main.c revision ecee72e1b6c3476b674b58472c483fc4aef7ceed
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering/***
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering This file is part of systemd.
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering Copyright 2010 Lennart Poettering
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering systemd is free software; you can redistribute it and/or modify it
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering under the terms of the GNU Lesser General Public License as published by
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering the Free Software Foundation; either version 2.1 of the License, or
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering (at your option) any later version.
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering systemd is distributed in the hope that it will be useful, but
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering WITHOUT ANY WARRANTY; without even the implied warranty of
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering Lesser General Public License for more details.
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering You should have received a copy of the GNU Lesser General Public License
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering along with systemd; If not, see <http://www.gnu.org/licenses/>.
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering***/
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include <errno.h>
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include <fcntl.h>
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include <getopt.h>
96115cdfe0241ae9b4e7177cd3874c0a93d00b39Thomas Hindoe Paaboel Andersen#include <signal.h>
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include <stdio.h>
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering#include <string.h>
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering#include <sys/mount.h>
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include <sys/prctl.h>
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include <sys/reboot.h>
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include <sys/stat.h>
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include <unistd.h>
1ca208fb4f93e5869704af1812cbff7130a2fc03Zbigniew Jędrzejewski-Szmek#ifdef HAVE_SECCOMP
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include <seccomp.h>
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#endif
9a5cb1371b6d8b0a04bd08665bcf9b06cb40c64cZbigniew Jędrzejewski-Szmek#ifdef HAVE_VALGRIND_VALGRIND_H
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering#include <valgrind/valgrind.h>
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering#endif
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering#include "sd-daemon.h"
1b9e5b126359a2a2ec37de1f94f046093abc74b8Lennart Poettering#include "sd-bus.h"
f9ac15442e4132f00eca5495d53c17062aae13e0Lennart Poettering
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include "alloc-util.h"
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include "architecture.h"
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering#include "build.h"
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering#include "bus-error.h"
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering#include "bus-util.h"
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include "capability-util.h"
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering#include "clock-util.h"
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include "conf-parser.h"
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include "cpu-set-util.h"
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include "dbus-manager.h"
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering#include "def.h"
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering#include "env-util.h"
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering#include "fd-util.h"
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include "fdset.h"
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include "fileio.h"
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include "formats-util.h"
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include "fs-util.h"
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include "hostname-setup.h"
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include "ima-setup.h"
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include "killall.h"
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include "kmod-setup.h"
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include "load-fragment.h"
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include "log.h"
4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt#include "loopback-setup.h"
4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt#include "machine-id-setup.h"
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include "manager.h"
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include "missing.h"
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include "mount-setup.h"
1ebab691c7749779072741f71865bd0e055b7ecfLennart Poettering#include "pager.h"
c3834f9b881f2b1a68dc7d797c134f0b66b47b57Lennart Poettering#include "parse-util.h"
c3834f9b881f2b1a68dc7d797c134f0b66b47b57Lennart Poettering#include "proc-cmdline.h"
ee530d8b73246f29781bd54a707ca75c7ef5a6cbLennart Poettering#include "process-util.h"
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include "rlimit-util.h"
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include "selinux-setup.h"
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include "selinux-util.h"
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include "signal-util.h"
4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt#include "smack-setup.h"
4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt#include "special.h"
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include "stat-util.h"
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include "stdio-util.h"
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include "strv.h"
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include "switch-root.h"
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include "terminal-util.h"
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering#include "user-util.h"
4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt#include "virt.h"
4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt#include "watchdog.h"
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poetteringstatic enum {
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering ACTION_RUN,
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering ACTION_HELP,
cca1dfddd4ce4357113663532696488427cc54e4Lennart Poettering ACTION_VERSION,
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering ACTION_TEST,
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering ACTION_DUMP_CONFIGURATION_ITEMS,
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering ACTION_DONE
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering} arg_action = ACTION_RUN;
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poetteringstatic char *arg_default_unit = NULL;
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poetteringstatic ManagerRunningAs arg_running_as = _MANAGER_RUNNING_AS_INVALID;
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poetteringstatic bool arg_dump_core = true;
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poetteringstatic int arg_crash_chvt = -1;
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poetteringstatic bool arg_crash_shell = false;
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poetteringstatic bool arg_crash_reboot = false;
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poetteringstatic bool arg_confirm_spawn = false;
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poetteringstatic ShowStatus arg_show_status = _SHOW_STATUS_UNSET;
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poetteringstatic bool arg_switched_root = false;
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poetteringstatic int arg_no_pager = -1;
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poetteringstatic char ***arg_join_controllers = NULL;
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poetteringstatic ExecOutput arg_default_std_output = EXEC_OUTPUT_JOURNAL;
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poetteringstatic ExecOutput arg_default_std_error = EXEC_OUTPUT_INHERIT;
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poetteringstatic usec_t arg_default_restart_usec = DEFAULT_RESTART_USEC;
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poetteringstatic usec_t arg_default_timeout_start_usec = DEFAULT_TIMEOUT_USEC;
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poetteringstatic usec_t arg_default_timeout_stop_usec = DEFAULT_TIMEOUT_USEC;
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poetteringstatic usec_t arg_default_start_limit_interval = DEFAULT_START_LIMIT_INTERVAL;
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poetteringstatic unsigned arg_default_start_limit_burst = DEFAULT_START_LIMIT_BURST;
821b2e792159e237a1e5a1ea4bb6ae2e55d64be5Lukas Nykrynstatic usec_t arg_runtime_watchdog = 0;
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poetteringstatic usec_t arg_shutdown_watchdog = 10 * USEC_PER_MINUTE;
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poetteringstatic char **arg_default_environment = NULL;
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poetteringstatic struct rlimit *arg_default_rlimit[_RLIMIT_MAX] = {};
4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidtstatic uint64_t arg_capability_bounding_set_drop = 0;
4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidtstatic nsec_t arg_timer_slack_nsec = NSEC_INFINITY;
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poetteringstatic usec_t arg_default_timer_accuracy_usec = 1 * USEC_PER_MINUTE;
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poetteringstatic Set* arg_syscall_archs = NULL;
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poetteringstatic FILE* arg_serialization = NULL;
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poetteringstatic bool arg_default_cpu_accounting = false;
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poetteringstatic bool arg_default_blockio_accounting = false;
c3834f9b881f2b1a68dc7d797c134f0b66b47b57Lennart Poetteringstatic bool arg_default_memory_accounting = false;
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poetteringstatic bool arg_default_tasks_accounting = false;
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poetteringstatic void pager_open_if_enabled(void) {
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering if (arg_no_pager <= 0)
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering return;
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering pager_open(false);
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering}
