/* SPDX-License-Identifier: LGPL-2.1+ */
/***
- This file is part of systemd.
-
Copyright 2010 Lennart Poettering
***/
s = strjoin("/dev/", value);
if (!s)
return -ENOMEM;
+
*console = s;
return 0;
}
return 0; \
}
-DEFINE_SETTER(config_parse_level2, log_set_max_level_from_string, "log level")
-DEFINE_SETTER(config_parse_target, log_set_target_from_string, "target")
-DEFINE_SETTER(config_parse_color, log_show_color_from_string, "color" )
-DEFINE_SETTER(config_parse_location, log_show_location_from_string, "location")
+DEFINE_SETTER(config_parse_level2, log_set_max_level_from_string, "log level");
+DEFINE_SETTER(config_parse_target, log_set_target_from_string, "target");
+DEFINE_SETTER(config_parse_color, log_show_color_from_string, "color" );
+DEFINE_SETTER(config_parse_location, log_show_location_from_string, "location");
static int config_parse_cpu_affinity2(
const char *unit,
assert(m);
+ /* Propagates the various default unit property settings into the manager object, i.e. properties that do not
+ * affect the manager itself, but are just what newly allocated units will have set if they haven't set
+ * anything else. (Also see set_manager_settings() for the settings that affect the manager's own behaviour) */
+
m->default_timer_accuracy_usec = arg_default_timer_accuracy_usec;
m->default_std_output = arg_default_std_output;
m->default_std_error = arg_default_std_error;
assert(m);
+ /* Propagates the various manager settings into the manager object, i.e. properties that effect the manager
+ * itself (as opposed to just being inherited into newly allocated units, see set_manager_defaults() above). */
+
m->confirm_spawn = arg_confirm_spawn;
m->service_watchdogs = arg_service_watchdogs;
m->runtime_watchdog = arg_runtime_watchdog;
}
static int bump_rlimit_nofile(struct rlimit *saved_rlimit) {
- struct rlimit nl;
- int r;
- int min_max;
- _cleanup_free_ char *nr_open = NULL;
+ int r, nr;
assert(saved_rlimit);
arg_default_rlimit[RLIMIT_NOFILE] = rl;
}
- /* Get current RLIMIT_NOFILE maximum compiled into the kernel. */
- r = read_one_line_file("/proc/sys/fs/nr_open", &nr_open);
- if (r >= 0)
- r = safe_atoi(nr_open, &min_max);
- /* If we fail, fallback to the hard-coded kernel limit of 1024 * 1024. */
- if (r < 0)
- min_max = 1024 * 1024;
-
- /* Bump up the resource limit for ourselves substantially */
- nl.rlim_cur = nl.rlim_max = min_max;
- r = setrlimit_closest(RLIMIT_NOFILE, &nl);
+ /* Bump up the resource limit for ourselves substantially, all the way to the maximum the kernel allows */
+ nr = read_nr_open();
+ r = setrlimit_closest(RLIMIT_NOFILE, &RLIMIT_MAKE_CONST(nr));
if (r < 0)
return log_warning_errno(r, "Setting RLIMIT_NOFILE failed, ignoring: %m");
unsigned long v;
int r;
- /* Let's bump the net.unix.max_dgram_qlen sysctl. The kernel
- * default of 16 is simply too low. We set the value really
- * really early during boot, so that it is actually applied to
- * all our sockets, including the $NOTIFY_SOCKET one. */
+ /* Let's bump the net.unix.max_dgram_qlen sysctl. The kernel default of 16 is simply too low. We set the value
+ * really really early during boot, so that it is actually applied to all our sockets, including the
+ * $NOTIFY_SOCKET one. */
r = read_one_line_file("/proc/sys/net/unix/max_dgram_qlen", &qlen);
if (r < 0)
r = safe_atolu(qlen, &v);
if (r < 0)
- return log_warning_errno(r, "Failed to parse AF_UNIX datagram queue length, ignoring: %m");
+ return log_warning_errno(r, "Failed to parse AF_UNIX datagram queue length '%s', ignoring: %m", qlen);
if (v >= DEFAULT_UNIX_MAX_DGRAM_QLEN)
return 0;
- qlen = mfree(qlen);
- if (asprintf(&qlen, "%lu\n", DEFAULT_UNIX_MAX_DGRAM_QLEN) < 0)
- return log_oom();
-
- r = write_string_file("/proc/sys/net/unix/max_dgram_qlen", qlen, 0);
+ r = write_string_filef("/proc/sys/net/unix/max_dgram_qlen", 0, "%lu", DEFAULT_UNIX_MAX_DGRAM_QLEN);
if (r < 0)
return log_full_errno(IN_SET(r, -EROFS, -EPERM, -EACCES) ? LOG_DEBUG : LOG_WARNING, r,
"Failed to bump AF_UNIX datagram queue length, ignoring: %m");
switch (m->exit_code) {
- case MANAGER_RELOAD:
+ case MANAGER_RELOAD: {
+ LogTarget saved_log_target;
+ int saved_log_level;
+
log_info("Reloading.");
+ /* First, save any overriden log level/target, then parse the configuration file, which might
+ * change the log level to new settings. */
+
+ saved_log_level = m->log_level_overridden ? log_get_max_level() : -1;
+ saved_log_target = m->log_target_overridden ? log_get_target() : _LOG_TARGET_INVALID;
+
r = parse_config_file();
if (r < 0)
log_warning_errno(r, "Failed to parse config file, ignoring: %m");
set_manager_defaults(m);
+ if (saved_log_level >= 0)
+ manager_override_log_level(m, saved_log_level);
+ if (saved_log_target >= 0)
+ manager_override_log_target(m, saved_log_target);
+
r = manager_reload(m);
if (r < 0)
log_warning_errno(r, "Failed to reload, ignoring: %m");
break;
+ }
case MANAGER_REEXECUTE:
}
static void free_arguments(void) {
- size_t j;
/* Frees all arg_* variables, with the exception of arg_serialization */
