(const char *msg, const char *arg) 382{ 383 if (!strcmp(msg,"start")) { 384 msg_start(arg); 385 } else if (!strcmp(msg,"stop")) { 386 msg_stop(arg); 387 } else { 388 ERROR("unknown control msg '%s'\n", msg); 389 } 390} 391 392static void import_kernel_nv(char *name, int in_qemu) 393{ 394 char *value = strchr(name, '='); 395 396 if (value == 0) return; 397 *value++ = 0; 398 if (*name == 0) return; 399 400 if (!in_qemu) 401 { 402 /* on a real device, white-list the kernel options */ 403 if (!strcmp(name,"qemu")) { 404 strlcpy(qemu, value, sizeof(qemu)); 405 } else if (!strcmp(name,"androidboot.console")) { 406 strlcpy(console, value, sizeof(console)); 407 } else if (!strcmp(name,"androidboot.mode")) { 408 strlcpy(bootmode, value, sizeof(bootmode)); 409 } else if (!strcmp(name,"androidboot.serialno")) { 410 strlcpy(serialno, value, sizeof(serialno)); 411 } else if (!strcmp(name,"androidboot.baseband")) { 412 strlcpy(baseband, value, sizeof(baseband)); 413 } else if (!strcmp(name,"androidboot.carrier")) { 414 strlcpy(carrier, value, sizeof(carrier)); 415 } else if (!strcmp(name,"androidboot.bootloader")) { 416 strlcpy(bootloader, value, sizeof(bootloader)); 417 } else if (!strcmp(name,"androidboot.hardware")) { 418 strlcpy(hardware, value, sizeof(hardware)); 419 } 420 } else { 421 /* in the emulator, export any kernel option with the 422 * ro.kernel. prefix */ 423 char buff[32]; 424 int len = snprintf( buff, sizeof(buff), "ro.kernel.%s", name ); 425 if (len < (int)sizeof(buff)) { 426 property_set( buff, value ); 427 } 428 } 429} 430 431static void import_kernel_cmdline(int in_qemu) 432{ 433 char cmdline[1024]; 434 char *ptr; 435 int fd; 436 437 fd = open("/proc/cmdline", O_RDONLY); 438 if (fd >= 0) { 439 int n = read(fd, cmdline, 1023); 440 if (n < 0) n = 0; 441 442 /* get rid of trailing newline, it happens */ 443 if (n > 0 && cmdline[n-1] == '\n') n--; 444 445 cmdline[n] = 0; 446 close(fd); 447 } else { 448 cmdline[0] = 0; 449 } 450 451 ptr = cmdline; 452 while (ptr && *ptr) { 453 char *x = strchr(ptr, ' '); 454 if (x != 0) *x++ = 0; 455 import_kernel_nv(ptr, in_qemu); 456 ptr = x; 457 } 458 459 /* don't expose the raw commandline to nonpriv processes */ 460 chmod("/proc/cmdline", 0440); 461} 462 463static struct command *get_first_command(struct action *act) 464{ 465 struct listnode *node; 466 node = list_head(&act->commands); 467 if (!node) 468 return NULL; 469 470 return node_to_item(node, struct command, clist); 471} 472 473static struct command *get_next_command(struct action *act, struct command *cmd) 474{ 475 struct listnode *node; 476 node = cmd->clist.next; 477 if (!node) 478 return NULL; 479 if (node == &act->commands) 480 return NULL; 481 482 return node_to_item(node, struct command, clist); 483} 484 485static int is_last_command(struct action *act, struct command *cmd) 486{ 487 return (list_tail(&act->commands) == &cmd->clist); 488} 489 490void execute_one_command(void) 491{ 492 int ret; 493 494 if (!cur_action || !cur_command || is_last_command(cur_action, cur_command)) { 495 cur_action = action_remove_queue_head(); 496 cur_command = NULL; 497 if (!cur_action) 498 return; 499 INFO("processing action %p (%s)\n", cur_action, cur_action->name); 500 cur_command = get_first_command(cur_action); 501 } else { 502 cur_command = get_next_command(cur_action, cur_command); 503 } 504 505 if (!cur_command) 506 return; 507 508 ret = cur_command->func(cur_command->nargs, cur_command->args); 509 INFO("command '%s' r=%d\n", cur_command->args[0], ret); 510} 511 512static int wait_for_coldboot_done_action(int nargs, char **args) 513{ 514 int ret; 515 INFO("wait for %s\n", coldboot_done); 516 ret = wait_for_file(coldboot_done, COMMAND_RETRY_TIMEOUT); 517 if (ret) 518 ERROR("Timed out waiting for %s\n", coldboot_done); 519 return ret; 520} 521 522static int property_init_action(int