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering
cca1dfddd4ce4357113663532696488427cc54e4Lennart Poetteringnoreturn static void freeze_or_reboot(void) {
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering if (arg_crash_reboot) {
cca1dfddd4ce4357113663532696488427cc54e4Lennart Poettering log_notice("Rebooting in 10s...");
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering (void) sleep(10);
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering log_notice("Rebooting now...");
4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt (void) reboot(RB_AUTOBOOT);
4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt log_emergency_errno(errno, "Failed to reboot: %m");
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering }
63c372cb9df3bee01e3bf8cd7f96f336bddda846Lennart Poettering
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering log_emergency("Freezing execution.");
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering freeze();
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering}
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poetteringnoreturn static void crash(int sig) {
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering struct sigaction sa;
4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt pid_t pid;
4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering if (getpid() != 1)
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering /* Pass this on immediately, if this is not PID 1 */
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering (void) raise(sig);
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering else if (!arg_dump_core)
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering log_emergency("Caught <%s>, not dumping core.", signal_to_string(sig));
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering else {
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering sa = (struct sigaction) {
4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt .sa_handler = nop_signal_handler,
4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt .sa_flags = SA_NOCLDSTOP|SA_RESTART,
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering };
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering /* We want to wait for the core process, hence let's enable SIGCHLD */
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering (void) sigaction(SIGCHLD, &sa, NULL);
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering pid = raw_clone(SIGCHLD, NULL);
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering if (pid < 0)
4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt log_emergency_errno(errno, "Caught <%s>, cannot fork for core dump: %m", signal_to_string(sig));
4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt else if (pid == 0) {
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering struct rlimit rl = {
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering .rlim_cur = RLIM_INFINITY,
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering .rlim_max = RLIM_INFINITY,
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering };
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering /* Enable default signal handler for core dump */
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering sa = (struct sigaction) {
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering .sa_handler = SIG_DFL,
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering };
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering (void) sigaction(sig, &sa, NULL);
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering
23bbb0de4e3f85d9704a5c12a5afa2dfa0159e41Michal Schmidt /* Don't limit the core dump size */
23bbb0de4e3f85d9704a5c12a5afa2dfa0159e41Michal Schmidt (void) setrlimit(RLIMIT_CORE, &rl);
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering /* Just to be sure... */
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering (void) chdir("/");
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering /* Raise the signal again */
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering pid = raw_getpid();
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering (void) kill(pid, sig); /* raise() would kill the parent */
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering assert_not_reached("We shouldn't be here...");
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering _exit(EXIT_FAILURE);
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering } else {
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering siginfo_t status;
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering int r;
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering
cca1dfddd4ce4357113663532696488427cc54e4Lennart Poettering /* Order things nicely. */
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering r = wait_for_terminate(pid, &status);
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering if (r < 0)
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering log_emergency_errno(r, "Caught <%s>, waitpid() failed: %m", signal_to_string(sig));
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering else if (status.si_code != CLD_DUMPED)
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering log_emergency("Caught <%s>, core dump failed (child "PID_FMT", code=%s, status=%i/%s).",
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering signal_to_string(sig),
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering pid, sigchld_code_to_string(status.si_code),
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering status.si_status,
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering strna(status.si_code == CLD_EXITED
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering ? exit_status_to_string(status.si_status, EXIT_STATUS_FULL)
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering : signal_to_string(status.si_status)));
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering else
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering log_emergency("Caught <%s>, dumped core as pid "PID_FMT".", signal_to_string(sig), pid);
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering }
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering }
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering
cca1dfddd4ce4357113663532696488427cc54e4Lennart Poettering if (arg_crash_chvt >= 0)
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering (void) chvt(arg_crash_chvt);
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering sa = (struct sigaction) {
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering .sa_handler = SIG_IGN,
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering .sa_flags = SA_NOCLDSTOP|SA_NOCLDWAIT|SA_RESTART,
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering };
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering /* Let the kernel reap children for us */
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering (void) sigaction(SIGCHLD, &sa, NULL);
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering if (arg_crash_shell) {
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering log_notice("Executing crash shell in 10s...");
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering (void) sleep(10);
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering pid = raw_clone(SIGCHLD, NULL);
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering if (pid < 0)
4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt log_emergency_errno(errno, "Failed to fork off crash shell: %m");
4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt else if (pid == 0) {
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering (void) setsid();
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering (void) make_console_stdio();
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering (void) execle("/bin/sh", "/bin/sh", NULL, environ);
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering
c3834f9b881f2b1a68dc7d797c134f0b66b47b57Lennart Poettering log_emergency_errno(errno, "execle() failed: %m");
c3834f9b881f2b1a68dc7d797c134f0b66b47b57Lennart Poettering _exit(EXIT_FAILURE);
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering } else {
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering log_info("Spawned crash shell as PID "PID_FMT".", pid);
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering (void) wait_for_terminate(pid, NULL);
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering }
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering }
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering freeze_or_reboot();
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering}
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poetteringstatic void install_crash_handler(void) {
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering static const struct sigaction sa = {
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering .sa_handler = crash,
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering .sa_flags = SA_NODEFER, /* So that we can raise the signal again from the signal handler */
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering };
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering int r;
1af7211984a8dba3c5ba40fae794c4c55f5e6bd3Lennart Poettering
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering /* We ignore the return value here, since, we don't mind if we
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering * cannot set up a crash handler */
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering r = sigaction_many(&sa, SIGNALS_CRASH_HANDLER, -1);
cca1dfddd4ce4357113663532696488427cc54e4Lennart Poettering if (r < 0)
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering log_debug_errno(r, "I had trouble setting up the crash handler, ignoring: %m");
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering}
4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt
4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidtstatic int console_setup(void) {
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering _cleanup_close_ int tty_fd = -1;
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering int r;
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering tty_fd = open_terminal("/dev/console", O_WRONLY|O_NOCTTY|O_CLOEXEC);
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering if (tty_fd < 0)
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering return log_error_errno(tty_fd, "Failed to open /dev/console: %m");
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering
4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt /* We don't want to force text mode. plymouth may be showing
4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt * pictures already from initrd. */
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering r = reset_terminal_fd(tty_fd, false);
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering if (r < 0)
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering return log_error_errno(r, "Failed to reset /dev/console: %m");
