#include "hwclock.h"
#include "selinux-setup.h"
#include "ima-setup.h"
+#include "sd-daemon.h"
static enum {
ACTION_RUN,
} arg_action = ACTION_RUN;
static char *arg_default_unit = NULL;
-static ManagerRunningAs arg_running_as = _MANAGER_RUNNING_AS_INVALID;
+static SystemdRunningAs arg_running_as = _SYSTEMD_RUNNING_AS_INVALID;
static bool arg_dump_core = true;
static bool arg_crash_shell = false;
const char *fn;
int r;
- fn = arg_running_as == MANAGER_SYSTEM ? SYSTEM_CONFIG_FILE : USER_CONFIG_FILE;
+ fn = arg_running_as == SYSTEMD_SYSTEM ? SYSTEM_CONFIG_FILE : USER_CONFIG_FILE;
f = fopen(fn, "re");
if (!f) {
if (errno == ENOENT)
}
r = parse_proc_cmdline_word(word);
- free(word);
-
if (r < 0) {
log_error("Failed on cmdline argument %s: %s", word, strerror(-r));
+ free(word);
goto finish;
}
+
+ free(word);
}
r = 0;
break;
case ARG_SYSTEM:
- arg_running_as = MANAGER_SYSTEM;
+ arg_running_as = SYSTEMD_SYSTEM;
break;
case ARG_USER:
- arg_running_as = MANAGER_USER;
+ arg_running_as = SYSTEMD_USER;
break;
case ARG_TEST:
return r;
}
+static int bump_rlimit_nofile(struct rlimit *saved_rlimit) {
+ struct rlimit nl;
+ int r;
+
+ assert(saved_rlimit);
+
+ /* Save the original RLIMIT_NOFILE so that we can reset it
+ * later when transitioning from the initrd to the main
+ * systemd or suchlike. */
+ if (getrlimit(RLIMIT_NOFILE, saved_rlimit) < 0) {
+ log_error("Reading RLIMIT_NOFILE failed: %m");
+ return -errno;
+ }
+
+ /* Make sure forked processes get the default kernel setting */
+ if (!arg_default_rlimit[RLIMIT_NOFILE]) {
+ struct rlimit *rl;
+
+ rl = newdup(struct rlimit, saved_rlimit, 1);
+ if (!rl)
+ return log_oom();
+
+ arg_default_rlimit[RLIMIT_NOFILE] = rl;
+ }
+
+ /* Bump up the resource limit for ourselves substantially */
+ nl.rlim_cur = nl.rlim_max = 64*1024;
+ r = setrlimit_closest(RLIMIT_NOFILE, &nl);
+ if (r < 0) {
+ log_error("Setting RLIMIT_NOFILE failed: %s", strerror(-r));
+ return r;
+ }
+
+ return 0;
+}
+
static struct dual_timestamp* parse_initrd_timestamp(struct dual_timestamp *t) {
const char *e;
unsigned long long a, b;
sleep(10);
}
+static int initialize_join_controllers(void) {
+ /* By default, mount "cpu" + "cpuacct" together, and "net_cls"
+ * + "net_prio". We'd like to add "cpuset" to the mix, but
+ * "cpuset" does't really work for groups with no initialized
+ * attributes. */
+
+ arg_join_controllers = new(char**, 3);
+ if (!arg_join_controllers)
+ return -ENOMEM;
+
+ arg_join_controllers[0] = strv_new("cpu", "cpuacct", NULL);
+ if (!arg_join_controllers[0])
+ return -ENOMEM;
+
+ arg_join_controllers[1] = strv_new("net_cls", "net_prio", NULL);
+ if (!arg_join_controllers[1])
+ return -ENOMEM;
+
+ arg_join_controllers[2] = NULL;
+ return 0;
+}
+
int main(int argc, char *argv[]) {
Manager *m = NULL;
int r, retval = EXIT_FAILURE;
bool arm_reboot_watchdog = false;
bool queue_default_job = false;
char *switch_root_dir = NULL, *switch_root_init = NULL;
+ static struct rlimit saved_rlimit_nofile = { 0, 0 };
#ifdef HAVE_SYSV_COMPAT
if (getpid() != 1 && strstr(program_invocation_short_name, "init")) {
saved_argc = argc;
log_show_color(isatty(STDERR_FILENO) > 0);
- log_show_location(false);
- log_set_max_level(LOG_INFO);
- if (getpid() == 1) {
+ if (getpid() == 1 && detect_container(NULL) <= 0) {
+
+ /* Running outside of a container as PID 1 */
+ arg_running_as = SYSTEMD_SYSTEM;
+ make_null_stdio();
+ log_set_target(LOG_TARGET_KMSG);
