2 * Copyright (C) 2013 Felix Fietkau <nbd@openwrt.org>
3 * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
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
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.
16 #include <sys/reboot.h>
20 #include <sys/types.h>
25 #include "plug/hotplug.h"
27 #include "service/service.h"
28 #include "utils/utils.h"
41 static int state
= STATE_NONE
;
42 static int reboot_event
;
44 static void set_stdio(const char* tty
)
47 freopen(tty
, "r", stdin
);
48 freopen(tty
, "w", stdout
);
49 freopen(tty
, "w", stderr
);
51 fcntl(STDERR_FILENO
, F_SETFL
, fcntl(STDERR_FILENO
, F_GETFL
) | O_NONBLOCK
);
54 static void set_console(void)
59 const char* try[] = { "tty0", "console", NULL
}; /* Try the most common outputs */
62 tty
= get_cmdline_val("console",line
,sizeof(line
));
64 split
= strchr(tty
, ',');
75 f
= open(tty
, O_RDONLY
);
90 static void state_enter(void)
92 char ubus_cmd
[] = "/sbin/ubusd";
98 hotplug("/etc/hotplug.json");
103 // try to reopen incase the wdt was not available before coldplug
105 set_stdio("console");
107 procd_connect_ubus();
109 service_start_early("ubus", ubus_cmd
);
115 procd_inittab_run("respawn");
116 procd_inittab_run("askconsole");
117 procd_inittab_run("askfirst");
118 procd_inittab_run("sysinit");
122 LOG("- init complete -\n");
126 /* Redirect output to the console for the users' benefit */
128 LOG("- shutdown -\n");
129 procd_inittab_run("shutdown");
134 // To prevent killed processes from interrupting the sleep
135 signal(SIGCHLD
, SIG_IGN
);
136 LOG("- SIGTERM processes -\n");
140 LOG("- SIGKILL processes -\n");
144 if (reboot_event
== RB_POWER_OFF
)
145 LOG("- power down -\n");
149 /* Allow time for last message to reach serial console, etc */
152 /* We have to fork here, since the kernel calls do_exit(EXIT_SUCCESS)
153 * in linux/kernel/sys.c, which can cause the machine to panic when
154 * the init process exits... */
155 if (!vfork( )) { /* child */
156 reboot(reboot_event
);
165 ERROR("Unhandled state %d\n", state
);
170 void procd_state_next(void)
172 DEBUG(4, "Change state %d -> %d\n", state
, state
+ 1);
177 void procd_state_ubus_connect(void)
179 if (state
== STATE_UBUS
)
183 void procd_shutdown(int event
)
185 if (state
>= STATE_SHUTDOWN
)
187 DEBUG(2, "Shutting down system with event %x\n", event
);
188 reboot_event
= event
;
189 state
= STATE_SHUTDOWN
;