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering return 0;
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering}
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poetteringstatic int parse_crash_chvt(const char *value) {
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering int b;
cca1dfddd4ce4357113663532696488427cc54e4Lennart Poettering
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering if (safe_atoi(value, &arg_crash_chvt) >= 0)
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering return 0;
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering b = parse_boolean(value);
a0b1209c4a59754f428894e0485413542da50014Zbigniew Jędrzejewski-Szmek if (b < 0)
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering return b;
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering if (b > 0)
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering arg_crash_chvt = 0; /* switch to where kmsg goes */
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering else
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering arg_crash_chvt = -1; /* turn off switching */
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering return 0;
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering}
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poetteringstatic int parse_proc_cmdline_item(const char *key, const char *value) {
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering int r;
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering assert(key);
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering if (streq(key, "systemd.unit") && value) {
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering if (!in_initrd())
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering return free_and_strdup(&arg_default_unit, value);
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering
56f64d95763a799ba4475daf44d8e9f72a1bd474Michal Schmidt } else if (streq(key, "rd.systemd.unit") && value) {
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering if (in_initrd())
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering return free_and_strdup(&arg_default_unit, value);
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering } else if (streq(key, "systemd.dump_core") && value) {
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering r = parse_boolean(value);
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering if (r < 0)
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering log_warning("Failed to parse dump core switch %s. Ignoring.", value);
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering else
a0b1209c4a59754f428894e0485413542da50014Zbigniew Jędrzejewski-Szmek arg_dump_core = r;
a0b1209c4a59754f428894e0485413542da50014Zbigniew Jędrzejewski-Szmek
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering } else if (streq(key, "systemd.crash_chvt") && value) {
a0b1209c4a59754f428894e0485413542da50014Zbigniew Jędrzejewski-Szmek
a0b1209c4a59754f428894e0485413542da50014Zbigniew Jędrzejewski-Szmek if (parse_crash_chvt(value) < 0)
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering log_warning("Failed to parse crash chvt switch %s. Ignoring.", value);
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering } else if (streq(key, "systemd.crash_shell") && value) {
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering r = parse_boolean(value);
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering if (r < 0)
cca1dfddd4ce4357113663532696488427cc54e4Lennart Poettering log_warning("Failed to parse crash shell switch %s. Ignoring.", value);
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering else
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering arg_crash_shell = r;
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering } else if (streq(key, "systemd.crash_reboot") && value) {
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering r = parse_boolean(value);
1ca208fb4f93e5869704af1812cbff7130a2fc03Zbigniew Jędrzejewski-Szmek if (r < 0)
1ca208fb4f93e5869704af1812cbff7130a2fc03Zbigniew Jędrzejewski-Szmek log_warning("Failed to parse crash reboot switch %s. Ignoring.", value);
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering else
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering arg_crash_reboot = r;
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering } else if (streq(key, "systemd.confirm_spawn") && value) {
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering
d2a623823f8d83c97c35fcd28f90e8cd59066f8aZbigniew Jędrzejewski-Szmek r = parse_boolean(value);
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering if (r < 0)
cca1dfddd4ce4357113663532696488427cc54e4Lennart Poettering log_warning("Failed to parse confirm spawn switch %s. Ignoring.", value);
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering else
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering arg_confirm_spawn = r;
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering } else if (streq(key, "systemd.show_status") && value) {
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering r = parse_show_status(value, &arg_show_status);
b47d419c25ecc735615a1088060c1ec8bef1e41fZbigniew Jędrzejewski-Szmek if (r < 0)
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering log_warning("Failed to parse show status switch %s. Ignoring.", value);
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering
1ca208fb4f93e5869704af1812cbff7130a2fc03Zbigniew Jędrzejewski-Szmek } else if (streq(key, "systemd.default_standard_output") && value) {
1ca208fb4f93e5869704af1812cbff7130a2fc03Zbigniew Jędrzejewski-Szmek
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering r = exec_output_from_string(value);
d2a623823f8d83c97c35fcd28f90e8cd59066f8aZbigniew Jędrzejewski-Szmek if (r < 0)
d2a623823f8d83c97c35fcd28f90e8cd59066f8aZbigniew Jędrzejewski-Szmek log_warning("Failed to parse default standard output switch %s. Ignoring.", value);
d2a623823f8d83c97c35fcd28f90e8cd59066f8aZbigniew Jędrzejewski-Szmek else
d2a623823f8d83c97c35fcd28f90e8cd59066f8aZbigniew Jędrzejewski-Szmek arg_default_std_output = r;
d2a623823f8d83c97c35fcd28f90e8cd59066f8aZbigniew Jędrzejewski-Szmek
d2a623823f8d83c97c35fcd28f90e8cd59066f8aZbigniew Jędrzejewski-Szmek } else if (streq(key, "systemd.default_standard_error") && value) {
d2a623823f8d83c97c35fcd28f90e8cd59066f8aZbigniew Jędrzejewski-Szmek
d2a623823f8d83c97c35fcd28f90e8cd59066f8aZbigniew Jędrzejewski-Szmek r = exec_output_from_string(value);
d2a623823f8d83c97c35fcd28f90e8cd59066f8aZbigniew Jędrzejewski-Szmek if (r < 0)
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering log_warning("Failed to parse default standard error switch %s. Ignoring.", value);
fa041593fe04b12ffd7e81d8b3598a7a6f313fb3Lennart Poettering else
d2a623823f8d83c97c35fcd28f90e8cd59066f8aZbigniew Jędrzejewski-Szmek arg_default_std_error = r;
9c4495ca561624c2f0085507dd1288ed5f1247c5Tomasz Torcz
fa041593fe04b12ffd7e81d8b3598a7a6f313fb3Lennart Poettering } else if (streq(key, "systemd.setenv") && value) {
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering if (env_assignment_is_valid(value)) {
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering char **env;
fa041593fe04b12ffd7e81d8b3598a7a6f313fb3Lennart Poettering
d2a623823f8d83c97c35fcd28f90e8cd59066f8aZbigniew Jędrzejewski-Szmek env = strv_env_set(arg_default_environment, value);
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering if (env)
fa041593fe04b12ffd7e81d8b3598a7a6f313fb3Lennart Poettering arg_default_environment = env;
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering else
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering log_warning_errno(ENOMEM, "Setting environment variable '%s' failed, ignoring: %m", value);
fa041593fe04b12ffd7e81d8b3598a7a6f313fb3Lennart Poettering } else
d2a623823f8d83c97c35fcd28f90e8cd59066f8aZbigniew Jędrzejewski-Szmek log_warning("Environment variable name '%s' is not valid. Ignoring.", value);
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering
fa041593fe04b12ffd7e81d8b3598a7a6f313fb3Lennart Poettering } else if (streq(key, "quiet") && !value) {
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering if (arg_show_status == _SHOW_STATUS_UNSET)
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering arg_show_status = SHOW_STATUS_AUTO;
fa041593fe04b12ffd7e81d8b3598a7a6f313fb3Lennart Poettering
d2a623823f8d83c97c35fcd28f90e8cd59066f8aZbigniew Jędrzejewski-Szmek } else if (streq(key, "debug") && !value) {
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering
fa041593fe04b12ffd7e81d8b3598a7a6f313fb3Lennart Poettering /* Note that log_parse_environment() handles 'debug'
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering * too, and sets the log level to LOG_DEBUG. */
d2a623823f8d83c97c35fcd28f90e8cd59066f8aZbigniew Jędrzejewski-Szmek
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering if (detect_container() > 0)
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering log_set_target(LOG_TARGET_CONSOLE);
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering } else if (!in_initrd() && !value) {
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering const char *target;
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering /* SysV compatibility */
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering target = runlevel_to_target(key);
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering if (target)
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering return free_and_strdup(&arg_default_unit, target);
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering }
d2a623823f8d83c97c35fcd28f90e8cd59066f8aZbigniew Jędrzejewski-Szmek
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering return 0;
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering}
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering#define DEFINE_SETTER(name, func, descr) \
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering static int name(const char *unit, \
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering const char *filename, \
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering unsigned line, \
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering const char *section, \
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering unsigned section_line, \
d2a623823f8d83c97c35fcd28f90e8cd59066f8aZbigniew Jędrzejewski-Szmek const char *lvalue, \
d2a623823f8d83c97c35fcd28f90e8cd59066f8aZbigniew Jędrzejewski-Szmek int ltype, \
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering const char *rvalue, \
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering void *data, \
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering void *userdata) { \
d2a623823f8d83c97c35fcd28f90e8cd59066f8aZbigniew Jędrzejewski-Szmek \
d2a623823f8d83c97c35fcd28f90e8cd59066f8aZbigniew Jędrzejewski-Szmek int r; \
d2a623823f8d83c97c35fcd28f90e8cd59066f8aZbigniew Jędrzejewski-Szmek \
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering assert(filename); \