+ log_open();
+
if (in_initrd()) {
char *rd_timestamp = NULL;
}
}
- arg_running_as = MANAGER_SYSTEM;
- log_set_target(detect_container(NULL) > 0 ? LOG_TARGET_JOURNAL : LOG_TARGET_JOURNAL_OR_KMSG);
-
if (!skip_setup) {
if (selinux_setup(&loaded_policy) < 0)
goto finish;
goto finish;
}
- log_open();
-
if (label_init(NULL) < 0)
goto finish;
- if (!skip_setup)
+ if (!skip_setup) {
if (hwclock_is_localtime() > 0) {
int min;
- r = hwclock_apply_localtime_delta(&min);
+ /* The first-time call to settimeofday() does a time warp in the kernel */
+ r = hwclock_set_timezone(&min);
if (r < 0)
log_error("Failed to apply local time delta, ignoring: %s", strerror(-r));
else
log_info("RTC configured in localtime, applying delta of %i minutes to system time.", min);
+ } else if (!in_initrd()) {
+ /*
+ * Do dummy first-time call to seal the kernel's time warp magic
+ *
+ * Do not call this this from inside the initrd. The initrd might not
+ * carry /etc/adjtime with LOCAL, but the real system could be set up
+ * that way. In such case, we need to delay the time-warp or the sealing
+ * until we reach the real system.
+ */
+ hwclock_reset_timezone();
+
+ /* Tell the kernel our time zone */
+ r = hwclock_set_timezone(NULL);
+ if (r < 0)
+ log_error("Failed to set the kernel's time zone, ignoring: %s", strerror(-r));
}
+ }
+
+ /* Set the default for later on, but don't actually
+ * open the logs like this for now. Note that if we
+ * are transitioning from the initrd there might still
+ * be journal fd open, and we shouldn't attempt
+ * opening that before we parsed /proc/cmdline which
+ * might redirect output elsewhere. */
+ log_set_target(LOG_TARGET_JOURNAL_OR_KMSG);
+
+ } else if (getpid() == 1) {
+
+ /* Running inside a container, as PID 1 */
+ arg_running_as = SYSTEMD_SYSTEM;
+ log_set_target(LOG_TARGET_CONSOLE);
+ log_open();
+
+ /* For the later on, see above... */
+ log_set_target(LOG_TARGET_JOURNAL);
} else {
- arg_running_as = MANAGER_USER;
+
+ /* Running as user instance */
+ arg_running_as = SYSTEMD_USER;
log_set_target(LOG_TARGET_AUTO);
log_open();
}
/* Initialize default unit */
- if (r == set_default_unit(SPECIAL_DEFAULT_TARGET) < 0) {
+ r = set_default_unit(SPECIAL_DEFAULT_TARGET);
+ if (r < 0) {
log_error("Failed to set default unit %s: %s", SPECIAL_DEFAULT_TARGET, strerror(-r));
goto finish;
}
- /* By default, mount "cpu" and "cpuacct" together */
- arg_join_controllers = new(char**, 2);
- if (!arg_join_controllers)
- goto finish;
-
- arg_join_controllers[0] = strv_new("cpu", "cpuacct", NULL);
- arg_join_controllers[1] = NULL;
-
- if (!arg_join_controllers[0])
+ r = initialize_join_controllers();
+ if (r < 0)
goto finish;
/* Mount /proc, /sys and friends, so that /proc/cmdline and
if (parse_config_file() < 0)
goto finish;
- if (arg_running_as == MANAGER_SYSTEM)
+ if (arg_running_as == SYSTEMD_SYSTEM)
if (parse_proc_cmdline() < 0)
goto finish;
if (parse_argv(argc, argv) < 0)
goto finish;
- if (arg_action == ACTION_TEST && geteuid() == 0) {
+ if (arg_action == ACTION_TEST &&
+ geteuid() == 0) {
log_error("Don't run test mode as root.");
goto finish;
}
- if (arg_running_as == MANAGER_SYSTEM &&
+ if (arg_running_as == SYSTEMD_USER &&
+ arg_action == ACTION_RUN &&
+ sd_booted() <= 0) {
+ log_error("Trying to run as user instance, but the system has not been booted with systemd.");
+ goto finish;
+ }
+
+ if (arg_running_as == SYSTEMD_SYSTEM &&
arg_action == ACTION_RUN &&
