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-rw-r--r--src/core/main.c1040
1 files changed, 590 insertions, 450 deletions
diff --git a/src/core/main.c b/src/core/main.c
index 6ae8b51544..61f3828a36 100644
--- a/src/core/main.c
+++ b/src/core/main.c
@@ -1,5 +1,3 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
/***
This file is part of systemd.
@@ -19,81 +17,96 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include <stdio.h>
#include <errno.h>
-#include <string.h>
-#include <unistd.h>
-#include <sys/stat.h>
+#include <fcntl.h>
#include <getopt.h>
#include <signal.h>
-#include <fcntl.h>
-#include <sys/prctl.h>
+#include <stdio.h>
+#include <string.h>
#include <sys/mount.h>
-
-#ifdef HAVE_VALGRIND_VALGRIND_H
-#include <valgrind/valgrind.h>
-#endif
+#include <sys/prctl.h>
+#include <sys/reboot.h>
+#include <sys/stat.h>
+#include <unistd.h>
#ifdef HAVE_SECCOMP
#include <seccomp.h>
#endif
+#ifdef HAVE_VALGRIND_VALGRIND_H
+#include <valgrind/valgrind.h>
+#endif
-#include "sd-daemon.h"
#include "sd-bus.h"
-#include "log.h"
-#include "fdset.h"
-#include "special.h"
-#include "conf-parser.h"
-#include "missing.h"
-#include "pager.h"
+#include "sd-daemon.h"
+
+#include "alloc-util.h"
+#include "architecture.h"
#include "build.h"
-#include "strv.h"
+#include "bus-error.h"
+#include "bus-util.h"
+#include "capability-util.h"
+#include "clock-util.h"
+#include "conf-parser.h"
+#include "cpu-set-util.h"
+#include "dbus-manager.h"
#include "def.h"
-#include "virt.h"
-#include "architecture.h"
-#include "watchdog.h"
-#include "switch-root.h"
-#include "capability.h"
-#include "killall.h"
#include "env-util.h"
-#include "clock-util.h"
+#include "fd-util.h"
+#include "fdset.h"
#include "fileio.h"
-#include "bus-error.h"
-#include "bus-util.h"
-#include "selinux-util.h"
#include "formats-util.h"
-#include "process-util.h"
-#include "terminal-util.h"
-#include "signal-util.h"
-#include "manager.h"
-#include "dbus-manager.h"
+#include "fs-util.h"
+#include "hostname-setup.h"
+#include "ima-setup.h"
+#include "killall.h"
+#include "kmod-setup.h"
#include "load-fragment.h"
-
-#include "mount-setup.h"
+#include "log.h"
#include "loopback-setup.h"
-#include "hostname-setup.h"
#include "machine-id-setup.h"
+#include "manager.h"
+#include "missing.h"
+#include "mount-setup.h"
+#include "pager.h"
+#include "parse-util.h"
+#include "proc-cmdline.h"
+#include "process-util.h"
+#include "raw-clone.h"
+#include "rlimit-util.h"
+#ifdef HAVE_SECCOMP
+#include "seccomp-util.h"
+#endif
#include "selinux-setup.h"
-#include "ima-setup.h"
+#include "selinux-util.h"
+#include "signal-util.h"
#include "smack-setup.h"
-#include "kmod-setup.h"
+#include "special.h"
+#include "stat-util.h"
+#include "stdio-util.h"
+#include "strv.h"
+#include "switch-root.h"
+#include "terminal-util.h"
+#include "umask-util.h"
+#include "user-util.h"
+#include "virt.h"
+#include "watchdog.h"
static enum {
ACTION_RUN,
ACTION_HELP,
ACTION_VERSION,
ACTION_TEST,
- ACTION_DUMP_CONFIGURATION_ITEMS,
- ACTION_DONE
+ ACTION_DUMP_CONFIGURATION_ITEMS
} arg_action = ACTION_RUN;
static char *arg_default_unit = NULL;
-static ManagerRunningAs arg_running_as = _MANAGER_RUNNING_AS_INVALID;
+static bool arg_system = false;
static bool arg_dump_core = true;
-static bool arg_crash_shell = false;
static int arg_crash_chvt = -1;
+static bool arg_crash_shell = false;
+static bool arg_crash_reboot = false;
static bool arg_confirm_spawn = false;
static ShowStatus arg_show_status = _SHOW_STATUS_UNSET;
static bool arg_switched_root = false;
-static int arg_no_pager = -1;
+static bool arg_no_pager = false;
static char ***arg_join_controllers = NULL;
static ExecOutput arg_default_std_output = EXEC_OUTPUT_JOURNAL;
static ExecOutput arg_default_std_error = EXEC_OUTPUT_INHERIT;
@@ -106,68 +119,76 @@ static usec_t arg_runtime_watchdog = 0;
static usec_t arg_shutdown_watchdog = 10 * USEC_PER_MINUTE;
static char **arg_default_environment = NULL;
static struct rlimit *arg_default_rlimit[_RLIMIT_MAX] = {};
-static uint64_t arg_capability_bounding_set_drop = 0;
+static uint64_t arg_capability_bounding_set = CAP_ALL;
static nsec_t arg_timer_slack_nsec = NSEC_INFINITY;
static usec_t arg_default_timer_accuracy_usec = 1 * USEC_PER_MINUTE;
static Set* arg_syscall_archs = NULL;
static FILE* arg_serialization = NULL;
static bool arg_default_cpu_accounting = false;
+static bool arg_default_io_accounting = false;
static bool arg_default_blockio_accounting = false;
static bool arg_default_memory_accounting = false;
+static bool arg_default_tasks_accounting = true;
+static uint64_t arg_default_tasks_max = UINT64_MAX;
+static sd_id128_t arg_machine_id = {};
+static CADBurstAction arg_cad_burst_action = CAD_BURST_ACTION_REBOOT;
-static void nop_handler(int sig) {}
+noreturn static void freeze_or_reboot(void) {
-static void pager_open_if_enabled(void) {
+ if (arg_crash_reboot) {
+ log_notice("Rebooting in 10s...");
+ (void) sleep(10);
- if (arg_no_pager <= 0)
- return;
+ log_notice("Rebooting now...");
+ (void) reboot(RB_AUTOBOOT);
+ log_emergency_errno(errno, "Failed to reboot: %m");
+ }
- pager_open(false);
+ log_emergency("Freezing execution.");
+ freeze();
}
noreturn static void crash(int sig) {
+ struct sigaction sa;
+ pid_t pid;
if (getpid() != 1)
/* Pass this on immediately, if this is not PID 1 */
- raise(sig);
+ (void) raise(sig);
else if (!arg_dump_core)
log_emergency("Caught <%s>, not dumping core.", signal_to_string(sig));
else {
- struct sigaction sa = {
- .sa_handler = nop_handler,
+ sa = (struct sigaction) {
+ .sa_handler = nop_signal_handler,
.sa_flags = SA_NOCLDSTOP|SA_RESTART,
};
- pid_t pid;
/* We want to wait for the core process, hence let's enable SIGCHLD */
- sigaction(SIGCHLD, &sa, NULL);
+ (void) sigaction(SIGCHLD, &sa, NULL);
- pid = raw_clone(SIGCHLD, NULL);
+ pid = raw_clone(SIGCHLD);
if (pid < 0)
log_emergency_errno(errno, "Caught <%s>, cannot fork for core dump: %m", signal_to_string(sig));
-
else if (pid == 0) {
- struct rlimit rl = {};
-
/* Enable default signal handler for core dump */
- zero(sa);
- sa.sa_handler = SIG_DFL;
- sigaction(sig, &sa, NULL);
- /* Don't limit the core dump size */
- rl.rlim_cur = RLIM_INFINITY;
- rl.rlim_max = RLIM_INFINITY;
- setrlimit(RLIMIT_CORE, &rl);
+ sa = (struct sigaction) {
+ .sa_handler = SIG_DFL,
+ };
+ (void) sigaction(sig, &sa, NULL);
+
+ /* Don't limit the coredump size */
+ (void) setrlimit(RLIMIT_CORE, &RLIMIT_MAKE_CONST(RLIM_INFINITY));
/* Just to be sure... */
(void) chdir("/");
/* Raise the signal again */
pid = raw_getpid();
- kill(pid, sig); /* raise() would kill the parent */
+ (void) kill(pid, sig); /* raise() would kill the parent */
assert_not_reached("We shouldn't be here...");
- _exit(1);
+ _exit(EXIT_FAILURE);
} else {
siginfo_t status;
int r;
@@ -182,44 +203,45 @@ noreturn static void crash(int sig) {
pid, sigchld_code_to_string(status.si_code),
status.si_status,
strna(status.si_code == CLD_EXITED
- ? exit_status_to_string(status.si_status, EXIT_STATUS_FULL)
+ ? exit_status_to_string(status.si_status, EXIT_STATUS_MINIMAL)
: signal_to_string(status.si_status)));
else
log_emergency("Caught <%s>, dumped core as pid "PID_FMT".", signal_to_string(sig), pid);
}
}
