#include "switch-root.h"
#include "capability.h"
#include "killall.h"
+#include "env-util.h"
+#include "hwclock.h"
+#include "sd-daemon.h"
#include "mount-setup.h"
#include "loopback-setup.h"
+#ifdef HAVE_KMOD
#include "kmod-setup.h"
+#endif
#include "hostname-setup.h"
#include "machine-id-setup.h"
#include "locale-setup.h"
-#include "hwclock.h"
#include "selinux-setup.h"
#include "ima-setup.h"
+#include "fileio.h"
+#include "smack-setup.h"
static enum {
ACTION_RUN,
if (!arg_dump_core)
log_error("Caught <%s>, not dumping core.", signal_to_string(sig));
else {
- struct sigaction sa;
+ struct sigaction sa = {
+ .sa_handler = nop_handler,
+ .sa_flags = SA_NOCLDSTOP|SA_RESTART,
+ };
pid_t pid;
/* We want to wait for the core process, hence let's enable SIGCHLD */
- zero(sa);
- sa.sa_handler = nop_handler;
- sa.sa_flags = SA_NOCLDSTOP|SA_RESTART;
assert_se(sigaction(SIGCHLD, &sa, NULL) == 0);
- if ((pid = fork()) < 0)
+ pid = fork();
+ if (pid < 0)
log_error("Caught <%s>, cannot fork for core dump: %s", signal_to_string(sig), strerror(errno));
else if (pid == 0) {
- struct rlimit rl;
+ struct rlimit rl = {};
/* Enable default signal handler for core dump */
zero(sa);
assert_se(sigaction(sig, &sa, NULL) == 0);
/* Don't limit the core dump size */
- zero(rl);
rl.rlim_cur = RLIM_INFINITY;
rl.rlim_max = RLIM_INFINITY;
setrlimit(RLIMIT_CORE, &rl);
int r;
/* Order things nicely. */
- if ((r = wait_for_terminate(pid, &status)) < 0)
+ r = wait_for_terminate(pid, &status);
+ if (r < 0)
log_error("Caught <%s>, waitpid() failed: %s", signal_to_string(sig), strerror(-r));
else if (status.si_code != CLD_DUMPED)
log_error("Caught <%s>, core dump failed.", signal_to_string(sig));
chvt(arg_crash_chvt);
if (arg_crash_shell) {
- struct sigaction sa;
+ struct sigaction sa = {
+ .sa_handler = SIG_IGN,
+ .sa_flags = SA_NOCLDSTOP|SA_NOCLDWAIT|SA_RESTART,
+ };
pid_t pid;
log_info("Executing crash shell in 10s...");
sleep(10);
/* Let the kernel reap children for us */
- zero(sa);
- sa.sa_handler = SIG_IGN;
- sa.sa_flags = SA_NOCLDSTOP|SA_NOCLDWAIT|SA_RESTART;
assert_se(sigaction(SIGCHLD, &sa, NULL) == 0);
pid = fork();
}
static void install_crash_handler(void) {
- struct sigaction sa;
-
- zero(sa);
-
- sa.sa_handler = crash;
- sa.sa_flags = SA_NODEFER;
+ struct sigaction sa = {
+ .sa_handler = crash,
+ .sa_flags = SA_NODEFER,
+ };
sigaction_many(&sa, SIGNALS_CRASH_HANDLER, -1);
}
else
arg_default_std_error = r;
} else if (startswith(word, "systemd.setenv=")) {
- char *cenv, *eq;
+ _cleanup_free_ char *cenv = NULL;
+ char *eq;
int r;
cenv = strdup(word + 15);
eq = strchr(cenv, '=');
if (!eq) {
- r = unsetenv(cenv);
- if (r < 0)
- log_warning("unsetenv failed %m. Ignoring.");
+ if (!env_name_is_valid(cenv))
+ log_warning("Environment variable name '%s' is not valid. Ignoring.", cenv);
+ else {
+ r = unsetenv(cenv);
+ if (r < 0)
+ log_warning("Unsetting environment variable '%s' failed, ignoring: %m", cenv);
+ }
} else {
- *eq = 0;
- r = setenv(cenv, eq + 1, 1);
- if (r < 0)
- log_warning("setenv failed %m. Ignoring.");
+ if (!env_assignment_is_valid(cenv))
