diff options
| -rw-r--r-- | init/Config.in | 9 | ||||
| -rw-r--r-- | init/halt.c | 20 | ||||
| -rw-r--r-- | init/init_shared.c | 81 | ||||
| -rw-r--r-- | init/init_shared.h | 2 | ||||
| -rw-r--r-- | init/poweroff.c | 30 | ||||
| -rw-r--r-- | init/reboot.c | 39 |
6 files changed, 136 insertions, 45 deletions
diff --git a/init/Config.in b/init/Config.in index c8c6a9c..af7aac8 100644 --- a/init/Config.in +++ b/init/Config.in @@ -27,7 +27,7 @@ config CONFIG_FEATURE_INITRD config CONFIG_FEATURE_INIT_COREDUMPS bool " Support dumping core for child processes (debugging only)?" - default y + default n depends on CONFIG_INIT help If this option is enabled and the file /.init_enable_core @@ -43,31 +43,28 @@ config CONFIG_FEATURE_EXTRA_QUIET Prevent init from logging some messages to the console during boot. -# Some apps that are meaningless without BusyBox running as init config CONFIG_HALT bool "halt" default y - depends on CONFIG_INIT help - 'halt' tells the kernel to stop all processes and halt the system. + Stop all processes and halt the system. config CONFIG_POWEROFF bool "poweroff" default y - depends on CONFIG_INIT help Stop all processes and (try to) power off the system. config CONFIG_REBOOT bool "reboot" default y - depends on CONFIG_INIT help Stop all processes and reboot the system. config CONFIG_MINIT bool "minit" default n + depends on ! CONFIG_INIT help Minimal init, based on minit v0.9.1. This is a simple init replacement that handles starting/stopping services, diff --git a/init/halt.c b/init/halt.c index 10f16c7..decdaea 100644 --- a/init/halt.c +++ b/init/halt.c @@ -2,7 +2,6 @@ /* * Mini halt implementation for busybox * - * Copyright (C) 1995, 1996 by Bruce Perens <bruce@pixar.com>. * Copyright (C) 1999-2003 by Erik Andersen <andersen@codepoet.org> * * This program is free software; you can redistribute it and/or modify @@ -21,12 +20,29 @@ * */ -#include "busybox.h" #include <signal.h> +#include <stdlib.h> +#include <unistd.h> +#include <getopt.h> +#include <sys/reboot.h> +#include "busybox.h" #include "init_shared.h" extern int halt_main(int argc, char **argv) { + char *delay; /* delay in seconds before rebooting */ + + if(bb_getopt_ulflags(argc, argv, "d:", &delay)) { + sleep(atoi(delay)); + } + +#ifndef CONFIG_INIT +#ifndef RB_HALT_SYSTEM +#define RB_HALT_SYSTEM 0xcdef0123 +#endif + return(bb_shutdown_system(RB_HALT_SYSTEM)); +#else return kill_init(SIGUSR1); +#endif } diff --git a/init/init_shared.c b/init/init_shared.c index 842942f..81e1ea0 100644 --- a/init/init_shared.c +++ b/init/init_shared.c @@ -1,9 +1,35 @@ +/* vi: set sw=4 ts=4: */ +/* + * Stuff shared between init, reboot, halt, and poweroff + * + * Copyright (C) 1999-2003 by Erik Andersen <andersen@codepoet.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + #include <signal.h> +#include <stdlib.h> +#include <unistd.h> +#include <getopt.h> +#include <sys/reboot.h> +#include <sys/reboot.h> +#include <sys/syslog.h> #include "busybox.h" - #include "init_shared.h" - extern int kill_init(int sig) { #ifdef CONFIG_FEATURE_INITRD @@ -19,3 +45,54 @@ extern int kill_init(int sig) return(kill(1, sig)); #endif } + +#ifndef CONFIG_INIT +#define LOG 0x1 +#define CONSOLE 0x2 +extern int bb_shutdown_system(unsigned long magic) +{ + int pri = LOG_KERN|LOG_NOTICE|LOG_FACMASK; + char *message; + + /* Don't kill ourself */ + signal(SIGTERM,SIG_IGN); + signal(SIGHUP,SIG_IGN); + setpgrp(); + + /* Allow Ctrl-Alt-Del to reboot system. */ +#ifndef RB_ENABLE_CAD +#define RB_ENABLE_CAD 0x89abcdef +#endif + reboot(RB_ENABLE_CAD); + + openlog("shutdown", 0, pri); + + message = "\n\rThe system is going down NOW !!