- if (arg_crash_chvt)
- chvt(arg_crash_chvt);
+ if (arg_crash_chvt >= 0)
+ (void) chvt(arg_crash_chvt);
- if (arg_crash_shell) {
- struct sigaction sa = {
- .sa_handler = SIG_IGN,
- .sa_flags = SA_NOCLDSTOP|SA_NOCLDWAIT|SA_RESTART,
- };
- pid_t pid;
+ sa = (struct sigaction) {
+ .sa_handler = SIG_IGN,
+ .sa_flags = SA_NOCLDSTOP|SA_NOCLDWAIT|SA_RESTART,
+ };
- log_info("Executing crash shell in 10s...");
- sleep(10);
+ /* Let the kernel reap children for us */
+ (void) sigaction(SIGCHLD, &sa, NULL);
- /* Let the kernel reap children for us */
- assert_se(sigaction(SIGCHLD, &sa, NULL) == 0);
+ if (arg_crash_shell) {
+ log_notice("Executing crash shell in 10s...");
+ (void) sleep(10);
- pid = raw_clone(SIGCHLD, NULL);
+ pid = raw_clone(SIGCHLD);
if (pid < 0)
log_emergency_errno(errno, "Failed to fork off crash shell: %m");
else if (pid == 0) {
- make_console_stdio();
- execle("/bin/sh", "/bin/sh", NULL, environ);
+ (void) setsid();
+ (void) make_console_stdio();
+ (void) execle("/bin/sh", "/bin/sh", NULL, environ);
log_emergency_errno(errno, "execle() failed: %m");
- _exit(1);
- } else
- log_info("Successfully spawned crash shell as PID "PID_FMT".", pid);
+ _exit(EXIT_FAILURE);
+ } else {
+ log_info("Spawned crash shell as PID "PID_FMT".", pid);
+ (void) wait_for_terminate(pid, NULL);
+ }
}
- log_emergency("Freezing execution.");
- freeze();
+ freeze_or_reboot();
}
static void install_crash_handler(void) {
@@ -253,37 +275,40 @@ static int console_setup(void) {
return 0;
}
-static int set_default_unit(const char *u) {
- char *c;
+static int parse_crash_chvt(const char *value) {
+ int b;
- assert(u);
+ if (safe_atoi(value, &arg_crash_chvt) >= 0)
+ return 0;
- c = strdup(u);
- if (!c)
- return -ENOMEM;
+ b = parse_boolean(value);
+ if (b < 0)
+ return b;
+
+ if (b > 0)
+ arg_crash_chvt = 0; /* switch to where kmsg goes */
+ else
+ arg_crash_chvt = -1; /* turn off switching */
+
+ return 0;
+}
+
+static int set_machine_id(const char *m) {
+ sd_id128_t t;
+ assert(m);
+
+ if (sd_id128_from_string(m, &t) < 0)
+ return -EINVAL;
- free(arg_default_unit);
- arg_default_unit = c;
+ if (sd_id128_is_null(t))
+ return -EINVAL;
+ arg_machine_id = t;
return 0;
}
static int parse_proc_cmdline_item(const char *key, const char *value) {
- static const char * const rlmap[] = {
- "emergency", SPECIAL_EMERGENCY_TARGET,
- "-b", SPECIAL_EMERGENCY_TARGET,
- "rescue", SPECIAL_RESCUE_TARGET,
- "single", SPECIAL_RESCUE_TARGET,
- "-s", SPECIAL_RESCUE_TARGET,
- "s", SPECIAL_RESCUE_TARGET,
- "S", SPECIAL_RESCUE_TARGET,
- "1", SPECIAL_RESCUE_TARGET,
- "2", SPECIAL_MULTI_USER_TARGET,
- "3", SPECIAL_MULTI_USER_TARGET,
- "4", SPECIAL_MULTI_USER_TARGET,
- "5", SPECIAL_GRAPHICAL_TARGET,
- };
int r;
assert(key);
@@ -291,12 +316,12 @@ static int parse_proc_cmdline_item(const char *key, const char *value) {
if (streq(key, "systemd.unit") && value) {
if (!in_initrd())
- return set_default_unit(value);
+ return free_and_strdup(&arg_default_unit, value);
} else if (streq(key, "rd.systemd.unit") && value) {
if (in_initrd())
- return set_default_unit(value);
+ return free_and_strdup(&arg_default_unit, value);
} else if (streq(key, "systemd.dump_core") && value) {
@@ -306,6 +331,11 @@ static int parse_proc_cmdline_item(const char *key, const char *value) {
else
arg_dump_core = r;
+ } else if (streq(key, "systemd.crash_chvt") && value) {
+
+ if (parse_crash_chvt(value) < 0)
+ log_warning("Failed to parse crash chvt switch %s. Ignoring.", value);
+
} else if (streq(key, "systemd.crash_shell") && value) {
r = parse_boolean(value);
@@ -314,12 +344,13 @@ static int parse_proc_cmdline_item(const char *key, const char *value) {
else
arg_crash_shell = r;
- } else if (streq(key, "systemd.crash_chvt") && value) {
+ } else if (streq(key, "systemd.crash_reboot") && value) {
- if (safe_atoi(value, &r) < 0)
- log_warning("Failed to parse crash chvt switch %s. Ignoring.", value);
+ r = parse_boolean(value);
+ if (r < 0)
+ log_warning("Failed to parse crash reboot switch %s. Ignoring.", value);
else
- arg_crash_chvt = r;
+ arg_crash_reboot = r;
} else if (streq(key, "systemd.confirm_spawn") && value) {
@@ -364,6 +395,12 @@ static int parse_proc_cmdline_item(const char *key, const char *value) {
} else
log_warning("Environment variable name '%s' is not valid. Ignoring.", value);
+ } else if (streq(key, "systemd.machine_id") && value) {
+
+ r = set_machine_id(value);
+ if (r < 0)
+ log_warning("MachineID '%s' is not valid. Ignoring.", value);
+
} else if (streq(key, "quiet") && !value) {
if (arg_show_status == _SHOW_STATUS_UNSET)
@@ -374,16 +411,25 @@ static int parse_proc_cmdline_item(const char *key, const char *value) {
/* Note that log_parse_environment() handles 'debug'
* too, and sets the log level to LOG_DEBUG. */
- if (detect_container(NULL) > 0)
+ if (detect_container() > 0)
log_set_target(LOG_TARGET_CONSOLE);
- } else if (!in_initrd() && !value) {
- unsigned i;
+ } else if (!value) {
+ const char *target;
/* SysV compatibility */
- for (i = 0; i < ELEMENTSOF(rlmap); i += 2)
- if (streq(key, rlmap[i]))
- return set_default_unit(rlmap[i+1]);
+ target = runlevel_to_target(key);
+ if (target)
+ return free_and_strdup(&arg_default_unit, target);
+
+ } else if (streq(key, "systemd.default_timeout_start_sec") && value) {
+
+ r = parse_sec(value, &arg_default_timeout_start_usec);
+ if (r < 0)
+ log_warning_errno(r, "Failed to parse default start timeout: %s, ignoring.", value);
+
+ if (arg_default_timeout_start_usec <= 0)
+ arg_default_timeout_start_usec = USEC_INFINITY;
}
return 0;
@@ -409,9 +455,9 @@ static int parse_proc_cmdline_item(const char *key, const char *value) {
\
r = func(rvalue); \
if (r < 0) \
- log_syntax(unit, LOG_ERR, filename, line, -r, \
- "Invalid " descr "'%s': %s", \
- rvalue, strerror(-r)); \
+ log_syntax(unit, LOG_ERR, filename, line, r, \
+ "Invalid " descr "'%s': %m", \
+ rvalue); \
\
return 0; \
}
@@ -433,49 +479,15 @@ static int config_parse_cpu_affinity2(
void *data,
void *userdata) {
- const char *word, *state;
- size_t l;
- cpu_set_t *c = NULL;
- unsigned ncpus = 0;
+ _cleanup_cpu_free_ cpu_set_t *c = NULL;
+ int ncpus;
- assert(filename);
- assert(lvalue);
- assert(rvalue);
+ ncpus = parse_cpu_set_and_warn(rvalue, &c, unit, filename, line, lvalue);
+ if (ncpus < 0)
+ return ncpus;
- FOREACH_WORD_QUOTED(word, l, rvalue, state) {
- char *t;
- int r;
- unsigned cpu;
-
- if (!(t = strndup(word, l)))
- return log_oom();
-
- r = safe_atou(t, &cpu);
- free(t);
-
- if (!c)
- if (!(c = cpu_set_malloc(&ncpus)))
- return log_oom();
-
- if (r < 0 || cpu >= ncpus) {
- log_syntax(unit, LOG_ERR, filename, line, -r,
- "Failed to parse CPU affinity '%s'", rvalue);
- CPU_FREE(c);
- return -EBADMSG;
- }
-
- CPU_SET_S(cpu, CPU_ALLOC_SIZE(ncpus), c);
- }
- if (!isempty(state))
- log_syntax(unit, LOG_ERR, filename, line, EINVAL,
- "Trailing garbage, ignoring.");
-
- if (c) {
- if (sched_setaffinity(0, CPU_ALLOC_SIZE(ncpus), c) < 0)
- log_warning("Failed to set CPU affinity: %m");
-
- CPU_FREE(c);
- }
+ if (sched_setaffinity(0, CPU_ALLOC_SIZE(ncpus), c) < 0)
+ log_warning("Failed to set CPU affinity: %m");
return 0;
}
@@ -502,29 +514,38 @@ static int config_parse_show_status(
k = parse_show_status(rvalue, b);
