From 008d0be72b2f160382c6e880765e96b64a050c65 Mon Sep 17 00:00:00 2001 From: Andreas Baumann Date: Sat, 3 Jan 2015 12:04:58 +0100 Subject: imported original firmware WRT54GL_v4.30.11_11_US --- release/src/router/busybox/init/Config.in | 97 ++ release/src/router/busybox/init/Makefile | 30 + release/src/router/busybox/init/Makefile.in | 61 ++ release/src/router/busybox/init/halt.c | 48 + release/src/router/busybox/init/init.c | 1190 +++++++++++++++++++++++++ release/src/router/busybox/init/init_shared.c | 97 ++ release/src/router/busybox/init/init_shared.h | 3 + release/src/router/busybox/init/mesg.c | 58 ++ release/src/router/busybox/init/minit.c | 612 +++++++++++++ release/src/router/busybox/init/msvc.c | 300 +++++++ release/src/router/busybox/init/pidfilehack.c | 78 ++ release/src/router/busybox/init/poweroff.c | 56 ++ release/src/router/busybox/init/reboot.c | 56 ++ 13 files changed, 2686 insertions(+) create mode 100755 release/src/router/busybox/init/Config.in create mode 100644 release/src/router/busybox/init/Makefile create mode 100755 release/src/router/busybox/init/Makefile.in create mode 100644 release/src/router/busybox/init/halt.c create mode 100644 release/src/router/busybox/init/init.c create mode 100644 release/src/router/busybox/init/init_shared.c create mode 100644 release/src/router/busybox/init/init_shared.h create mode 100644 release/src/router/busybox/init/mesg.c create mode 100644 release/src/router/busybox/init/minit.c create mode 100644 release/src/router/busybox/init/msvc.c create mode 100644 release/src/router/busybox/init/pidfilehack.c create mode 100644 release/src/router/busybox/init/poweroff.c create mode 100644 release/src/router/busybox/init/reboot.c (limited to 'release/src/router/busybox/init') diff --git a/release/src/router/busybox/init/Config.in b/release/src/router/busybox/init/Config.in new file mode 100755 index 00000000..eb421138 --- /dev/null +++ b/release/src/router/busybox/init/Config.in @@ -0,0 +1,97 @@ +# +# For a description of the syntax of this configuration file, +# see scripts/kbuild/config-language.txt. +# + +menu "Init Utilities" + +config CONFIG_INIT + bool "init" + default n + help + init is the first program run when the system boots. + +config CONFIG_FEATURE_USE_INITTAB + bool " Support reading an inittab file?" + default y + depends on CONFIG_INIT + help + Allow init to read an inittab file when the system boot. + +config CONFIG_FEATURE_INITRD + bool " Support running init from within an initrd?" + default y + depends on CONFIG_INIT + help + Allow init to be called from an initrd as linuxrc. + +config CONFIG_FEATURE_INIT_COREDUMPS + bool " Support dumping core for child processes (debugging only)?" + default n + depends on CONFIG_INIT + help + If this option is enabled and the file /.init_enable_core + exists, then init will call setrlimit() to allow unlimited + core file sizes. If this option is disabled, processes + will not generate any core files. + +config CONFIG_FEATURE_EXTRA_QUIET + bool " Should init be _extra_ quiet on boot?" + default y + depends on CONFIG_INIT + help + Prevent init from logging some messages to the console + during boot. + +config CONFIG_HALT + bool "halt" + default y + help + Stop all processes and halt the system. + +config CONFIG_POWEROFF + bool "poweroff" + default y + help + Stop all processes and (try to) power off the system. + +config CONFIG_REBOOT + bool "reboot" + default y + 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, + and service dependencies. See http://www.fefe.de/minit/ + for additional information. + +config CONFIG_PIDFILEHACK + bool "pidfilehack" + default y + depends on CONFIG_MINIT + help + pidfilehack is used by minit to run servers. + +config CONFIG_MSVC + bool "msvc" + default y + depends on CONFIG_MINIT + help + msvc is used to start and stop processes controlled by minit + +config CONFIG_MESG + bool "mesg" + default y + help + Mesg controls the access to your terminal by others. It + is typically used to allow or disallow other users to write + to your terminal + +endmenu + diff --git a/release/src/router/busybox/init/Makefile b/release/src/router/busybox/init/Makefile new file mode 100644 index 00000000..816230bf --- /dev/null +++ b/release/src/router/busybox/init/Makefile @@ -0,0 +1,30 @@ +# Makefile for busybox +# +# Copyright (C) 1999-2003 by Erik Andersen +# +# 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 +# + +TOPDIR:= ../ +INIT_DIR:=./ +include $(TOPDIR).config +include $(TOPDIR)Rules.mak +include Makefile.in +all: $(libraries-y) +-include $(TOPDIR).depend + +clean: + rm -f *.o *.a $(AR_TARGET) + diff --git a/release/src/router/busybox/init/Makefile.in b/release/src/router/busybox/init/Makefile.in new file mode 100755 index 00000000..1b13f693 --- /dev/null +++ b/release/src/router/busybox/init/Makefile.in @@ -0,0 +1,61 @@ +# Makefile for busybox +# +# Copyright (C) 1999-2003 by Erik Andersen +# +# 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 +# + +INIT_AR:=init.a +ifndef $(INIT_DIR) +INIT_DIR:=$(TOPDIR)init/ +endif + +INIT-y:= +INIT-$(CONFIG_HALT) += halt.o +INIT-$(CONFIG_INIT) += init.o +INIT-$(CONFIG_MESG) += mesg.o +INIT-$(CONFIG_MINIT) += minit.o +INIT-$(CONFIG_MSVC) += msvc.o +INIT-$(CONFIG_PIDFILEHACK) += pidfilehack.o +INIT-$(CONFIG_POWEROFF) += poweroff.o +INIT-$(CONFIG_REBOOT) += reboot.o + +ifeq ($(CONFIG_HALT), y) +CONFIG_INIT_SHARED=y +else +ifeq ($(CONFIG_INIT), y) +CONFIG_INIT_SHARED=y +else +ifeq ($(CONFIG_POWEROFF), y) +CONFIG_INIT_SHARED=y +else +ifeq ($(CONFIG_REBOOT), y) +CONFIG_INIT_SHARED=y +else +CONFIG_INIT_SHARED=n +endif +endif +endif +endif + +ifeq ($(CONFIG_INIT_SHARED), y) +INIT-$(CONFIG_INIT_SHARED) += init_shared.o +endif + +libraries-y+=$(INIT_DIR)$(INIT_AR) + +$(INIT_DIR)$(INIT_AR): $(patsubst %,$(INIT_DIR)%, $(INIT-y)) + $(AR) -ro $@ $(patsubst %,$(INIT_DIR)%, $(INIT-y)) + diff --git a/release/src/router/busybox/init/halt.c b/release/src/router/busybox/init/halt.c new file mode 100644 index 00000000..decdaeaf --- /dev/null +++ b/release/src/router/busybox/init/halt.c @@ -0,0 +1,48 @@ +/* vi: set sw=4 ts=4: */ +/* + * Mini halt implementation for busybox + * + * Copyright (C) 1999-2003 by Erik Andersen + * + * 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 +#include +#include +#include +#include +#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/release/src/router/busybox/init/init.c b/release/src/router/busybox/init/init.c new file mode 100644 index 00000000..1ecc43e1 --- /dev/null +++ b/release/src/router/busybox/init/init.c @@ -0,0 +1,1190 @@ +/* vi: set sw=4 ts=4: */ +/* + * Mini init implementation for busybox + * + * Copyright (C) 1995, 1996 by Bruce Perens . + * Copyright (C) 1999-2003 by Erik Andersen + * Adjusted by so many folks, it's impossible to keep track. + * + * 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 + * + */ + +/* Turn this on to disable all the dangerous + rebooting stuff when debugging. +#define DEBUG_INIT +*/ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "busybox.h" + +#include "init_shared.h" + + +#ifdef CONFIG_SYSLOGD +# include +#endif + + +#if defined(__UCLIBC__) && !defined(__UCLIBC_HAS_MMU__) +#define fork vfork +#endif + +#define INIT_BUFFS_SIZE 256 + +/* From */ +struct vt_stat { + unsigned short v_active; /* active vt */ + unsigned short v_signal; /* signal to send */ + unsigned short