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering assert(lvalue); \
fa041593fe04b12ffd7e81d8b3598a7a6f313fb3Lennart Poettering assert(rvalue); \
d2a623823f8d83c97c35fcd28f90e8cd59066f8aZbigniew Jędrzejewski-Szmek \
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering r = func(rvalue); \
fa041593fe04b12ffd7e81d8b3598a7a6f313fb3Lennart Poettering if (r < 0) \
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering log_syntax(unit, LOG_ERR, filename, line, r, \
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering "Invalid " descr "'%s': %m", \
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering rvalue); \
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering \
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering return 0; \
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering }
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering
d2a623823f8d83c97c35fcd28f90e8cd59066f8aZbigniew Jędrzejewski-SzmekDEFINE_SETTER(config_parse_level2, log_set_max_level_from_string, "log level")
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart PoetteringDEFINE_SETTER(config_parse_target, log_set_target_from_string, "target")
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart PoetteringDEFINE_SETTER(config_parse_color, log_show_color_from_string, "color" )
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart PoetteringDEFINE_SETTER(config_parse_location, log_show_location_from_string, "location")
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poetteringstatic int config_parse_cpu_affinity2(
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering const char *unit,
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering const char *filename,
1ca208fb4f93e5869704af1812cbff7130a2fc03Zbigniew Jędrzejewski-Szmek unsigned line,
1ca208fb4f93e5869704af1812cbff7130a2fc03Zbigniew Jędrzejewski-Szmek const char *section,
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering unsigned section_line,
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering const char *lvalue,
1ca208fb4f93e5869704af1812cbff7130a2fc03Zbigniew Jędrzejewski-Szmek int ltype,
1ca208fb4f93e5869704af1812cbff7130a2fc03Zbigniew Jędrzejewski-Szmek const char *rvalue,
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering void *data,
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering void *userdata) {
23bbb0de4e3f85d9704a5c12a5afa2dfa0159e41Michal Schmidt
d2a623823f8d83c97c35fcd28f90e8cd59066f8aZbigniew Jędrzejewski-Szmek _cleanup_cpu_free_ cpu_set_t *c = NULL;
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering int ncpus;
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering ncpus = parse_cpu_set_and_warn(rvalue, &c, unit, filename, line, lvalue);
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering if (ncpus < 0)
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering return ncpus;
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering if (sched_setaffinity(0, CPU_ALLOC_SIZE(ncpus), c) < 0)
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering log_warning("Failed to set CPU affinity: %m");
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering
cca1dfddd4ce4357113663532696488427cc54e4Lennart Poettering return 0;
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering}
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering
1ca208fb4f93e5869704af1812cbff7130a2fc03Zbigniew Jędrzejewski-Szmekstatic int config_parse_show_status(
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering const char* unit,
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering const char *filename,
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering unsigned line,
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering const char *section,
1ca208fb4f93e5869704af1812cbff7130a2fc03Zbigniew Jędrzejewski-Szmek unsigned section_line,
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering const char *lvalue,
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering int ltype,
1ca208fb4f93e5869704af1812cbff7130a2fc03Zbigniew Jędrzejewski-Szmek const char *rvalue,
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering void *data,
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering void *userdata) {
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering int k;
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering ShowStatus *b = data;
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering assert(filename);
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering assert(lvalue);
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering assert(rvalue);
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering assert(data);
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering k = parse_show_status(rvalue, b);
cca1dfddd4ce4357113663532696488427cc54e4Lennart Poettering if (k < 0) {
cca1dfddd4ce4357113663532696488427cc54e4Lennart Poettering log_syntax(unit, LOG_ERR, filename, line, k, "Failed to parse show status setting, ignoring: %s", rvalue);
cca1dfddd4ce4357113663532696488427cc54e4Lennart Poettering return 0;
cca1dfddd4ce4357113663532696488427cc54e4Lennart Poettering }
cca1dfddd4ce4357113663532696488427cc54e4Lennart Poettering
cca1dfddd4ce4357113663532696488427cc54e4Lennart Poettering return 0;
cca1dfddd4ce4357113663532696488427cc54e4Lennart Poettering}
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poetteringstatic int config_parse_crash_chvt(
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering const char* unit,
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering const char *filename,
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering unsigned line,
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering const char *section,
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering unsigned section_line,
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering const char *lvalue,
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering int ltype,
1ca208fb4f93e5869704af1812cbff7130a2fc03Zbigniew Jędrzejewski-Szmek const char *rvalue,
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering void *data,
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering void *userdata) {
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering
cca1dfddd4ce4357113663532696488427cc54e4Lennart Poettering int r;
d2a623823f8d83c97c35fcd28f90e8cd59066f8aZbigniew Jędrzejewski-Szmek
cca1dfddd4ce4357113663532696488427cc54e4Lennart Poettering assert(filename);
cca1dfddd4ce4357113663532696488427cc54e4Lennart Poettering assert(lvalue);
cca1dfddd4ce4357113663532696488427cc54e4Lennart Poettering assert(rvalue);
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering r = parse_crash_chvt(rvalue);
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering if (r < 0) {
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse CrashChangeVT= setting, ignoring: %s", rvalue);
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering return 0;
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering }
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering return 0;
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering}
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poetteringstatic int config_parse_join_controllers(const char *unit,
cca1dfddd4ce4357113663532696488427cc54e4Lennart Poettering const char *filename,
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering unsigned line,
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering const char *section,
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering unsigned section_line,
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering const char *lvalue,
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering int ltype,
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering const char *rvalue,
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering void *data,
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering void *userdata) {
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering const char *whole_rvalue = rvalue;
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering unsigned n = 0;
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering assert(filename);
cca1dfddd4ce4357113663532696488427cc54e4Lennart Poettering assert(lvalue);
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering assert(rvalue);
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering
d736e4f3e76daca4ab1b1fc444737e5ee20a27cdMathieu Chevrier arg_join_controllers = strv_free_free(arg_join_controllers);
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering for (;;) {
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering _cleanup_free_ char *word = NULL;
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering char **l;
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering int r;
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering
cca1dfddd4ce4357113663532696488427cc54e4Lennart Poettering r = extract_first_word(&rvalue, &word, WHITESPACE, EXTRACT_QUOTES);
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering if (r < 0) {
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering log_syntax(unit, LOG_ERR, filename, line, r, "Invalid value for %s: %s", lvalue, whole_rvalue);
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering return r;
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering }
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering if (r == 0)
cca1dfddd4ce4357113663532696488427cc54e4Lennart Poettering break;
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering l = strv_split(word, ",");
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering if (!l)
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering return log_oom();
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering strv_uniq(l);
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering if (strv_length(l) <= 1) {
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering strv_free(l);
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering continue;
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering }
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering if (!arg_join_controllers) {
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering arg_join_controllers = new(char**, 2);
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering if (!arg_join_controllers) {
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering strv_free(l);
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering return log_oom();
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering }
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering arg_join_controllers[0] = l;
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering arg_join_controllers[1] = NULL;
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering n = 1;
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering } else {
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering char ***a;
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering char ***t;