if (k < 0) {
- log_syntax(unit, LOG_ERR, filename, line, -k,
- "Failed to parse show status setting, ignoring: %s", rvalue);
+ log_syntax(unit, LOG_ERR, filename, line, k, "Failed to parse show status setting, ignoring: %s", rvalue);
return 0;
}
return 0;
}
-static void strv_free_free(char ***l) {
- char ***i;
+static int config_parse_crash_chvt(
+ const char* unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
- if (!l)
- return;
+ int r;
- for (i = l; *i; i++)
- strv_free(*i);
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
- free(l);
-}
+ r = parse_crash_chvt(rvalue);
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse CrashChangeVT= setting, ignoring: %s", rvalue);
+ return 0;
+ }
-static void free_join_controllers(void) {
- strv_free_free(arg_join_controllers);
- arg_join_controllers = NULL;
+ return 0;
}
static int config_parse_join_controllers(const char *unit,
@@ -538,26 +559,31 @@ static int config_parse_join_controllers(const char *unit,
void *data,
void *userdata) {
+ const char *whole_rvalue = rvalue;
unsigned n = 0;
- const char *word, *state;
- size_t length;
assert(filename);
assert(lvalue);
assert(rvalue);
- free_join_controllers();
+ arg_join_controllers = strv_free_free(arg_join_controllers);
- FOREACH_WORD_QUOTED(word, length, rvalue, state) {
- char *s, **l;
-
- s = strndup(word, length);
- if (!s)
- return log_oom();
+ for (;;) {
+ _cleanup_free_ char *word = NULL;
+ char **l;
+ int r;
- l = strv_split(s, ",");
- free(s);
+ r = extract_first_word(&rvalue, &word, WHITESPACE, EXTRACT_QUOTES);
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, r, "Invalid value for %s: %s", lvalue, whole_rvalue);
+ return r;
+ }
+ if (r == 0)
+ break;
+ l = strv_split(word, ",");
+ if (!l)
+ return log_oom();
strv_uniq(l);
if (strv_length(l) <= 1) {
@@ -591,7 +617,7 @@ static int config_parse_join_controllers(const char *unit,
for (a = arg_join_controllers; *a; a++) {
if (strv_overlap(*a, l)) {
- if (strv_extend_strv(&l, *a) < 0) {
+ if (strv_extend_strv(&l, *a, false) < 0) {
strv_free(l);
strv_free_free(t);
return log_oom();
@@ -617,13 +643,14 @@ static int config_parse_join_controllers(const char *unit,
arg_join_controllers = t;
}
}
- if (!isempty(state))
- log_syntax(unit, LOG_ERR, filename, line, EINVAL,
- "Trailing garbage, ignoring.");
+ if (!isempty(rvalue))
+ log_syntax(unit, LOG_ERR, filename, line, 0, "Trailing garbage, ignoring.");
return 0;
}
+static DEFINE_CONFIG_PARSE_ENUM(config_parse_cad_burst_action, cad_burst_action, CADBurstAction, "Failed to parse service restart specifier");
+
static int parse_config_file(void) {
const ConfigTableItem items[] = {
@@ -632,14 +659,16 @@ static int parse_config_file(void) {
{ "Manager", "LogColor", config_parse_color, 0, NULL },
{ "Manager", "LogLocation", config_parse_location, 0, NULL },
{ "Manager", "DumpCore", config_parse_bool, 0, &arg_dump_core },
+ { "Manager", "CrashChVT", /* legacy */ config_parse_crash_chvt, 0, NULL },
+ { "Manager", "CrashChangeVT", config_parse_crash_chvt, 0, NULL },
{ "Manager", "CrashShell", config_parse_bool, 0, &arg_crash_shell },
+ { "Manager", "CrashReboot", config_parse_bool, 0, &arg_crash_reboot },
{ "Manager", "ShowStatus", config_parse_show_status, 0, &arg_show_status },
- { "Manager", "CrashChVT", config_parse_int, 0, &arg_crash_chvt },
{ "Manager", "CPUAffinity", config_parse_cpu_affinity2, 0, NULL },
{ "Manager", "JoinControllers", config_parse_join_controllers, 0, &arg_join_controllers },
{ "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", "CapabilityBoundingSet", config_parse_capability_set, 0, &arg_capability_bounding_set },
#ifdef HAVE_SECCOMP
{ "Manager", "SystemCallArchitectures", config_parse_syscall_archs, 0, &arg_syscall_archs },
#endif
@@ -650,37 +679,54 @@ static int parse_config_file(void) {
{ "Manager", "DefaultTimeoutStartSec", config_parse_sec, 0, &arg_default_timeout_start_usec },
{ "Manager", "DefaultTimeoutStopSec", config_parse_sec, 0, &arg_default_timeout_stop_usec },
{ "Manager", "DefaultRestartSec", config_parse_sec, 0, &arg_default_restart_usec },
- { "Manager", "DefaultStartLimitInterval", config_parse_sec, 0, &arg_default_start_limit_interval },
+ { "Manager", "DefaultStartLimitInterval", config_parse_sec, 0, &arg_default_start_limit_interval }, /* obsolete alias */
+ { "Manager", "DefaultStartLimitIntervalSec",config_parse_sec, 0, &arg_default_start_limit_interval },
{ "Manager", "DefaultStartLimitBurst", config_parse_unsigned, 0, &arg_default_start_limit_burst },
{ "Manager", "DefaultEnvironment", config_parse_environ, 0, &arg_default_environment },
- { "Manager", "DefaultLimitCPU", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_CPU] },
- { "Manager", "DefaultLimitFSIZE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_FSIZE] },
- { "Manager", "DefaultLimitDATA", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_DATA] },
- { "Manager", "DefaultLimitSTACK", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_STACK] },
- { "Manager", "DefaultLimitCORE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_CORE] },
- { "Manager", "DefaultLimitRSS", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_RSS] },
- { "Manager", "DefaultLimitNOFILE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NOFILE] },
- { "Manager", "DefaultLimitAS", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_AS] },
- { "Manager", "DefaultLimitNPROC", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NPROC] },
- { "Manager", "DefaultLimitMEMLOCK", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_MEMLOCK] },
- { "Manager", "DefaultLimitLOCKS", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_LOCKS] },
- { "Manager", "DefaultLimitSIGPENDING", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_SIGPENDING] },
- { "Manager", "DefaultLimitMSGQUEUE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_MSGQUEUE] },
- { "Manager", "DefaultLimitNICE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NICE] },
- { "Manager", "DefaultLimitRTPRIO", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_RTPRIO] },
- { "Manager", "DefaultLimitRTTIME", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_RTTIME] },
+ { "Manager", "DefaultLimitCPU", config_parse_limit, RLIMIT_CPU, arg_default_rlimit },
+ { "Manager", "DefaultLimitFSIZE", config_parse_limit, RLIMIT_FSIZE, arg_default_rlimit },
+ { "Manager", "DefaultLimitDATA", config_parse_limit, RLIMIT_DATA, arg_default_rlimit },
+ { "Manager", "DefaultLimitSTACK", config_parse_limit, RLIMIT_STACK, arg_default_rlimit },
+ { "Manager", "DefaultLimitCORE", config_parse_limit, RLIMIT_CORE, arg_default_rlimit },
+ { "Manager", "DefaultLimitRSS", config_parse_limit, RLIMIT_RSS, arg_default_rlimit },
+ { "Manager", "DefaultLimitNOFILE", config_parse_limit, RLIMIT_NOFILE, arg_default_rlimit },
+ { "Manager", "DefaultLimitAS", config_parse_limit, RLIMIT_AS, arg_default_rlimit },
+ { "Manager", "DefaultLimitNPROC", config_parse_limit, RLIMIT_NPROC, arg_default_rlimit },
+ { "Manager", "DefaultLimitMEMLOCK", config_parse_limit, RLIMIT_MEMLOCK, arg_default_rlimit },
+ { "Manager", "DefaultLimitLOCKS", config_parse_limit, RLIMIT_LOCKS, arg_default_rlimit },
