X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fcore%2Fmain.c;h=fc85eedfe923ee3a40edf4670af21944a38d7244;hp=bc92f65fd6c9d211029aa104ecb31ba05f383030;hb=141a79f491fd4bf5ea0d66039065c9f9649bfc0e;hpb=71a6151083d842b2f5bf04e50239f0bf85d34d2e diff --git a/src/core/main.c b/src/core/main.c index bc92f65fd..fc85eedfe 100644 --- a/src/core/main.c +++ b/src/core/main.c @@ -82,15 +82,13 @@ static enum { ACTION_DUMP_CONFIGURATION_ITEMS, ACTION_DONE } arg_action = ACTION_RUN; - static char *arg_default_unit = NULL; static SystemdRunningAs arg_running_as = _SYSTEMD_RUNNING_AS_INVALID; - static bool arg_dump_core = true; static bool arg_crash_shell = false; static int arg_crash_chvt = -1; static bool arg_confirm_spawn = false; -static bool arg_show_status = true; +static ShowStatus arg_show_status = SHOW_STATUS_UNSET; static bool arg_switched_root = false; static char ***arg_join_controllers = NULL; static ExecOutput arg_default_std_output = EXEC_OUTPUT_JOURNAL; @@ -106,13 +104,12 @@ static char **arg_default_environment = NULL; static struct rlimit *arg_default_rlimit[RLIMIT_NLIMITS] = {}; static uint64_t arg_capability_bounding_set_drop = 0; static nsec_t arg_timer_slack_nsec = (nsec_t) -1; +static Set* arg_syscall_archs = NULL; +static FILE* arg_serialization = NULL; -static FILE* serialization = NULL; +static void nop_handler(int sig) {} -static void nop_handler(int sig) { -} - -_noreturn_ static void crash(int sig) { +noreturn static void crash(int sig) { if (getpid() != 1) /* Pass this on immediately, if this is not PID 1 */ @@ -131,7 +128,7 @@ _noreturn_ static void crash(int sig) { pid = fork(); if (pid < 0) - log_error("Caught <%s>, cannot fork for core dump: %s", signal_to_string(sig), strerror(errno)); + log_error("Caught <%s>, cannot fork for core dump: %m", signal_to_string(sig)); else if (pid == 0) { struct rlimit rl = {}; @@ -166,7 +163,7 @@ _noreturn_ static void crash(int sig) { else if (status.si_code != CLD_DUMPED) log_error("Caught <%s>, core dump failed.", signal_to_string(sig)); else - log_error("Caught <%s>, dumped core as pid %lu.", signal_to_string(sig), (unsigned long) pid); + log_error("Caught <%s>, dumped core as pid "PID_FMT".", signal_to_string(sig), pid); } } @@ -197,7 +194,7 @@ _noreturn_ static void crash(int sig) { _exit(1); } - log_info("Successfully spawned crash shell as pid %lu.", (unsigned long) pid); + log_info("Successfully spawned crash shell as pid "PID_FMT".", pid); } log_info("Freezing execution."); @@ -338,10 +335,9 @@ static int parse_proc_cmdline_word(const char *word) { } else if (startswith(word, "systemd.show_status=")) { int r; - if ((r = parse_boolean(word + 20)) < 0) + r = parse_show_status(word + 20, &arg_show_status); + if (r < 0) log_warning("Failed to parse show status switch %s. Ignoring.", word + 20); - else - arg_show_status = r; } else if (startswith(word, "systemd.default_standard_output=")) { int r; @@ -396,7 +392,7 @@ static int parse_proc_cmdline_word(const char *word) { "systemd.crash_shell=0|1 Run shell on crash\n" "systemd.crash_chvt=N Change to VT #N on crash\n" "systemd.confirm_spawn=0|1 Confirm every process spawn\n" - "systemd.show_status=0|1 Show status updates on the console during bootup\n" + "systemd.show_status=0|1|auto Show status updates on the console during bootup\n" "systemd.log_target=console|kmsg|journal|journal-or-kmsg|syslog|syslog-or-kmsg|null\n" " Log target\n" "systemd.log_level=LEVEL Log level\n" @@ -409,15 +405,16 @@ static