v_state; /* vt bitmask */ +}; +static const int VT_GETSTATE = 0x5603; /* get global vt state info */ + +/* From */ +struct serial_struct { + int type; + int line; + int port; + int irq; + int flags; + int xmit_fifo_size; + int custom_divisor; + int baud_base; + unsigned short close_delay; + char reserved_char[2]; + int hub6; + unsigned short closing_wait; /* time to wait before closing */ + unsigned short closing_wait2; /* no longer used... */ + int reserved[4]; +}; + + +#ifndef _PATH_STDPATH +#define _PATH_STDPATH "/usr/bin:/bin:/usr/sbin:/sbin" +#endif + +#if defined CONFIG_FEATURE_INIT_COREDUMPS +/* + * When a file named CORE_ENABLE_FLAG_FILE exists, setrlimit is called + * before processes are spawned to set core file size as unlimited. + * This is for debugging only. Don't use this is production, unless + * you want core dumps lying about.... + */ +#define CORE_ENABLE_FLAG_FILE "/.init_enable_core" +#include +#include +#endif + +#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c)) + +#define SHELL "/bin/sh" /* Default shell */ +#define LOGIN_SHELL "-" SHELL /* Default login shell */ +#define INITTAB "/etc/inittab" /* inittab file location */ +#ifndef INIT_SCRIPT +#define INIT_SCRIPT "/etc/init.d/rcS" /* Default sysinit script. */ +#endif + +#define MAXENV 16 /* Number of env. vars */ + +#define CONSOLE_BUFF_SIZE 32 + +/* Allowed init action types */ +#define SYSINIT 0x001 +#define RESPAWN 0x002 +#define ASKFIRST 0x004 +#define WAIT 0x008 +#define ONCE 0x010 +#define CTRLALTDEL 0x020 +#define SHUTDOWN 0x040 +#define RESTART 0x080 + +/* A mapping between "inittab" action name strings and action type codes. */ +struct init_action_type { + const char *name; + int action; +}; + +static const struct init_action_type actions[] = { + {"sysinit", SYSINIT}, + {"respawn", RESPAWN}, + {"askfirst", ASKFIRST}, + {"wait", WAIT}, + {"once", ONCE}, + {"ctrlaltdel", CTRLALTDEL}, + {"shutdown", SHUTDOWN}, + {"restart", RESTART}, + {0, 0} +}; + +/* Set up a linked list of init_actions, to be read from inittab */ +struct init_action { + pid_t pid; + char command[INIT_BUFFS_SIZE]; + char terminal[CONSOLE_BUFF_SIZE]; + struct init_action *next; + int action; +}; + +/* Static variables */ +static struct init_action *init_action_list = NULL; +static char console[CONSOLE_BUFF_SIZE] = _PATH_CONSOLE; + +#ifndef CONFIG_SYSLOGD +static char *log = VC_5; +#endif +static sig_atomic_t got_cont = 0; +static const int LOG = 0x1; +static const int CONSOLE = 0x2; + +#if defined CONFIG_FEATURE_EXTRA_QUIET +static const int MAYBE_CONSOLE = 0x0; +#else +#define MAYBE_CONSOLE CONSOLE +#endif +#ifndef RB_HALT_SYSTEM +static const int RB_HALT_SYSTEM = 0xcdef0123; +static const int RB_ENABLE_CAD = 0x89abcdef; +static const int RB_DISABLE_CAD = 0; + +#define RB_POWER_OFF 0x4321fedc +static const int RB_AUTOBOOT = 0x01234567; +#endif + +static const char * const environment[] = { + "HOME=/", + "PATH=" _PATH_STDPATH, + "SHELL=" SHELL, + "USER=root", + NULL +}; + +/* Function prototypes */ +static void delete_init_action(struct init_action *a); +static int waitfor(const struct init_action *a); +static void halt_signal(int sig); + + +static void loop_forever(void) +{ + while (1) + sleep(1); +} + +/* Print a message to the specified device. + * Device may be bitwise-or'd from LOG | CONSOLE */ +#ifndef DEBUG_INIT +static inline void messageD(int device, const char *fmt, ...) +{ +} +#else +#define messageD message +#endif +static void message(int device, const char *fmt, ...) + __attribute__ ((format(printf, 2, 3))); +static void message(int device, const char *fmt, ...) +{ + va_list arguments; + int l; + char msg[1024]; +#ifndef CONFIG_SYSLOGD + static int log_fd = -1; +#endif + + msg[0] = '\r'; + va_start(arguments, fmt); + l = vsnprintf(msg + 1, sizeof(msg) - 2, fmt, arguments) + 1; + va_end(arguments); + +#ifdef CONFIG_SYSLOGD + /* Log the message to syslogd */ + if (device & LOG) { + /* don`t out "\r\n" */ + syslog_msg(LOG_DAEMON, LOG_INFO, msg + 1); + } + + msg[l++] = '\n'; + msg[l] = 0; +#else + + msg[l++] = '\n'; + msg[l] = 0; + /* Take full control of the log tty, and never close it. + * It's mine, all mine! Muhahahaha! */ + if (log_fd < 0) { + if ((log_fd = device_open(log, O_RDWR | O_NDELAY | O_NOCTTY)) < 0) { + log_fd = -2; + bb_error_msg("Bummer, can't write to log on %s!", log); + device = CONSOLE; + } else { + fcntl(log_fd, F_SETFD, FD_CLOEXEC); + } + } + if ((device & LOG) && (log_fd >= 0)) { + bb_full_write(log_fd, msg, l); + } +#endif + + if (device & CONSOLE) { + int fd = device_open(_PATH_CONSOLE, + O_WRONLY | O_NOCTTY | O_NDELAY); + /* Always send console messages to /dev/console so people will see them. */ + if (fd >= 0) { + bb_full_write(fd, msg, l); + close(fd); +#ifdef DEBUG_INIT + /* all descriptors may be closed */ + } else { + bb_error_msg("Bummer, can't print: "); + va_start(arguments, fmt); + vfprintf(stderr, fmt, arguments); + va_end(arguments); +#endif + } + } +} + +/* Set terminal settings to reasonable defaults */ +static void set_term(int fd) +{ + struct termios tty; + + tcgetattr(fd, &tty); + + /* set control chars */ + tty.c_cc[VINTR] = 3; /* C-c */ + tty.c_cc[VQUIT] = 28; /* C-\ */ + tty.c_cc[VERASE] = 127; /* C-? */ + tty.c_cc[VKILL] = 21; /* C-u */ + tty.c_cc[VEOF] = 4; /* C-d */ + tty.c_cc[VSTART] = 17; /* C-q */ + tty.c_cc[VSTOP] = 19; /* C-s */ + tty.c_cc[VSUSP] = 26; /* C-z */ + + /* use line dicipline 0 */ + tty.c_line = 0; + + /* Make it be sane */ + tty.c_cflag &= CBAUD | CBAUDEX | CSIZE | CSTOPB | PARENB | PARODD; + tty.c_cflag |= CREAD | HUPCL | CLOCAL; + + + /* input modes */ + tty.c_iflag = ICRNL | IXON | IXOFF; + + /* output modes */ + tty.c_oflag = OPOST | ONLCR; + + /* local modes */ + tty.c_lflag = + ISIG | ICANON | ECHO | ECHOE | ECHOK | ECHOCTL | ECHOKE | IEXTEN; + + tcsetattr(fd, TCSANOW, &tty); +} + +/* How much memory does this machine have? + Units are kBytes to avoid overflow on 4GB machines */ +static int check_free_memory(void) +{ + struct sysinfo info; + unsigned int result, u, s = 10; + + if (sysinfo(&info) != 0) { + bb_perror_msg("Error checking free memory"); + return -1; + } + + /* Kernels 2.0.x and 2.2.x return info.mem_unit==0 with values in bytes. + * Kernels 2.4.0 return info.mem_unit in bytes. */ + u = info.mem_unit; + if (u == 0) + u = 1; + while ((u & 1) == 0 && s > 0) { + u >>= 1; + s--; + } + result = (info.totalram >> s) + (info.totalswap >> s); + result = result * u; + if (result < 0) + result = INT_MAX; + return result; +} + +static void console_init(void) +{ + int fd; + int tried = 0; + struct vt_stat vt; + struct serial_struct sr; + char *s; + + if ((s = getenv("CONSOLE")) != NULL || (s = getenv("console")) != NULL) { + safe_strncpy(console, s, sizeof(console)); +#if #cpu(sparc) + /* sparc kernel supports console=tty[ab] parameter which is also + * passed to init, so catch it here */ + /* remap tty[ab] to /dev/ttyS[01] */ + if (strcmp(s, "ttya") == 0) + safe_strncpy(console, SC_0, sizeof(console)); + else if (strcmp(s, "ttyb") == 0) + safe_strncpy(console, SC_1, sizeof(console)); +#endif + } else { + /* 2.2 kernels: identify the real console backend and try to use it */ + if (ioctl(0, TIOCGSERIAL, &sr) == 0) { + /* this is a serial console */ + snprintf(console, sizeof(console) - 1, SC_FORMAT, sr.line); + } else if (ioctl(0, VT_GETSTATE, &vt) == 0) { + /* this is linux virtual tty */ + snprintf(console, sizeof(console) - 1, VC_FORMAT, vt.v_active); + } else { + safe_strncpy(console, _PATH_CONSOLE, sizeof(console)); + tried++; + } + } + + while ((fd = open(console, O_RDONLY | O_NONBLOCK)) < 0 && tried < 2) { + /* Can't open selected console -- try + logical system console and VT_MASTER */ + safe_strncpy(console, (tried == 0 ? _PATH_CONSOLE : CURRENT_VC), + sizeof(console)); + tried++; + } + if (fd < 0) { + /* Perhaps we should panic here? */ +#ifndef CONFIG_SYSLOGD + log = +#endif + safe_strncpy(console, "/dev/null", sizeof(console)); + } else { + s = getenv("TERM"); + /* check for serial console */ + if (ioctl(fd, TIOCGSERIAL, &sr) == 0) { + /* Force the TERM setting to vt102 for serial console -- + * if TERM is set to linux (the default) */ + if (s == NULL || strcmp(s, "linux") == 0) + putenv("TERM=vt102"); +#ifndef CONFIG_SYSLOGD + log = console; +#endif + } else { + if (s == NULL) + putenv("TERM=linux"); + } + close(fd); + } + messageD(LOG, "console=%s", console); +} + +static void fixup_argv(int argc, char **argv, char *new_argv0) +{ + int len; + + /* Fix up argv[0] to be certain we claim to be init */ + len = strlen(argv[0]); + memset(argv[0], 0, len); + safe_strncpy(argv[0], new_argv0, len + 1); + + /* Wipe argv[1]-argv[N] so they don't clutter the ps listing */ + len = 1; + while (argc > len) { + memset(argv[len], 0, strlen(argv[len])); + len++; + } +} + +static pid_t run(const struct init_action *a) +{ + struct stat sb; + int i, junk; + pid_t pid, pgrp, tmp_pid; + char *s, *tmpCmd, *cmd[INIT_BUFFS_SIZE], *cmdpath; + char buf[INIT_BUFFS_SIZE + 6]; /* INIT_BUFFS_SIZE+strlen("exec ")+1 */ + sigset_t nmask, omask; + static const char press_enter[] = +#ifdef CUSTOMIZED_BANNER +#include CUSTOMIZED_BANNER +#endif + "\nPlease press Enter to activate this console. "; + + /* Block sigchild while forking. */ + sigemptyset(&nmask); + sigaddset(&nmask, SIGCHLD); + sigprocmask(SIG_BLOCK, &nmask, &omask); + + if ((pid = fork()) == 0) { + /* Clean up */ + close(0); + close(1); + close(2); + sigprocmask(SIG_SETMASK, &omask, NULL); + + /* Reset signal handlers that were set by the parent process */ + signal(SIGUSR1, SIG_DFL); + signal(SIGUSR2, SIG_DFL); + signal(SIGINT, SIG_DFL); + signal(SIGTERM, SIG_DFL); + signal(SIGHUP, SIG_DFL); + signal(SIGCONT, SIG_DFL); + signal(SIGSTOP, SIG_DFL); + signal(SIGTSTP, SIG_DFL); + + /* Create a new session and make ourself the process + * group leader */ + setsid(); + + /* Open the new terminal device */ + if ((device_open(a->terminal, O_RDWR)) < 0) { + if (stat(a->terminal, &sb) != 0) { + message(LOG | CONSOLE, "device '%s' does not exist.", + a->terminal); + _exit(1); + } + message(LOG | CONSOLE, "Bummer, can't open %s", a->terminal); + _exit(1); + } + + /* Make sure the terminal will act fairly normal for us */ + set_term(0); + /* Setup stdout, stderr for the new process so + * they point to the supplied terminal */ + dup(0); + dup(0); + + /* If the init Action requires us to wait, then force the + * supplied terminal to be the controlling tty. */ + if (a->action & (SYSINIT | WAIT | CTRLALTDEL | SHUTDOWN | RESTART)) { + + /* Now fork off another process to just hang around */ + if ((pid = fork()) < 0) { + message(LOG | CONSOLE, "Can't fork!"); + _exit(1); + } + + if (pid > 0) { + + /* We are the parent -- wait till the child is done */ + signal(SIGINT, SIG_IGN); + signal(SIGTSTP, SIG_IGN); + signal(SIGQUIT, SIG_IGN); + signal(SIGCHLD, SIG_DFL); + + /* Wait for child to exit */ + while ((tmp_pid = waitpid(pid, &junk, 0)) != pid); + + /* See if stealing the controlling tty back is necessary */ + pgrp = tcgetpgrp(0); + if (pgrp != getpid()) + _exit(0); + + /* Use a temporary process to steal the controlling tty. */ + if ((pid = fork()) < 0) { + message(LOG | CONSOLE, "Can't fork!"); + _exit(1); + } + if (pid == 0) { + setsid(); + ioctl(0, TIOCSCTTY, 1); + _exit(0); + } + while ((tmp_pid = waitpid(pid, &junk, 0)) != pid) { + if (tmp_pid < 0 && errno == ECHILD) + break; + } + _exit(0); + } + + /* Now fall though to actually execute things */ + } + + /* See if any special /bin/sh requiring characters are present */ + if (strpbrk(a->command, "~`!$^&*()=|\\{}[];\"'<>?") != NULL) { + cmd[0] = SHELL; + cmd[1] = "-c"; + cmd[2] = strcat(strcpy(buf, "exec "), a->command); + cmd[3] = NULL; + } else { + /* Convert command (char*) into cmd (char**, one word per string) */ + strcpy(buf, a->command); + s = buf; + for (tmpCmd = buf, i = 0; (tmpCmd = strsep(&s, " \t")) != NULL;) { + if (*tmpCmd != '\0') { + cmd[i] = tmpCmd; + i++; + } + } + cmd[i] = NULL; + } + + cmdpath = cmd[0]; + + /* + Interactive shells want to see a dash in argv[0]. This + typically is handled by login, argv will be setup this + way if a dash appears at the front of the command path + (like "-/bin/sh"). + */ + + if (*cmdpath == '-') { + + /* skip over the dash */ + ++cmdpath; + + /* find the last component in the command pathname */ + s = bb_get_last_path_component(cmdpath); + + /* make a new argv[0] */ + if ((cmd[0] = malloc(strlen(s) + 2)) == NULL) { + message(LOG | CONSOLE, bb_msg_memory_exhausted); + cmd[0] = cmdpath; + } else { + cmd[0][0] = '-'; + strcpy(cmd[0] + 1, s); + } + } + + if (a->action & ASKFIRST) { + char c; + /* + * Save memory by not exec-ing anything large (like a shell) + * before the user wants it. This is critical if swap is not + * enabled and the system has low memory. Generally this will + * be run on the second virtual console, and the first will + * be allowed to start a shell or whatever an init script + * specifies. + */ + messageD(LOG, "Waiting for enter to start '%s'" + "(pid %d, terminal %s)\n", + cmdpath, getpid(), a->terminal); + bb_full_write(1, press_enter, sizeof(press_enter) - 1); + while(read(0, &c, 1) == 1 && c != '\n') + ; + } + + /* Log the process name and args */ + message(LOG, "Starting pid %d, console %s: '%s'", + getpid(), a->terminal, cmdpath); + +#if defined CONFIG_FEATURE_INIT_COREDUMPS + if (stat(CORE_ENABLE_FLAG_FILE, &sb) == 0) { + struct rlimit limit; + + limit.rlim_cur = RLIM_INFINITY; + limit.rlim_max = RLIM_INFINITY; + setrlimit(RLIMIT_CORE, &limit); + } +#endif + + /* Now run it. The new program will take over this PID, + * so nothing further in init.c should be run. */ + execv(cmdpath, cmd); + + /* We're still here? Some error happened. */ + message(LOG | CONSOLE, "Bummer, could not run '%s': %m", cmdpath); + _exit(-1); + } + sigprocmask(SIG_SETMASK, &omask, NULL); + return pid; +} + +static int waitfor(const struct init_action *a) +{ + int pid; + int status, wpid; + + pid = run(a); + while (1) { + wpid = wait(&status); + if (wpid > 0 && wpid != pid) { + continue; + } + if (wpid == pid) + break; + } + return wpid; +} + +/* Run all commands of a particular type */ +static void run_actions(int action) +{ + struct init_action *a, *tmp; + + for (a = init_action_list; a; a = tmp) { + tmp = a->next; + if (a->action == action) { + if (a->action & (SYSINIT | WAIT | CTRLALTDEL | SHUTDOWN | RESTART)) { + waitfor(a); + delete_init_action(a); + } else if (a->action & ONCE) { + run(a); + delete_init_action(a); + } else if (a->action & (RESPAWN | ASKFIRST)) { + /* Only run stuff with pid==0. If they have + * a pid, that means it is still running */ + if (a->pid == 0) { + a->pid = run(a); + } + } + } + } +} + +#ifndef DEBUG_INIT +static void init_reboot(unsigned long magic) +{ + pid_t