+ { "Manager", "DefaultLimitSIGPENDING", config_parse_limit, RLIMIT_SIGPENDING, arg_default_rlimit },
+ { "Manager", "DefaultLimitMSGQUEUE", config_parse_limit, RLIMIT_MSGQUEUE, arg_default_rlimit },
+ { "Manager", "DefaultLimitNICE", config_parse_limit, RLIMIT_NICE, arg_default_rlimit },
+ { "Manager", "DefaultLimitRTPRIO", config_parse_limit, RLIMIT_RTPRIO, arg_default_rlimit },
+ { "Manager", "DefaultLimitRTTIME", config_parse_limit, RLIMIT_RTTIME, arg_default_rlimit },
{ "Manager", "DefaultCPUAccounting", config_parse_bool, 0, &arg_default_cpu_accounting },
+ { "Manager", "DefaultIOAccounting", config_parse_bool, 0, &arg_default_io_accounting },
{ "Manager", "DefaultBlockIOAccounting", config_parse_bool, 0, &arg_default_blockio_accounting },
{ "Manager", "DefaultMemoryAccounting", config_parse_bool, 0, &arg_default_memory_accounting },
+ { "Manager", "DefaultTasksAccounting", config_parse_bool, 0, &arg_default_tasks_accounting },
+ { "Manager", "DefaultTasksMax", config_parse_tasks_max, 0, &arg_default_tasks_max },
+ { "Manager", "CtrlAltDelBurstAction", config_parse_cad_burst_action, 0, &arg_cad_burst_action},
{}
};
const char *fn, *conf_dirs_nulstr;
- fn = arg_running_as == MANAGER_SYSTEM ? PKGSYSCONFDIR "/system.conf" : PKGSYSCONFDIR "/user.conf";
- conf_dirs_nulstr = arg_running_as == MANAGER_SYSTEM ? CONF_DIRS_NULSTR("systemd/system.conf") : CONF_DIRS_NULSTR("systemd/user.conf");
- config_parse_many(fn, conf_dirs_nulstr, "Manager\0",
- config_item_table_lookup, items, false, NULL);
+ fn = arg_system ?
+ PKGSYSCONFDIR "/system.conf" :
+ PKGSYSCONFDIR "/user.conf";
+
+ conf_dirs_nulstr = arg_system ?
+ CONF_PATHS_NULSTR("systemd/system.conf.d") :
+ CONF_PATHS_NULSTR("systemd/user.conf.d");
+
+ config_parse_many_nulstr(fn, conf_dirs_nulstr, "Manager\0", config_item_table_lookup, items, false, NULL);
+
+ /* Traditionally "0" was used to turn off the default unit timeouts. Fix this up so that we used USEC_INFINITY
+ * like everywhere else. */
+ if (arg_default_timeout_start_usec <= 0)
+ arg_default_timeout_start_usec = USEC_INFINITY;
+ if (arg_default_timeout_stop_usec <= 0)
+ arg_default_timeout_stop_usec = USEC_INFINITY;
return 0;
}
@@ -698,8 +744,11 @@ static void manager_set_defaults(Manager *m) {
m->default_start_limit_interval = arg_default_start_limit_interval;
m->default_start_limit_burst = arg_default_start_limit_burst;
m->default_cpu_accounting = arg_default_cpu_accounting;
+ m->default_io_accounting = arg_default_io_accounting;
m->default_blockio_accounting = arg_default_blockio_accounting;
m->default_memory_accounting = arg_default_memory_accounting;
+ m->default_tasks_accounting = arg_default_tasks_accounting;
+ m->default_tasks_max = arg_default_tasks_max;
manager_set_default_rlimits(m, arg_default_rlimit);
manager_environment_add(m, NULL, arg_default_environment);
@@ -720,13 +769,16 @@ static int parse_argv(int argc, char *argv[]) {
ARG_VERSION,
ARG_DUMP_CONFIGURATION_ITEMS,
ARG_DUMP_CORE,
+ ARG_CRASH_CHVT,
ARG_CRASH_SHELL,
+ ARG_CRASH_REBOOT,
ARG_CONFIRM_SPAWN,
ARG_SHOW_STATUS,
ARG_DESERIALIZE,
ARG_SWITCHED_ROOT,
ARG_DEFAULT_STD_OUTPUT,
- ARG_DEFAULT_STD_ERROR
+ ARG_DEFAULT_STD_ERROR,
+ ARG_MACHINE_ID
};
static const struct option options[] = {
@@ -743,13 +795,16 @@ static int parse_argv(int argc, char *argv[]) {
{ "version", no_argument, NULL, ARG_VERSION },
{ "dump-configuration-items", no_argument, NULL, ARG_DUMP_CONFIGURATION_ITEMS },
{ "dump-core", optional_argument, NULL, ARG_DUMP_CORE },
+ { "crash-chvt", required_argument, NULL, ARG_CRASH_CHVT },
{ "crash-shell", optional_argument, NULL, ARG_CRASH_SHELL },
+ { "crash-reboot", optional_argument, NULL, ARG_CRASH_REBOOT },
{ "confirm-spawn", optional_argument, NULL, ARG_CONFIRM_SPAWN },
{ "show-status", optional_argument, NULL, ARG_SHOW_STATUS },
{ "deserialize", required_argument, NULL, ARG_DESERIALIZE },
{ "switched-root", no_argument, NULL, ARG_SWITCHED_ROOT },
{ "default-standard-output", required_argument, NULL, ARG_DEFAULT_STD_OUTPUT, },
{ "default-standard-error", required_argument, NULL, ARG_DEFAULT_STD_ERROR, },
+ { "machine-id", required_argument, NULL, ARG_MACHINE_ID },
{}
};
@@ -828,24 +883,22 @@ static int parse_argv(int argc, char *argv[]) {
case ARG_UNIT:
- r = set_default_unit(optarg);
+ r = free_and_strdup(&arg_default_unit, optarg);
if (r < 0)
return log_error_errno(r, "Failed to set default unit %s: %m", optarg);
break;
case ARG_SYSTEM:
- arg_running_as = MANAGER_SYSTEM;
+ arg_system = true;
break;
case ARG_USER:
- arg_running_as = MANAGER_USER;
+ arg_system = false;
break;
case ARG_TEST:
arg_action = ACTION_TEST;
- if (arg_no_pager < 0)
- arg_no_pager = true;
break;
case ARG_NO_PAGER:
@@ -861,21 +914,42 @@ static int parse_argv(int argc, char *argv[]) {
break;
case ARG_DUMP_CORE:
- r = optarg ? parse_boolean(optarg) : 1;
- if (r < 0) {
- log_error("Failed to parse dump core boolean %s.", optarg);
- return r;
+ if (!optarg)
+ arg_dump_core = true;
+ else {
+ r = parse_boolean(optarg);
+ if (r < 0)
+ return log_error_errno(r, "Failed to parse dump core boolean: %s", optarg);
+ arg_dump_core = r;
}
- arg_dump_core = r;
+ break;
+
+ case ARG_CRASH_CHVT:
+ r = parse_crash_chvt(optarg);
+ if (r < 0)
+ return log_error_errno(r, "Failed to parse crash virtual terminal index: %s", optarg);
break;
case ARG_CRASH_SHELL:
- r = optarg ? parse_boolean(optarg) : 1;
- if (r < 0) {
- log_error("Failed to parse crash shell boolean %s.", optarg);
- return r;
+ if (!optarg)
+ arg_crash_shell = true;
+ else {
+ r = parse_boolean(optarg);
+ if (r < 0)
+ return log_error_errno(r, "Failed to parse crash shell boolean: %s", optarg);
+ arg_crash_shell = r;
+ }
+ break;
+
+ case ARG_CRASH_REBOOT:
+ if (!optarg)
+ arg_crash_reboot = true;
+ else {
+ r = parse_boolean(optarg);
+ if (r < 0)
+ return log_error_errno(r, "Failed to parse crash shell boolean: %s", optarg);
+ arg_crash_reboot = r;
}
- arg_crash_shell = r;
break;
case ARG_CONFIRM_SPAWN:
@@ -905,18 +979,16 @@ static int parse_argv(int argc, char *argv[]) {
r = safe_atoi(optarg, &fd);
if (r < 0 || fd < 0) {
log_error("Failed to parse deserialize option %s.", optarg);
- return r < 0 ? r : -EINVAL;
+ return -EINVAL;
}
- fd_cloexec(fd, true);
+ (void) fd_cloexec(fd, true);
f = fdopen(fd, "r");
if (!f)
return log_error_errno(errno, "Failed to open serialization fd: %m");
- if (arg_serialization)
- fclose(arg_serialization);
-
+ safe_fclose(arg_serialization);
arg_serialization = f;
break;
@@ -926,10 +998,14 @@ static int parse_argv(int argc, char *argv[]) {
arg_switched_root = true;
break;
+ case ARG_MACHINE_ID:
+ r = set_machine_id(optarg);
+ if (r < 0)
+ return log_error_errno(r, "MachineID '%s' is not valid.", optarg);
+ break;
+
case 'h':
arg_action = ACTION_HELP;
- if (arg_no_pager < 0)
- arg_no_pager = true;
break;
case 'D':
@@ -976,14 +1052,16 @@ static int help(void) {
" --unit=UNIT Set default unit\n"
" --system Run a system instance, even if PID != 1\n"
" --user Run a user instance\n"
- " --dump-core[=0|1] Dump core on crash\n"
- " --crash-shell[=0|1] Run shell on crash\n"
- " --confirm-spawn[=0|1] Ask for confirmation when spawning processes\n"
- " --show-status[=0|1] Show status updates on the console during bootup\n"
+ " --dump-core[=BOOL] Dump core on crash\n"
