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 20 int mtd_name_to_number(const char *name); 21 22 void handle_control_message(const char *msg, const char *arg); 23 24 int create_socket(const char *name, int type, mode_t perm, 25 uid_t uid, gid_t gid); 26 27 void *read_file(const char *fn, unsigned *_sz); 28 29 void log_init(void); 30 void log_set_level(int level); 31 void log_close(void); 32 void log_write(int level, const char *fmt, ...) 33 __attribute__ ((format(printf, 2, 3))); 34 35 #define ERROR(x...) log_write(3, "<3>init: " x) 36 #define NOTICE(x...) log_write(5, "<5>init: " x) 37 #define INFO(x...) log_write(6, "<6>init: " x) 38 39 #define LOG_DEFAULT_LEVEL 3 /* messages <= this level are logged */ 40 #define LOG_UEVENTS 0 /* log uevent messages if 1. verbose */ 41 42 unsigned int decode_uid(const char *s); 43 44 struct listnode 45 { 46 struct listnode *next; 47 struct listnode *prev; 48 }; 49 50 #define node_to_item(node, container, member) \ 51 (container *) (((char*) (node)) - offsetof(container, member)) 52 53 #define list_declare(name) \ 54 struct listnode name = { \ 55 .next = &name, \ 56 .prev = &name, \ 57 } 58 59 #define list_for_each(node, list) \ 60 for (node = (list)->next; node != (list); node = node->next) 61 62 void list_init(struct listnode *list); 63 void list_add_tail(struct listnode *list, struct listnode *item); 64 void list_remove(struct listnode *item); 65 66 #define list_empty(list) ((list) == (list)->next) 67 #define list_head(list) ((list)->next) 68 #define list_tail(list) ((list)->prev) 69 70 struct command 71 { 72 /* list of commands in an action */ 73 struct listnode clist; 74 75 int (*func)(int nargs, char **args); 76 int nargs; 77 char *args[1]; 78 }; 79 80 struct action { 81 /* node in list of all actions */ 82 struct listnode alist; 83 /* node in the queue of pending actions */ 84 struct listnode qlist; 85 /* node in list of actions for a trigger */ 86 struct listnode tlist; 87 88 unsigned hash; 89 const char *name; 90 91 struct listnode commands; 92 struct command *current; 93 }; 94 95 struct socketinfo { 96 struct socketinfo *next; 97 const char *name; 98 const char *type; 99 uid_t uid; 100 gid_t gid; 101 int perm; 102 }; 103 104 struct svcenvinfo { 105 struct svcenvinfo *next; 106 const char *name; 107 const char *value; 108 }; 109 110 #define SVC_DISABLED 0x01 /* do not autostart with class */ 111 #define SVC_ONESHOT 0x02 /* do not restart on exit */ 112 #define SVC_RUNNING 0x04 /* currently active */ 113 #define SVC_RESTARTING 0x08 /* waiting to restart */ 114 #define SVC_CONSOLE 0x10 /* requires console */ 115 #define SVC_CRITICAL 0x20 /* will reboot into recovery if keeps crashing */ 116 117 #define NR_SVC_SUPP_GIDS 6 /* six supplementary groups */ 118 119 #define SVC_MAXARGS 64 120 121 struct service { 122 /* list of all services */ 123 struct listnode slist; 124 125 const char *name; 126 const char *classname; 127 128 unsigned flags; 129 pid_t pid; 130 time_t time_started; /* time of last start */ 131 time_t time_crashed; /* first crash within inspection window */ 132 int nr_crashed; /* number of times crashed within window */ 133 134 uid_t uid; 135 gid_t gid; 136 gid_t supp_gids[NR_SVC_SUPP_GIDS]; 137 size_t nr_supp_gids; 138 139 struct socketinfo *sockets; 140 struct svcenvinfo *envvars; 141 142 struct action onrestart; /* Actions to execute on restart. */ 143 144 /* keycodes for triggering this service via /dev/keychord */ 145 int *keycodes; 146 int nkeycodes; 147 int keychord_id; 148 149 int nargs; 150 /* "MUST BE AT THE END OF THE STRUCT" */ 151 char *args[1]; 152 }; /* ^-------'args' MUST be at the end of this struct! */ 153 154 int parse_config_file(const char *fn); 155 156 struct service *service_find_by_name(const char *name); 157 struct service *service_find_by_pid(pid_t pid); 158 struct service *service_find_by_keychord(int keychord_id); 159 void service_for_each(void (*func)(struct service *svc)); 160 void service_for_each_class(const char *classname, 161 void (*func)(struct service *svc)); 162 void service_for_each_flags(unsigned matchflags, 163 void (*func)(struct service *svc)); 164 void service_stop(struct service *svc); 165 void service_start(struct service *svc, const char *dynamic_args); 166 void property_changed(const char *name, const char *value); 167 168 struct action *action_remove_queue_head(void); 169 void action_add_queue_tail(struct action *act); 170 void action_for_each_trigger(const char *trigger, 171 void (*func)(struct action *act)); 172 void queue_property_triggers(const char *name, const char *value); 173 void queue_all_property_triggers(); 174 175 #define INIT_IMAGE_FILE "/initlogo.rle" 176 177 int load_565rle_image( char *file_name ); 178 179 #endif /* _INIT_INIT_H */ 180