nargs, char **args) 523{ 524 INFO("property init\n"); 525 property_init(); 526 return 0; 527} 528 529static int keychord_init_action(int nargs, char **args) 530{ 531 keychord_init(); 532 return 0; 533} 534 535static int console_init_action(int nargs, char **args) 536{ 537 int fd; 538 char tmp[PROP_VALUE_MAX]; 539 540 if (console[0]) { 541 snprintf(tmp, sizeof(tmp), "/dev/%s", console); 542 console_name = strdup(tmp); 543 } 544 545 fd = open(console_name, O_RDWR); 546 if (fd >= 0) 547 have_console = 1; 548 close(fd); 549 550 if( load_565rle_image(INIT_IMAGE_FILE) ) { 551 fd = open("/dev/tty0", O_WRONLY); 552 if (fd >= 0) { 553 const char *msg; 554 msg = "\n" 555 "\n" 556 "\n" 557 "\n" 558 "\n" 559 "\n" 560 "\n" // console is 40 cols x 30 lines 561 "\n" 562 "\n" 563 "\n" 564 "\n" 565 "\n" 566 "\n" 567 "\n" 568 " A N D R O I D "; 569 write(fd, msg, strlen(msg)); 570 close(fd); 571 } 572 } 573 return 0; 574} 575 576static int set_init_properties_action(int nargs, char **args) 577{ 578 char tmp[PROP_VALUE_MAX]; 579 580 if (qemu[0]) 581 import_kernel_cmdline(1); 582 583 if (!strcmp(bootmode,"factory")) 584 property_set("ro.factorytest", "1"); 585 else if (!strcmp(bootmode,"factory2")) 586 property_set("ro.factorytest", "2"); 587 else 588 property_set("ro.factorytest", "0"); 589 590 property_set("ro.serialno", serialno[0] ? serialno : ""); 591 property_set("ro.bootmode", bootmode[0] ? bootmode : "unknown"); 592 property_set("ro.baseband", baseband[0] ? baseband : "unknown"); 593 property_set("ro.carrier", carrier[0] ? carrier : "unknown"); 594 property_set("ro.bootloader", bootloader[0] ? bootloader : "unknown"); 595 596 property_set("ro.hardware", hardware); 597 snprintf(tmp, PROP_VALUE_MAX, "%d", revision); 598 property_set("ro.revision", tmp); 599 return 0; 600} 601 602static int property_service_init_action(int nargs, char **args) 603{ 604 /* read any property files on system or data and 605 * fire up the property service. This must happen 606 * after the ro.foo properties are set above so 607 * that /data/local.prop cannot interfere with them. 608 */ 609 start_property_service(); 610 return 0; 611} 612 613static int signal_init_action(int nargs, char **args) 614{ 615 signal_init(); 616 return 0; 617} 618 619static int check_startup_action(int nargs, char **args) 620{ 621 /* make sure we actually have all the pieces we need */ 622 if ((get_property_set_fd() < 0) || 623 (get_signal_fd() < 0)) { 624 ERROR("init startup failure\n"); 625 exit(1); 626 } 627 return 0; 628} 629 630static int queue_property_triggers_action(int nargs, char **args) 631{ 632 queue_all_property_triggers(); 633 /* enable property triggers */ 634 property_triggers_enabled = 1; 635 return 0; 636} 637 638#if BOOTCHART 639static int bootchart_init_action(int nargs, char **args) 640{ 641 bootchart_count = bootchart_init(); 642 if (bootchart_count < 0) { 643 ERROR("bootcharting init failure\n"); 644 } else if (bootchart_count > 0) { 645 NOTICE("bootcharting started (period=%d ms)\n", bootchart_count*BOOTCHART_POLLING_MS); 646 } else { 647 NOTICE("bootcharting ignored\n"); 648 } 649} 650#endif 651 652int main(int argc, char **argv) 653{ 654 int fd_count = 0; 655 struct pollfd ufds[4]; 656 char *tmpdev; 657 char* debuggable; 658 char tmp[32]; 659 int property_set_fd_init = 0; 660 int signal_fd_init = 0; 661 int keychord_fd_init = 0; 662 663 if (!strcmp(basename(argv[0]), "ueventd")) 664 return ueventd_main(argc, argv); 665 666 /* clear the umask */ 667 umask(0); 668 669 /* Get the basic filesystem setup we need put 670 * together in the initramdisk on / and then we'll 671 * let the rc file figure out the rest. 672 */ 673 mkdir("/dev", 0755); 674 mkdir("/proc", 0755); 675 mkdir("/sys", 0755); 676 677 mount("tmpfs", "/dev", "tmpfs", MS_NOSUID, "mode=0755"); 678 mkdir("/dev/pts", 0755); 679 mkdir("/dev/socket", 0755); 680 mount("devpts", "/dev/pts", "devpts", 0, NULL); 681 mount("proc", "/proc", "proc", 0, NULL); 682 mount("sysfs", "/sys", "sysfs", 0, NULL); 683 684 /* We must have some place other than / to create the 685 * device nodes for kmsg and null, otherwise we won't 686 * be able to remount / read-only later on. 687 * Now that tmpfs is mounted on /dev, we can actually 688 * talk to the outside world. 