+ " --crash-vt=NR Change to specified VT on crash\n"
+ " --crash-reboot[=BOOL] Reboot on crash\n"
+ " --crash-shell[=BOOL] Run shell on crash\n"
+ " --confirm-spawn[=BOOL] Ask for confirmation when spawning processes\n"
+ " --show-status[=BOOL] Show status updates on the console during bootup\n"
" --log-target=TARGET Set log target (console, journal, kmsg, journal-or-kmsg, null)\n"
" --log-level=LEVEL Set log level (debug, info, notice, warning, err, crit, alert, emerg)\n"
- " --log-color[=0|1] Highlight important log messages\n"
- " --log-location[=0|1] Include code location in log messages\n"
+ " --log-color[=BOOL] Highlight important log messages\n"
+ " --log-location[=BOOL] Include code location in log messages\n"
" --default-standard-output= Set default standard output for services\n"
" --default-standard-error= Set default standard error output for services\n",
program_invocation_short_name);
@@ -991,16 +1069,9 @@ static int help(void) {
return 0;
}
-static int version(void) {
- puts(PACKAGE_STRING);
- puts(SYSTEMD_FEATURES);
-
- return 0;
-}
-
static int prepare_reexecute(Manager *m, FILE **_f, FDSet **_fds, bool switching_root) {
- FILE *f = NULL;
- FDSet *fds = NULL;
+ _cleanup_fdset_free_ FDSet *fds = NULL;
+ _cleanup_fclose_ FILE *f = NULL;
int r;
assert(m);
@@ -1008,57 +1079,39 @@ static int prepare_reexecute(Manager *m, FILE **_f, FDSet **_fds, bool switching
assert(_fds);
r = manager_open_serialization(m, &f);
- if (r < 0) {
- log_error_errno(r, "Failed to create serialization file: %m");
- goto fail;
- }
+ if (r < 0)
+ return log_error_errno(r, "Failed to create serialization file: %m");
/* Make sure nothing is really destructed when we shut down */
- m->n_reloading ++;
+ m->n_reloading++;
bus_manager_send_reloading(m, true);
fds = fdset_new();
- if (!fds) {
- r = -ENOMEM;
- log_error_errno(r, "Failed to allocate fd set: %m");
- goto fail;
- }
+ if (!fds)
+ return log_oom();
r = manager_serialize(m, f, fds, switching_root);
- if (r < 0) {
- log_error_errno(r, "Failed to serialize state: %m");
- goto fail;
- }
+ if (r < 0)
+ return log_error_errno(r, "Failed to serialize state: %m");
- if (fseeko(f, 0, SEEK_SET) < 0) {
- log_error_errno(errno, "Failed to rewind serialization fd: %m");
- goto fail;
- }
+ if (fseeko(f, 0, SEEK_SET) == (off_t) -1)
+ return log_error_errno(errno, "Failed to rewind serialization fd: %m");
r = fd_cloexec(fileno(f), false);
- if (r < 0) {
- log_error_errno(r, "Failed to disable O_CLOEXEC for serialization: %m");
- goto fail;
- }
+ if (r < 0)
+ return log_error_errno(r, "Failed to disable O_CLOEXEC for serialization: %m");
r = fdset_cloexec(fds, false);
- if (r < 0) {
- log_error_errno(r, "Failed to disable O_CLOEXEC for serialization fds: %m");
- goto fail;
- }
+ if (r < 0)
+ return log_error_errno(r, "Failed to disable O_CLOEXEC for serialization fds: %m");
*_f = f;
*_fds = fds;
- return 0;
-
-fail:
- fdset_free(fds);
-
- if (f)
- fclose(f);
+ f = NULL;
+ fds = NULL;
- return r;
+ return 0;
}
static int bump_rlimit_nofile(struct rlimit *saved_rlimit) {
@@ -1093,32 +1146,6 @@ static int bump_rlimit_nofile(struct rlimit *saved_rlimit) {
return 0;
}
-static void test_mtab(void) {
-
- static const char ok[] =
- "/proc/self/mounts\0"
- "/proc/mounts\0"
- "../proc/self/mounts\0"
- "../proc/mounts\0";
-
- _cleanup_free_ char *p = NULL;
- int r;
-
- /* Check that /etc/mtab is a symlink to the right place or
- * non-existing. But certainly not a file, or a symlink to
- * some weird place... */
-
- r = readlink_malloc("/etc/mtab", &p);
- if (r == -ENOENT)
- return;
- if (r >= 0 && nulstr_contains(ok, p))
- return;
-
- log_warning("/etc/mtab is not a symlink or not pointing to /proc/self/mounts. "
- "This is not supported anymore. "
- "Please make sure to replace this file by a symlink to avoid incorrect or misleading mount(8) output.");
-}
-
static void test_usr(void) {
/* Check that /usr is not a separate fs */
@@ -1142,15 +1169,19 @@ static int initialize_join_controllers(void) {
return -ENOMEM;
arg_join_controllers[0] = strv_new("cpu", "cpuacct", NULL);
- arg_join_controllers[1] = strv_new("net_cls", "net_prio", NULL);
- arg_join_controllers[2] = NULL;
+ if (!arg_join_controllers[0])
+ goto oom;
- if (!arg_join_controllers[0] || !arg_join_controllers[1]) {
- free_join_controllers();
- return -ENOMEM;
- }
+ arg_join_controllers[1] = strv_new("net_cls", "net_prio", NULL);
+ if (!arg_join_controllers[1])
+ goto oom;
+ arg_join_controllers[2] = NULL;
return 0;
+
+oom:
+ arg_join_controllers = strv_free_free(arg_join_controllers);
+ return -ENOMEM;
}
static int enforce_syscall_archs(Set *archs) {
@@ -1160,6 +1191,9 @@ static int enforce_syscall_archs(Set *archs) {
void *id;
int r;
+ if (!is_seccomp_available())
+ return 0;
+
seccomp = seccomp_init(SCMP_ACT_ALLOW);
if (!seccomp)
return log_oom();
@@ -1200,30 +1234,107 @@ static int status_welcome(void) {
"PRETTY_NAME", &pretty_name,
"ANSI_COLOR", &ansi_color,
NULL);
- if (r == -ENOENT) {
+ if (r == -ENOENT)
r = parse_env_file("/usr/lib/os-release", NEWLINE,
"PRETTY_NAME", &pretty_name,
"ANSI_COLOR", &ansi_color,
NULL);
- }
if (r < 0 && r != -ENOENT)
log_warning_errno(r, "Failed to read os-release file: %m");
- return status_printf(NULL, false, false,
- "\nWelcome to \x1B[%sm%s\x1B[0m!\n",
- isempty(ansi_color) ? "1" : ansi_color,
- isempty(pretty_name) ? "Linux" : pretty_name);
+ if (log_get_show_color())
+ return status_printf(NULL, false, false,
+ "\nWelcome to \x1B[%sm%s\x1B[0m!\n",
+ isempty(ansi_color) ? "1" : ansi_color,
+ isempty(pretty_name) ? "Linux" : pretty_name);
+ else
+ return status_printf(NULL, false, false,
+ "\nWelcome to %s!\n",
+ isempty(pretty_name) ? "Linux" : pretty_name);
}
static int write_container_id(void) {
const char *c;
+ int r;
c = getenv("container");
if (isempty(c))
return 0;
- return write_string_file("/run/systemd/container", c, WRITE_STRING_FILE_CREATE);
+ RUN_WITH_UMASK(0022)
+ r = write_string_file("/run/systemd/container", c, WRITE_STRING_FILE_CREATE);
+ if (r < 0)
+ return log_warning_errno(r, "Failed to write /run/systemd/container, ignoring: %m");
+
+ return 1;
+}
+
+static int bump_unix_max_dgram_qlen(void) {
+ _cleanup_free_ char *qlen = NULL;
+ 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. */
+
+ r = read_one_line_file("/proc/sys/net/unix/max_dgram_qlen", &qlen);
+ if (r < 0)
+ return log_warning_errno(r, "Failed to read AF_UNIX datagram queue length, ignoring: %m");
+
+ r = safe_atolu(qlen, &v);
+ if (r < 0)
+ return log_warning_errno(r, "Failed to parse AF_UNIX datagram queue length, ignoring: %m");
+
+ 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);
+ 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");
+
+ return 1;
+}
+
+static int fixup_environment(void) {
+ _cleanup_free_ char *term = NULL;
+ int r;
+
+ /* We expect the environment to be set correctly
+ * if run inside a container. */
+ if (detect_container() > 0)
+ return 0;
+
+ /* When started as PID1, the kernel uses /dev/console
+ * for our stdios and uses TERM=linux whatever the
+ * backend device used by the console. We try to make
+ * a better guess here since some consoles might not
+ * have support for color mode for example.