-
- for (j = 0; j < ELEMENTSOF(arg_default_rlimit); j++)
- arg_default_rlimit[j] = mfree(arg_default_rlimit[j]);
+ rlimit_free_all(arg_default_rlimit);
arg_default_unit = mfree(arg_default_unit);
arg_confirm_spawn = mfree(arg_confirm_spawn);
* anyway, even if in that case we also do deserialization. */
for (i = 1; i < argc; i++) {
-
if (streq(argv[i], "--switched-root"))
return false; /* If we switched root, don't skip the setup. */
else if (streq(argv[i], "--deserialize"))
log_set_upgrade_syslog_to_journal(true);
if (getpid_cached() == 1) {
+ /* When we run as PID 1 force system mode */
+ arg_system = true;
+
/* Disable the umask logic */
umask(0);
- /* Make sure that at least initially we do not ever log to journald/syslogd, because it might not be activated
- * yet (even though the log socket for it exists). */
+ /* Make sure that at least initially we do not ever log to journald/syslogd, because it might not be
+ * activated yet (even though the log socket for it exists). */
log_set_prohibit_ipc(true);
/* Always reopen /dev/console when running as PID 1 or one of its pre-execve() children. This is
* child process right before execve()'ing the actual binary, at a point in time where socket
* activation stderr/stdout area already set up. */
log_set_always_reopen_console(true);
- }
- if (getpid_cached() == 1 && detect_container() <= 0) {
+ if (detect_container() <= 0) {
- /* Running outside of a container as PID 1 */
- arg_system = true;
- log_set_target(LOG_TARGET_KMSG);
- log_open();
+ /* Running outside of a container as PID 1 */
+ log_set_target(LOG_TARGET_KMSG);
+ log_open();
- if (in_initrd())
- initrd_timestamp = userspace_timestamp;
+ if (in_initrd())
+ initrd_timestamp = userspace_timestamp;
- if (!skip_setup) {
- r = mount_setup_early();
- if (r < 0) {
- error_message = "Failed to mount early API filesystems";
- goto finish;
+ if (!skip_setup) {
+ r = mount_setup_early();
+ if (r < 0) {
+ error_message = "Failed to mount early API filesystems";
+ goto finish;
+ }
+
+ r = initialize_security(
+ &loaded_policy,
+ &security_start_timestamp,
+ &security_finish_timestamp,
+ &error_message);
+ if (r < 0)
+ goto finish;
}
- r = initialize_security(
- &loaded_policy,
- &security_start_timestamp,
- &security_finish_timestamp,
- &error_message);
- if (r < 0)
+ if (mac_selinux_init() < 0) {
+ error_message = "Failed to initialize SELinux policy";
goto finish;
- }
+ }
- if (mac_selinux_init() < 0) {
- error_message = "Failed to initialize SELinux policy";
- goto finish;
+ if (!skip_setup)
+ initialize_clock();
+
+ /* 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 {
+ /* Running inside a container, as PID 1 */
+ log_set_target(LOG_TARGET_CONSOLE);
+ log_open();
+
+ /* For later on, see above... */
+ log_set_target(LOG_TARGET_JOURNAL);
+
+ /* clear the kernel timestamp,
+ * because we are in a container */
+ kernel_timestamp = DUAL_TIMESTAMP_NULL;
}
- if (!skip_setup)
- initialize_clock();
-
- /* 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_cached() == 1) {
- /* Running inside a container, as PID 1 */
- arg_system = true;
- log_set_target(LOG_TARGET_CONSOLE);
- log_open();
+ initialize_coredump(skip_setup);
- /* For later on, see above... */
- log_set_target(LOG_TARGET_JOURNAL);
+ r = fixup_environment();
+ if (r < 0) {
+ log_emergency_errno(r, "Failed to fix up PID 1 environment: %m");
+ error_message = "Failed to fix up PID1 environment";
+ goto finish;
+ }
- /* clear the kernel timestamp,
- * because we are in a container */
- kernel_timestamp = DUAL_TIMESTAMP_NULL;
} else {
/* Running as user instance */
arg_system = false;
kernel_timestamp = DUAL_TIMESTAMP_NULL;
}
- initialize_coredump(skip_setup);
-
- r = fixup_environment();
- if (r < 0) {
- log_emergency_errno(r, "Failed to fix up PID 1 environment: %m");
- error_message = "Failed to fix up PID1 environment";
- goto finish;
- }
-
if (arg_system) {
-
- /* Try to figure out if we can use colors with the console. No
- * need to do that for user instances since they never log
- * into the console. */
+ /* Try to figure out if we can use colors with the console. No need to do that for user instances since
+ * they never log into the console. */
log_show_color(colors_enabled());
+
r = make_null_stdio();
if (r < 0)
- log_warning_errno(r, "Failed to redirect standard streams to /dev/null: %m");
+ log_warning_errno(r, "Failed to redirect standard streams to /dev/null, ignoring: %m");
}
/* Mount /proc, /sys and friends, so that /proc/cmdline and
finish:
pager_close();
- if (m)
+ if (m) {
arg_shutdown_watchdog = m->shutdown_watchdog;
-
- m = manager_free(m);
+ m = manager_free(m);
+ }
free_arguments();
mac_selinux_finish();
if (shutdown_verb) {
r = become_shutdown(shutdown_verb, retval);
-
log_error_errno(r, "Failed to execute shutdown binary, %s: %m", getpid_cached() == 1 ? "freezing" : "quitting");
error_message = "Failed to execute shutdown binary";
}
projects / thirdparty / systemd.git / blobdiff