fix copy paste error
[project/procd.git] / state.c
1 /*
2  * Copyright (C) 2013 Felix Fietkau <nbd@openwrt.org>
3  * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU Lesser General Public License version 2.1
7  * as published by the Free Software Foundation
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  * GNU General Public License for more details.
13  */
14
15 #include <sys/reboot.h>
16 #include <stdlib.h>
17 #include <unistd.h>
18
19 #include "procd.h"
20 #include "syslog.h"
21 #include "plug/hotplug.h"
22 #include "watchdog.h"
23 #include "service/service.h"
24
25 enum {
26         STATE_NONE = 0,
27         STATE_EARLY,
28         STATE_INIT,
29         STATE_RUNNING,
30         STATE_SHUTDOWN,
31         STATE_HALT,
32         __STATE_MAX,
33 };
34
35 static int state = STATE_NONE;
36 static int reboot_event;
37
38 static void state_enter(void)
39 {
40
41         switch (state) {
42         case STATE_EARLY:
43                 LOG("- early -\n");
44                 watchdog_init(0);
45                 hotplug("/etc/hotplug.json");
46                 procd_coldplug();
47                 break;
48
49         case STATE_INIT:
50                 // try to reopen incase the wdt was not available before coldplug
51                 watchdog_init(0);
52                 LOG("- ubus -\n");
53                 procd_connect_ubus();
54
55                 LOG("- init -\n");
56                 service_init();
57                 service_start_early("ubus", "/sbin/ubusd");
58
59                 procd_inittab();
60                 procd_inittab_run("respawn");
61                 procd_inittab_run("askconsole");
62                 procd_inittab_run("askfirst");
63                 procd_inittab_run("sysinit");
64                 break;
65
66         case STATE_RUNNING:
67                 LOG("- init complete -\n");
68                 break;
69
70         case STATE_SHUTDOWN:
71                 LOG("- shutdown -\n");
72                 procd_inittab_run("shutdown");
73                 sync();
74                 break;
75
76         case STATE_HALT:
77                 LOG("- reboot -\n");
78                 reboot(reboot_event);
79                 break;
80
81         default:
82                 ERROR("Unhandled state %d\n", state);
83                 return;
84         };
85 }
86
87 void procd_state_next(void)
88 {
89         DEBUG(4, "Change state %d -> %d\n", state, state + 1);
90         state++;
91         state_enter();
92 }
93
94 void procd_shutdown(int event)
95 {
96         DEBUG(2, "Shutting down system with event %x\n", event);
97         reboot_event = event;
98         state = STATE_SHUTDOWN;
99         state_enter();
100 }