+ *
+ * However if TERM was configured through the kernel
+ * command line then leave it alone. */
+
+ r = get_proc_cmdline_key("TERM=", &term);
+ if (r < 0)
+ return r;
+
+ if (r == 0) {
+ term = strdup(default_term_for_tty("/dev/console"));
+ if (!term)
+ return -ENOMEM;
+ }
+
+ if (setenv("TERM", term, 1) < 0)
+ return -errno;
+
+ return 0;
}
int main(int argc, char *argv[]) {
@@ -1255,7 +1366,6 @@ int main(int argc, char *argv[]) {
/* This is compatibility support for SysV, where
* calling init as a user is identical to telinit. */
- errno = -ENOENT;
execv(SYSTEMCTL_BINARY_PATH, argv);
log_error_errno(errno, "Failed to exec " SYSTEMCTL_BINARY_PATH ": %m");
return 1;
@@ -1286,18 +1396,16 @@ int main(int argc, char *argv[]) {
saved_argv = argv;
saved_argc = argc;
- log_show_color(isatty(STDERR_FILENO) > 0);
log_set_upgrade_syslog_to_journal(true);
/* Disable the umask logic */
if (getpid() == 1)
umask(0);
- if (getpid() == 1 && detect_container(NULL) <= 0) {
+ if (getpid() == 1 && detect_container() <= 0) {
/* Running outside of a container as PID 1 */
- arg_running_as = MANAGER_SYSTEM;
- make_null_stdio();
+ arg_system = true;
log_set_target(LOG_TARGET_KMSG);
log_open();
@@ -1305,28 +1413,32 @@ int main(int argc, char *argv[]) {
initrd_timestamp = userspace_timestamp;
if (!skip_setup) {
- mount_setup_early();
+ r = mount_setup_early();
+ if (r < 0) {
+ error_message = "Failed to early mount API filesystems";
+ goto finish;
+ }
dual_timestamp_get(&security_start_timestamp);
if (mac_selinux_setup(&loaded_policy) < 0) {
error_message = "Failed to load SELinux policy";
goto finish;
- } else if (ima_setup() < 0) {
- error_message = "Failed to load IMA policy";
- goto finish;
} else if (mac_smack_setup(&loaded_policy) < 0) {
error_message = "Failed to load SMACK policy";
goto finish;
+ } else if (ima_setup() < 0) {
+ error_message = "Failed to load IMA policy";
+ goto finish;
}
dual_timestamp_get(&security_finish_timestamp);
}
- if (mac_selinux_init(NULL) < 0) {
+ if (mac_selinux_init() < 0) {
error_message = "Failed to initialize SELinux policy";
goto finish;
}
if (!skip_setup) {
- if (clock_is_localtime() > 0) {
+ if (clock_is_localtime(NULL) > 0) {
int min;
/*
@@ -1346,7 +1458,7 @@ int main(int argc, char *argv[]) {
/*
* Do a dummy very first call to seal the kernel's time warp magic.
*
- * Do not call this this from inside the initrd. The initrd might not
+ * Do not call 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.
@@ -1356,8 +1468,14 @@ int main(int argc, char *argv[]) {
* saving time change. All kernel local time concepts will be treated
* as UTC that way.
*/
- clock_reset_timewarp();
+ (void) clock_reset_timewarp();
}
+
+ r = clock_apply_epoch();
+ if (r < 0)
+ log_error_errno(r, "Current system time is before build time, but cannot correct: %m");
+ else if (r > 0)
+ log_info("System time before build time, advancing clock.");
}
/* Set the default for later on, but don't actually
@@ -1370,7 +1488,7 @@ int main(int argc, char *argv[]) {
} else if (getpid() == 1) {
/* Running inside a container, as PID 1 */
- arg_running_as = MANAGER_SYSTEM;
+ arg_system = true;
log_set_target(LOG_TARGET_CONSOLE);
log_close_console(); /* force reopen of /dev/console */
log_open();
@@ -1380,27 +1498,43 @@ int main(int argc, char *argv[]) {
/* clear the kernel timestamp,
* because we are in a container */
- kernel_timestamp.monotonic = 0ULL;
- kernel_timestamp.realtime = 0ULL;
-
+ kernel_timestamp = DUAL_TIMESTAMP_NULL;
} else {
/* Running as user instance */
- arg_running_as = MANAGER_USER;
+ arg_system = false;
log_set_target(LOG_TARGET_AUTO);
log_open();
/* clear the kernel timestamp,
* because we are not PID 1 */
- kernel_timestamp.monotonic = 0ULL;
- kernel_timestamp.realtime = 0ULL;
+ kernel_timestamp = DUAL_TIMESTAMP_NULL;
}
- /* Initialize default unit */
- r = set_default_unit(SPECIAL_DEFAULT_TARGET);
- if (r < 0) {
- log_emergency_errno(r, "Failed to set default unit %s: %m", SPECIAL_DEFAULT_TARGET);
- error_message = "Failed to set default unit";
- goto finish;
+ if (getpid() == 1) {
+ /* Don't limit the core dump size, so that coredump handlers such as systemd-coredump (which honour the limit)
+ * will process core dumps for system services by default. */
+ if (setrlimit(RLIMIT_CORE, &RLIMIT_MAKE_CONST(RLIM_INFINITY)) < 0)
+ log_warning_errno(errno, "Failed to set RLIMIT_CORE: %m");
+
+ /* But at the same time, turn off the core_pattern logic by default, so that no coredumps are stored
+ * until the systemd-coredump tool is enabled via sysctl. */
+ if (!skip_setup)
+ (void) write_string_file("/proc/sys/kernel/core_pattern", "|/bin/false", 0);
+ }
+
+ if (arg_system) {
+ if (fixup_environment() < 0) {
+ error_message = "Failed to fix up PID1 environment";
+ goto finish;
+ }
+
+ /* 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");
}
r = initialize_join_controllers();
@@ -1428,12 +1562,14 @@ int main(int argc, char *argv[]) {
(void) reset_all_signal_handlers();
(void) ignore_signals(SIGNALS_IGNORE, -1);
+ arg_default_tasks_max = system_tasks_max_scale(DEFAULT_TASKS_MAX_PERCENTAGE, 100U);
+
if (parse_config_file() < 0) {
error_message = "Failed to parse config file";
goto finish;
}
- if (arg_running_as == MANAGER_SYSTEM) {
+ if (arg_system) {
r = parse_proc_cmdline(parse_proc_cmdline_item);
if (r < 0)
log_warning_errno(r, "Failed to parse kernel command line, ignoring: %m");
@@ -1448,30 +1584,40 @@ int main(int argc, char *argv[]) {
goto finish;
}
+ /* Initialize default unit */
+ if (!arg_default_unit) {
+ arg_default_unit = strdup(SPECIAL_DEFAULT_TARGET);
+ if (!arg_default_unit) {
+ r = log_oom();
+ error_message = "Failed to set default unit";
+ goto finish;
+ }
+ }
+
if (arg_action == ACTION_TEST &&
geteuid() == 0) {
log_error("Don't run test mode as root.");
goto finish;
}
- if (arg_running_as == MANAGER_USER &&
+ if (!arg_system &&
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 == MANAGER_SYSTEM &&
+ if (arg_system &&
arg_action == ACTION_RUN &&
running_in_chroot() > 0) {
log_error("Cannot be run in a chroot() environment.");
goto finish;
}
- if (arg_action == ACTION_TEST)
+ if (arg_action == ACTION_TEST || arg_action == ACTION_HELP) {
+ pager_open(arg_no_pager, false);
skip_setup = true;
-
- pager_open_if_enabled();
+ }
