init.h revision 504bc5175a8fe5a2f2552903afee761a86283cf4
1/* 2 * Copyright (C) 2007 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 17#ifndef _INIT_INIT_H 18#define _INIT_INIT_H 19 20int mtd_name_to_number(const char *name); 21 22void handle_control_message(const char *msg, const char *arg); 23 24int create_socket(const char *name, int type, mode_t perm, 25 uid_t uid, gid_t gid); 26 27void *read_file(const char *fn, unsigned *_sz); 28time_t gettime(void); 29 30void log_init(void); 31void log_set_level(int level); 32void log_close(void); 33void log_write(int level, const char *fmt, ...) 34 __attribute__ ((format(printf, 2, 3))); 35 36#define ERROR(x...) log_write(3, "<3>init: " x) 37#define NOTICE(x...) log_write(5, "<5>init: " x) 38#define INFO(x...) log_write(6, "<6>init: " x) 39 40#define LOG_DEFAULT_LEVEL 3 /* messages <= this level are logged */ 41#define LOG_UEVENTS 0 /* log uevent messages if 1. verbose */ 42 43unsigned int decode_uid(const char *s); 44 45struct listnode 46{ 47 struct listnode *next; 48 struct listnode *prev; 49}; 50 51#define node_to_item(node, container, member) \ 52 (container *) (((char*) (node)) - offsetof(container, member)) 53 54#define list_declare(name) \ 55 struct listnode name = { \ 56 .next = &name, \ 57 .prev = &name, \ 58 } 59 60#define list_for_each(node, list) \ 61 for (node = (list)->next; node != (list); node = node->next) 62 63void list_init(struct listnode *list); 64void list_add_tail(struct listnode *list, struct listnode *item); 65void list_remove(struct listnode *item); 66 67#define list_empty(list) ((list) == (list)->next) 68#define list_head(list) ((list)->next) 69#define list_tail(list) ((list)->prev) 70 71struct command 72{ 73 /* list of commands in an action */ 74 struct listnode clist; 75 76 int (*func)(int nargs, char **args); 77 int nargs; 78 char *args[1]; 79}; 80 81struct action { 82 /* node in list of all actions */ 83 struct listnode alist; 84 /* node in the queue of pending actions */ 85 struct listnode qlist; 86 /* node in list of actions for a trigger */ 87 struct listnode tlist; 88 89 unsigned hash; 90 const char *name; 91 92 struct listnode commands; 93 struct command *current; 94}; 95 96struct socketinfo { 97 struct socketinfo *next; 98 const char *name; 99 const char *type; 100 uid_t uid; 101 gid_t gid; 102 int perm; 103}; 104 105struct svcenvinfo { 106 struct svcenvinfo *next; 107 const char *name; 108 const char *value; 109}; 110 111#define SVC_DISABLED 0x01 /* do not autostart with class */ 112#define SVC_ONESHOT 0x02 /* do not restart on exit */ 113#define SVC_RUNNING 0x04 /* currently active */ 114#define SVC_RESTARTING 0x08 /* waiting to restart */ 115#define SVC_CONSOLE 0x10 /* requires console */ 116#define SVC_CRITICAL 0x20 /* will reboot into recovery if keeps crashing */ 117 118#define NR_SVC_SUPP_GIDS 12 /* twelve supplementary groups */ 119 120#define SVC_MAXARGS 64 121 122struct service { 123 /* list of all services */ 124 struct listnode slist; 125 126 const char *name; 127 const char *classname; 128 129 unsigned flags; 130 pid_t pid; 131 time_t time_started; /* time of last start */ 132 time_t time_crashed; /* first crash within inspection window */ 133 int nr_crashed; /* number of times crashed within window */ 134 135 uid_t uid; 136 gid_t gid; 137 gid_t supp_gids[NR_SVC_SUPP_GIDS]; 138 size_t nr_supp_gids; 139 140 struct socketinfo *sockets; 141 struct svcenvinfo *envvars; 142 143 struct action onrestart; /* Actions to execute on restart. */ 144 145 /* keycodes for triggering this service via /dev/keychord */ 146 int *keycodes; 147 int nkeycodes; 148 int keychord_id; 149 150 int ioprio_class; 151 int ioprio_pri; 152 153 int nargs; 154 /* "MUST BE AT THE END OF THE STRUCT" */ 155 char *args[1]; 156}; /* ^-------'args' MUST be at the end of this struct! */ 157 158int parse_config_file(const char *fn); 159 160struct service *service_find_by_name(const char *name); 161struct service *service_find_by_pid(pid_t pid); 162struct service *service_find_by_keychord(int keychord_id); 163void service_for_each(void (*func)(struct service *svc)); 164void service_for_each_class(const char *classname, 165 void (*func)(struct service *svc)); 166void service_for_each_flags(unsigned matchflags, 167 void (*func)(struct service *svc)); 168void service_stop(struct service *svc); 169void service_start(struct service *svc, const char *dynamic_args); 170void property_changed(const char *name, const char *value); 171 172#define INIT_IMAGE_FILE "/initlogo.rle" 173 174int load_565rle_image( char *file_name ); 175 176#endif /* _INIT_INIT_H */ 177