c51cf05646a11c65daf65c1123c77efb068f4f7bZbigniew Jędrzejewski-Szmek
f9ac15442e4132f00eca5495d53c17062aae13e0Lennart Poettering t = new0(char**, n+2);
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering if (!t) {
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering strv_free(l);
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering return log_oom();
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering }
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering n = 0;
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering for (a = arg_join_controllers; *a; a++) {
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering if (strv_overlap(*a, l)) {
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering if (strv_extend_strv(&l, *a, false) < 0) {
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering strv_free(l);
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering strv_free_free(t);
d2a623823f8d83c97c35fcd28f90e8cd59066f8aZbigniew Jędrzejewski-Szmek return log_oom();
8086ffacdb1bfec5ec115d24626538bda6cc372eZbigniew Jędrzejewski-Szmek }
8086ffacdb1bfec5ec115d24626538bda6cc372eZbigniew Jędrzejewski-Szmek
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering } else {
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering char **c;
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering c = strv_copy(*a);
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering if (!c) {
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering strv_free(l);
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering strv_free_free(t);
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering return log_oom();
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering }
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering t[n++] = c;
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering }
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering }
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering t[n++] = strv_uniq(l);
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering strv_free_free(arg_join_controllers);
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering arg_join_controllers = t;
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering }
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering }
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering if (!isempty(rvalue))
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering log_syntax(unit, LOG_ERR, filename, line, 0, "Trailing garbage, ignoring.");
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering return 0;
9a5cb1371b6d8b0a04bd08665bcf9b06cb40c64cZbigniew Jędrzejewski-Szmek}
9a5cb1371b6d8b0a04bd08665bcf9b06cb40c64cZbigniew Jędrzejewski-Szmek
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poetteringstatic int parse_config_file(void) {
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering const ConfigTableItem items[] = {
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering { "Manager", "LogLevel", config_parse_level2, 0, NULL },
23bbb0de4e3f85d9704a5c12a5afa2dfa0159e41Michal Schmidt { "Manager", "LogTarget", config_parse_target, 0, NULL },
23bbb0de4e3f85d9704a5c12a5afa2dfa0159e41Michal Schmidt { "Manager", "LogColor", config_parse_color, 0, NULL },
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering { "Manager", "LogLocation", config_parse_location, 0, NULL },
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering { "Manager", "DumpCore", config_parse_bool, 0, &arg_dump_core },
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering { "Manager", "CrashChVT", /* legacy */ config_parse_crash_chvt, 0, NULL },
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering { "Manager", "CrashChangeVT", config_parse_crash_chvt, 0, NULL },
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering { "Manager", "CrashShell", config_parse_bool, 0, &arg_crash_shell },
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering { "Manager", "CrashReboot", config_parse_bool, 0, &arg_crash_reboot },
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering { "Manager", "ShowStatus", config_parse_show_status, 0, &arg_show_status },
98b2f766b24c84fc49a4df954717b1f96bbce00dLennart Poettering { "Manager", "CPUAffinity", config_parse_cpu_affinity2, 0, NULL },
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering { "Manager", "JoinControllers", config_parse_join_controllers, 0, &arg_join_controllers },
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering { "Manager", "RuntimeWatchdogSec", config_parse_sec, 0, &arg_runtime_watchdog },
cca1dfddd4ce4357113663532696488427cc54e4Lennart Poettering { "Manager", "ShutdownWatchdogSec", config_parse_sec, 0, &arg_shutdown_watchdog },
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering { "Manager", "CapabilityBoundingSet", config_parse_bounding_set, 0, &arg_capability_bounding_set_drop },
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering#ifdef HAVE_SECCOMP
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering { "Manager", "SystemCallArchitectures", config_parse_syscall_archs, 0, &arg_syscall_archs },
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering#endif
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering { "Manager", "TimerSlackNSec", config_parse_nsec, 0, &arg_timer_slack_nsec },
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering { "Manager", "DefaultTimerAccuracySec", config_parse_sec, 0, &arg_default_timer_accuracy_usec },
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering { "Manager", "DefaultStandardOutput", config_parse_output, 0, &arg_default_std_output },
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering { "Manager", "DefaultStandardError", config_parse_output, 0, &arg_default_std_error },
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering { "Manager", "DefaultTimeoutStartSec", config_parse_sec, 0, &arg_default_timeout_start_usec },
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering { "Manager", "DefaultTimeoutStopSec", config_parse_sec, 0, &arg_default_timeout_stop_usec },
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering { "Manager", "DefaultRestartSec", config_parse_sec, 0, &arg_default_restart_usec },
3db604b907323b8df0fc810216f6112056d26a02Lennart Poettering { "Manager", "DefaultStartLimitInterval", config_parse_sec, 0, &arg_default_start_limit_interval },
23bbb0de4e3f85d9704a5c12a5afa2dfa0159e41Michal Schmidt { "Manager", "DefaultStartLimitBurst", config_parse_unsigned, 0, &arg_default_start_limit_burst },
23bbb0de4e3f85d9704a5c12a5afa2dfa0159e41Michal Schmidt { "Manager", "DefaultEnvironment", config_parse_environ, 0, &arg_default_environment },
23bbb0de4e3f85d9704a5c12a5afa2dfa0159e41Michal Schmidt { "Manager", "DefaultLimitCPU", config_parse_sec_limit, 0, &arg_default_rlimit[RLIMIT_CPU] },
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering { "Manager", "DefaultLimitFSIZE", config_parse_bytes_limit, 0, &arg_default_rlimit[RLIMIT_FSIZE] },
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering { "Manager", "DefaultLimitDATA", config_parse_bytes_limit, 0, &arg_default_rlimit[RLIMIT_DATA] },
3db604b907323b8df0fc810216f6112056d26a02Lennart Poettering { "Manager", "DefaultLimitSTACK", config_parse_bytes_limit, 0, &arg_default_rlimit[RLIMIT_STACK] },
3db604b907323b8df0fc810216f6112056d26a02Lennart Poettering { "Manager", "DefaultLimitCORE", config_parse_bytes_limit, 0, &arg_default_rlimit[RLIMIT_CORE] },
61331eab0a53cd9b8446eab6d1ebf1a046d8efc1Lennart Poettering { "Manager", "DefaultLimitRSS", config_parse_bytes_limit, 0, &arg_default_rlimit[RLIMIT_RSS] },
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering { "Manager", "DefaultLimitNOFILE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NOFILE] },
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering { "Manager", "DefaultLimitAS", config_parse_bytes_limit, 0, &arg_default_rlimit[RLIMIT_AS] },
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering { "Manager", "DefaultLimitNPROC", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NPROC] },
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering { "Manager", "DefaultLimitMEMLOCK", config_parse_bytes_limit, 0, &arg_default_rlimit[RLIMIT_MEMLOCK] },
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering { "Manager", "DefaultLimitLOCKS", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_LOCKS] },
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering { "Manager", "DefaultLimitSIGPENDING", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_SIGPENDING] },
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering { "Manager", "DefaultLimitMSGQUEUE", config_parse_bytes_limit, 0, &arg_default_rlimit[RLIMIT_MSGQUEUE] },
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering { "Manager", "DefaultLimitNICE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NICE] },
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering { "Manager", "DefaultLimitRTPRIO", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_RTPRIO] },
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering { "Manager", "DefaultLimitRTTIME", config_parse_usec_limit, 0, &arg_default_rlimit[RLIMIT_RTTIME] },
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering { "Manager", "DefaultCPUAccounting", config_parse_bool, 0, &arg_default_cpu_accounting },
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering { "Manager", "DefaultBlockIOAccounting", config_parse_bool, 0, &arg_default_blockio_accounting },
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering { "Manager", "DefaultMemoryAccounting", config_parse_bool, 0, &arg_default_memory_accounting },
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering { "Manager", "DefaultTasksAccounting", config_parse_bool, 0, &arg_default_tasks_accounting },
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering {}
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering };
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering const char *fn, *conf_dirs_nulstr;
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering fn = arg_running_as == MANAGER_SYSTEM ?
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering PKGSYSCONFDIR "/system.conf" :
e48fdd84432bbf9c2ecc339183258c7c33116032Lennart Poettering PKGSYSCONFDIR "/user.conf";
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering
3db604b907323b8df0fc810216f6112056d26a02Lennart Poettering conf_dirs_nulstr = arg_running_as == MANAGER_SYSTEM ?
b5884878a2874447b2a9f07f324a7cd909d96d48Lennart Poettering CONF_PATHS_NULSTR("systemd/system.conf.d") :
b5884878a2874447b2a9f07f324a7cd909d96d48Lennart Poettering CONF_PATHS_NULSTR("systemd/user.conf.d");
da927ba997d68401563b927f92e6e40e021a8e5cMichal Schmidt
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering config_parse_many(fn, conf_dirs_nulstr, "Manager\0",
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering config_item_table_lookup, items, false, NULL);
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering return 0;
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering}