if (arg_action == ACTION_HELP) {
retval = help();
@@ -1480,15 +1626,13 @@ int main(int argc, char *argv[]) {
retval = version();
goto finish;
} else if (arg_action == ACTION_DUMP_CONFIGURATION_ITEMS) {
+ pager_open(arg_no_pager, false);
unit_dump_config_items(stdout);
retval = EXIT_SUCCESS;
goto finish;
- } else if (arg_action == ACTION_DONE) {
- retval = EXIT_SUCCESS;
- goto finish;
}
- if (arg_running_as == MANAGER_USER &&
+ if (!arg_system &&
!getenv("XDG_RUNTIME_DIR")) {
log_error("Trying to run as user instance, but $XDG_RUNTIME_DIR is not set.");
goto finish;
@@ -1511,7 +1655,7 @@ int main(int argc, char *argv[]) {
if (arg_serialization)
assert_se(fdset_remove(fds, fileno(arg_serialization)) >= 0);
- if (arg_running_as == MANAGER_SYSTEM)
+ if (arg_system)
/* Become a session leader if we aren't one yet. */
setsid();
@@ -1520,7 +1664,7 @@ int main(int argc, char *argv[]) {
/* 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_system && arg_action == ACTION_RUN) {
/* If we are init, we connect stdin/stdout/stderr to
* /dev/null and make sure we don't have a controlling
@@ -1547,15 +1691,15 @@ int main(int argc, char *argv[]) {
goto finish;
}
- if (arg_running_as == MANAGER_SYSTEM) {
- const char *virtualization = NULL;
+ if (arg_system) {
+ int v;
log_info(PACKAGE_STRING " running in %ssystem mode. (" SYSTEMD_FEATURES ")",
arg_action == ACTION_TEST ? "test " : "" );
- detect_virtualization(&virtualization);
- if (virtualization)
- log_info("Detected virtualization %s.", virtualization);
+ v = detect_virtualization();
+ if (v > 0)
+ log_info("Detected virtualization %s.", virtualization_to_string(v));
write_container_id();
@@ -1583,33 +1727,33 @@ int main(int argc, char *argv[]) {
arg_action == ACTION_TEST ? " test" : "", getuid(), t);
}
- if (arg_running_as == MANAGER_SYSTEM && !skip_setup) {
+ if (arg_system && !skip_setup) {
if (arg_show_status > 0)
status_welcome();
hostname_setup();
- machine_id_setup(NULL);
+ machine_id_setup(NULL, arg_machine_id, NULL);
loopback_setup();
+ bump_unix_max_dgram_qlen();
- test_mtab();
test_usr();
}
- if (arg_running_as == MANAGER_SYSTEM && arg_runtime_watchdog > 0)
+ if (arg_system && arg_runtime_watchdog > 0 && arg_runtime_watchdog != USEC_INFINITY)
watchdog_set_timeout(&arg_runtime_watchdog);
if (arg_timer_slack_nsec != NSEC_INFINITY)
if (prctl(PR_SET_TIMERSLACK, arg_timer_slack_nsec) < 0)
log_error_errno(errno, "Failed to adjust timer slack: %m");
- if (arg_capability_bounding_set_drop) {
- r = capability_bounding_set_drop_usermode(arg_capability_bounding_set_drop);
+ if (!cap_test_all(arg_capability_bounding_set)) {
+ r = capability_bounding_set_drop_usermode(arg_capability_bounding_set);
if (r < 0) {
log_emergency_errno(r, "Failed to drop capability bounding set of usermode helpers: %m");
error_message = "Failed to drop capability bounding set of usermode helpers";
goto finish;
}
- r = capability_bounding_set_drop(arg_capability_bounding_set_drop, true);
+ r = capability_bounding_set_drop(arg_capability_bounding_set, true);
if (r < 0) {
log_emergency_errno(r, "Failed to drop capability bounding set: %m");
error_message = "Failed to drop capability bounding set";
@@ -1625,24 +1769,24 @@ int main(int argc, char *argv[]) {
}
}
- if (arg_running_as == MANAGER_USER)
+ if (!arg_system)
/* Become reaper of our children */
if (prctl(PR_SET_CHILD_SUBREAPER, 1) < 0)
log_warning_errno(errno, "Failed to make us a subreaper: %m");
- if (arg_running_as == MANAGER_SYSTEM) {
+ if (arg_system) {
bump_rlimit_nofile(&saved_rlimit_nofile);
if (empty_etc) {
r = unit_file_preset_all(UNIT_FILE_SYSTEM, false, NULL, UNIT_FILE_PRESET_ENABLE_ONLY, false, NULL, 0);
if (r < 0)
- log_warning_errno(r, "Failed to populate /etc with preset unit settings, ignoring: %m");
+ log_full_errno(r == -EEXIST ? LOG_NOTICE : LOG_WARNING, r, "Failed to populate /etc with preset unit settings, ignoring: %m");
else
log_info("Populated /etc with preset unit settings.");
}
}
- r = manager_new(arg_running_as, arg_action == ACTION_TEST, &m);
+ r = manager_new(arg_system ? UNIT_FILE_SYSTEM : UNIT_FILE_USER, arg_action == ACTION_TEST, &m);
if (r < 0) {
log_emergency_errno(r, "Failed to allocate manager object: %m");
error_message = "Failed to allocate manager object";
@@ -1657,6 +1801,7 @@ int main(int argc, char *argv[]) {
m->initrd_timestamp = initrd_timestamp;
m->security_start_timestamp = security_start_timestamp;
m->security_finish_timestamp = security_finish_timestamp;
+ m->cad_burst_action = arg_cad_burst_action;
manager_set_defaults(m);
manager_set_show_status(m, arg_show_status);
@@ -1673,16 +1818,12 @@ int main(int argc, char *argv[]) {
/* This will close all file descriptors that were opened, but
* not claimed by any unit. */
- fdset_free(fds);
- fds = NULL;
+ fds = fdset_free(fds);
- if (arg_serialization) {
- fclose(arg_serialization);
- arg_serialization = NULL;
- }
+ arg_serialization = safe_fclose(arg_serialization);
if (queue_default_job) {
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
+ _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
Unit *target = NULL;
Job *default_unit_job;
@@ -1722,11 +1863,13 @@ int main(int argc, char *argv[]) {
manager_dump_units(m, stdout, "\t");
}
- r = manager_add_job(m, JOB_START, target, JOB_ISOLATE, false, &error, &default_unit_job);
+ r = manager_add_job(m, JOB_START, target, JOB_ISOLATE, &error, &default_unit_job);
if (r == -EPERM) {
log_debug("Default target could not be isolated, starting instead: %s", bus_error_message(&error, r));
- r = manager_add_job(m, JOB_START, target, JOB_REPLACE, false, &error, &default_unit_job);
+ sd_bus_error_free(&error);
+
+ r = manager_add_job(m, JOB_START, target, JOB_REPLACE, &error, &default_unit_job);
if (r < 0) {
log_emergency("Failed to start default target: %s", bus_error_message(&error, r));
error_message = "Failed to start default target";
@@ -1763,11 +1906,6 @@ int main(int argc, char *argv[]) {
switch (m->exit_code) {
- case MANAGER_EXIT:
- retval = EXIT_SUCCESS;
- log_debug("Exit.");
- goto finish;
-
case MANAGER_RELOAD:
log_info("Reloading.");
@@ -1785,7 +1923,7 @@ int main(int argc, char *argv[]) {
case MANAGER_REEXECUTE:
if (prepare_reexecute(m, &arg_serialization, &fds, false) < 0) {
- error_message = "Failed to prepare for reexection";