int parse_proc_cmdline_word(const char *word) { "systemd.setenv=ASSIGNMENT Set an environment variable for all spawned processes\n"); } - } else if (streq(word, "quiet")) - arg_show_status = false; - else if (streq(word, "debug")) { + } else if (streq(word, "quiet")) { + if (arg_show_status == SHOW_STATUS_UNSET) + arg_show_status = SHOW_STATUS_AUTO; + } else if (streq(word, "debug")) { /* Log to kmsg, the journal socket will fill up before the * journal is started and tools running during that time * will block with every log message for for 60 seconds, * before they give up. */ log_set_max_level(LOG_DEBUG); - log_set_target(LOG_TARGET_KMSG); + log_set_target(detect_container(NULL) > 0 ? LOG_TARGET_CONSOLE : LOG_TARGET_KMSG); } else if (!in_initrd()) { unsigned i; @@ -462,7 +459,6 @@ DEFINE_SETTER(config_parse_target, log_set_target_from_string, "target") DEFINE_SETTER(config_parse_color, log_show_color_from_string, "color" ) DEFINE_SETTER(config_parse_location, log_show_location_from_string, "location") - static int config_parse_cpu_affinity2(const char *unit, const char *filename, unsigned line, @@ -600,17 +596,12 @@ static int config_parse_join_controllers(const char *unit, for (a = arg_join_controllers; *a; a++) { if (strv_overlap(*a, l)) { - char **c; - - c = strv_merge(*a, l); - if (!c) { + if (strv_extend_strv(&l, *a) < 0) { strv_free(l); strv_free_free(t); return log_oom(); } - strv_free(l); - l = c; } else { char **c; @@ -638,45 +629,48 @@ static int config_parse_join_controllers(const char *unit, static int parse_config_file(void) { const ConfigTableItem items[] = { - { "Manager", "LogLevel", config_parse_level2, 0, NULL }, - { "Manager", "LogTarget", config_parse_target, 0, NULL }, - { "Manager", "LogColor", config_parse_color, 0, NULL }, - { "Manager", "LogLocation", config_parse_location, 0, NULL }, - { "Manager", "DumpCore", config_parse_bool, 0, &arg_dump_core }, - { "Manager", "CrashShell", config_parse_bool, 0, &arg_crash_shell }, - { "Manager", "ShowStatus", config_parse_bool, 0, &arg_show_status }, - { "Manager", "CrashChVT", config_parse_int, 0, &arg_crash_chvt }, - { "Manager", "CPUAffinity", config_parse_cpu_affinity2, 0, NULL }, - { "Manager", "DefaultStandardOutput", config_parse_output, 0, &arg_default_std_output }, - { "Manager", "DefaultStandardError", config_parse_output, 0, &arg_default_std_error }, - { "Manager", "DefaultTimeoutStartSec", config_parse_sec, 0, &arg_default_timeout_start_usec }, - { "Manager", "DefaultTimeoutStopSec", config_parse_sec, 0, &arg_default_timeout_stop_usec }, - { "Manager", "DefaultRestartSec", config_parse_sec, 0, &arg_default_restart_usec }, - { "Manager", "DefaultStartLimitInterval", config_parse_sec, 0, &arg_default_start_limit_interval }, - { "Manager", "DefaultStartLimitBurst", config_parse_unsigned, 0, &arg_default_start_limit_burst }, - { "Manager", "JoinControllers", config_parse_join_controllers, 0, &arg_join_controllers }, - { "Manager", "RuntimeWatchdogSec", config_parse_sec, 0, &arg_runtime_watchdog }, - { "Manager", "ShutdownWatchdogSec", config_parse_sec, 0, &arg_shutdown_watchdog }, - { "Manager", "CapabilityBoundingSet", config_parse_bounding_set, 0, &arg_capability_bounding_set_drop }, - { "Manager", "TimerSlackNSec", config_parse_nsec, 0, &arg_timer_slack_nsec }, - { "Manager", "DefaultEnvironment", config_parse_environ, 0, &arg_default_environment }, - { "Manager", "DefaultLimitCPU", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_CPU]}, - { "Manager", "DefaultLimitFSIZE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_FSIZE]}, - { "Manager", "DefaultLimitDATA", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_DATA]}, - { "Manager", "DefaultLimitSTACK", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_STACK]}, - { "Manager", "DefaultLimitCORE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_CORE]}, - { "Manager", "DefaultLimitRSS", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_RSS]}, - { "Manager", "DefaultLimitNOFILE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NOFILE]}, - { "Manager", "DefaultLimitAS", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_AS]}, - { "Manager", "DefaultLimitNPROC", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NPROC]}, - { "Manager", "DefaultLimitMEMLOCK", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_MEMLOCK]}, - { "Manager", "DefaultLimitLOCKS", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_LOCKS]}, - { "Manager", "DefaultLimitSIGPENDING",config_parse_limit, 0, &arg_default_rlimit[RLIMIT_SIGPENDING]}, - { "Manager", "DefaultLimitMSGQUEUE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_MSGQUEUE]}, - { "Manager", "DefaultLimitNICE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NICE]}, - { "Manager", "DefaultLimitRTPRIO", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_RTPRIO]}, - { "Manager", "DefaultLimitRTTIME", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_RTTIME]}, - { NULL, NULL, NULL, 0, NULL } + { "Manager", "LogLevel", config_parse_level2, 0, NULL }, + { "Manager", "LogTarget", config_parse_target, 0, NULL }, + { "Manager", "LogColor", config_parse_color, 0, NULL }, + { "Manager", "LogLocation", config_parse_location, 0, NULL }, + { "Manager", "DumpCore", config_parse_bool, 0, &arg_dump_core }, + { "Manager", "CrashShell", config_parse_bool, 0, &arg_crash_shell }, + { "Manager", "ShowStatus", config_parse_show_status, 0, &arg_show_status }, + { "Manager", "CrashChVT", config_parse_int, 0, &arg_crash_chvt }, + { "Manager", "CPUAffinity", config_parse_cpu_affinity2, 0, NULL }, + { "Manager", "JoinControllers", config_parse_join_controllers, 0, &arg_join_controllers }, + { "Manager", "RuntimeWatchdogSec", config_parse_sec, 0, &arg_runtime_watchdog }, + { "Manager", "ShutdownWatchdogSec", config_parse_sec, 0, &arg_shutdown_watchdog }, + { "Manager", "CapabilityBoundingSet", config_parse_bounding_set, 0, &arg_capability_bounding_set_drop }, +#ifdef HAVE_SECCOMP + { "Manager", "SystemCallArchitectures", config_parse_syscall_archs, 0, &arg_syscall_archs }, +#endif + { "Manager", "TimerSlackNSec", config_parse_nsec, 0, &arg_timer_slack_nsec }, + { "Manager", "DefaultStandardOutput", config_parse_output, 0, &arg_default_std_output }, + { "Manager", "DefaultStandardError", config_parse_output, 0, &arg_default_std_error }, + { "Manager", "DefaultTimeoutStartSec", config_parse_sec, 0, &arg_default_timeout_start_usec }, + { "Manager", "DefaultTimeoutStopSec", config_parse_sec, 0, &arg_default_timeout_stop_usec }, + { "Manager", "DefaultRestartSec", config_parse_sec, 0, &arg_default_restart_usec }, + { "Manager", "DefaultStartLimitInterval", config_parse_sec, 0, &arg_default_start_limit_interval }, + { "Manager", "DefaultStartLimitBurst", config_parse_unsigned, 0, &arg_default_start_limit_burst }, + { "Manager", "DefaultEnvironment", config_parse_environ, 0, &arg_default_environment }, + { "Manager", "DefaultLimitCPU", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_CPU] }, + { "Manager", "DefaultLimitFSIZE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_FSIZE] }, + { "Manager", "DefaultLimitDATA", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_DATA] }, + { "Manager", "DefaultLimitSTACK", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_STACK] }, + { "Manager", "DefaultLimitCORE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_CORE] }, + { "Manager", "DefaultLimitRSS", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_RSS] }, + { "Manager", "DefaultLimitNOFILE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NOFILE] }, + { "Manager", "DefaultLimitAS", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_AS] }, + { "Manager", "DefaultLimitNPROC", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NPROC] }, + { "Manager", "DefaultLimitMEMLOCK", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_MEMLOCK] }, + { "Manager", "DefaultLimitLOCKS", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_LOCKS] }, + { "Manager", "DefaultLimitSIGPENDING", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_SIGPENDING] }, + { "Manager", "DefaultLimitMSGQUEUE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_MSGQUEUE] }, + { "Manager", "DefaultLimitNICE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NICE] }, + { "Manager", "DefaultLimitRTPRIO", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_RTPRIO] }, + { "Manager", "DefaultLimitRTTIME", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_RTTIME] }, + {} }; _cleanup_fclose_ FILE *f; @@ -700,35 +694,6 @@ static int parse_config_file(void) { return 0; } -static int parse_proc_cmdline(void) { - _cleanup_free_ char *line = NULL; - char *w, *state; - size_t l; - int r; - - r = proc_cmdline(&line); - if (r < 0) - log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r)); - if (r <= 0) - return 0; - - FOREACH_WORD_QUOTED(w, l, line, state) { - _cleanup_free_ char *word; - - word = strndup(w, l); - if (!word) - return log_oom(); - - r = parse_proc_cmdline_word(word); - if (r < 0) { - log_error("Failed on cmdline argument %s: %s", word, strerror(-r)); - return r; - } - } - - return 0; -} - static int parse_argv(int argc, char *argv[]) { enum { @@ -903,12 +868,14 @@ static int parse_argv(int argc, char *argv[]) { break; case ARG_SHOW_STATUS: - r = optarg ? parse_boolean(optarg) : 1; - if (r < 0) { - log_error("Failed to parse show status boolean %s.", optarg); - return r; - } - arg_show_status = r; + 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: { @@ -929,10 +896,10 @@ static int parse_argv(int argc, char *argv[]) { return -errno; } - if (serialization) - fclose(serialization); + if (arg_serialization) + fclose(arg_serialization); - serialization = f; + arg_serialization = f; break; } @@ -1198,6 +1165,39 @@ static int initialize_join_controllers(void) { return 0; } +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("Failed to add architecture to seccomp: %s", strerror(-r)); + goto finish; + } + } + + r = seccomp_load(seccomp); + if (r < 0) + log_error("Failed to add install architecture seccomp: %s", strerror(-r)); + +finish: + seccomp_release(seccomp); + return r; +#else + return 0; +#endif +} + int main(int argc, char *argv[]) { Manager *m = NULL; int r, retval = EXIT_FAILURE; @@ -1213,7 +1213,7 @@ int main(int argc, char *argv[]) { dual_timestamp security_finish_timestamp = { 0ULL, 0ULL }; static char systemd[] = "systemd"; bool skip_setup = false; - int j; + unsigned j; bool loaded_policy = false; bool arm_reboot_watchdog = false; bool queue_default_job = false; @@ -1328,6 +1328,7 @@ int main(int argc, char *argv[]) { /* Running inside a container, as PID 1 */ arg_running_as = SYSTEMD_SYSTEM; log_set_target(LOG_TARGET_CONSOLE); + log_close_console(); /* force reopen of /dev/console */ log_open(); /* For the later on, see above... */ @@ -1378,7 +1379,7 @@ int main(int argc, char *argv[]) { goto finish; if (arg_running_as == SYSTEMD_SYSTEM) - if (parse_proc_cmdline() < 0) + if (parse_proc_cmdline(parse_proc_cmdline_word) < 0) goto finish; log_parse_environment(); @@ -1440,8 +1441,8 @@ int main(int argc, char *argv[]) { } else fdset_cloexec(fds, true); - if (serialization) - assert_se(fdset_remove(fds, fileno(serialization)) >= 0); + if (arg_serialization) + assert_se(fdset_remove(fds, fileno(arg_serialization)) >= 0); if (arg_running_as == SYSTEMD_SYSTEM) /* Become a session leader if we aren't one yet. */ @@ -1480,15 +1481,19 @@ int main(int argc, char *argv[]) { if (in_initrd()) log_info("Running in initial RAM disk."); - } else - log_debug(PACKAGE_STRING " running in user mode. (" SYSTEMD_FEATURES ")"); + } else { + _cleanup_free_ char *t = uid_to_name(getuid()); + log_debug(PACKAGE_STRING " running in user mode for user "PID_FMT"/%s. (" SYSTEMD_FEATURES ")", + getuid(), t); + } if (arg_running_as == SYSTEMD_SYSTEM && !skip_setup) { - if (arg_show_status || plymouth_running()) + if (arg_show_status > 0 || plymouth_running()) status_welcome(); #ifdef HAVE_KMOD - kmod_setup(); + if (detect_container(NULL) <= 0) + kmod_setup(); #endif hostname_setup(); machine_id_setup(); @@ -1519,6 +1524,12 @@ int main(int argc, char *argv[]) { } } + if (arg_syscall_archs) { + r = enforce_syscall_archs(arg_syscall_archs); + if (r < 0) + goto finish; + } + if (arg_running_as == SYSTEMD_USER) { /* Become reaper of our children */ if (prctl(PR_SET_CHILD_SUBREAPER, 1) < 0) { @@ -1531,7 +1542,7 @@ int main(int argc, char *argv[]) { if (arg_running_as == SYSTEMD_SYSTEM) bump_rlimit_nofile(&saved_rlimit_nofile); - r = manager_new(arg_running_as, !!serialization, &m); + r = manager_new(arg_running_as, &m); if (r < 0) { log_error("Failed to allocate manager object: %s", strerror(-r)); goto finish; @@ -1558,14 +1569,16 @@ int main(int argc, char *argv[]) { if (arg_default_environment) manager_environment_add(m, NULL, arg_default_environment); + if (arg_show_status == SHOW_STATUS_UNSET) + arg_show_status = SHOW_STATUS_YES; manager_set_show_status(m, arg_show_status); /* Remember whether we should queue the default job */ - queue_default_job = !serialization || arg_switched_root; + queue_default_job = !arg_serialization || arg_switched_root; before_startup = now(CLOCK_MONOTONIC); - r = manager_startup(m, serialization, fds); + r = manager_startup(m, arg_serialization, fds); if (r < 0) log_error("Failed to fully start up daemon: %s", strerror(-r)); @@ -1574,9 +1587,9 @@ int main(int argc, char *argv[]) { fdset_free(fds); fds = NULL; - if (serialization) { - fclose(serialization); - serialization = NULL; + if (arg_serialization) { + fclose(arg_serialization); + arg_serialization = NULL; } if (queue_default_job) { @@ -1669,7 +1682,7 @@ int main(int argc, char *argv[]) { case MANAGER_REEXECUTE: - if (prepare_reexecute(m, &serialization, &fds, false) < 0) + if (prepare_reexecute(m, &arg_serialization, &fds, false) < 0) goto finish; reexecute = true; @@ -1683,7 +1696,7 @@ int main(int argc, char *argv[]) { m->switch_root = m->switch_root_init = NULL; if (!switch_root_init) - if (prepare_reexecute(m, &serialization, &fds, true) < 0) + if (prepare_reexecute(m, &arg_serialization, &fds, true) < 0) goto finish; reexecute = true; @@ -1714,15 +1727,27 @@ int main(int argc, char *argv[]) { } finish: - if (m) + if (m) { manager_free(m); + m = NULL; + } - for (j = 0; j < RLIMIT_NLIMITS; j++) + for (j = 0; j < ELEMENTSOF(arg_default_rlimit); j++) { free(arg_default_rlimit[j]); + arg_default_rlimit[j] = NULL; + } free(arg_default_unit); + arg_default_unit = NULL; + free_join_controllers(); + strv_free(arg_default_environment); + arg_default_environment = NULL; + + set_free(arg_syscall_archs); + arg_syscall_archs = NULL; + label_finish(); if (reexecute) { @@ -1745,7 +1770,7 @@ finish: * initrd, but don't wait for them, so that we * can handle the SIGCHLD for them after * deserializing. */ - broadcast_signal(SIGTERM, false); + broadcast_signal(SIGTERM, false, true); /* And switch root */ r = switch_root(switch_root_dir); @@ -1764,10 +1789,10 @@ finish: * this only if the user didn't specify an * explicit init to spawn. */ - assert(serialization); + assert(arg_serialization); assert(fds); - snprintf(sfd, sizeof(sfd), "%i", fileno(serialization)); + snprintf(sfd, sizeof(sfd), "%i", fileno(arg_serialization)); char_array_0(sfd); i = 0; @@ -1793,9 +1818,9 @@ finish: * getopt() in argv[], and some cleanups in envp[], * but let's hope that doesn't matter.) */ - if (serialization) { - fclose(serialization); - serialization = NULL; + if (arg_serialization) { + fclose(arg_serialization); + arg_serialization = NULL; } if (fds) { @@ -1806,7 +1831,7 @@ finish: /* Reopen the console */ make_console_stdio(); - for (j = 1, i = 1; j < argc; j++) + for (j = 1, i = 1; j < (unsigned) argc; j++) args[i++] = argv[j]; args[i++] = NULL; assert(i <= args_size); @@ -1831,11 +1856,15 @@ finish: log_warning("Failed to execute /sbin/init, giving up: %m"); } - if (serialization) - fclose(serialization); + if (arg_serialization) { + fclose(arg_serialization); + arg_serialization = NULL; + } - if (fds) + if (fds) { fdset_free(fds); + fds = NULL; + } #ifdef HAVE_VALGRIND_VALGRIND_H /* If we are PID 1 and running under valgrind, then let's exit @@ -1852,10 +1881,11 @@ finish: shutdown_verb, NULL }; - char **env_block; + _cleanup_strv_free_ char **env_block = NULL; + env_block = strv_copy(environ); if (arm_reboot_watchdog && arg_shutdown_watchdog > 0) { - char e[32]; + char *e; /* If we reboot let's set the shutdown * watchdog and tell the shutdown binary to @@ -1863,15 +1893,11 @@ finish: watchdog_set_timeout(&arg_shutdown_watchdog); watchdog_close(false); - /* Tell the binary how often to ping */ - snprintf(e, sizeof(e), "WATCHDOG_USEC=%llu", (unsigned long long) arg_shutdown_watchdog); - char_array_0(e); - - env_block = strv_append(environ, e); - } else { - env_block = strv_copy(environ); + /* Tell the binary how often to ping, ignore failure */ + if (asprintf(&e, "WATCHDOG_USEC="USEC_FMT, arg_shutdown_watchdog) > 0) + strv_push(&env_block, e); + } else watchdog_close(true); - } /* Avoid the creation of new processes forked by the * kernel; at this point, we will not listen to the @@ -1880,7 +1906,6 @@ finish: cg_uninstall_release_agent(SYSTEMD_CGROUP_CONTROLLER); execve(SYSTEMD_SHUTDOWN_BINARY_PATH, (char **) command_line, env_block); - free(env_block); log_error("Failed to execute shutdown binary, freezing: %m"); }