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poetteringstatic void manager_set_defaults(Manager *m) {
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering assert(m);
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering m->default_timer_accuracy_usec = arg_default_timer_accuracy_usec;
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering m->default_std_output = arg_default_std_output;
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering m->default_std_error = arg_default_std_error;
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering m->default_timeout_start_usec = arg_default_timeout_start_usec;
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering m->default_timeout_stop_usec = arg_default_timeout_stop_usec;
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering m->default_restart_usec = arg_default_restart_usec;
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering m->default_start_limit_interval = arg_default_start_limit_interval;
73b80ec2d999c45ce13f3e034704249d80829f7eLennart Poettering m->default_start_limit_burst = arg_default_start_limit_burst;
1a14a53cfded6e78c6e8dfb73fdff0039971d642Lennart Poettering m->default_cpu_accounting = arg_default_cpu_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;
manager_set_default_rlimits(m, arg_default_rlimit);
manager_environment_add(m, NULL, arg_default_environment);
}
static int parse_argv(int argc, char *argv[]) {
enum {
ARG_LOG_LEVEL = 0x100,
ARG_LOG_TARGET,
ARG_LOG_COLOR,
ARG_LOG_LOCATION,
ARG_UNIT,
ARG_SYSTEM,
ARG_USER,
ARG_TEST,
ARG_NO_PAGER,
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
};
static const struct option options[] = {
{ "log-level", required_argument, NULL, ARG_LOG_LEVEL },
{ "log-target", required_argument, NULL, ARG_LOG_TARGET },
{ "log-color", optional_argument, NULL, ARG_LOG_COLOR },
{ "log-location", optional_argument, NULL, ARG_LOG_LOCATION },
{ "unit", required_argument, NULL, ARG_UNIT },
{ "system", no_argument, NULL, ARG_SYSTEM },
{ "user", no_argument, NULL, ARG_USER },
{ "test", no_argument, NULL, ARG_TEST },
{ "no-pager", no_argument, NULL, ARG_NO_PAGER },
{ "help", no_argument, NULL, 'h' },
{ "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, },
{}
};
int c, r;
assert(argc >= 1);
assert(argv);
if (getpid() == 1)
opterr = 0;
while ((c = getopt_long(argc, argv, "hDbsz:", options, NULL)) >= 0)
switch (c) {
case ARG_LOG_LEVEL:
r = log_set_max_level_from_string(optarg);
if (r < 0) {
log_error("Failed to parse log level %s.", optarg);
return r;
}
break;
case ARG_LOG_TARGET:
r = log_set_target_from_string(optarg);
if (r < 0) {
log_error("Failed to parse log target %s.", optarg);
return r;
}
break;
case ARG_LOG_COLOR:
if (optarg) {
r = log_show_color_from_string(optarg);
if (r < 0) {
log_error("Failed to parse log color setting %s.", optarg);
return r;
}
} else
log_show_color(true);
break;
case ARG_LOG_LOCATION:
if (optarg) {
r = log_show_location_from_string(optarg);
if (r < 0) {
log_error("Failed to parse log location setting %s.", optarg);
return r;
}
} else
log_show_location(true);
break;
case ARG_DEFAULT_STD_OUTPUT:
r = exec_output_from_string(optarg);
if (r < 0) {
log_error("Failed to parse default standard output setting %s.", optarg);
return r;
} else
arg_default_std_output = r;
break;
case ARG_DEFAULT_STD_ERROR:
r = exec_output_from_string(optarg);
if (r < 0) {
log_error("Failed to parse default standard error output setting %s.", optarg);
return r;
} else
arg_default_std_error = r;
break;
case ARG_UNIT:
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;
break;
case ARG_USER:
arg_running_as = MANAGER_USER;
break;
case ARG_TEST:
arg_action = ACTION_TEST;
if (arg_no_pager < 0)
arg_no_pager = true;
break;
case ARG_NO_PAGER:
arg_no_pager = true;
break;
case ARG_VERSION:
arg_action = ACTION_VERSION;
break;
case ARG_DUMP_CONFIGURATION_ITEMS:
arg_action = ACTION_DUMP_CONFIGURATION_ITEMS;
break;
case ARG_DUMP_CORE:
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;
}
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:
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;
}
break;
case ARG_CONFIRM_SPAWN:
r = optarg ? parse_boolean(optarg) : 1;
if (r < 0) {
log_error("Failed to parse confirm spawn boolean %s.", optarg);
return r;
}
arg_confirm_spawn = r;
break;
case ARG_SHOW_STATUS:
if (optarg) {
r = parse_show_status(optarg, &arg_show_status);
if (r < 0) {
log_error("Failed to parse show status boolean %s.", optarg);
return r;
}
} else
arg_show_status = SHOW_STATUS_YES;
break;
case ARG_DESERIALIZE: {
int fd;
FILE *f;
r = safe_atoi(optarg, &fd);
if (r < 0 || fd < 0) {
log_error("Failed to parse deserialize option %s.", optarg);
return -EINVAL;
}
(void) fd_cloexec(fd, true);
f = fdopen(fd, "r");
if (!f)
return log_error_errno(errno, "Failed to open serialization fd: %m");
safe_fclose(arg_serialization);
arg_serialization = f;
break;
}
case ARG_SWITCHED_ROOT:
arg_switched_root = true;
break;
case 'h':
arg_action = ACTION_HELP;
if (arg_no_pager < 0)
arg_no_pager = true;
break;
case 'D':
log_set_max_level(LOG_DEBUG);
break;
case 'b':
case 's':
case 'z':
/* Just to eat away the sysvinit kernel
* cmdline args without getopt() error
* messages that we'll parse in
* parse_proc_cmdline_word() or ignore. */
case '?':
if (getpid() != 1)
return -EINVAL;
else
return 0;
default:
assert_not_reached("Unhandled option code.");
}
if (optind < argc && getpid() != 1) {
/* Hmm, when we aren't run as init system
* let's complain about excess arguments */
log_error("Excess arguments.");
return -EINVAL;
}
return 0;
}
static int help(void) {
printf("%s [OPTIONS...]\n\n"
"Starts up and maintains the system or user services.\n\n"
" -h --help Show this help\n"
" --test Determine startup sequence, dump it and exit\n"
" --no-pager Do not pipe output into a pager\n"
" --dump-configuration-items Dump understood unit configuration items\n"
" --unit=UNIT Set default unit\n"
" --system Run a system instance, even if PID != 1\n"
" --user Run a user instance\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[=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);
return 0;
}
static int prepare_reexecute(Manager *m, FILE **_f, FDSet **_fds, bool switching_root) {
_cleanup_fdset_free_ FDSet *fds = NULL;
_cleanup_fclose_ FILE *f = NULL;
int r;
assert(m);
assert(_f);
assert(_fds);
r = manager_open_serialization(m, &f);
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 ++;
bus_manager_send_reloading(m, true);
fds = fdset_new();
if (!fds)
return log_oom();
r = manager_serialize(m, f, fds, switching_root);
if (r < 0)
return log_error_errno(r, "Failed to serialize state: %m");
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)
return log_error_errno(r, "Failed to disable O_CLOEXEC for serialization: %m");
r = fdset_cloexec(fds, false);
if (r < 0)
return log_error_errno(r, "Failed to disable O_CLOEXEC for serialization fds: %m");
*_f = f;
*_fds = fds;
f = NULL;
fds = NULL;
return 0;
}
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)
return log_error_errno(errno, "Reading RLIMIT_NOFILE failed: %m");
/* 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)
return log_error_errno(r, "Setting RLIMIT_NOFILE failed: %m");
return 0;
}
static void test_usr(void) {
/* Check that /usr is not a separate fs */
if (dir_is_empty("/usr") <= 0)
return;
log_warning("/usr appears to be on its own filesystem and is not already mounted. This is not a supported setup. "
"Some things will probably break (sometimes even silently) in mysterious ways. "
"Consult http://freedesktop.org/wiki/Software/systemd/separate-usr-is-broken for more information.");
}
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" doesn'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])
goto oom;
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) {
#ifdef HAVE_SECCOMP
scmp_filter_ctx *seccomp;
Iterator i;
void *id;
int r;
seccomp = seccomp_init(SCMP_ACT_ALLOW);
if (!seccomp)
return log_oom();
SET_FOREACH(id, arg_syscall_archs, i) {
r = seccomp_arch_add(seccomp, PTR_TO_UINT32(id) - 1);
if (r == -EEXIST)
continue;
if (r < 0) {
log_error_errno(r, "Failed to add architecture to seccomp: %m");
goto finish;
}
}
r = seccomp_attr_set(seccomp, SCMP_FLTATR_CTL_NNP, 0);
if (r < 0) {
log_error_errno(r, "Failed to unset NO_NEW_PRIVS: %m");
goto finish;
}
r = seccomp_load(seccomp);
if (r < 0)
log_error_errno(r, "Failed to add install architecture seccomp: %m");
finish:
seccomp_release(seccomp);
return r;
#else
return 0;
#endif
}
static int status_welcome(void) {
_cleanup_free_ char *pretty_name = NULL, *ansi_color = NULL;
int r;
r = parse_env_file("/etc/os-release", NEWLINE,
"PRETTY_NAME", &pretty_name,
"ANSI_COLOR", &ansi_color,
NULL);
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);
}
static int write_container_id(void) {
const char *c;
int r;
c = getenv("container");
if (isempty(c))
return 0;
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;
}
int main(int argc, char *argv[]) {
Manager *m = NULL;
int r, retval = EXIT_FAILURE;
usec_t before_startup, after_startup;
char timespan[FORMAT_TIMESPAN_MAX];
FDSet *fds = NULL;
bool reexecute = false;
const char *shutdown_verb = NULL;
dual_timestamp initrd_timestamp = DUAL_TIMESTAMP_NULL;
dual_timestamp userspace_timestamp = DUAL_TIMESTAMP_NULL;
dual_timestamp kernel_timestamp = DUAL_TIMESTAMP_NULL;
dual_timestamp security_start_timestamp = DUAL_TIMESTAMP_NULL;
dual_timestamp security_finish_timestamp = DUAL_TIMESTAMP_NULL;
static char systemd[] = "systemd";
bool skip_setup = false;
unsigned j;
bool loaded_policy = false;
bool arm_reboot_watchdog = false;
bool queue_default_job = false;
bool empty_etc = false;
char *switch_root_dir = NULL, *switch_root_init = NULL;
struct rlimit saved_rlimit_nofile = RLIMIT_MAKE_CONST(0);
const char *error_message = NULL;
#ifdef HAVE_SYSV_COMPAT
if (getpid() != 1 && strstr(program_invocation_short_name, "init")) {
/* 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;
}
#endif
dual_timestamp_from_monotonic(&kernel_timestamp, 0);
dual_timestamp_get(&userspace_timestamp);
/* 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. */
if (strv_find(argv+1, "--deserialize"))
skip_setup = true;
/* If we have switched root, do all the special setup
* things */
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
called 'systemd'. That is confusing, hence let's call us
systemd right-away. */
program_invocation_short_name = systemd;
prctl(PR_SET_NAME, systemd);
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() <= 0) {
/* Running outside of a container as PID 1 */
arg_running_as = MANAGER_SYSTEM;
make_null_stdio();
log_set_target(LOG_TARGET_KMSG);
log_open();
if (in_initrd())
initrd_timestamp = userspace_timestamp;
if (!skip_setup) {
mount_setup_early();
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;
}
dual_timestamp_get(&security_finish_timestamp);
}
if (mac_selinux_init(NULL) < 0) {
error_message = "Failed to initialize SELinux policy";
goto finish;
}
if (!skip_setup) {
if (clock_is_localtime() > 0) {
int min;
/*
* The very first call of settimeofday() also does a time warp in the kernel.