\n"; + syslog(pri, "%s", message); + fprintf(stdout, "%s", message); + + sync(); + + /* Send signals to every process _except_ pid 1 */ + message = "\rSending SIGTERM to all processes.\n"; + syslog(pri, "%s", message); + fprintf(stdout, "%s", message); + + kill(-1, SIGTERM); + sleep(1); + sync(); + + message = "\rSending SIGKILL to all processes.\n"; + syslog(pri, "%s", message); + fprintf(stdout, "%s", message); + + kill(-1, SIGKILL); + sleep(1); + + sync(); + + reboot(magic); + return 0; /* Shrug */ +} +#endif + diff --git a/init/init_shared.h b/init/init_shared.h index d10a1bd..1e4cfac 100644 --- a/init/init_shared.h +++ b/init/init_shared.h @@ -1 +1,3 @@ extern int kill_init(int sig); +extern int bb_shutdown_system(unsigned long magic); + diff --git a/init/poweroff.c b/init/poweroff.c index d630aa6..e5d45df 100644 --- a/init/poweroff.c +++ b/init/poweroff.c @@ -2,7 +2,6 @@ /* * Mini poweroff implementation for busybox * - * Copyright (C) 1995, 1996 by Bruce Perens <bruce@pixar.com>. * Copyright (C) 1999-2003 by Erik Andersen <andersen@codepoet.org> * * This program is free software; you can redistribute it and/or modify @@ -21,10 +20,37 @@ * */ -#include "busybox.h" #include <signal.h> +#include <stdlib.h> +#include <unistd.h> +#include <getopt.h> +#include <sys/reboot.h> +#include "busybox.h" +#include "init_shared.h" + extern int poweroff_main(int argc, char **argv) { + char *delay; /* delay in seconds before rebooting */ + + if(bb_getopt_ulflags(argc, argv, "d:", &delay)) { + sleep(atoi(delay)); + } + +#ifndef CONFIG_INIT +#ifndef RB_POWER_OFF +#define RB_POWER_OFF 0x4321fedc +#endif + return(bb_shutdown_system(RB_POWER_OFF)); +#else return kill_init(SIGUSR2); +#endif } + +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/init/reboot.c b/init/reboot.c index 5ca8b58..a3c0000 100644 --- a/init/reboot.c +++ b/init/reboot.c @@ -2,7 +2,6 @@ /* * Mini reboot implementation for busybox * - * Copyright (C) 1995, 1996 by Bruce Perens <bruce@pixar.com>. * Copyright (C) 1999-2003 by Erik Andersen <andersen@codepoet.org> * * This program is free software; you can redistribute it and/or modify @@ -30,11 +29,6 @@ #include "init_shared.h" -#ifndef RB_ENABLE_CAD -static const int RB_ENABLE_CAD = 0x89abcdef; -static const int RB_AUTOBOOT = 0x01234567; -#endif - extern int reboot_main(int argc, char **argv) { char *delay; /* delay in seconds before rebooting */ @@ -43,34 +37,13 @@ extern int reboot_main(int argc, char **argv) sleep(atoi(delay)); } -#ifdef CONFIG_USER_INIT - /* Don't kill ourself */ - signal(SIGTERM,SIG_IGN); - signal(SIGHUP,SIG_IGN); - setpgrp(); - - /* Allow Ctrl-Alt-Del to reboot system. */ - reboot(RB_ENABLE_CAD); - - message(CONSOLE|LOG, "\n\rThe system is going down NOW !!\n"); - sync(); - - /* Send signals to every process _except_ pid 1 */ - message(CONSOLE|LOG, "\rSending SIGTERM to all processes.\n"); - kill(-1, SIGTERM); - sleep(1); - sync(); - - message(CONSOLE|LOG, "\rSending SIGKILL to all processes.\n"); - kill(-1, SIGKILL); - sleep(1); - - sync(); - - reboot(RB_AUTOBOOT); - return 0; /* Shrug */ +#ifndef CONFIG_INIT +#ifndef RB_AUTOBOOT +#define RB_AUTOBOOT 0x01234567 +#endif + return(bb_shutdown_system(RB_AUTOBOOT)); #else - return kill_init(SIGTERM); + return kill_init(SIGUSR2); #endif } |