running_in_chroot() > 0) {
log_error("Cannot be run in a chroot() environment.");
#else
"/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin",
#endif
- arg_running_as == MANAGER_SYSTEM);
+ arg_running_as == SYSTEMD_SYSTEM);
- if (arg_running_as == MANAGER_SYSTEM) {
+ if (arg_running_as == SYSTEMD_SYSTEM) {
/* Parse the data passed to us. We leave this
* variables set, but the manager later on will not
* pass them on to our children. */
/* Move out of the way, so that we won't block unmounts */
assert_se(chdir("/") == 0);
- if (arg_running_as == MANAGER_SYSTEM) {
+ if (arg_running_as == SYSTEMD_SYSTEM) {
/* Become a session leader if we aren't one yet. */
setsid();
/* Reset the console, but only if this is really init and we
* are freshly booted */
- if (arg_running_as == MANAGER_SYSTEM && arg_action == ACTION_RUN) {
+ if (arg_running_as == SYSTEMD_SYSTEM && arg_action == ACTION_RUN)
console_setup(getpid() == 1 && !skip_setup);
- make_null_stdio();
- }
/* Open the logging devices, if possible and necessary */
log_open();
goto finish;
}
- if (arg_running_as == MANAGER_SYSTEM) {
+ if (arg_running_as == SYSTEMD_SYSTEM) {
const char *virtualization = NULL;
log_info(PACKAGE_STRING " running in system mode. (" SYSTEMD_FEATURES "; " DISTRIBUTION ")");
} else
log_debug(PACKAGE_STRING " running in user mode. (" SYSTEMD_FEATURES "; " DISTRIBUTION ")");
- if (arg_running_as == MANAGER_SYSTEM && !skip_setup) {
+ if (arg_running_as == SYSTEMD_SYSTEM && !skip_setup) {
locale_setup();
if (arg_show_status || plymouth_running())
test_cgroups();
}
- if (arg_running_as == MANAGER_SYSTEM && arg_runtime_watchdog > 0)
+ if (arg_running_as == SYSTEMD_SYSTEM && arg_runtime_watchdog > 0)
watchdog_set_timeout(&arg_runtime_watchdog);
if (arg_timer_slack_nsec != (nsec_t) -1)
}
}
- if (arg_running_as == MANAGER_USER) {
+ if (arg_running_as == SYSTEMD_USER) {
/* Become reaper of our children */
- r = prctl(PR_SET_CHILD_SUBREAPER, 1);
- if (r < 0)
- log_error("Failed to prctl(PR_SET_CHILD_SUBREAPER): %s", strerror(-r));
- if (r == -EINVAL)
- log_error("Perhaps the kernel version is too old (< 3.4?)");
+ if (prctl(PR_SET_CHILD_SUBREAPER, 1) < 0) {
+ log_warning("Failed to make us a subreaper: %m");
+ if (errno == EINVAL)
+ log_info("Perhaps the kernel version is too old (< 3.4?)");
+ }
}
+ if (arg_running_as == SYSTEMD_SYSTEM)
+ bump_rlimit_nofile(&saved_rlimit_nofile);
+
r = manager_new(arg_running_as, &m);
if (r < 0) {
log_error("Failed to allocate manager object: %s", strerror(-r));
manager_free(m);
for (j = 0; j < RLIMIT_NLIMITS; j++)
- free (arg_default_rlimit[j]);
+ free(arg_default_rlimit[j]);
free(arg_default_unit);
strv_free(arg_default_controllers);
* rebooted while we do that */
watchdog_close(true);
+ /* Reset the RLIMIT_NOFILE to the kernel default, so
+ * that the new systemd can pass the kernel default to
+ * its child processes */
+ if (saved_rlimit_nofile.rlim_cur > 0)
+ setrlimit(RLIMIT_NOFILE, &saved_rlimit_nofile);
+
if (switch_root_dir) {
/* Kill all remaining processes from the
* initrd, but don't wait for them, so that we
args[i++] = SYSTEMD_BINARY_PATH;
if (switch_root_dir)
args[i++] = "--switched-root";
- args[i++] = arg_running_as == MANAGER_SYSTEM ? "--system" : "--user";
+ args[i++] = arg_running_as == SYSTEMD_SYSTEM ? "--system" : "--user";
args[i++] = "--deserialize";
args[i++] = sfd;
args[i++] = NULL;
~ianmdlvl / elogind.git / blobdiff