pid; + /* We have to fork here, since the kernel calls do_exit(0) in + * linux/kernel/sys.c, which can cause the machine to panic when + * the init process is killed.... */ + if ((pid = fork()) == 0) { + reboot(magic); + _exit(0); + } + waitpid (pid, NULL, 0); +} + +static void shutdown_system(void) +{ + sigset_t block_signals; + + /* run everything to be run at "shutdown". This is done _prior_ + * to killing everything, in case people wish to use scripts to + * shut things down gracefully... */ + run_actions(SHUTDOWN); + + /* first disable all our signals */ + sigemptyset(&block_signals); + sigaddset(&block_signals, SIGHUP); + sigaddset(&block_signals, SIGCHLD); + sigaddset(&block_signals, SIGUSR1); + sigaddset(&block_signals, SIGUSR2); + sigaddset(&block_signals, SIGINT); + sigaddset(&block_signals, SIGTERM); + sigaddset(&block_signals, SIGCONT); + sigaddset(&block_signals, SIGSTOP); + sigaddset(&block_signals, SIGTSTP); + sigprocmask(SIG_BLOCK, &block_signals, NULL); + + /* Allow Ctrl-Alt-Del to reboot system. */ + init_reboot(RB_ENABLE_CAD); + + message(CONSOLE | LOG, "The system is going down NOW !!"); + sync(); + + /* Send signals to every process _except_ pid 1 */ + message(CONSOLE | LOG, "Sending SIGTERM to all processes."); + kill(-1, SIGTERM); + sleep(1); + sync(); + + message(CONSOLE | LOG, "Sending SIGKILL to all processes."); + kill(-1, SIGKILL); + sleep(1); + + sync(); +} + +static void exec_signal(int sig) +{ + struct init_action *a, *tmp; + sigset_t unblock_signals; + + for (a = init_action_list; a; a = tmp) { + tmp = a->next; + if (a->action & RESTART) { + struct stat sb; + + shutdown_system(); + + /* unblock all signals, blocked in shutdown_system() */ + sigemptyset(&unblock_signals); + sigaddset(&unblock_signals, SIGHUP); + sigaddset(&unblock_signals, SIGCHLD); + sigaddset(&unblock_signals, SIGUSR1); + sigaddset(&unblock_signals, SIGUSR2); + sigaddset(&unblock_signals, SIGINT); + sigaddset(&unblock_signals, SIGTERM); + sigaddset(&unblock_signals, SIGCONT); + sigaddset(&unblock_signals, SIGSTOP); + sigaddset(&unblock_signals, SIGTSTP); + sigprocmask(SIG_UNBLOCK, &unblock_signals, NULL); + + /* Close whatever files are open. */ + close(0); + close(1); + close(2); + + /* Open the new terminal device */ + if ((device_open(a->terminal, O_RDWR)) < 0) { + if (stat(a->terminal, &sb) != 0) { + message(LOG | CONSOLE, "device '%s' does not exist.", a->terminal); + } else { + message(LOG | CONSOLE, "Bummer, can't open %s", a->terminal); + } + halt_signal(SIGUSR1); + } + + /* Make sure the terminal will act fairly normal for us */ + set_term(0); + /* Setup stdout, stderr on the supplied terminal */ + dup(0); + dup(0); + + messageD(CONSOLE | LOG, "Trying to re-exec %s", a->command); + execl(a->command, a->command, NULL); + + message(CONSOLE | LOG, "exec of '%s' failed: %m", + a->command); + sync(); + sleep(2); + init_reboot(RB_HALT_SYSTEM); + loop_forever(); + } + } +} + +static void halt_signal(int sig) +{ + shutdown_system(); + message(CONSOLE | LOG, +#if #cpu(s390) + /* Seems the s390 console is Wierd(tm). */ + "The system is halted. You may reboot now." +#else + "The system is halted. Press Reset or turn off power" +#endif + ); + sync(); + + /* allow time for last message to reach serial console */ + sleep(2); + + if (sig == SIGUSR2) + init_reboot(RB_POWER_OFF); + else + init_reboot(RB_HALT_SYSTEM); + + loop_forever(); +} + +static void reboot_signal(int sig) +{ + shutdown_system(); + message(CONSOLE | LOG, "Please stand by while rebooting the system."); + sync(); + + /* allow time for last message to reach serial console */ + sleep(2); + + init_reboot(RB_AUTOBOOT); + + loop_forever(); +} + +static void ctrlaltdel_signal(int sig) +{ + run_actions(CTRLALTDEL); +} + +/* The SIGSTOP & SIGTSTP handler */ +static void stop_handler(int sig) +{ + int saved_errno = errno; + + got_cont = 0; + while (!got_cont) + pause(); + got_cont = 0; + errno = saved_errno; +} + +/* The SIGCONT handler */ +static void cont_handler(int sig) +{ + got_cont = 1; +} + +/* Reap any zombie processes that are reparented to init */ +static void child_handler(int sig) +{ + int status; + while ( wait3(&status, WNOHANG, NULL) > 0 ); +} + +#endif /* ! DEBUG_INIT */ + +static void new_init_action(int action, char *command, const char *cons) +{ + struct init_action *new_action, *a; + + if (*cons == '\0') + cons = console; + + /* do not run entries if console device is not available */ + if (access(cons, R_OK | W_OK)) + return; + if (strcmp(cons, "/dev/null") == 0 && (action & ASKFIRST)) + return; + + new_action = calloc((size_t) (1), sizeof(struct init_action)); + if (!new_action) { + message(LOG | CONSOLE, "Memory allocation failure"); + loop_forever(); + } + + /* Append to the end of the list */ + for (a = init_action_list; a && a->next; a = a->next) { + /* don't enter action if it's already in the list */ + if ((strcmp(a->command, command) == 0) && + (strcmp(a->terminal, cons) ==0)) { + free(new_action); + return; + } + } + if (a) { + a->next = new_action; + } else { + init_action_list = new_action; + } + strcpy(new_action->command, command); + new_action->action = action; + strcpy(new_action->terminal, cons); +#if 0 /* calloc zeroed always */ + new_action->pid = 0; +#endif + messageD(LOG|CONSOLE, "command='%s' action='%d' terminal='%s'\n", + new_action->command, new_action->action, new_action->terminal); +} + +static void delete_init_action(struct init_action *action) +{ + struct init_action *a, *b = NULL; + + for (a = init_action_list; a; b = a, a = a->next) { + if (a == action) { + if (b == NULL) { + init_action_list = a->next; + } else { + b->next = a->next; + } + free(a); + break; + } + } +} + +/* Make sure there is enough memory to do something useful. * + * Calls "swapon -a" if needed so be sure /etc/fstab is present... */ +static void check_memory(void) +{ + struct stat statBuf; + + if (check_free_memory() > 1000) + return; + +#if !defined(__UCLIBC__) || defined(__UCLIBC_HAS_MMU__) + if (stat("/etc/fstab", &statBuf) == 0) { + /* swapon -a requires /proc typically */ + new_init_action(SYSINIT, "/bin/mount -t proc proc /proc", ""); + /* Try to turn on swap */ + new_init_action(SYSINIT, "/sbin/swapon -a", ""); + run_actions(SYSINIT); /* wait and removing */ + if (check_free_memory() < 1000) + goto goodnight; + } else + goto goodnight; + return; +#endif + + goodnight: + message(CONSOLE, "Sorry, your computer does not have enough memory."); + loop_forever(); +} + +/* NOTE that if CONFIG_FEATURE_USE_INITTAB is NOT defined, + * then parse_inittab() simply adds in some default + * actions(i.e., runs INIT_SCRIPT and then starts a pair + * of "askfirst" shells). If CONFIG_FEATURE_USE_INITTAB + * _is_ defined, but /etc/inittab is missing, this + * results in the same set of default behaviors. + */ +static void parse_inittab(void) +{ +#ifdef CONFIG_FEATURE_USE_INITTAB + FILE *file; + char buf[INIT_BUFFS_SIZE], lineAsRead[INIT_BUFFS_SIZE]; + char tmpConsole[CONSOLE_BUFF_SIZE]; + char *id, *runlev, *action, *command, *eol; + const struct init_action_type *a = actions; + + + file = fopen(INITTAB, "r"); + if (file == NULL) { + /* No inittab file -- set up some default behavior */ +#endif + /* Reboot on Ctrl-Alt-Del */ + new_init_action(CTRLALTDEL, "/sbin/reboot", ""); + /* Umount all filesystems on halt/reboot */ + new_init_action(SHUTDOWN, "/bin/umount -a -r", ""); +#if !defined(__UCLIBC__) || defined(__UCLIBC_HAS_MMU__) + /* Swapoff on halt/reboot */ + new_init_action(SHUTDOWN, "/sbin/swapoff -a", ""); +#endif + /* Prepare to restart init when a HUP is received */ + new_init_action(RESTART, "/sbin/init", ""); + /* Askfirst shell on tty1-4 */ + new_init_action(ASKFIRST, LOGIN_SHELL, ""); + new_init_action(ASKFIRST, LOGIN_SHELL, VC_2); + new_init_action(ASKFIRST, LOGIN_SHELL, VC_3); + new_init_action(ASKFIRST, LOGIN_SHELL, VC_4); + /* sysinit */ + new_init_action(SYSINIT, INIT_SCRIPT, ""); + + return; +#ifdef CONFIG_FEATURE_USE_INITTAB + } + + while (fgets(buf, INIT_BUFFS_SIZE, file) != NULL) { + /* Skip leading spaces */ + for (id = buf; *id == ' ' || *id == '\t'; id++); + + /* Skip the line if it's a comment */ + if (*id == '#' || *id == '\n') + continue; + + /* Trim the trailing \n */ + eol = strrchr(id, '\n'); + if (eol != NULL) + *eol = '\0'; + + /* Keep a copy around for posterity's sake (and error msgs) */ + strcpy(lineAsRead, buf); + + /* Separate the ID field from the runlevels */ + runlev = strchr(id, ':'); + if (runlev == NULL || *(runlev + 1) == '\0') { + message(LOG | CONSOLE, "Bad inittab entry: %s", lineAsRead); + continue; + } else { + *runlev = '\0'; + ++runlev; + } + + /* Separate the runlevels from the action */ + action = strchr(runlev, ':'); + if (action == NULL || *(action + 1) == '\0') { + message(LOG | CONSOLE, "Bad inittab entry: %s", lineAsRead); + continue; + } else { + *action = '\0'; + ++action; + } + + /* Separate the action from the command */ + command = strchr(action, ':'); + if (command == NULL || *(command + 1) == '\0') { + message(LOG | CONSOLE, "Bad inittab entry: %s", lineAsRead); + continue; + } else { + *command = '\0'; + ++command; + } + + /* Ok, now process it */ + for (a = actions; a->name != 0; a++) { + if (strcmp(a->name, action) == 0) { + if (*id != '\0') { + if(strncmp(id, "/dev/", 5) == 0) + id += 5; + strcpy(tmpConsole, "/dev/"); + safe_strncpy(tmpConsole + 5, id, + CONSOLE_BUFF_SIZE - 5); + id = tmpConsole; + } + new_init_action(a->action, command, id); + break; + } + } + if (a->name == 0) { + /* Choke on an unknown action */ + message(LOG | CONSOLE, "Bad inittab entry: %s", lineAsRead); + } + } + fclose(file); + return; +#endif /* CONFIG_FEATURE_USE_INITTAB */ +} + +static void reload_signal(int sig) +{ + message(LOG, "Reloading /etc/inittab"); + parse_inittab(); + run_actions(RESPAWN); + return; +} + +extern int init_main(int argc, char **argv) +{ + struct init_action *a; + pid_t wpid; + int status; + + if (argc > 1 && !strcmp(argv[1], "-q")) { + return kill_init(SIGHUP); + } +#ifndef DEBUG_INIT + /* Expect to be invoked as init with PID=1 or be invoked as linuxrc */ + if (getpid() != 1 +#ifdef CONFIG_FEATURE_INITRD + && strstr(bb_applet_name, "linuxrc") == NULL +#endif + ) { + bb_show_usage(); + } + /* Set up sig handlers -- be sure to + * clear all of these in run() */ + signal(SIGHUP, exec_signal); + signal(SIGUSR1, halt_signal); + signal(SIGUSR2, halt_signal); + signal(SIGINT, ctrlaltdel_signal); + signal(SIGTERM, reboot_signal); + signal(SIGCONT, cont_handler); + signal(SIGSTOP, stop_handler); + signal(SIGTSTP, stop_handler); + signal(SIGCHLD, child_handler); + + /* Turn off rebooting via CTL-ALT-DEL -- we get a + * SIGINT on CAD so we can shut things down gracefully... */ + init_reboot(RB_DISABLE_CAD); +#endif + + /* Figure out where the default console should be */ + console_init(); + + /* Close whatever files are open, and reset the console. */ + close(0); + close(1); + close(2); + + if (device_open(console, O_RDWR | O_NOCTTY) == 0) { + set_term(0); + close(0); + } + + chdir("/"); + setsid(); + { + const char * const *e; + /* Make sure environs is set to something sane */ + for(e = environment; *e; e++) + putenv((char *) *e); + } + /* Hello world */ + message(MAYBE_CONSOLE | LOG, "init started: %s", bb_msg_full_version); + + /* Make sure there is enough memory to do something useful. */ + check_memory(); + + /* Check if we are supposed to be in single user mode */ + if (argc > 1 && (!strcmp(argv[1], "single") || + !strcmp(argv[1], "-s") || !strcmp(argv[1], "1"))) { + /* Start a shell on console */ + new_init_action(RESPAWN, LOGIN_SHELL, ""); + } else { + /* Not in single user mode -- see what inittab says */ + + /* NOTE that if CONFIG_FEATURE_USE_INITTAB is NOT defined, + * then parse_inittab() simply adds in some default + * actions(i.e., runs INIT_SCRIPT and then starts a pair + * of "askfirst" shells */ + parse_inittab(); + } + + /* Make the command line just say "init" -- thats all, nothing else */ + fixup_argv(argc, argv, "init"); + + /* Now run everything that needs to be run */ + + /* First run the sysinit command */ + run_actions(SYSINIT); + + /* Next run anything that wants to block */ + run_actions(WAIT); + + /* Next run anything to be run only once */ + run_actions(ONCE); + + /* If there is nothing else to do, stop */ + if (init_action_list == NULL) { + message(LOG | CONSOLE, + "No more tasks for init -- sleeping forever."); + loop_forever(); + } + + /* Redefine SIGHUP to reread /etc/inittab */ + signal(SIGHUP, reload_signal); + + /* Now run the looping stuff for the rest of forever */ + while (1) { + /* run the respawn stuff */ + run_actions(RESPAWN); + + /* run the askfirst stuff */ + run_actions(ASKFIRST); + + /* Don't consume all CPU time -- sleep a bit */ + sleep(1); + + /* Wait for a child process to exit */ + wpid = wait(&status); + while (wpid > 0) { + /* Find out who died and clean up their corpse */ + for (a = init_action_list; a; a = a->next) { + if (a->pid == wpid) { + /* Set the pid to 0 so that the process gets + * restarted by run_actions() */ + a->pid = 0; + message(LOG, "Process '%s' (pid %d) exited. " + "Scheduling it for restart.", + a->command, wpid); + } + } + /* see if anyone else is waiting to be reaped */ + wpid = waitpid (-1, &status, WNOHANG); + } + } +} + +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/release/src/router/busybox/init/init_shared.c b/release/src/router/busybox/init/init_shared.c new file mode 100644 index 00000000..339add13 --- /dev/null +++ b/release/src/router/busybox/init/init_shared.c @@ -0,0 +1,97 @@ +/* vi: set sw=4 ts=4: */ +/* + * Stuff shared between init, reboot, halt, and poweroff + * + * Copyright (C) 1999-2003 by Erik Andersen + * + * 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 +#include +#include +#include +#include +#include +#include +#include "busybox.h" +#include "init_shared.h" + +extern int kill_init(int sig) +{ +#ifdef CONFIG_FEATURE_INITRD + /* don't assume init's pid == 1 */ + long *pid = find_pid_by_name("init"); + if (!pid || *pid<=0) { + pid = find_pid_by_name("linuxrc"); + if (!pid || *pid<=0) + bb_error_msg_and_die("no process killed"); + } + return(kill(*pid, sig)); +#else + return(kill(1, sig)); +#endif +} + +#ifndef CONFIG_INIT +const char * const bb_shutdown_format = "\r%s\n"; +extern int bb_shutdown_system(unsigned long magic) +{ + int pri = LOG_KERN|LOG_NOTICE|LOG_FACMASK; + const 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(bb_applet_name, 0, pri); + + message = "\nThe system is going down NOW !!"; + syslog(pri, "%s", message); + printf(bb_shutdown_format, message); + + sync(); + + /* Send signals to every process _except_ pid 1 */ + message = "Sending SIGTERM to all