+ log_warning("Environment variable assignment '%s' is not valid. Ignoring.", cenv);
+ else {
+ *eq = 0;
+ r = setenv(cenv, eq + 1, 1);
+ if (r < 0)
+ log_warning("Setting environment variable '%s=%s' failed, ignoring: %m", cenv, eq + 1);
+ }
}
- free(cenv);
} else if (startswith(word, "systemd.") ||
(in_initrd() && startswith(word, "rd.systemd."))) {
- log_warning("Unknown kernel switch %s. Ignoring.", word);
-
- log_info("Supported kernel switches:\n"
- "systemd.unit=UNIT Default unit to start\n"
- "rd.systemd.unit=UNIT Default unit to start when run in initrd\n"
- "systemd.dump_core=0|1 Dump core on crash\n"
- "systemd.crash_shell=0|1 Run shell on crash\n"
- "systemd.crash_chvt=N Change to VT #N on crash\n"
- "systemd.confirm_spawn=0|1 Confirm every process spawn\n"
- "systemd.show_status=0|1 Show status updates on the console during bootup\n"
- "systemd.log_target=console|kmsg|journal|journal-or-kmsg|syslog|syslog-or-kmsg|null\n"
- " Log target\n"
- "systemd.log_level=LEVEL Log level\n"
- "systemd.log_color=0|1 Highlight important log messages\n"
- "systemd.log_location=0|1 Include code location in log messages\n"
- "systemd.default_standard_output=null|tty|syslog|syslog+console|kmsg|kmsg+console|journal|journal+console\n"
- " Set default log output for services\n"
- "systemd.default_standard_error=null|tty|syslog|syslog+console|kmsg|kmsg+console|journal|journal+console\n"
- " Set default log error output for services\n"
- "systemd.setenv=ASSIGNMENT Set an environment variable for all spawned processes\n");
+ const char *c;
+
+ /* Ignore systemd.journald.xyz and friends */
+ c = word;
+ if (startswith(c, "rd."))
+ c += 3;
+ if (startswith(c, "systemd."))
+ c += 8;
+ if (c[strcspn(c, ".=")] != '.') {
+
+ log_warning("Unknown kernel switch %s. Ignoring.", word);
+
+ log_info("Supported kernel switches:\n"
+ "systemd.unit=UNIT Default unit to start\n"
+ "rd.systemd.unit=UNIT Default unit to start when run in initrd\n"
+ "systemd.dump_core=0|1 Dump core on crash\n"
+ "systemd.crash_shell=0|1 Run shell on crash\n"
+ "systemd.crash_chvt=N Change to VT #N on crash\n"
+ "systemd.confirm_spawn=0|1 Confirm every process spawn\n"
+ "systemd.show_status=0|1 Show status updates on the console during bootup\n"
+ "systemd.log_target=console|kmsg|journal|journal-or-kmsg|syslog|syslog-or-kmsg|null\n"
+ " Log target\n"
+ "systemd.log_level=LEVEL Log level\n"
+ "systemd.log_color=0|1 Highlight important log messages\n"
+ "systemd.log_location=0|1 Include code location in log messages\n"
+ "systemd.default_standard_output=null|tty|syslog|syslog+console|kmsg|kmsg+console|journal|journal+console\n"
+ " Set default log output for services\n"
+ "systemd.default_standard_error=null|tty|syslog|syslog+console|kmsg|kmsg+console|journal|journal+console\n"
+ " Set default log error output for services\n"
+ "systemd.setenv=ASSIGNMENT Set an environment variable for all spawned processes\n");
+ }
} else if (streq(word, "quiet"))
arg_show_status = false;
{ "Manager", "DefaultStandardOutput", config_parse_output, 0, &arg_default_std_output },
{ "Manager", "DefaultStandardError", config_parse_output, 0, &arg_default_std_error },