689 */ 690 open_devnull_stdio(); 691 log_init(); 692 693 INFO("reading config file\n"); 694 init_parse_config_file("/init.rc"); 695 696 /* pull the kernel commandline and ramdisk properties file in */ 697 import_kernel_cmdline(0); 698 699 get_hardware_name(hardware, &revision); 700 snprintf(tmp, sizeof(tmp), "/init.%s.rc", hardware); 701 init_parse_config_file(tmp); 702 703 action_for_each_trigger("early-init", action_add_queue_tail); 704 705 queue_builtin_action(wait_for_coldboot_done_action, "wait_for_coldboot_done"); 706 queue_builtin_action(property_init_action, "property_init"); 707 queue_builtin_action(keychord_init_action, "keychord_init"); 708 queue_builtin_action(console_init_action, "console_init"); 709 queue_builtin_action(set_init_properties_action, "set_init_properties"); 710 711 /* execute all the boot actions to get us started */ 712 action_for_each_trigger("init", action_add_queue_tail); 713 action_for_each_trigger("early-fs", action_add_queue_tail); 714 action_for_each_trigger("fs", action_add_queue_tail); 715 action_for_each_trigger("post-fs", action_add_queue_tail); 716 717 queue_builtin_action(property_service_init_action, "property_service_init"); 718 queue_builtin_action(signal_init_action, "signal_init"); 719 queue_builtin_action(check_startup_action, "check_startup"); 720 721 /* execute all the boot actions to get us started */ 722 action_for_each_trigger("early-boot", action_add_queue_tail); 723 action_for_each_trigger("boot", action_add_queue_tail); 724 725 /* run all property triggers based on current state of the properties */ 726 queue_builtin_action(queue_property_triggers_action, "queue_propety_triggers"); 727 728 729#if BOOTCHART 730 queue_builtin_action(bootchart_init_action, "bootchart_init"); 731#endif 732 733 for(;;) { 734 int nr, i, timeout = -1; 735 736 execute_one_command(); 737 restart_processes(); 738 739 if (!property_set_fd_init && get_property_set_fd() > 0) { 740 ufds[fd_count].fd = get_property_set_fd(); 741 ufds[fd_count].events = POLLIN; 742 ufds[fd_count].revents = 0; 743 fd_count++; 744 property_set_fd_init = 1; 745 } 746 if (!signal_fd_init && get_signal_fd() > 0) { 747 ufds[fd_count].fd = get_signal_fd(); 748 ufds[fd_count].events = POLLIN; 749 ufds[fd_count].revents = 0; 750 fd_count++; 751 signal_fd_init = 1; 752 } 753 if (!keychord_fd_init && get_keychord_fd() > 0) { 754 ufds[fd_count].fd = get_keychord_fd(); 755 ufds[fd_count].events = POLLIN; 756 ufds[fd_count].revents = 0; 757 fd_count++; 758 keychord_fd_init = 1; 759 } 760 761 if (process_needs_restart) { 762 timeout = (process_needs_restart - gettime()) * 1000; 763 if (timeout < 0) 764 timeout = 0; 765 } 766 767 if (!action_queue_empty() || cur_action) 768 timeout = 0; 769 770#if BOOTCHART 771 if (bootchart_count > 0) { 772 if (timeout < 0 || timeout > BOOTCHART_POLLING_MS) 773 timeout = BOOTCHART_POLLING_MS; 774 if (bootchart_step() < 0 || --bootchart_count == 0) { 775 bootchart_finish(); 776 bootchart_count = 0; 777 } 778 } 779#endif 780 781 nr = poll(ufds, fd_count, timeout); 782 if (nr <= 0) 783 continue; 784 785 for (i = 0; i < fd_count; i++) { 786 if (ufds[i].revents == POLLIN) { 787 if (ufds[i].fd == get_property_set_fd()) 788 handle_property_set_fd(); 789 else if (ufds[i].fd == get_keychord_fd()) 790 handle_keychord(); 791 else if (ufds[i].fd == get_signal_fd()) 792 handle_signal(); 793 } 794 } 795 } 796 797 return 0; 798} 799