processes."; + syslog(pri, "%s", message); + printf(bb_shutdown_format, message); + + kill(-1, SIGTERM); + sleep(1); + sync(); + + message = "Sending SIGKILL to all processes."; + syslog(pri, "%s", message); + printf(bb_shutdown_format, message); + + kill(-1, SIGKILL); + sleep(1); + + sync(); + + reboot(magic); + return 0; /* Shrug */ +} +#endif + diff --git a/release/src/router/busybox/init/init_shared.h b/release/src/router/busybox/init/init_shared.h new file mode 100644 index 00000000..1e4cfac9 --- /dev/null +++ b/release/src/router/busybox/init/init_shared.h @@ -0,0 +1,3 @@ +extern int kill_init(int sig); +extern int bb_shutdown_system(unsigned long magic); + diff --git a/release/src/router/busybox/init/mesg.c b/release/src/router/busybox/init/mesg.c new file mode 100644 index 00000000..7b8acf65 --- /dev/null +++ b/release/src/router/busybox/init/mesg.c @@ -0,0 +1,58 @@ +/* + * mesg implementation for busybox + * + * Copyright (c) 2002 Manuel Novoa III + * + * 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 +#include +#include "libbb.h" + +#ifdef USE_TTY_GROUP +#define S_IWGRP_OR_S_IWOTH S_IWGRP +#else +#define S_IWGRP_OR_S_IWOTH (S_IWGRP | S_IWOTH) +#endif + +extern int mesg_main(int argc, char *argv[]) +{ + struct stat sb; + char *tty; + char c; + + if ((--argc == 0) + || ((argc == 1) && (((c = **++argv) == 'y') || (c == 'n')))) { + if ((tty = ttyname(STDERR_FILENO)) == NULL) { + tty = "ttyname"; + } else if (stat(tty, &sb) == 0) { + if (argc == 0) { + puts(((sb.st_mode & (S_IWGRP | S_IWOTH)) == + 0) ? "is n" : "is y"); + return EXIT_SUCCESS; + } + if (chmod + (tty, + (c == + 'y') ? sb.st_mode | (S_IWGRP_OR_S_IWOTH) : sb. + st_mode & ~(S_IWGRP | S_IWOTH)) == 0) { + return EXIT_SUCCESS; + } + } + bb_perror_msg_and_die("%s", tty); + } + bb_show_usage(); +} diff --git a/release/src/router/busybox/init/minit.c b/release/src/router/busybox/init/minit.c new file mode 100644 index 00000000..6645dc6c --- /dev/null +++ b/release/src/router/busybox/init/minit.c @@ -0,0 +1,612 @@ +/* + * minit version 0.9.1 by Felix von Leitner + * ported to busybox by Glenn McGrath + * + * 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 +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "busybox.h" + +#define MINITROOT "/etc/minit" + +static int i_am_init; +static int infd, outfd; + +extern char **environ; + +static struct process { + char *name; + pid_t pid; + char respawn; + char circular; + time_t startedat; + int __stdin, __stdout; + int logservice; +} *root; + +static int maxprocess = -1; + +static int processalloc = 0; + +static unsigned int fmt_ulong(char *dest, unsigned long i) +{ + register unsigned long len, tmp, len2; + + /* first count the number of bytes needed */ + for (len = 1, tmp = i; tmp > 9; ++len) + tmp /= 10; + if (dest) + for (tmp = i, dest += len, len2 = len + 1; --len2; tmp /= 10) + *--dest = (tmp % 10) + '0'; + return len; +} + +/* split buf into n strings that are separated by c. return n as *len. + * Allocate plus more slots and leave the first ofs of them alone. */ +static char **split(char *buf, int c, int *len, int plus, int ofs) +{ + int n = 1; + char **v = 0; + char **w; + + /* step 1: count tokens */ + char *s; + + for (s = buf; *s; s++) + if (*s == c) + n++; + /* step 2: allocate space for pointers */ + v = (char **) malloc((n + plus) * sizeof(char *)); + if (!v) + return 0; + w = v + ofs; + *w++ = buf; + for (s = buf;; s++) { + while (*s && *s != c) + s++; + if (*s == 0) + break; + if (*s == c) { + *s = 0; + *w++ = s + 1; + } + } + *len = w - v; + return v; +} + +static int openreadclose(char *fn, char **buf, unsigned long *len) +{ + int fd = open(fn, O_RDONLY); + + if (fd < 0) + return -1; + if (!*buf) { + *len = lseek(fd, 0, SEEK_END); + lseek(fd, 0, SEEK_SET); + *buf = (char *) malloc(*len + 1); + if (!*buf) { + close(fd); + return -1; + } + } + *len = read(fd, *buf, *len); + if (*len != (unsigned long) -1) + (*buf)[*len] = 0; + return close(fd); +} + +/* return index of service in process data structure or -1 if not found */ +static int findservice(char *service) +{ + int i; + + for (i = 0; i <= maxprocess; i++) { + if (!strcmp(root[i].name, service)) + return i; + } + return -1; +} + +/* look up process index in data structure by PID */ +static int findbypid(pid_t pid) +{ + int i; + + for (i = 0; i <= maxprocess; i++) { + if (root[i].pid == pid) + return i; + } + return -1; +} + +/* clear circular dependency detection flags */ +static void circsweep(void) +{ + int i; + + for (i = 0; i <= maxprocess; i++) + root[i].circular = 0; +} + +/* add process to data structure, return index or -1 */ +static int addprocess(struct process *p) +{ + if (maxprocess + 1 >= processalloc) { + struct process *fump; + + processalloc += 8; + if ((fump = + (struct process *) xrealloc(root, + processalloc * + sizeof(struct process))) == 0) + return -1; + root = fump; + } + memmove(&root[++maxprocess], p, sizeof(struct process)); + return maxprocess; +} + +/* load a service into the process data structure and return index or -1 + * if failed */ +static int loadservice(char *service) +{ + struct process tmp; + int fd; + + if (*service == 0) + return -1; + fd = findservice(service); + if (fd >= 0) + return fd; + if (chdir(MINITROOT) || chdir(service)) + return -1; + if (!(tmp.name = strdup(service))) + return -1; + tmp.pid = 0; + fd = open("respawn", O_RDONLY); + if (fd >= 0) { + tmp.respawn = 1; + close(fd); + } else + tmp.respawn = 0; + tmp.startedat = 0; + tmp.circular = 0; + tmp.__stdin = 0; + tmp.__stdout = 1; + { + char *logservice = alloca(strlen(service) + 5); + + strcpy(logservice, service); + strcat(logservice, "/log"); + tmp.logservice = loadservice(logservice); + if (tmp.logservice >= 0) { + int pipefd[2]; + + if (pipe(pipefd)) + return -1; + root[tmp.logservice].__stdin = pipefd[0]; + tmp.__stdout = pipefd[1]; + } + } + return (addprocess(&tmp)); +} + +/* usage: isup(findservice("sshd")). + * returns nonzero if process is up */ +static int isup(int service) +{ + if (service < 0) + return 0; + return (root[service].pid != 0); +} + +static void opendevconsole(void) +{ + int fd; + + if ((fd = open("/dev/console", O_RDWR | O_NOCTTY)) >= 0) { + dup2(fd, 0); + dup2(fd, 1); + dup2(fd, 2); + if (fd > 2) + close(fd); + } +} + +/* called from inside the service directory, return the PID or 0 on error */ +static pid_t forkandexec(int pause_flag, int service) +{ + char **argv = 0; + int count = 0; + pid_t p; + int fd; + unsigned long len; + char *s = 0; + int argc; + char *argv0 = 0; + + again: + switch (p = fork()) { + case (pid_t) - 1: + if (count > 3) + return 0; + sleep(++count * 2); + goto again; + case 0: + /* child */ + + if (i_am_init) { + ioctl(0, TIOCNOTTY, 0); + setsid(); + opendevconsole(); + tcsetpgrp(0, getpgrp()); + } + close(infd); + close(outfd); + if (pause_flag) { + struct timespec req; + + req.tv_sec = 0; + req.tv_nsec = 500000000; + nanosleep(&req, 0); + } + if (!openreadclose("params", &s, &len)) { + argv = split(s, '\n', &argc, 2, 1); + if (argv[argc - 1]) + argv[argc - 1] = 0; + else + argv[argc] = 0; + } else { + argv = (char **) xmalloc(2 * sizeof(char *)); + argv[1] = 0; + } + argv0 = (char *) xmalloc(PATH_MAX + 1); + if (!argv || !argv0) + goto abort; + if (readlink("run", argv0, PATH_MAX) < 0) { + if (errno != EINVAL) + goto abort; /* not a symbolic link */ + argv0 = strdup("./run"); + } + argv[0] = strrchr(argv0, '/'); + if (argv[0]) + argv[0]++; + else + argv[0] = argv0; + if (root[service].