{ "Manager", "JoinControllers", config_parse_join_controllers, 0, &arg_join_controllers },
- { "Manager", "RuntimeWatchdogSec", config_parse_usec, 0, &arg_runtime_watchdog },
- { "Manager", "ShutdownWatchdogSec", config_parse_usec, 0, &arg_shutdown_watchdog },
+ { "Manager", "RuntimeWatchdogSec", config_parse_sec, 0, &arg_runtime_watchdog },
+ { "Manager", "ShutdownWatchdogSec", config_parse_sec, 0, &arg_shutdown_watchdog },
{ "Manager", "CapabilityBoundingSet", config_parse_bounding_set, 0, &arg_capability_bounding_set_drop },
{ "Manager", "TimerSlackNSec", config_parse_nsec, 0, &arg_timer_slack_nsec },
{ "Manager", "DefaultLimitCPU", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_CPU]},
{ NULL, NULL, NULL, 0, NULL }
};
- FILE *f;
+ FILE _cleanup_fclose_ *f;
const char *fn;
int r;
if (r < 0)
log_warning("Failed to parse configuration file: %s", strerror(-r));
- fclose(f);
-
return 0;
}
int fd;
FILE *f;
- if ((r = safe_atoi(optarg, &fd)) < 0 || fd < 0) {
+ r = safe_atoi(optarg, &fd);
+ if (r < 0 || fd < 0) {
log_error("Failed to parse deserialize option %s.", optarg);
- return r;
+ return r < 0 ? r : -EINVAL;
}
- if (!(f = fdopen(fd, "r"))) {
+ fd_cloexec(fd, true);
+
+ f = fdopen(fd, "r");
+ if (!f) {
log_error("Failed to open serialization fd: %m");
- return r;
+ return -errno;
}
if (serialization)
static int version(void) {
puts(PACKAGE_STRING);
- puts(DISTRIBUTION);
puts(SYSTEMD_FEATURES);
return 0;
/* Determine if this is a reexecution or normal bootup. We do
* the full command line parsing much later, so let's just
* have a quick peek here. */
- for (j = 1; j < argc; j++)
- if (streq(argv[j], "--deserialize")) {
- skip_setup = true;
- break;
- }
+ if (strv_find(argv+1, "--deserialize"))
+ skip_setup = true;
/* If we have switched root, do all the special setup
* things */
- for (j = 1; j < argc; j++)
- if (streq(argv[j], "--switched-root")) {
- skip_setup = false;
- break;
- }
+ if (strv_find(argv+1, "--switched-root"))
+ skip_setup = false;
/* If we get started via the /sbin/init symlink then we are
called 'init'. After a subsequent reexecution we are then
}
if (!skip_setup) {
+ mount_setup_early();
if (selinux_setup(&loaded_policy) < 0)
goto finish;
if (ima_setup() < 0)
goto finish;
+ if (smack_setup() < 0)
+ goto finish;
}
if (label_init(NULL) < 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 {
- /* Do dummy first-time call to seal the kernel's time warp magic */
+ } 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 */
/* Mount /proc, /sys and friends, so that /proc/cmdline and
* /proc/$PID/fd is available. */
- if (geteuid() == 0 && !getenv("SYSTEMD_SKIP_API_MOUNTS")) {
+ if (getpid() == 1) {
r = mount_setup(loaded_policy);
if (r < 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 == 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_close();
/* Remember open file descriptors for later deserialization */
- if (serialization) {
- r = fdset_new_fill(&fds);
- if (r < 0) {
- log_error("Failed to allocate fd set: %s", strerror(-r));
- goto finish;
- }
+ r = fdset_new_fill(&fds);
+ if (r < 0) {