*
* In the rtc-in-local time mode, we set the kernel's timezone, and rely on
* external tools to take care of maintaining the RTC and do all adjustments.
* This matches the behavior of Windows, which leaves the RTC alone if the
* registry tells that the RTC runs in UTC.
*/
r = clock_set_timezone(&min);
if (r < 0)
log_error_errno(r, "Failed to apply local time delta, ignoring: %m");
else
log_info("RTC configured in localtime, applying delta of %i minutes to system time.", min);
} else if (!in_initrd()) {
/*
* 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
* 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.
*
* Do no set the kernel's timezone. The concept of local time cannot
* be supported reliably, the time will jump or be incorrect at every daylight
* saving time change. All kernel local time concepts will be treated
* as UTC that way.
*/
clock_reset_timewarp();
}
}
/* 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 = MANAGER_SYSTEM;
log_set_target(LOG_TARGET_CONSOLE);
log_close_console(); /* force reopen of /dev/console */
log_open();
/* For the later on, see above... */
log_set_target(LOG_TARGET_JOURNAL);
/* clear the kernel timestamp,
* because we are in a container */
kernel_timestamp.monotonic = 0ULL;
kernel_timestamp.realtime = 0ULL;
} else {
/* Running as user instance */
arg_running_as = MANAGER_USER;
log_set_target(LOG_TARGET_AUTO);
log_open();
/* clear the kernel timestamp,
* because we are not PID 1 */
kernel_timestamp = DUAL_TIMESTAMP_NULL;
}
/* Initialize default unit */
r = free_and_strdup(&arg_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;
}
r = initialize_join_controllers();
if (r < 0) {
error_message = "Failed to initialize cgroup controllers";
goto finish;
}
/* Mount /proc, /sys and friends, so that /proc/cmdline and
* /proc/$PID/fd is available. */
if (getpid() == 1) {
/* Load the kernel modules early, so that we kdbus.ko is loaded before kdbusfs shall be mounted */
if (!skip_setup)
kmod_setup();
r = mount_setup(loaded_policy);
if (r < 0) {
error_message = "Failed to mount API filesystems";
goto finish;
}
}
/* Reset all signal handlers. */
(void) reset_all_signal_handlers();
(void) ignore_signals(SIGNALS_IGNORE, -1);
if (parse_config_file() < 0) {
error_message = "Failed to parse config file";
goto finish;
}
if (arg_running_as == MANAGER_SYSTEM) {
r = parse_proc_cmdline(parse_proc_cmdline_item);
if (r < 0)
log_warning_errno(r, "Failed to parse kernel command line, ignoring: %m");
}
/* Note that this also parses bits from the kernel command
* line, including "debug". */
log_parse_environment();
if (parse_argv(argc, argv) < 0) {
error_message = "Failed to parse commandline arguments";
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 &&
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 &&
arg_action == ACTION_RUN &&
running_in_chroot() > 0) {
log_error("Cannot be run in a chroot() environment.");
goto finish;
}
if (arg_action == ACTION_TEST)
skip_setup = true;
pager_open_if_enabled();
if (arg_action == ACTION_HELP) {
retval = help();
goto finish;
} else if (arg_action == ACTION_VERSION) {
retval = version();
goto finish;
} else if (arg_action == ACTION_DUMP_CONFIGURATION_ITEMS) {
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 &&
!getenv("XDG_RUNTIME_DIR")) {
log_error("Trying to run as user instance, but $XDG_RUNTIME_DIR is not set.");
goto finish;
}
assert_se(arg_action == ACTION_RUN || arg_action == ACTION_TEST);
/* Close logging fds, in order not to confuse fdset below */
log_close();
/* Remember open file descriptors for later deserialization */
r = fdset_new_fill(&fds);
if (r < 0) {
log_emergency_errno(r, "Failed to allocate fd set: %m");
error_message = "Failed to allocate fd set";
goto finish;
} else
fdset_cloexec(fds, true);
if (arg_serialization)
assert_se(fdset_remove(fds, fileno(arg_serialization)) >= 0);
if (arg_running_as == MANAGER_SYSTEM)
/* Become a session leader if we aren't one yet. */
setsid();
/* Move out of the way, so that we won't block unmounts */
assert_se(chdir("/") == 0);
/* 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 we are init, we connect stdin/stdout/stderr to
* /dev/null and make sure we don't have a controlling
* tty. */
release_terminal();
if (getpid() == 1 && !skip_setup)
console_setup();
}
/* Open the logging devices, if possible and necessary */
log_open();
if (arg_show_status == _SHOW_STATUS_UNSET)
arg_show_status = SHOW_STATUS_YES;
/* Make sure we leave a core dump without panicing the
* kernel. */
if (getpid() == 1) {
install_crash_handler();
r = mount_cgroup_controllers(arg_join_controllers);
if (r < 0)
goto finish;
}
if (arg_running_as == MANAGER_SYSTEM) {
int v;
log_info(PACKAGE_STRING " running in %ssystem mode. (" SYSTEMD_FEATURES ")",
arg_action == ACTION_TEST ? "test " : "" );
v = detect_virtualization();
if (v > 0)
log_info("Detected virtualization %s.", virtualization_to_string(v));
write_container_id();
log_info("Detected architecture %s.", architecture_to_string(uname_architecture()));
if (in_initrd())
log_info("Running in initial RAM disk.");
/* Let's check whether /etc is already populated. We
* don't actually really check for that, but use
* /etc/machine-id as flag file. This allows container
* managers and installers to provision a couple of
* files already. If the container manager wants to
* provision the machine ID itself it should pass
* $container_uuid to PID 1. */
empty_etc = access("/etc/machine-id", F_OK) < 0;
if (empty_etc)
log_info("Running with unpopulated /etc.");
} else {
_cleanup_free_ char *t;
t = uid_to_name(getuid());
log_debug(PACKAGE_STRING " running in %suser mode for user "UID_FMT"/%s. (" SYSTEMD_FEATURES ")",
arg_action == ACTION_TEST ? " test" : "", getuid(), t);
}
if (arg_running_as == MANAGER_SYSTEM && !skip_setup) {
if (arg_show_status > 0)
status_welcome();
hostname_setup();
machine_id_setup(NULL);
loopback_setup();
bump_unix_max_dgram_qlen();
test_usr();
}
if (arg_running_as == MANAGER_SYSTEM && arg_runtime_watchdog > 0)
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 (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);
if (r < 0) {
log_emergency_errno(r, "Failed to drop capability bounding set: %m");
error_message = "Failed to drop capability bounding set";
goto finish;
}
}
if (arg_syscall_archs) {
r = enforce_syscall_archs(arg_syscall_archs);
if (r < 0) {
error_message = "Failed to set syscall architectures";
goto finish;
}
}
if (arg_running_as == MANAGER_USER)
/* 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) {
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");
else
log_info("Populated /etc with preset unit settings.");
}
}
r = manager_new(arg_running_as, 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";
goto finish;
}
m->confirm_spawn = arg_confirm_spawn;
m->runtime_watchdog = arg_runtime_watchdog;
m->shutdown_watchdog = arg_shutdown_watchdog;
m->userspace_timestamp = userspace_timestamp;
m->kernel_timestamp = kernel_timestamp;
m->initrd_timestamp = initrd_timestamp;
m->security_start_timestamp = security_start_timestamp;
m->security_finish_timestamp = security_finish_timestamp;
manager_set_defaults(m);
manager_set_show_status(m, arg_show_status);
manager_set_first_boot(m, empty_etc);
/* Remember whether we should queue the default job */
queue_default_job = !arg_serialization || arg_switched_root;
before_startup = now(CLOCK_MONOTONIC);
r = manager_startup(m, arg_serialization, fds);
if (r < 0)
log_error_errno(r, "Failed to fully start up daemon: %m");
/* This will close all file descriptors that were opened, but
* not claimed by any unit. */
fds = fdset_free(fds);