__stdin != 0) + dup2(root[service].__stdin, 0); + if (root[service].__stdout != 1) { + dup2(root[service].__stdout, 1); + dup2(root[service].__stdout, 2); + } + { + int i; + + for (i = 3; i < 1024; ++i) + close(i); + } + execve(argv0, argv, environ); + _exit(0); + abort: + free(argv0); + free(argv); + _exit(0); + default: + fd = open("sync", O_RDONLY); + if (fd >= 0) { + pid_t p2; + + close(fd); + p2 = waitpid(p, 0, 0); + return 1; + } + return p; + } +} + +/* start a service, return nonzero on error */ +static int startnodep(int service, int pause_flag) +{ + /* step 1: see if the process is already up */ + if (isup(service)) + return 0; + + /* step 2: fork and exec service, put PID in data structure */ + if (chdir(MINITROOT) || chdir(root[service].name)) + return -1; + root[service].startedat = time(0); + root[service].pid = forkandexec(pause_flag, service); + return root[service].pid; +} + +static int startservice(int service, int pause_flag) +{ + int dir = -1; + unsigned long len; + char *s = 0; + pid_t pid; + + if (service < 0) + return 0; + if (root[service].circular) + return 0; + root[service].circular = 1; + if (root[service].logservice >= 0) + startservice(root[service].logservice, pause_flag); + if (chdir(MINITROOT) || chdir(root[service].name)) + return -1; + if ((dir = open(".", O_RDONLY)) >= 0) { + if (!openreadclose("depends", &s, &len)) { + char **deps; + int depc, i; + + deps = split(s, '\n', &depc, 0, 0); + for (i = 0; i < depc; i++) { + int service_index; + + if (deps[i][0] == '#') + continue; + service_index = loadservice(deps[i]); + if (service_index >= 0 && root[service_index].pid != 1) + startservice(service_index, 0); + } + fchdir(dir); + } + pid = startnodep(service, pause_flag); + close(dir); + dir = -1; + return pid; + } + return 0; +} + +static void sulogin(void) +{ + /* exiting on an initialization failure is not a good idea for init */ + char *argv[] = { "sulogin", 0 }; + execve("/sbin/sulogin", argv, environ); + exit(1); +} + +static void handlekilled(pid_t killed) +{ + int i; + + if (killed == (pid_t) - 1) { + write(2, "all services exited.\n", 21); + exit(0); + } + if (killed == 0) + return; + i = findbypid(killed); + if (i >= 0) { + root[i].pid = 0; + if (root[i].respawn) { + circsweep(); + startservice(i, time(0) - root[i].startedat < 1); + } else { + root[i].startedat = time(0); + root[i].pid = 1; + } + } +} + +static void childhandler(void) +{ + int status; + pid_t killed; + + do { + killed = waitpid(-1, &status, WNOHANG); + handlekilled(killed); + } while (killed && killed != (pid_t) - 1); +} + +static volatile int dowinch = 0; +static volatile int doint = 0; + +static void sigchild(int whatever) +{ +} +static void sigwinch(int sig) +{ + dowinch = 1; +} +static void sigint(int sig) +{ + doint = 1; +} + +extern int minit_main(int argc, char *argv[]) +{ + /* Schritt 1: argv[1] als Service nehmen und starten */ + struct pollfd pfd; + time_t last = time(0); + int nfds = 1; + int count = 0; + int i; + + infd = open("/etc/minit/in", O_RDWR); + outfd = open("/etc/minit/out", O_RDWR | O_NONBLOCK); + if (getpid() == 1) { + int fd; + + i_am_init = 1; + reboot(0); + if ((fd = open("/dev/console", O_RDWR | O_NOCTTY))) { + ioctl(fd, KDSIGACCEPT, SIGWINCH); + close(fd); + } else + ioctl(0, KDSIGACCEPT, SIGWINCH); + } +/* signal(SIGPWR,sighandler); don't know what to do about it */ +/* signal(SIGHUP,sighandler); ??? */ + { + struct sigaction sa; + + sigemptyset(&sa.sa_mask); + sa.sa_sigaction = 0; + sa.sa_flags = SA_RESTART | SA_NOCLDSTOP; + sa.sa_handler = sigchild; + sigaction(SIGCHLD, &sa, 0); + sa.sa_handler = sigint; + sigaction(SIGINT, &sa, 0); /* ctrl-alt-del */ + sa.sa_handler = sigwinch; + sigaction(SIGWINCH, &sa, 0); /* keyboard request */ + } + if (infd < 0 || outfd < 0) { + puts("minit: could not open /etc/minit/in or /etc/minit/out\n"); + sulogin(); + nfds = 0; + } else + pfd.fd = infd; + pfd.events = POLLIN; + + for (i = 1; i < argc; i++) { + circsweep(); + if (startservice(loadservice(argv[i]), 0)) + count++; + } + circsweep(); + if (!count) + startservice(loadservice("default"), 0); + for (;;) { + char buf[1501]; + time_t now; + + if (doint) { + doint = 0; + startservice(loadservice("ctrlaltdel"), 0); + } + if (dowinch) { + dowinch = 0; + startservice(loadservice("kbreq"), 0); + } + childhandler(); + now = time(0); + if (now < last || now - last > 30) { + /* The system clock was reset. Compensate. */ + long diff = last - now; + int j; + + for (j = 0; j <= maxprocess; ++j) { + root[j].startedat -= diff; + } + } + last = now; + switch (poll(&pfd, nfds, 5000)) { + case -1: + if (errno == EINTR) { + childhandler(); + break; + } + opendevconsole(); + puts("poll failed!\n"); + sulogin(); + /* what should we do if poll fails?! */ + break; + case 1: + i = read(infd, buf, 1500); + if (i > 1) { + pid_t pid; + int idx = 0; + int tmp; + + buf[i] = 0; + + if (buf[0] != 's' && ((idx = findservice(buf + 1)) < 0)) + error: + write(outfd, "0", 1); + else { + switch (buf[0]) { + case 'p': + write(outfd, buf, fmt_ulong(buf, root[idx].pid)); + break; + case 'r': + root[idx].respawn = 0; + goto ok; + case 'R': + root[idx].respawn = 1; + goto ok; + case 'C': + if (kill(root[idx].pid, 0)) { /* check if still active */ + handlekilled(root[idx].pid); /* no!?! remove form active list */ + goto error; + } + goto ok; + break; + case 'P': + { + unsigned char *x = buf + strlen(buf) + 1; + unsigned char c; + + tmp = 0; + while ((c = *x++ - '0') < 10) + tmp = tmp * 10 + c; + } + if (tmp > 0) { + if (kill(tmp, 0)) + goto error; + pid = tmp; + } + root[idx].pid = tmp; + goto ok; + case 's': + idx = loadservice(buf + 1); + if (idx < 0) + goto error; + if (root[idx].pid < 2) { + root[idx].pid = 0; + circsweep(); + idx = startservice(idx, 0); + if (idx == 0) { + write(outfd, "0", 1); + break; + } + } + ok: + write(outfd, "1", 1); + break; + case 'u': + write(outfd, buf, + fmt_ulong(buf, time(0) - root[idx].startedat)); + } + } + } + break; + default: + break; + } + } +} diff --git a/release/src/router/busybox/init/msvc.c b/release/src/router/busybox/init/msvc.c new file mode 100644 index 00000000..d72ddce1 --- /dev/null +++ b/release/src/router/busybox/init/msvc.c @@ -0,0 +1,300 @@ +/* + * minit version 0.9.1 by Felix von Leitner + * ported to busybox by Glenn McGrath + * + * 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 +#include +#include +#include +#include +#include +#include + +#include "busybox.h" + +static int infd, outfd; + +static char buf[1500]; + +static unsigned int fmt_ulong(char *dest, unsigned long i) +{ + register unsigned long len, tmp, len2; + + /* first count the number of bytes needed */ + for (len = 1, tmp = i; tmp > 9; ++len) + tmp /= 10; + if (dest) + for (tmp = i, dest += len, len2 = len + 1; --len2; tmp /= 10) + *--dest = (tmp % 10) + '0'; + return len; +} + +static void addservice(char *service) +{ + char *service_ptr; + + if (strncmp(service, "/etc/minit/", 11) == 0) { + service += 11; + } + + while ((service_ptr = last_char_is(service, '/')) != NULL) { + *service_ptr = 0; + } + strncpy(buf + 1, service, 1400); + buf[1400] = 0; +} + +static int addreadwrite(char *service) +{ + addservice(service); + write(infd, buf, strlen(buf)); + return read(outfd, buf, 1500); +} + +/* return PID, 0 if error */ +static pid_t __readpid(char *service) +{ + int len; + + buf[0] = 'p'; + len = addreadwrite(service); + if (len < 0) + return 0; + buf[len] = 0; + return atoi(buf); +} + +/* return nonzero if error */ +static int respawn(char *service, int yesno) +{ + int len; + + buf[0] = yesno ? 