* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
* 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
- *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
/* Turn this on to disable all the dangerous
#include <termios.h>
#include <unistd.h>
#include <limits.h>
-#include <sys/fcntl.h>
+#include <fcntl.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/wait.h>
#endif
+#ifdef CONFIG_SELINUX
+# include <selinux/selinux.h>
+#endif /* CONFIG_SELINUX */
+
+
#define INIT_BUFFS_SIZE 256
/* From <linux/vt.h> */
unsigned short v_signal; /* signal to send */
unsigned short v_state; /* vt bitmask */
};
-static const int VT_GETSTATE = 0x5603; /* get global vt state info */
+enum { VT_GETSTATE = 0x5603 }; /* get global vt state info */
/* From <linux/serial.h> */
struct serial_struct {
static char *log_console = VC_5;
#endif
static sig_atomic_t got_cont = 0;
-static const int LOG = 0x1;
-static const int CONSOLE = 0x2;
+
+enum {
+ LOG = 0x1,
+ CONSOLE = 0x2,
#if defined CONFIG_FEATURE_EXTRA_QUIET
-static const int MAYBE_CONSOLE = 0x0;
+ MAYBE_CONSOLE = 0x0,
#else
-#define MAYBE_CONSOLE CONSOLE
+ 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;
+#ifndef RB_HALT_SYSTEM
+ RB_HALT_SYSTEM = 0xcdef0123,
+ RB_ENABLE_CAD = 0x89abcdef,
+ RB_DISABLE_CAD = 0,
+ RB_POWER_OFF = 0x4321fedc,
+ RB_AUTOBOOT = 0x01234567,
#endif
+};
static const char * const environment[] = {
"HOME=/",
/* 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, ...)
+static inline void messageD(int ATTRIBUTE_UNUSED device,
+ const char ATTRIBUTE_UNUSED *fmt, ...)
{
}
#else
if (device & LOG) {
/* don`t out "\r\n" */
openlog(bb_applet_name, 0, LOG_DAEMON);
- syslog(LOG_INFO, "%s", msg);
+ syslog(LOG_INFO, "%s", msg + 1);
closelog();
}
#ifndef CONFIG_SYSLOGD
log_console =
#endif
- safe_strncpy(console, "/dev/null", sizeof(console));
+ safe_strncpy(console, bb_dev_null, sizeof(console));
} else {
s = getenv("TERM");
/* check for serial console */
break;
}
/* FIXME handle other errors */
- }
+ }
/* See if stealing the controlling tty back is necessary */
pgrp = tcgetpgrp(0);
for (a = init_action_list; a; a = tmp) {
tmp = a->next;
if (a->action == action) {
- if (a->action & (SYSINIT | WAIT | CTRLALTDEL | SHUTDOWN | RESTART)) {
+ if (access(a->terminal, R_OK | W_OK)) {
+ delete_init_action(a);
+ } else if (a->action & (SYSINIT | WAIT | CTRLALTDEL | SHUTDOWN | RESTART)) {
waitfor(a);
delete_init_action(a);
} else if (a->action & ONCE) {
sync();
}
-static void exec_signal(int sig)
+static void exec_signal(int sig ATTRIBUTE_UNUSED)
{
struct init_action *a, *tmp;
sigset_t unblock_signals;
}
}
-static void halt_signal(int sig)
+static void halt_signal(int sig ATTRIBUTE_UNUSED)
{
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
- );
+ message(CONSOLE | LOG, "The system is halted.");
sync();
/* allow time for last message to reach serial console */
loop_forever();
}
-static void reboot_signal(int sig)
+static void reboot_signal(int sig ATTRIBUTE_UNUSED)
{
shutdown_system();
message(CONSOLE | LOG, "Please stand by while rebooting the system.");
loop_forever();
}
-static void ctrlaltdel_signal(int sig)
+static void ctrlaltdel_signal(int sig ATTRIBUTE_UNUSED)
{
run_actions(CTRLALTDEL);
}
/* The SIGSTOP & SIGTSTP handler */
-static void stop_handler(int sig)
+static void stop_handler(int sig ATTRIBUTE_UNUSED)
{
int saved_errno = errno;
}
/* The SIGCONT handler */
-static void cont_handler(int sig)
+static void cont_handler(int sig ATTRIBUTE_UNUSED)
{
got_cont = 1;
}
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))
+ if (strcmp(cons, bb_dev_null) == 0 && (action & ASKFIRST))
return;
new_action = calloc((size_t) (1), sizeof(struct init_action));
}
#ifdef CONFIG_FEATURE_USE_INITTAB
-static void reload_signal(int sig)
+static void reload_signal(int sig ATTRIBUTE_UNUSED)
{
struct init_action *a, *tmp;
}
#endif /* CONFIG_FEATURE_USE_INITTAB */
-extern int init_main(int argc, char **argv)
+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);
+ return kill(1,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
- ) {
+ if (getpid() != 1 &&
+ (!ENABLE_FEATURE_INITRD || !strstr(bb_applet_name, "linuxrc")))
+ {
bb_show_usage();
}
/* Set up sig handlers -- be sure to
parse_inittab();
}
+#ifdef CONFIG_SELINUX
+ if (getenv("SELINUX_INIT") == NULL) {
+ int enforce = 0;
+
+ putenv("SELINUX_INIT=YES");
+ if (selinux_init_load_policy(&enforce) == 0) {
+ execv(argv[0], argv);
+ } else if (enforce > 0) {
+ /* SELinux in enforcing mode but load_policy failed */
+ /* At this point, we probably can't open /dev/console, so log() won't work */
+ message(CONSOLE,"Unable to load SELinux Policy. Machine is in enforcing mode. Halting now.");
+ exit(1);
+ }
+ }
+#endif /* CONFIG_SELINUX */
+
/* Make the command line just say "init" -- thats all, nothing else */
fixup_argv(argc, argv, "init");
projects / oweals / busybox.git / blobdiff