+ log_error("Failed to allocate fd set: %s", strerror(-r));
+ goto finish;
+ } else
+ fdset_cloexec(fds, true);
+ if (serialization)
assert_se(fdset_remove(fds, fileno(serialization)) >= 0);
- } else
- close_all_fds(NULL, 0);
/* Set up PATH unless it is already set */
setenv("PATH",
unsetenv("USER");
unsetenv("LOGNAME");
+ /* We suppress the socket activation env vars, as
+ * we'll try to match *any* open fd to units if
+ * possible. */
+ unsetenv("LISTEN_FDS");
+ unsetenv("LISTEN_PID");
+
/* All other variables are left as is, so that clients
* can still read them via /proc/1/environ */
}
/* Make sure we leave a core dump without panicing the
* kernel. */
- if (getpid() == 1)
+ if (getpid() == 1) {
install_crash_handler();
- if (geteuid() == 0 && !getenv("SYSTEMD_SKIP_API_MOUNTS")) {
r = mount_cgroup_controllers(arg_join_controllers);
if (r < 0)
goto finish;
if (arg_running_as == SYSTEMD_SYSTEM) {
const char *virtualization = NULL;
- log_info(PACKAGE_STRING " running in system mode. (" SYSTEMD_FEATURES "; " DISTRIBUTION ")");
+ log_info(PACKAGE_STRING " running in system mode. (" SYSTEMD_FEATURES ")");
detect_virtualization(&virtualization);
if (virtualization)
log_info("Running in initial RAM disk.");
} else
- log_debug(PACKAGE_STRING " running in user mode. (" SYSTEMD_FEATURES "; " DISTRIBUTION ")");
+ log_debug(PACKAGE_STRING " running in user mode. (" SYSTEMD_FEATURES ")");
if (arg_running_as == SYSTEMD_SYSTEM && !skip_setup) {
locale_setup();
if (arg_show_status || plymouth_running())
status_welcome();
+#ifdef HAVE_KMOD
kmod_setup();
+#endif
hostname_setup();
machine_id_setup();
loopback_setup();
/* This will close all file descriptors that were opened, but
* not claimed by any unit. */
- if (fds) {
- fdset_free(fds);
- fds = NULL;
- }
+ fdset_free(fds);
if (serialization) {
fclose(serialization);
manager_dump_units(m, stdout, "\t");
}
- r = manager_add_job(m, JOB_START, target, JOB_REPLACE, false, &error, &default_unit_job);
- if (r < 0) {
- log_error("Failed to start default target: %s", bus_error(&error, r));
+ r = manager_add_job(m, JOB_START, target, JOB_ISOLATE, false, &error, &default_unit_job);
+ if (r == -EPERM) {
+ log_error("Default target could not be isolated, starting instead: %s", bus_error(&error, r));
+ dbus_error_free(&error);
+
+ r = manager_add_job(m, JOB_START, target, JOB_REPLACE, false, &error, &default_unit_job);
+ if (r < 0) {
+ log_error("Failed to start default target: %s", bus_error(&error, r));
+ dbus_error_free(&error);
+ goto finish;
+ }
+ } else if (r < 0) {
+ log_error("Failed to isolate default target: %s", bus_error(&error, r));
dbus_error_free(&error);
goto finish;
}
+
m->default_unit_job_id = default_unit_job->id;
after_startup = now(CLOCK_MONOTONIC);
log_full(arg_action == ACTION_TEST ? LOG_INFO : LOG_DEBUG,
"Loaded units and determined initial transaction in %s.",
- format_timespan(timespan, sizeof(timespan), after_startup - before_startup));
+ format_timespan(timespan, sizeof(timespan), after_startup - before_startup, 0));
if (arg_action == ACTION_TEST) {
printf("-> By jobs:\n");
~ianmdlvl / elogind.git / blobdiff