'R' : 'r'; + len = addreadwrite(service); + return (len != 1 || buf[0] == '0'); +} + +/* return nonzero if error */ +static int startservice(char *service) +{ + int len; + + buf[0] = 's'; + len = addreadwrite(service); + return (len != 1 || buf[0] == '0'); +} + +extern int msvc_main(int argc, char **argv) +{ + if (argc < 2) { + bb_show_usage(); + } + infd = bb_xopen("/etc/minit/in", O_WRONLY); + outfd = bb_xopen("/etc/minit/out", O_RDONLY); + + while (lockf(infd, F_LOCK, 1)) { + bb_perror_msg("could not aquire lock!\n"); + sleep(1); + } + + if (argc == 2) { + pid_t pid = __readpid(argv[1]); + + if (buf[0] != '0') { + int len; + int up_time; + + printf("%s: ", argv[1]); + if (pid == 0) + printf("down "); + else if (pid == 1) + printf("finished "); + else { + printf("up (pid %d) ", pid); + } + + buf[0] = 'u'; + len = addreadwrite(argv[1]); + if (len < 0) { + up_time = 0; + } else { + buf[len] = 0; + up_time = atoi(buf); + } + printf("%d seconds\n", up_time); + + if (pid == 0) + return 2; + else if (pid == 1) + return 3; + else + return 0; + } else { + bb_error_msg_and_die("no such service"); + } + } else { + int i; + int ret = 0; + int sig = 0; + pid_t pid; + + if (argv[1][0] == '-') { + switch (argv[1][1]) { + case 'g': + for (i = 2; i < argc; ++i) { + pid = __readpid(argv[i]); + if (pid < 2) { + if (pid == 1) { + bb_error_msg("%s, service termination", argv[i]); + } else { + bb_error_msg("%s, no such service", argv[i]); + } + ret = 1; + } + printf("%d\n", pid); + } + break; + case 'p': + sig = SIGSTOP; + goto dokill; + break; + case 'c': + sig = SIGCONT; + goto dokill; + break; + case 'h': + sig = SIGHUP; + goto dokill; + break; + case 'a': + sig = SIGALRM; + goto dokill; + break; + case 'i': + sig = SIGINT; + goto dokill; + break; + case 't': + sig = SIGTERM; + goto dokill; + break; + case 'k': + sig = SIGKILL; + goto dokill; + break; + case 'o': + for (i = 2; i < argc; ++i) + if (startservice(argv[i]) || respawn(argv[i], 0)) { + bb_error_msg("Couldnt not start %s\n", argv[i]); + ret = 1; + } + break; + case 'd': + for (i = 2; i < argc; ++i) { + pid = __readpid(argv[i]); + if (pid == 0) { + bb_error_msg("%s, no such service\n", argv[i]); + ret = 1; + } else if (pid == 1) + continue; + if (respawn(argv[i], 0) || kill(pid, SIGTERM) + || kill(pid, SIGCONT)); + } + break; + case 'u': + for (i = 2; i < argc; ++i) { + if (startservice(argv[i]) || respawn(argv[i], 1)) { + bb_error_msg("Couldnt not start %s\n", argv[i]); + ret = 1; + } + break; + } + case 'C': + for (i = 2; i < argc; ++i) { + int len; + + buf[0] = 'C'; + len = addreadwrite(argv[i]); + if (len != 1 || buf[0] == '0') { + bb_error_msg("%s has terminated or was killed\n", + argv[i]); + ret = 1; + } + } + break; + case 'P': + pid = atoi(argv[1] + 2); + if (pid > 1) { + char *tmp; + int len; + + buf[0] = 'P'; + addservice(argv[2]); + tmp = buf + strlen(buf) + 1; + tmp[fmt_ulong(tmp, pid)] = 0; + write(infd, buf, strlen(buf) + strlen(tmp) + 2); + len = read(outfd, buf, 1500); + if (len != 1 || buf[0] == '0') { + bb_error_msg_and_die("Couldnt not set pid of service %s\n", argv[2]); + } + } + break; + default: + bb_show_usage(); + } + } else { + bb_show_usage(); + } + return ret; +dokill: + for (i = 2; i < argc; i++) { + pid = __readpid(argv[i]); + if (!pid) { + bb_error_msg("%s no such service\n", argv[i]); + ret = 1; + } + if (kill(pid, sig)) { + bb_error_msg("%s, could not send signal %d to PID %d\n", + argv[i], sig, pid); + ret = 1; + } + } + return ret; + } +} + +/* + -u Up. If the service is not running, start it. If the service stops, + restart it. + -d Down. If the service is running, send it a TERM signal and then a CONT + signal. After it stops, do not restart it. + -o Once. If the service is not running, start it. Do not restart it if it + stops. + -r Tell supervise that the service is normally running; this affects status + messages. + -s Tell supervise that the service is normally stopped; this affects status + messages. + -p Pause. Send the service a STOP signal. + -c Continue. Send the service a CONT signal. + -h Hangup. Send the service a HUP signal. + -a Alarm. Send the service an ALRM signal. + -i Interrupt. Send the service an INT signal. + -t Terminate. Send the service a TERM signal. + -k Kill. Send the service a KILL signal. + -x Exit. supervise will quit as soon as the service is down. +*/ diff --git a/release/src/router/busybox/init/pidfilehack.c b/release/src/router/busybox/init/pidfilehack.c new file mode 100644 index 00000000..a2d905b5 --- /dev/null +++ b/release/src/router/busybox/init/pidfilehack.c @@ -0,0 +1,78 @@ +/* + * minit version 0.9.1 by Felix von Leitner + * ported to busybox by Glenn McGrath + * + * 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 +#include +#include +#include + +#include "busybox.h" +/* purpose: argv[1] is the full path to a PID file, + * argv+2 is the daemon to run. + * the daemon is expected to fork in the background and write its PID in + * the pid file. + */ + +extern int pidfilehack_main(int argc, char **argv) +{ + int count = 0; + + if (argc < 3) { + bb_show_usage(); + + } + if (unlink(argv[2]) && (errno != ENOENT)) { + bb_perror_msg("could not remove pid file"); + } + switch (fork()) { + case -1: + bb_perror_msg("could not fork"); + return 2; + case 0: /* child */ + execv(argv[3], argv + 3); + bb_perror_msg("execvp failed"); + return 3; + } + do { + int fd = open(argv[2], O_RDONLY); + + if (fd >= 0) { + static char buf[100] = "-P"; + int len = read(fd, buf + 2, 100); + + close(fd); + if (len > 0) { + char *_argv[] = { "msvc", 0, 0, 0 }; + if (buf[len + 1] == '\n') { + buf[len + 1] = 0; + } else { + buf[len + 2] = 0; + } + _argv[1] = buf; + _argv[2] = argv[1]; + execvp(_argv[0], _argv); + bb_perror_msg("execvp failed"); + return 0; + } + } + sleep(1); + } while (++count < 30); + + return(0); +} diff --git a/release/src/router/busybox/init/poweroff.c b/release/src/router/busybox/init/poweroff.c new file mode 100644 index 00000000..e5d45dfa --- /dev/null +++ b/release/src/router/busybox/init/poweroff.c @@ -0,0 +1,56 @@ +/* vi: set sw=4 ts=4: */ +/* + * Mini poweroff implementation for busybox + * + * Copyright (C) 1999-2003 by Erik Andersen + * + * 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 +#include +#include +#include +#include +#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/release/src/router/busybox/init/reboot.c b/release/src/router/busybox/init/reboot.c new file mode 100644 index 00000000..185152a7 --- /dev/null +++ b/release/src/router/busybox/init/reboot.c @@ -0,0 +1,56 @@ +/* vi: set sw=4 ts=4: */ +/* + * Mini reboot implementation for busybox + * + * Copyright (C) 1999-2003 by Erik Andersen + * + * 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 +#include +#include +#include +#include +#include "busybox.h" +#include "init_shared.h" + + +extern int reboot_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_AUTOBOOT +#define RB_AUTOBOOT 0x01234567 +#endif + return(bb_shutdown_system(RB_AUTOBOOT)); +#else + return kill_init(SIGTERM); +#endif +} + +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ -- cgit v1.2.3-54-g00ecf