arg_serialization = safe_fclose(arg_serialization);
if (queue_default_job) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
Unit *target = NULL;
Job *default_unit_job;
log_debug("Activating default unit: %s", arg_default_unit);
r = manager_load_unit(m, arg_default_unit, NULL, &error, &target);
if (r < 0)
log_error("Failed to load default target: %s", bus_error_message(&error, r));
else if (target->load_state == UNIT_ERROR || target->load_state == UNIT_NOT_FOUND)
log_error_errno(target->load_error, "Failed to load default target: %m");
else if (target->load_state == UNIT_MASKED)
log_error("Default target masked.");
if (!target || target->load_state != UNIT_LOADED) {
log_info("Trying to load rescue target...");
r = manager_load_unit(m, SPECIAL_RESCUE_TARGET, NULL, &error, &target);
if (r < 0) {
log_emergency("Failed to load rescue target: %s", bus_error_message(&error, r));
error_message = "Failed to load rescue target";
goto finish;
} else if (target->load_state == UNIT_ERROR || target->load_state == UNIT_NOT_FOUND) {
log_emergency_errno(target->load_error, "Failed to load rescue target: %m");
error_message = "Failed to load rescue target";
goto finish;
} else if (target->load_state == UNIT_MASKED) {
log_emergency("Rescue target masked.");
error_message = "Rescue target masked";
goto finish;
}
}
assert(target->load_state == UNIT_LOADED);
if (arg_action == ACTION_TEST) {
printf("-> By units:\n");
manager_dump_units(m, stdout, "\t");
}
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));
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";
goto finish;
}
} else if (r < 0) {
log_emergency("Failed to isolate default target: %s", bus_error_message(&error, r));
error_message = "Failed to isolate default target";
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, 100 * USEC_PER_MSEC));
if (arg_action == ACTION_TEST) {
printf("-> By jobs:\n");
manager_dump_jobs(m, stdout, "\t");
retval = EXIT_SUCCESS;
goto finish;
}
}
for (;;) {
r = manager_loop(m);
if (r < 0) {
log_emergency_errno(r, "Failed to run main loop: %m");
error_message = "Failed to run main loop";
goto finish;
}
switch (m->exit_code) {
case MANAGER_RELOAD:
log_info("Reloading.");
r = parse_config_file();
if (r < 0)
log_error("Failed to parse config file.");
manager_set_defaults(m);
r = manager_reload(m);
if (r < 0)
log_error_errno(r, "Failed to reload: %m");
break;
case MANAGER_REEXECUTE:
if (prepare_reexecute(m, &arg_serialization, &fds, false) < 0) {
error_message = "Failed to prepare for reexecution";
goto finish;
}
reexecute = true;
log_notice("Reexecuting.");
goto finish;
case MANAGER_SWITCH_ROOT:
/* Steal the switch root parameters */
switch_root_dir = m->switch_root;
switch_root_init = m->switch_root_init;
m->switch_root = m->switch_root_init = NULL;
if (!switch_root_init)
if (prepare_reexecute(m, &arg_serialization, &fds, true) < 0) {
error_message = "Failed to prepare for reexecution";
goto finish;
}
reexecute = true;
log_notice("Switching root.");
goto finish;
case MANAGER_EXIT:
retval = m->return_value;
if (m->running_as == MANAGER_USER) {
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",
[MANAGER_KEXEC] = "kexec"
};
assert_se(shutdown_verb = table[m->exit_code]);
arm_reboot_watchdog = m->exit_code == MANAGER_REBOOT;
log_notice("Shutting down.");
goto finish;
}
default:
assert_not_reached("Unknown exit code.");
}
}
finish:
pager_close();
if (m)
arg_shutdown_watchdog = m->shutdown_watchdog;
m = manager_free(m);
for (j = 0; j < ELEMENTSOF(arg_default_rlimit); j++)
arg_default_rlimit[j] = mfree(arg_default_rlimit[j]);
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();
if (reexecute) {
const char **args;
unsigned i, args_size;
/* Close and disarm the watchdog, so that the new
* instance can reinitialize it, but doesn't get
* 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)
(void) 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
* can handle the SIGCHLD for them after
* deserializing. */
broadcast_signal(SIGTERM, false, true);
/* And switch root with MS_MOVE, because we remove the old directory afterwards and detach it. */
r = switch_root(switch_root_dir, "/mnt", true, MS_MOVE);
if (r < 0)
log_error_errno(r, "Failed to switch root, trying to continue: %m");
}
args_size = MAX(6, argc+1);
args = newa(const char*, args_size);
if (!switch_root_init) {
char sfd[DECIMAL_STR_MAX(int) + 1];
/* First try to spawn ourselves with the right
* path, and with full serialization. We do
* this only if the user didn't specify an
* explicit init to spawn. */
assert(arg_serialization);
assert(fds);
xsprintf(sfd, "%i", fileno(arg_serialization));
i = 0;
args[i++] = SYSTEMD_BINARY_PATH;
if (switch_root_dir)
args[i++] = "--switched-root";
args[i++] = arg_running_as == MANAGER_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)
(void) clearenv();
assert(i <= args_size);
(void) execv(args[0], (char* const*) args);
}
/* Try the fallback, if there is any, without any
* serialization. We pass the original argv[] and
* envp[]. (Well, modulo the ordering changes due to
* getopt() in argv[], and some cleanups in envp[],
* but let's hope that doesn't matter.) */
arg_serialization = safe_fclose(arg_serialization);
fds = fdset_free(fds);
/* Reopen the console */
(void) make_console_stdio();
for (j = 1, i = 1; j < (unsigned) argc; j++)
args[i++] = argv[j];
args[i++] = NULL;
assert(i <= args_size);
/* Reenable any blocked signals, especially important
* if we switch from initial ramdisk to init=... */
(void) reset_all_signal_handlers();
(void) reset_signal_mask();
if (switch_root_init) {
args[0] = switch_root_init;
(void) execv(args[0], (char* const*) args);
log_warning_errno(errno, "Failed to execute configured init, trying fallback: %m");
}
args[0] = "/sbin/init";
(void) execv(args[0], (char* const*) args);
if (errno == ENOENT) {
log_warning("No /sbin/init, trying fallback");
args[0] = "/bin/sh";
args[1] = NULL;
(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");
}
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
* here explicitly. valgrind will only generate nice output on
* exit(), not on exec(), hence let's do the former not the
* latter here. */
if (getpid() == 1 && RUNNING_ON_VALGRIND)
return 0;
#endif
if (shutdown_verb) {
char log_level[DECIMAL_STR_MAX(int) + 1];
char exit_code[DECIMAL_STR_MAX(uint8_t) + 1];
const char* command_line[11] = {
SYSTEMD_SHUTDOWN_BINARY_PATH,
shutdown_verb,
"--log-level", log_level,
"--log-target",
};
unsigned pos = 5;
_cleanup_strv_free_ char **env_block = NULL;
assert(command_line[pos] == NULL);
env_block = strv_copy(environ);
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:
command_line[pos++] = "kmsg";
break;
case LOG_TARGET_NULL:
command_line[pos++] = "null";
break;
case LOG_TARGET_CONSOLE:
default:
command_line[pos++] = "console";
break;
};
if (log_get_show_color())
command_line[pos++] = "--log-color";
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) {
char *e;
/* If we reboot let's set the shutdown
* watchdog and tell the shutdown binary to
* repeatedly ping it */
r = watchdog_set_timeout(&arg_shutdown_watchdog);
watchdog_close(r < 0);
/* Tell the binary how often to ping, ignore failure */
if (asprintf(&e, "WATCHDOG_USEC="USEC_FMT, arg_shutdown_watchdog) > 0)
(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() <= 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",
getpid() == 1 ? "freezing" : "quitting");
}
if (getpid() == 1) {
if (error_message)
manager_status_printf(NULL, STATUS_TYPE_EMERGENCY,
ANSI_HIGHLIGHT_RED "!!!!!!" ANSI_NORMAL,
"%s, freezing.", error_message);
freeze_or_reboot();
}
return retval;
}