+ error_message = "Failed to prepare for reexecution";
goto finish;
}
@@ -1801,7 +1939,7 @@ int main(int argc, char *argv[]) {
if (!switch_root_init)
if (prepare_reexecute(m, &arg_serialization, &fds, true) < 0) {
- error_message = "Failed to prepare for reexection";
+ error_message = "Failed to prepare for reexecution";
goto finish;
}
@@ -1809,11 +1947,21 @@ int main(int argc, char *argv[]) {
log_notice("Switching root.");
goto finish;
+ case MANAGER_EXIT:
+ retval = m->return_value;
+
+ if (MANAGER_IS_USER(m)) {
+ log_debug("Exit.");
+ goto finish;
+ }
+
+ /* fallthrough */
case MANAGER_REBOOT:
case MANAGER_POWEROFF:
case MANAGER_HALT:
case MANAGER_KEXEC: {
static const char * const table[_MANAGER_EXIT_CODE_MAX] = {
+ [MANAGER_EXIT] = "exit",
[MANAGER_REBOOT] = "reboot",
[MANAGER_POWEROFF] = "poweroff",
[MANAGER_HALT] = "halt",
@@ -1837,23 +1985,16 @@ finish:
if (m)
arg_shutdown_watchdog = m->shutdown_watchdog;
- m = manager_free(m);
-
- for (j = 0; j < ELEMENTSOF(arg_default_rlimit); j++) {
- free(arg_default_rlimit[j]);
- arg_default_rlimit[j] = NULL;
- }
- free(arg_default_unit);
- arg_default_unit = NULL;
-
- free_join_controllers();
+ m = manager_free(m);
- strv_free(arg_default_environment);
- arg_default_environment = NULL;
+ for (j = 0; j < ELEMENTSOF(arg_default_rlimit); j++)
+ arg_default_rlimit[j] = mfree(arg_default_rlimit[j]);
- set_free(arg_syscall_archs);
- arg_syscall_archs = NULL;
+ arg_default_unit = mfree(arg_default_unit);
+ arg_join_controllers = strv_free_free(arg_join_controllers);
+ arg_default_environment = strv_free(arg_default_environment);
+ arg_syscall_archs = set_free(arg_syscall_archs);
mac_selinux_finish();
@@ -1870,7 +2011,7 @@ finish:
* 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);
+ (void) setrlimit(RLIMIT_NOFILE, &saved_rlimit_nofile);
if (switch_root_dir) {
/* Kill all remaining processes from the
@@ -1905,17 +2046,22 @@ finish:
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_system ? "--system" : "--user";
args[i++] = "--deserialize";
args[i++] = sfd;
args[i++] = NULL;
- /* do not pass along the environment we inherit from the kernel or initrd */
- if (switch_root_dir)
- clearenv();
-
assert(i <= args_size);
- execv(args[0], (char* const*) args);
+
+ /*
+ * We want valgrind to print its memory usage summary before reexecution.
+ * Valgrind won't do this is on its own on exec(), but it will do it on exit().
+ * Hence, to ensure we get a summary here, fork() off a child, let it exit() cleanly,
+ * so that it prints the summary, and wait() for it in the parent, before proceeding into the exec().
+ */
+ valgrind_summary_hack();
+
+ (void) execv(args[0], (char* const*) args);
}
/* Try the fallback, if there is any, without any
@@ -1924,18 +2070,11 @@ finish:
* getopt() in argv[], and some cleanups in envp[],
* but let's hope that doesn't matter.) */
- if (arg_serialization) {
- fclose(arg_serialization);
- arg_serialization = NULL;
- }
-
- if (fds) {
- fdset_free(fds);
- fds = NULL;
- }
+ arg_serialization = safe_fclose(arg_serialization);
+ fds = fdset_free(fds);
/* Reopen the console */
- make_console_stdio();
+ (void) make_console_stdio();
for (j = 1, i = 1; j < (unsigned) argc; j++)
args[i++] = argv[j];
@@ -1949,33 +2088,26 @@ finish:
if (switch_root_init) {
args[0] = switch_root_init;
- execv(args[0], (char* const*) args);
+ (void) execv(args[0], (char* const*) args);
log_warning_errno(errno, "Failed to execute configured init, trying fallback: %m");
}
args[0] = "/sbin/init";
- execv(args[0], (char* const*) args);
+ (void) execv(args[0], (char* const*) args);
if (errno == ENOENT) {
log_warning("No /sbin/init, trying fallback");
args[0] = "/bin/sh";
args[1] = NULL;
- execv(args[0], (char* const*) args);
+ (void) execv(args[0], (char* const*) args);
log_error_errno(errno, "Failed to execute /bin/sh, giving up: %m");
} else
log_warning_errno(errno, "Failed to execute /sbin/init, giving up: %m");
}
- if (arg_serialization) {
- fclose(arg_serialization);
- arg_serialization = NULL;
- }
-
- if (fds) {
- fdset_free(fds);
- fds = NULL;
- }
+ arg_serialization = safe_fclose(arg_serialization);
+ fds = fdset_free(fds);
#ifdef HAVE_VALGRIND_VALGRIND_H
/* If we are PID 1 and running under valgrind, then let's exit
@@ -1988,7 +2120,8 @@ finish:
if (shutdown_verb) {
char log_level[DECIMAL_STR_MAX(int) + 1];
- const char* command_line[9] = {
+ char exit_code[DECIMAL_STR_MAX(uint8_t) + 1];
+ const char* command_line[11] = {
SYSTEMD_SHUTDOWN_BINARY_PATH,
shutdown_verb,
"--log-level", log_level,
@@ -2003,6 +2136,7 @@ finish:
xsprintf(log_level, "%d", log_get_max_level());
switch (log_get_target()) {
+
case LOG_TARGET_KMSG:
case LOG_TARGET_JOURNAL_OR_KMSG:
case LOG_TARGET_SYSLOG_OR_KMSG:
@@ -2025,9 +2159,15 @@ finish:
if (log_get_show_location())
command_line[pos++] = "--log-location";
+ if (streq(shutdown_verb, "exit")) {
+ command_line[pos++] = "--exit-code";
+ command_line[pos++] = exit_code;
+ xsprintf(exit_code, "%d", retval);
+ }
+
assert(pos < ELEMENTSOF(command_line));
- if (arm_reboot_watchdog && arg_shutdown_watchdog > 0) {
+ if (arm_reboot_watchdog && arg_shutdown_watchdog > 0 && arg_shutdown_watchdog != USEC_INFINITY) {
char *e;
/* If we reboot let's set the shutdown
@@ -2038,15 +2178,15 @@ finish:
/* Tell the binary how often to ping, ignore failure */
if (asprintf(&e, "WATCHDOG_USEC="USEC_FMT, arg_shutdown_watchdog) > 0)
- strv_push(&env_block, e);
+ (void) strv_push(&env_block, e);
} else
watchdog_close(true);
/* Avoid the creation of new processes forked by the
* kernel; at this point, we will not listen to the
* signals anyway */
- if (detect_container(NULL) <= 0)
- cg_uninstall_release_agent(SYSTEMD_CGROUP_CONTROLLER);
+ if (detect_container() <= 0)
+ (void) cg_uninstall_release_agent(SYSTEMD_CGROUP_CONTROLLER);
execve(SYSTEMD_SHUTDOWN_BINARY_PATH, (char **) command_line, env_block);
log_error_errno(errno, "Failed to execute shutdown binary, %s: %m",
@@ -2056,9 +2196,9 @@ finish:
if (getpid() == 1) {
if (error_message)
manager_status_printf(NULL, STATUS_TYPE_EMERGENCY,
- ANSI_HIGHLIGHT_RED_ON "!!!!!!" ANSI_HIGHLIGHT_OFF,
+ ANSI_HIGHLIGHT_RED "!!!!!!" ANSI_NORMAL,
"%s, freezing.", error_message);
- freeze();
+ freeze_or_reboot();
}
return retval;
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-07-23 01:10:15 +0000